Gate Passage Determination Using RFID RSSI and Movement Flow Lines
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Solution Overview
Problem
Existing RFID systems cannot reliably determine whether an article has passed through a gate, leading to potential misidentification of tags that have not actually passed through.
Innovation Solution
An information processing apparatus that specifies the movement flow line of an object near a gate, acquires RSSI from RFID tags, and determines passage based on both flow line and RSSI to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only RFID tag reading is used to determine passage, then the system is simple, but the determination accuracy is low and false positives occur
Solution Approach 1:
The patent combines RFID tag reading with camera-based object detection to create a multi-modal passage determination system. The RFID reader captures tag information while the camera captures visual flow line data, and both data sources are merged to make a comprehensive passage determination, thereby improving accuracy while managing system complexity through integrated processing
Solution Approach 2:
The patent introduces a passage determination unit as an intermediary that processes and correlates data from both RFID readers and camera systems. This intermediary component analyzes the relationship between RFID tag presence and visual flow line patterns to make accurate passage determinations, reducing false positives while maintaining reasonable system complexity
2Reliability
If multiple detection methods are combined, then the determination accuracy improves, but the device complexity increases
Solution Approach 1:
The patent divides the detection system into distinct functional segments: RFID reading units positioned at specific locations, camera units capturing visual data, and a central passage determination unit that processes information from both segments. This segmentation allows each component to perform its specialized function independently while contributing to the overall reliable passage determination
Solution Approach 2:
The passage determination unit serves multiple functions: it processes RFID tag data, analyzes visual flow line patterns from camera data, correlates information from both sources, and makes the final passage determination. This multi-functionality consolidates complexity into a single versatile component rather than requiring separate systems for each function
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
Enables reliable management of article carrying-in or carrying-out by accurately determining passage through a gate, reducing incorrect determinations.
Implementation Method 1
an RFID tag, and a reading apparatus configured to communicate with the RFID tag and thereby read information stored in the RFID tag, and to measure an RSSI of a signal transmitted from the RFID tag
Data Source
AI summary
An information processing apparatus, a reading system, an information processing method, and a program capable of manage carrying-in or carrying-out of articles more reliably are provided. An information processing apparatus (1) includes a flow line specification unit (2) that specifies a flow line of a movement of an object in a predetermined area near a gate, an RSSI acquisition unit (3) that acquires an RSSI of a signal transmitted from an RFID tag located near the gate, and a passage determination unit (4) that determines whether or not an article specified by identification information read from the RFID tag has passed through the gate based on the specified flow line and the acquired RSSI.