WO2018066086A1 - Système d'inspection de béton de revêtement et procédé d'inspection de béton de revêtement - Google Patents

Système d'inspection de béton de revêtement et procédé d'inspection de béton de revêtement Download PDF

Info

Publication number
WO2018066086A1
WO2018066086A1 PCT/JP2016/079588 JP2016079588W WO2018066086A1 WO 2018066086 A1 WO2018066086 A1 WO 2018066086A1 JP 2016079588 W JP2016079588 W JP 2016079588W WO 2018066086 A1 WO2018066086 A1 WO 2018066086A1
Authority
WO
WIPO (PCT)
Prior art keywords
imaging
lining concrete
count value
point cloud
timing
Prior art date
Application number
PCT/JP2016/079588
Other languages
English (en)
Japanese (ja)
Inventor
和久 舛添
正道 安部
Original Assignee
計測検査株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 計測検査株式会社 filed Critical 計測検査株式会社
Priority to JP2018543525A priority Critical patent/JPWO2018066086A1/ja
Priority to PCT/JP2016/079588 priority patent/WO2018066086A1/fr
Publication of WO2018066086A1 publication Critical patent/WO2018066086A1/fr

Links

Images

Classifications

    • 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

Definitions

  • the present invention relates to a lining concrete inspection system and a lining concrete inspection method. More specifically, the present invention relates to a lining concrete inspection system and a lining concrete inspection method capable of reducing the inspection cost and accurately grasping the deterioration state of the lining concrete.
  • Patent Document 1 an image pickup device such as a CCD camera that can take a digital image and a laser device that can measure three-dimensional point cloud data are installed. Inspection vehicles have been proposed.
  • the image of the lining concrete is imaged with a CCD camera while running the inspection vehicle in the tunnel to be inspected, and at the same time, the three-dimensional coordinates on the surface of the lining concrete are measured as point cloud data by the laser device.
  • These image data and point cloud data are stored in the storage device.
  • the image data stored in the storage device and the point cloud data are synthesized to create a three-dimensional synthetic model, and image processing is performed based on the three-dimensional synthetic model to detect cracks and other damage on the lining concrete surface. The presence or absence is detected.
  • the present invention has been devised in view of the above points, and provides a lining concrete inspection system and a lining concrete inspection method capable of reducing the inspection cost and accurately grasping the deterioration state of the lining concrete. For the purpose.
  • an inspection system for lining concrete includes an imaging device that images a predetermined range of lining concrete at a predetermined exposure timing, and illumination that irradiates the predetermined range of lining concrete.
  • a device a laser device that acquires point cloud data in a predetermined range of the lining concrete, image data captured by the imaging device, a storage device that stores the point cloud data measured by the laser device, and the image data
  • a linking device for linking the point cloud data based on predetermined identification information.
  • the lighting device by providing the lighting device, a sufficient amount of light can be secured when the lining concrete to be inspected is imaged by the imaging device, so that a clear image can be captured.
  • the three-dimensional coordinates on the surface of the lining concrete to be inspected can be acquired as point cloud data by laser reflection on the lining concrete.
  • linking device that links image data and point cloud data based on predetermined identification information, it is possible to link image data captured by an imaging device and point cloud data measured by a laser device. it can.
  • the image data stored in the storage device and the point cloud data are provided with an arithmetic device that is synthesized based on the identification information
  • the image data captured by the imaging device and the point cloud data measured by the laser device are synthesized. In doing so, since two pieces of data can be combined based on predetermined identification information, the man-hours required for combining the data can be greatly reduced, and the accuracy of the generated combined model can be increased.
  • the associating device has an imaging number counting device that counts up the imaging number count value for each predetermined imaging cycle by the imaging device and transmits the imaging number count value to the storage device as a count pulse, Since an imaging count value corresponding to the imaging count is transmitted to each image data and point cloud data stored in the storage device, the image data and the point cloud data can be linked based on this count value.
  • a synchronization control device that controls the exposure timing of the imaging device and the lighting timing of the illumination device is provided, for example, by controlling the blinking pattern of the illumination device in synchronization with the exposure timing of the imaging device, Since it is not necessary to continuously emit light from the irradiation device during the period, the power consumption of the lighting device can be reduced.
  • the synchronization control device detects a vertical pulse of a synchronization signal transmitted from the imaging device, a horizontal pulse detection device that detects a horizontal pulse of the synchronization signal transmitted from the imaging device, and a vertical pulse
  • the exposure timing by the imaging device and the blinking timing by the illumination device can be reliably synchronized based on the synchronization signal.
