Four-Wheel Aligner Image Calibration for Faster Alignment Detection
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Solution Overview
Problem
Existing four-wheel aligners suffer from long detection times and low detection efficiency due to the need for precise positioning of image acquisition devices and vehicles, which increases the time required for accurate alignment analysis.
Innovation Solution
A four-wheel aligner system comprising first and second detection devices positioned on the left and right sides of the vehicle, respectively, with image acquisition modules capturing calibration members on all four wheels, and a control device analyzing image information to determine four-wheel alignment, reducing the need for precise mounting and shortening detection time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If precise positioning of image acquisition devices and vehicles is required for accurate alignment analysis, then measurement precision is improved, but detection time increases
Solution Approach 1:
The system performs preliminary calibration by having detection devices capture images of calibration members at multiple known positions before actual alignment detection. This pre-establishes reference data that enables rapid accurate measurement during actual operation without requiring time-consuming precise positioning adjustments
Solution Approach 2:
The system replaces traditional mechanical positioning and measurement systems with optical image capture and computer vision analysis. Image acquisition modules capture wheel positions and alignment parameters optically, eliminating the need for mechanical measurement tools and complex physical positioning adjustments
2Measurement precision
If multiple image acquisition modules and calibration members are used to capture wheel positions, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The detection devices are designed with multi-functionality, serving both as image acquisition units for wheel position detection and as positioning references through integrated calibration members. This universal design reduces the need for separate dedicated components for each function
Solution Approach 2:
The system merges the image acquisition modules and calibration members into integrated detection devices that perform multiple functions simultaneously. The calibration members are incorporated directly into the detection device structure, eliminating separate calibration equipment
Data Source
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AI summary
The present application relates to the field of vehicle detection technology, more particularly to a four-wheel aligner (1000), which includes a first detection device (101), a second detection device (102) and a control device (130); the first detection device (101) includes a first position detection module (1401) and a first image acquisition module (1201), the second detection device (102) includes a second position detection module (1402) and a second image acquisition module (1202), the first image acquisition module (1201) and the second image acquisition module (1202) are respectively configured to acquire image information on four wheels, in the first position detection module (1401) and the second position detection module (1402), one includes a fifth calibration member (141), and another one includes an image acquisition member (142), the image acquisition member (142) is configured to capture image information of the fifth calibration member (141); the control device (130) analyzes the four-wheel alignment information of the vehicle according to the acquired image information, and this method of using image information for analysis to obtain alignment information reduces the detection time of the four-wheel aligner (1000), improves the detection efficiency of the four-wheel aligner (1000), and improves the convenience of using the four-wheel aligner (1000).