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Intelligent control system and research of solar LED street light
2020 / 12 / 01
The solar LED street light system is an independently operated photovoltaic system, which consists of six parts: solar battery, storage battery, LED street light, charging circuit, discharge/drive circuit, and controller. The battery is one of the important parts of the hybrid system in the solar LED street lamp system, so its remaining charge capacity (SOC) also has a significant impact on the stability of the system. The solar LED street lamp system is under the control of the controller. During the day, the solar battery charges the battery through the charging circuit, and the battery discharges at night to drive the LED street lamp, so the design of the controller is very important. If the battery is often over-discharged or over-charged, the battery life will be greatly shortened. In response to this problem, the segmented multi-point monitoring method can be used to monitor the charge/discharge method of the remaining charge capacity (SOC) of the battery. During the discharging process, just like the controller during the charging process, the segmented multi-point monitoring can be used in different Different widths of PWM signal output control are used in the different stages, which effectively avoids over-discharge. Finally, the hardware of the solar controller and the control software of the system are designed. When a large number of independent operation of solar LED street lights are used, it is necessary to know the operating status of each street light in time and accurately, so a networked solution based on CAN bus is designed. The design realizes the CAN bus hardware interface on the street lamp controller, and also realizes the host computer monitoring.
LED traffic lights related information
2020 / 11 / 29
LED traffic lights Basic Information: LED traffic lights are light and color signals that are alternately replaced at a specified time. They are usually installed at intersections or other special places to assign roadway rights to vehicle drivers and pedestrians, and to control traffic control facilities for stopping and turning. . Located at a fork in the road or other necessary places. Signal lights are an important part of traffic signal command and the basic language of road traffic. Traffic lights are composed of red lights (indicating no traffic), green lights (indicating traffic allowed), and yellow lights (indicating warning). Divided into: motor vehicle signal light, non-motor vehicle signal light, crosswalk signal light, lane signal light, direction indicator light, flashing warning light, road and railway intersection signal light. It is widely used in highway intersections, bends, bridges and other dangerous sections with hidden safety hazards, to direct drivers or pedestrians to traffic, promote smooth traffic, and avoid traffic accidents and accidents. Function classification: Traffic control lights use circular red, yellow, and green lights and arrow patterns to assign the right of way for traffic in different directions in a time-changing manner; or by circular lights containing only red and green, To control traffic in one-way wheels. It is generally located at a fork in the road or on a road with one-way wheel release control. According to the operation mode: Timing signal lights, traffic sensor lights, traffic adjustment lights, pedestrian traffic lights are used in conjunction with traffic control lights, with square red and green lights with patterns of "standing pedestrians" and "walking pedestrians" to control pedestrians crossing the street. A fork in the road or the middle of the road. According to the operation mode:
Ten advantages of solar street light controller
2020 / 11 / 27
Ten advantages of solar street light controller: 1. With discharge rate correction control, different discharge rates have different termination voltages, suitable for the inherent characteristics of batteries. 2. Utilizing digital LED display and settings, all settings can be completed by one-key operation, convenient and intuitive to use 3. All controls use industrial-grade chips and compact components, which can operate normally in cold, high temperature and humid environments. At the same time, the crystal oscillator is used to control on time to make the time control more accurate. 4. The charging circuit adopts a dual MOS series control circuit, which reduces the circuit voltage loss by nearly half compared with the circuit using a diode. The charging adopts PWM trance control, which greatly improves the charging efficiency and greatly increases the power consumption time. 5. Two load working modes: pure light control, normally open mode, load on and off time is adjustable. 6. Parameter setting has the function of power-down retention, that is, important data such as system mode and control parameters are retained inside the chip, and will not be lost after power-off, making adjustments more convenient and system work more reliable. 7. Scientific battery management method. When the battery is over-discharged, the battery is charged with a boost voltage and a compensation maintenance is performed. When in normal use, the direct charging and floating charging are used to charge the battery to enhance the service life of the battery; At the same time, it has high-precision temperature compensation, which makes charging control more accurate. 8. With overcharge, overdischarge, overload protection, weird electronic short circuit protection and anti-reverse connection protection, all protections will not damage any parts, and will not burn ins
