Driver State Determination Using Concurrent Abnormality Detection
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Solution Overview
Problem
Existing driving support systems face challenges in accurately determining a driver's difficult state, leading to erroneous detection, particularly when normal state changes are misinterpreted as driving difficulty.
Innovation Solution
A state determination device comprising a driver abnormality detection unit, a complementary abnormality detection unit, and an integrated determination unit that requires concurrent detection of driver state abnormalities and either driving operation or vehicle state abnormalities to confirm a driving difficult state, thereby reducing false positives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the driving support system determines driving difficult state based solely on driver state abnormalities, then the response speed to driver emergencies is improved, but the accuracy of detection deteriorates due to erroneous detection of normal state changes
Solution Approach 1:
The patent combines multiple detection dimensions (driver state abnormalities, driving operation abnormalities, and vehicle state abnormalities) into a unified determination system. The integrated determination unit merges these three types of abnormalities to comprehensively determine driving difficult state, thereby improving detection accuracy while maintaining response speed through simultaneous multi-dimensional monitoring.
Solution Approach 2:
The system implements feedback mechanisms where the determination result of driving difficult state is fed back to adjust the monitoring and detection processes. When a driving difficult state is determined, the system activates driving support functions, and the continuous monitoring provides feedback to confirm or revise the determination, reducing erroneous detection of normal state changes.
2Measurement precision
If the system monitors multiple abnormality types concurrently, then the accuracy of driving difficult state determination is improved, but the device complexity increases
Solution Approach 1:
The patent segments the complex determination system into three independent detection modules: driver state abnormality detection unit, driving operation abnormality detection unit, and vehicle state abnormality detection unit. Each module independently monitors its specific dimension, and the integrated determination unit combines their outputs. This segmentation reduces overall system complexity while maintaining high detection accuracy through multi-dimensional monitoring.
Data Source
AI summary
A state determination device to determine that a driver driving a vehicle is in a driving difficult state detects an abnormality in a state of the driver, and detects at least one of an abnormality in a driving operation input by the driver or an abnormality in a traveling state of the vehicle. In response to detecting the abnormality in the state of the driver alone, the state determination device does not determine that the driver is in the driving difficult state but determines that the driver is in the driving difficult state in response to detecting the abnormality in the state of the driver and additionally detecting the at least one of the abnormality in the driving operation input by the driver or the abnormality in the traveling state of the vehicle.