RFID Toll Charging Fraud Detection via Vehicle Appearance Matching
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Solution Overview
Problem
Current toll charging systems using RFID tags cannot effectively detect fraudulent use, where an RFID tag is swapped between vehicles, leading to undetected cheaper toll passages.
Innovation Solution
A charging system that combines RFID information with external appearance information, such as vehicle height and number, using a point computation system to determine the validity of the RFID tag's usage, integrating invalidity points to identify fraudulent activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If only RFID information is used for toll charging, then the charging process is simple and fast, but the system cannot detect fraudulent use of RFID tags
Solution Approach 1:
The patent combines RFID information with external appearance information (vehicle height, vehicle number) into a unified determination system. The RFID information acquisition unit obtains data from the RFID tag, while the external appearance information acquisition unit captures vehicle characteristics. These multiple information sources are merged in the point computation unit to create a comprehensive fraud detection mechanism, resolving the contradiction between simple RFID-only processing and reliable fraud detection.
Solution Approach 2:
The determination system is segmented into multiple independent components: RFID information acquisition unit, external appearance information acquisition unit, point computation unit, and determining unit. Each component handles specific tasks and computes invalidity points for different aspects of verification. This segmentation allows the system to maintain modularity while achieving comprehensive fraud detection through aggregated invalidity point analysis.
2Measurement precision
If multiple pieces of determination information are combined for fraud detection, then detection accuracy improves, but processing complexity increases
Solution Approach 1:
The patent transforms multiple types of determination information (RFID data, vehicle height, vehicle number) into a unified parameter system using invalidity points. Each piece of information is evaluated and converted into quantitative invalidity points, which are then aggregated by the point computation unit. This parameter transformation simplifies the processing of diverse information types while maintaining high detection accuracy through the cumulative invalidity point threshold mechanism.
3Reliability
If RFID tag information alone is used, then the charging system operates quickly, but fraudulent vehicles can pass undetected
Solution Approach 1:
The system performs preliminary data collection by acquiring external appearance information (vehicle height, vehicle number) simultaneously with RFID information reading, before the actual determination process. The imaging unit captures vehicle characteristics in advance, and this pre-acquired data is stored and ready for immediate comparison. This preliminary action ensures that all necessary verification data is available before fraud detection begins, maintaining processing speed while enabling comprehensive verification.
Data Source
AI summary
A charging system for communicating with an RFID tag on a vehicle traveling with the RFID tag attached thereto, and thereby performing charging processing in relation to the vehicle. The charging system is provided with: an RFID information acquisition unit for acquiring RFID information written onto an RFID tag detected by a roadside communication device for communicating with the RFID tag; an external appearance information acquisition unit for acquiring external appearance information relating to the RFID tag or a vehicle body of the vehicle; a point computation unit for determining the respective invalidity of each of a plurality of pieces of determination information, including external appearance determination information in which the RFID information and the external appearance information are combined, and calculating points on the basis of the invalidity; and a determining unit for determining whether or not the vehicle is a fraudulent vehicle on the basis of the points.