Solar lighting will become the new target of the lighting industry
2020 / 11 / 26
Solar lighting will become the new target of the lighting industry. Solar lighting is an application of photoelectric conversion technology and a representative of the new energy industry. It has the benefits of energy saving, environmental protection, safety, no wiring, sophisticated installation, intelligent control, and the ability to change the location as needed. In cities with energy shortages, power cuts, and remote areas where electricity is difficult, it has a strong scalability. The solar power lighting system currently used is developed in accordance with China's national conditions and people's conditions, and the price is relatively high. The main types of solar lamps are solar street lights, solar garden lights, solar lawn lights, solar landscape lights, and solar signal lights. It is especially suitable for installation in remote areas such as Gobi, mountainous areas, grasslands, etc. that are inconvenient to connect to city electricity, such as Yunnan, Gansu, Xinjiang, Tibet, Inner Mongolia and other places. As an infinite renewable energy source, solar energy is the most ideal new energy source for mankind. In the future, it is a general trend to gradually replace the conventional energy produced and live in cities. Due to the inexhaustible rise in the prices of international conventional energy coal and oil, domestic energy supply is tight, many cities are presenting an environment of power cuts, and the development of alternative new energy has risen to the height of national energy strategy security. Many road lighting began to consider using solar street lights, solar street lights are also the first choice for lighting products in the new countryside. From a long-term perspective, the prospects of the solar lighting industry are very good. In recent years, the state has issued a series of favorable policies to support the growth of renewable energ
Introduction to Solar Street Lights
2020 / 11 / 25
Nowadays, solar energy has become a recognized clean and green energy, and it is gradually applied to people's livelihood to benefit mankind. Among them, solar street lights are one of the solar energy applications. The solar street light system consists of solar panels, controllers, storage batteries or lithium batteries, lamps, light poles, cables and other parts. What is the future of solar street lights? The answer is yes. From the perspective of economic benefits, according to calculations, based on the calculation of 5m street lights and 8m street lights, after adopting solar street lights, 5m street lights and 8m street lights save about 2,290 kilowatt-hours of electricity each year, and the electricity bill saves 1,633 yuan. It has a good profit margin. From the perspective of energy saving and environmental protection, its electricity comes from solar power generation, which does not consume traditional energy, and is energy-saving and environmentally friendly. In the future, the solar street lamp industry will receive support and promotion from many parties due to its obvious social and economic benefits. The market scale of solar street lamps may show a rapid growth trend. When many customers first come into contact with solar street lamps, they always like to search the Internet for solar street lamp manufacturers and their rankings. Since 2005, although solar street lights have been used more and more, especially in the vast rural areas, there are still many shortcomings, so far no large-scale production has been used, so many manufacturers are not For stocking, customers usually place orders, and produce according to customer requirements.
Types of conventional road lighting poles and lamp arms
2020 / 11 / 24
According to the types of lamps used in road lighting design and the height of the poles, road lighting poles can be divided into three categories: conventional poles, medium poles, and high poles. Conventional light poles can be divided into wooden poles, reinforced concrete poles, steel poles and glass fiber reinforced plastic poles according to the material. The poles for medium and high pole lighting are mainly made of steel. The decorative courtyard lamps are summarized and casted by aluminum alloy lamps. Aluminum or cast iron poles, ceramic poles, etc. The lamp arm (frame) on the top of the pole has forms such as single pick, double pick and dobby. The most widely used road lighting is the steel pole, which has the advantages of beautiful, strong and durable. This chapter mainly introduces steel poles. 1. Steel poles can be divided into equal-diameter poles, cones, and polygonal cones. The common typical cross-sectional shapes are hexagons, octagons, and circles. Usually, the whole steel plate is cut and formed by folding at one time. The light pole taper ratio is generally 10‰~12.5‰, using high-quality steel plate such as Q235 type, and the wall thickness is ≥3.5 or 4.0mm. The advantages of the tapered steel pole are reasonable structure, novel and beautiful appearance, and convenient construction and installation. 2. The installation methods of steel poles are divided into three types: direct-buried, flanged and tiltable. The direct-buried type is simple to install. The entire light pole is directly buried in the earth pit, returned to the soil and tamped or fixed by concrete pouring on site. The disadvantage is that the light pole must be re-poured for maintenance and updating. The flange-type light pole is connected by the bottom flange of the light pole and the prefabricated reinforced concrete foundation foot bolts. The installation is extremely simple, and the rep
