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Measurement method and system thereof for acquiring displacement changes of earthquake simulator

A technology of displacement change and measurement method, applied in the field of displacement change measurement method and its system, can solve problems such as inability to extract information such as displacement and limited measurement range.

Active Publication Date: 2016-03-16
苏州西博三维科技有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

The common eddy current displacement sensor has the advantages of high reliability and strong anti-interference ability, but limited by the working environment, the measurement range is limited
[0008] 3. Ultrasonic measurement method: using the principles of ultrasonic reflection, refraction and waveform conversion, it is mainly used for industrial product defect detection, and cannot be used for the extraction of displacement and other information

Method used

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  • Measurement method and system thereof for acquiring displacement changes of earthquake simulator
  • Measurement method and system thereof for acquiring displacement changes of earthquake simulator
  • Measurement method and system thereof for acquiring displacement changes of earthquake simulator

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Experimental program
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Embodiment

[0048] In this embodiment, the measurement system of the simulated earthquake shaking table is constructed to quickly obtain the displacement variation of the simulated earthquake shaking table test:

[0049] 1. Construction of the measurement system

[0050] Such as figure 2 As shown, the construction of the simulated seismic vibration table includes a tower, an image acquisition device composed of a camera, a lens and a laser detector, a server connected to the image acquisition device, and a terminal connected to the server that can run an embedded system, The cameras and the lenses are two matched sets, the two cameras are symmetrically arranged on both sides of the laser detector, and the two cameras and the laser detector are both slidably fixedly arranged in a linear guide rail through a base, The laser emitting end of the laser detector and the two lenses are both set up toward the tower. In a preferred embodiment of the present invention, an area to be measured is provid...

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Abstract

The invention provides a measurement method for acquiring displacement changes of an earthquake simulator. The method comprises steps of building a measurement system, identifying non-coded points and carrying out image acquisition, carrying out spatial coordinate transformation on the non-coded points on the image, carrying out three-dimensional and dynamical matching on the non-coded points on the image, carrying out sequence matching on the non-coded points on the image, tracking the image sequence, carrying out three-dimensional rebuilding, and displaying and outputting data. The invention also provides a measurement system which is used in match with the measurement method. An optical principle is used for acquiring a video image for the non-coded points identified artificially in the structure, the video image is processed based on a digital image processing technology and a related algorithm, automatic recognition and matched tracking on a measurement point position can be realized, three-dimensional rebuilding of the measurement point is thus obtained, the displacement change amount of each measurement point is acquired, and the overall measurement process is contact-free, no damages are caused, the measurement precision is high, the automatic degree is high, the measurement period is short, and the industrial advantages are huge, and the popularization and application prospect is good.

Description

Technical field [0001] The invention belongs to the technical field of optical measurement, and relates to a three-dimensional dynamic deformation measurement method and a measurement system using optical principles, in particular to a measurement method and a system for obtaining displacement changes of a simulated seismic vibration table. Background technique [0002] Seismic activity has a certain degree of unpredictability, and its sudden arrival will bring major disasters to mankind, especially the damage to housing construction will directly endanger personal safety. For this reason, the design of buildings with high earthquake resistance is of great significance. High-rise simulation earthquake shaking table test is an indispensable test and demonstration link before the construction of high-rise buildings, which provides strong technical support for the seismic resistance research and design guidance of high-rise buildings. [0003] The high-rise simulation seismic shaking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/02G01B11/16
CPCG01B11/002G01B11/028G01B11/16
Inventor 刘建立张龙唐正宗刘小波李宗剑
Owner 苏州西博三维科技有限公司
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