1. Garden lamps should use broken stone lampshades, and the lampshade tray should be made of cast aluminum. If glass lampshades are used, the lampshade bayonet should be lined with rubber rings, and the fastening bolts should be made of stainless steel.
2. The surface of courtyard lamp castings shall not have defects such as cracks, sand holes, loose pores and inclusions that affect the structural performance and view.
3. The door locks and hinges of the aluminum or glass fiber reinforced plastic lamp holder with open door holes should be intact, and the switch should be flexible and reliable.

4. The appearance of courtyard lamp castings, lamp arms, lamp poles painted or sprayed shall comply with the current industry standards regarding paint and spraying quality standards.

1. can be installed independently, no need to dig trenches, buried lines, backfill, save construction costs;

2. no need to purchase power capacity equipment, save the cost of the corresponding supporting equipment;

3. Solar lamps and lanterns can realize automatic control without personnel management and save management expenses;

4. Require energy from the sun, do not use conventional power energy, save operating costs;

5. easy maintenance, no electric shock accident, safe use;

6. energy saving: ether sunshine conversion to provide electricity, inexhaustible;

7. environmental protection: no pollution, no noise, no radiation;

8. safety: the use of voltage is 12V, no electric shock, fire and other accidents;

9. convenient: simple installation, do not need to wire or “disembowelling” digging construction, there is no power cut and power limit concerns, in the same use in places without electricity;

10. long life: the use of high efficiency energy-saving light source, light efficiency, branch low pressure, long-term durability;

11. less investment: no need to pay electricity, no need to track maintenance, operation and maintenance costs are low;

12. widely applicable: in the sunshine can be used, used in the city square, community, schools, factories, villages, bathing beaches, scenic spots, mountain areas, islands and other lighting projects;

13. high grade: green, environmental protection, energy saving, high-tech, is the symbol of the image of the use of units, grade, grade

Solar street lights are mainly composed of solar cell components, intelligent controllers, maintenance-free batteries, light sources, light poles and structural parts.
The working principle of solar street lights is: solar cell modules convert solar radiation into electrical energy during the day and charge the maintenance-free battery. At night, the battery provides power to the light source load, and the light source automatically turns on when it is dark. The intelligent controller protects the battery from overcharging and overdischarging, and controls the turn-on and lighting time of the light source
Jiangsu Bo Siwei-Detailed Explanation of Solar Street Lights

Solar street lights are mainly composed of solar cell components, intelligent controllers, maintenance-free batteries, light sources, light poles and structural parts.

The working principle of Solar Street Light is:
“Solar battery components convert solar radiation into electrical energy during the day, and charge the maintenance-free battery. At night, the battery provides power to the light source load. The light source will automatically turn on when it is dark. The intelligent controller protects the battery from overcharging and over-discharging. , And control the turn-on and lighting time of the light source.
The installation process of solar street lights:

1.) Dig the subgrade of the ground cage and the battery box. After the roadbed is dug, irrigate the ground cage and the subgrade of the battery box. Each subgrade must be leveled. After the roadbed is poured, the street lights can be installed after 15 days of maintenance.

2.) Put the battery into the previously excavated battery roadbed, cover the soil, and pass the battery wires through the 2-inch PVC pipe that was poured into the roadbed in advance. Make sure that the wire pipes are exposed to the foundation of the ground cage.

3.) Open the Solar Panel in the box, place the cardboard on the ground where the solar panel receives the sun, and then align the holes of the solar bracket (if the solar panel hole is small, use a drill to ream), use the bolt to flatten the pad and pass through Place a washer on the hole, screw on the nut, and use a 17 wrench to tighten the 4 bolts.

4.) Open the cover of the control box with an inner hexagon, and screw the inner hexagon bolts back to the original place. Put a washer with bolts on the place where the control box is fixed. After passing through the hole, put the washer on, screw on the nut, and then fix the wrench with 10 to tighten the nut.

5.) Drill two holes on the company’s nameplate, and drill two holes on the cover of the control box according to the corresponding holes on the nameplate, and fix the company’s nameplate with two studs with a nail gun.

6.) Cut 2 thick and 2 small wires to a length of meters, and pass the iron wire through the head, pull the 4 wires from the control box all the way to the side of the light pole, and remove the 4 wires on the light pole head. The wires are knotted, and the wires from the control box are wrapped around the cover of the control box.

7.) Fix the two thicker wires with tape on the lamp pole head, loosen the two bolts on the lamp arm, take off the lamp arm, hook out the two smaller wires with the hook, and pass the wires through the lamp Arm, screw back the bolts you just loosened, and fix the 2 thin wires with tape to the exit of the lamp arm.

8.) Put the light pole next to the ground cage, put a stool on the small head, install a solar panel on the top, and connect the solar wire. The solar panel depends on the installation position and faces the south. Tighten the bolts on the bracket with a wrench.

9.) Connect the LED lamp holder and the two wires passing from the lamp pole to the lamp arm, fix it with a plastic head, and then tie it with a nylon cable tie. Three nylon cable ties should be tied, and the four bolts are fixed to the lamp holder with an inner hexagon. , Make sure that the lamp cap is parallel to the pole.

10.) Tear off the plastic tape on the threaded part of the ground cage exposed on the ground, and place a flat washer, spring washer, and nut on each side of the exposed roadbed of the ground cage. Each light pole needs 4 flat washer, 4 spring washer, and 4 Nut.

11.) Move the foot of the light pole to the position of the 4 nuts in the ground cage, one person presses the foot of the light pole, step on it with the foot, and the three people behind stand up the light pole with their shoulders, as the heel of the light pole After the 4 bolts of the cage are aligned, put flat washers and spring washers on the diagonal corners and screw the nuts on. The two people holding the light pole up hold the light pole, and the two people fix the nut. The nut must be tightened.

12.) Cut the insulation board. The thickness of the insulation board is ×. According to the hole position of the controller, 6 holes are to be drilled on the board, and then a hole fixed on the light pole is drilled. An insulating board where the controller is fixed with screws.

13.) Connect the controller to the control box, connect the battery first, and then connect the lamp head line, and see if the lamp head is on, then connect the solar panel line. Fix the controller on the bolt, and then screw on the nut. Unscrew the bolts on the cover of the control box, put on the cover of the control box, screw on the bolts, and tighten with an Allen key.

Features:
1.) The lighting of night scenes should be considered in accordance with the urban planning.
City night lighting should be closely integrated with city planning and is an integral part of city planning. According to the overall plan, focus on the construction of the urban lighting project that reflects the characteristics of a city. Not only is the lighting function reasonable, but also has a high artistic level, making it a classic of the city’s image.
2.) Design night scenes according to city functions
According to the deployment of the city’s master plan, the night scene design should be consistent with the features of the city and the building’s functions. Streets and lots with different functions, specific environments and buildings, their lighting should have different atmosphere, different brightness or different style requirements.
3.) Regard the urban lighting project as an important part of the urban environmental landscape.
The constituent elements of the urban environment landscape include natural objects and artificial buildings, both large and small, some focus on practical functions, and some highlight decorative ornamental value. From the past, the focus on function has been transformed into both practicality and aesthetics. In the future, it will be sustainable, standardized, and planned to expand implementation and improve the level of technology and art.
4.) The city lighting project is closely linked with the construction project design.
Efforts to integrate the urban lighting engineering work into the construction engineering design and construction process simultaneously. In modern municipal engineering, key cultural relics and old neighborhood renovation, building facade renovation, etc., the two can be coordinated.
5.) Strengthen the management of urban lighting engineering work.
Management work is of great significance to maintaining the normal operation of urban lighting engineering facilities and good lighting effects. Including the scientific management and legalization of management. At the same time, it is necessary to use modern control technology for scientific management, which can not only guarantee the lighting rate and the intact rate of the facilities, but also ensure the economy and practicality to replace the best effect. The construction of urban night scene lighting projects must be tailored to local conditions, within the limits of ability, and the limited funds should be used well. Do good and practical things for the broad masses of people.
The outdoor lighting project is an art of the surrounding landscape or a specific landscape. Of course, this must be a technical life. Therefore, the first consideration is the safety of the project and the energy saving, low carbon and environmental protection. However, with the era of war against urban culture The background and people’s life sentiment are also constantly improving, and people are paying more and more attention to the aesthetics of urban outdoor lighting projects.
Outdoor lighting projects can be divided into two categories:
1: Commercial lighting (hotel lighting, square lighting, building lighting)
2: Municipal lighting (bridge lighting, scenic lighting, ancient building lighting)
Compared with simple buildings, it is because of the lighting effect that adds lighting to them that makes it different. The image art of outdoor lighting project. A good urban outdoor lighting project design reflects this to a certain extent. The historical and cultural background of the city and its socio-economic development. Therefore, many outdoor lighting engineering designers use lights to express the artistic image of the city’s night scene. To brighten different buildings, through the light and dark, virtual and real, light and shadow, dynamic and static, cold and warm modern lighting technology, the bright design technology is organically combined, showing a city different from the daytime Outdoor lighting project.
The outdoor lighting project builds a splendid dream of a city. Technology is the means to realize dreams, and art is the ultimate goal of reaching dreams. Modern cities have different forms due to their unique geographical landscape, differentiated humanistic environment and their different aesthetic concepts. Buildings of different styles show their grandeur under the lighting decoration of the outdoor lighting project. Therefore, the outdoor lighting project strengthens the unique image of the city, thereby exerting the iconic value of the landscape. And outdoor lighting engineering designers try to use various technical means and methods to realize their artistic dreams, making this city even more unique under the background of outdoor lighting engineering.
I believe many people will discover that no matter how big or good the city is, if the prosperous level is not beautiful, and the beautiful lighting is not arranged, and the night scene does not achieve the desired effect, then the city is no matter how good it is, no matter how economical. There will also be a sparse flow of people in the city, and if it goes on for a long time, then there will be a lighting project that is not in the past, so this is a very terrible thing. And for example, although some cities are small, but each area of them is carefully designed and built, then the prosperous streets, night scenes and other issues can make people feel the intention of urban architecture. Therefore, the significance of outdoor lighting projects is so important now that they can improve the city.
If the current city has problems such as the night view is not prosperous, it can be quickly improved. Because of the existence of outdoor lighting projects, the current night view of the city can basically achieve these desired night views, regardless of the nature of the city. Whether they are prosperous or not, they all have reasons to keep people coming and going, and finally highlight the atmospheric scenery that they want to express.
Important public buildings, historical sites, commercial buildings, square sculptures, or some special-shaped landmarks, transportation facilities such as bridges or MRT stations in the city can be beautified with lights at night, so that the night scene of the city is not only the signboard There can be a different atmosphere outside of neon lights.
The overall consideration of the landscape lighting engineering design of the building`s led lighting project:
1.) Viewing direction: The building may be seen from different directions. Angles can be seen, but generally, before designing, we must first decide a specific direction as the main viewing direction.
2.) Distance: The viewing distance of the average person. The distance will affect the clarity of people’s observation of the appearance of the facade, and at the same time affect the decision of the level of illuminance.
3.) Surrounding environment and background: The brightness of the surrounding environment and background will affect the illuminance required by the subject. If the surrounding is very dark, a little light is enough to illuminate the subject. If the surrounding is very bright, the light must be strengthened to highlight the subject. In addition to the surrounding environment of the building, the exterior wall material of the building is the most momentous factor affecting the lighting effect. Basically speaking, materials with rough surfaces such as concrete, stone, and ceramic tiles have better effects after being irradiated with light. Materials with smooth surfaces such as aluminum, stainless steel, and glass will cause total reflection, not only the effect of light is not obvious. And it will cause pollution due to reflection. This phenomenon is especially serious with reflective glass. Don’t be careful.

Solar photovoltaic power generation system is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. It has two modes of independent operation and grid-connected operation. Independently operating photovoltaic power generation systems need batteries as energy storage devices, which are mainly used in remote areas without power grids and scattered populations. The overall system cost is very high; in areas with public power grids, photovoltaic power generation systems are connected to the grid and run in parallel. The omission of batteries can not only greatly reduce the cost, but also has higher power generation efficiency and better environmental performance.
Overview:
Solar power generation is divided into solar thermal power generation and photovoltaic power generation. Generally speaking, solar power generation refers to solar photovoltaic power generation, referred to as “photovoltaic”. Photovoltaic power generation is a technology that uses the photovoltaic effect of the semiconductor interface to directly convert light energy into electrical energy. The key element of this technology is the solar cell. After the solar cells are connected in series, they can be packaged and protected to form a large-area solar cell module, and then combined with power controllers and other components to form a photovoltaic power generation device.
Theoretically speaking, photovoltaic power generation technology can be used in any situation where power is needed, from spacecraft, down to household power sources, as large as megawatt power stations, as small as toys, and photovoltaic power sources are everywhere. The most basic components of solar photovoltaic power generation are solar cells (sheets), including monocrystalline silicon, polycrystalline silicon, amorphous silicon and thin-film batteries. Among them, single crystal and polycrystalline batteries are used the most, and amorphous batteries are used in some small systems and computer auxiliary power supplies. The efficiency of China’s domestic crystalline silicon cells is about 10 to 13%, and the efficiency of similar products in the world is about 12 to 14%. Solar panels composed of one or more solar cells are called photovoltaic modules. Photovoltaic power generation products are mainly used in three aspects: one is to provide power for non-electricity occasions; the other is solar daily-use electronic products, such as various solar chargers, solar street lights and solar lawn lamps, etc.; third is grid-connected power generation. This has been widely implemented in developed countries. By 2009, China’s grid-connected power generation has not yet begun to be fully promoted. However, part of the electricity used for the 2008 Beijing Olympics was provided by solar power and wind power.
It is predicted that solar photovoltaic power generation will occupy an important position in the world’s energy consumption in the 21st century. It will not only replace some conventional energy sources, but also become the main body of the world’s energy supply. It is estimated that by 2030, renewable energy will account for more than 30% of the total energy structure, and solar photovoltaic power generation will account for more than 10% of the world’s total power supply; by 2040, renewable energy will account for more than 10% of the total power supply. More than 50% of the energy consumption, solar photovoltaic power generation will account for more than 20% of the total electricity; by the end of the 21st century, renewable energy will account for more than 80% of the energy structure, and solar power generation will account for more than 60%. These figures are sufficient to show the development prospects of the solar photovoltaic industry and its important strategic position in the energy field.
Taxonomy:
Photovoltaic power generation systems are divided into independent photovoltaic systems and grid-connected photovoltaic systems.
Independent photovoltaic power plants include power supply systems for villages in remote areas, solar household power systems, communication signal power supplies, cathodic protection, solar street lights, and other photovoltaic power generation systems with batteries that can operate independently.
Grid-connected photovoltaic power generation system is a photovoltaic power generation system that is connected to the grid and transmits power to the grid. It can be divided into grid-connected power generation systems with and without batteries. The grid-connected power generation system with storage battery is schedulable and can be merged into or out of the grid as needed. It also has the function of backup power supply, which can provide emergency power when the grid is out of power. Photovoltaic grid-connected power generation systems with batteries are often installed in residential buildings; grid-connected power generation systems without batteries do not have the functions of dispatchability and backup power, and are generally installed on larger systems.
Photovoltaic panels:
Photovoltaic panels are a kind of power generation device that collects heat when exposed to sunlight and converts light energy into direct current. It is composed of thin solid photovoltaic cells almost entirely made of semiconductor materials (such as silicon). Since there are no moving parts, it can be operated for a long time without causing any loss. Simple photovoltaic cells can provide energy for watches and computers, while more complex photovoltaic systems can provide lighting for houses and power the grid. Photovoltaic panel components can be made into different shapes, and the components can be connected to generate more electricity. Rooftops and building surfaces will use photovoltaic panel components, and even used as a part of windows, skylights or shading devices. These photovoltaic facilities are usually called photovoltaic systems attached to buildings.
Photovoltaic technology:
The sun is a natural source of energy. Every living creature on the earth has the ability to function, and even its survival, is due to the energy directly or indirectly from the sun. Our earth is almost 100 million miles away from the sun. The radiant energy it intercepts has been incredibly small, that is, about three ten millionths. Even such a small amount of energy is actually 100,000 times larger than the existing power generation capacity of the entire world! The world, especially the industrialized countries, began to feel energy shortages. Therefore, people began to turn to solar energy to solve the energy crisis.
Solar photovoltaic
Solar energy can be supplied unlimitedly every day, and the quantity is huge. If it is used in a large power plant, the greenhouse effect will be reduced. Some energy experts and environmental protection experts believe that the thermal impact of solar energy is much smaller than that of any other alternatives in meeting human energy needs in the future. As a new energy source that does not pollute the environment and is inexhaustible, it is everywhere. Especially in terms of power supply, some experts believe that solar power will eventually account for 20% of the power supply.
Solar energy is a kind of radiant energy. Solar power generation means that to directly convert sunlight into electrical energy, it must be converted into electrical energy with the help of an energy converter. The process of directly converting light energy into electrical energy is exactly called the photovoltaic effect. Without the help of any other mechanical parts, the energy in the light is obtained by the electrons of the semiconductor device, so electrical energy is generated. This kind of energy converter that converts light energy into electrical energy is a solar cell. Solar cells, like transistors, are made of semiconductors. Its main material is silicon, but there are also some other alloys. The high-purity silicon used in the manufacture of solar cells has to undergo a special purification process. As long as the solar cell is irradiated by sunlight or light, it can convert light energy into electrical energy, so that current flows from one side to the other, and generally can generate electricity equivalent to 10-20% of the received light energy. Generally speaking, the stronger the light, the more electricity is generated. In order to minimize the light reflection of the Solar Panel and convert light energy into electric energy, a layer of film that prevents light reflection is usually covered on it, making the surface of the solar panel purple. The basis of its working principle is the photovoltaic effect of the semiconductor PN junction. The so-called photovoltaic effect is when the object is illuminated, the charge distribution state in the object changes to produce an effect of electromotive force and current. When sunlight or other light illuminates the PN junction of the semiconductor, a voltage (called photo-generated voltage) appears on both sides of the PN junction. This phenomenon is the famous photovoltaic effect. Short-circuit the PN junction, and current will be generated.
The main advantage of solar power generation is that solar cells can be installed in spaces that are not normally used, such as the roof, without noise, have a long lifespan, and hardly need to be adjusted once they are installed. Now, as long as the roof is filled with solar cells, the self-sufficiency of electricity in the home can be achieved. Nowadays, the main use of solar energy is no longer small-scale, but professional in nature. It has played an important role from the military field, the communications field to the urban construction field. Venezuela has also launched cheap solar cars, and European scientists have developed lightweight solar cells that can be worn on the body. There is a huge room for development in the use of solar energy, and related technologies may achieve breakthroughs in a short period of time. It has been used by many developed countries as an important part of their energy strategy.
Principles of power generation:
Solar cells are devices that respond to light and can convert light energy into electricity. There are many kinds of materials that can produce photovoltaic effect, such as: single crystal silicon, polycrystalline silicon, amorphous silicon, gallium arsenide, indium copper selenium and so on. Their power generation principles are basically the same, and now take the crystal as an example to describe the process of photovoltaic power generation. P-type crystalline silicon can be doped with phosphorus to obtain N-type silicon, forming a P-N junction. When the light shines on the solar cell
Example of solar photovoltaic power generation system
On the surface, part of the photons are absorbed by the silicon material; the energy of the photons is transferred to the silicon atoms, causing the electrons to transition and become free electrons, which form a potential difference on both sides of the PN junction. When the circuit is connected externally, the voltage Under the action of, there will be current flowing through the external circuit to produce a certain output power. The essence of this process is: the process of converting photon energy into electrical energy.
Solar photovoltaic power calculation:
The solar AC power generation system is composed of solar panels, charge controllers, inverters and batteries; the solar DC power generation system does not include inverters. In order to enable the solar power generation system to provide sufficient power for the load, it is necessary to select various components reasonably according to the power of the electrical appliances. Take the 100W output power and use it for 6 hours a day as an example to introduce the calculation method:
1. First, calculate the number of watt hours consumed per day (including the loss of the inverter): if the conversion efficiency of the inverter is 90%, when the output power is 100W, the actual output power required should be 100W/90 %=111W; if it is used for 5 hours a day, the power consumption is 111W*5 hours=555Wh.
2. Calculate the solar panel: Calculate according to the effective daily sunshine time of 6 hours, and take into account the charging efficiency and the loss during the charging process, the output power of the solar panel should be 555Wh/6h/70%=130W. 70% of which is the actual power used by solar panels during charging
application:
In the 1960s, scientists already applied solar cells to space technology-power supply from communication satellites. At the end of the 20th century, in the process of continuous self-reflection on human beings, photovoltaic power generation, such a clean and direct form of energy, has become more and more important.
Solar photovoltaic system display
Kindness, not only in space applications, but also in many fields. Such as: Solar Garden Lights, solar power household systems, independent systems powered by villages, photovoltaic water pumps (drinking water or irrigation), communication power supplies, cathodic protection of oil pipelines, optical fiber communication pumping stations, seawater desalination systems, road signs in towns, and highways Highway road signs etc. Around the turn of the century, photovoltaic power generation in advanced countries such as Europe and the United States was integrated into the urban power system and the power supply system of natural villages in remote areas was included in the development direction. The combination of solar cells and building systems has formed an industrialization trend.
Application areas:
1. User solar power: (1) Small power supplies ranging from 10-100W, used for military and civilian life in remote areas without electricity, such as plateaus, islands, pastoral areas, border posts, etc., such as lighting, TV, radio cassette recorders, etc.; (2) 3 -5KW home roof grid-connected power generation system; (3) Photovoltaic water pump: solve the problem of drinking and irrigation in deep water wells in areas without electricity.
2. Traffic fields such as navigation lights, traffic/railway signal lights, traffic warning/sign lights, Yuxiang street lights, high-altitude obstruction lights, highway/railway wireless telephone booths, power supply for unattended road squads, etc.
3. Communication/communication field: solar unattended microwave relay station, fiber optic cable maintenance station, broadcasting/communication/paging power system; rural carrier telephone photovoltaic system, small communication machine, soldier GPS power supply, etc.
4. Petroleum, marine and meteorological fields: cathodic protection solar power systems for oil pipelines and reservoir gates, life and emergency power supplies for oil rigs, marine testing equipment, meteorological/hydrological observation equipment, etc.
5. Home lamp power supply: such as courtyard system, street lamp, portable lamp, climbing lamp, fishing lamp, black light lamp, rubber tapping lamp, energy-saving lamp, etc.
6. Photovoltaic power stations: 10KW-50MW independent photovoltaic power stations, wind-solar (diesel) complementary power stations, charging stations of various large parking plants, etc.
7. The combination of solar power generation and building materials in solar buildings will enable future large-scale buildings to achieve power self-sufficiency, which is a major development direction in the future.
8. Other fields include: (1) Supporting automobiles: solar cars/electric cars, battery charging equipment, car air conditioners, ventilators, cold drink boxes, etc.; (2) Solar hydrogen production and fuel cell regenerative power generation systems; (3) Sea water Desalination of equipment power supply; (4) Satellites, spacecraft, space solar power stations, etc.
related policy:
Notice of the National Development and Reform Commission on the Price Policy of Photovoltaic Power Generation Projects in 2018 (Fagai Price Regulations (2017) No. 2196
The Development and Reform Commissions, Price Bureaus, Energy Bureaus, Poverty Alleviation Offices of all provinces, autonomous regions, and municipalities directly under the Central Government, State Grid Corporation of China, China Southern Power Grid Corporation, and Inner Mongolia Electric Power Corporation:
In order to implement the requirements of the “Energy Development Strategic Action Plan (2014-2020)” of the General Office of the State Council on the gradual decline of new energy benchmark on-grid tariffs, rationally guide new energy investment, and promote the healthy and orderly development of the photovoltaic power generation industry, it was decided to adjust the 2018 photovoltaic power generation Benchmarking on-grid tariff policy. With business from the National Energy Administration, the relevant matters are hereby notified as follows:
1. In accordance with the current technological progress and cost reduction of the photovoltaic industry, reduce the benchmark on-grid power prices for photovoltaic power stations that will be put into operation after January 1, 2018. The benchmark on-grid tariffs for Type I, Type II, and Type III resource areas will be adjusted to 0.55 per kWh. Yuan, 0.65 yuan, 0.75 yuan (tax included). Starting from 2019, all photovoltaic power generation projects included in the annual scale management of fiscal subsidies will implement the corresponding benchmark electricity price according to the time of operation.
2. For distributed photovoltaic power generation projects that are put into operation after January 1, 2018 and adopt the mode of “self-generated and self-used, remaining online” mode, the subsidy standard for total electricity per kilowatt-hour will be reduced by 0.05 yuan, that is, the subsidy standard will be adjusted to 0.37 yuan per kilowatt hour (Including tax). Distributed photovoltaic power generation projects that adopt the “full online” mode are implemented at the price of photovoltaic power stations in the resource area. Distributed photovoltaic power generation projects are exempt from various government funds and surcharges collected with electricity prices, system reserve capacity fees and other related grid-connected service fees.
3. The benchmark electricity price of village-level photovoltaic poverty alleviation power stations (0.5 MW and below) and the subsidy standard for household distributed photovoltaic poverty alleviation projects remain unchanged.
4. All new energy power generation companies and power grid companies must truthfully and completely record and save relevant power generation project online transaction power, price and subsidy amount and other information, accept supervision and inspection by relevant departments, and submit relevant data to the National Renewable Energy Information Management Center. The price authorities at all levels should strengthen the supervision of the implementation of new energy on-grid tariffs and the settlement of additional tariff subsidies, and urge the implementation of relevant on-grid tariff policies.
5. Encourage local governments to carry out price reforms for nearby consumption of photovoltaic power generation and pilot market-based bidding pricing in accordance with relevant national regulations, and gradually improve the mechanism for discovering prices through the market.

