Vehicle Gaze Tracking for Adaptive Message Display Timing
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Solution Overview
Problem
Existing vehicle notification systems fail to ensure that drivers comprehend messages displayed on vehicle screens, as they either maintain messages for a fixed duration regardless of comprehension or require manual dismissal without verifying understanding.
Innovation Solution
A gaze tracking system is integrated into vehicles to monitor operator gaze, ensuring messages are displayed for a duration sufficient for comprehension, with an adaptive timer that learns from operator interactions to set optimal display times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the message is displayed for a fixed predetermined duration, then the display time is consistent and predictable, but the system cannot ensure the operator has actually comprehended the message
Solution Approach 1:
The system uses gaze tracking to provide feedback on operator attention state, continuously monitoring whether the operator is looking at the display screen. This feedback loop allows the timer to adjust message display duration based on actual comprehension indicators rather than using a fixed predetermined time, thereby ensuring reliable message comprehension while managing system complexity through targeted sensor integration.
2Duration of action of moving object
If the message display duration is extended to ensure comprehension, then more time is available for operator understanding, but the message is displayed for excessive lengths of time
Solution Approach 1:
The message display duration is made dynamic rather than static. The system continuously adjusts the display time based on real-time gaze tracking data, extending the display only as long as necessary for comprehension. This dynamic approach prevents excessive display times by automatically terminating the message once comprehension is confirmed through sustained gaze detection, thereby optimizing the balance between ensuring understanding and minimizing unnecessary display duration.
3Ease of operation
If manual dismissal is required without verification, then the system is simple to operate, but there is no way to know if the operator has viewed the message
Solution Approach 1:
The system performs self-verification of message comprehension through automated gaze tracking without requiring additional operator actions. The gaze tracking system independently monitors and verifies whether the operator has viewed the message for sufficient duration, eliminating the need for separate verification steps while maintaining simple operation. The operator simply needs to look at the message, and the system automatically confirms comprehension and manages dismissal timing.
Data Source
AI summary
A vehicle includes a display screen communicatively coupled to a vehicle controller. A gaze tracking system in the vehicle includes at least one camera defining a field of view including at least a vehicle operator's face and a tracking control module is configured to determine a gaze direction of the vehicle operator based at least in part on the field of view. The controller includes a display timing process module configured to cause a message to be displayed on the display screen while a gaze of the vehicle operator is directed at the display screen for a predetermined duration.