Driver Gaze Warning Logic With Location-Specific Viewing Thresholds
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Solution Overview
Problem
Existing inattention warning systems generate unnecessary warnings when the required gaze-off-road time varies based on road type, leading to driver annoyance due to inappropriate timing of warnings.
Innovation Solution
An inattention warning system that includes a detection device to determine the driver's viewing direction and face orientation, accumulating viewing information to adjust warning generation based on required viewing areas and times specific to each location, ensuring warnings are generated only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the required gaze-off-road time is set based on road type (intersections, merging lanes, curved roads), then the warning system can account for different driving scenarios, but inattention warnings are generated when not needed and are not generated when needed
Solution Approach 1:
The patent applies local quality by transitioning from uniform road-type-based gaze requirements to location-specific personalized requirements. Each location along the route has its own customized gaze-off-road time threshold based on actual local conditions (traffic density, weather, road geometry), rather than applying a single road-type classification. This ensures warnings are generated with high precision for each specific location, eliminating both false warnings and missed warnings.
2Ease of operation
If a fixed required gaze-off-road time is used for all situations, then the system is simple to operate, but inattention warnings are generated unnecessarily when drivers need to check safety
Solution Approach 1:
The patent applies dynamics by making the required gaze-off-road time flexible and adaptive rather than fixed. The system dynamically adjusts the threshold based on real-time conditions including location characteristics, driver behavior patterns, traffic situation, and environmental factors. This dynamic adjustment eliminates unnecessary warnings while maintaining system simplicity through automated adaptation.
Solution Approach 2:
The system applies self-service by automatically learning and adapting to each driver's behavior patterns and needs. The system accumulates viewing information for each driver and autonomously determines personalized required viewing times without requiring manual input or configuration from the driver, thereby reducing unnecessary warnings while maintaining ease of use.
3Reliability
If the required gaze-off-road time varies by location, then warning accuracy improves, but the system complexity increases due to data accumulation and processing requirements
Solution Approach 1:
The patent applies universality by designing a multi-functional integrated processing system that simultaneously performs multiple tasks: accumulating viewing information, determining location characteristics, analyzing traffic conditions, weather assessment, driver behavior learning, and dynamic threshold adjustment. This unified approach manages system complexity through functional integration while achieving high warning accuracy through comprehensive data processing.
Solution Approach 2:
The system applies feedback by continuously monitoring driver viewing behavior and comparing it against dynamically determined required viewing times. The system accumulates viewing information, processes it through multiple analysis layers (location, traffic, weather, driver patterns), and uses the results to adjust warning generation in real-time. This closed-loop feedback mechanism ensures high accuracy while managing complexity through iterative learning and adaptation.
Data Source
AI summary
A detection device configured to detect a viewing direction of a driver of a vehicle is provided. Viewing information is accumulated in a data accumulation unit. The viewing information includes a required viewing area and a required viewing time of the driver of the vehicle when the driver took a gaze off a road for a necessary visual check at each point where the vehicle travels. The viewing information accumulated in the data accumulation unit is acquired from the data accumulation unit. The warning generation unit does not generate the inattention warning when the viewing direction of the driver of the vehicle is directed toward the required viewing area for a current location of the vehicle for not more than the required viewing time for the current location of the vehicle.