Vehicle Display Selection When Driver Gaze Tracking Fails
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Solution Overview
Problem
Existing display control systems fail to ensure safe driving when line-of-sight information is not detectable due to issues like fogging or software bugs, leading to a decrease in driving safety as essential information cannot be displayed on the intended display apparatus.
Innovation Solution
A display control apparatus and method that includes a first selector for choosing a display apparatus aligned with the driver's line of sight when detectable, and a second selector that estimates and selects an alternative display apparatus more likely to be in the driver's line of sight when line-of-sight information is not outputted, based on historical data to ensure information is displayed safely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If line-of-sight detection is used to select display apparatus, then information is displayed on the correct display apparatus, but when line-of-sight information is not detectable (due to fogging or software bugs), the system cannot select the appropriate display apparatus
Solution Approach 1:
The system pre-establishes default display apparatus selection criteria and alternative selection mechanisms that are activated when line-of-sight detection fails. This preliminary preparation ensures that the system can immediately switch to backup selection methods without interruption, maintaining reliability even when the primary detection method fails.
Solution Approach 2:
The system implements redundant display apparatus selection mechanisms as a cushion against detection failures. By having alternative selection methods ready in advance, the system cushions against the harmful effect of undetectable line-of-sight conditions, ensuring continuous reliable operation.
2Measurement precision
If the system only uses line-of-sight information for display selection, then display accuracy is high when detection works, but the system becomes vulnerable to failures when detection is compromised
Solution Approach 1:
The display control apparatus is designed with multi-functionality, capable of operating in multiple modes: primary line-of-sight-based selection and alternative selection methods. This universality allows the system to adapt to different conditions and maintain functionality regardless of detection status.
Solution Approach 2:
The system dynamically switches between different selection mechanisms based on detection status. When line-of-sight detection is functional, it uses the primary method; when detection fails, it transitions to alternative methods. This dynamic adaptation ensures continuous reliable operation across varying conditions.
Data Source
AI summary
A display control apparatus includes: a first selector that, when line-of-sight information indicating a direction in which a line of sight of an occupant of a vehicle is directed is outputted, selects one of a plurality of display apparatuses as a display apparatus for displaying information provided to the occupant of the vehicle, the plurality of display apparatuses being configured to display the information, the one display apparatus existing in the direction in which the line of sight is directed; and a second selector that, when the line-of-sight information is not outputted, selects, as the display apparatus for displaying the information, one of the plurality of display apparatuses to which the line of sight of the occupant is more likely to be directed than to other display apparatuses.