Automatic measurement system for external contour dimensions of motor vehicle and measurement method

Abstract

The invention discloses an automatic measurement system for the external contour dimensions of a motor vehicle, which is characterized in that a length measuring mechanism is an infrared length measuring mechanism in which multiple groups of infrared correlation columns form an infrared curtain, wherein the infrared correlation columns are respectively arranged at the left side and the right side of a measuring channel in an unequally spaced manner, are respectively connected with an embedded microcontroller, acquire and record infrared correlation signals in real time through the embedded microcontroller, and analyze and work out length data; and a height measuring device is an ultrasonic height measuring device which is arranged at the upper end of a portal frame of the measuring channel in a linear array manner and connected with the embedded microcontroller, the ultrasonic height measuring device is composed of small-angle ultrasonic assemblies, performs high-speed sampling in a time division manner through the embedded microcontroller until the vehicle body of the measured vehicle completely passes an acquisition range of linear-array ultrasonic waves and calculates a maximum height value of the measured vehicle. The automatic measurement system disclosed by the invention is simple to operate and high in measurement accuracy, reduces interference of manual measurement, and overcomes various defects such that a measurement result is easy to be interfered by human factors and the measurement is time-consuming and laborious.

Description

technical field [0001] The invention relates to a vehicle outline measurement technology, in particular to an automatic measurement system and a measurement method for the outline size of a motor vehicle based on linear array cluster ultrasonic waves, infrared cross-radiation and laser scanning. Background technique [0002] At present, domestic public security vehicle management institutes, motor vehicle inspection stations, etc. basically continue to use manual inspection methods such as steel tapes in the past to inspect the outer dimensions of vehicles. It takes at least several minutes to inspect a car, and there are many human factors. Large, time-consuming and labor-intensive, and insecure. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a kind of simple operation, high measurement precision automatic measurement system and measurement method of motor vehicle outline size, to reduc...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a kind of simple operation, high measurement precision automatic measurement system and measurement method of motor vehicle outline size, to reduce the interference of human measurement, to overcome the easily affected by the measurement results Various defects such as human factor interference and time-consuming and labor-intensive measurement

Images