Driver Gaze Monitoring With Dynamic Sight Range for False Warnings
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Solution Overview
Problem
Existing inattentive driving warning systems, such as those described in JP 2007-226666 A, often issue unnecessary warnings when a driver is safely confirming their surroundings, leading to driver distraction and potential safety issues.
Innovation Solution
An information processing device and method that acquires host vehicle information and sets an allowable range for the driver's sight based on this information, determining if the driver is within this range and only issuing notifications when the driver is not, thereby preventing unnecessary warnings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If the driver monitoring system determines inattentive driving based on fixed directional criteria, then the detection simplicity is improved, but the false positive rate increases when drivers are performing safety confirmations
Solution Approach 1:
The patent applies dynamics by making the allowable sight range adjustable and changeable based on driving conditions. The control part dynamically modifies the predetermined allowable range according to vehicle state information (turning, lane changing, intersection passage) to accommodate legitimate safety confirmation behaviors while maintaining detection effectiveness for actual inattentive driving.
Solution Approach 2:
The patent changes the parameters of the allowable sight range based on different driving scenarios. By adjusting the range parameters according to vehicle state information such as turning operations, lane changes, and intersection passage, the system adapts its detection criteria to distinguish between safe safety confirmations and actual inattentive driving.
2Reliability
If the system issues warnings for all detected inattentive driving cases, then the safety warning coverage is improved, but driver distraction increases due to unnecessary warnings
Solution Approach 1:
The system performs preliminary assessment by evaluating both the driver's sight direction and the current vehicle state before issuing warnings. This preliminary action filters out cases where the driver is performing legitimate safety confirmations during turning, lane changing, or intersection passage, preventing unnecessary warnings that would distract the driver.
Solution Approach 2:
The control part uses feedback from vehicle state information to modulate the warning issuance. By continuously monitoring vehicle operations and comparing them against the driver's sight direction, the system provides feedback-based decision making that suppresses warnings during legitimate safety confirmations while maintaining warnings for actual inattentive driving.
3Reliability
If the allowable sight range is set to cover all safety confirmation directions, then the false positive rate decreases, but the system becomes less effective at detecting actual inattentive driving
Solution Approach 1:
The patent segments the allowable sight range into different configurations based on specific driving scenarios. Rather than using a single broad range, the system divides the detection space into context-appropriate segments (e.g., wider ranges during turning operations, narrower ranges during straight-line driving), enabling precise detection that adapts to each situation.
Solution Approach 2:
The system applies local quality by customizing the allowable sight range characteristics for different driving locations and conditions. The control part adjusts the range parameters locally according to the specific vehicle state, providing different detection strictness levels in different contexts to optimize both false positive reduction and inattentive driving detection.
Data Source
AI summary
An information processing device and an information processing method that prevent unnecessary warning are provided. An information processing device includes a host vehicle information acquisition part configured to acquire host vehicle information on a host vehicle, a setting part configured to set an allowable range for a driver's sight of the host vehicle based on the host vehicle information, a driver information acquisition part configured to acquire driver information on the driver, a determination part (inattentive driving determination part) configured to determine whether or not the driver is looking at the allowable range based on the allowable range and the driver information, and an output part (sound output part, vibration part, display part) configured to output a predetermined notification based on the determination of the determination part (inattentive driving determination part).