Failure and avoidance of solar lights
2020 / 11 / 23
1. The fixing strength of the ground cage is too small, which makes the installation of the lamp unstable. Reason analysis: there is no professional foundation designer; the quality of the ground cage production personnel is not strict; the ground cage is cut corners and shoddy. How to avoid: Professional lighting designers to ensure design quality, high-quality production personnel plus quality control internal inspections, strictly control the quality of the cage welding. From raw material quality control to finished product quality inspection, to ensure that the product meets the requirements. 2. The foundation structure design is unreasonable, causing the battery to soak. Reason analysis: There is no professional designer to carry out reasonable foundation design, and the on-site construction personnel have poor ability to control the site and cannot adjust the foundation position according to the actual situation. How to avoid: Excellent professional designers carry out foundation structure design based on actual investigations, and qualified on-site construction teams can carry out reasonable construction based on on-site factors. 3. There is no insulation measures in the battery compartment, and the battery capacity decreases. Reason analysis: The designer has no concept of battery insulation, and the construction staff is not high in professional quality, and cannot be constructed in full accordance with the technical requirements. How to avoid: Excellent designers can carry out special treatment according to local climate conditions, and professional construction teams strictly follow standardized operating procedures for construction. Also need: 4. A qualified installation and construction team ensures that problems in the installation process are discovered in time and can propose solutions. 5. Professional designers must keep abreast of the site conditions in time, and site insp
How to clean solar street lights
2020 / 11 / 23
In recent years, solar street lights have been at a peak. As the industry gradually matures, more and more solar street lights are in competition. In order to meet the needs of the new situation and new environment, street lamp manufacturers have developed and produced various forms based on the principle of harmony and unity of lighting and environment, and organic combination of lighting and beautification. As the price drops, the development of lights has also improved. So what is the difference between solar street light cleaning and ordinary street light? Let`s take a look at how to clean solar street lights. First, the ground cage After the solar street light is installed on the ground, people still need to reinforce it. The street light is originally made of extremely strong stainless steel, so its surface will not be damaged by wind and sun. However, after considering the wiring problem, if the user wants to ensure that the solar street light circuit will not be damaged due to long-term use, the ground cage used to fix the street light must be treated rigorously. The skeleton made of stainless steel is wrapped around the foundation (foundation) of the solar street light, so as to ensure that the use of the solar street light can maintain the most stable state. Second, the battery The reason why the battery is taken into consideration is very simple. As a lighting facility that can absorb solar radiation autonomously, in the cloudy and rainy season, it undoubtedly cannot rely on the absorption of radiation to meet the lighting needs, so solar street lights also have a demand for batteries That's why. When considering the use and purchase of basic components of solar street lights, the power supply capacity and continuous battery life that the street light battery can play (showing its inherent ability) need to be considered. Although sol
Solar parallel-off power grid system
2020 / 11 / 20
What is the difference between solar power generation, off-grid and grid-connected: Off-grid system means that the electricity generated by the photovoltaic power generation system is stored in the battery and converted into AC power through the inverter for direct use by the electrical equipment, or directly supplied to the DC electrical equipment without inverter, and is not connected to the grid . Grid-connected means that photovoltaic power generation is converted to AC through an inverter, and connected to the grid through a boost or direct low-voltage side, and the grid dispatches and uses the electric energy. What is the principle of photovoltaic off-grid power generation system: The working principle of off-grid photovoltaic power generation system is very similar to that of grid-connected photovoltaic power generation system. The only difference is that the power output from the off-grid system is directly consumed and used instead of being transmitted to the public grid. Solar power generation, thermal power generation and photovoltaic power generation. Regardless of production and sales, development speed and development prospects, CSP can not catch up with photovoltaic power generation. It may be that photovoltaic power generation is more popular and there is less exposure to CSP. Generally speaking, solar power generation often refers to solar photovoltaic power generation. Photovoltaic power generation is based on the principle of photovoltaics. Solar cells are used to directly convert solar energy into electrical energy. Whether it is used independently or connected to the grid, the photovoltaic power generation system is mainly composed of solar panels (components). Controller and inverter three Most of the components. They are mainly composed of electronic components. No mechanical parts are involved. Therefore, photovoltaic power gener
