Driver Concentration Detection via Steering Angle Variance
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Solution Overview
Problem
Existing systems for determining driver concentration, such as those using cameras and pulse sensors, are economically inefficient due to the complexity of components required and can only detect abnormal driving due to drowsiness, failing to address broader issues like driver negligence and mental concentration.
Innovation Solution
A method and system that calculates a driver's concentration based on variations in the steering wheel angle and vehicle driving status information acquired through a front camera sensor, converting this data into statistical information to determine driving concentration and providing a warning when necessary, without requiring additional image or physical data for biological measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If camera-based driver monitoring systems are used to detect drowsiness, then driver concentration can be determined, but the system complexity and cost increase significantly
Solution Approach 1:
The patent extracts only the necessary steering angle data from the vehicle's existing sensor system, rather than implementing a complete camera-based driver monitoring system. By taking out only the essential measurement (steering angle variations) and processing it through statistical analysis, the system achieves driver concentration detection without the complexity of camera hardware, image processing algorithms, and associated computational resources.
2Reliability
If pulse sensors and image processing hardware are installed to monitor driver state, then drowsiness detection is possible, but the economic efficiency decreases
Solution Approach 1:
The system utilizes the vehicle's existing steering angle sensor to monitor driver concentration, allowing the vehicle's own components to serve the dual purpose of steering control and driver state monitoring. This self-service approach eliminates the need for additional pulse sensors, camera hardware, and specialized processing units, thereby maintaining detection reliability while significantly improving economic efficiency.
3Device complexity
If statistical processing of steering angle data is performed, then driving concentration can be determined without complex hardware, but data processing time increases
Solution Approach 1:
The patent applies partial action by using only the variance and standard deviation of steering angle data for driver concentration determination, rather than performing comprehensive statistical analysis. This selective statistical processing provides sufficient information to assess driver concentration while minimizing computation time, achieving a balance between simplicity and processing efficiency.
Data Source
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AI summary
A method and system for determining driving concentration which is capable of analyzing a driver's driving concentration on the basis of variation of a steering angle and driving status information of a vehicle acquired from a front camera sensor. The method includes storing output data of a steering angle sensor and a front camera sensor mounted in a vehicle at a predetermined time interval, calculating a quantitative index include a value for recognizing a vehicle status based on information stored in a storage unit, statistically processing the calculated value to output status information which is an index for determining driving concentration, and comparing the information calculated in the statistically processing to the predetermined reference data and determining the driving concentration according to the comparison result.