Vehicle Display Control via Gaze Tracking
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Solution Overview
Problem
Current vehicle display systems, such as Head-Up Displays (HUD) and smart rear-view mirrors, face challenges in power consumption and driver safety due to simultaneous or alternating display modes, which increase energy usage and pose risks during driving.
Innovation Solution
A control method and device using gaze tracking technology to determine which displays are focused by the driver, allowing only the focused display to be active, thereby reducing power consumption and minimizing driver distraction and safety risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If both HUD and smart rear-view mirror are displayed at the same time, then convenience and user experience are improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts display states based on real-time gaze detection. The HUD and smart rear-view mirror switch between active and inactive states according to driver attention, transforming the static simultaneous display into a dynamic, demand-driven display configuration that reduces power consumption while maintaining convenience when needed
Solution Approach 2:
The gaze detection system automatically determines which display should be active based on driver behavior patterns, eliminating the need for manual switching. The system serves itself by using gaze data to autonomously control display states, optimizing both convenience and energy efficiency without driver intervention
2Use of energy by moving object
If HUD and smart rear-view mirror are displayed alternately with manual switching, then power consumption is reduced, but driver safety is compromised due to increased distraction risk
Solution Approach 1:
The patent replaces the mechanical manual switching operation with an automated optical detection system. The gaze detection technology uses optical fields to track driver attention and automatically controls display switching, eliminating the need for manual intervention while reducing driver distraction and improving safety
Solution Approach 2:
The system implements a feedback loop where gaze detection continuously monitors driver attention, and this information feeds back to automatically adjust display states. This closed-loop control ensures displays are activated only when the driver is looking at them, maintaining safety while optimizing power consumption
3Reliability
If gaze tracking is used to automatically control displays, then driver safety is improved by reducing manual switching, but device complexity increases
Solution Approach 1:
The gaze detection system serves multiple functions: it detects driver attention for safety purposes, determines display activation states for power management, and provides the basis for automatic switching control. By making the gaze detection system multi-functional, the patent reduces the need for separate components, thereby managing complexity while achieving safety improvements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution automatically recognizes the driver's focal point and controls the displays accordingly, saving energy and enhancing driving safety by ensuring only the necessary displays are active, reducing manual switching and associated risks.
Implementation Method 1
acquiring a sequence of visual field images comprising gaze points in real time through gaze tracking
Data Source
AI summary
A control method for a vehicle-carried display device including a plurality of displays is disclosed. The control method including: acquiring a sequence of visual field images comprising gaze points in real time through gaze tracking; determining whether at least one display of the plurality of displays is focused based on the acquired sequence of visual field images; and controlling the plurality of displays according to a result of the determination.