Robust physical and virtual identity association
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Solution Overview
Problem
Current vehicle-to-vehicle communication systems lack robust association methods for physical and virtual identities, making them susceptible to false information from third parties, especially when multiple vehicles have similar physical characteristics and visible light channels are intercepted.
Innovation Solution
Implementing a challenge-response protocol using both wireless and visible light communication channels, synchronized with a shared timeline, to verify the association of physical and virtual identities, with encryption methods such as session key or public key encryption to secure the communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If wireless communication channels are used for vehicle-to-vehicle communication, then information exchange between vehicles is enabled, but the channels become visible and susceptible to interception by third parties
Solution Approach 1:
The patent introduces a second communication dimension by using both wireless communication channels and visible light communication channels simultaneously. The visible light channel provides a covert communication path that is not susceptible to traditional wireless interception, thereby resolving the vulnerability of single-channel wireless communication while maintaining information exchange capability.
2Loss of information
If perception sensors detect multiple target vehicles, then comprehensive situational awareness is achieved, but it becomes difficult to verify which virtual identity corresponds to the correct physical identity
Solution Approach 1:
The patent implements a challenge-response protocol where the ego vehicle sends a challenge to a target vehicle through the wireless channel, and the target vehicle responds through the visible light channel. This feedback mechanism allows the ego vehicle to verify that the visible light communication indeed originates from the detected physical vehicle, thereby ensuring accurate identity association among multiple detected vehicles.
Solution Approach 2:
The challenge-response protocol acts as an intermediary verification mechanism between the physical vehicle detection and virtual identity assignment. By introducing this verification step, the system can reliably associate virtual identities with physical vehicles even when multiple vehicles are detected, resolving the identity association ambiguity.
3Object-affected harmful factors
If a third party vehicle blocks the line of sight between ego vehicle and target vehicle, then visible light identification is prevented, but the third party can intercept and re-transmit visible light communications to pose as the target vehicle
Solution Approach 1:
The patent performs preliminary association of physical and virtual identities through the challenge-response protocol before normal communication begins. By establishing the correct identity mapping in advance through verified challenge-response exchanges, the system creates a trusted baseline that prevents third parties from successfully executing relay attacks, even when they can intercept visible light communications.
Data Source
AI summary
A system within an ego vehicle for robust association of a physical identity and a virtual identity of a target vehicle includes a data processor, including a wireless communication module and a visible light communication module, positioned within an ego vehicle, and a plurality of perception sensors, positioned within the ego vehicle and adapted to collect data related to a physical identity of the target vehicle and to communicate the data related to the physical identity of the target vehicle to the data processor via a communication bus, the data processor within the ego vehicle adapted to receive, via a wireless communication channel, data related to a virtual identity of the target vehicle, associate the physical identity of the target vehicle with the virtual identity of the target vehicle, and initiate, via the wireless communication channel and a visible light communication channel, a challenge-response protocol between the ego vehicle and the target vehicle.