  • the synchronous control device corresponds to the horizontal pulse exposure start count value corresponding to the exposure start timing of the imaging device, the horizontal pulse irradiation start count value corresponding to the lighting start timing of the illumination device, and the exposure end timing of the imaging device.
  • exposure start (end) timing by the imaging device and illumination The irradiation start (end) timing by the apparatus can be arbitrarily set.
  • the irradiation start count value is at a predetermined earlier timing than the exposure start count value, for example, when a predetermined time is required from the start of lighting of the LED as the light source of the illumination device to the stabilization of the light amount, If lighting of the lighting device is started at a timing earlier than the exposure start timing of the imaging device, the light amount of the lighting device can be sufficiently stabilized at the timing of starting exposure by the imaging device. , Always clear image data can be obtained.
  • the illumination device when the illumination end count value is the same as the exposure end count value, the illumination device always performs irradiation during the exposure period of the imaging device, so that clear image data can be acquired.
  • the lighting time by the lighting device can be minimized, and the power consumption of the lighting device can be reduced.
  • the method for inspecting lining concrete includes an imaging step of imaging a predetermined range of the lining concrete at a predetermined exposure timing, and irradiation for irradiating the predetermined range of the lining concrete.
  • the lining concrete to be inspected can be captured and image data can be acquired.
  • the image data and the point cloud data can be stored by providing a storage process for storing the image data captured in the imaging process and the point cloud data measured in the measurement process in the storage device.
  • the image data captured in the imaging process and the point cloud data measured in the measurement process are linked together and stored. Can do.
  • image data and point cloud data linked to each other based on identification information can be easily and accurately combined. Can do.
  • the associating step includes an imaging number counting step for counting up the imaging number count value for each predetermined imaging period in the imaging step, and a count pulse transmission step for transmitting the imaging number count value to the storage device as a count pulse. Since the count value corresponding to the number of times of imaging in the imaging process is transmitted to the storage device, the image data and the point cloud data can be linked based on this count value.
  • the lining concrete inspection system and the lining concrete inspection method according to the present invention can suppress the inspection cost and accurately grasp the deterioration state of the lining concrete.
  • the upward direction from the roadway installation surface of the vehicle 1 is defined as the upward direction
  • the opposite direction of the upward direction is defined as the downward direction
  • the axial direction is defined as the vertical direction
  • the traveling direction of the vehicle is defined as the longitudinal direction.
  • a lining concrete inspection system 2 used in an embodiment of the present invention is mounted on a loading platform 11 of a vehicle 1 capable of traveling on a roadway as a moving device, for example.
  • the inspection system 2 does not necessarily have to be mounted on the vehicle 1 that can travel on the roadway.
  • the inspection system 2 inspects the state of the concrete surface (covering concrete) of the tunnel inner wall, for example, and is mainly composed of an imaging device 21, an illumination device 22, a laser device 23, and a GPS device 24, which are vehicles 1 It is mounted on the loading platform 11.
  • the imaging device 21 is a digital video camera such as a CCD camera that images the concrete surface of the tunnel inner wall to be inspected, and can output the acquired image data as a digital signal, and a moving image (a frame image is obtained at predetermined time intervals). And still images can be acquired.
  • the imaging device 21 has a plurality of units (for example, 12) on an installation surface 121 that is a circumferential direction of a rectangular base 12 mounted on the loading platform 11 of the vehicle 1 and includes a side surface and a ceiling surface. Stand).
  • the base 12 does not necessarily have a rectangular shape.
  • it can be appropriately selected from shapes such as an arc shape and a trapezoidal shape.
  • the number of the imaging devices 21 can be appropriately selected according to the inspection target range of the lining concrete, the performance of each imaging device 21, or the like.
  • the illumination device 22 is a device that emits visible light corresponding to the exposure of the imaging device 21 and illuminates the lining concrete to be inspected, and uses a light source with high response to modulation such as a light emitting diode (LED). It is configured.
  • a plurality of (for example, 48) illumination devices 22 are arranged on the installation surface 121 of the base 12 like the imaging device 21.
  • the LED as the light source of the illumination device 22.
  • it can be appropriately selected from known light sources such as a xenon lamp and a halogen lamp.