Carry out the energy saving of solar street lights to the end
2020 / 11 / 19
The global energy crisis, but inexhaustible free solar development and application has been widely recognized by the international community. Moreover, my country is also a big energy country, and under the support of policies, photovoltaic power generation is gestating huge business opportunities. The Fifth Plenary Session of the 16th Central Committee of the Communist Party of China began to accelerate the "New Countryside Construction". At present, my country's solar new energy utilization market accounts for less than 10% of sales, which is far below the 50% of the international market. Solar power generation will become the dominant energy source in rural areas in the future and become an explosive growth. The best time for photovoltaic power generation has arrived. Considering from the starting point of being a start-up, it must be energy-saving benefits. In today's society, low-carbon and environmental protection has become a global consensus. Our country is also advancing with the times and vigorously promoting energy-saving and emission-reduction policies, so energy-saving has become an important part of development. issue. Maximizing energy saving is the ultimate goal of all mechanized products. The solar street lights are in line with this development trend and are leading the way. No matter what kind of product, as long as it circulates in the market, it can prove the value of its existence. This means that existence is reasonable. Maybe it does not receive many people, or its function has not b
Highlights of Solar Street Lights
2020 / 11 / 18
In terms of working principle, solar street lights use solar energy as the light source, and solar panels charge the battery during the day. At night, when lighting is needed, the battery will start to power the light source. In use, it does not need to lay complicated and expensive power supply lines, so that it can be installed in any site and any environment. Its battery adopts natural light and can be recycled. It does not need external power supply. The source is green and environmentally friendly. When the sun is insufficient to a certain extent, solar street lights It can automatically adjust the switch, truly unattended, all-weather work. Compared with traditional incandescent street lamps with high voltage power supply, solar street lights are very different in product characteristics, material structure and power supply lines. Solar street light is a kind of traffic and road condition lighting that our country uses solar energy as the external power supply energy for street lights. Street lights play a very important role in urban life and are our eyes for travel and nightlife. In terms of product features, solar street lights use solar energy in their light sources. During the day, it can use the solar circuit board to charge the battery in the street lamp, and at night, the battery can supply power to the lamp, which can fully meet the needs of lighting. The solar power used by solar street lights is green and environmentally friendly, and it can be seen everywhere in nature, which saves the materials needed for laying power lines, saves a lot of manpower and material resources, and improves construction efficiency. In addition, solar street lights are green, environmentally friendly, energy-saving, long-life, stable product structure, and have very good social and economic benefits. Solar street lights, use environmental conditions: 1.
The light source and component performance advantages of LED street lamps
2020 / 11 / 17
Street light pole manufacturers solar street lights do not need to lay underground cables, and do not need to pay for lighting electricity. The key components used in solar LED street lights, solar panels, solar DC street light intelligent controllers, maintenance-free batteries, and lighting lamps have all passed national product certification. Solar LED street lights are mainly suitable for the lighting of roads, squares, parks, tourist attractions, green belts and other places. LED cold light source, compared with incandescent lamp, energy saving efficiency can reach more than 90%. Under the same brightness, the power consumption is only 1/10 of the ordinary incandescent lamp, 1/3 of the fluorescent tube, 1/2 of the low-voltage energy-saving lamp, and the LED light source is recognized as a light source for solar systems*. The LED adopts fine control mode, and the LED light is in Working in this mode can significantly reduce the heat of the LED lamp, and effectively solve the problem of dead beads and light decay of the LED lamp. Solar LED street lights of street light pole manufacturers usually use crystalline silicon solar cell components, which have excellent low light response performance and need to comply with electrical related specifications. Anti-reflection film and high transparency glass greatly increase the energy generated; 4-6 holes are opened on the frame, which is easy to install on all system structures; standard MC connectors and 1m long cables are provided; there are 3 in the junction box The diode greatly reduces the system power loss shielded from the component. The street lamp battery of street lamp pole manufacturers adopts lead-acid maintenance-free or gel battery, which has the advantages of small size, light weight, low self-discharge, low maintenance, long life, convenient use, no corrosion to the environment, and no p
Street light pole classification, what are the street light pole materials?
