Wearable Vehicle Display Control Using Gaze and Neck Motion
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Solution Overview
Problem
Existing vehicle display control systems fail to appropriately control display units based on occupant line of sight and neck movement, leading to inefficient information presentation.
Innovation Solution
A vehicle display control device that includes a wearable terminal with a control unit capable of deciding which object images to display on a display unit based on information regarding the occupant's line of sight and neck movement, using sensors to detect these factors and adjust image positioning accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the display unit continuously displays multiple object images, then information availability is improved, but visual obstruction and distraction increase
Solution Approach 1:
The display control device dynamically adjusts which object images are displayed based on real-time detection of line of sight and neck movement. The display state changes from static continuous display to dynamic selective display, showing images only when the occupant is looking in the appropriate direction and not engaged in critical visual tasks
Solution Approach 2:
The system uses sensors to detect line of sight and neck movement, then feeds this information back to the control unit which adjusts display accordingly. This closed-loop feedback mechanism ensures images are displayed only when appropriate, balancing information availability with safety
2Loss of information
If the display unit displays object images, then information presentation is improved, but computational burden increases
Solution Approach 1:
Instead of continuously processing and displaying all object images, the system applies partial action by selectively displaying only those images that are currently relevant based on line of sight and neck movement detection. This reduces computational burden while maintaining essential information presentation
3Loss of information
If the display unit is positioned directly in front of the eyes, then information visibility is improved, but obstruction of the natural view increases
Solution Approach 1:
The system dynamically controls display activation based on the occupant's visual state. When neck movement indicates the occupant is looking ahead at the road, the display remains inactive, clearing the visual path. When line of sight indicates the occupant is looking elsewhere, relevant images are displayed
Data Source
AI summary
A control unit is provided in a wearable terminal mounted on a head of an occupant of a vehicle, and controls a display unit that is positioned immediately before an eye of the occupant when the wearable terminal is mounted on the head and can display a plurality of types of object images, and the control unit decides whether or not to display a specific object image that is a predetermined object image on the display unit based on at least one of information on a line of sight of the occupant and information on a swing of the occupant.