Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Image-based building component deformation measurement method

A technology of building components and measurement methods, applied in the directions of measurement devices, image enhancement, image analysis, etc., can solve problems such as poor operability, easy to be affected by the environment, and complicated process of attaching resistance strain gauges, achieving high robustness, The effect of high precision and improved clarity

Inactive Publication Date: 2020-02-21
TONGJI UNIV
View PDF7 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The displacement sensor has a large installation workload and poor operability, and the process of attaching the resistance strain gauge is complicated and easily affected by the environment

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
  • Image-based building component deformation measurement method
  • Image-based building component deformation measurement method
  • Image-based building component deformation measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0040] An image-based method for measuring the deformation of building components, such as figure 1 shown, including:

[0041] Step S1: Install the CCD camera. The installation principle of the CCD camera is: all surfaces to be measured are located in the camera field of view and occupy the camera field of view to the maximum extent.

[0042] Step S2: Generate speckles, print speckle stickers, and stick them on the surface of the test piece, then use the CCD camera to collect the initial speckle image. In addition, the CCD camera should be fixed on a tripod when shooting, and the hor...

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 relates to an image-based building component deformation measurement method. The method comprises the steps of S1, installing a CCD camera; S2, generating speckles, printing speckle stickers, sticking the speckle stickers to the surface of a to-be-measured piece, and collecting an initial speckle pattern by using the CCD camera; and S3, collecting, by the CCD camera, the to-be-measured speckle pattern at the to-be-measured moment, and using a digital image correlation method for processing on the basis of the initial speckle pattern and the to-be-measured speckle pattern so as toobtain a displacement field in the component surface. Compared with the prior art, the method has the advantages that the speckle pattern is utilized, measurement is carried out in an image processing mode, and the deformation field of the building component can be measured in a non-contact and large-area mode.

Description

technical field [0001] The invention relates to the field of building monitoring, in particular to an image-based method for measuring deformation of building components. Background technique [0002] The traditional deformation measurement methods in the civil engineering field include displacement sensors and resistance strain gauges. The displacement sensor has a large installation workload and poor operability, and the process of attaching the resistance strain gauge is complicated and easily affected by the environment. Digital image correlation method is a modern non-contact full-field optical measurement technology, which has the advantages of high precision, non-contact, full-field measurement, good environmental applicability, and easy operation. It has been widely used in aerospace and civil engineering measurements And object deformation monitoring and other fields. Applying it to the deformation measurement of building components can realize non-contact and lar...

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
IPC IPC(8): G01B11/16G06T7/30
CPCG01B11/16G06T2207/10004G06T7/30
Inventor 何斌龙博李刚王志鹏周艳敏朱忠攀沈润杰
Owner TONGJI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com