2020 / 11 / 16
As the demand for street lighting becomes more and more prosperous, the market for its supporting products street lamp poles is also growing. But did you know? In fact, there are different classifications of street lamp poles, and the materials used for street lamp poles are also different. Some street light poles are sold overseas, and some are gradually withdrawn from the market. Let me talk about street light poles. street light pole classification, what are the street light pole materials? 1, cement street lamp pole Cement street light poles are attached to urban power poles or cement poles are erected separately, because they are bulky, costly in transportation, and relatively dangerous. Now the market has gradually phased out such poles. 2, iron street light pole Iron street lamp pole, also known as high-quality Q235 steel pole. It is made of high-quality Q235 steel, hot-dip galvanized and sprayed with plastic. It will not rust for 30 years and is very hard. This is the most common and used street light pole in the street light market. 3, fiberglass street light pole FRP pole is a kind of inorganic non-metallic materials with excellent performance. There are many kinds of them. The advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but the disadvantages are brittleness and poor wear resistance. Therefore, not many are used in the market. 4, aluminum alloy street light pole Aluminum alloy street light poles are made of high-strength aluminum alloy. The manufacturer not only protects the safety of personnel in a humane manner, but also has high strength, does not require any surface treatment, has corrosion resistance for more than 50 years, and is very beautiful. It looks more upscale. Aluminum alloy has better physical and mechanical properties than
Safety requirements for traffic signal pole shell
2020 / 11 / 15
In today`s society, urban construction is developing faster and faster, and road construction is in full swing! Roads are an important part of our current urban civilized transportation system, which is important for traffic management, avoiding traffic accidents, and improving road use efficiency. The current situation of urban traffic is of great significance. As an important part of the traffic signal pole shell, it plays a very important role in the protection and safe use of traffic signal lights! If there is no shell, there is no normal and safe use! There are several requirements for the safety of the shell of the road traffic signal pole: 1. Creepage distance and electrical clearance requirements The creepage distance and electrical clearance between various live parts in the shell and adjacent metal parts shall not be less than 3.6mm. 2. Specific regulations for wire fixing frame and terminal The housing should be equipped with a wire fixing frame made of insulating material to prevent the terminal from being stressed and the wire insulation from wearing. The signal lamp housing shall have wiring terminals for connecting the light-emitting unit with the external power supply, and the wiring terminals shall be threaded wiring terminals that meet the requirements of Chapter 14 of GB 7000.1-2007. 3. Protection at the cable entrance The cable entry should be suitable for protecting the wires with conduits, wire protective sleeves, etc., and should be chamfered to make it smooth, with a minimum radius of 0.5mm. 4, grounding requirements When there are metal parts that can be touched during installation, replacement of bulbs, or metal parts that may become live when insulation problems occur, yellow-green wires should be used to connect these metal parts to the grounding terminal on (or near) the terminal Connect,
Safety requirements for traffic signal pole shell
2020 / 11 / 14
In today`s society, urban construction is developing faster and faster, and road construction is in full swing! Roads are an important part of our current urban civilized transportation system, which is important for traffic management, avoiding traffic accidents, and improving road use efficiency. The current situation of urban traffic is of great significance. As an important part of the traffic signal pole shell, it plays a very important role in the protection and safe use of traffic signal lights! If there is no shell, there is no normal and safe use! There are several requirements for the safety of the shell of the road traffic signal pole: 1. Creepage distance and electrical clearance requirements The creepage distance and electrical clearance between various live parts in the shell and adjacent metal parts shall not be less than 3.6mm. 2. Specific regulations for wire fixing frame and terminal The housing should be equipped with a wire fixing frame made of insulating material to prevent the terminal from being stressed and the wire insulation from wearing. The signal lamp housing shall have wiring terminals for connecting the light-emitting unit to the external power supply, and the wiring terminals shall adopt the threaded wiring terminals that meet the requirements of Chapter 14 of GB 7000.1-2007. 3. Protection at the cable entrance The cable entry should be suitable for protecting the wires with conduits, wire protective sleeves, etc., and the edges should be chamfered to make them smooth, with a minimum radius of 0.5mm. 4, grounding requirements When there are metal parts that can be touched during installation, replacement of bulbs, or metal parts that may become live when insulation problems occur, yellow-green wires should be used to connect these metal parts to the grounding terminal on (or near) the terminal Connect, an
The necessity of mobile solar traffic lights
2020 / 11 / 13
1. The necessity of the project The process of urban and rural construction and urbanization in our country is changing with each passing day. With the rapid development of road traffic, the task of road traffic management is getting bigger and bigger and the requirements are getting higher and higher. The original road traffic signal control has been difficult to adapt to the needs of modern road traffic management, especially the demand for intelligent traffic lights. This puts forward new and higher intelligence requirements for the road traffic signal control system to adapt to the rapid development of transportation; puts forward the goal of making full use of solar energy to achieve energy saving and emission reduction; puts forward the requirements of mobile solar signal lights; puts forward Requirements for ease of construction, installation and use. Based on the above four major issues, with the strong support and help of relevant companies, a set of system products has been developed to make full use of solar energy to provide sufficient energy for the system; solve the problem of not setting up power cable dedicated lines and not using city power, and achieving energy saving goals and resources Recycling, reducing the cost of traffic supervision; realizing the intelligent and visual operation of the mobile solar traffic signal light control system, and meeting the needs of the rapid development of the transportation industry with the most advanced equipment and technological means. 2. Industrial policy in the technical field of the project The technical fields of the mobile solar traffic signal light control system include: new energy, new materials, and electronic information. The new products of the solar road traffic signal control system developed by the project using new technologies, new materials, new processes and new equipment meet the requirements of national technology and industrial policies. 3. T
What requirements should traffic signs meet?
