AR Headset Sight Angle Detection for Driver Focus
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Solution Overview
Problem
In vehicular computing environments, drivers face challenges with distracted driving due to focus shifts, which can lead to accidents and decreased safety, as existing technologies fail to effectively mitigate distractions and maintain attention on the driving path.
Innovation Solution
A method and system that utilize a head-mounted display (HMD) device to measure the sight angle between the user's directional focus and the vehicle's orientation, augmenting the display interface with continuous live content from the central viewing area when the sight angle exceeds a threshold, thereby reducing distractions and improving safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver monitors the central viewing area continuously, then safety is improved, but the driver's field of view is restricted and distraction increases
Solution Approach 1:
The patent transitions the display from a two-dimensional flat surface to a three-dimensional volumetric display that extends into the driver's field of view. This allows safety information to be presented in depth without requiring the driver to shift focus to a separate monitor, thereby maintaining both safety and field of view.
Solution Approach 2:
The patent introduces an intermediary refractive element (such as a lens or optical waveguide) that redirects light from the display medium to the driver's eyes. This intermediary allows the display to be positioned outside the direct line of sight while still presenting information within the driver's natural field of view, resolving the contradiction between safety monitoring and field of view restriction.
2Reliability
If AR display is used to provide real-time feedback, then driver focus is maintained, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into the HMD device including gaze tracking, AR display, and feedback mechanisms within a single unified system. This multi-functionality reduces the need for separate dedicated devices and simplifies the overall system architecture while maintaining driver focus through real-time feedback.
Solution Approach 2:
The system uses the driver's own gaze direction as input to automatically adjust the display content and feedback presentation. This self-service mechanism eliminates the need for complex manual controls or additional sensors, reducing device complexity while maintaining effective driver focus through contextual awareness.
Data Source
AI summary
A head mounted display (HMD) device worn by a user in a vehicular computing environment (VCE) can be augmented with video by measuring, within the VCE, a sight angle between a user's directional focus and a vehicle's directional orientation and augmenting, in response to a determination that the measured sight angle exceeds a threshold limit, an interface of the HMD device with a video feed of continuous live content captured within a central viewing area.