RFID Tag Direct Communication Protocol for Connectivity Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RFID systems require a significant number of queries and commands between RFID readers and tags to determine connectivity between communication components, leading to potential interruptions and errors in connection or disconnection, especially in critical applications where timely and accurate connection status is vital.
Innovation Solution
Implementing direct electrical connections between RFID tags to enable them to communicate directly with each other, reducing the need for extensive communication with the RFID reader, using a protocol that allows for the exchange of identification information and maintaining connectivity without relying on the reader for continuous communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If RFID reader performs extensive queries and commands to determine connectivity between RFID tags, then connection status can be detected, but time delay and potential interruptions occur
Solution Approach 1:
The patent introduces a direct communication channel between RFID tags as an intermediary mechanism. Instead of the RFID reader directly querying each tag to determine connectivity, the tags themselves exchange connectivity information directly with each other through their antennas. This intermediary communication path eliminates the time-consuming round-trip queries between reader and tags, while maintaining accurate detection of connection status.
Solution Approach 2:
The patent implements preliminary action by having RFID tags continuously monitor and maintain connectivity information in advance. The tags perform self-identification and connectivity status updates proactively before the reader needs to query them. This preliminary establishment of connectivity data allows the system to immediately determine connection status without waiting for extensive reader-initiated queries, thus reducing time delay while preserving detection accuracy.
2Measurement precision
If RFID reader communicates extensively with multiple RFID tags to determine connectivity, then accurate connection status is achieved, but reader becomes burdened with extensive communication
Solution Approach 1:
The patent applies self-service by enabling RFID tags to autonomously determine and communicate their own connectivity status without requiring extensive reader intervention. Each tag independently monitors its connection state and exchanges this information directly with other tags through their antennas. This self-service approach transfers the communication burden from the reader to the tags themselves, simplifying the overall system architecture while maintaining accurate connection status detection.
Solution Approach 2:
The patent segments the connectivity detection function by dividing it into independent tag-to-tag communication units. Instead of the reader managing all communication with multiple tags simultaneously (which creates complexity), each tag independently manages its own connectivity information and exchanges it directly with connected tags. This segmentation of the detection function reduces the communication burden on the reader and simplifies the protocol structure.
3Reliability
If traditional RFID query protocol is used to detect connection status, then reader can identify connected components, but interruptions and errors may occur in critical applications
Solution Approach 1:
The patent implements continuity of useful action by establishing continuous direct communication between RFID tags. The tags continuously exchange connectivity information through their antennas, maintaining an ongoing record of connection status. This continuous tag-to-tag communication ensures that connectivity information is always current and available, eliminating the intermittent querying approach that causes interruptions and delays in critical applications.
Solution Approach 2:
The patent applies preliminary action by having RFID tags proactively establish and maintain connectivity information before any detection is needed. The tags continuously update their knowledge of connected components and maintain this information in readiness. When connection status detection is required, the information is already prepared and available, eliminating the time delay and potential interruptions associated with traditional reader-initiated queries.
Data Source
AI summary
Protocols, systems, and methods are disclosed for two or more RFID tags to communicate with each other using direct connections, wherein the two or more RFID tags are configured to mate and directly exchange identification information. A disclosed method includes detecting that a first RFID tag is connected to a second RFID tag. A first message comprising a first tag identification is sent directly from the first RFID tag to the second RFID tag, and the first RFID tag receives a first acknowledgement from the second RFID tag if the first tag identification was correctly received. A second message comprising a second tag identification may be sent directly from the second RFID tag to the first RFID tag and a second acknowledgement may be received from the first RFID tag if the second tag identification was correctly received.