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Single-linear-array laser radar equipment centering method

A laser radar and equipment center technology, applied in the field of single-line array laser radar equipment center calibration, can solve the problems of different and complex calibration methods of laser radar equipment centers, meet the requirements of suppressing high-precision data acquisition and verification, and be universal sexual effect

Active Publication Date: 2015-04-01
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

In practical applications, due to the manufacturing process, processing and adjustment of the laser radar scanning equipment itself, as well as the transportation vibration of the whole device (including various parts of the laser radar equipment), the center of the laser radar equipment will deviate from the design position, and for applications related to high-precision 3D data acquisition In terms of demand, the ranging error caused by the above equipment center deviation is unacceptable
[0004] In addition, there are many types of 3D laser scanners currently used in practice, which can be roughly divided into three categories according to their working principles: 3D laser scanning equipment using pulse ranging technology, phase interference scanning system and triangulation scanning system using stereoscopic light or structured light , although various imaging systems have the design reference position of the relevant equipment center, but it is difficult to directly elicit, and the calibration methods of the lidar equipment center are different and complicated for different working principles

Method used

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the...

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Abstract

The invention provides a single-linear-array laser radar equipment centering method. The method aims to solve the high-precision centering problem of laser radar equipment, a laser radar triangular reflection target is adopted and scanned and imaged for many times, and the centering problem of the laser radar equipment is changed into a problem of intersection of straight lines, so that the relevance between centering of the laser radar equipment and equipment work principles is lowered, the centering procedures of the laser radar equipment are simplified, and precision of centering and ranging evaluation of the laser radar equipment is improved.

Description

technical field [0001] The invention relates to the technical field of laser radar in the optoelectronic industry, in particular to a method for center calibration of single-line array laser radar equipment. Background technique [0002] With the further development of 3D laser scanning technology and the increasing demand for reverse engineering, mechanical manufacturing and high-resolution aerospace applications, the importance of high-precision calibration and ranging accuracy evaluation for LiDAR scanning equipment has become increasingly prominent. [0003] The high-precision calibration and ranging accuracy evaluation of laser radar equipment firstly confirms the precise position of the center of laser radar equipment. In practical applications, due to the manufacturing process, processing and adjustment of the laser radar scanning equipment itself, as well as the transportation vibration of the whole device (including various parts of the laser radar equipment), the c...

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Application Information

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IPC IPC(8): G01S7/497
CPCG01S7/497
Inventor 李传荣张丹丹周梅吴昊昊张慧静胡坚李子扬
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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