2020 / 11 / 12
With the advancement of urbanization, there are more and more motor vehicles on the road. In addition, the increase of electric boats also puts a certain pressure on road driving. Therefore, many traffic facilities and various types of traffic can be seen at various road junctions. Signs play a very important role in the safe driving of roads. In the setting of traffic signs, the surface colors are relatively bright, which can give pedestrians a good visual impact. The traffic signs can be seen at first glance, and Drive according to its instructions. Especially at night, under the illumination of the car lights, the signs on the surface can be seen through the reflection, which effectively improves people's discrimination ability, arouses the alertness of the driver, and provides great convenience for people to drive in the dark. . 1. All signs to be installed must be confirmed by the engineer before they can be installed, and the product quality must be strictly inspected. 2. After the equipment arrives at the site, manage pedestrians and traffic with safety facilities such as traffic signs and road fences, and strictly follow the operating rules to ensure the safety of on-site personnel, try to prevent accidents and ensure construction safety. 3. Determine the location of the sign in strict accordance with the requirements of the construction drawings and the direction of the traffic flow. 4. Fix the sign board on the pillar by sliding bolts, hoop and other connecting accessories. The height of the lower edge of the single-post sign board should be 250cm from the road surface. 5. After the basic measurement of the traffic signs, the excavation work should be considered after consideration of the location set on the drawing, and the processing shall be carried out according to the regulations. Formwork, reinforcement, concrete pouring, anchor bolts and base flange The location is correct and reaches the specified elevati
2020 / 11 / 11
Lamp setting conditions 4.1 Signal lamp setting conditions 4.1.1 The three situations of intersection, road section and crossing should be considered when setting signal lights. 4.1.2 "The setting of intersection signal lights should be determined according to the shape of the intersection, traffic flow, and traffic accident conditions. Signal lights and corresponding supporting facilities dedicated to guiding the passage of public transportation vehicles can be set up. 4.1.3 The setting of road section signal lights should be determined according to conditions such as road section traffic flow and traffic accident conditions. 4.1.4 At the crossing, crossing signal lights should be set. 4.1.5 When setting signal lights, corresponding road traffic signs, road traffic markings and traffic technology monitoring equipment should be provided. 4.2 intersection signal light setting Intersections can be divided into cross-shaped, oblique, T-shaped, Y-shaped, staggered T-shaped, staggered Y-shaped, multi-way, and circular intersections according to their shapes. 4.2.1 Cross intersection, oblique intersection, T-shaped intersection, Y-shaped intersection -- When the two intersecting roads are both arterial roads, signal lights should be set. -- When one of the two intersecting roads is a branch road, it should be determined whether to set up signal lights according to traffic flow (see 4.3 for details) and traffic accident conditions. Note 1: Arterial roads in this standard refer to express roads, arterial roads, and secondary arterial roads (large and medium-sized cities) that comply with the provisions of Chapter 7 of GB50220-1995 in terms of design speed, number of vehicle lanes, road width and cross-section form. And arterial roads (small cities), and roads with four lanes or more in both directions. Note 2: T
How to buy good high-efficiency street lights
2020 / 11 / 10
At present, solar LED street lights have a variety of models and specifications in the market, which can well meet various needs of users. In order to ensure the efficiency of solar LED street light lighting, merchants must clarify the product model of LED solar street light when purchasing, which can facilitate future maintenance work. Products after repair should be reported to the manufacturer`s engineers in time. This type of failure can be effectively avoided in the solar LED street lights produced in the future. This also creates very good conditions for its future sustainable workability, which can effectively increase the working characteristics of its products to a certain extent, so that solar LED street lights can be more durable. When installing solar LED street lights, only guarantee LED The high efficiency of solar street lights can ensure the road to achieve good road lighting. Solar LED street lights are now more and more widely used in road