Electronic Rearview Mirror Eye-Tracking for Blind Spot Visibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional rearview mirrors have large blind fields and are affected by environmental factors, requiring manual angle adjustments by drivers, and cannot actively provide an optimal viewing angle.
Innovation Solution
An image capture module captures a main image, and a controller determines the user's line of sight and moving vector to automatically adjust the rearview mirrors, ensuring the mirrors align with the user's desired viewing angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a convex mirror is used to expand the field of view, then the viewing area is improved, but the blind field of view increases and the mirror is greatly affected by surroundings (rain, snow, high beam)
Solution Approach 1:
The patent uses cameras to capture images of the rear and side scenes, creating a digital copy of the visual information that would otherwise be reflected by traditional mirrors. This electronic copy is then displayed on screens, eliminating the optical limitations of convex mirrors while maintaining the expanded field of view capability.
Solution Approach 2:
The patent replaces the mechanical/optical system of convex mirrors with an electronic imaging system consisting of cameras, processors, and display screens. This substitution eliminates the optical distortions and environmental sensitivities of mirror-based systems while providing reliable, adjustable viewing angles.
2Device complexity
If a traditional rearview mirror is used, then the structure is simple, but the driver needs to perform manual angle adjustment
Solution Approach 1:
The system automatically adjusts the viewing angle by detecting the driver's line of sight through camera-based eye tracking and automatically positioning the electronic mirror to provide the optimal viewing angle. This eliminates the need for manual adjustment operations while maintaining system simplicity through automated control.
Solution Approach 2:
The system continuously monitors the driver's eye position and head orientation, using this feedback to automatically adjust the electronic mirror's viewing angle. This closed-loop control ensures the mirror always provides the optimal view without requiring manual intervention from the driver.
3Device complexity
If the rearview mirror cannot actively provide an expected field of view, then the system is simple, but the driver needs to perform manual angle adjustment
Solution Approach 1:
The electronic rearview mirror system automatically detects the driver's intended viewing direction through eye tracking and head position sensing, then self-adjusts to provide the expected field of view. This automation eliminates manual adjustment operations while the modular design keeps the overall system complexity manageable.
Data Source
AI summary
A rearview mirror adjustment system, a rearview mirror adjustment method, and an electronic rearview mirror assembly are provided. An image capture module is configured to capture a main image. A first rearview mirror set includes a first camera, a first display screen, and a first driver. The first camera is configured to capture a first image of a first predetermined region. The first display screen is configured to display the first image. The first driver is configured to adjust the first predetermined region when driven. A controller is configured to obtain a line of sight and a moving vector according to the main image. The controller is configured to drive the first driver according to the moving vector in response to the line of sight corresponding to the first display screen and the moving vector not falling in an unmoved region.