Driver Gaze Verification for Autonomous Lane Change Safety
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Solution Overview
Problem
The safety of lane changes in autonomous driving systems can be compromised due to unforeseen behavior of other vehicles, even if detected by sensors.
Innovation Solution
An autonomous driving system that includes an internal vehicle camera to capture the driver's face and determine their line of sight, with a processor judging whether the driver has checked the surroundings and approved the lane change, using different safety conditions based on the presence of other vehicles in the destination lane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system requires driver confirmation and multiple safety checks for lane changes, then safety is improved, but the complexity of the control system increases
Solution Approach 1:
The safety verification process is segmented into distinct conditions: when no other vehicle is detected (first condition requiring driver action) and when another vehicle is detected (second condition with more severe requirements). This segmentation allows the system to apply appropriate safety checks based on the specific situation, improving overall safety while managing complexity through conditional logic.
Solution Approach 2:
The safety verification requirements dynamically adjust based on the detection status of other vehicles. The system transitions between different safety verification modes (first condition vs. second condition) depending on the environmental context, allowing flexible adaptation to varying risk levels without requiring a uniformly complex control system.
2Ease of operation
If the system uses sensor detection alone for lane change safety, then the ease of operation is improved, but the reliability of safety confirmation deteriorates due to sensor malfunction or unforeseen vehicle behavior
Solution Approach 1:
The system incorporates driver feedback through action detection (monitoring driver operations) to verify safety before lane changes. This feedback mechanism complements sensor detection, creating a multi-layered verification system that improves reliability while maintaining ease of operation through automated monitoring of driver responses.
Solution Approach 2:
The system performs preliminary safety verification by detecting driver actions and confirming safety conditions before executing the lane change. This preliminary check ensures that both sensor data and driver verification are satisfied, enhancing reliability while keeping the operation smooth through pre-validation of safety conditions.
3Ease of operation
If the system applies the same safety conditions for all lane change scenarios, then the ease of operation is improved, but the adaptability to different risk situations deteriorates
Solution Approach 1:
The system applies different safety verification qualities to different situations: the first condition applies when no other vehicle is detected, while the second condition (more severe) applies when another vehicle is detected. This local differentiation of safety requirements allows the system to adapt to varying risk levels while maintaining ease of operation through automated condition assessment.
Data Source
AI summary
The autonomous driving system includes an internal vehicle camera, a vehicle detection device, and a processor configured to detect an angle of a facial direction or a line of sight of the driver, judge whether the driver has checked safety of the surroundings of the vehicle based on the angle, and control autonomous driving of the vehicle. The processor is configured to start a lane change of the vehicle when it is judged that the driver has checked the safety of the surroundings of the vehicle. The processor is configured to judge that the driver has checked the safety when a first condition has been satisfied if another vehicle has not been detected in a destination lane, and judge that the driver has checked the safety when a second condition more severe than the first condition has been satisfied if another vehicle has been detected in the destination lane.