Vehicle Object Detection Error Handling with User Correction Feedback
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Solution Overview
Problem
Ultrasonic object detection systems in vehicles take an extended time to recover from detection errors caused by external factors like snow or mud, leading to user inconvenience due to delayed restoration of normal operation.
Innovation Solution
An object detection system with an error-handling control section that notifies users of detection errors and determines if an error correction action has been performed, relaxing cancellation conditions for the error-handling state if the action is confirmed, allowing earlier cancellation of the error state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the object detection system implements strict error-handling protocols to ensure reliable detection, then detection reliability is improved, but the time required to restore normal operation after an error increases
Solution Approach 1:
The system performs preliminary actions by notifying the user of the error condition and monitoring for correction actions before fully restoring the error-handling state. This allows the system to prepare for restoration in advance while ensuring the error cause is actually addressed, thus reducing overall restoration time without compromising reliability.
Solution Approach 2:
The system implements feedback by continuously monitoring whether error correction actions have been performed by the user and using this information to dynamically adjust the restoration process. When correction is detected, the system accelerates restoration; when no correction is detected, it maintains stricter error-handling, thus resolving the contradiction between reliability and restoration time.
2Measurement precision
If the system maintains a conservative error-handling state for an extended period to confirm normal operation, then detection accuracy is improved, but user convenience deteriorates due to prolonged system unavailability
Solution Approach 1:
The system dynamically adjusts the error-handling state based on real-time detection of user correction actions. Rather than maintaining a fixed conservative state, the system transitions from a strict error-handling mode to a restored mode once correction is detected, thus improving user convenience while maintaining detection accuracy through adaptive control.
Solution Approach 2:
The system enables self-service by allowing the user to correct the error condition (such as removing snow from the sensor) and automatically detecting this correction. The system then autonomously proceeds with restoration without requiring additional user intervention or prolonged waiting, thus improving user convenience while maintaining accuracy through user-initiated correction.
3Productivity
If the error-handling state is cancelled immediately upon error occurrence to maintain system availability, then productivity is improved, but detection reliability deteriorates due to potential undetected errors
Solution Approach 1:
The system performs preliminary monitoring and notification actions before cancelling the error-handling state. By notifying the user and monitoring for correction actions in advance, the system ensures that errors are properly addressed before restoration, thus maintaining detection reliability while enabling timely system availability through structured preliminary procedures.
Solution Approach 2:
The system uses feedback from user actions (such as removing snow or correcting sensor issues) to determine when to cancel the error-handling state. This feedback mechanism ensures that the system only restores availability when the error cause has been addressed, thus maintaining reliability while improving productivity through condition-based restoration rather than immediate or delayed cancellation.
Data Source
AI summary
An object detection device is applied to an object detection system which includes an object detection sensor installed in a vehicle so as to be oriented outward to detect an object around the vehicle. The object detection device includes: an error-handling control section that notifies a user of a detection error, if any, occurring in the object detection sensor, and brings the object detection system into an error-handling state; an action determination section that determines whether an error correction action has been performed by a user to correct the detection error, under conditions where the user has been notified of the detection error occurring in the object detection sensor; and a cancellation control section that relaxes predetermined cancellation conditions for cancelling the error-handling state when the error correction action is determined to have been performed, compared to when not performed.