Part height measuring method based on laser ranging

Abstract

The invention discloses a part height measuring method based on laser ranging. The part height measuring method based on the laser ranging comprises the steps of (1) measuring distances between all points to be measured and a laser range finder point by point through the laser range finder at constant speed along measuring tracks, (2) transmitting measuring results of all points to be measured on the measuring tracks and measuring time which is time from displacement of the laser range finer to the points to be measured to a storage unit through the laser range finder at the same time of the step of (1), (3) sending received data to an analysis unit through the storage unit when measurement of the laser range finder is finished, (4) calculating height reference values of the points to be measured through the analysis unit according to sent data of the storage unit and combination of the measuring tracks and positions of the points to be measured and sending out. According to the part height measuring method based on the laser ranging, confirming time of the positions of the points to be measured and start-stop time of the laser range finder in the points to be measured are saved in the measuring process, measuring time is saved, and therefore the part height measuring method based on the laser ranging is especially suitable for height measurement of mass products with the same standard.

Description

technical field [0001] The invention relates to a height measurement method, in particular to a multi-part product height measurement method based on laser distance measurement technology. Background technique [0002] Laser ranging technology refers to the technology that uses lasers as light sources for ranging. Its basic principle is to use the round-trip time required for the laser emitted by the laser rangefinder to be reflected by the measured object and then received by the rangefinder to realize the distance measurement of the measured object. The distance measurement formula is: D=0.5c ×t, where D is the measurement distance, c is the speed of light, and t is the round-trip time of the ranging signal. [0003] Laser ranging has not only been widely used as a distance measurement technology, but also has been promoted as a detection method in industrial detection technology. For example, use the principle of laser distance measurement to measure the height of the p...

AI Technical Summary

Problems solved by technology

This measurement method is not only easy to cause misjudgment and missed detection, but also wastes a lot of time in the determination of the points to be measured and the process of starting and stopping the measuring instrument. For example, when the number of points to be measured is large or when measuring a large number of products, it is time-consuming , strenuous

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