  • the LED can be controlled to blink at a high speed that is not felt by human eyes. Therefore, as will be described later, blinking control in accordance with the exposure timing of the imaging device 21 is possible, and the power consumption of the lighting device 22 can be reduced. Therefore, it is preferable to use an LED as the light source of the lighting device 22. .
  • the number of lighting devices 22 can be appropriately selected according to the performance of each lighting device 22 or the number of installed imaging devices 21.
  • the laser device 23 irradiates the lining concrete to be inspected with a laser beam and receives the reflected light, thereby acquiring information such as the distance and direction to the laser device 23 and measuring points based on the information.
  • This is a three-dimensional laser scanner that calculates point group data including the three-dimensional position coordinates (hereinafter referred to as “three-dimensional point group data”).
  • the laser device 23 is installed on the rear surface of the measurement chamber 13 and the standard laser device 231 installed on the rear side of the roof surface 14 of the measurement chamber 13 mounted on the loading platform 11 of the vehicle 1.
  • a high-precision laser device 232 is installed, and the sensor portion of the laser device rotates in a plane, and laser light can be emitted to perform measurement.
  • a standard laser device 231 having a maximum of 27000 / second and a high-precision laser device 232 having a maximum of 1000000 points / second were used.
  • the standard laser device 231 and the high-precision laser device 232 may be provided as the laser device 23, respectively.
  • a configuration including either the standard laser device 231 or the high-precision laser device 232 may be employed. These can be appropriately changed depending on the situation of the lining concrete to be measured.
  • the GPS device 24 can measure the latitude, longitude, current time, and the like at which the vehicle 1 is located, and is installed on the roof surface 14 of the measurement chamber 13 mounted on the loading platform 11 of the vehicle 1. .
  • the GPS device 24 is not necessarily installed. However, by providing the GPS device 24, the position information of the vehicle 1, the current time, and the like are acquired before the traveling inspection in the tunnel by the vehicle 1, and the states of the imaging device 21, the illumination device 22, and the laser device 23 are obtained. Since calibration can be performed, highly accurate measurement can be performed.
  • the inspection system 2 includes a synchronization control device 25, an illumination control device 221, a laser control device 233, and a storage device 26 in addition to the imaging device 21, the illumination device 22, and the laser device 23 described above.
  • the imaging device 21, the illumination device 22, and the laser device 23 are connected to the synchronization control device 25 by a cable (not shown).
  • the illumination device 22 is driven and controlled by the illumination control device 221, and the laser device 23 is driven and controlled by the laser control device 233.
  • the image data captured by the imaging device 21 is stored in the first storage device 261 of the storage device 26, and the three-dimensional point cloud data measured by the laser device 23 is stored in the second storage device 262.
  • the imaging device 21, the illumination device 22, and the laser device 23 do not necessarily have to be connected to the synchronization control device 25 by a cable.
  • each may be connected by wireless communication.
  • first storage device 261 and the second storage device 262 may be provided as the storage device 26.
  • image data and three-dimensional point cloud data may be stored in one storage device.
  • FIG. 4 is a block diagram of the synchronization control device 25.
  • the synchronization control device 25 performs centralized control of the operation of the inspection system 2 and includes a vertical pulse detection device 251, a horizontal pulse detection device 252, and an imaging control device 253.
  • the imaging control device 253 mainly controls the exposure operation of the imaging device 21, and includes a horizontal pulse count device 254, a horizontal pulse count value setting device 255, and an imaging frequency counting device 256.
  • the imaging control device 253 is not necessarily integrated with the synchronization control device 25.
  • the imaging control device 253 may be provided separately from the synchronization control device 25.
  • the vertical pulse detection device 251 detects the vertical pulse VD among the synchronization signals in the video signal of the imaging device 21, and the horizontal pulse detection device 252 detects the horizontal pulse HD among the synchronization signals in the video signal of the imaging device 21.
  • the vertical pulse VD detected by the vertical pulse detector 251 and the horizontal pulse HD detected by the horizontal pulse detector 252 are used for exposure control of the imaging device 21 and blinking control of the illumination device 22 as described later.
  • the horizontal pulse counting device 254 counts up the horizontal pulses HD input from the horizontal pulse detecting device 252 when the vertical pulse detecting device 251 detects the vertical pulse VD. Based on the count value of the horizontal pulse HD, the exposure start timing and the exposure end timing of the imaging device 21 are determined, and the irradiation start timing and the irradiation end timing of the illumination device 22 are determined.
  • the horizontal pulse count value setting device 255 is for setting the exposure time of the imaging device 21 and the irradiation time in one flashing of the illumination device 22, and these are the state of the lining concrete to be inspected, It can be arbitrarily set according to the traveling speed of the vehicle 1 at the time of inspection.