energy-saving lighting. Because LED solar street lights are durable and energy-saving, they are relied on by government agencies or large enterprises in various countries, and LED solar street lights are used by street light manufacturers to reduce energy consumption. At the same time, the quality of road lighting is improved to ensure people's travel safety. The working principle of the solar street lamp is very simple, that is, the solar panel made by the photovoltaic special effect principle receives solar radiation energy during the day and converts it into electrical energy output. It is stored in the solar battery through the charge and discharge controller, and the illumination gradually decreases to About 101ux, the open circuit voltage of the solar panel is about 4.5v. After the charge and discharge controller measures this voltage, the solar battery discharges the lamp holder. Generally, the market pr
Composition and characteristics of solar street lights
2020 / 11 / 08
As the earth's resources become increasingly scarce, the investment cost of basic energy is increasing, and various safety and pollution hazards are everywhere. Solar energy, as a kind of "inexhaustible and inexhaustible" safe and environmentally friendly new energy, is becoming more and more valued. At the same time, with the development and progress of solar photovoltaic technology, solar power generation has developed rapidly in the field of street lighting. What is solar street light? Solar street lights are powered by crystalline silicon solar cells, batteries store electrical energy, ultra-bright LEDs are used as light sources, and are controlled by an intelligent charge and discharge controller to replace traditional public power lighting street lights. The main components of solar street lights: solar panels, batteries, controllers, light sources, poles. What is the working principle of solar street lights? During the day: the solar panel absorbs the solar spectrum to generate electric energy, and is controlled and converted by the controller to store the electric power generated by the solar panel in the battery. At night: The electric energy in the battery is converted by the controller to drive the LED light source to emit light. Solar street lights are composed of solar panels, batteries, controllers, light sources, light poles, etc. Next, I will introduce the core components of solar street lights. Main composition-solar panel Solar panel-also known as "solar chip" or "photocell" or "solar cell", is a kind of photoelectric semiconductor sheet that uses sunlight to directly generate electricity. Solar cells are devices that directly convert light energy into electrical energy through photoelectric effect or photochemical effect. Polycrystalline silicon and monocrystalline silicon solar cells that work with the photoelectric effect
What are the advantages of our extensive use of street lights
2020 / 11 / 07
Street lights are widely used in our lives. They can be seen everywhere on roads and in communities. Street lights bring light to our night. With the continuous consumption of energy and the increasing scarcity of resources, the greenhouse effect is becoming more and more harmful to humans, and the atmospheric environment is becoming more and more serious to the earth. International calls for energy saving and consumption reduction are getting higher and higher. Today, energy saving has become a country in the world. The top priority of work. my country officially launched the green lighting project as early as 1996, and proposed that outdoor lighting projects should save resources, prevent pollution, and benefit future generations. Over the years, through the joint efforts of all walks of life, as the fourth generation of light source semiconductor lighting products, there has been a rapid development and remarkable achievements in energy saving. my country's outdoor lighting accounts for about 30% of the entire lighting power consumption, which is closely related to people's production and life. Street lamp as an important application of outdoor lighting, its advantages: Long lifespan of high-power street lights: For this focus issue that everyone pays great attention to, as many domestic and foreign experts and companies` product brochures describe 50,000-100,000 hours, and they are optimistic. In fact, the life of high-power street lights depends on The following points: (1) The chip quality and light attenuation value of the street light source. (2) The packaging quality of street lights. Consistency and reliability. (3) Street lamps are used as cold light sources, but the semiconductor itself generates heat. The heat dissipation of street lamps ensures good working conditions of street lamps. (4) The life quality assurance of power supply and constant current drive.
