LED large screen receiving card detection system

By setting up a network cable interface and an Ethernet physical layer chip on the receiver card to detect signal strength, the Ethernet connection status of the LED screen receiver card can be monitored in real time, solving the problem of unstable receiver card connection in LED screens and improving system stability and maintenance efficiency.

CN224367856UActive Publication Date: 2026-06-16SHENZHEN MAGNIMAGE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN MAGNIMAGE TECH
Filing Date
2025-06-17
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Unstable Ethernet connections between receiver cards in LED screens can lead to unstable operation of the LED screens, making it difficult to identify problematic unit cabinets in advance, thus affecting operational stability and maintenance efficiency.

Method used

Each receiver card is equipped with a first and second network cable interface, and the Ethernet physical layer chip is used to detect the strength of reflected signals to monitor the Ethernet connection status in real time. By detecting abnormal signal strength, potential faults can be identified, and the problematic receiver card or connection node can be quickly located.

Benefits of technology

It enables real-time monitoring and early warning of LED screens, improves operational stability and maintenance efficiency, reduces troubleshooting time and costs, and extends service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224367856U_ABST
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Abstract

The utility model relates to a kind of LED large screen receiving card detection system, including multiple receiving cards connected by network cable.Each receiving card is equipped with Ethernet physical layer chip, first network cable interface and second network cable interface, first network cable interface is used to receive the detection signal emitted by last receiving card and reflect back to last receiving card, second network cable interface is used to emit detection signal to next receiving card and receive its reflected signal, and Ethernet physical layer chip detects reflected signal strength.The system can judge whether there is abnormality between receiving cards through real-time monitoring the reflected intensity of detection signal between each receiving card, find potential fault in time, avoid display abnormality due to unstable Ethernet operation of LED large screen, effectively improve the stability and reliability of LED large screen operation, facilitate quick positioning fault position, reduce maintenance cost and prolong the service life of LED large screen.
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