First, EMC optimized the design.
In application, LED rental display screen needs to run simultaneously with various electronic devices. In order to avoid mutual electromagnetic interference, it is necessary to optimize the design of the rental screen by EMC. For example, PCB adopts non-peak wiring design, low interference wiring mode, multi-layer copper-clad shielding, high-low frequency separation, multiple processing of sensitive signals and other technologies; More optimized circuit design, such as multiple filtering and pure power supply technology; Multi-shielding EMC box structure design and so on, through the above design to solve electromagnetic interference.
Second, automatic correction.
What is "automatic error correction"? That is, the calibration data is stored in the module, and the module, receiving card and sending card can be replaced without any debugging and data retransmission, and can be used when powered on!
Traditional calibration techniques such as "point-by-point calibration" require professionals to resend calibration data when replacing modules and receiving cards; It is necessary to number each module, establish a folder to store the correction coefficient of the corresponding module, and store it in a U disk or a mobile hard disk. Users need to save the module correction coefficients separately and record the module numbers so as to correspond to each other. After replacing the receiving card or module, the correction factor needs to be reintroduced. If the coefficient is not introduced after replacing the module, a color code will appear; If the user loses the correction factor, the correction cannot be enabled.
For the screen rental with "automatic correction" technology, the user does not need to do any debugging after replacing the module or receiving card, but only needs to replace it; The whole screen is the corrected effect, and there are no problems such as color difference, color block and flower screen. As long as it is turned on, the whole screen will be displayed normally.
Third, the box state monitoring
The receiving card configured on the high-end rental screen can detect and monitor the temperature and humidity of the box, the communication state of the power supply and the fan signal line, so that the field staff can control the running state of the box in real time.
Four, dual card current sharing N+ 1 power supply double backup
Because LED display screen consists of a large number of boxes and a large number of electronic devices, the inevitable failure rate of electronic devices has been puzzling LED display screen users. Therefore, when some electronic devices on the LED screen fail, it is particularly important that the display screen can still work normally.
Dual-card dual-power backup function backup is a solution to ensure the reliability and stability of LED display screen in high demand environment.
Double-receipt backup mode, one box uses two cards. The two receiving cards work at the same time, which are mutually state backup, and automatically switch seamlessly when any signal fails, so as to ensure that the display screen works foolproof.
When the current-sharing power supply is used in parallel, N+m backup mode can be used to output more power. In parallel system, each current sharing power supply can share less power according to its power share. When a single power supply is damaged due to fault, other current-sharing power supplies can continue to supply power for the system, which improves the reliability of the system.
Verb (abbreviation for verb) operates silently.
In some high-end occasions of renting screen applications, such as museums, concerts, press conferences, etc. , need the noise of LED display screen, need low noise fan or fanless low noise power supply. Sometimes in order to achieve this effect, higher requirements are put forward for the power supply.