Vehicle dimensional measurement system based on photoelectric induction and TOF technology

Abstract

The invention provides a vehicle dimensional measurement system based on photoelectric induction and TOF technology. The vehicle dimensional measurement system comprises a control system, a light curtain detecting system and a frame, wherein the control system is in signal connection with the light curtain detecting system; the frame is provided with mirror-symmetrical walking mechanisms; each walking mechanism is provided with a distance detecting module; two distance detecting modules correspond to each other; each distance detecting module is in signal connection with the control system, and is configured to detect a distance from a corresponding position to the vehicle body, generate a distance signal and transmit the same to the control system; and the control system is configured todrive the waling mechanisms to synchronously move along the length direction of the vehicle, record the positional information of the walking mechanisms, determine the positions of the rear view mirrors of the vehicle according to the positional information and the distance signal, and generate vehicle width information. The vehicle dimensional measurement system can accurately measure the width dimensions of various parts of the vehicle body. Compared with an existing measurement system just capable of measuring the widest value of the vehicle body, the vehicle dimensional measurement systemis complete and comprehensive in measurement, and is suitable for various scenes that need to measure the actual dimension of the vehicle.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a vehicle size measurement system and method based on photoelectric induction and TOF technology. Background technique [0002] TOF, Time of flight, time of flight ranging technology. [0003] There are many occasions where it is necessary to measure the size of the vehicle outline. For example, in order to save resources during automatic car washing, the vehicle size is often obtained through the car model, or the vehicle size is detected, and then washed according to the obtained vehicle size; another method , During the vehicle inspection, the size of the vehicle will also be tested to determine whether the vehicle has been modified and whether the modification is compliant. [0004] Existing patent documents that have been published to automatically measure the size of the vehicle outline: [0005] Automobile outline size measuring machine (CN101685005B) proposes that ...

AI Technical Summary

Problems solved by technology

However, its length measurement and tracking system measures the length of the vehicle while it is in motion, and it occupies a large area, which is not suitable for the detection of vehicle size in a small space; The vehicle height can only measure the widest value of the vehicle width and the highest value of the vehicle height, so the patent cannot measure the arc of the vehicle top, the position of the rearview mirror, the position of the tires, the height of the chassis, etc.

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