Vehicle Message Occlusion Detection in V2V Networks
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Solution Overview
Problem
Current vehicle-to-vehicle communication systems fail to reliably transmit messages between vehicles due to line-of-sight requirements and message occlusion caused by objects between sending and receiving vehicles, which can lead to incomplete information and reduced safety in collision avoidance scenarios.
Innovation Solution
A vehicle warning system that detects potential message occlusions by analyzing remote vehicle information and host vehicle information to output alerts when messages may be occluded, using wireless communication links and sensors to determine positional relationships and vehicle sizes, thereby informing drivers of potential hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If V2V communication systems transmit messages between vehicles, then collision avoidance capability is improved, but message transmission reliability deteriorates when objects occlude the communication path
Solution Approach 1:
The system performs preliminary detection of potential occluding objects (vehicles, pedestrians, cyclists) in the communication path between host and remote vehicles. By identifying these occlusion risks before they block messages, the system can proactively alert drivers to maintain awareness and take preventive actions, thereby maintaining message transmission reliability even when occlusion occurs
Solution Approach 2:
The system introduces an intermediary detection and alert mechanism that mediates between the V2V communication system and the driver. This intermediary layer detects potential message occlusions and provides supplemental information to the driver, compensating for the information loss that would otherwise occur when messages are blocked by occluding objects
2Reliability
If the system alerts drivers to all potential hazards, then driver awareness is improved, but false alarms increase when messages are merely delayed not blocked
Solution Approach 1:
The system applies different alert qualities based on the specific occlusion scenario. It evaluates multiple factors including the type of occluding object (vehicle, pedestrian, cyclist), the message trajectory (frontal, lateral, rearward), and the temporal pattern of message reception. By providing localized, context-specific alerts rather than generic warnings, the system improves driver awareness reliability while minimizing false alarms that could harm driver trust
3Measurement precision
If the system monitors all message trajectories for occlusion, then detection accuracy is improved, but computational complexity increases
Solution Approach 1:
The system segments the monitoring task by dividing the communication environment into distinct message trajectories (frontal, lateral, rearward) and evaluating occlusion risks separately for each trajectory. This segmentation allows the system to maintain high detection accuracy by focusing computational resources on specific directions where occlusion risks differ, rather than uniformly processing all possible message paths
Data Source
AI summary
A method for providing information to a driver of a vehicle includes receiving, at a host vehicle via a wireless electronic communication link, messages that each include remote vehicle information for a respective one of the one or more remote vehicles; identifying host vehicle information for the host vehicle; determining that a potential message occlusion exists based at least in part on the remote vehicle information for the one or more remote vehicles and the host vehicle information; and in response to determining that a potential message occlusion exists, causing a message occlusion alert to be output.