Radar Lidar Fault Detection via Camera Comparison
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Solution Overview
Problem
Modern vehicles equipped with detection and ranging devices like Radar and Lidar face challenges in detecting faults such as calibration errors, which are difficult to electronically detect as the devices' electronic functions remain unaffected, impacting navigation and collision avoidance systems.
Innovation Solution
A system and method that utilize a vehicle detection and ranging device, a camera, and physical processors to receive and analyze data from both sources, comparing detection and ranging data with image data to determine faults and transmit notification signals, enabling fault detection and recovery protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If detection and ranging devices (Radar/Lidar) are used for vehicle functions, then navigation and collision avoidance capabilities are improved, but calibration errors and faults become difficult to detect electronically
Solution Approach 1:
The patent introduces a camera as an intermediary device to detect faults in the detection and ranging system. The camera captures visual data that serves as a reference to verify the accuracy of radar/lidar measurements, enabling indirect detection of calibration errors and system faults through comparison of data from multiple sources
Solution Approach 2:
The system implements feedback by continuously comparing detection and ranging data with corresponding image data from the camera. When discrepancies exceed a threshold, the system generates fault notifications and can trigger recovery protocols, creating a closed-loop feedback mechanism that monitors system health and enables automatic correction
2Ease of operation
If electronic detection methods are used for faults, then power failure and data transmission faults are easily detected, but calibration errors remain undetected
Solution Approach 1:
The camera system serves multiple functions: it acts as both a primary detection device for visual data and as a reference instrument for validating radar/lidar calibration. This multi-functional approach allows a single device to address both ease of detection and calibration accuracy verification
3Device complexity
If detection and ranging data is used alone, then system complexity is reduced, but fault detection capability is insufficient
Solution Approach 1:
The patent merges detection and ranging data with image data from the camera into a unified fault detection system. By combining these data sources and processing them together through a single processing unit, the system achieves comprehensive fault detection capability while maintaining relatively simple system architecture
Data Source
AI summary
A system for vehicular detection and ranging fault detection, notification, and recovery is provided. The system may include at least one detection and ranging device, at least one camera, and at least one physical processing unit configured with program instructions. The processing unit may be configured to analyze detection and ranging data of an object from the detection and ranging device, analyze image data received of the object from the at least one camera and, based on a comparison, detect a detection and ranging fault.