I. EMC Optimized Design
In the application, LED rental displays must operate concurrently with various electronic devices. To avoid electromagnetic interference between them, EMC optimization design for the rental screens is essential. For instance, techniques such as non-sharp PCB wiring, low-interference routing, multi-layer copper shielding, high-frequency and low-frequency separation, and multiple processing of sensitive signals are employed; further optimized circuit designs, like multiple filtering and pure power supply technology; and multi-shielding EMC enclosure structure design are also implemented. These designs collectively address electromagnetic interference.
Automatic Calibration
What is "Auto-Calibration"? It's the process of storing calibration data on the module, so when you replace the module, receive card, or send card, no adjustments are needed. No need to resend data; just power it on and it's ready to use!
Traditional "point-by-point correction" and similar correction techniques require professionals to operate and resend correction data when replacing modules or receiver cards. Each module must be numbered, and a folder must be created to store the corresponding correction coefficients, which are then saved on a USB drive or a portable hard drive. Users must individually save the module correction coefficients and keep a record of the module numbers to ensure they match. After replacing a receiver card or module, the correction coefficients must be reimported; failure to do so after replacing a module may result in color block patches. If the user loses the correction coefficients, the correction cannot be activated.
Our rental screens feature "auto-calibration" technology, allowing users to simply swap modules or cards without any need for adjustment. The entire screen displays perfectly calibrated results, free of color discrepancies, blotches, or screen artifacts, and operates normally as soon as it's powered on.
Box Status Monitoring
The high-end rental screens are equipped with receiving cards that can detect and monitor the communication status of the cabinet's temperature, humidity, power, and fan signal lines, enabling on-site staff to real-time control the cabinet's operational status.
Four: Dual SIM, N+1 power backup with even current distribution
Due to the fact that LED display screens are composed of numerous cabinets and a vast array of electronic devices, the inevitable failure rate of these electronics has been a persistent concern for users. Therefore, it is particularly crucial that the display screen continues to function normally when some of the electronic components within it fail.
The dual-card, dual-power backup feature is a solution designed to ensure the reliability and stability of LED displays in high-demand environments.
Dual-receiving backup mode, with each cabinet utilizing two receiving cards. Both cards operate simultaneously in a hot backup state, automatically and seamlessly switching over in the event of any signal failure, ensuring the screen operates without a single flaw.
In parallel use of current-sharing power supplies, the N+m redundancy method can be employed to output higher power. In a parallel system, each current-sharing power supply can distribute less power based on its power share. In the event of a single power supply encountering a fault or damage, the other current-sharing power supplies can continue to supply power to the system, enhancing system reliability.
Five: Silent Operation
In high-end applications of rental screens, such as museums, concerts, and press conferences, there is a demand for LED display noise reduction, necessitating the use of low-noise fans, fanless options, and low-noise power supplies. Sometimes, to achieve this effect, higher requirements are placed on the power supply section.