Wind-solar hybrid Solar Street Light system can be applied to road lighting, landscape lighting, traffic monitoring, communication base stations, school science popularization, large-scale advertising, home power supply, etc., as well as seawater desalination, urban landscape, science education, microwave communication, military camp posts, islands and mountains. , Gobi grassland, forest fire prevention, air defense warning, remote rural areas and other geographic areas. Strive to provide users with an environmentally friendly, convenient and safe experience.
system introduction:
1. Low wind speed start-up, low wind speed power generation, corrosion resistance and typhoon resistance of wind turbines:
As a street lamp application type wind generator, it is not only necessary to ensure safety, aesthetics and practicability, the wind generator can start to rotate at a wind speed of 2.0 m/s, and start charging at a wind speed of 2.5 m/s. In addition, when applied in coastal areas, it can withstand up to 14 strong typhoons, so it must have a mechanical brake + electromagnetic brake dual-safety braking system. In order to prevent the corrosion of the air in coastal areas, the various parts of the wind turbine must be made of anti-corrosion materials.
2. Intelligent control of the control system (light control, time control, overcharge, overdischarge, overload, undervoltage, protection, etc.):
As a street lamp control system, it not only needs to realize light effect control but also needs time control, so as to achieve the purpose of intelligent automatic control. During the charge and discharge period, it is necessary not only to prevent excessive charging and discharging, but also to realize functions such as excessive discharging. In addition, a low-voltage boost charging system at the core of the control system, when the electric voltage generated by wind power generation and solar power generation is less than 24V and greater than 15V, boost this part of the electrical energy to more than 24V, so that it can be processed. Take advantage of.
3. The bearing, anti-typhoon and shape design of the supporting system:
Ordinary street lights have no load-bearing requirements on the top of the pole, but as a wind-solar complementary street lamp, not only the weight of the 50kg wind turbine and the weight of the solar battery pack, but also the need for deflection resistance in the event of a typhoon. The fan is in strong wind. The process of low-speed rotation is an overall force-bearing surface. Therefore, considering the above factors, the strength and cross-sectional shape of the lamp pole must consider the above safety factors.
4. The selection of the instantaneous voltage and charging and discharging capacity of the energy storage system:
The energy storage batteries used in wind-solar hybrid solar street lights need to be continuously charged and discharged. Therefore, when choosing the battery, the main choice is to choose a floating-point voltage with a low instantaneous start voltage and a matching load power that can be repeatedly charged and discharged. 20-28V maintenance-free gel storage battery.
5. Solar power matching and conversion rate matching selection:
The photovoltaic modules used in wind-solar complementary street lamps are limited by the conditions of the application of light resources, and economic factors should be considered in the selection and ratio of power. No matter the solar cell modules made of monocrystalline silicon, polycrystalline silicon or amorphous silicon, they are meeting their requirements. The conversion rate is between 15% and 17% according to local conditions. When choosing installation, it is necessary to set different sun inclination angles according to the latitude of the installation site.
6. Integration and matching of low-voltage lighting fixtures:
The lighting fixtures of wind-solar complementary street lamps mainly choose low-voltage 24V lamps, such as energy-saving lamps, induction lamps, LED Lamps, metal halide lamps, etc. The brightness of different combinations of these lamps can reach the effect of ordinary high-voltage lamps. A series of parameters such as illuminance and height need to meet the standards of street lamps. The power of the lamps must not only match the power generation of wind power equipment and solar power equipment, but also match the wind and solar resources of the place where they are used. And there is no danger of electric shock.
7. Integration of the above six major systems (reliability, matching, aesthetics, economy):
The integration of the above six major parts of “wind turbines, control systems, support systems, energy storage systems, solar power generation systems, and lighting systems” is not only the principle of l+1=2, but ultimately needs to reach 1+1= l requirements, any part of the mismatch will affect the change of the entire system. And because of the different conditions in different regions, different wind-solar complementary system technologies are needed to adapt to regional changes, so as to achieve the most economical and most suitable system for users. The safety and reliability of the whole system is the first; the practicability is the second; the perfection of each component and the overall design is the third; the economy is the fourth. The integration of the six systems is ultimately used as a street lamp, and meeting the needs of users in different regions is the ultimate goal.
Functional characteristics of wind and solar hybrid solar street lights
1. Wind and wind integration, strong complementarity, high stability, solar Led Street Light
2. Wide range of application, strong adaptability and strong practicability
3. One-time investment, continuous output, long service life
4. No pollution to the environment, absolutely green and environmentally friendly
5. Stable performance and low failure rate
◆Energy saving: convert wind energy and solar energy into electric energy, use natural energy, which is inexhaustible and inexhaustible;
◆Environmental protection: no pollution, no noise, no radiation
◆Safety: 12v voltage, no accidents such as electric shock, fire, etc.
◆Convenience: Simple installation, no need to wire or “break the belly” construction, no power outages, power curtailment concerns
◆Long life: independent intellectual property rights, high technology content, intelligent control system, stable and reliable performance, and a life span of 15-20 years.
◆High quality: green energy and green lighting, improve the grade of users and places of use, and have strong iconicity
◆Low investment: one-time investment, unlimited output, no electricity, long-term use, zero maintenance
◆Strong adaptability and wide range of adaptation: Wind-solar complementation overcomes the limitation of environment and load, and the application range is very wide.
Wind-solar complementary solar street light application field
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Seawater desalination, urban landscape, popular science education, microwave communications, military camp posts, islands and mountains, Gobi grasslands, forest fire prevention, air defense warnings, remote rural areas
Current application areas of wind-solar complementary new energy products:
Road lighting, landscape lighting, traffic monitoring, communication base stations, school science popularization, large-scale advertising, home power supply
Domestic status of wind and solar hybrid solar street lights
Ordinary street lights not only need to ditch wiring and pay for electricity, but also to prevent the theft of cables. Electricity needs to consume one-time energy. If it involves a power outage, the entire area is out of power. Not only is electricity polluting equipment, but also high electricity and maintenance costs are required.
Wind-solar hybrid solar street lights not only do not need to consume one-time energy, they can generate electricity for their own use, not only can prevent theft, but also use renewable wind and solar energy to meet the lighting requirements, which means that the one-time investment is slightly higher. But it can be done once and for all without paying electricity bills, which is both beautiful and can open up new horizons for energy saving and emission reduction.
Wind-solar hybrid solar street lights are advocated by the country
1. To cater to the country’s policy of vigorously advocating and encouraging the use of new energy, to open up a new world of “energy saving, consumption reduction, and emission reduction”, and the government vigorously advocates “green energy, green lighting” to establish a landmark and intuitive scene.
2. It is in line with the urban development to build the four major environmental protection infrastructure constructions of “blue sky, clear water, green and clean”, which can also reduce the energy consumption of local GDP per capita, and add bright spots to the establishment of a model city of “ecological civilization” and “circular economy”. It can also enhance the image and taste of green and environmentally friendly new city construction.
3. It can enhance the citizens’ awareness of the application of high-tech and new energy products, and it can also increase the citizens’ awareness of the use of new energy.
4. Intuitive affirmation for the local government’s work on “energy saving, emission reduction, green lighting, circular economy, ecological civilization, popular science education, and publicity”.
5. Make corresponding contributions to the promotion of regional economy and the development of new energy industries; at the same time, it also opens up a new way for adjusting the economic and industrial structure.
Wind-solar hybrid solar street light is basically equipped with wind-solar hybrid street light system
Light pole height: 7-12 meters
Light pole material: high quality Q235 steel structure standard light pole (hot-dip galvanized white + sprayed plastic)
Solar photovoltaic modules: 75W-300W
Wind turbine: 300W-500W
Light source: LED lamp/DC energy-saving lamp/LVD induction lamp
Battery: Maintenance-free lead-acid battery/buried gel battery 100AH-200AH
Control system: intelligent boost type, microcomputer intelligent control, anti-overcharge, over-discharge, moisture-proof, output short-circuit protection and light control + time control to automatically turn on and off the lights.
Working time: 6-12 hours/day, continuous work for 3-7 days in rainy and cloudy days
Working temperature: -20℃-45℃
Wind-solar complementary solar street light design attention
1. It can be widely used for lighting in roads, courtyards, parks, tourist attractions, parking lots, factories, squares, schools, development zones, industrial parks and other places.
2. It can be customized according to customer requirements, including the light source model and power size, the number of lighting hours per day, the number of sustainable lighting days in rainy and rainy days, and the style and color of the lamps.
3. Due to the regional differences in solar and wind energy resources, the specific configuration of the wind-solar hybrid street lighting system is designed according to user needs and solar radiation at the installation site, annual average wind speed, road width and other factors.
Anti-theft performance of wind and solar hybrid solar street lights
1. Anti-theft of the controller:
The controller is placed inside the light pole close to the ground, and there is a special door lock outside, which has a good anti-theft effect.
2. Anti-theft of maintenance-free battery:
The battery is placed in the battery cellar, covered with an anti-theft cage, and covered with an iron plate. This system is a patented product. In addition, there is a PE tube (inner diameter of 32mm) connecting the lamp pole and the battery cellar in the battery cellar. It has a good protective effect on battery cables, etc., and its anti-theft effect is ideal.
Advantages of wind and solar hybrid solar street lights
Wind-solar hybrid street lights use high-performance large-capacity maintenance-free lead-acid batteries to provide sufficient power for wind-solar hybrid street lights, ensure the lighting time of LED wind-solar hybrid street light sources in rainy days, and greatly improve the stability of the system. The main advantages are listed below:
Energy-saving, emission-reduction, and environmental protection; no large amount of electricity expenses in the later period; resource-saving and environment-friendly society is becoming the general trend. Compared with traditional street lamps, wind-solar hybrid street lamps use renewable solar and wind energy in nature as energy sources, do not consume any non-renewable energy, and do not emit polluting gases into the atmosphere, resulting in reduced pollution emissions to zero. In the long run, the protection of the environment is self-evident, and at the same time, the cost of a large amount of electricity expenses in the later period is eliminated.
The cable laying project is exempted, and there is no need to construct a large number of power supply facilities; the operation procedures of the mains lighting project are complicated, and the basic works such as cable trench excavation, laying concealed pipes, pipe threading, and backfilling require a lot of labor; at the same time, transformers, power distribution cabinets, and Large quantities of electrical equipment such as electrical panels also consume a lot of financial resources. Wind-solar hybrid street lamps do not. Each street lamp is a separate individual, no need to lay cables or large quantities of electrical equipment, which saves both manpower and money.
Individual damage does not affect the overall situation, and is not affected by large-scale power outages; because conventional street lights are connected by cables, it is likely to affect the entire power supply system due to individual problems; this situation will not occur with wind-solar hybrid lights. Distributed independent power generation system, individual damage will not affect the normal operation of other street lights, even in the event of a large-scale blackout, it will not affect the lighting, and uncontrollable losses are therefore greatly reduced.
Save a lot of cable costs, and avoid the loss of cable theft; installing street lights in remote areas where the power grid is not widely available, the cost of wire installation is high, and there will be serious theft. Once stolen, the entire power output will be affected and the loss will be huge. The use of wind-solar complementary street lamps will not have this concern. Each street lamp is independent, eliminating the need for cable connections. Even if theft occurs, it will not affect the normal operation of other street lamps and minimize the loss.
Intelligent control, free of manual operation, simple construction and convenient maintenance; wind and solar hybrid street lights are controlled by intelligent controllers, which can be divided into two automatic control methods: time control and light control, which are both safe and economical; independent and integrated power supply system , It is not interfered by large-area circuit construction, the process is simple, the construction period is short, and the maintenance is more convenient.
City lighting: As an emerging energy system, it has played a role in lighting while saving costs and improving system stability. Today, when traditional energy occupies most of the market, new energy has undoubtedly become a highlight of cities and communities.
Improve people’s awareness of energy conservation; the lack of traditional energy sources and environmental pollution have reached the point where it must be resolved. The global air pollution is quite serious, and the use of new energy can effectively raise people’s awareness of energy conservation and make our lives more quality and energy-saving.

Wind-solar hybrid street lights are smart street lights that use wind and solar energy for power supply. At the same time, they also have the advantages of both wind power and solar power, providing a stable power supply for urban street lights.

Electric towers are trapezoidal or triangular tower-shaped buildings, usually 25-40 meters in height, and are of steel frame structure. Electric towers are mostly built near power plants and distribution stations in the wild. They are an important facility for the power sector. They can overhead power lines and play a role of protection and support. The design, manufacture, installation, maintenance and quality inspection of power towers are important guarantees for the operation and development of modern power systems.
1. The high-voltage line tower is divided into a linear tower and a tensile tower. The corner tower is a kind of tensile tower, and the cat head tower is a kind of linear tower;
2. It looks like a straight tower, the insulator is a cathead tower suspended vertically, and the insulator is horizontal, which is used to prevent the link tower from falling down and the line turning, etc.;
3. The voltage depends on the number of insulators, 1-2 pieces: 10KV, 3-5 pieces, 35KV, 7 pieces 110KV, 14-16 pieces 220KV, 28 pieces 500KV. ;
Electric tower fence
In order to prevent the theft of wires or the climbing of extreme people, protect the surroundings of the electrical tower. Provide effective preventive measures, hereby increase the fence (guardrail). Effectively eliminate potential safety hazards.
Purse net specifications: 60*60*3.0; 50*50*3.0; 60*60*5.0;
Basic layer: 600*600*1000
How many power poles do you know?


