Autonomous Vehicle Ad Hoc Networking for Emergency Traffic Coordination
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Solution Overview
Problem
There is a need for secure and efficient management of autonomous vehicle traffic in emergency situations, as breaches in network integrity can have negative consequences, and existing methods do not effectively address coordinated behavior and secure communication among autonomous vehicles.
Innovation Solution
A method and system that establish a wireless ad hoc network among autonomous vehicles to exchange data and collaboratively compute intent instructions for mitigating anomalous traffic conditions, using wireless communication, intent description languages, and authentication protocols to ensure secure communication and coordinated behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless ad hoc network is established among autonomous vehicles to enable secure communication and coordinated behavior, then the reliability of traffic management in emergency situations is improved, but the device complexity increases due to the need for authentication protocols, encryption mechanisms, and network management systems
Solution Approach 1:
The system segments the traffic management function by establishing a wireless ad hoc network among autonomous vehicles, where each vehicle acts as an independent node with authentication and communication capabilities. This segmentation allows distributed decision-making and coordinated behavior without requiring a centralized control system, thereby improving reliability while managing complexity through modular architecture
Solution Approach 2:
The patent introduces an intermediary authentication mechanism that verifies the integrity of communication between vehicles in the ad hoc network. This intermediary layer ensures secure data exchange and coordinated behavior without requiring complex point-to-point encryption between all vehicle pairs, thus improving reliability while controlling the growth of system complexity
2Productivity
If collaborative computation is implemented among autonomous vehicles to compute intent instructions, then the productivity of emergency response is improved, but the loss of time increases due to the computation and communication overhead required for collaboration
Solution Approach 1:
The system implements partial collaboration by having autonomous vehicles exchange only critical intent information and sensor data necessary for emergency response, rather than performing complete collaborative computation of all vehicle parameters. This selective information exchange improves emergency response productivity while minimizing the time loss associated with extensive computation and communication overhead
Solution Approach 2:
The patent applies preliminary action by pre-establishing the wireless ad hoc network and authentication mechanisms before emergency situations occur. This allows vehicles to quickly exchange intent instructions and sensor data during emergencies without the overhead of setting up communication protocols and authentication in real-time, thereby improving productivity while reducing time loss
Data Source
AI summary
A method for traffic management of autonomous vehicles in emergency situations is disclosed. Upon receipt of an emergency signal including information on an anomalous traffic condition by an autonomous vehicle, the method includes broadcasting the emergency signal using a wireless communication device. The method further includes establishing an ad hoc wireless network among a plurality of autonomous vehicles and exchanging data among the vehicles of the network. The method further includes collaboratively computing intent instructions for the vehicles of the network to avoid or mitigate the anomalous traffic condition, distributing the instructions among the vehicles of the network, and executing the instructions by each corresponding vehicle.