Dynamic Indirect Vision System for Vehicles
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Solution Overview
Problem
Existing indirect vision systems in vehicles provide a fixed and obstructed view, limiting the driver's ability to freely adjust the field of view, especially when using traditional mirrors and rear-camera devices.
Innovation Solution
An indirect vision system comprising a first and second camera device, a display device, and a processor that computes six-axis movements to adjust the field of view dynamically based on the driver's position, using parallel and perpendicular-plane displacements to stabilize and smoothly relocate the image frame according to the driver's head movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed rear-camera device is mounted at a fixed place, then the device structure is simple, but the field of view is monotonic and cannot be adjusted freely
Solution Approach 1:
The patent applies dynamics by making the display device movable rather than fixed. The display device can move in six-axis directions (three translational and three rotational degrees of freedom) to dynamically adjust the field of view according to driver position and head movements, resolving the contradiction between fixed structure and adjustable view.
Solution Approach 2:
The patent introduces six-axis movement capabilities, adding multiple dimensional degrees of freedom to the display device. This enables the device to adjust not only in traditional two-dimensional planes but also in depth and rotational dimensions, providing comprehensive field of view adjustability while maintaining a relatively simple overall structure.
2Loss of information
If the driver turns their head to check side mirrors or looks up at the interior rearview mirror, then the driver can retrieve surrounding traffic information, but the driver's view is still obstructed and swaying the head does not improve the demanded field of view
Solution Approach 1:
The system uses a camera to detect the driver's head position and eye direction, providing feedback about the driver's viewing state. Based on this feedback, the display device automatically adjusts its position and orientation to present the appropriate field of view, eliminating the need for the driver to manually adjust mirrors or turn their head.
Solution Approach 2:
The display device performs self-adjustment based on detected driver position and head movements. The system automatically repositions the display device to maintain optimal viewing conditions without requiring manual intervention from the driver, making the system serve itself rather than requiring the driver to manipulate controls.
3Loss of information
If the interior rearview mirror provides reflection from inside the vehicle to the outside, then the driver can see the rear view, but the driver's view is obstructed
Solution Approach 1:
The patent replaces the traditional optical reflection mechanism of interior rearview mirrors with an electronic imaging and display system. A camera captures the rear view, and the image is displayed on a movable display device, substituting the mechanical/optical mirror system with an electronic system that eliminates view obstruction issues.
Solution Approach 2:
The patent introduces a camera and display device as intermediary components between the rear scene and the driver's eyes. Instead of direct optical reflection that causes obstruction, the system uses electronic imaging as an intermediary to transfer and present the rear view information without blocking the driver's forward view.
Data Source
AI summary
The indirect vision system includes a first camera device, a second camera device, a display device, and a processor. The first camera device shoots towards a first scene to capture a first image frame. The second camera device shoots towards a second scene to capture a second image frame. The display device is connected to the second camera device and displays the second image frame. The processor computes a six-axis moving direction of a target point in a three-dimensional space by using the current first image frame and another first image frame of a reference time; computes a displacement between the target point and the display device in the six-axis moving direction; and changes a field of view of the second image frame shown on the display device according to the displacement.