There are only a few common poles and towers, and there are different classifications.
First, let’s talk about the font tower:
1. Dry font tower
The “gan” character tower is named after the Chinese character “gan”. It is a common tower type on both DC and AC transmission lines. Mostly linear towers are also common tensile & corner towers for ≥220 kV transmission lines.
2. The upper font tower
Only one overhead ground wire is erected on the tower, and the conductor is arranged in an asymmetrical triangle, and its shape is “upper”. It is suitable for lines with small conductor cross-sections in light thunder and light ice areas, and is often used for power lines with voltage levels of 110 kV and below.
3. Gate-shaped tower
As the name suggests, the pole tower that uses two columns to support the conductors and overhead ground wires is like a big “door”.
This kind of tower is more applicable, and it is more economical when it has a cable. It is often used in the situation where double overhead ground wires and conductors are arranged horizontally. It is generally used for lines ≥220 kV. The cable can be used to improve the tower`s performance. Stability, the column sometimes has a certain slope.
4. V-shaped tower
The guyed V-shaped tower, a special case of the gate-shaped tower, is shaped like a “V” and comes with “big V certification”, so it is easy to identify in the wilderness.
It is easy to construct and consumes less steel than other guyed gate towers, but it occupies a large area and is restricted to use in river networks and large-scale mechanical farming areas. It is commonly used in 500 kV lines, and it is also used in a small amount in 220 kV.
5. T-shaped tower
The tower is in the shape of a “T”, with two transmission lines hanging underneath, with one positive pole and one negative pole. It is the main tower for direct current transmission. Look carefully at the tower, there are two small “corners” on the tower, and there is also a ground wire on each side. “Lightning line”.
After talking about the font tower, let’s talk about the pictogram tower:
1. Wine glass tower
Two overhead ground wires are erected on the tower, the wires are arranged on a horizontal plane, and the tower is shaped like a wine glass.
Seeing this, some friends may not feel like it.
In fact, the correct way of abstraction looks like this:
It is usually a common tower type for 220 kV and above power transmission lines. It has good construction and operation experience, and is especially suitable for heavy ice or mine areas.
2. Cat head tower
Cathead tower is a kind of high-voltage power transmission linear tower. Two overhead ground wires are erected on the tower, the conductors are arranged in an isosceles triangle, and the tower shape is cathead-shaped.
In other words, this product can be regarded as realistic in the abstract school. Please forgive me for my bohemian style.
Another high-definition close-up:
It is also a common tower type for transmission lines with voltage levels of 110 kV and above. Its advantage is that it can effectively save line corridors.
3. Shofar Tower
The shofar tower is a type of transmission tower, named after its image resembling a shofar. Generally used for tensile towers.
As for the horns, see the picture:
4. Drum Tower
Drum tower is a common tower type for double-circuit transmission lines. Three wires on the left and right sides of the tower form a three-phase AC line.
The three wires of a circuit are all arranged in the top, middle and bottom, among which the middle wire protrudes outward from the top and bottom two wires, so that the outline of the six wires is similar to the protruding drum body, hence the name drum tower.
To put it simply, the outline of the wire suspension point is arranged in a drum shape and named after it.
Don`t doubt, it`s better to look at it this way~
The drum-shaped tower is suitable for areas with heavy icing, which can avoid the occurrence of flashover accidents when the wires are deicing and jumping.

The high pole lamp generally refers to a new type of lighting device composed of a steel cone lamp pole above 15 meters and a high-power combined lamp structure. It is composed of lamp holder, internal lamp electrical, pole body and basic parts. The shape of the lamp holder can be determined according to user requirements, surrounding environment, and lighting needs. The internal lamps are mostly composed of floodlights and floodlights. The light source uses NG400 high-pressure sodium lamps with a lighting radius of 60 meters. The rod body is generally a pyramid-shaped single body structure, which is rolled out of steel plate, with a height of 15-40 meters, and most of it is composed of two to three sections.
Configuration:
1. The light pole is an octagonal, twelve-sided, and eighteen-sided pyramidal pole, which is cut, bent, and automatically welded to form high-strength high-quality steel plates. The general height is 25, 30, 35, 40 and other specifications, with the largest design The wind resistance can reach 60 meters per second, and each specification is composed of 3 to 4 plug-in sections. Equipped with flanged steel chassis, with a diameter of 1 meter to 1.2 meters and a thickness of 30 mm to 40 m m.
2. The functionality is mainly frame structure, and some are mainly decorated with steel pipes and steel pipes. Lamp poles and lamp panels are treated with hot-dip galvanizing.
3. The electric lifting system consists of an electric motor, a winch, three groups of hot-dip galvanized steel wire ropes and cables. The lamp pole is installed in the body, and the lifting speed is 3 to 5 meters per minute.
4. The guiding and unloading system is composed of guiding wheels and guiding arms to ensure that the lamp panel does not move laterally during the lifting process, and to ensure that the lamp panel can be automatically detached and locked by the hook when the lamp panel is raised in place.
5. The lighting electrical system is equipped with 6-2 4 4 0 0 w-1 0 0 0 w metal halide (white light), Flood Light, flood light lamps, and the computer time controller can automatically control the switch light time and partial or full lighting.
6. Lightning protection system: a 1.5-meter-long lightning rod is installed on the top of the lamp, and a 1-meter-long grounding wire is installed on the underground foundation and welded to the underground bolt.
High pole lamp use place
The scope of use of high pole lights: city squares, stations, docks, freight yards, highways, stadiums, overpasses.
High pole lamp classification
Generally can be divided into lifting type and non-lifting type. The height of the lifting main pole is generally more than 18 meters, and the electric lifting operation is convenient. After the lamp panel is raised to the working position, it can automatically take off the panel, hang the ditch, and unload the wire rope.
The lift-type high-pole lamp is equipped with manual and electric lift control modes, so that the lamp panel can be safely and reliably lowered to 2.5 meters above the ground, which is convenient for maintenance work. The length of the lead wire of the manual remote control device is 10 meters, and the operator controls the lifting of the lamp panel at a distance of 5 meters, which can ensure the personal safety of the operator. The lift-type high pole lamp is also equipped with a spare cable. When the lamp panel is lowered to the lowest position, one end of the cable is inserted into the socket of the electrical control system, and the other end is inserted into the junction box on the lamp panel, so that the lamp panel can be directly supplied with power , Overhaul lamps.
The sealing grade of all lamps of the lift-type high pole lamp is IP65 international standard to prevent the intrusion of dust and rainwater and ensure the service life of the bulb. The materials of the lamps are generally made of aluminum alloy plates with good corrosion resistance and stainless steel.
The high-pole lights we usually talk about are actually very different according to their use. The classification and name of the high-pole lights vary according to different occasions. For example, those used in wharves are called high-pole lights on piers, and those used in squares are called high-pole lights in squares. Named there are port high-pole lights, airport high-pole lights, explosion-proof high-pole lights, stainless steel high-pole lights and so on. It is generally considered that the street light poles that exceed 15 meters are called high pole lights, ranging from 15 to 40 meters. The commonly used ones are 15 meters, 18 meters, 20 meters, 25 meters, and 30 meters. The five specifications are the most common. Others are generally the specific height required by the customer to design, this is what we often call the high pole lamp divided by height.
High pole lamp installation
High pole lamp preparation
1. Carefully count all components according to the loading and packing list.
2. Check whether the components are damaged, bent, twisted, and whether the zinc layer is damaged.
3. The signs on each section of the rod indicate the type, order number, and number of sections of the rod. The weight of the shaft is marked with a colored pen on the inside of the shaft. Check whether the delivery is correct and whether the crane lifting capacity is sufficient.
4. According to the maximum and minimum socket length provided on the drawing, make a mark on the rod for use when socketing.
High pole lamp assembly
1. Each splicing point provides a socket length, but due to the influence of manufacturing, installation errors and physical factors, there are changes in socket length, so the maximum socket length and the minimum socket length are provided.
2. In order to facilitate installation, it may be necessary to lubricate the mating surface. Be careful not to use lubricating oil to prevent leakage and contamination of the rod body, and soapy water can be used to lubricate the inner and outer surfaces of the sleeve.
3. When socketing, apply the necessary force at both ends to obtain a tight socket.
Lifting principle of high pole lamp
In the rectangular cavity at the bottom of the elevating high pole lamp, in addition to the electrical control system, a motor and other elevating systems are also installed. The electrical control system is installed inside the light pole to avoid the failure of the lifting movement caused by the harsh outdoor environment. There are various circuit overload protection devices in the electrical control system.
The conductors of the circuits in the system are widely plated with copper-based silver to ensure good electrical connections. The lifting system of the lifting high pole lamp drives the lifting of the lamp panel through components such as electric motor, (electromagnetic brake type) worm gear reducer, safety coupling, main wire rope, auxiliary wire rope, rope splitter and movable pulley group. The worm gear reducer has strong self-locking ability, compact transmission, and large transmission ratio. In order to reduce the gear ratio of worm gear and worm, and reduce the rising torque, a set of movable pulleys is specially added to make the lifting speed of the lamp panel less than 0.2 m/s .
The main steel wire rope is connected with the lamp panel auxiliary steel wire rope through the rope splitter, which can avoid the entanglement of the auxiliary steel wire due to the stretching of the main steel wire. The main and auxiliary steel wire ropes are made of high-strength, corrosion-resistant 6*19 non-rotating galvanized steel wire rope. The lifting pulleys are all made of A3 steel brackets, stainless steel shafts, and copper pulleys that have been hot-dip galvanized to ensure flexible operation without corrosion under normal atmospheric conditions.
Various fasteners, washers, clamp rings and other parts are also made of hot-dip galvanized parts or stainless steel. The lamp panel is equipped with 6 sets of guide pulleys and more than three sets of braking devices. The guide wheels distributed at 120 degrees roll along the surface of the lamp pole during the raising or lowering process of the lamp panel to ensure that the lamp panel does not swing. The surface of the working part where the guide wheel of the lamp panel is in contact with the surface of the lamp pole adopts the rubber hot pressing process. In order to fully ensure that the lamp panel stops automatically when it reaches the limit position, reliable limit switches are installed for the rising and falling movements of the lamp panel, and over-travel protection is provided.
The lifting of the lamp panel of the high pole lamp is realized by changing the rotation direction of the motor. For security and anti-theft, the rectangular cavity is equipped with a sealed door, and a special door lock is installed on the sealed door.
Important safety knowledge of high pole lights:
For users who have not been exposed to high-pole light products, check the production quality of a high-pole light and whether the installation process is reasonable. You can judge from the following points.
Since the height of the high pole lights is between 18 meters and 35 meters, the lightning protection measures must be done well. Many of the high pole lights that we often see are only installed and used after hot-dip galvanizing. The main body of the light pole does not have a problem with electricity, but in recent years, considering the aesthetics of high-pole lights, a spraying process has been added to the surface of many sections, and silver and white are more common. At this time, you need to pay attention, and some High-pole lamp manufacturers have overlooked a problem, that is, the plastic powder itself is insulated. If the plastic powder is sprayed on the lightning rod, the conductive effect of the lightning rod will disappear. If such a problem is found during installation, you must inform The installer should completely scrape the plastic powder from the top of the lightning rod at least 20 cm from top to bottom, and then use the lightning rod to fix the top wire at the junction of the lightning rod and the rain cap to push out the plastic powder of the lightning rod, so that it can conduct normally. .
When installing the lamp, if it is an LED lamp, then the driving power behind the lamp is divided into neutral, live, and ground. When wiring, the ground must be connected to the pre-arranged main cable. If the ground of the driving power is If the cable is not connected, it is likely to be burnt during a thunderstorm. Then there is the processing of the terminal. The serial wire joints must be tinned, then wrapped with insulating tape, and then covered with flame-retardant wax tubes. The purpose of this is to avoid excessive aging of the wiring under high temperature and rain exposure. , Causing a short circuit.
Lamps, especially high-pressure sodium lamps, must pay special attention when installing. The fixing nut connecting the lifting beam must be tightened with a wrench. It is often seen that the lamp head of the high pole lamp on the square or roadside is drooping down, that is, it is not fixed properly. Caused by screws. In severe cases, it will cause personal injury if it falls.
High pole lights are generally composed of two or three sections of steel pipes. Pay special attention to the installation. When every two sections are inserted into each other, the insertion depth shall not be less than 60 cm. If the insertion is not in place, there is no need to worry about it. Falling down on its own, but it will affect the overall verticality of the high-pole lamp, and it will shake left and right. If it is plugged into place, there will be no problems.
The top part of the top section of the high pole lamp, that is, the position of the fixing hook, is connected by three M14 or M16 screws. When installing, it should be noted that these three screws must be stainless steel screws. Ignore this problem and use ordinary iron galvanized screws. After a long time, the iron screws will become severely rusted, making it difficult to decouple or unable to decouple. After the lamp has a problem, the lamp panel cannot be raised and lowered normally.

High-power Led Street Light, as the name implies, is a street light with a single power greater than 1 watt and a new type of LED semiconductor light source. The current standard for LED Street Lights is generally 0.48, which is an average illuminance of uniformity of road surface illuminance, which is greater than the national traditional standard of 0.42. The spot ratio is 1:2, which is in line with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX. The current market street lamp lens material is an improved optical material, with a transmittance of ≥93% , Temperature resistance -38-+90 degrees, anti-UV ultraviolet rays, and no change in yellowing rate for 30,000 hours. It has very good application prospects in new urban lighting. The depth of dimming, and the color and other characteristics will not Changes due to dimming.
Applicable places:
Urban roads, sidewalks, squares, schools, parks, courtyards, residential areas, factories and other places that require outdoor lighting.
The key to high-power LED street lights is good heat dissipation and stable driving power (constant current, constant voltage)
Solar LED street lights, as the name suggests, use solar silicon panels as the power supply, LED street lights
The standard of LED street light is generally:
1. The general conversion rate of solar modules is 15%, (monocrystalline silicon solar modules)
2. The average illuminance of uniformity of road surface illuminance is 0.48, which is greater than the national traditional street lamp standard of 0.42. The spot ratio is 1:2, which is in line with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX.
3. The street lamp lens material in the market is an improved optical material, with a transmittance of ≥93% and a temperature resistance of -38 to +90 degrees.
The average illuminance of uniformity of road surface illuminance is 0.48, which is greater than the national traditional street lamp standard of 0.42. The spot ratio is 1:2, which is in line with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX.
advantage:
1. The characteristics of the LED street lamp itself-the one-way light, no light diffusion, to ensure the light efficiency;
2. The LED street lamp has a unique secondary optical design, which irradiates the light of the LED street lamp to the area that needs to be illuminated, and further improves the light efficiency to achieve the purpose of energy saving;
3. The efficiency of the LED light source has reached 100lm/W, and there is still a lot of room for development, with a theoretical value of 250lm/W. The luminous efficiency of high-pressure sodium lamps increases with the increase of power. Therefore, the overall luminous efficiency of Led Street Lamps is stronger than that of high-pressure sodium lamps;
4. The light color rendering of LED street lamps is much higher than that of high-pressure sodium lamps. The color rendering index of high-pressure sodium lamps is only about 23, while the color rendering index of LED street lamps is above 75. From the perspective of visual psychology, the same brightness can be achieved. The average illuminance of LED street lamps can be Reduced by more than 20% than high-pressure sodium lamps, (refer to the British principle of lighting standards);
5. The light decay of LED street lights is small, less than 3% in a year, and it can still meet the road use illuminance requirements after 10 years of use, while the high-pressure sodium lamp has a large decay, which has dropped by more than 30% in about a year. Therefore, LED street lights are in The power design can be lower than that of the high-pressure sodium lamp;
6. The LED street lamp has an automatic control energy-saving device, which can achieve the greatest possible reduction in power and energy saving under the condition of meeting the lighting requirements at different times;
7. LED is a low-voltage device. The voltage to drive a single LED is a safe voltage. The power of a single LED in the series is 1 watt, so it is a safer power supply than the use of high-voltage power supplies. It is especially suitable for public places (such as street lights). Lighting, factory and mine lighting, automotive lighting, civil lighting, etc.);
8. Each unit LED chip has only a small volume, so it can be prepared into various shapes of devices, and is suitable for variable environments;
9. Long lifespan: It can be used for more than 50,000 hours and provides three-year quality assurance;
10. High light efficiency: Using chips ≥100LM, it can save energy by more than 75% compared to traditional high-pressure sodium lamps;
11. Easy installation: no need to add buried cables, no rectifiers, etc., directly install the lamp head of the street lamp on the lamp pole or nest the light source into the original lamp shell;
12. Excellent heat dissipation control: the temperature in summer is controlled at about 45 degrees, and passive heat dissipation is adopted;
13. Reliable quality: All circuit power supplies use high-quality components, and each LED has a separate over-current protection, so there is no need to worry about damage;
14. Uniform light color: No lens is added, and the uniform light color is not sacrificed to increase the brightness, so as to ensure the uniform light color without aperture;
Based on the above principles, the energy-saving effect of high-power LED street lamps is significant, and it can save more than 60% of electricity instead of high-pressure sodium lamps;
Low maintenance cost: Compared with traditional street lamps, the maintenance cost of LED street lamps is extremely low. After comparison, all input costs can be recovered in less than 2 years.
High-power LED street lights street lights:
High-power LED street lamp technical indicators air convection heat dissipation type high-power LED street lamp lamps.
Air convection heat dissipation type high-power LED street light fixtures. Its purpose is to solve the heat dissipation problem of high-power LED Lamps and propose a high-power LED street lamp lamp with air convection heat dissipation, which includes a lamp head assembly, a lamp heat sink assembly and a lamp tail assembly. The lamp heat sink assembly is an arc-chord cylindrical shell. , Open at both ends, the two sides of the arc cylindrical surface are vertical surfaces, and the vertical surface is also provided with array of through holes. In the inner cavity of the arc-chord cylindrical shell, there are 4-10 axially arranged and aligned with the arc cylindrical surface and the chord cylindrical surface. The two vertical sides of the vertical rib heat conduction plate and the vertical rib heat conduction plate and the arc-chord cylindrical shell are also provided with array through holes. The vertical rib heat conduction plate and the two vertical ribs on both sides of the arc-chord cylindrical shell are also provided with array through holes. 5-11 heat dissipation channels for hot air flow are formed in the lamp heat sink assembly. The utility model has the advantages that there are multiple heat dissipation channels through which hot air flows in the internal cavity of the heat dissipation body, and the vertical rib heat conduction plate also serves as a heat dissipation surface, the heat exchange surface is increased, and the heat discharge efficiency is high. Air convection heat dissipation type high-power LED street light
Shape structure design of high-power LED street lamp
The appearance design is novel, the structure is ingenious, and full of modern flavor, which is in line with the trend of the times. In terms of heat dissipation, we creatively adopted the air convection cavity aluminum radiator design. The upper and lower heat dissipation surfaces of the radiator are connected by eight vertical ribs. , Front and back pass
LED street light (air convection heat dissipation type) LED street light (air convection heat dissipation type)
At the same time, there are air convection holes on the left and right sides, which strengthen the air circulation inside the cavity and facilitate the discharge of heat, thereby effectively improving the heat conduction efficiency of the LED light source. The above unique heat dissipation design scheme ensures the safe working temperature of the high-power LED light source below 45°C.
High-power LED street light metal bolt type
Independent research and development and design of metal bolt type high-power LED light source. In order to improve the stability of the product, we use high-quality LED light-emitting chips imported from the United States. The LED light-emitting chips are directly encapsulated on the top of the nut of the metal bolt, and the LED metal bolt is directly screwed on the aluminum radiator when the product is assembled. Therefore, the LED and the radiator are effectively integrated, which changes the current situation of traditional high-power LED light sources using thermal silica to conduct heat, greatly improves the heat transfer efficiency between the LED and the aluminum radiator, and effectively guarantees The service life of the LED light source is greater than 60,000 hours. At the same time, high-quality Taiwanese phosphors are used to make a single LED brightness above 80 lumens; and there are a variety of color temperatures to choose from, which can meet the needs of different color temperatures in different occasions.
High-power LED street lamp secondary optical system
It adopts a unique secondary optical lens module and “belt-shaped spot” light output design. The length of the light spot is determined by the angle of the LED light, so as to reasonably control the light distribution, avoid light superimposition and waste, reduce light loss, and realize the connection of the strip light spots between the light poles, so that it meets the national standards. Various brightness indicators. While ensuring the ideal road surface illumination and uniformity, it eliminates LED glare and protects the LED light source.
The optimization of high-power LED street lamp drive circuit
DC 9V-30V or AC 84V-264V wide voltage input drive circuit design. The precise constant current output enables each high-power LED light source to work at a constant rated current, with low line loss and aging coefficient, electrical conversion efficiency ≥85%, and precise constant current output to ensure the service life of the LED light source.
Modular design of high-power LED street lights
The light source adopts a modular design scheme to achieve the best matching of ground illuminance and power. By increasing or reducing the number of light sources, different road width and illuminance requirements are met, achieving the goal of not only meeting the lighting requirements of the city without wasting electric energy.
LED lighting technology is becoming more and more mature, and the efficiency of high-power LED light source has reached 80lm/W or more, which makes it possible to transform urban street lighting energy-saving. LED street lamps, especially high-power LED street lamps, are impacting the traditional street lamp market at a rapid pace.
As the name implies, high-power LED street lights are street lights with a power greater than 30 watts and adopting a new type of LED semiconductor light source. The standard of LED street light is generally the average illuminance of uniformity of road surface illuminance (uniformity of road surface illuminance) 0.48. The spot ratio is 1:2, which is in line with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX. The street lamp lens material on the market is an improved optical material with a transmittance of ≥93%. Temperature resistance -38-+90 degrees, UV resistance, and no change in yellowing rate for 30,000 hours. Solar LED street lights refer to LED street lights that use solar silicon panels as the power supply.
The standard of LED street light is generally:
1. The conversion rate of light is 17%, (the solar energy per square meter is 1000W, and the actual utilization efficiency is 170W)
2. The street lamp lens material in the market is an improved optical material, with a transmittance of ≥93% and a temperature resistance of -38 to +90 degrees.
3. LED street lamp lens, mainly used for LED street lamp lens, the spot is rectangular, the material is PMMA optical material, the transmittance is ≥93%, the temperature resistance is -38-+90 degrees, and the anti-UV yellowing rate is 30,000 hours without Changes etc.,
4. The average illuminance of uniformity of road surface illuminance is 0.48. Spot ratio 1:2
5. Comply with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX.
6. It has very good application prospects in new urban lighting. Dimming depth, and the color and other characteristics will not change due to dimming.
7. Adaptation humidity: ≤95%
8. Quality assurance: 2 years
market expectation
Despite the rapid development of LED street lights, the standard of LED street lights is relatively lagging behind. Globally, there are not all LED street lamp standards, such as LED street lamp standards in Europe. In fact, the standards for LED street lights in different regions are not the same in terms of indicators. The LED street lights we make must meet the requirements of the sales area in terms of standards. Therefore, bidding for LED street light projects requires in-depth study of local LED street light standards. The only way is this Will have a place in the fierce market competition.
As LED high-power street lights are installed outdoors, they are often attacked by unexpected weather and have high requirements for stability and safety. Special attention should also be paid to the installation.
Installation method of high-power LED street light
1. When installing LED high-power street lights, it is recommended to use guide sleeves for positioning.
2. Be sure not to install LED high-power street lights when the pins are deformed.
3. When deciding to install in the hole, calculate the dimensions and tolerances of the hole spacing on the face and the circuit board to avoid excessive pressure on the bracket.
4. Before the soldering temperature returns to normal, the LED must be protected from any vibration or external force.
5. Pay attention to the arrangement of the outer wires of various devices to prevent incorrect polarity installation. The device should not be too close to the heating element, and the working conditions should not exceed its prescribed limits.
Precautions

