Device for positioning placement position of ADAS calibration target plate and positioning method

Abstract

The invention discloses a device for positioning the placement position of an ADAS calibration target plate and a positioning method. The device is specifically a device for assisting calibration by utilizing a wheel aligner for assistance, functions of the wheel aligner are expanded, the wheel aligner is utilized to obtain the vehicle space position information, and an ADAS calibration plate is placed at an accurate position relative to a vehicle according to specification standards. The method comprises steps of acquiring a spatial position Pl1 of a to-be-calibrated vehicle center line, a spatial position Pf2 of a to-be-calibrated vehicle center line plane, a spatial position Pc111 of the ADAS calibration plate and a spatial position Pl4 of an ADAS calibration equipment support frame cross beam relative to a camera by using the device, namely, determining the accurate position of the ADAS calibration plate 111 relative to the to-be-calibrated vehicle. The method is advantaged in thatthe method is simple to operate, convenient to calibrate and high in accuracy, and working efficiency is improved quickly and conveniently.

Description

technical field [0001] The invention relates to a device and method for placing an ADAS calibration target board at an accurate position relative to a vehicle, in particular to a device for placing the calibration target board used for calibrating ADAS at a suitable position relative to the vehicle through real-time measurement by a wheel aligner and methods. Background technique [0002] The current ADAS (Advanced Driver Assistant Systems, Advanced Driver Assistance System) mainly uses sensors such as cameras and radars to obtain road condition information. Therefore, it is very necessary to calibrate ADAS during installation and use of ADAS. This is related to whether ADAS can provide correct assistance to drivers. ADAS calibration mainly uses the ADAS calibration board to calibrate sensors such as cameras and radars. During the calibration process, the position of the ADAS calibration board relative to the vehicle is required. Only by performing ADAS calibration under...

AI Technical Summary

Problems solved by technology

Although this method can eliminate some human errors to a certain extent, it has the following disadvantages: First, the operation is cumbersome. After the wheel alignment is completed, the target plate of the wheel alignment instrument must be disassembled, and then a new clamp and a new fixture should be installed on the wheel. The second is that the deformation of the rim or the installation error of the fixture may cause measurement errors. Although the installation of the fixture of the wheel aligner cannot eliminate the error, the measurement process has been dynamically compensated, so these factors can be corrected without affect the measurement

However, due to the high cost of the camera, and the simultaneous acquisition of images by multiple cameras increases the burden of data transmission and processing, generally only one additional camera is used, which is inserted in turn at both ends of the beam of the ADAS calibration board for adjustment, and the adjustment efficiency is not high enough. Another On the one hand, due to the complicated calibration of the relative position between the camera and the beam of the ADAS calibration board, the steps are cumbersome and inconvenient to use

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