Vision measurement system for wheel alignment parameters of multi-axle commercial vehicles based on two-dimensional targets

Abstract

The invention discloses a system for vision measurement of multi-shaft commercial vehicle wheel location parameters on the basis of a two-dimensional target. The system aims at solving the problem that the multi-shaft commercial vehicle wheel location parameters cannot be detected by means of a machine vision measurement technology. The system for vision measurement of the multi-shaft commercial vehicle wheel location parameters on the basis of the two-dimensional target is composed of a beam, a connecting block, a camera base, a camera, a camera stand, a clamping plate and a stud. A three-dimensional linear guide rail and a two-dimensional arc-shaped guide rail are utilized to enable a standard target to reach the random spatial position and angle, the system has the advantages that the automobile chassis longitudinal axis determined by a commercial vehicle chassis longitudinal beam serves as the standard and the system is simple in structure, high in detection precision, small in accumulated errors and simple and convenient to operate, and vision measurement of the multi-shaft commercial vehicle wheel location parameters on the basis of machine vision is achieved.

Description

technical field [0001] The invention relates to a measuring instrument in the field of machine vision measurement, more specifically, it relates to a visual measurement system for wheel alignment parameters of multi-axis commercial vehicles based on two-dimensional targets. Background technique [0002] In order to ensure the handling stability of the car, the installation between the wheels, steering knuckle and axle shaft of the car has a certain relative position, which is called wheel alignment. The wheel alignment parameter detection system is usually referred to simply as a four-wheel aligner or a wheel aligner. Wheel aligner is the most important testing equipment for checking wheel alignment. At present, there are more than 30,000 wheel aligners in the country, and it is increasing at a rate of 30% every year. [0003] With the development of automobile detection technology, the detection method of wheel alignment based on vision sensor has been paid more and more ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the present situation that machine vision measurement technology cannot be used to detect the wheel positioning parameters of multi-axis commercial vehicles, the present invention provides a vehicle chassis longitudinal axis determined by the longitudinal beam of the commercial vehicle chassis as a reference, which has a simple structure and high detection accuracy. High, small cumulative error, complete functions, simple operation, easy installation, strong versatility, and reliable performance. It can meet the requirements of the automobile inspection industry for the detection of multi-axis operating vehicle wheel alignment parameters. The multi-axis operating vehicle wheel alignment based on two-dimensional targets Parameter Vision Measurement System

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