In-Vehicle Cyberattack Path Switching for Emergency Communications
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems fail to maintain high-priority communications when a cyberattack is detected in vehicles equipped with in-vehicle devices, as they shut off all external communication, including critical services like automatic emergency calls.
Innovation Solution
An in-vehicle device with a security management unit detects cyberattacks and switches communication paths from a compromised base station to a secure relay station, maintaining high-priority connections through managed wireless interfaces and relay stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication is shut off when a cyberattack is detected, then vehicle security is improved, but high-priority communications such as automatic emergency calls are blocked
Solution Approach 1:
The communication system is segmented into multiple independent communication paths: a direct path through the base station and an alternative path through relay stations. When a cyberattack is detected on the base station path, only that specific path is blocked while alternative paths remain operational, allowing high-priority communications to continue without compromising overall security.
Solution Approach 2:
Relay stations are introduced as intermediary devices that facilitate communication between the in-vehicle device and external networks. These relay stations provide an indirect communication route that bypasses the compromised base station, enabling high-priority communications to maintain connectivity through a trusted intermediate node while the direct base station path is secured against attacks.
2Object-affected harmful factors
If all external communication is blocked to prevent cyberattacks, then security against attacks is improved, but legitimate emergency communications are lost
Solution Approach 1:
Different quality levels of communication paths are implemented: the direct base station path provides normal communication quality under secure conditions, while the relay station path provides alternative communication quality when attacks are detected. The system selectively activates the appropriate path based on security conditions, ensuring that emergency communications maintain adequate quality even when the primary path is compromised.
Solution Approach 2:
The system pre-establishes relay station connections and communication paths before cyberattacks occur. When a base station is compromised, the in-vehicle device can immediately switch to the pre-configured relay station path without interruption, ensuring that emergency communications are maintained without loss of information or delay.
3Device complexity
If a single communication path is used for all services, then system complexity is reduced, but the ability to maintain high-priority services during attacks is compromised
Solution Approach 1:
The communication system implements dynamic path selection where the active communication path changes based on security conditions. The in-vehicle device monitors base station security status and automatically switches between the direct base station path and the relay station path. This dynamic adaptation allows the system to maintain flexibility and respond to cyberattacks while managing complexity through automated control.
Data Source
AI summary
An in-vehicle device configured to be installed in a vehicle, the in-vehicle device including a processor that is configured to: detect a cyberattack against the vehicle; manage a plurality of wireless interfaces for performing wireless communication with an outside of the vehicle; manage a plurality of relay stations that perform communication via any wireless interface of the plurality of wireless interfaces; and select a relay station of the plurality of relay stations that is connectable to the in-vehicle device, wherein the processor switches a communication path to a path that is routed via the relay station selected and that is different from a communication path that was in use when the cyberattack was detected when the processor detects the cyberattack.