Vehicle Driver Abnormality Detection for Adaptive Travel Control
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Solution Overview
Problem
Existing vehicle control devices struggle to ensure safety during vehicle travel when a driver exhibits abnormal behavior or signs of illness, as they often fail to detect these conditions early enough to initiate appropriate assistance.
Innovation Solution
A vehicle control device equipped with a detection unit to monitor driver motion, vehicle behavior, and biological information, an abnormal sign determination unit to assess these inputs, and a vehicle controller to implement various control measures based on the determined abnormality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If vehicle control devices use conventional driver monitoring methods, then device complexity is reduced, but detection precision of driver abnormality is insufficient
Solution Approach 1:
The driver monitoring system is segmented into multiple independent detection modules: motion detection unit (monitoring head position, steering wheel operation), biological information detection unit (heart rate, respiratory rate, skin conductance), and vehicle behavior detection unit (lane deviation, speed fluctuations). Each module independently monitors specific parameters and feeds results to the abnormal sign determination unit, enabling comprehensive detection without requiring a single complex system.
Solution Approach 2:
The abnormal sign determination unit serves multiple functions: it integrates data from all detection units, determines abnormal signs using predetermined criteria, determines full abnormality states, and triggers appropriate vehicle control responses. This multi-functional approach consolidates what would otherwise require separate systems into a single versatile component.
2Reliability
If vehicle control devices detect driver abnormality later, then false detection is reduced, but safety of vehicle travel deteriorates
Solution Approach 1:
The system performs preliminary detection of abnormal signs before full abnormality occurs. The abnormal sign determination unit continuously monitors for early indicators such as slight head movements, minor heart rate changes, or small steering corrections. When abnormal signs are detected, the system prepares for potential abnormality and can initiate early warning or preventive measures before the driver fully loses control.
Solution Approach 2:
The system implements continuous feedback loops where detection results are immediately fed back to the abnormal sign determination unit, which updates the abnormality assessment in real-time. This closed-loop feedback enables the system to rapidly respond to changing driver conditions, adjusting control measures dynamically based on the latest detection data.
3Measurement precision
If vehicle control devices implement comprehensive monitoring, then detection accuracy improves, but ease of operation deteriorates
Solution Approach 1:
The abnormal sign determination unit automatically processes data from all detection units using predetermined determination criteria, eliminating the need for manual assessment. The system self-manages the complex task of integrating multiple data streams and making abnormality judgments, reducing the operational burden on drivers or operators while maintaining high detection accuracy.
4Reliability
If vehicle control devices respond to driver abnormality, then safety of vehicle travel improves, but device complexity increases
Solution Approach 1:
The vehicle controller implements dynamic control measures that adapt to the severity and type of detected abnormality. Rather than a single fixed response, the system can apply different levels of intervention: from subtle steering assistance for minor abnormalities to full autonomous control for severe cases. This dynamic approach allows the controller to maintain simplicity for normal operation while providing comprehensive safety responses when needed.
Data Source
AI summary
A vehicle control device includes a detection unit that detects a motion of a driver of a vehicle, a behavior of the vehicle, and biological information of the driver, an abnormal sign determination unit that determines whether there is an abnormal sign on the driver based on the motion of the driver, the behavior of the vehicle, and the biological information of the driver, and a vehicle controller that performs different types of vehicle control according to a situation of the abnormal sign on the driver.