Building deformation monitoring method based on three-dimensional laser point cloud geometric features

A three-dimensional laser and geometric feature technology, applied in measurement devices, optical devices, instruments, etc., can solve the problems of difficult measurement, reduce monitoring efficiency, and difficult to save points, improve data acquisition efficiency, and avoid controlled measurement. Errors, Effects of Reduced Precision Requirements

Active Publication Date: 2021-12-17
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION +1
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  • Abstract
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  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses 3D lasers to create detailed maps of structures undergoing damage or displacement caused by environmental factors like temperature fluctuations over time. These maps help with understanding how these damaged areas look from different angles during construction work hours. By analyzing this map, engineered materials are able to better identify any issues related to their performance before they become too severe. Additionally, it provides an efficient way to monitor larger constructions while maintaining consistent quality standards. Overall, this technology helps improve safety measures against threatening events such as earthquakes and fires.

Problems solved by technology

The technical problem addressed in this patents relates to improving the performance of surveys used during structural evaluation while maintaining accurate measurements over time without sacrificially increasing costs associated with expensive equipment. Current systems are limited because they cannot provide complete coverage of all areas within an entire building area simultaneously. Additionally, current techniques involve complex operations that limit their effectiveness and usability.

Method used

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  • Building deformation monitoring method based on three-dimensional laser point cloud geometric features
  • Building deformation monitoring method based on three-dimensional laser point cloud geometric features
  • Building deformation monitoring method based on three-dimensional laser point cloud geometric features

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Embodiment Construction

[0051] Below in conjunction with the accompanying drawings of the present invention, a technical solution of the present invention will be clearly and fully described.

[0052] Please refer to figure 1 A method of monitoring the deformation of the laser structure based on 3D point cloud geometric features, comprising the steps of:

[0053] (1) Data Preparation

[0054] To analyze, verify the validity of the proposed method, using Leica ScanStation P50 three-dimensional laser scanner (Leica Geosystems AG, Switzerland) for a community of houses Nansha District, Guangzhou City Lanhe were three-dimensional laser scanning monitor. Main Specifications Leica ScanStation P50 dimensional laser scanner as shown in Table 1, a schematic view of appearance such as figure 2 Indicated.

[0055] Table 1 Leica ScanStation P50 laser scanner table Main Specifications

[0056]

[0057]

[0058] For communities where houses were laid scan station 11, at least two common targets laid between respectiv

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Abstract

The invention provides a building deformation monitoring method based on three-dimensional laser point cloud geometric features. The building deformation monitoring method comprises the steps of three-dimensional laser data acquisition, multi-site cloud registration, single building extraction, building line-plane fitting, line-plane geometric parameter extraction, building deformation analysis and the like. According to the building deformation monitoring method based on features, the defects that in an existing method, the requirement for the precision of a three-dimensional laser scanner is harsh, multi-site cloud registration errors are likely to be introduced, and high-precision control point arrangement is needed can be overcome, point cloud distribution information obtained through three-dimensional laser scanning is fully utilized, the advantages of high precision and high stability brought by fitting of a large number of point clouds can be effectively utilized, the geometric features and change information of a building extracted from the three-dimensional point cloud can also reflect the deformation features of the building more visually, and safety monitoring data is effectively provided for construction and management of the building in time.

Description

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Claims

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Application Information

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Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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