Blogs
on May 27, 2024
Technology 1: How to automatically switch the LED display on and off at regular intervals
1. The BIOS is set to automatically boot at a fixed point every day
Step 1: Start the LED display to serve the computer, press DEL to enter the BIOS, then select "POWER MANAGEMENT FEATURES (power management settings)", press Enter to enter. Find the "RESTORE ON AC /POWER LOSS" item in the power window, press Enter, and set its value to "POWER ON" through the direction keys;
Step 2: Select "RESUME ONRTC ALARM" and press Enter, then set its value to "ENABLE" through the arrow keys; Step 3: Select "RTC ALARMDATE" and press Enter, and then set its value to "EVERYDAY", which means Do the same thing every day. In the same way, set "RTC ALARM HOURS", "RTCALA RM MI NUT E", and "RTM ALARM SECOND" to "07", "55" and "00", which means that the start time is "7:55" in the morning :00", after all settings are completed, press F10 to save and restart.
Because the BIOS of different motherboards is different, the settings of some motherboards may be a little different from the above, but just remember to find the words "WAKE UP" or "Resume by Alarm" in the power management, because this is the time to set the timer. Options for booting.
2. With the help of shortcuts, it will automatically run and display the information file when it is turned on
Step 1: Associate the display file with the display program. For example, the displayed file is "Common. LED", and the program to open it is "LED.exe", just right-click the "Common. LED" icon, click "Properties", click the "Change" button in the "General" option, Find the program "LED.exe", click "OK";
Step 2: Create a shortcut to display the file. Right-click the "Common.LED" icon, click "Create Shortcut", a "Shortcut to Common.LED" icon appears, and then click "Start", "Run" and "Browse" in the lower left corner of the computer screen, Find the "Shortcut to Common.LED" file and confirm it, and copy the ""...Shortcut to Common.LED.lnk"" that appears in the "Open" column. Note: If you click "OK", you can directly open the display file "Common.LED";
Step 3: Set startup items in Super Rabbit. Download the Super Rabbit software from the Internet, and install it on the server computer with LED display, open the "Magic Settings-Build Your Own System" in the "Rabbit Tools", right-click in the "Startup Program", and select "New Project" , Paste "D:LED shortcut to commonly used.LED.lnk" in the "command line", and the title is determined by yourself.
After setting in this way, it will automatically run and display the file "Common.LED" when it is turned on, which has the same effect as opening "Common.LED" manually.
Technology 2: How to detect whether the LED display pixels are good or bad from the unit board
"Pixel" is a unit used to calculate digital images. Just like photographed photos, digital images also have continuous shades. If we enlarge the image several times, we will find that these continuous tones are actually composed of many similar colors. These small square points are the smallest unit "pixel" that constitutes an image. The smallest graphic unit that can be displayed on the screen is usually a single dye point.
According to the principle of color, we know that red (R), green (G), and blue (B) are called the three primary colors. These three colors can be combined to get any color from black to white. In the classification of LED display, there are monochrome display, two-color display, and full-color display. Monochrome is relatively simple, you only need to choose any one of the three primary colors to achieve monochrome display. In practical applications, more red LED lights are selected. In this case, one red LED light is one pixel.
The two-color display screen is similar to the monochrome display screen, as long as any two colors of the three primary colors are selected, the two-color display can be realized. In practical applications, choose red and green more. Yellow is achieved when red and green are bright at the same time. Therefore, the two-color display can realize three colors of red, green and yellow.
Technique 3: How to modify the text on the LED display screen?
First of all, you must know how to change the font on the LED display. There are usually three ways: serial cable, U disk, mobile phone (or remote control). According to the corresponding operation mode, you can operate how to change the characters on the led display.
1. Change the word through the serial port line
Connect the led display to the computer, open the display control software, set the screen parameters, edit the font of the program, and click send.
2. Change characters through U disk
There is a column in the software menu, click USB download, and save the setting parameters and content to the USB flash drive. When changing the program, just use the U disk to copy the content and replace it on the LED display.
3. Change characters through mobile phone (or remote control)
You can send and change ad subtitles by editing the text message
Technology 4: How to choose LED display cooling equipment
1. LED display within 20 square meters
1. For areas north of Guangdong Province, it is recommended not to use air conditioners for LED displays within 20 square meters. If conditions permit, two small fans are enough.
2. Some cities in the south: Guangdong, Guangxi, Hainan, Wuhan, Chongqing and other places need to install two fans. The diameter of the fans is about 500mm, which depends on the size of the installation space.
2. Display screens with an area of more than 20 square meters
1. If your display (linked resource site) is installed near the wall, it depends on how much the display can protrude. If it can protrude one meter from the wall, it is recommended to choose the fan according to the size of the area. The fan is installed on the side of the screen. If you buy an 80-square-meter ph16 outdoor full-color LED screen, it means that the fans you buy need 6 axial flow fans with a diameter of about 600mm, and the fans are to pump air outside That kind, and when installing the fan, make sure there is a net inside, so as to prevent the technicians who repair the display from sucking clothes and other things into it when repairing the display and causing personal injury. Aluminum alloy louvers are installed on the air outlet of the blower fan.
The wall-mounted display screen can also be equipped with an air conditioner. It is necessary to ensure that the main unit of the air conditioner has a place to put it, so as not to affect the overall appearance of the wall. There are requirements for the choice of air conditioners. Generally, 1.5P, 2P and 3P air conditioners are the most used. In northern cities, 12 square meters of 1P air conditioners are used; in southern cities, 9 square meters of 1P air conditioners are used for calculation. If the area of the LED outdoor display is relatively large, the air conditioner can be customized directly by the manufacturer, and if the area is not large, it should be purchased in a specialty store, but the display cooling air conditioner has the function of compensation for incoming calls.
2. If the installation method of the led display is to use a column, it is best to use a fan to dissipate heat. The fan is installed on the aluminum-plastic panel on the back of the large screen. Rainwater does not enter the display screen. If it is a double column, open a few louvers in the middle of the double column. The louver is the air inlet, and the fan above is the exhaust port, so that complete air convection can be formed to improve the heat dissipation effect. better.
If you require to install an air conditioner, there is no problem with that. The cost of purchase and use will increase, and the heat dissipation effect will be worse than that of a fan. There is another problem. If you want to install an air conditioner, you must consider where the external unit is installed, whether it is hung on the column or on the back, and whether it can ensure a beautiful appearance.
Technology 5: How to choose a small-pitch LED display
The first is the price. Due to the need to install more LED lamp beads per unit area, the small-pitch LED display has higher requirements for technology, and it will cost more to solve problems such as heat dissipation and circuits than large-pitch products. Good products Due to the low rate, the price of small-pitch LED products is still high. However, with the increase in production capacity of small-pitch LED displays and the improvement of technology, the yield rate will be further improved, and product prices will continue to fall.
The second is the problem of space. Even for products with small pitches such as P1.6 specifications, to achieve full HD resolution (1920×1080), the screen size will reach 144 inches, which is a huge demand for space, not including the base. The length and width specifications are about 3.2 meters x 1.8 meters. It is not an easy task to find a wall that can put it down, and this is not the case without considering the complicated installation work of this big guy.
Another important issue is maintenance. Although the lifespan of LED lamp beads can reach 100,000 hours, due to the extremely high density and the low thickness required for indoor products, it is difficult to dissipate heat and prone to local failures. In this way, it is very difficult to maintain and overhaul a small-pitch screen with a large area.
The most important thing is to choose a powerful LED display engineering service provider to cooperate with. At the same time, compare multiple companies, focusing on understanding the company's products and the company's reputation in the industry.