Vehicle Sensor Data Filtering for Occluded Field-of-View Gaps
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Solution Overview
Problem
Vehicle sensors face occlusion issues and range limitations, leading to incomplete environmental detection, necessitating efficient methods for sharing sensor data between vehicles and infrastructure to enhance situational awareness.
Innovation Solution
A method where a vehicle apparatus monitors its field of view, identifies occluded regions, and transmits a message requesting sensor data from neighboring devices with specific filtering conditions, allowing for the sharing of relevant sensor data via V2V or V2X protocols, enabling the supplementation of occluded areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If sensor data is shared from all neighboring devices without filtering, then the vehicle's situational awareness is improved, but the network congestion and processing overhead increase
Solution Approach 1:
The patent applies local quality by transmitting sensor data selectively based on spatial relevance. Each neighboring device filters its sensor data to include only objects located in the requesting vehicle's occluded regions, rather than transmitting all sensor data universally. This ensures that data transmission is localized to where it is actually needed, reducing overall network congestion while maintaining complete situational awareness.
Solution Approach 2:
The patent extracts only the relevant portion of sensor data that corresponds to the requesting vehicle's occluded field of view. The filtering mechanism extracts and transmits solely the subset of sensor data containing objects in the specified occluded regions, discarding irrelevant data from other areas. This extraction approach minimizes data transmission volume while preserving all necessary information for situational awareness.
2Productivity
If sensor data is filtered to only relevant regions, then the data transmission efficiency is improved, but the complexity of data processing increases
Solution Approach 1:
The patent applies preliminary action by having neighboring devices pre-filter their sensor data according to the requesting vehicle's occluded regions before transmission. The filtering operation is performed in advance at the source device, so that when data is transmitted, it is already optimized for the specific reception needs. This preliminary filtering reduces the processing burden on the requesting vehicle while maintaining high transmission efficiency.
Solution Approach 2:
The patent introduces a message-based intermediary system that carries filtering conditions between devices. The requesting vehicle sends a message defining its occluded regions, which acts as an intermediary specification that guides the filtering process at the neighboring device. This intermediary message structure standardizes the filtering operation and simplifies the processing logic at both sending and receiving ends.
3Loss of information
If the vehicle requests sensor data from all directions, then the complete environmental awareness is improved, but the energy consumption and communication overhead increase
Solution Approach 1:
The patent applies local quality by directing sensor data requests only toward specific occluded regions rather than all directions. The vehicle identifies its precise occluded field of view and requests data only from neighboring devices located in those specific angular ranges. This localized requesting approach maintains complete environmental awareness in critical areas while minimizing energy consumption and communication overhead by avoiding unnecessary requests in visible directions.
Data Source
AI summary
In an aspect, a vehicle apparatus monitors, via a set of sensors communicatively coupled to the vehicle apparatus, a field of view (FOV) of the vehicle apparatus. The vehicle apparatus transmits, based on the monitoring, a first message that requests sensor data from one or more neighboring devices and indicates at least one sensor data filtering condition for the requested sensor data. A communication device receives the first message, and determines whether sensor data is available at the communication device which satisfies the at least one sensor data filtering condition for the requested sensor data. If so, the communication device filters its sensor data based on the at least one sensor data filtering condition, and transmits, to the vehicle apparatus, a second message including the filtered sensor data.