Core functions and installation logic of the receiving card

​​The receiving card serves as the "nerve center" of the LED display system"​ ​, undertaking the dual missions of signal conversion and pixel control. Through self-developed decoding algorithms, it can accurately analyze 3840×2160@60Hz signal sources and achieve synchronous driving of more than 160,000 pixels per square meter.

​​Three golden rules for installation location selection​​：

• ​​Signal transmission distance ≤30 meters​ ​(HDMI cable has no signal attenuation threshold)
• ​​Ambient temperature ≤ 40℃​ ​(High temperature will cause chip operation to reduce frequency)
• ​​Waterproof and dustproof grade≥IP54​ ​(Essential protection standards for outdoor scenes)

Comparison of receiving card installation solutions in different scenarios

​​Technical verification case​ ​: The fence screen system used in an international competition, passed​ ​Distributed receiving card layout​ ​(Every 12 modules are equipped with 1 receiving card), successfully achieving 0.5ms level signal synchronization, meeting the requirements for tear-free display of high-speed motion pictures.

Detailed explanation of the entire process of receiving card settings

​​Step 1: Hardware location​​

• Check the firmware version compatibility of the sending card and receiving card
• Use CAT6 network cable to connect (recommended length ≤ 25 meters)

​​Step 2: Parameter configuration​​

• Set up to match the module​ ​Scanning method​ ​(1/32 sweep or static drive)
• calibration​ ​Grayscale​ ​(recommended ≥16bit)
• Configuration​ ​Fault self-diagnosis protocol​ ​(Supports hot plug detection)

​​Step Three: Run Verification​​

• Detect color block transition through grayscale gradient test chart
• Run the 48-hour burn-in test program

High frequency problem solution library

​​Q: Why does the receiving card need special protection? ​ ​
A: In scenes such as dance floors, floor tiles and screens, the static electricity on the human body may reach 15kV.​ ​Install ESD protection circuit​ ​Can reduce static interference by 92%.

​​Q: How to synchronize multiple receiving cards? ​ ​
A: Adopt​ ​Cascade synchronization technology​ ​, the clock synchronization error is kept <0.1μs through the PLL phase-locked loop circuit, and there is no picture tearing at the measured refresh rate of 3840Hz.

​​Q: How to ensure stability in extreme environments? ​ ​
A: In the working environment of -20℃ to 60℃, it passes​ ​Dynamic temperature control algorithm​ ​Automatically adjusts the speed of the cooling fan and cooperates with the three-proof coating process (anti-salt spray, anti-mold, and anti-moisture) to ensure 70,000 hours of trouble-free operation.

Reliable technical services are the cornerstone of stable operation of equipment. Available from the engineering design stage​ ​Electromagnetic compatibility simulation test​ ​, when installed on site​ ​Signal strength actual measurement calibration​ ​, the professional team always follows the ISO quality management system. When the system detects an abnormal temperature of the receiving card, the intelligent operation and maintenance platform will issue an early warning 48 hours in advance. This preventive maintenance strategy can reduce the failure rate by 67%. Truly valuable solutions are always based on the ultimate control of technical details.

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