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 p

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 ligh

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 silic

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 win

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 transm

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 p

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 abou

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 introduc

The whole set of solar street lamp includes lamp pole, arm, ground cage, solar panel, solar sleeve bracket, battery, controller, LED lamps and lanterns. The price is determined by the choice of accessories. First: the lamp pole price is mainly affected by its shape, wall thickness, the size of the upper and lower caliber, flange size and plate thickness. The use of integral hot dip galvanizing lamp pole life can reach 20~25 years, is the first choice of customers. Second: the arm price is mainly influenced by the shape and length. Third: the price of the floor cage is determined according to the height of the solar street lamp selected by the customer. The parameters of the floor cage include M14, M16, M18 screw and customized size. The price of the cage is not much different, but mainly to distinguish the diameter of the screw size, many manufacturers will use non-standard size to deceive customers, in order to achieve the purpose of cost savings. Fourth: the solar energy sleeve bracket is mainly customized according to the size of the solar panels, but also need to go through the overall hot dip galvanized treatment to reach the standard, the price of this aspect is basically maintained at about 60 yuan.

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 comm

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 i

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 purp

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

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 temperatu

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 reason

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 microcomp

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 wit

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

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

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

"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 overch

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 equipmen