A Dynamic Volume Measurement System Based on Laser Scanning Ranging

Abstract

The invention provides a dynamic volume measurement system based on laser scanning ranging, comprising: a point laser, a rotating scanning prism device, a receiving lens, a position sensor, and a control and processing circuit; Point-shaped laser; the rotating scanning prism device is used to turn and circularly scan the point-shaped laser, and transmit the distance information of the scanned laser point to the position sensor through the receiving lens; the position sensor calculates the coordinates of the measured position according to the distance information, and The coordinates of the measured position are sent to the control and processing circuit; the control and processing circuit calculates the original coordinates of each light point signal according to the coordinates of the measured position, and after the scanning of the measured package is completed, according to the calculated during the scanning period of the measured package Each original coordinate is used to calculate the length, width, height and volume of the measured object.

Description

technical field [0001] The invention relates to the technical field of laser scanning, in particular to a dynamic volume measurement system based on laser scanning ranging. Background technique [0002] For three-dimensional profile measurement, laser trackers, three-dimensional laser scanners, three-coordinate measuring machines, or CT tomography equipment are commonly used in industry, and these products are mostly suitable for static measurement, and their measurement range, measurement speed, etc. There are certain deficiencies, especially the inability to solve the real-time measurement problem of high-speed assembly line. [0003] The essence of optical dynamic volume measurement is geometric displacement measurement. It adopts one-time or multiple-scanning measurement method to obtain distance information, combined with target coordinate information, to realize three-dimensional reconstruction of the measured target. At present, the commonly used optical dynamic volu...

AI Technical Summary

Problems solved by technology

[0002] For three-dimensional profile measurement, laser trackers, three-dimensional laser scanners, three-coordinate measuring machines, or CT tomography equipment are commonly used in industry, and these products are mostly suitable for static measurement, and their measurement range, measurement speed, etc. There are certain deficiencies, especially the inability to solve the problem of real-time measurement of high-speed pipelines

At present, the commonly used optical dynamic volume measurement method is the test scheme of wired structured light and area array CCD. The main problem is that the test speed and accuracy cannot meet the high-precision and high-speed measurement requirements of the rapid development of the express industry.

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