When cleaning the colloid with chemicals, you must be especially careful, because some chemicals can damage the surface of the colloid and cause discoloration, such as trichloroethylene, acetone, etc. It can be wiped and dipped in ethanol for no more than 3 minutes at room temperature.

Design
The trail and courtyard lights are actually a combination of two types of lights. The courtyard lights pay attention to the landscape and the trail lights pay attention to the functionality. The two could have been separated to form their own systems, but after consideration, the two are still integrated. Garden lights for trails.
Landscape application
The following issues should be paid attention to in the design of trail garden lights:
1. The trail garden lights mostly exist in the form of diffused light. The difference between diffused light and direct light is that it will not produce too much shadow, making the color brighter and darker when it is softer. However, an important problem that needs to be solved in the form of diffused light trail garden lights is that the surface temperature of the luminous body is too high. Judging from the popular trail garden lights on the market, few products can solve this problem.
2. Calculation of elevation angle and shoulder distance. The calculation of the elevation angle and shoulder distance can achieve a good balance between the functional role and the landscape role. For example, if the elevation angle design takes into account the corresponding landscape design, then it can better reflect the role of the landscape, and it can also be used in the function. To meet people`s needs.
Low-position lamps (hole lawn lamp)
The first thing that low-level lamps need to pay attention to is the innovation of design concepts, followed by the humanization and diversity of functions. I saw a low-level lamp in Japan. This lamp not only plays the role of lighting and beautification, but also serves as a warning. , It tells passers-by that the front curve is large and there are many people coming and going. Please be careful of motorists and passers-by. In order to achieve the unity of diversified functions and landscape lighting for low-position lamps, it is necessary to introduce the idea of composite design, and achieve the coordination of functional lighting and landscape lighting as much as possible.
classification

There are many classifications of landscape lights, which can be roughly divided into street lights, foot lights, trail and garden lights, high pole lights, low (lawn) lamps, projection lamps (flooding, small projection lamps), street lamp pole decorative landscape lights, lights Sketch lights, downlights, wall lights, underwater lights, recessed lights, fiber optic lighting systems, solar lamps, etc.

Communication tower:
The communication tower is composed of steel components such as tower body, platform, lightning rod, climbing ladder, antenna support, etc., and is treated with hot-dip galvanizing anti-corrosion treatment. It is mainly used for the transmission and emission of microwave, ultrashort wave, and wireless network signals.
product description:
In order to ensure the normal operation of the wireless communication system, the communication antenna is generally placed at the highest point to increase the service radius to achieve the ideal communication effect. The communication antenna must have a communication tower to increase the height, so the communication tower plays an important role in the communication network system. The national standard communication tower series products produced by our company have been unanimously praised by the mobile, China Unicom, telecommunications, public security forces and other departments for many years. praise.
Technical requirements for communication tower (abbreviated as: communication tower):
The bands used in radio broadcasting, communication, navigation, etc. are long wave, medium wave, and short wave. The structure of radio tower masts of various bands can be divided into two major categories: supports and emitters in terms of their functions. The support is used to suspend the antenna wire net, and the emitter uses the mast structure itself as an antenna to emit radio waves. Ultrashort wave is widely used in professional communication fields such as public security, traffic police, fire protection, water conservancy, power supply, military and civil aviation dispatch and plays an important role. Such as: “350” trillion public security “110” command system; “350 trillion” traffic police road command and communication system; “350 trillion” public security fire command system; government water conservancy flood control and drought relief dispatch command system; electrical industry dispatch system; mobile and Unicom communication system It brings great convenience to people’s lives, so radio communication (communication) is inseparable from various industries in modern society.
Product function:
To ensure the normal operation of the radio communication system, the communication antenna must be placed at the highest point to increase the service radius and achieve the desired communication effect. The elevated antenna must be completed by the iron tower. Therefore, the steel structure tower plays an important role in the communication system.

product structure:
In the construction of modern communication and radio and television signal transmission tower projects, no matter whether the user chooses the ground plane or the roof tower, it will serve as a high communication antenna, increase the service radius of communication or TV transmission signals, and achieve the ideal professional communication effect. In addition, the roof It also has the dual functions of lightning protection and grounding, aviation warning and decoration of the office building. It adopts four-legged self-supporting structure, which conforms to steel structure design specifications. Anti-loss ability: Wind 12/Earthquake 8 Height: 60 meters or more; Weight: 10 tons or more Anti-corrosion treatment: hot-duty zinc; material origin: Baosteel/Shougang/Hanshan Iron and Steel/Tangshan Iron and Steel, etc.

What are the hazards to the LED display caused by poor heat dissipation in the hot summer?
The biggest problem currently encountered by LEDs is heat dissipation, and the same is true for LED displays. The power consumption of the LED display is very large, and a considerable part of the energy is wasted on heat. Fever can cause many problems. Why LED display can be widely used, my summary is as follows:
1. Scalability: The larger the LCD screen, the higher the investment in production line equipment. The increase in the size of the LED display is very easy, just like building blocks. The resolution is also convenient to realize according to user needs.
2. Full color: light bulbs, neon lights, etc. are all monochromatic, and LED realizes the combination of RGB three primary colors.
3. High reliability: LED is solid-state lighting with high reliability, unlike neon tubes, bulbs and the like that require vacuum tubes.
4. Long life: The theoretical life of the LED chip can reach 100,000 hours, and the actual life is more than 30,000 hours.
5. Environmentally friendly: LED itself is an energy-saving and pollution-free product.
The biggest problem currently encountered by LEDs is heat dissipation, and the same is true for LED displays. The power consumption of the LED display is very large, and a considerable part of the energy is wasted on heat. Fever can cause the following problems:
1. Wavelength drift: Wavelength drift will cause problems in color correction. The wavelength drift of LED is relatively large at low temperature and high temperature. According to experimental data, for every degree of temperature change, the wavelength changes by 0.2-0.3nm.
2. Output brightness reduction: 1% of output brightness changes caused by temperature change per degree Celsius, among which the red light is the most affected. From -40 degrees 180% brightness, to 120 degrees brightness is less than 50%, that is to say, the brightness of the red light is reduced by nearly two-thirds. Relatively speaking, the brightness of blue light and green light has less temperature influence, especially blue light. When the temperature rises, a problem arises. The brightness of LEDs of different colors is not the same.
3. Temperature rise leads to shortened LED life: According to the data of a laboratory in the United States, the junction temperature increased from 63C to 74C, and the LED life decreased from 36,000 hours to 16,000 hours.
4. Too many heat-dissipating components lead to higher system costs.
5. Waste energy and increase user costs.
So where does the heat come from? From the power supply to the LED lamp, to the LED driver, and then to the adjustable resistor, the heating part includes the LED lamp, the LED driver, and the LED connection line. Let’s take 5V power supply as an example:
Power supply voltage: 5V,;
LED: LED G/B Vfwd=3.2V, LED R Vfwd=2V
1. The luminous efficiency of LED is about 20%, and LED heating accounts for 50% of total heating
2, controllers and connecting wires account for about 5% of the total heat generation
3. Drive voltage drop: 1.8V(G/B) or 3V(R) voltage drop, the heating of the drive part accounts for more than 45% of the total heating.
The heating of the LED lamp needs to improve the luminous efficiency of the LED, the controller and the connecting wire have less heating, and there is not much room for improvement. There is a lot of room for improvement in the heat generation of the driving part, which is also the part we look forward to improving. Leading LED chip companies are stepping up production expansion, inventory rises and prices fall
How can the LED display save power?
LED display is an energy-saving and environmentally friendly product. The power per square meter is relatively low. The use rate of LED display in the market is getting higher and higher, and the area is getting bigger and bigger. The power consumption of LED display is also an issue that users are more and more concerned about. . How can the LED display save power?
As a new type of display technology, the display screen is known for its high brightness and high energy saving. It is displayed by small light-emitting diodes inside, so compared to other display products, it is more power-saving. But it’s only relative. If your display is large and colorful, its power consumption per square meter is 300-600W. The power consumption of displays using different technologies varies greatly. Common displays include CRT, LCD, and LED displays. Of these three types of displays, CRT consumes the most power, LCD is the second, and LED is the least. Taking a common ordinary LED display (referring to a liquid crystal display with LED lighting as a backlight), the general power consumption is about 25W.
If it is a monochromatic LED display, the power consumption per square meter is about 150-200W per hour, which is also related to your display method.
The maximum power consumption of the outdoor LED display (full-color) is about 800W/square, which means that when the outdoor LED display reaches the maximum power (peak) every moment, the power consumption per square hour It will be 0.8 kilowatt-hours of electricity. The maximum power of each board of Shanhong is 25w, 16 boards are counted as one square, and the power consumption is 150-200 W.
LED display power consumption calculation: Generally, the maximum power consumption is calculated first by the number of points. As an important part of the power supply system for the LED display, choosing a qualified and reliable power supply can significantly improve the energy-saving effect and service life of the LED display.
If the area of the LED display screen is relatively large, it is easy to use energy-saving design.
There are two main methods for energy-saving LED display:
1. Installing the screen is to install a multi-function card with a light sensor, so that the LED display can automatically adjust the brightness of the screen according to the outdoor light intensity to achieve energy-saving effects.
2. Energy-saving IC and low-voltage power supply are used in the screen design. According to the formula P=UI, because the screen LED display is driven by a constant current, that is, the current is constant, the voltage drop is reduced, and the power is reduced.
It is very important to choose a good LED display manufacturer. It is even more important to choose a professional salesperson in charge. It can help produce professional LED display system solutions, realize the screen functions realized by the customer`s line drafts, and meet the requirements of customers. At the same time, we can consider the problem from the perspective of the customer.
Outdoor LED screen allows advertising brand promotion to meet a better vision
As an enduring outdoor advertising, its unique advantages and strong brand effect are worthy of investment by many businesses.
Since entering the information age, outdoor LED displays have been favored by bustling commercial streets. Suddenly, the outdoor led display seems to have also emerged as a subversion of the traditional image of the urban landscape. With the continuous development of the urban construction process, outdoor led display screens are being used more and more as a new advertising carrier for media.
Outdoor led display screens can indeed bring a certain improvement to the image of the city, and the forms of advertising have become flexible and diverse. Outdoor LED displays in world-renowned cities such as Times Square in New York, USA and Ginza in Tokyo, Japan can be called city symbols. It can be seen from this that the development speed and urban status of outdoor led displays can be seen.
The rapid development of outdoor advertising LED screens has become the “new favorite”
The development of outdoor advertising led large screens has been around for more than ten years. As the effect of commercial agglomeration has increased year by year, their mission to show the image of the city has become more and more important. Outdoor media advertising is not only a manifestation of urban economic and commercial prosperity, but also a microcosm of urban culture and quality. They carry the brand’s logo, name, culture and the organic combination of the brand, and have a decisive influence on the communication and shaping of the brand image. There is no doubt that the outdoor advertising led large screen has appropriately become the darling of the new media communication industry.
The outdoor LED advertising screen outlines the urban art. They serve as interpreters of the character of the city, region, and business type, for people to experience and perceive, and become city landmarks for people to find the starting point of departure and the end of return journey. In addition, according to relevant agency data, the average weekly arrival rate of outdoor LED display media is 61.8%, the average weekly arrival frequency in business districts is 3.8, and the monthly average arrival rate is 79.3%. 30% of the audience actively pay attention to outdoor LED displays. In the media, the average single gaze of the audience is 15.1 seconds. It is not difficult to see from the above that outdoor LED advertising is closely linked to all areas of our lives, and plays a decisive role in the formation of a good brand image and attracting consumers to participate in the process of brand communication.
Outdoor LED screen allows brand promotion to meet a better world
Compared with other carriers, outdoor led display screens have outstanding features and advantages. Social progress and technological development provide a good opportunity for the development of led display screens. The led display can really shorten the distance with the audience, make the communication more specific and the marketing more close to the people. LED display can gain a foothold in outdoor advertising media, and its biggest advantage lies in value realization.
With its own high-definition seamless splicing, the led display screen instantly kills traditional communication channels with its beautiful and natural picture. Large-sized, dynamic, and animated advertisements can promote the sensory experience of the audience in an all-round way, and effectively convey information to guide consumption. In this marketing era where the people who win the hearts of the people win the world, large led screens can profoundly affect the audience’s cognition and consumption philosophy.
led display
With its own high-definition seamless splicing, the advantages of beautiful and natural pictures instantly kill traditional communication channels. Large-sized, dynamic, and animated advertisements can promote the sensory experience of the audience in an all-round way, and effectively convey information to guide consumption. In this marketing era where people who win the hearts of the people win the world,
led big screen
Can profoundly affect the audience’s cognition and consumption philosophy.
In the Internet era, large led screens can be more organically integrated with the Internet for real-time broadcast and timely dissemination. Effectively meet the timeliness and dissemination needs of outdoor media.
The application of intelligent mode in the field of outdoor LED advertising screens is also the general trend in the future. The change from quantitative change to qualitative change will not only bring huge development opportunities for the emerging manufacturing industry, including the LED industry, but also indicate the future direction of industrial development. Therefore, in the future, outdoor LED advertising screens will inevitably move forward in a broader and more high-end direction.
The development road of LED display
As my country`s LED display technology advances by leaps and bounds, and domestic LED companies have emerged, the LED display market is in a “saturated” state. It may be difficult for the market to have explosive growth in the future. LED display companies must rely on their own development technology. Competing for market share, China’s LED display industry will face a “big reshuffle.” Under this general background, there are two more obvious development characteristics.
One, fine points
In recent years, a market segment of the LED display industry has gradually formed. There have been some small and medium-sized display companies that have outstanding performance in a small area of LED display. Not only that, several leading LED display companies have used their subsidiaries to develop LED displays. The layout of the category market is becoming clearer. They have accumulated a relatively solid brand foundation in their main subdivisions. These all indicate that the LED screen industry is forming a situation of finely divided display types, and the growth of large brands is very strong and strategic.
Therefore, if the next successful small and medium-sized enterprise want to do, it must quickly strive for a favorable brand positioning in the sub-category, and achieve the ultimate in that sub-product, otherwise there will be a scene of competition with the field that the opponent is familiar with. .
Two, upgrade
Although companies that have been subdivided into product categories have developed strongly, the challengers are the most indispensable in China. Because products of the same type are undergoing diversified development in both hardware facilities and solutions. Especially in the field of small-pitch LED displays.
The innovation and upgrading of products, the extreme division of categories, and the competition of brand reputation have formed an unstoppable situation.
The continuous upgrading of products indicates that the low-end equipment in many industries will not be able to meet the production needs of the current products. Even if some manufacturers have now replaced their production equipment, they will still face pressure on production capacity, whether there is enough production capacity to support the reduction cost. The differentiated market is further segmented, and fierce competition has increased the speed of product upgrades, and it has also prompted companies to rack their brains to make the ultimate product and application segmentation. This will become a major development trend of the next industry.
From the perspective of the current industrial structure, my country`s LED display screens have gradually changed in recent years. Specialized division of labor in the industry is taking shape: manufacturers focusing on display production, market channel sellers, engineering installation after-sales service operators, etc. With the emergence of specialized enterprises, a situation of clear division of labor, close cooperation, and win-win development is taking shape. Specialized division of labor is conducive to becoming more refined, larger, and stronger, and has a positive significance in promoting the healthy development of the entire industry. At the same time, in this process, with the continuous optimization and development of the industry, terminal products will be more diversified and refined, and the market will also pass rounds of competition and elimination, and finally form several leading screen companies and many ” “High-precision and specialized” enterprises dominate the overall situation, and the pattern of a group of small and medium-sized enterprises competing for the remaining market will be a big leap forward for the entire LED display industry.

