Vehicle Network Security Intermediary for Signal Filtering
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Solution Overview
Problem
Modern vehicles face significant security threats due to varied communication systems, which can lead to unsafe operations if malicious signals alter speed limits or braking instructions, potentially causing injury and damage.
Innovation Solution
A vehicle communication network security system with onboard processors that examine incoming data signals to determine their security, allowing secure signals to control vehicle operations while blocking insecure ones, utilizing a combination of advanced firewall protection and deep packet inspection to prevent cyber-attacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If varied communication systems are used in vehicles, then operational flexibility and data exchange capability are improved, but security vulnerability and risk of malicious signal intrusion increase
Solution Approach 1:
The patent introduces a communication security device as an intermediary component between external communication systems and vehicle onboard systems. This device examines incoming data signals for security characteristics before allowing them to reach critical vehicle systems, thereby enabling secure communication without restricting operational flexibility. The security device acts as a mediator that filters malicious signals while permitting legitimate communication.
Solution Approach 2:
The patent implements preliminary security examination of incoming data signals before they are processed by vehicle systems. The communication security device analyzes signal characteristics, source identification, and data integrity in advance, blocking potentially malicious signals before they can affect vehicle operations. This preliminary action prevents security vulnerabilities from manifesting as actual threats.
2Reliability
If security examination of incoming data signals is implemented, then vehicle operation safety is improved, but communication efficiency and signal processing time are reduced
Solution Approach 1:
The patent applies security examination selectively to specific data signals based on their source, type, and intended destination within the vehicle system. Rather than uniformly examining all communications, the security device focuses examination on signals that pose higher security risks, such as those controlling critical functions like braking or speed management. This localized approach maintains safety while minimizing impact on overall communication efficiency.
3Measurement precision
If comprehensive signal inspection is performed to identify malicious signals, then detection accuracy is improved, but device complexity and processing load increase
Solution Approach 1:
The patent employs electronic and software-based security examination methods rather than complex mechanical inspection systems. The communication security device uses digital signal analysis, cryptographic verification, and data pattern recognition to identify malicious signals. This substitution of electronic/software mechanisms for potential mechanical approaches reduces physical complexity while maintaining high detection accuracy through sophisticated algorithmic analysis.
Data Source
AI summary
A vehicle communication network security system) includes one or more processors configured to be disposed onboard a vehicle system traveling together along a route. The processors examine one or more characteristics of an incoming data signal received by the processors from a communication device disposed onboard the vehicle system. The processors determine whether the incoming data signal is a secure data signal or an insecure data signal based on the one or more characteristics, communicate the incoming data signal to one or more onboard systems of the vehicle system for use by the one or more onboard systems in controlling operation of the vehicle system responsive to determining that the incoming data signal is the secure data signal, and prevent the incoming data from being communicated to the one or more onboard systems responsive to determining that the incoming data signal is the insecure data signal.