High-precision 3D laser scanner site setting and measurement route layout method

A three-dimensional laser, high-precision technology, applied in the field of surveying and mapping engineering, can solve the problems of station setting and surveying route layout, and achieve the effect of reducing the transmission and accumulation of errors

Active Publication Date: 2019-09-10
SICHUAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At home and abroad, a lot of research has been done on the accuracy of 3D laser scanners, but there are still relatively few studies on site setting and measurement route layout.

Method used

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  • High-precision 3D laser scanner site setting and measurement route layout method
  • High-precision 3D laser scanner site setting and measurement route layout method
  • High-precision 3D laser scanner site setting and measurement route layout method

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Embodiment Construction

[0036] Specific embodiments of the present invention are described in conjunction with the accompanying drawings.

[0037] (1) On-site survey, comprehensively investigate the surrounding environment of the dam body, and make relevant records;

[0038] (2) Analyze according to the on-site survey to determine the approximate distance between the scanning site and the object and the accuracy requirements;

[0039] (3) Design the scanning route and establish the control pier mark. In order to establish a comprehensive and complete 3D scanning model, design the scanning route around the scanned object, and set the scanning route as a closed route. For the specific route of this project, see figure 1 ;

[0040] (4) Determining the number of stations and their locations: ten survey stations are set up in this project, and four high-precision control piers are established, see the attached figure 2 , six common sites. Establish high-precision control piers at S-01, S-04, S-06, an...

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Abstract

The invention belongs to the field of surveying and mapping engineering, and specifically relates to a method for setting high-precision scanner stations and measuring routes to improve scanning accuracy, which includes the following processes in turn: setting the scanning route as a closed route around the scanning object, setting the corresponding distance between stations, Select the layout points of scanning stations; set up high-precision control piers and control piers, scan and collect on-site data, splicing data of mapping stations without control piers, splicing data of mapping stations with control piers, point cloud 3D construction mold. The high-precision three-dimensional laser scanner site setting and measurement route layout method provided by the present invention effectively reduce the transmission and accumulation of errors during measurement, and the method can quickly and accurately establish a three-dimensional model of the project.

Description

technical field [0001] The invention belongs to the field of surveying and mapping engineering, and in particular relates to a method for improving scanning precision by setting a high-precision scanner station and measuring a route. Background technique [0002] Three-dimensional laser scanning technology is an advanced automatic high-precision three-dimensional scanning technology. It has the characteristics of fast data acquisition, high precision, full automation, and all-weather operation. It has become an important technical means for spatial data acquisition. With the continuous development of 3D laser scanning technology and the application of 3D laser scanners more and more widely, experts at home and abroad have conducted research on the accuracy of 3D laser scanning technology in all aspects of scanning technology, including targets, instruments, and operating methods. study in depth. The main research results are as follows: [0003] (1) Obtain the target accur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01C15/00G01C15/02
Inventor 李海波韩兴周家文樊鹏杨兴国陈曦李树勇
Owner SICHUAN UNIV
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