What is CNC
Traditional mechanical processing is performed by manual operation of ordinary machine tools. During processing, the mechanical tool is shaken by hand to cut metal, and the accuracy of the product is measured by the eye with tools such as calipers. Modern industry has already used computer digitally controlled machine tools for operations. CNC machine tools can automatically process any products and parts directly in accordance with the procedures programmed by technicians in advance. This is what we call “CNC machining”. Numerical control processing is widely used in any field of all mechanical processing, and it is the development trend and important and necessary technical means of mold processing.
“CNC” is the abbreviation of Computerized Numerical Control in English.
The CNC machine tool automatically processes the processed parts according to the pre-programmed processing program. We put the part’s machining process route, process parameters, tool motion trajectory, displacement, cutting parameters (spindle revolutions, feed, back tooling, etc.) and auxiliary functions (tool change, spindle forward, reverse, etc.) Cutting fluid on, off, etc.), according to the instruction code and program format specified by the CNC machine tool, write a processing program list, and then record the content of the program list on the control medium (such as punched paper tape, magnetic tape, disk, magnetic bubble memory) ), and then input into the numerical control device of the numerical control machine tool to command the machine tool to volley the parts.
This whole process from the analysis of the part drawing to the preparation of the control medium is called the compilation of the NC program. The difference between CNC machine tools and ordinary machine tools processing parts is that CNC machine tools automatically process parts according to the program, while ordinary machine tools must be operated by humans. We can achieve the purpose of processing different parts by changing the program that controls the motion of the machine tool. Therefore, CNC machine tools are particularly suitable for processing small batches of parts with complex shapes and high precision requirements.
Since the CNC machine tool must process the parts according to the program, after the programmer has compiled the program, it is input into the CNC device to command the work of the machine tool. The input of the program is through the control medium.
development trend:
The application of numerical control technology has not only brought revolutionary changes to the traditional manufacturing industry, and made the manufacturing industry a symbol of industrialization, but also with the continuous development of numerical control technology and the expansion of application fields, it is important to the international people`s livelihood in some important industries such as national defense, automobile, etc. The development of these industries is playing an increasingly important role. The digitization of equipment in these industries has become a major trend of modern development, such as: bridge-type three- and five-axis high-speed CNC gantry milling machines, gantry mobile five-coordinate AC swing-angle CNC gantry milling machines, gantry mobile Type three-coordinate CNC gantry milling machine, etc.
Rapid development
With the progress of the core processor of the numerical control system, the current high-speed machining center feed speed can reach up to 80m/min, and the dry running speed can reach about 100m/min. Many automobile factories in the world, including my country’s Shanghai General Motors Corporation, have already replaced modular machine tools with production lines composed of high-speed machining centers. The HyperMach machine tool of American CINCINNATI has a maximum feed rate of 60m/min, a rapid rate of 100m/min, an acceleration of 2g, and a spindle speed of 60000r/min. It only takes 30 minutes to process a thin-walled aircraft part, while the same part needs 3 hours to process on a general high-speed milling machine and 8 hours to process on a general milling machine.
Due to the specialization of the division of labor of the various components of the mechanism, under the development of professional spindle factories, the high-speed spindles are becoming more and more popular. In the past, the models used only for high-speed automotive industry (models with more than 15,000 revolutions per minute) have become essential mechanical product requirements.
Precision development
With the advancement of servo control technology and sensor technology, under the control of the CNC system, the machine tool can perform sub-micron precise motion. In terms of machining accuracy, the machining accuracy of ordinary CNC machine tools has been increased from 10μm to 5μm, and the precision machining center has increased from 3~5μm to 1~1.5μm, and the ultra-precision machining accuracy has begun to enter the nanometer level (0.01μm) .
Open development
Due to the standardization and modularization of computer hardware and software modularization, open technology has become increasingly mature, and it has begun to enter the stage of openness. The open CNC technology system has better versatility, flexibility, adaptability and scalability. The United States, the European Community, Japan and other countries have implemented strategic development plans, and carried out the research and formulation of open system system CNC system specifications (OMAC, OSACA, OSEC). The three largest economies in the world have carried out almost the same in a short period of time. The formulation of the scientific plan and technical specifications heralded the advent of a new period of change in CNC technology. In 2000, my country also began to study and formulate the normative framework of China’s ONC CNC system.
Compound development
With the complexity of the product appearance curve, the mold processing technology must be continuously upgraded, which puts forward new demands on the numerical control system. The five-axis machining and six-axis machining of machine tools have become increasingly popular, and the compounding of machine tool processing has become an inevitable development trend. New Nihon Koki’s 5-sided machining machine adopts a composite spindle head, which can realize the machining of 4 vertical planes and the machining of any angle, so that 5-face machining and 5-axis machining can be realized on the same machine tool, and it can also realize inclined surface and Machining of inverted taper holes. German DMG company exhibited the DMUVoution series machining center, which can process 5-sides and 5-axis linkage processing in one clamping, and can be controlled by CNC system or CAD/CAM directly or indirectly.
Selection of CNC lathe
CNC lathes, also known as CNC lathes, are computer numerically controlled lathes. They are currently the most widely used and covered CNC machine tools in China, accounting for about 25% of the total number of CNC machine tools. CNC machine tools are mechatronics products that integrate multiple technologies such as machinery, electricity, hydraulics, pneumatics, microelectronics, and information. It is a working mother machine with the advantages of high precision, high efficiency, high automation, high flexibility, stable and reliable processing quality in mechanical manufacturing equipment. The technical level of CNC machine tools and their percentage of machine tool output and total ownership is one of the important indicators to measure the overall level of a country’s national economic development and industrial manufacturing. CNC lathe is one of the main varieties of CNC machine tools. It occupies a very important position in CNC machine tools. For decades, it has been widely valued by countries all over the world and has been rapidly developed.
CNC lathes and turning centers are high-precision and high-efficiency automated machine tools. It has a wide range of machining performance, and can process straight cylinders, oblique cylinders, arcs and various threads. It has various compensation functions of linear interpolation and circular interpolation, and has played a good economic effect in the mass production of complex parts. Reasonable selection of CNC lathes should follow the following principles:
Selection principle
1. Preparation
Determine the process requirements of typical parts and the batch of processed workpieces. The function that the CNC lathe should have is to make preparations and the prerequisites for reasonable selection of CNC lathes. Meet the process requirements of typical parts
The process requirements of typical parts are mainly the structural size, processing range and accuracy requirements of the parts. According to the accuracy requirements, that is, the dimensional accuracy, positioning accuracy and surface roughness of the workpiece, the control accuracy of the CNC lathe is selected. Choose based on reliability. Reliability is a guarantee for improving product quality and production efficiency. The reliability of a CNC machine tool means that the machine tool runs stably for a long time without failure when it performs its functions under specified conditions. That is, the mean time between failures is long, even if there is a failure, it can be restored in a short time and put into use again. Choose machine tools with reasonable structure, well-manufactured, and mass-produced machines. Generally, the more users, the higher the reliability of the CNC system.
2. Purchase
Machine tool accessories, spare parts and their supply capacity, cutting tools, are very important for CNC lathes and turning centers that have been put into production. When choosing a machine tool, carefully consider the compatibility of tools and accessories.
3. Focus on the identity of the control system
Manufacturers generally choose products from the same manufacturer, and at least buy the control system of the same manufacturer, which brings great convenience to the maintenance work. Teaching units require students to be knowledgeable and knowledgeable, so it is a wise choice to choose different systems and to equip them with various simulation software.
4. Choose according to the performance-price ratio
Make sure that the functions and accuracy are not idle, not wasted, and do not choose functions that have nothing to do with your own needs.
5. Protection of machine tools
When needed, the machine tool can be equipped with fully enclosed or semi-enclosed protective devices and automatic chip removal devices.
When choosing CNC lathes and turning centers, the above principles should be considered comprehensively.

Common types of communication towers are angle steel towers, single-tube towers, landscape towers, guyed towers, beautification towers, poles, etc. The communication corner steel tower is composed of tower shoes, tower body, lightning rod, platform, climbing frame, antenna support, feeder frame and lightning down conductor.

The single-tube tower can adapt to the installation of a variety of complex sites in the field.

The landscape tower integrates communication, lighting, landscape and other functions into one, making it easy to select a site.

Production Process:
The communication tower is composed of steel components such as tower body, platform, lightning rod, climbing ladder, antenna support, etc., and is treated with hot-dip galvanizing anticorrosive treatment. It is mainly used for the transmission and emission of microwave, ultrashort wave, and wireless network signals. In order to ensure the normal operation of the wireless communication system, the communication antenna is generally placed at the highest point to increase the service radius to achieve the ideal communication effect. The communication antenna must have a communication tower to increase the height, so the communication tower plays an important role in the communication network system. The national standard communication tower series products produced by our company have been praised by China Mobile, China Unicom, telecommunications, public security forces and other departments for many years. praise.

Features of communication tower:
Communication tower is a kind of signal transmission tower, also called signal transmission tower or signal tower. Its main function supports signal transmission and supports signal transmission antennas. Use Mobile/Unicom/Traffic Satellite Positioning System (GPS) and other communications departments.
Communication tower features: In the construction of modern communication and radio and television signal transmission tower projects, no matter whether the user chooses the ground plane or the roof tower, it can serve as a high communication antenna, increase the communication or TV transmission signal service radius, and achieve the ideal professional communication effect In addition, the roof also serves as the lightning protection grounding and aviation warning of the building.

Floodlight, English name: Floodlight Floodlight is a point light source that can evenly illuminate in all directions. Its illumination range can be adjusted arbitrarily, and it appears as a regular octahedron icon in the scene. Floodlights are the most widely used light source in the production of renderings. Standard floodlights are used to illuminate the entire scene. Multiple floodlights can be used in the scene. In order to produce better results, the light bulb for shooting is installed in a large reflecting umbrella for use as a high-brightness diffuse light source. Although it is indispensable for indoor lighting, it can also be regarded as one of the light sources with good lighting effects for ordinary amateur indoor photography.
Introduction:
Floodlights are not spotlights, projection lights, or spotlights. Floodlights produce highly diffuse, non-directional light instead of a clear beam of light, so the shadows produced are soft and transparent. When used for object lighting, the rate of light reduction is much slower than when using spotlights. There are even some floodlights with very slow decay that look like a light source that does not produce shadows. The spotlight projects a directional, well-defined beam to illuminate a specific area.
material:
The lamp body material is aluminum alloy die-casting and electrostatic spraying surface treatment. The layer is resistant to high temperature, acid and alkali, and anti-aging. The lamp body adopts the integrated design of light source and electrical appliances, compact structure, small volume, and imported high-purity aluminum material for the reflector. Reflective surface design, forming a variety of different needs of light distribution, high luminous efficiency, small glare light source can be based on customer needs, you can use single-ended or double-ended metal halide lamp or high-pressure sodium lamp head using E40 or RX7s mask is 5mm tempered glass, Safety, high temperature resistance, high strength, good light transmittance The sealing strip is anti-corrosion silicone rubber seal, which has good sealing, waterproof and dustproof application of high-performance inductive ballasts, triggers and capacitors to ensure that the electrical performance of the lamps meets the requirements of the national standard. The line is 1mm2PVC and is suitable for signs, stadiums, squares, trees, billboards, parking lots, building exterior walls, etc.
Features:
Floodlights have been recognized by more and more people as a replacement product of electric light sources, and they have also been used in many fields. Its main features are as follows:
1. Long lifespan: General incandescent lamps, fluorescent lamps, energy-saving lamps, and other gas discharge lamps have filaments or electrodes, and the sputtering effect of filaments or electrodes is an inevitable component that limits the life of the lamp. High-frequency electrodeless discharge lamps require no or less maintenance and are highly reliable. The service life is as high as 60,000 hours (calculated as 10 hours per day, the service life can reach more than 10 years). Compared with other lamps: 60 times that of incandescent lamps; 12 times that of energy-saving lamps; 12 times that of fluorescent lamps; 20 times of high-pressure mercury lamps; the long life of floodlights greatly reduces maintenance troubles and replacement times , Saving material costs and labor costs, and can ensure long-term normal use. Because the floodlight has no electrodes, it emits light by combining the principle of electromagnetic induction and the principle of fluorescent discharge, so it does not have inevitable components that limit its life. The service life is only determined by the quality level of electronic components, circuit design and foam manufacturing process. Generally, the service life can reach 60,000 to 100,000 hours.
2. Energy saving: Compared with incandescent lamps, energy saving is about 75%. The luminous flux of 85W floodlights is roughly equivalent to that of 500W incandescent lamps.
3. Environmental protection: It uses solid amalgam, even if it is broken, it will not pollute the environment. It has a recoverable rate of more than 99%, and it is a truly environmentally friendly green light source.
4. No stroboscopic: Because of its high working frequency, it is regarded as “no stroboscopic effect”, will not cause eye fatigue and protect eye health.
5. Good color rendering: the color rendering index is greater than 80, the light color is soft, showing the natural color of the illuminated object.
6. Optional color temperature: from 2700K to 6500K, customers can choose according to their needs, and can be made into colored light bulbs for garden decoration lighting.
7. High proportion of visible light: In the emitted light, the proportion of visible light is more than 80%, and the visual effect is good.
8. No preheating is required. It can be started and restarted immediately, and the light decay phenomenon in ordinary discharge lamps with electrodes will not be caused by multiple switching.
9. Excellent electrical performance: high power factor, low current harmonics, constant voltage power supply, and constant luminous flux output.
10. Installation adaptability: It can be installed in any position without restriction.
application:
Floodlights illuminate objects uniformly in all directions from a specific point. It is best to use it to simulate light bulbs and candles.
Main application scope: billboards, highways, railway tunnels, bridges and culverts, squares, buildings, etc.
omni: Floodlight is a kind of “point light source” that can illuminate evenly in all directions. Its illumination range can be adjusted arbitrarily, and it can cast shadows on objects. Floodlights are the most widely used light source in renderings. “Standard floodlights” are used to illuminate the entire scene without any specific range. Multiple floodlights can be used in the scene to coordinate their effects to produce better results. It should be noted that floodlights cannot be built too much, otherwise the renderings will appear flat and dull. Therefore, in the usual rendering of renderings, pay more attention to the impact of lighting parameters and layout on the light perception of the entire renderings scene, accumulate more experience, and master the lighting matching skills.

The lighting project is also called the urban brilliance project, which refers to the lighting of shopping malls, tourist attractions, and streets with heavy traffic in order to beautify the urban environment and improve the overall image of the city.
What issues should be paid attention to when implementing the building LED lighting project:
1) Choose different lighting schemes according to different uses of the building
Office buildings and office buildings are public spaces for business people. The lighting needs to show a sense of high-end fashion; commercial buildings, shopping malls and other commercial scenes are crowded with people. The lighting project can use the glass curtain wall LED display to enhance the commercial value of the glass curtain wall of the building. Brighten the image of the city, disseminate urban culture and advertising information; as long as the lighting project of private residential buildings creates a feeling of warmth and friendship for the family, some warm-toned lamps can be used to set off a warm and harmonious atmosphere.
2) Choose different lighting products according to the lighting area and viewing distance
The lighting area is different, the viewing distance is different, and the browsing visual experience is different, which affects the tools used in building body lighting. Glass curtain wall LED display (also known as transparent LED display), LED light bar screen, LED digital tube and other lighting products show obvious differences in effects. When choosing lighting products, you should adapt to local conditions and choose the best solution.
3) Choose different lighting schemes according to the cost budget
Generally speaking, building LED lighting projects are generally large in area, often thousands of ways, and the total adds up to a huge cost. Investors should choose a suitable lighting plan based on their own cost budget, and use various lighting products in a reasonable combination to avoid extravagance and waste, resulting in unnecessary losses of resources.
The building LED lighting project is not only to beautify the appearance of the building, but also to change the city’s night landscape environment. The colorful buildings make the city’s night sky shining with stars. At the same time, the building LED lighting project is also an improvement to our living environment. In the black night sky, if you can see buildings in different colors, you can not only highlight the characteristics of the building, but also demonstrate the corporate culture and strength.
Four major technical points of led building lighting:
1. The balance and harmony of light and dark
In layman’s terms, it means “be bright if it should be bright, and not bright if it shouldn’t be bright.” In a sense, the value of night scene lighting is to seek the balance and harmony between light and darkness, so that “the ones that should be bright are bright, and the ones that shouldn’t be bright are not bright”, so as to show people that the city is brightened at night. The lighting project that every city must carry out. The lighting of the city not only greatly improves the image of the city, but also plays an important role in the development of the city`s tourism. Regardless of the starting point, the principle of lighting must be followed. Only through a good design and showing it can the meaning of existence be reflected to a certain extent. Otherwise, not only will it not be able to improve the effect of the city’s lighting, but it will also not add points to the city’s image. Yangguang lighting creates a unique and charming landscape.
2. Balance and harmony
To achieve the balance and harmony between light and dark, it is first necessary to systematically grasp the night landscape. The night landscape is also a landscape system. When the design positioning or theme is established, the various components that make up the night landscape system need to be positioned or arranged separately. Which part should be bright? Which part should not be bright? What brightness should the bright part be? What should not be bright How much brightness does it need to hide or give? Through overall planning, various landscape elements can be bright and dark at night, bright or light, and form a whole night landscape.
3. Analysis of urban lighting project
For example, for a building, its different parts or elements can be all illuminated in a simplified way, and it also needs to “light up the parts that should be bright, and make the parts that shouldn’t be unlit”. Finally, the balance and harmony between light and dark is the “contrast” of brightness in terms of technical indicators. Contrast quantifies and standardizes the balance and harmony of brightness. Therefore, when lighting designers design, they need to introduce the brightness index of contrast to ensure the balance and harmony of light and dark.
4. Urban lighting generally includes
Design and implement lighting projects for city squares, commercial and cultural streets, tourist landscapes, monumental buildings, historical buildings, cultural buildings, major government office buildings and traffic buildings, with advanced floodlighting equipment to showcase their richness at night Colorful, clear levels, and distinctive features of the light image, build some high-grade, good-quality, and light environment places that are compatible with the city`s image, which can well set off the solemn, cordial and elegant style of the city`s central area, making the city more Strong sense of the times, thereby increasing the attractiveness of urban space, and fully expressing the urban environmental cultural information and its architectural aesthetics. Therefore, the use of lighting to improve the city`s night landscape will have a positive impact on the development of urban tourism and the improvement of the living environment, and it will bring great social benefits to the city.

