Rotation control method of 3D laser scanner

Abstract

The invention discloses a rotation control method of a three-dimensional laser scanner. The method comprises the steps that: (S1) a prism rotates, before an angle feedback module detects that the first surface of the prism is about to enter an valid angle, and the angle feedback module feeds a signal to a single chip microcomputer to control a horizontal rotation platform to stop rotation; (S2) the prism continues to rotate, the angle feedback module detects that the first surface of the prism rotates for a valid angle and is in an invalid angle, the angle feedback module feeds a signal to the single chip microcomputer to control the horizontal rotation platform to rotate for a horizontal stepping angle and then stop; and (S3) the prism continues to rotate, before the angle feedback module detects that the second surface of the prism is about to enter a valid angle, the angle feedback module feeds a signal to the single chip microcomputer to control the horizontal rotation platform to stop rotation, and the above step is repeated until the prism is rotated for a circle. According to the method, the rotation speed and rotation angle of the horizontal rotation platform are controlled by the angle n synchronous coordination control of the prism so as to achieve the effect of optimizing scanner point cloud.

Description

technical field [0001] The invention relates to the field of optical scanning technology, in particular to a rotation control method of a three-dimensional laser scanner. Background technique [0002] With the development of automation control technology, more and more rotating systems are used in our life and work. In the three-dimensional laser scanning equipment, a two-axis electric rotation mechanism is required to make each laser beam hit a different spatial position. We need to rotate the horizontal rotating table and the vertical prism at the same time, and record the horizontal angle and vertical angle of each laser beam, and combine the distance to establish a polar coordinate system to solve the three-dimensional point cloud data. Therefore, a two-axis rotating mechanism with uniformly adjustable speed and stable operation without shaking is very important in a three-dimensional laser scanner. [0003] The 3D laser scanners currently on the market have the follow...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a rotation control method of a three-dimensional laser scanner to solve the problem that most of the two-axis rotation mechanisms of the three-dimensional laser scanner in the prior art do not synchronously control the rotation of the horizontal rotation part and the vertical rotation part. Technical problems presenting randomness in a line

Images