JP7249538B2 - 計測装置及び計測方法 - Google Patents
計測装置及び計測方法 Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/246—Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0008—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of bridges
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0091—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by using electromagnetic excitation or detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8803—Visual inspection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/246—Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
- G06T7/248—Analysis of motion using feature-based methods, e.g. the tracking of corners or segments involving reference images or patches
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8858—Flaw counting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8861—Determining coordinates of flaws
- G01N2021/8864—Mapping zones of defects
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- Length Measuring Devices By Optical Means (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
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- Bridges Or Land Bridges (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
本開示の一態様に係る計測装置は、構造物に掛かる荷重が変化しているときに互いに異なる時刻に撮像された、当該構造物を可動可能に支持する支持部材の複数の画像を取得する取得部と、前記複数の画像に基づいて、前記支持部材の変位を計測する計測部と、を備える。
[検査システムの構成]
まず、実施の形態に係る計測システムの構成例について図1を参照しながら具体的に説明する。図1は、実施の形態に係る計測システムの構成例を示す外観図である。計測システム100は、撮像装置110と計測装置120とを備える。
次に、実施の形態に係る計測装置120の機能構成について図3を参照しながら説明する。
以下、上記構成の計測装置120が行う動作について説明する。
上述したように、計測装置120は、構造物を可動可能に支持する支持部材の変位を計測する。そして、計測装置120は、支持部材が規定の動きをしているか否かを判定する。このため、計測装置120を利用するユーザは、構造物又は支持部材に想定外のストレスが掛かることに起因した、構造物又は支持部材の破損の可能性に係る知見を得ることができる。
以上、本開示の1つまたは複数の態様に係る計測装置について、実施の形態に基づいて説明したが、本開示は、この実施の形態に限定されるものではない。
80 支持部材
100 計測システム
110 撮像装置
120 計測装置
121 取得部
122 計測部
123 抽出部
124 領域特定部
125 判定部
126 既定の動き特定部
Claims (7)
- 構造物に掛かる荷重が変化しているときに互いに異なる時刻に撮像された、当該構造物を可動可能に支持する支持部材の複数の画像を取得する取得部と、
前記複数の画像に基づいて、前記支持部材の変位を計測する計測部と、
前記計測部によって計測された前記支持部材の変位に対して多変量解析を行って主成分を抽出する抽出部と、
前記抽出部によって抽出された主成分による前記支持部材の変位に基づいて、前記支持部材が規定の動きをしているか否かの判定を行う判定部と、を備える
計測装置。 - 前記構造物は、橋桁であって、
前記支持部材は、支承であって、
前記規定の動きは、回転を含む
請求項1に記載の計測装置。 - 前記構造物は、橋桁であって、
前記支持部材は、支承であって、
前記規定の動きは、並進を含む
請求項1に記載の計測装置。 - 前記構造物は、吊り構造物の橋桁であって、
前記支持部材は、前記吊り構造物のケーブルであって、
前記規定の動きは、前記ケーブルの引張られた方向の垂直方向への動きを含む
請求項1に記載の計測装置。 - 前記構造物は、吊り構造物の橋桁であって、
前記支持部材は、前記吊り構造物のケーブルであって、
前記抽出部は、前記ケーブルの振動数、または、前記振動数から前記ケーブルの張力を求め、
前記判定部は、前記抽出部によって抽出された主成分の振動数または前記張力に基づいて、前記判定を行う
請求項1に記載の計測装置。 - さらに、前記複数の画像を撮像する撮像部を備える
請求項1~請求項5のいずれか1項に記載の計測装置。 - 構造物を可動可能に支持する支持部材の変位を計測する計測方法であって、
前記構造物に掛かる荷重が変化しているときに互いに異なる時刻に撮像された前記構造物の複数の画像を取得し、
前記複数の画像に基づいて、前記支持部材の変位を計測し、
前記計測された前記支持部材の変位に対して多変量解析を行って主成分を抽出し、
前記抽出された主成分による前記支持部材の変位に基づいて、前記支持部材が規定の動きをしているか否かの判定を行う
計測方法。
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CN114280061B (zh) * | 2021-12-27 | 2022-10-14 | 交通运输部公路科学研究所 | 一种斜拉桥索梁锚固区技术状况的观测方法及监视窗 |
CN115876365B (zh) * | 2022-10-26 | 2023-10-27 | 华南理工大学 | 基于运动综合亮度谱的拉索索力视觉测试方法、装置及介质 |
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JP2013108945A (ja) | 2011-11-24 | 2013-06-06 | Bridgestone Corp | 積層ゴムの検査装置及び積層ゴム |
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CN101365928A (zh) * | 2003-09-22 | 2009-02-11 | 金炯胤 | 用于结构健康监测的传感器和*** |
CN102620672B (zh) * | 2011-12-01 | 2015-01-14 | 中国人民解放军63653部队 | 图像拼接技术在隧道围岩变形非接触测量中的应用 |
US9442002B2 (en) * | 2013-01-29 | 2016-09-13 | Spectral Sciences, Inc. | Remote optical sensing of the integrity of a structure using reflected or scattered light |
JP6259384B2 (ja) * | 2014-10-06 | 2018-01-10 | 株式会社安部日鋼工業 | 緊張材の伸び量計測装置、および緊張材の伸び量計測方法 |
WO2016152900A1 (ja) * | 2015-03-25 | 2016-09-29 | シャープ株式会社 | 画像処理装置及び撮像装置 |
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JP6350923B2 (ja) * | 2016-02-24 | 2018-07-04 | パナソニックIpマネジメント株式会社 | 変位検出装置および変位検出方法 |
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JP2017175517A (ja) * | 2016-03-25 | 2017-09-28 | オリンパス株式会社 | 撮像装置および撮像方法 |
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JP2013108945A (ja) | 2011-11-24 | 2013-06-06 | Bridgestone Corp | 積層ゴムの検査装置及び積層ゴム |
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WO2019187309A1 (ja) | 2019-10-03 |
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