Water diversion vertical shaft defect detection method based on three-dimensional laser scanning technology

A technology of three-dimensional laser and scanning technology, which is applied in the field of water diversion shaft defect detection, and can solve problems such as difficult detection of water diversion shaft defects

Active Publication Date: 2019-07-19
WUHAN UNIV
View PDF7 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application solves the problem that it is difficult to detect the defects of the water diversion shaft in the prior art by providing a method for detecting the defects of the water diversion shaft based on the three-dimensional laser scanning technology

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water diversion vertical shaft defect detection method based on three-dimensional laser scanning technology
  • Water diversion vertical shaft defect detection method based on three-dimensional laser scanning technology
  • Water diversion vertical shaft defect detection method based on three-dimensional laser scanning technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0059] The present invention uses the three-dimensional laser scanning data of the water diversion shaft obtained by the 100-meter-level water diversion shaft health detection equipment and method recorded in the patent CN107561085A "A Large-Scale Hydropower Station 100-meter-level Diversion Shaft Health Detection Equipment and Method", and proposes a water diversion shaft defect detection The method is helpful to timely check out the potential safety hazards in the shaft section of the diversion channel, and provides a strong guarantee for the safe operation of the hydropower station.

[0060] This method first denoises the point cloud data, and uses a straight-through filter to remove abnormal points caused by mooring ropes and equipment occlusi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of water diversion vertical shaft defect detection, and discloses a water diversion vertical shaft defect detection method based on a three-dimensional laser scanning technology. The method comprises the following steps: acquiring original point cloud data of a water diversion vertical shaft through three-dimensional laser scanning and preprocessing theoriginal point cloud data; acquiring complete point cloud data of the water diversion vertical shaft through point cloud registration; extracting a central axis of the water diversion vertical shaftto obtain a section; performing convergence analysis of the water diversion vertical shaft; performing radial deformation analysis of the water diversion vertical shaft; performing slab staggering detection of the water diversion vertical shaft; and performing denudation extraction detection. According to the water diversion vertical shaft defect detection method based on the three-dimensional laser scanning technology provided by the invention, the problem that water diversion vertical shaft defects are difficult to be detected in the prior art is solved, and the defect detection of a vertical shaft section of a water diversion power generation system of a large hydropower station can be realized, so that potential safety hazards of the vertical shaft section of a water diversion tunnel can be timely troubleshot, and a powerful guarantee is provided for the safe operation of the hydropower station.

Description

technical field [0001] The invention relates to the technical field of water diversion shaft defect detection, in particular to a water diversion shaft defect detection method based on three-dimensional laser scanning technology. Background technique [0002] With the continuous development of my country's water conservancy and hydropower industry, more and more large-scale hydropower stations have been built, and the hidden dangers of the quality of diversion channels in the diversion power generation system have gradually emerged. As an important part of the water diversion shaft, its erosion, deformation and other diseases will not only threaten the overall safety and stability of the water diversion channel, but also affect the operation of the entire hydropower diversion power generation system, bringing huge safety hazards and economic losses to the hydropower station . Since the last century, dozens of shaft walls in East China and Northeast China have been deformed ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01B11/16
CPCG01B11/16G01B11/24
Inventor 唐炉亮牛乐李清泉
Owner WUHAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap