Platoon Sensor Data Sharing Profiles to Cut Redundant V2V Traffic
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Solution Overview
Problem
In vehicle platoons, redundant sensor data sharing between vehicles wastes computing, communication, and power resources, and can lead to the dissemination of unreliable data, affecting the accuracy of environmental and vehicle characteristic determination.
Innovation Solution
A sensor data sharing system that classifies vehicles within a platoon based on their sensor capabilities and positions, determining a sensor data sharing profile to optimize data sharing frequency and type, and allows vehicles to override parameters to reduce redundancy and ensure reliable data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all vehicles in a platoon share sensor data with all other vehicles, then data availability and coverage are improved, but resource consumption (computing, communication, power) increases and data reliability decreases due to redundancy
Solution Approach 1:
The patent segments the platoon into different vehicle positions (lead, follow, trailing) and assigns specific sensor data sharing responsibilities to each segment. Lead vehicles share forward-facing sensor data, while trailing vehicles share rearward-facing data, eliminating redundant transmissions and optimizing resource usage while maintaining comprehensive data coverage.
Solution Approach 2:
The patent implements location-specific data sharing where each vehicle shares sensor data based on its position in the platoon. Vehicles adjust their data sharing behavior according to local conditions - lead vehicles prioritize forward obstacle detection data, while trailing vehicles focus on rearward sensor information, ensuring optimal data distribution without unnecessary redundancy.
2Speed
If all vehicles share sensor data frequently, then real-time awareness is improved, but communication overhead and processing load increase
Solution Approach 1:
The patent implements periodic data sharing intervals adjusted according to platoon dynamics and sensor event triggers. Instead of continuous transmission, vehicles share sensor data at optimized intervals, reducing communication overhead while maintaining real-time awareness through event-driven updates when significant changes occur in the environment.
3Loss of information
If redundant sensor data is shared, then data coverage is improved, but computing resources are wasted processing duplicate information
Solution Approach 1:
The patent extracts and removes redundant sensor data from the sharing process by identifying which vehicles already possess certain sensor information based on their positions and sensor capabilities. Vehicles only share sensor data that is not already available to other platoon members, eliminating duplicate processing while maintaining comprehensive environmental coverage.
Data Source
AI summary
Various aspects of the present disclosure generally relate to sensor systems. In some aspects, a method may include determining a classification of a first vehicle of a plurality of vehicles traveling in a platoon. The method may include causing, based at least in part on the classification, the first vehicle to share sensor data with a second vehicle in the platoon according to a sensor data sharing profile, wherein the sensor data is associated with a sensor system of the first vehicle. Numerous other aspects are provided.