Automobile body center line calibration apparatus and method

Abstract

The invention relates to the technical field of automobile maintenance and equipment calibration and discloses an automobile body center line calibration apparatus and method. The calibration apparatus comprises a support device and lasers. The support device comprises a horizontal graduated scale; the lasers are used for being installed on an automobile body and emitting laser beams to the horizontal graduated scale. When the automobile center line calibration apparatus is used, the two lasers can be installed on wheels on the two sides of an automobile; two laser beams emitted at equal intervals with the wheels as reference points irradiate the horizontal graduated scale; the support device can be moved to a proper position according to the scale mark of the horizontal graduated scale; and therefore, the calibration of the center line of the automobile can be facilitated.

Description

[0001] This application is a divisional application of the Chinese application submitted on October 20, 2017, with the application number 201710987229.2, and the title of the invention is "A Device and Method for Car Body Centerline Calibration". 【Technical field】 [0002] The invention relates to the technical field of vehicle maintenance and equipment calibration, in particular to a vehicle body centerline calibration device and method. 【Background technique】 [0003] In the field of automobile maintenance, such as four-wheel alignment, Advanced Driver Assistant Systems (ADAS) calibration, etc., it is necessary to calibrate the centerline of the car body to facilitate the placement of subsequent calibration equipment, including equipment centers and car body centers Calibration of the centerline of the vehicle body is indispensable for alignment, distance between the equipment and the vehicle body, and vertical center plane between the equipment and the vehicle body. [00...

AI Technical Summary

Problems solved by technology

Based on the geometric and mathematical knowledge of two points and one line, this method can determine the centerline of the car body, but the two points it marks are only the extended marks of the reference point of the center of the car body. If an error occurs during the extension process, the centerline is not calibrated correctly

At the same time, in principle, the extension of the center reference point of the car body is based on the vision of the human eye. The position of the human eye is different, and the reference point of the ground is also different, resulting in the inaccurate center line of the calibration;

[0006] 2. Inconvenient operation

This method not only requires at least two people to cooperate, but also the process of passing the rope through the bottom of the car is very inconvenient

In addition, after introducing the rope as a reference, it is equivalent to introducing a reference variable, which reduces the calibration accuracy

Images