The full name of the solar controller is the solar charge and discharge controller. It is an automatic control device used in the solar power generation system to control the multi-channel solar cell array to charge the battery and the battery to supply power to the solar inverter load. It regulates and controls the charging and discharging conditions of the battery, and controls the power output of the solar cell components and the battery to the load according to the power demand of the load. It is the core control part of the entire photovoltaic power supply system.
Introduction:
The solar control system consists of solar panels, batteries, controllers and loads.
The solar controller is a device used to control the photovoltaic panel to charge the battery and provide the load control voltage for the voltage sensitive equipment. It regulates and controls the charging and discharging conditions of the battery, and controls the power output of the solar cell components and the battery to the load in accordance with the power demand of the load. It is the core control part of the entire photovoltaic power supply system. It is specially designed for the power supply system of communication or monitoring equipment in remote areas. The controller’s charge control and load control voltages are fully adjustable, and can display battery voltage, load voltage, solar array voltage, charging current and load current. Almost all solar power generation systems powered by batteries require a solar charge and discharge controller. The role of the solar charge and discharge controller is to adjust the power, the power delivered from the Solar Panel to the battery. The overcharge of the battery can at least significantly reduce the battery life, from the worst to damage the battery until it cannot be used normally.
The solar controller uses a high-speed CPU microprocessor and a high-precision A/D analog-to-digital converter. It is a microcomputer data acquisition and monitoring control system. It not only can quickly collect the current working status of the photovoltaic system in real time, obtain the working information of the PV station at any time, but also accumulate the historical data of the PV station in detail, which provides an accurate and accurate method for evaluating the rationality of the PV system design and the reliability of the quality of the inspection system components. Sufficient basis. In addition, the solar controller also has a serial communication data transmission function, which can centrally manage and remotely control multiple photovoltaic system sub-stations.
Solar controllers usually have 6 nominal voltage levels: 12V, 24V, 48V, 110V, 220V, 600V.
At present, the controller is developing towards multi-function, and there is a trend to integrate the traditional control part, inverter and monitoring system.
effect:
The most basic function of the solar charge and discharge controller is to control the battery voltage and open the circuit, and that is, when the battery voltage rises to a certain level, it stops the battery charging. The old version of the controller mechanically completes the opening or closing of the control circuit, stopping or starting the power delivered to the battery by the power supply.
In most photovoltaic systems, a controller is used to protect the battery from overcharging or over-discharging. Overcharging may vaporize the electrolyte in the battery and cause malfunctions, while overdischarging the battery may cause premature battery failure. Both overcharge and overdischarge may damage the load. Therefore, the controller is one of the core components of the photovoltaic power generation system and the main part of the BOS (Balance of System).
Simply put, the functions of the solar controller can be divided into:
1. Power adjustment function;
2. Communication function: 1 simple indication function 2 protocol communication function such as RS485 Ethernet, wireless and other forms of background management;
3. Perfect protection function: electrical protection reverse connection, short circuit, over current, etc.
principle:
Solar panels are photovoltaic devices (the main part is semiconductor materials). After being irradiated by light, the photovoltaic effect generates electric current. Due to the properties and limitations of materials and light, the generated current is also a volatile curve. If the generated current is directly charged into the battery or directly supplies power to the load, it will easily cause damage to the battery and the load. Reduced their lifespan. Therefore, we must first send the current to the solar controller, use a series of dedicated chip circuits to digitally adjust it, add multi-level charge and discharge protection, and use our unique control technology “adaptive three-stage charging mode (Figure 1)” to ensure the safety and service life of the battery and load. When supplying power to the load, the current of the battery is also allowed to flow into the solar controller first, and after its adjustment, the current is sent to the load. The purpose of this is: one is to stabilize the discharge current; the other is to ensure that the battery is not over-discharged; the third is to carry out a series of monitoring and protection on the load and the battery.
If you want to use AC power equipment, you also need to add an inverter before the load to convert to AC.
main feature:
1. Using single-chip microcomputer and special software to realize intelligent control;
2. Accurate discharge control using battery discharge rate characteristic correction. The end-of-discharge voltage is the control point corrected by the discharge rate curve, which eliminates the inaccuracy of the over-discharge of simple voltage control, and conforms to the inherent characteristics of the battery, that is, different discharge rates have different end voltages;
3. With automatic control of overcharge, overdischarge, electronic short circuit, overload protection, unique anti-reverse connection protection, etc.; none of the above protections will damage any parts, and will not burn insurance;
4. The series PWM charging main circuit is adopted, which reduces the voltage loss of the charging circuit by nearly half compared with the charging circuit using diodes, and the charging efficiency is 3%-6% higher than that of non-PWM, which increases the power consumption time; improves over-discharge recovery Charging, normal direct charging, and automatic floating charging control methods make the system have a longer service life; at the same time it has high-precision temperature compensation;
5. The intuitive LED luminous tube indicates the current battery status, allowing users to understand the usage status;
6. All controls use industrial-grade chips (only for industrial-grade controllers with I), which can run freely in cold, high temperature, and humid environments. At the same time, the crystal oscillator timing control is used, and the timing control is accurate;
7. The potentiometer adjustment control set point is cancelled, and the E-square memory is used to record each work control point, which digitizes the setting, and eliminates the error of the control point due to the vibration of the potentiometer, temperature drift, etc. The accuracy and reliability of the control point are reduced. Sexual factor
8. The digital LED display and settings are used, and all settings can be completed by one-key operation. It is extremely convenient and intuitive to use to control the working status of the entire system, and to protect the battery from overcharge and overdischarge. In places with large temperature differences, a qualified controller should also have the function of temperature compensation. Other additional functions such as light control switch and time control switch should be optional options of the controller.
mode:
1. Pure light control mode: when there is no sunlight, the light intensity drops to the starting point. After the controller confirms the start signal after a delay of 10 minutes, the load is turned on according to the set parameters, and the load starts to work; when there is sunlight, the light intensity rises to start Point, the controller delays for 10 minutes to confirm the shutdown signal and then closes the output, and the load stops working.
2. Light control plus time control mode: the startup process is the same as pure light control, when the load is working to the set time, it will automatically shut down, and the set time is 1 to 14 hours.
3. Manual mode: In this mode, the user can control the opening and closing of the load by pressing the buttons, regardless of whether it is during the day or at night. This mode is used in some special load occasions or during debugging.
4. Debugging mode: used for system debugging. When there is a light signal, the load is turned off, and the load is turned on without a light signal, which is convenient for checking the correctness of the system installation during installation and debugging.
5. Normally open mode: The load has been powered on and keeps the output state. This mode is suitable for loads that require 24 hours of power supply.
The popular solar controllers on the market mainly include ordinary solar controllers, PWM solar controllers and MPPT solar controllers.
Ordinary solar controller is the first-generation technology. The working principle is to directly connect the output of the solar panel to the battery port, and disconnect it when the battery is full. It is difficult to fully charge the battery due to the internal resistance of the battery, and the solar panel It has not been fully utilized, and the charging conversion efficiency is only 70 to 76%, which has been eliminated by the market, and basically few people use it.
The PWM solar controller is the second generation technology, and the most on the market now. The working method is PWM control. Compared with ordinary solar controllers, it has improved a lot and can solve the problem of battery dissatisfaction. The charging conversion efficiency is 75-80%. , But the solar panels are not fully utilized.
MPPT solar controller is the third generation technology, the most high-end solar controller. The MPPT solar controller refers to the solar controller with the function of “Maximum PowerPoint Tracking”. It is an upgraded product of the PWM solar controller. The MPPT solar controller can detect the voltage and current of the solar panel in real time, and continuously track the maximum Power (P=U*I), so that the system always charges the battery with the maximum power. The MPPT tracking efficiency is 99%, and the power generation efficiency of the entire system is as high as 97%. It also has excellent management of the battery. It is divided into MPPT charging and constant Voltage equalization charging and constant voltage floating charging. With the advancement of technology and energy conservation, the trend of MPPT solar controllers replacing traditional PWM solar controllers is irreversible.
The new solar controller has the following main functions:
1. Overcharge protection: When the charging voltage is higher than the protection voltage, the battery will be automatically turned off to charge the battery. After that, when the voltage drops to the maintenance voltage, the battery will enter the floating charge state. When the voltage is lower than the recovery voltage, the float charge will be closed and enter the equal charge state .
2. Over-discharge protection: When the battery voltage is lower than the protection voltage, the controller automatically turns off the output to protect the battery from damage; when the battery is recharged, it can automatically restore power.
3. Load over-current and short-circuit protection: After the load current exceeds 10A or the load is short-circuited, the fuse is blown, and it can be used after replacement.
4. Overvoltage protection: When the voltage is too high, the output is automatically turned off to protect the electrical appliances from damage.
5. With anti-reverse charging function: Schottky diodes are used to prevent the storage battery from charging the solar battery.
6. With anti-lightning function: when there is a lightning strike, the varistor can prevent the lightning strike and protect the controller from damage.
7. Solar battery reverse connection protection: The solar battery “+” and “-” are connected reversely, and can continue to be used after correction.
8. Battery reverse connection protection: the battery “+” and “-” are connected in reverse polarity, the fuse is blown, and it can be used after replacement
9. Battery open circuit protection: In case of battery open circuit, if the solar battery is charging normally, the controller will limit the voltage at both ends of the load to ensure that the load is not damaged. If it is at night or when the solar battery is not charging, the controller will have Without power, there will be no action.
10. With temperature compensation function.
11. Self-inspection: When the controller is affected by natural factors or improperly operated by humans, the controller can be self-inspected to let people know whether the controller is intact, reducing a lot of unnecessary man-hours, and creating conditions for winning the quality of the project and the construction period. .
12. Recovery interval: It is the recovery interval for over-charge or over-discharge protection to avoid line resistance or the self-recovery characteristics of the battery from causing the load to move.
13. Temperature compensation: monitor the temperature of the battery, and correct the charging and discharging value to make the battery work in an ideal state.
14. Light control: It is mostly used for automatic lamps. When the environment is bright enough, the controller will automatically turn off the load output; and when the environment is dark, it will automatically turn on the load to realize the function of automatic control.
Installation and precautions:
1. Open the package and fix it in a suitable place (please avoid direct sunlight and humid places).
2. First connect the battery lead (in order to prevent errors in the automatic identification function), and wait for the controller to complete the identification process (after the level indicator indicates the battery power), then connect the solar panel lead, and finally turn off the load. Connect the load line under the circumstances.
3. In order to use safety, do not use excessive load or increase the solar panel too large; use a power supply such as a power supply to replace the solar battery to charge the battery.
4. When charging, remove the solar panel, and the charging current should not be too high.
5. Pay attention to the positive and negative poles of the battery.
Failure and troubleshooting:
1. The load does not work
(1) During the day, the controller has light control.
(2) The power in the battery is insufficient.
(3) Whether the wiring is correct.
(4) Remove all wires, repeat the above installation process, and let the controller re-identify.
2. It can be used in the first few days but not working after a few days
(1) The solar cell wiring is incorrect.
(2) The solar cell is not connected properly.
3. No light control
(1) The solar cell wiring is incorrect.
(2) This function is not set, please reset it.
4. It works when it is turned on, and it cannot be controlled by light or time.
(1) This function is not set, please reset it.
(2) The ambient light of the solar panel is strong enough.
5. The work instruction flashes non-stop
The load is short-circuited or the load is too large.

Light pole classification:
The English name of the light pole: Lighting Pole, according to the material can be divided into iron light pole, FRP light pole, cement light pole, aluminum alloy light pole.
(1) Iron light pole:
The advantages of iron light poles are high strength, shortcomings: 1. It is easy to corrode and rust; 2. The weight is three times that of aluminum, and the transportation and installation cost is high; 3. The recycling value is limited; 4. The plug-in installation method is not allowed; 5. Surface treatment Way monotonous
(2) FRP pole:
The advantages of FRP poles: 1. Light weight and easy installation; 2. Plug-in installation method can be adopted.
Disadvantages of FRP poles: 1. Short service life; 2. No recycling value, very difficult and expensive to handle; 3. Ultraviolet rays damage the pole body very seriously; 4. Maintenance costs are too high; 5. Easy to be damaged by external equipment.
(3) Cement light pole:
The advantages of cement poles: 1. Plug-in installation can be used; 2. Good strength; 3. No spraying required.
Disadvantages of cement light poles: 1. Very heavy, which brings expensive transportation costs; 2. No recycling value; 3. Installation equipment is expensive and difficult to install; 4. It is more dangerous than other materials.
(4) Aluminum pole:
Advantages of aluminum alloy poles:
1. Good anti-corrosion performance;
2. Maintenance-free;
3. Light weight, convenient for transportation and installation;
4. Abundant surface treatment methods;
5. Longer lifespan than iron lamp poles and FRP lamp poles;
6. It can be recycled 100%, and the melting temperature is low, energy saving and emission reduction;
7. Plug-in installation method can be adopted;
8. The amplitude of the pole is smaller than that of the glass fiber reinforced plastic pole.
Disadvantages of aluminum poles: Compared with iron poles, the strength of aluminum poles is relatively low, but the strength of aluminum poles can reach the T6 standard through later heat treatment.
Due to the many advantages of aluminum alloy light poles that are unmatched by other light poles, aluminum alloy light poles have been commonly used in developed countries such as Europe and the United States. At present, it is still in its infancy in China.
Production process:
(1) Cutting → (2) bending → (3) welding → (4) repairing and polishing → (5) shaping → (6) flushing → (7) installing the bottom plate → (8) welding the bottom plate → (9) opening the door →(10) Welding door strip, electrical appliance strip, lock bottom → (11) Curved fork → (12) Galvanizing → (13) Plastic spraying → (14) General inspection
Process points
Cutting and cutting
Before cutting, first adjust the inclination of the cutting machine to match the required slitting ruler.
Determine the position of the steel plate to ensure the maximum size of the remaining material so that the remaining material can be used.
The length dimension is guaranteed by Kaiping, the wide bottom dimension is required to be ≤±2mm, and the blanking dimension tolerance of the high rod is to take the positive tolerance for the big head of each section of the rod; generally: 0-2m. Take the minus tolerance of the small head, after the -2-0mm size is adjusted, it is completed by the cutting machine and the automatic cutting machine.
Equipment aspect: When cutting materials, check the operation of the rolling shear equipment, remove the debris on the track, and keep the equipment in good operating condition.
Bend
Bending is the most critical process in the production of light poles. The quality of the bending directly affects the quality of the light pole and cannot be repaired after bending. The specific attention is as follows:
Before bending: first remove the cutting slag of the sheet to ensure that there is no cutting slag crushing the mold during bending.
Check the length, width and straightness of the sheet, the straightness is ≤1/1000, if the straightness meets the requirements, correct it, especially the polygonal rod must ensure the straightness.
Increase the bending depth of the press brake and determine the position of the sheet metal.
Mark the line correctly on the sheet, the error: ≤±1mm. 2.5 Correctly align the lines and bend correctly to minimize the pipe seam, and the height of the two sides should not be greater than 5mm.
welding
Perform straight seam welding on the pipe seam after bending. Because welding is automatic ambush welding, the main reason is that the welder should have more responsibility. When welding, attention should be paid to adjusting the welding position to ensure the straightness of the weld.
Repair and polish
Repair grinding is to repair the defects of the tube blank after automatic welding. The repairer should check one by one, and repair the defective place. After the repair welding is completed, the repair is carried out. The repaired joint is basically the same as the automatic weld.
Plastic surgery
The shaping process includes the straightening of the lamp pole and the round and polygonal diagonal dimensions of both ends of the billet pole. The general tolerance: <±2mm. The straightness error of the billet rod does not exceed: ≤±1.5/1000.
Head together
The flushing process is to smooth the two ends of the bent tube blank to ensure that the nozzle is perpendicular to the center line, and there is no angle and height unevenness. At the same time, after smoothing, the end surface is polished.
Install the bottom plate
For spot welding of bottom flange and ribs, the key is to ensure that the bottom flange is perpendicular to the straight center line of the lamp, the ribs are perpendicular to the bottom flange, and the straight line of the lamp is at the same time.
Welded bottom flange
The welding requirements refer to the welding process of the national standard to ensure the welding quality. The welding seam should be beautiful, free of pores and slag.
Open the door
In the working process of this process, you must be bold and careful (1) First, you must see the drawing to determine the direction of the door, and then locate it according to the drawing size. Dimensions include: up and down, left and right, and the size of the door frame. When plasma cutting, be careful to ensure that the slit is in a straight line. At the same time, the cut door panel and the light pole are marked with electric welding.
Welding rod
When welding the door strip, the door strip with a width of 20mm should be extended by 8-10mm and put it down. Especially when spot welding, the door strip should be close to the light pole, and the welding should be firm. The welding device and the lock base are mainly located in accordance with the drawings. The lock base is welded in the middle of the door with an error of ≤±2mm. Keep the upper level and cannot exceed the light pole.
Curved fork
The fork-bending process has the same properties as the door opening, so you should be bold and careful. First, pay attention to the direction of the door, second, pay attention to the starting point, the third angle of the light fork, the traction speed can not be fast or slow, and the yield rate is 100%.
Galvanized
The quality of galvanizing directly affects the quality of light poles. Galvanizing is required to be galvanized in accordance with national standards. After plating, the surface is smooth, without color difference, and there can be no sagging. Light poles with severe sagging must be re-plated.
Spray
The purpose of plastic spraying is one for aesthetics and the other for corrosion prevention
Polishing: Use a polishing wheel to grind the surface of the galvanized pole to ensure that the surface of the pole is smooth and flat.
Straightening: Straighten the polished light pole and shape the mouth shape. The unstraightness of the light pole must reach 1/1000. The caliber requirement: small pole ≤±1mm; high pole ≤±2mm.
Door panel
All door panels are processed after galvanizing, including zinc hanging, zinc leakage and zinc storage in keyholes.
When drilling the screw holes, the electric drill must be perpendicular to the door panel. The space around the door panel should wait until the door panel is level.
After the screws are fixed, the door panel cannot be loosened, and the fixing must be firm to prevent it from falling off during transportation.
Spray powder: Put the light pole with the door into the spray room, spray the color of the plastic powder according to the production plan, and then enter the drying room. The temperature and holding time of the drying room must be strictly in accordance with the requirements of each plastic powder to ensure the plastic powder Quality requirements such as adhesion and finish.
Factory inspection
The factory quality inspector conducts the factory inspection. The factory inspector must inspect the light pole inspection items one by one. The inspector must record and archive the items at the same time. The quality inspector can sign the product before delivery.

Classification of shelters:
According to materials: galvanized shelters, stainless steel shelters, aluminum shelters, etc.
According to the style: modern bus shelters, classical bus shelters, European and American bus shelters, township shelters, etc.
There are also some that are not strictly classified, such as simple bus shelters
Form classification: harbor style, parallel style
Advantages and characteristics of shelters:
1. Connect the main roads of the city.
City bus shelters are connected to the main traffic arteries in the urban area. The traffic flow is like a wave of people, covering a wide area, and a large audience. Regardless of the season, rain, snow, wind and frost, day and night, it delivers information all the time.
2. Super close publicity.
The city bus shelters have super close contact with people and are the closest to the public. The effect is intuitive and vivid, the picture is exquisitely made, the publicity is vivid, the day scene is eye-catching, the night is radiant, and the visual impact is strong.
3. Repeated indoctrination, chain guidance, sought after by merchants.
Different locations, chain propaganda, repeated instillation and guidance make the advertising content impressed and solid, and it is a propaganda platform that is sought after by the majority of merchants.
4. Easy installation and quick information transmission.
The installation is simple, the publication is fast, and the information is fast, reflecting the low investment cost and high efficiency.
5. Advertising is flexible.
During the advertising period, the road section can be flexibly adjusted, and the sales and service terminals can be approached to determine consumers’ purchase intentions.
6. Beautify the city and be pleasing to the eye.
It is pleasing to the eyes, beautifies the environment, dresses up the appearance of the city, enhances the reputation of the company, has a public welfare, consumers are willing to accept, and spreads more friendly.
7. More pictures, reduce costs, and increase profits.
A bus shelter will have multiple large and small light box screens, which can promote multiple businesses at the same time, reducing costs and increasing profits. It also allows us to have more loyal and cooperative merchants.
8. Equipped with optional functions, multiple options, rich platforms, and various ways.
In the production process, the number of promotional images can be increased to 6-8 by adding a scrolling system; adding LED systems to attract more customers; adding multiple optional functions such as voice and smart publicity to create a rich platform.
Some important factors for choosing a shelter:
1. Materials: With the acceleration of the construction of modern bus shelters, more and more materials are produced. When choosing a manufacturer, users can analyze whether they meet the needs of users according to the specific materials of the manufacturer;
3. Service life: The service life of general shelters is about 5-8 years;
4. The quality of the shelter: the sturdiness and protective effect of the shelter in use, etc.
The popular bus shelters nowadays mainly include:
Antique shelters and intelligent shelters.
Factors to consider when designing a bus shelter:
1. Consider local characteristics;
2. Reasonable design for the consideration of the common people, especially the elderly;
3. Combine urban culture.
Principles of designing bus shelters:
1. Grasp the details of the bus station:
The design style of the bus station will be completely different depending on the location and other related factors. The more crowded the place, the more concise and clear the design of the bus stop, too cumbersome will make the crowd feel depressed. The current bus station should be designed with a comprehensive consideration, not just to let passengers know the route. If the bus station is built around the scenic spot, it is necessary to combine the scenery of the scenic spot to make the bus station more vivid and highlight the individuality of the bus station.
2. The improvement of the appearance of the bus station:
The appearance of a bus station determines how people think about it. Everyone has a sense of beauty, and the bus station is no exception. While designing the bus station platform, it is also necessary to improve the appearance of the bus station platform, so as to reflect the beauty of the bus station platform, and it is the display of the culture of a city. In ancient capitals with different histories, there are different antique-style bus stations. Both in color and shape, the charm of the ancient capital can be explained, thus showing the individuality of the bus station.
3. Diversified styles of bus stops:
The bus station does not need too many elements to be modified, nor does it need to be constructed with too high-end materials, but to express the diversified style of the bus station with the most common materials in life. Using the materials that everyone is using, the bus station platform is produced that is very different from others, which greatly demonstrates the individuality of the bus station.
Points to note when designing bus shelters:
A successful bus station is not only beautiful, but more important is to consider the people that the bus station is suitable for, and the convenience and speed of manufacturing. This is also a key step in the design of the bus station that focuses on practical results. To achieve this key point, it is necessary to find a bus station manufacturer with comprehensive technology and sales.
The bus shelter should fully embody the people-oriented design concept. Its design should include passenger waiting platforms, ceilings, stop signs, area maps, waiting seats, commercial or public service advertisements, lighting systems, and dedicated bus roads in front of the platforms. Passengers use the entire bus system, including platforms, signs, trash cans, advertisements, and roads. Therefore, when designing bus shelters, we should try our best to consider many aspects to meet the needs of more people. In terms of practical functions, the following nine factors are usually considered:
1. Waiting function:
The most basic function of bus shelters requires reasonable space settings. The size of the platform is set according to the specific environment to ensure that the station can accommodate the appropriate number of people and vehicles, so that the station can play its greatest role and facilitate people to travel.
2. Stop sign:
The stop sign is one of the necessary functions of the bus shelter. A reasonable design of the bus stop sign can make it easier and faster for people to find the vehicle they need to take. When designing a bus stop sign, it is usually necessary to consider the color and size of the font on the stop sign, the number of trains on the stop sign, the direction of the trains, and the night lighting of the stop sign.
3. Blocking:
In rainy or too hot cities, it is necessary to have sheltered roofs for bus stops. When designing the ceiling, we usually have to consider the height and coverage of the ceiling, the number of people that can be accommodated, the method of shelter (closed or open), and the transparency of the material used for shelter.
4. Rest place:
The rest area of the bus stop generally refers to the seating area. The number and placement of seats are reasonably arranged so that people can make full use of these resources. At the same time, we can also look for substitutes for seats to make this waiting The pavilion can become more interesting and aesthetic.
5. Lighting system:
Reasonable lighting arrangement can make people clearly understand the road conditions and train number information, and ensure people’s night activities. At the same time, good lighting design can make the city more beautiful and beautify the city’s image.
6. Safety guidance:
Safety is the top priority in the design of the bus stop. The flow of people should be rationalized to ensure the safety of passengers. The designer should take into account emergencies and countermeasures when designing.
7. Convenient to queue up:
Set up a reasonable position for getting on and off the bus, and you can use guardrails, signs, symbols, etc. to remind everyone to line up and get on and off the bus, not to be crowded.
8. Trash can settings:
Setting up the trash can with the bus stop can make it easier for people to find the trash can. As a waiting place, the bus stop will have a relatively large flow of people and generate more garbage. The installation of garbage bins can ensure urban hygiene.
9. Intelligent system:
Nowadays, the society is developing rapidly. Obviously, traditional bus shelters cannot keep up with the pace of social development and cannot meet people’s needs. However, the intelligent transformation of modern bus shelters not only has a novel exterior design, is equipped with a solar power supply system, but also is equipped with many humane Some utilities. Such as wireless wifi, emergency charging, car status information, vending machines or real-time news, etc. With the future development, the bus shelter will be more intelligent and closer to the lives of the people. Waiting for the bus will be a very wonderful thing.

