Onboard Unit Connection Verification for Toll Fraud Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The accuracy of dedicated short-range communication (DSRC) in toll systems is not 100% perfect, leading to false determinations of onboard unit disconnection and incomplete toll charges, which can result in fraudulent vehicles not being caught.
Innovation Solution
An onboard system with a notification device that outputs signals based on the connection status of the onboard unit, using a connection unit to verify the unit's connection or disconnection and compare vehicle information to detect fraudulent activities, and a monitoring system that captures images to identify vehicles without or with incorrectly attached onboard units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If DSRC communication is used to determine onboard unit connection status, then charge processing can be performed automatically, but communication errors may cause false determination of disconnection
Solution Approach 1:
The notification device serves as an intermediary component that provides an additional verification channel for onboard unit connection status. It receives signals from the onboard unit through a separate path (not relying solely on DSRC communication) and generates notification signals that confirm or indicate disconnection status, thereby mediating between the DSRC communication system and the charge processing system to improve determination accuracy
Solution Approach 2:
The notification device implements a feedback mechanism by continuously monitoring the onboard unit's connection status through dedicated signal reception and providing feedback signals that confirm the actual connection state. This feedback loop allows the system to verify DSRC communication results and correct false determinations, improving the reliability of connection status assessment
2Device complexity
If DSRC communication results are used alone to identify fraudulent vehicles, then processing is simple, but fraudulent vehicles cannot always be caught due to communication errors
Solution Approach 1:
The notification device acts as an intermediary verification layer that does not significantly complicate the overall system architecture. It receives simple signals from the onboard unit and generates notification signals that can be monitored to confirm fraudulent activities, adding reliability to fraud detection while maintaining relative system simplicity
Solution Approach 2:
The system applies partial verification by using the notification device only for connection status confirmation rather than complete fraud detection. This selective application of additional verification provides sufficient improvement in detection accuracy without requiring comprehensive system overhauls that would increase complexity excessively
3Speed
If onboard unit connection status is not verified, then charge processing is fast, but vehicles with switched or disconnected units may not be charged correctly
Solution Approach 1:
The notification device performs preliminary verification of onboard unit connection status before charge processing is finalized. By receiving and validating notification signals in advance, the system can quickly confirm connection status without adding significant delay to the charge processing workflow, while ensuring that vehicles with disconnected or switched units are identified and charged correctly
Data Source
AI summary
An onboard system installed in a vehicle that performs traffic processing for the vehicle, the onboard system comprising an onboard unit that communicates with an external device to perform charge processing; and a notification device that outputs a notification signal to an external device according to whether an expected onboard unit is connected or the expected onboard unit is disconnected via a connection unit connectable to the onboard unit.