RFID Patch Cord Tracking Eliminates Galvanic Connections
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Solution Overview
Problem
Physical layer management systems face complexity and reliability issues due to galvanic connections in patch cord and switch connectivity, requiring additional hardware and complicated procedures for moves, adds, and changes (MACs).
Innovation Solution
The integration of RFID modules using near-field coupling techniques eliminates galvanic connections by embedding RFID tags and antennas in patch cords and panels, enabling 'out of band' communication through a 5th wire pair, reducing the need for specialized ports and simplifying MAC procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If galvanic connections are used in patch cords and switch connectivity, then connectivity is established, but system complexity and reliability issues increase
Solution Approach 1:
The patent replaces the mechanical galvanic connection system with an electromagnetic field-based RFID communication system. RFID tags and readers enable data exchange without physical contact or electrical connection, eliminating the reliability issues and complexity associated with galvanic connections while maintaining connectivity functionality.
Solution Approach 2:
The patent introduces RFID tags as intermediary devices that facilitate communication between patch cords and switch connectivity. These tags act as mediators that transfer information without requiring direct galvanic connection, thereby reducing system complexity and improving reliability by decoupling the connectivity function from the electrical connection function.
2Loss of information
If additional hardware is added for connectivity information, then documentation capability is improved, but device complexity increases
Solution Approach 1:
The patent makes the RFID tags multi-functional by enabling them to store and transmit both connectivity information and identification data. This universal approach eliminates the need for separate documentation hardware, as the RFID tags themselves serve as both identification markers and information storage devices, reducing overall hardware complexity while improving documentation capability.
Solution Approach 2:
The patent merges the documentation function with the connectivity function by integrating RFID tags into the existing patch cord and switch infrastructure. Instead of adding separate documentation hardware, the connectivity information is captured and stored within the RFID tags that are already part of the connectivity path, thereby reducing hardware complexity while maintaining comprehensive documentation.
3Loss of information
If specialized ports are used on patch panels, then connectivity information can be acquired, but ease of operation decreases
Solution Approach 1:
The patent segments the information acquisition function from the physical connection function by using RFID tags that can be read remotely. Instead of requiring specialized ports on patch panels for information acquisition, the system divides the task into: RFID tags embedded in patch cords for information storage, and RFID readers positioned near patch panels for information retrieval. This segmentation allows standard ports to be used while maintaining full connectivity information acquisition capability, thereby improving ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the reliability and simplicity of physical layer management by automating documentation and reducing the complexity of MAC processes, ensuring performance integrity of Ethernet signals and supporting high-density switch equipment.
Implementation Method 1
RFID modules using near-field coupling techniques eliminates galvanic connections by embedding RFID tags and antennas in patch cords and panels
Data Source
Figure 1(A)~1(C)
Figure 2
Figure 3a~3a(ii)
AI summary
An intelligent network physical layer management system is provided that includes hardware that tracks the connection of plugs of patch cords in interconnect or cross-connect patching environments. RFID signaling is combined with near-field communication techniques to provide a reliable physical layer management system. In interconnect configurations, RFID tags are associated with switch ports of an Ethernet switch, enabling the system of the present invention to detect patch cord insertion and removal at switch ports and to receive information about the switch ports. In cross-connect configurations, RFID signaling is used to track the connections of patch cords between two patch panels. Systems according to the present invention avoid the problems associated with traditional galvanic connections previously used for tracking patch cord connections. An alternative common-mode system is also described.