Mobile three-dimensional laser scanner based on laser radar and panoramic camera

Abstract

The invention relates to the technical field of engineering surveying, in particular to a mobile three-dimensional laser scanner based on laser radar and a panorama camera. The scanner comprises a three-dimensional laser scanner body, a base, a tripod and a lithium battery, the three-dimensional laser scanner body is rotatably mounted at the upper end of the base, the tripod is fixed at the bottom end of the base, and the three-dimensional laser scanner body is powered by the lithium battery; the three-dimensional laser scanner body comprises a shell, laser radar, a filter lens, a first speed sensor, a first motor, a panoramic camera, a time counter and a central processing unit; a rotating disc is rotatably mounted on the upper surface of the base, an annular rack is fixed to the lower surface of the rotating disc, a rectangular groove is further formed in the upper surface of the base, and a second motor and a second speed sensor are mounted in the rectangular groove; the scanning speed can be increased, the scanning time is saved, meanwhile, the horizontal rotating speed can be adjusted, back-and-forth scanning in the same vertical plane is achieved, and the scanning accuracy can be greatly improved by combining two scanning results.

Description

technical field [0001] The invention relates to the technical field of engineering measurement, in particular to a mobile three-dimensional laser scanner based on a laser radar and a panoramic camera. Background technique [0002] Three-dimensional laser scanning technology is a new technology that has emerged in recent years, and it has attracted more and more attention in the research field in China. It uses the principle of laser ranging, and by recording the 3D coordinates, reflectivity, texture and other information of a large number of dense points on the surface of the measured object, it can quickly reconstruct the 3D model of the measured target and various lines, surfaces, and volumes. kinds of map data. Since the 3D laser scanning system can intensively acquire a large number of data points of the target object, compared with the traditional single point measurement, the 3D laser scanning technology is also known as a revolutionary technological breakthrough from...

AI Technical Summary

Problems solved by technology

In the later maintenance process of the 3D laser scanner of this utility model, only one of the panels needs to be disassembled from the shell frame. Its structure is simple, easy to disassemble or install, and the cost is low; Everywhere, for example: the motor drives the filter to do a continuous 360° rotation, and the filter will only scan the external object for half a circle during the rotation of the filter, so the scanning efficiency is low and the time is long

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