Three-dimensional laser radar ranging system

Abstract

The invention discloses a three-dimensional laser radar ranging system which comprises a laser radar rotating part, a rotating mechanism and a laser radar fixing part from top to bottom in sequence, wherein the laser radar rotating part is used for emitting a laser to an object to be detected and receiving a laser signal reflected by the object; the rotating mechanism is used for driving the laser radar rotating part; the laser radar fixing part is used for processing the obtained laser signal reflected by the object and driving the rotating mechanism; the laser radar rotating part and the laser radar fixing part are connected through the rotating mechanism. According to the three-dimensional laser radar ranging system, a mechanical rotating scanning mechanism is utilized to generate the laser with a certain field angle to realize one-dimensional scanning in the vertical direction, and the rotating scanning mechanism can also be utilized to realize one-dimensional scanning in the horizontal direction, so that the three-dimensional scanning in a certain range can be realized, and the orientation recognition on the object can be realized.

Description

technical field [0001] The invention relates to the technical field of laser ranging, in particular to a three-dimensional laser radar ranging system. Background technique [0002] Laser is a new type of light source. Compared with ordinary light, it has the characteristics of good monochromaticity, directionality, coherence and high brightness. Lidar is a modern optical detection method developed by utilizing the excellent performance of laser and integrating laser technology, optical technology and weak signal detection technology. Because lidar has the advantages of high detection sensitivity and high spatial resolution, it has become an effective method for high-precision remote sensing detection of the atmosphere, ocean and land, and is widely used. [0003] Lidar is a radar system that emits laser beams to detect characteristic quantities such as the position and speed of targets. In terms of working principle, there is no fundamental difference from microwave radar:...

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Problems solved by technology

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a three-dimensional laser radar ranging system, which aims to solve the problem that after the establishment of the laser radar ranging system in the prior art, the field of view is generally fixed and can only be detected by replacing the imaging optical device or machine. The scanning device is changed, and the lidar ranging system with automatic zoom is very complicated and costly.

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