V2X Terminal-Server Detection for Malicious Message Interference
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Solution Overview
Problem
Current V2X communications systems are vulnerable to malicious messages that interfere with autonomous driving behaviors, consuming computing resources and posing security risks to drivers and passengers, with no effective detection methods available to identify and mitigate such threats.
Innovation Solution
A vehicle-to-everything abnormal behavior detection method and system that involves vehicle-to-everything receiving terminals and servers to identify abnormal messages based on predefined policies, extracting features like permission, position, speed, and event anomalies, and reporting these to the server for further analysis and potential blacklisting or certificate revocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a V2X terminal receives and processes V2X messages from surrounding traffic participants, then the autonomous driving behavior determination can be made accurately, but malicious messages can consume computing resources and interfere with the determination
Solution Approach 1:
The patent introduces a V2X server as an intermediary between V2X terminals. The server receives abnormal behavior reports from terminals, analyzes the messages using multiple detection policies, and provides feedback to determine whether the sending terminal or receiving terminal exhibits abnormal behavior. This intermediary structure enables centralized security management while allowing terminals to focus on autonomous driving decisions.
Solution Approach 2:
The patent implements preliminary detection of abnormal behaviors by analyzing V2X messages before they affect autonomous driving decisions. The V2X server proactively identifies malicious messages through multiple detection policies and takes preventive actions, such as blocking messages from terminals with abnormal behaviors, before they can interfere with the autonomous driving determination process.
2Reliability
If the V2X server implements comprehensive abnormal behavior detection using multiple detection policies, then the security assurance can be improved, but the system complexity increases
Solution Approach 1:
The patent segments the abnormal behavior detection function into multiple independent detection policies, each targeting specific types of abnormal behaviors. The V2X server executes these policies separately and combines their results to make the final determination. This segmentation allows for manageable complexity while maintaining comprehensive security coverage.
Solution Approach 2:
The patent adds a new dimension to the V2X communication architecture by introducing a centralized server that operates independently from the terminal-based autonomous driving system. This dimensional separation allows the server to apply multiple detection policies without increasing the complexity of the terminal's autonomous driving decision-making process.
3Loss of time
If the receiving terminal determines abnormal messages locally, then the response time can be reduced, but the detection accuracy may be insufficient compared to server-based analysis
Solution Approach 1:
The patent implements partial local detection at the receiving terminal for immediate response to abnormal messages, while simultaneously reporting to the V2X server for comprehensive analysis. This partial action approach allows the system to respond quickly to critical security issues while benefiting from the enhanced detection accuracy provided by server-based multi-policy analysis.
Data Source
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AI summary
Embodiments of this application disclose a vehicle-to-everything abnormal behavior detection method, an apparatus, and a system, to detect abnormal behaviors of a vehicle-to-everything sending terminal and a vehicle-to-everything receiving terminal, so as to ensure security of a vehicle communications system. An embodiment of this application provides a vehicle-to-everything abnormal behavior detection method. The method is applied to a vehicle communications system. The vehicle communications system includes a vehicle-to-everything sending terminal, a vehicle-to-everything receiving terminal, and a vehicle-to-everything server. The method includes: The vehicle-to-everything receiving terminal receives a first vehicle-to-everything message sent by the vehicle-to-everything sending terminal. The vehicle-to-everything receiving terminal determines, according to a first abnormal behavior detection policy, that the first vehicle-to-everything message is an abnormal message. The vehicle-to-everything receiving terminal sends a report message to the vehicle-to-everything server. The report message includes the first vehicle-to-everything message.