Electronic police
Electronic police is a method of using automated detection and measurement technology to capture traffic violations or traffic accidents, and use the network to transmit the collected information back to the public security department for analysis and processing, and use this as evidence to punish the perpetrators to reduce accidents and assist traffic police Working method.
The key to the “electronic police” being widely recognized by the industry and society is that it can literally describe the functions of the devices and systems in actual use more accurately.
“Electronics” covers such equipment and systems with modern advanced technology, including: video detection technology, computer technology, modern control technology, communication technology, computer network and database technology, etc.
definition:
narrow sense
Commonly known as the “red light running automatic recording system”, it can be installed at signal-controlled intersections and road sections, and is a system that continuously and automatically detects and records the red light running behavior of motor vehicles in designated lanes.
Generalized
A system that can be installed at intersections and road sections to continuously and automatically detect and record the driving behavior of motor vehicles in designated lanes.
basic introduction:
The high-definition red light electronic police system uses advanced photoelectric, computer, image processing, pattern recognition, remote data access and other technologies. Using the condition that each vehicle corresponds to a unique license plate number, the vehicle and license plate images of each motor vehicle passing by the monitored road are continuously recorded in real-time all-weather. Vehicle detection is carried out with ground-sensing coil and video detection. When the moving target exceeds the speed limit or the intersection signal is in the red light state, the (integrated) high-definition camera captures the illegal vehicle, and completely captures 3 pictures of the vehicle’s violation process. The picture clearly shows information such as signal light status, parking line location, illegal lane, license plate number of illegal vehicle, license plate color, body color, vehicle type, illegal time, location, vehicle speed and driving direction. All the captured data is sent back to the traffic police data center through the network for processing. Through this information, it is connected with the vehicle management warehouse in the corresponding area to analyze and obtain whether the current vehicle is a legal vehicle. At the same time, a database of illegal images and speed information is generated, and the data has a network query function. The high-definition red light electronic police system is widely used in urban crossroads, sidewalks, time-limited roads, main and auxiliary road entrances and exits, bus lanes, etc. It is used for effective evidence collection of illegal acts of running a red light. The system can provide information for public security departments to effectively combat speeding, robbery, blacklisted motor vehicle crimes, detect traffic accidents and escape cases, analyze traffic conditions, strengthen public security management and other illegal activities, and provide traffic management for local public security and traffic police departments. Important clues and basis.
Background:
In early May 1996, the Research Institute of Public Security and Transportation Administration of Beijing Municipal Public Security Bureau worked with us to test the first domestic “Red Light Automatic Camera” at the intersection of Xisi Road in Beijing and succeeded. In the same year, the Beijing Municipal Institute of Transportation Engineering Science applied for the establishment of the project, and the Science and Technology Committee allocated special funds to support the Beijing Institute of Transportation Engineering Science to cooperate with us in the research and development of the “video vehicle running red light automatic monitoring system”. After the successful development of the system, from 1996 to early 1998, the “video motor vehicle running red light automatic monitoring system” and “video motor vehicle speeding automatic monitoring system” were installed in Beijing, Jinan, Changsha, Fuzhou, Hangzhou, Xi’an, Luoyang, Qiqihar, Manzhouli and other places. Monitoring System”. Although news media such as television stations, radio stations, newspapers and magazines all over the country made a lot of publicity reports at that time, they used different words, such as “electronic eyes”, “hot eyes and golden eyes”.
Overview:
Electronic police explained purely physically: A typical “electronic police” is usually composed of image detection (vehicle sensing), shooting, acquisition, processing, transmission and management, auxiliary light sources, auxiliary brackets and related supporting equipment. There are mainly two application types, fixed and mobile, and two working modes, automatic and manual operation.
species:
Of course, there are three types of “electronic police”: film type “electronic police”, digital type “electronic police”, and video type “electronic police”.
As the perfect combination of video surveillance and intelligent transportation system, the electronic police system has always been the focus of development and attention from all walks of life. China’s electronic police system has ushered in greater opportunities and challenges from R&D to application. As an enterprise, as long as it follows the upcoming “General Technical Requirements for Automatic Recording System for Red Light Running” and “General Technical Requirements for Highway Vehicle Intelligent Monitoring and Recording System” standards, the electronic police system can realize data sharing, thereby realizing illegal transmission across the country. , To truly play the role of “regulating the order of traffic at intersections in China, ensuring the smooth flow of roads and preventing or even eliminating traffic accidents.”
The “electronic police” in China’s road traffic management system was born with the development of science and technology, and is a product of an era. As an effective means of modern road traffic safety management, it can quickly monitor, capture, and deal with traffic violations, quickly obtain evidence of violations, provide effective monitoring methods, and play an important role in improving urban traffic congestion. It has become a road An indispensable and important member of the traffic management team to give full play to its accurate and fair law enforcement role.
working principle:
Technology Introduction
1. The electronic eye uses a sensor line to sense the pressure from the car on the road, collects the signal to the central processing unit through the sensor, and sends it to the register for temporary storage (the data is valid during a red light cycle);
2. In the same time interval (in the red light cycle), if two pulse signals are generated at the same time, it is considered “effective”. Simply put, if the red light is at that time, your head wheel has passed the line, and then the rear wheel If there is no line, only one pulse is generated. When there are no two consecutive pulses, no photo is taken;
3. In some cases, some people crossed the line with the front wheel of the car and were afraid of being photographed, so he reversed the car again and returned to the line, but he was still photographed. What is the reason? It is because one pair of pulse signals are generated one after the other (the pair of pulses are generated in the same red light cycle), and I was shot n times because of this. But most of the induction coils of electronic police have a logical recognition function, and it is not necessary to take snapshots in this situation.
4. When the yellow light is on, the camera system will start after a delay of 2s; when the red light is on, the system has started; when the green light is about to turn on, the system will be turned off 2s in advance, mainly to prevent mistaking. So many taxi drivers know that they are almost ready to leave, and that`s the reason they are all right. But I suggest that you don’t do this, because the timing is more difficult to grasp.
Post-processing
After the image is downloaded and transmitted to the command center, the image needs to be registered, numbered, and announced, and then transmitted to the central computer database for various agencies to call.
System Features
Vehicle capture rate —–100%.
Recognition time—–about 1 second.
The license plate recognition rate is over 95% during the day and over 90% at night.
Applicable vehicle speed ——5-180Km/h.
Snapshot principle
There are two ways, one is to bury the induction coil underground, and to set up a digital camera on the crossbar to capture red light, and the other is to set up a camera to record real-time video of speeding and illegal parking. Either way, at least three pictures will be taken of the illegal vehicle, one is the momentary violation picture, the other is the number plate recognition picture, and the other is the panoramic picture. Either way, the camera is turned on 24 hours a day, and the picture retention time is generally one week.
Process
When the command center receives the picture, it compares the license plate number information with the information from the vehicle management station, so as to retrieve the comprehensive information of the vehicle, such as the owner, model, color, etc., and then the information processing personnel enters it into the website of the Beijing Municipal Public Security and Transportation Administration. In order to enable the owners of illegal vehicles to make inquiries.
Information loss
Not all illegal vehicles can be photographed. Only when the license plate picture is clear, the information entry personnel can input the illegal vehicles into the database for processing.
Shooting range
A camera usually shoots two lanes, a few can shoot three lanes, and they are usually set on the first and second lanes from left to right. Digital cameras have a wide shooting range, so most of the urban areas can capture all lanes in the same direction.
Work characteristics
1. Vehicle speed monitoring dzjz starts after the vehicle speed exceeds the specified 20km
2. The red light monitoring dzjc starts after the red light is on for 3 seconds
Pros and cons
Optical camera electronic police
Advantages: simple and reliable system, low maintenance, low cost, long life, clearer license plate photos, simple control unit, electronic flash fill light for night photos, and one camera can capture multiple lanes.
Disadvantages: The photos are in the form of film, the number of photos is small, the workload of manual film replacement is large, the film and photos need to be developed, the post-production cost is high, and the photos cannot be transferred. Cannot capture continuously.
Video camera electronic police
Advantages: The camera is an industrial-grade product that can take continuous snapshots. The system is composed of an industrial computer (or embedded computer) + image card + I/O card. Photos can be transmitted, and license plate numbers can be automatically identified after adding license plate recognition software. Has now transitioned from standard-definition cameras to high-definition cameras. Convenient for remote login and background maintenance.
Disadvantages: the red light cannot be identified under strong sunlight, the evidence is not very convincing, the LED light is used to fill the light, the effect of night photos is poor, and there are many invalid photos. The system is composed of multiple cameras. Each lane uses one camera to shoot the license plate. The panoramic view can share one camera. The inability to see the red light is the fatal problem of the system. In addition, the system is complex, poor reliability, large maintenance, high cost, short life, difficult to install and debug, and video electronic police all have phenomena such as high temperature crashes of intersection industrial computers or embedded computers.
Digital camera electronic police
Advantages: high photo pixels (4-10 million), clear photos, electronic flash fill light for night photos, a camera can capture multiple lanes, low cost, can best reflect the three elements of running a red light in a photo , The red lights, license plates, and stop lines are clear and defensible, and the evidence is strong. Photos can be downloaded at intersections, wired or wirelessly transmitted. The fixed-focus digital camera solution can adapt to the new electronic police requirements. It is a high-quality and low-cost solution with strong persuasiveness and conforms to the standards of the Ministry of Public Security. It adopts embedded computer control and the Linux operating system runs stably. Under the conditions of high temperature, high humidity and mechanical vibration at intersections, the system has good stability and reliability. Fixed-focus digital cameras are simple to transform, have good stability, low prices, and have a life span of more than three years.
Disadvantages: fixed-focus digital cameras cannot take continuous shots, while SLR digital cameras can take continuous shots. But the price of SLR digital cameras is 5-6 times that of fixed-focus digital cameras. The lifespan of the electronic flash is not as long as the LED fill light, and it needs to be replaced frequently (2-3 months), but the fill light effect of the electronic flash is the best.
Technical details:
Monitoring System
The red light violation monitoring system is a network-based distributed system. The system is divided into four parts: front-end video detection and capture system, intersection local data processing system, remote data transmission system, central data management and punishment system. The system is mainly installed at traffic intersections to monitor all-weather illegal motor vehicles running red lights. It can not only take photos of illegal vehicles, but also automatically judge and recognize the license plates and trajectories of illegal vehicles in real time.
Overspeed detection
In addition to running red lights, violations such as speeding on the road are also an important cause of traffic accidents. Using an overspeed detection system can handle this problem well. It is understood that the motor vehicle speeding detection system is a real-time response system. It uses video image processing technology to perform non-contact monitoring of vehicles on highway lanes to obtain operating status information such as speeding vehicle speeds, license plate numbers, and illegal photos. Each lane only Set up a CCD (camera) to detect and record the information of speeding vehicles on highways or urban roads accurately, stably and all-weather.
Vehicle inspection
The mobile vehicle inspection system is a real-time inspection system that integrates advanced technologies such as vehicle video detection, radar speed measurement, automatic license plate recognition, and real-time comparison of vehicle inspection databases. The system can perform speed measurement, license plate capture, identification and comparison of driving vehicles, and without affecting normal traffic, it can automatically inspect vehicles in violation of regulations in real time and effectively carry out traffic law enforcement. It is understood that the traffic police departments in many cities such as Beijing, Shanghai, Tianjin, Hefei, Changchun are equipped with similar mobile vehicle inspection systems, and the application effect is relatively good.
Reverse capture police:
The rear number plates of some vehicles are seriously defaced, and the rear number plates of some vehicles are installed improperly, causing the electronic police to fail to identify effectively. In response to such problems, a reverse electronic police that captures the number plate in front of the vehicle is installed, and the front and rear number plates of the vehicle are captured at the same time, which can solve the problem of vehicle license plate recognition. At the same time, the electronic police system will also impose severe penalties on traffic violations of inconsistent front and rear number plates, deliberate obstruction of the rear number plates, and failure to hang the rear number plates.
The electronic police system has been punishing large trucks for illegal acts entering the market in violation of the prohibition regulations. In the process of law enforcement, the traffic police department discovered that some large trucks had their rear number plates defaced and were not installed in accordance with regulations. The traffic violations of such vehicles were also the focus of the electronic police system. At present, the freight vehicle pass processing system has completed the docking with the electronic police system. Any freight vehicles that have not obtained a road permit and enter the prohibited area or road section in violation of regulations will be automatically identified by the electronic police system and will be punished off-site.

Whether the reverse camera captures illegal behaviors such as not wearing seat belts according to regulations, driving smoking, making calls, adding traffic jams, etc., is not a key issue. How to ensure driving safety is a fundamental issue worthy of attention. Although traffic violations such as not wearing seat belts, adding traffic jams, driving and smoking, and making phone calls may seem minor, traffic accidents caused by this are not uncommon. The traffic police department reminds traffic participants to consciously abandon bad traffic habits, drive safely and travel in a civilized manner.

From the perspective of development in recent years, with the country`s increasing environmental protection requirements, new energy has also been widely used, especially the installed capacity of photovoltaic and distributed energy power generation has begun to replace part of the proportion of old energy in my country`s energy structure.
In accordance with China’s relevant industrial policies, the national government takes an active and encouraging attitude towards the development of the photovoltaic industry, supports grid-connected photovoltaic power generation, and has issued relevant preferential policies, and the establishment of a distributed grid-connected photovoltaic power plant system can have a protective effect on the environment , Save energy, reduce emissions and other good effects. The design scheme of distributed grid-connected photovoltaic power station system needs to be standardized and standard. It is not only necessary to ensure that the distributed grid-connected photovoltaic power station system can be used effectively, but also the efficiency of distributed photovoltaic system and the efficiency of distributed grid-connected photovoltaic power station system. Design schemes, protection and prevention, etc. are improved, so based on the above reasons, it is very necessary to analyze the design scheme of distributed grid-connected photovoltaic power station system.
Tools/Materials:
1. Calculator
2. Parameter report
3. Tape Measure
4. Measuring tape
5. Multimeter
Method/Step:
1. Calculate the capacity of the system;
2. Determine the battery board (category, parameter, quantity, etc.);
3. Estimate the string design (preliminarily estimate the size of the box);
4. Determine the number and size of the combiner box;
5. Select the cable type, quantity and size;
6. Choose the inverter model, quantity and size;
7. Determine the number and size of grid-connected cabinets;
8. Design a monitoring system (with or without a large LCD screen, consider the power supply);
9. Determine the fixed installation form of the components;
10. Preliminarily planned equipment installation location and equipment installation quantity
System Components:
Rooftop solar photovoltaic power station systems generally form multi-level confluence, inverter, pressurization, etc. through rooftop photovoltaic module arrays, combiner boxes, DC distribution cabinets, low-voltage AC cabinets, inverters, step-up transformers, high-voltage AC cabinets, and cables. Grid-connected system composition. The photovoltaic array combiner box can carry out an orderly maintenance, convergence and lightning protection function maintenance device for the solar cell components. This device can ensure that the photovoltaic system is easier to separate the circuit during maintenance and inspection. When the photovoltaic module has a problem, try to avoid the number of components that are removed from the system. It can be regarded as the confluence facility of the photovoltaic power generation system on the DC side. The photovoltaic array combiner box is installed outdoors on the roof photovoltaic module square array field. After the photovoltaic module array uses the combiner box to carry out the confluence outdoors, it is connected to the DC power distribution cabinet in the machine room through the cable to implement the second confluence. The DC power distribution cabinet sends the DC power after the second confluence to the grid-connected inverter through the cable, and the grid-connected inverter converts it into a sine wave current with the same phase and frequency as the AC grid, and then feedback after boosting Back to the grid to complete the grid-connected power generation effect.
Installation of photovoltaic modules:
Photovoltaic modules are combined by a large number of bulk crystalline silicon cells or thin-film cells. Installed on the roof, they can convert the received solar radiation into electrical energy. Due to the obstacles of material research and technology, it is very difficult to improve the conversion efficiency of solar cells. Therefore, the installation of photovoltaic modules is an effective measure to improve the efficiency of distributed grid-connected photovoltaic power plants. The installation of photovoltaic modules should be based on factors such as the latitude and longitude of the urban area where the project is located, geography, geology, and architectural direction, combined with on-site development, so that the modules are exposed to sunlight as much as possible. In addition, for its installation, it is mainly determined from the inclination and spacing.
Installation inclination angle of photovoltaic modules:
Because there is an angle between the equatorial plane of the earth and the ecliptic plane, the sun`s direct point of radiation changes between the Tropic of Cancer and the Tropic of Cancer within a year, and the maximum angle of solar radiation received by a site in each season will also change. Therefore, in order to make the plane of photovoltaic modules receive the maximum amount of solar radiation for a long time, the inclination angle of the photovoltaic module installation can not only be based on the latitude value, nor can it be compared with the angle of the maximum amount of solar radiation when the solar radiation is lowest on the horizontal plane. Set as the inclination angle of the module. If this is done, the solar radiation from the module plane will be reduced in summer. The installation inclination angle of photovoltaic modules should be specified according to the average annual solar radiation on the different inclination planes in various regions.
Precautions:
· Calculation data adopt conservative data
· The calculation requirements are more accurate

