Introduction to popular science about led display
The basic composition of LED display: 1. Asynchronous screen: It is generally composed of display unit board (module), bar screen card, switching power supply, and HUB board (optional). Connect to the computer through a serial cable, change the display text, and then work without the computer. 2. Synchronization screen: The synchronization screen system is more complex, the system can be large or small, generally composed of a computer, DVI graphics card, data sending card, synchronous data receiving card, HUB board, network cable, LED display, etc. The system always needs an online computer to work, and the image and text on the computer are displayed on the large LED screen. three. Terms and concepts involved in LED display 1. Pixel: It is the smallest imaging unit of the LED display. Commonly known as "dot" or "pixel". 2. Display module: It is composed of several display pixels, which are the smallest unit of the LED display screen independently in structure. · The indoor screen uses 8x8 display modules, that is, each display module has 64 pixels · The outdoor screen uses a single lamp bead, usually one pixel of the module is composed of 1-3 lamp beads of the same or different colors. 3. Display module: The independent unit of the LED display screen determined by the circuit and the installation structure and has the display function. Simply put, in order to facilitate assembly and display, the semi-finished products shipped from the factory are usually provided in the form of display modules, and multiple display modules and display drivers are built together. Indoor screens are commonly called "unit boards"; outdoor screens are commonly called "modules". Several modules are combined with chassis, fans, and power supplies to form a "box", which is mostly used for large full-color screens. · Indoor screen unit boards usually have 64x32 (64 columns and 32 row
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Features of LED high bay lights.
1. The LED high bay light uses a single high-power LED lamp bead as the light source, uses a unique multi-chip integrated single-module light source design, and uses imported high-brightness semiconductor chips, which have high thermal conductivity, low light decay, and pure light color. No ghosting and other features. 2. The LED high bay light has a unique heat sink design, which is perfectly combined with the electrical box to effectively conduct heat and diffuse, thereby reducing the temperature in the lamp body and effectively ensuring the life of the light source and power supply. 3. The LED high bay light is environmentally friendly and pollution-free, does not contain lead, mercury and other polluting elements, and does not pollute the environment. 4. The surface of the heat sink of the LED industrial and mining lamp is treated with anodizing and anti-corrosion, with a compact and beautiful structure. 5. The LED high bay light adopts constant current and constant voltage control, suitable for wide voltage, which overcomes the power grid, noise pollution and light instability caused by the ballast, and avoids the eye irritation and fatigue during work. 6. The color rendering of LED high bay lights is good, and the actual color is more realistic. A variety of light colors can be selected to meet the needs of different environments. It eliminates the depressive emotions caused by the high or low color temperature of traditional lamps and makes the visual It feels more comfortable and improves people's work efficiency. 7. The decorative effect of LED high bay lights is good, using special surface treatment technology, novel appearance, simple installation, convenient disassembly, and wide application range.
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Eight advantages of LED street lights.
With the continuous progress and maturity of LED street lamp technology, many urban road projects have begun to use LED street lamps. This kind of street lamps rely on LED light-emitting diodes to generate electricity. Then, what advantages does LED street lamps have? Advantages of LED street lights: 1. The LED street lamp is green and environmentally friendly: it does not contain harmful elements such as mercury and xenon, which is conducive to recycling and does not cause electromagnetic interference (ordinary lamps contain mercury and lead elements, and the electronic ballast in energy-saving lamps will cause electromagnetic interference. ). 2. The LED street light has a long life: the semiconductor chip emits light, no filament, no glass bubble, not afraid of vibration, not easy to break, and the service life of the LED street light can reach 50,000 hours. 3. High-efficiency and energy-saving: LED street lights consume only a few kilowatts of electricity in a thousand hours (ordinary 60W incandescent lamps consume 1 kilowatt of electricity in 17 hours, and ordinary 10W energy-saving lamps consume 1 kilowatt of electricity in 100 hours). 4. LED street light rays are healthy: the light does not contain ultraviolet rays and infrared rays, and does not produce radiation (normal light rays contain ultraviolet rays and infrared rays). 5. The safety factor of LED street lights is high: the required voltage and current are small, the heat is small, and no safety hazards are generated, and it is used in dangerous places such as mines. 6. The potential of the LED street lamp market is great: low voltage, DC power supply, battery, solar power supply, LED street lamps in remote mountainous areas and outdoor lighting and other places where electricity is short of electricity. 7. Protect eyesight: DC drive, no stroboscopic (ordinary lights are driven by AC, so stroboscopic is bound to occur). 8. High light efficiency: LED street lamps generate littl
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What special attention should be paid to the installation of LED street lights?
In today's society, the common LED street lights in our daily lives have brought us a lot of convenience. But how many people really understand the street lights, the following will briefly introduce the precautions of LED street lights. As the application of LED street lights becomes more and more widespread, the installation requirements of LED street lights are becoming more and more detailed, and the details that need to be paid attention to are becoming more and more stringent. In order to ensure the service life of the installed LED street lights, what details should we pay attention to during the installation process? 1. Before installing the LED street light, it is necessary to ensure that the fittings of the lamp are complete to avoid uneven fittings, otherwise it will cause defects in the installed lamps. 2. The personnel who install the LED lamps must ensure that they have a professional certificate to avoid being unprofessional, otherwise the LED lamps will be damaged. 3. Make sure that the power cord of the LED lamp is long enough and not subject to tension or tangential force. When installing, be sure to avoid excessive tension between the wires of the lamps, don't let the wires get knotted, distinguish the output wires from the input wires, and don't confuse them. 4. Try not to install LED street lights near flammable materials. Be sure to pay attention to the distance between the lamps and flammable materials. It must be noted that: LED street lights cannot be installed in the zenith, or near the wall with a heat source, pay attention to the separation of low-voltage and high-voltage electrical connections. 5. After installing the LED street light, be sure to power-on test to check whether the lamp can work normally, to ensure that the lamp is lossless and operating normally.
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What factors have an impact on the life of LED street lights?
LED street lights have many options. So, what about the life span of LED street lights? I believe that users are also very concerned about the service life of LED street lights when purchasing. The following will briefly introduce which factors have an impact on the life of LED street lights. 1. LED street light controller. The controller not only controls, monitors, and maintains the operating conditions of the photovoltaic components, storage batteries, and loads, but also controls the storage batteries to ensure the operating conditions of the storage batteries. It also directly maintains the load of the LED street light, providing it with a useful and relative A stable working environment, especially in critical conditions such as battery power shortage or undervoltage operation. A controller with high precision and stable function will play a key role. For example, sometimes LED street lights will flicker and flicker. This failure is mainly due to a problem with the controller. 2. The lighting source of LED street lights. Different lighting sources have different service lives, such as low-pressure sodium lamps, low-voltage induction lamps, LED street lamps, low-voltage fluorescent lamps and other different types of light sources. At present, LED street lights mainly use LED lights, mainly because they have a good quality life of 50,000 hours. In theory, they can be used for more than 10 years for 10 hours of lighting per day. Therefore, choosing a good light source for installing LED street lights is the main key. 3. Light source starter for LED street lights. Different starters have different starting methods, requiring different ballasts or driving power lights. This part has a great influence on the light source. Especially the LED street light source. Nowadays, it is usually driven by a constant current source. The quality of the constant current source and whether the parameter scale is suitable for the light source is very important. Ma
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