Vehicle Controller V2I Misbehavior Detection Counter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle-to-infrastructure (V2I) communication systems face challenges in detecting and reporting misbehavior, which can lead to confusion or safety hazards due to incorrect information broadcast by infrastructure, potentially resulting from malicious or erroneous actions.
Innovation Solution
A method involving a vehicle's controller that receives V2I messages, performs verification by comparing with V2V messages, sensor data, and expected driver behavior, and maintains a counter to report misbehavior when a threshold is exceeded, ensuring accurate and reliable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If V2I communication systems broadcast information from infrastructure, then information delivery is enabled, but misbehavior and incorrect information may occur
Solution Approach 1:
The system implements feedback mechanisms where vehicles report misbehavior observations back to the infrastructure and other vehicles. The counter that tracks misbehavior occurrences and triggers reporting creates a feedback loop that enables the system to self-correct and improve information reliability over time.
Solution Approach 2:
The patent introduces verification mechanisms as intermediaries between the V2I message source and the vehicle decision-making process. Multiple verification types (consistency checks, plausibility checks, cross-vehicle comparison) act as mediators to filter and validate information before it is fully trusted.
2Measurement precision
If multiple verification methods are performed on V2I messages, then misbehavior detection accuracy is improved, but processing complexity increases
Solution Approach 1:
The verification process is segmented into distinct types: consistency verification, plausibility verification, and cross-vehicle comparison verification. Each verification type focuses on specific aspects of message validation, dividing the complex verification task into manageable segments that can be processed independently.
Solution Approach 2:
The system performs multiple verification checks, which may seem excessive, but this partial or excessive action ensures high detection accuracy. The counter mechanism allows the system to accumulate evidence across multiple messages before triggering a misbehavior report, avoiding premature conclusions while maintaining high precision.
3Reliability
If misbehavior is reported frequently, then system reliability is improved, but communication bandwidth is consumed
Solution Approach 1:
The system performs preliminary verification actions locally in each vehicle before generating reports. The counter is maintained and evaluated locally, so only when the misbehavior threshold is exceeded does communication bandwidth get consumed for reporting. This preliminary filtering action reduces unnecessary communication.
Solution Approach 2:
The system changes the parameter of report generation from event-driven (report every misbehavior) to threshold-driven (report only when counter exceeds threshold). This parameter change optimizes bandwidth usage by filtering out isolated incidents while still maintaining system reliability through cumulative evidence tracking.
Data Source
AI summary
A method in a vehicle includes receiving a vehicle-to-infrastructure (V2I) message transmitted from a communication system affixed to infrastructure at a location. The V2I message includes at least one category of information among a plurality of categories of information and the plurality of categories of information include map-based information and road safety information. The method also includes determining, based on performing at least one type of verification, whether a misbehavior has occurred with respect to the V2I message. The misbehavior indicates incorrect information in the V2I message. A counter is maintained of a number of times the misbehavior has occurred with respect to the V2I message at the location, and the misbehavior is reported based on the counter.