Receiving Card for LED Displays with 10G Base-T Transceivers
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Solution Overview
Problem
Current LED display systems face insufficient transmission rates, particularly with the development of small pitch displays, where 1 Gbps is inadequate, leading to instability and high maintenance costs due to frequent plugging and unplugging of network cables.
Innovation Solution
The implementation of a receiving card with a programmable logic device, memory device, and multiple Ethernet interfaces, including 5 Gbase-T or 10 GBASE-T type physical layer transceivers, along with USB 3.0 interfaces and SerDes channels, enables higher transmission rates and flexible signal transmission modes, including wireless options, to enhance data transmission reliability and reduce maintenance complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If 1 Gbps transmission rate is used in LED display systems, then device complexity is reduced, but transmission speed becomes insufficient for small pitch displays
Solution Approach 1:
The patent changes the transmission rate parameter from 1 Gbps to 10 Gbps by upgrading the physical layer transceiver from 1Gbase-T to 10Gbase-T type, enabling higher speed data transmission for small pitch LED displays while maintaining system compatibility through standardized interface designs
2Ease of operation
If network cables are frequently plugged and unplugged for maintenance, then ease of operation is improved, but reliability deteriorates due to transmission instability
Solution Approach 1:
The patent implements dynamic link aggregation that can automatically adjust the number of active Ethernet interfaces based on transmission requirements, allowing the system to maintain stable multi-path transmission while providing flexible operational control without frequent cable reconnections
3Reliability
If multiple Ethernet interfaces are configured for high speed transmission, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent designs Ethernet interfaces with multi-functional capabilities that can operate in various modes including link aggregation, individual high-speed transmission, and wireless coordination, allowing a single interface structure to serve multiple purposes and reduce overall system complexity despite having multiple interfaces
4Adaptability or versatility
If wireless transmission options are added to enhance flexibility, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent introduces a wireless transmission card as an intermediary component that can be independently added or removed without affecting the core receiving card structure, providing wireless transmission capability while maintaining modular architecture that limits the increase in overall system complexity
Data Source
AI summary
Embodiments of the disclosure relate to a receiving card, which includes: a circuit board and a programmable logic device, a memory device, a plug-in component, a physical layer transceiver group and a plurality of Ethernet interfaces arranged on the circuit board. The memory device and the plug-in component are electrically connected with the programmable logic device; the plurality of Ethernet interfaces are respectively and electrically connected with a plurality of SerDes channels configured by the programmable logic device through the physical layer transceiver group; each of the plurality of SerDes channels includes two pairs of differential signal lines, and one of the two pairs of differential signal lines is used for transmitting data and the other pair of differential signal lines is used for receiving data.