“Lithium Battery” is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become the mainstream.
Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and its safety, specific capacity, self-discharge rate, and performance-price ratio are superior to those of lithium-ion batteries. Due to its own high-tech requirements, only a few companies in a few countries are producing such lithium metal batteries.
Safeguard
After the lithium battery cell is overcharged to a voltage higher than 4.2V, side effects will begin to occur. The higher the overcharge voltage, the higher the risk. When the voltage of the lithium battery cell is higher than 4.2V, the number of lithium atoms remaining in the positive electrode material is less than half. At this time, the cell often collapses, causing a permanent decrease in battery capacity. If you continue to charge, since the cell of the negative electrode is already filled with lithium atoms, subsequent lithium metal will accumulate on the surface of the negative electrode material. These lithium atoms will grow dendrites from the surface of the negative electrode toward the direction of the lithium ions. These lithium metal crystals will pass through the separator paper and short-circuit the positive and negative electrodes. Sometimes the battery explodes before the short circuit occurs. This is because during the overcharging process, the electrolyte and other materials will crack to produce gas, causing the battery shell or pressure valve to swell and rupture, allowing oxygen to enter and react with the lithium atoms accumulated on the surface of the negative electrode. And then exploded.
Therefore, when charging a lithium battery, the upper voltage limit must be set so that the battery life, capacity, and safety can be taken into account at the same time. The ideal upper limit of the charging voltage is 4.2V. There is also a lower voltage limit when discharging lithium batteries. When the cell voltage is lower than 2.4V, some materials will begin to be destroyed. And because the battery will self-discharge, the longer it is left, the lower the voltage will be. Therefore, it is best not to stop when the battery is discharged to 2.4V. During the period when the lithium battery is discharged from 3.0V to 2.4V, the energy released only accounts for about 3% of the battery capacity. Therefore, 3.0V is an ideal discharge cut-off voltage. When charging and discharging, in addition to the voltage limit, the current limit is also necessary. When the current is too large, lithium ions will not have time to enter the cell and will accumulate on the surface of the material.
After these lithium ions obtain electrons, they will produce lithium atom crystals on the surface of the material, which is the same as overcharging, which is dangerous. If the battery casing ruptures, it will explode. Therefore, the protection of lithium-ion batteries must include at least three items: the upper limit of the charging voltage, the lower limit of the discharge voltage, and the upper limit of the current. Generally, in the lithium battery pack, in addition to the lithium battery core, there will be a protective board, which mainly provides these three protections. However, these three protections of the protection board are obviously not enough, and there are still frequent explosions of lithium batteries around the world. To ensure the safety of the battery system, the cause of the battery explosion must be analyzed more carefully.
Cause of explosion
1. Large internal polarization;
2. The pole piece absorbs water and reacts with the electrolyte.
3. The quality and performance of the electrolyte itself;
4. The amount of liquid injected cannot meet the technological requirements when injecting liquid;
5. In the assembly process, laser welding has poor sealing performance, and air leakage when measuring air leakage;
6. Dust and pole piece dust are likely to cause micro short circuits first;
7. The positive and negative plates are thicker than the process range, making it difficult to enter the shell;
8. The problem of liquid injection sealing, poor sealing performance of the steel ball, resulting in air bulging;
9. The shell wall is too thick in the incoming shell material, and the shell deformation affects the thickness;
10. Excessive ambient temperature outside is also the main cause of explosion.
Conductive layer:
Conductive coating is also called pre-coating. In the lithium battery industry, it usually refers to a conductive coating applied to the surface of the positive electrode current collector-aluminum foil. The aluminum foil coated with conductive coating is called pre-coating aluminum foil or coating for short. Layer aluminum foil, its earliest experiments in batteries can be traced back to the 1970s, and with the development of the new energy industry, especially the development of lithium iron phosphate batteries, it has become a hot new technology or new material in the industry.
The conductive coating can effectively improve the adhesion of the pole piece in the lithium battery, reduce the amount of binder used, and significantly improve the electrical performance of the battery. The products of large foreign companies will not be introduced. Let me introduce the only domestic product that is promoted in the market and has independent intellectual property rights-WX112, which is developed and produced by Shanghai Zhongxing Paineng Energy Technology Co., Ltd., a subsidiary of Zhongxingxin. According to the samples received, the technical requirements such as full coating, margins, and gaps can all be achieved. The performance is as follows:
1. Contact resistance decreased by 40%
2. Reduce the amount of adhesive by 50%
3. Under the same magnification, the battery voltage platform increases by 20%
4. The adhesion between the material and the current collector is increased by 30%, and there will be no delamination after long-term circulation
Carbon coated aluminum foil:
Carbon-coated aluminum foil is made of conductive carbon-based composite slurry and high-purity electronic aluminum foil, which is made by a transfer coating process.
Scope of application
Power type lithium battery with fine particle active material
The positive electrode is lithium iron phosphate
The positive electrode is fine particle ternary/lithium manganate
Used for supercapacitors, lithium primary batteries (lithium, lithium manganese, lithium iron, button type, etc.) instead of etching aluminum foil
effect
Suppress battery polarization, reduce thermal effects, and improve rate performance;
Reduce the internal resistance of the battery, and significantly reduce the dynamic internal resistance increase in the cycle process;
Improve consistency and increase the cycle life of the battery;
Improve the adhesion between the active material and the current collector and reduce the manufacturing cost of the pole piece;
Protect the current collector from being corroded by the electrolyte;
Improve the high and low temperature performance of lithium iron phosphate batteries, and improve the processing performance of lithium iron phosphate and lithium titanate materials

The security monitoring system uses optical fiber, coaxial cable or microwave to transmit video signals in its closed loop, and constitutes an independent and complete system from camera to image display and recording. The security monitoring system can reflect the monitored objects in real time, vividly and truthfully, and can replace manual monitoring for a long time in harsh environments and record it through a video recorder. At the same time, the alarm system equipment will alarm for illegal intrusion. At the same time, the alarm system equipment alarms the illegal intrusion, and the generated alarm signal is input to the alarm host, and the alarm host triggers the monitoring system to record and record.
system introduction:
The security monitoring system uses optical fiber, coaxial cable or microwave to transmit video signals in its closed loop, and constitutes an independent and complete system from camera to image display and recording. It can reflect the monitored object in real time, vividly, and truthfully. It not only greatly extends the observation distance of the human eye, but also expands the function of the human eye. It can replace manual long-term surveillance in harsh environments, allowing people to see Everything that actually happened to the monitored site was recorded by a video recorder. At the same time, the alarm system equipment alarms the illegal intrusion, and the generated alarm signal is input to the alarm host, and the alarm host triggers the monitoring system to record and record.
System Components:
Video Security Monitoring System (VSCS) refers to an electronic system or network that uses video detection technology to monitor fortified areas and displays and records on-site images in real time. It mainly includes four parts: front-end equipment, transmission equipment, processing/control equipment and recording/display equipment.
The security system can integrate all the subsystem control equipment in this solution, such as digital video system, anti-theft alarm system, and access control system. On the basis of not affecting the operation of each subsystem, the unified management platform is used to realize integrated interface management, achieve unified operation, unified linkage, unified maintenance, etc., which greatly improves the management efficiency and level of the owner. It can be said that the future integrated development trend of the entire security industry is mainly composed of a security center system, a terminal system and a transmission network.
System parameters:
Image quality level: no less than four of the five image rating levels.
Horizontal resolution: color not less than 400 lines
Gray level: no less than 8
Signal to noise ratio: 40dB
Composite video signal level value: 1VP-P±3dB
security system:
1. Anti-overstepping alarm at the perimeter of the community
The design of the perimeter anti-overstepping alarm system adopts the perimeter anti-overstepping active infrared anti-radiation alarm system, which actively detects, locates and alarms illegal intruders in the surrounding area, and tells the security personnel which pair of shooting areas is happening, and prompts the security personnel to deal with it. . The community adopts a combination of infrared cameras erected on the fence and infrared beams for defense. Combining the site conditions and Party A`s suggestions, the number of shots reached 50 pairs, and the situation of each alarm point will be displayed on the digital map, and the surveillance camera can point to the problem location to view.
2. CCTV surveillance
The main channel of the closed-circuit television monitoring system and the regional closed-circuit television monitoring are multiplexed to alarm when the situation occurs. Outdoor color omnidirectional three-variable cameras are used, cameras with different illuminances are used, and infrared night vision cameras need to be installed in different parts. The design system adopts the hard disk recording system of alarm linkage recording as the alarm image storage, and adopts the large-scale video matrix as the central control system.
3. Intercom and all-in-one card (including home security)
It is mainly aimed at effective management and control of the flow of visitors in residential areas, residential buildings and residents. The peripheral visiting equipment is formed by setting the management center machine and the door machine of the residential building. The indoor machine design of the residents selects the household extension with the networking function. In this way, the functions of the system can be completed and expanded, and the needs of different households can be met and the investment for setting up different system functions can be saved. This extension system can not only meet the visual intercom function, but also realize the function of calling the property management center. The functions that can be realized in the intercom part are: building visual intercom, smart home security, community announcement, photo message, home appliance control, lighting control, three-meter query, community service, home assistant, etc. Full Chinese interface, graphic display, touch screen operation lock control, monitoring, and Hyun ringing, door bell, call door guard, call center, emergency help, wired and wireless zone alarm, MMS sending and receiving, call transfer, care function, mute and do not disturb , Support touch screen operation. The one-card part mainly considers practicality, durability and convenience for users.
System Features:
The remote security monitoring system is based on the digital network as the transmission medium and the core of the network video server. Comprehensive use of digital video processing technology, automatic control, network transmission technology, artificial intelligence and other technologies, not only has the fast video processing capabilities of ordinary security monitoring systems, digital information anti-interference capabilities, and easy to quickly query and record advantages, but also rely on the network , Exploit the advantages of broadband network, and connect the surveillance video center with any point that can be connected to the network through the IP network to achieve the remote, centralized and real-time effect of the ideal closed-circuit surveillance system.
1. The structure is clear and simple: the monitoring host realizes many functions of the video matrix, screen splitter and other equipment in the analog system through the Xiangshi network video centralized monitoring system management software, and realizes the recording function through the computer hard disk, which greatly simplifies the system structure , High integration.
2. Easy management and application: As the digital monitoring system is based on computers and network equipment, most of the system control and management functions are realized by computers, and there is no need to simulate many complicated equipment in the system, which reduces the management work intensity of operation and maintenance personnel.
3. Powerful operation functions: multiple display modes; multi-screen intelligent switch round tour; multiple early warning modes; multiple recording methods such as real-time, timing, alarm trigger, and start and stop at any time; picture capture printing; intelligent fast video playback query, etc. Wait.
4. Simple monitoring and viewing: Because the fully digital network video centralized monitoring mode is based on the characteristics of the network, there is no need to increase equipment investment. The remote or local monitoring center on the network can monitor, record or replay one or more monitoring scene images in real time, authorized The Internet-connected computer can also realize the monitoring function, avoiding the inconvenience and lack of supervision and management caused by the geographical interval.
System layering:
For the security monitoring system, according to the different functions of each part of the system, we divide the entire security monitoring system into seven layers-presentation layer, control layer, processing layer, transmission layer, execution layer, support layer, and acquisition layer. Of course, due to the increasing integration of devices, for some systems, some devices may exist in the system as multiple layers at the same time.
Installation principles:
With the enhancement of security awareness, video surveillance systems are slowly entering the homes of ordinary people. Video surveillance solutions are also emerging in endlessly, so what principles need to be followed when installing a surveillance system? The following 8 surveillance installation principles must first be considered when installing a surveillance system:
1. Real-time: The real-time of the monitoring system is particularly important. It is precisely because of the real-time nature of the monitoring system that the monitoring system is so necessary.
2. Security: The monitoring system has safety precautions and confidentiality measures to prevent illegal intrusion into the system and illegal operations.
3. Scalability: The monitoring system equipment adopts a modular structure. The system can easily and flexibly expand in hardware and software when the monitoring scale, monitoring object, or monitoring requirements are changed, that is, there is no need to change the network structure and main functions. Hardware and software equipment.
4. Openness: The monitoring system follows the principle of openness. The system provides interfaces and tools in software, hardware, communications, networks, operating systems, and database management systems that comply with international standards, so that the system has good flexibility and compatibility. , Scalability and portability. The entire network is an open system, compatible with the products of many monitoring manufacturers, and can support secondary development.
5. Standardization: The equipment and technology used in the monitoring system comply with international standards. This can give you a peace of mind.
6. Flexibility: The monitoring system has flexible networking methods and flexible system function configuration, which can make full use of the existing video monitoring subsystem network resources. The system integrates other subsystems into it, which can meet the business needs of different monitoring units, with comprehensive software functions and easy configuration.
7. Advancement: The monitoring system is as advanced as possible under the premise of satisfying reliability and practicability. The entire system remains advanced for ten years after its completion, and the equipment and technology used in the system can adapt to future development and can be easily upgraded. It will become an advanced security system that adapts to future development, has high reliability, good confidentiality, easy network expansion, strong connection data processing capabilities, and easy system operation and operation.
8. Practicability: The video surveillance system has the ability and level to complete the functions required in the project. The system conforms to the requirements of relevant domestic and foreign regulations that are actually required by this project, and is easy to implement and easy to operate. From the user’s point of view, make full use of existing resources, minimize system costs, and enable the system to have a higher cost-performance ratio.

The intelligent lighting system is a system for intelligent control and management of lighting. Compared with traditional lighting, it can realize the management of soft start, dimming, one-key scene, one-to-one remote control, and full on and off of partition lights, and it can be used Remote control, timing, centralized, remote and other control methods, and even use a computer to perform advanced intelligent control of the light, so as to achieve the energy-saving, environmentally friendly, comfortable and convenient functions of intelligent lighting.
System functions
1) Centralized control and multi-point operation function: the terminal in any place can control the lights in different places; or the terminal in different places can control the same light. Use various methods to manage the lighting control system, touch screen, network, PDA, telephone so that users can use the easiest way to control the equipment in their room at any time and any place (even in the swimming pool).
2) Soft start function: When the light is turned on, the light gradually changes from dark to bright. When the light is turned off, the light gradually changes from bright to dark to prevent sudden changes in brightness from irritating the human eyes, giving a buffer to the human eyes and protecting the eyes. And avoid the impact of high current and high temperature mutation on the filament, protect the bulb and prolong the service life.
3) Light and shade adjustment function: Whether you are meeting guests, watching TV, listening to music, or with your family, or thinking alone, or even tasting whiskey, adjusting the brightness of different lights can create comfort and tranquility for you , Harmonious, warm atmosphere, deeper experience of life, soft light can give you a good mood, less and dark light helps you think, and more and bright light makes the atmosphere more enthusiastic. These operations are very convenient. You can press and hold the local switch to adjust the brightness and darkness of the light. You can also use a centralized controller or remote control to adjust the brightness of the light by pressing the key.
4) Full-on, full-off and memory function: The lights of the entire lighting system can realize the functions of one-key full-on and one-key full-off. When you fall asleep or leave home, you can press the all-off button once, and all the lighting equipment will be turned off. It saves you the trouble of running around all the rooms.
5) Timing control function: through the schedule management module, the timing of the lights can be defined on and off. For example, at 7:00 every morning, slowly turn on the lights in the bedroom to a suitable brightness; in the middle of the night, automatically turn off all lights.
6) Scene setting: For fixed-mode scenes, you don’t need to switch and dim the lights one by one. You can control a group of lights by pressing a key after only one programming. This is the scene setting function. Only one touch operation can realize the conversion of multiple lighting scenes; you can also get the desired combination of lighting and appliances, such as home mode, away from home mode, meeting mode, dining mode, theater mode, couple night Talk, night mode, etc.
7) Local switch: you can directly control the local lights according to your usual habits; according to your needs, the switch can be arbitrarily set to control objects, such as the button in the hall can be used to turn off all the lights; this way, when you leave home , All lights can be turned off with a single tap, which is energy-saving, safe and very convenient.
8) Infrared and wireless remote control: In any room, use an infrared handheld remote control to control the on-off state and dimming state of all networked lamps (no matter whether the lamps are in the room); you don`t need to turn on the lights after entering the room. Before entering any room, you can use the remote control to turn on the lights. From then on, you no longer have to look for light switches in the dark; depending on the size of the house, the model of the remote control is also different, such as: four-position remote control is applicable In two bedrooms and one living room, the six-position remote control is suitable for three-bedroom and one living room. In addition, there are eight, ten, and twelve-position remote controls. The sixteen-position remote control is suitable for duplex and villa use.
9) Telephone remote control: through any ordinary telephone or mobile phone, remote control of lights or scenes can be realized. This function can be used to simulate the light situation of the owner at home before returning at night to confuse possible thieves;
10) The lighting system also has a power-off self-locking function, that is, when your home is powered off, all the lights will remain off after the power is received. The intelligent lighting system can also be linked with the security system. When an alarm occurs, the lights on the balcony of your home will keep flashing and alarm.
main feature:
1. Through the remote control, you can easily manage all the smart switches, sockets, and curtains in the home to achieve wireless control and scene control; the scene arrangement is completely set according to the user’s hobby, no other tools are required, and the remote control panel is freely arranged on the remote control panel, which is convenient and fast , Can be adjusted anytime and anywhere as needed.
2. The telephone remote voice control can be realized through the telephone remote controller, and the control equipment can be a fixed telephone or a mobile phone. The super power of Botron’s home intelligence enables you to conveniently manage home automation equipment no matter where you are. It is convenient and practical, and reflects the best combination of technology and humanities.
3. The timing control of the light can be realized through the scene remote control.
4. The dimming and dimming state memory function of the smart switch is energy-saving and convenient for scene setting.
5. The radio frequency signal can penetrate the wall, so it can be used no matter which room in the home. Performance characteristics: Control street lamp switch, brightness adjustment, current, voltage collection, theft alarm, etc., and reserve functions such as temperature collection and lamp pole tilt detection.
The street light manager is divided into modular type (in the built-in lamp) and plug-in type (in the built-in lamp pole), which can meet the needs of street lamp enterprises and engineering enterprises respectively.
1. Communication connection through wireless ad hoc network, real-time online collection of information;
2. High-performance embedded microprocessor technology, advanced energy measurement dedicated chip, large-capacity memory technology; 3. Self-diagnosis and self-recovery functions;
4. Power-off data retention function;
5. Remote or on-site automatic dimming realizes energy-saving control of street lights on and dark lights;
6. The wireless routing function realizes the relay function of communication.
At present, the degree of informatization of urban road lighting management in my country is still relatively low. System management software based on the Internet of Things and cloud computing provides a set of comprehensive solutions for the informatization construction of street lighting management departments.
1. Automatic street lamp inspection: The monitoring center can perform automatic inspection on street lamps installed with street lamp monitors, report faults and automatically generate repair reports;
2. Street lamp inspection and control: It can turn on, turn off, adjust the brightness and other functions of street lamps installed with street lamp monitors in real time, or preset control schemes to make street lamps light up in accordance with the preset schemes.
3. Equipment management: realize computerized information management of street lamp equipment such as light poles, lamps, wires, control boxes, transformers, electric meters, switches, monitors, etc., with functions such as equipment installation, scrapping, maintenance, replacement, and storage.
4. Multimedia function: With picture library management function and video management function, the management is more intuitive, visualized and friendly.
5. GIS geographic information system: It has the functions of terrain, facility space, administrative divisions, blocks, roads, buildings, water systems, pipe ditches, street light lines, control lines, and laying conditions.
6. Auxiliary analysis module: It has the functions of statistics, reports, analysis, query, load calculation, real-time meter reading, electricity consumption analysis, cable length calculation and so on.
7. Web information publishing module: realize seamless connection with website and carry out remote management function.
The research report shows that ultra-low power consumption intelligent lighting system is expected to become one of the main development trends in the lighting industry.