Dynamic Recording Threshold Adjustment for Vehicle Imaging
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Solution Overview
Problem
Existing driving support systems face challenges in accurately determining when to record image data, leading to either missed recordings of critical events or unnecessary data storage, particularly when transitioning between different driving scenarios such as parking, exiting a parking space, or navigating off-road terrain.
Innovation Solution
A driving support system that employs a processor to dynamically adjust recording thresholds based on specific driving support states, using sensors to determine if predetermined conditions are met, thereby optimizing the recording of image data only when necessary and minimizing unnecessary recordings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a low recording threshold is used when reversing into a parking space, then image data is recorded even for minor contacts with wheel stoppers, but this increases unnecessary recordings. If a high recording threshold is used, then unnecessary recordings are reduced, but critical contacts with other vehicles may be missed
Solution Approach 1:
The patent applies dynamics by making the recording threshold adjustable based on the driving state. The processor dynamically changes the threshold value according to whether the vehicle is reversing into or out of a parking space, transitioning between different threshold levels to match the specific operational context and risk level.
Solution Approach 2:
The patent implements parameter changes by modifying the threshold parameter based on driving state. When reversing into a parking space, a first threshold value is applied; when reversing out, a second (lower) threshold value is applied. This parameter adaptation allows the system to optimize between false positives and missed detections for different scenarios.
2Ease of operation
If the same recording threshold is used for all reversing operations, then the system is simple to operate, but it cannot distinguish between different driving scenarios requiring different recording sensitivity
Solution Approach 1:
The system dynamically adapts the recording threshold based on the detected driving state (reversing into vs. reversing out of parking space). The processor automatically selects appropriate threshold values without requiring manual intervention, maintaining ease of operation while achieving scenario-specific precision.
Solution Approach 2:
The system performs self-service by automatically determining the driving state and selecting the appropriate threshold value. The processor monitors vehicle operations and autonomously adjusts recording parameters without driver input, combining simplicity with intelligent discrimination.
3Reliability
If image data is recorded for all acceleration events above a threshold, then critical events are captured, but storage capacity is quickly consumed by unnecessary data
Solution Approach 1:
The patent changes the threshold parameter based on driving state to optimize recording selectivity. By applying different threshold values for different reversing scenarios, the system reduces unnecessary recordings while maintaining reliable detection of critical events, thereby controlling data volume growth.
Solution Approach 2:
The dynamic adjustment of recording thresholds based on operational context allows the system to be more selective about what is recorded. This reduces the quantity of stored data by excluding non-critical events while maintaining high detection accuracy for genuine incidents.
Data Source
AI summary
The driving support system includes an imaging section installed to a vehicle capable of executing a driving support state, and the imaging section being capable of imaging a imaging subject positioned in surroundings of the vehicle, and a processor connected to the imaging section. The processor is configured to generate image data, determine whether or not a predetermined recording condition has been satisfied, cause the image data to be recorded in the memory in cases in which the recording condition has been determined to have been satisfied, determine whether or not the vehicle is in any of the driving support states, and change the recording condition to a specific recording condition that is the recording condition corresponding to the driving support state of the vehicle in cases in which the vehicle has been determined to be in any of the driving support states.