Integrated street light of solar street light
2020 / 11 / 06
1 Introduction Solar integrated light, also called integrated solar street light, is a combination of high-efficiency solar panels, 8-year long-life lithium batteries, high-efficiency LEDs and intelligent controllers, PIR human body sensing modules, and anti-theft mounting brackets. Integrated solar street lights, also called integrated solar street lights or integrated solar garden lights. Because of its easy installation, integrated solar street lights are very popular in the market. 2. Working principle: The integrated solar street light is converted into electric energy by solar panels, and then the lithium battery in the integrated solar street light is charged. In the daytime, even in cloudy days, this solar generator (solar panel) collects and stores the required energy, and at night automatically supplies power to the LED lights of the integrated solar street light to achieve night lighting. At the same time, the integrated solar street light has PIR human body induction Function, can realize the infrared induction control light work mode of the intelligent human body at night, 100% bright when there are people, and automatically change to 1/3 of the brightness after a certain delay when there is no one, which saves more energy intelligently. At the same time, as a kind of "inexhaustible and inexhaustible" safe and environmentally friendly new energy, solar energy plays an important role in integrated solar street lights. Solar energy (Solar Energy) generally refers to the radiant energy of sunlight, which is generally used to generate electricity in modern times. Since the formation of the earth, organisms have mainly survived by the heat and light provided by the sun. Since ancient times, humans have also understood that the sun can dry objects and use them as a method of preserving food, such as salt production and salted fish. However, with the reduction of f
Comparison of the lighting principle of sodium lamp and LED street lamp
2020 / 11 / 05
At present, my country is creating a resource-saving and environment-friendly society, and the concept of "green lighting" is gradually gaining popularity. With the continuous advancement of science and technology and the rapid development of semiconductor material application technology, low-power LED light sources have been widely used in landscape lighting, and high-power LED street lights have attracted more and more attention from all aspects. The luminous principle of LED lights: LED (Light Emitting Diode), a light-emitting diode, is made of III-IV group compounds. It is a solid-state semiconductor device that can directly convert electricity into light. The heart of the LED is a semiconductor chip. The semiconductor chip consists of three parts, one part is a P-type semiconductor, in which holes dominate, and the other end is an N-type semiconductor. When the current acts on the chip through the wire, the electrons and holes will be pushed into the quantum wells. In the quantum wells, the electrons and holes recombine and then emit energy in the form of photons. This is the principle of LED light emission. The wavelength of light is the color of light, which is determined by the material forming the P-N junction. The luminous principle of high pressure sodium lamp: The high-pressure sodium lamp uses electricity to generate an arc between the electrodes at both ends of the arc tube. Due to the high temperature of the arc, the sodium amalgam in the tube is heated and evaporated into mercury vapor and sodium vapor. The electrons emitted by the cathode impact and discharge during the movement to the anode. The atoms of the substance gain energy to produce ionization or excitation, and then return from the excited state to the ground state; or from the ionized state to the excited state, and then return to the ground state in an infinite loop. At this time, the excess
Moisture-proof and anti-salt spray treatment of LED display
2020 / 11 / 04
For the application in coastal projects, the products can be processed from the following aspects: 1. The choice of LED lamp beads: In the humid environment of coastal areas, small LED lamps are prone to electrode migration, resulting in the so-called "caterpillar" phenomenon. In the project, we will choose a light tube with a larger luminous tube volume as much as possible while ensuring the dot spacing to reduce the "caterpillar phenomenon." 2. Protection of components: For exposed components, in order to reduce the contact with moisture and salt in the air, and to extend the service life of the components as much as possible, the surface of the components on the back of the box can be painted with three-proof paint . 3. Protection of LED lamp beads: LED lamp beads are an important part of the LED display. In order to ensure the service life of the lamp beads in the environment of high salt and high humidity, the surface of the LED lamp beads is coated with nano protective coating. This paint is a colorless, transparent material that forms a nano-protective layer on the surface of electronic components to completely cover the pins of electronic components, effectively preventing electronic product components from wading in water and being corroded by acid and alkali salts. Under the premise of not affecting the LED display effect, the erosion of the LED lamp beads by the external environment is reduced, and the service life of the LED lamp beads is increased.
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