  • the imaging number counting device 256 is a counter that counts up by one count in response to the completion of imaging for one frame rate by the imaging device 21.
  • the image recording interval of the imaging device 21 used in the present invention is 30 sheets per second (NTSC system).
  • the imaging number counting device 256 it is not always necessary for the imaging number counting device 256 to count up one count at a stage when imaging for one frame rate by the imaging device is completed.
  • it may be configured to count up by one count upon completion of imaging for two frame rates.
  • the image recording interval of the imaging device 21 is not necessarily 30 sheets per second.
  • an image recording interval of 25 sheets per second may be used.
  • the imaging number counting device 256 Every time the imaging number counting device 256 counts up one count, the imaging number count value SC is stored in the first storage device 261 in which image data is stored, and in the second storage in which three-dimensional point cloud data is stored. Each is transmitted to the device 262. That is, the image data and the three-dimensional point cloud data are associated with each other based on the imaging number count value SC.
  • the synchronization control device 25 generates an exposure start timing signal S1 and an exposure end timing signal S2 of the imaging device 21 based on the vertical pulse VD and the horizontal pulse HD of the imaging device 21, and in the blinking control of the illumination device 22 An irradiation start timing signal L1 and an irradiation end timing signal L2 are generated.
  • the imaging device 21 is driven and controlled based on the exposure start timing signal S1 and the exposure end timing signal S2, and the illumination device 22 is driven and controlled based on the irradiation start timing signal L1 and the irradiation end timing signal L2.
  • the synchronization control unit 25 resets the count value C of the horizontal pulse count unit 254 of the imaging control unit 253 (timing of FIG. 5). a). Subsequently, the horizontal pulse counting device 254 starts counting up the count value C of the horizontal pulse HD detected by the horizontal pulse detecting device 252.
  • an irradiation start timing signal L1 is transmitted from the synchronous control device 25 to the illumination control device 221 and irradiation of the illumination device 22 is started. Is done.
  • an exposure start timing signal S1 is transmitted from the synchronization control device 25 to the imaging device 21, and exposure of the imaging device 21 is started.
  • an exposure end timing signal S2 is transmitted from the synchronous control device to the imaging device 21.
  • the exposure of the imaging device 21 ends, the irradiation end timing signal L2 is transmitted to the lighting device 22, and the irradiation of the lighting device 22 ends.
  • the irradiation time t1 per time in the lighting control of the illumination device 22 in the embodiment of the present invention is 3 ms
  • the exposure time t2 of the imaging device 21 is 2 ms (shutter speed is 1/500 s).
  • C1, exposure start timing C2, irradiation end timing C3, and exposure end timing C4 are stored in a ROM (not shown), for example, and can be arbitrarily set according to the inspection status.
  • the irradiation start timing C1 of the illumination device 22 does not necessarily have to be earlier than the exposure start timing C2 of the imaging device 21.
  • the irradiation start timing C1 and the exposure start timing C2 may be the same timing.
  • the illumination apparatus 22 transmits the irradiation start timing signal L1 as a drive signal to the illumination control apparatus 221. Since the light quantity of the LED as the light source is not stable for a predetermined time, the irradiation start timing C1 and the exposure start timing C2 are the same. If it is the timing, the accuracy of the image data by the imaging device 21 may be reduced. Therefore, it is preferable to start imaging by the imaging device 21 at a timing when the light amount of the illumination device 22 is stabilized by delaying the exposure start timing C2 by a predetermined time from the irradiation start timing C1.
  • the irradiation end timing C3 and the exposure end timing C4 are not necessarily the same timing.
  • the irradiation end timing C3 may be set so that the irradiation of the illumination device 22 ends after a predetermined time has elapsed with respect to the exposure end timing C4.
  • the illumination end timing C3 and the exposure end timing C4 are preferably simultaneous.
  • the lighting device 22 is not necessarily controlled to blink.
  • the illumination device 22 may be constantly lit during the inspection.
  • the lighting device 22 is controlled to blink in accordance with the exposure timing of the imaging device 21, the total amount of light emitted from the lighting device 22 in one inspection period can be significantly reduced compared to the constant lighting, and thus the lighting device 22 The power consumption can be reduced.
  • FIG. 6 is a diagram showing a state in which the vehicle 1 equipped with the inspection system 2 is inspecting the deterioration state of the lining concrete while traveling in the tunnel 3.
  • the left side lane CL and the right side lane CR are defined with respect to the center line HL of the tunnel 3 as viewed in FIG.
  • the left side SL is defined as the left side SL
  • the right side SR is defined as the right side toward the center line HL in FIG. 6.
  • the traveling lane on one side in the tunnel 3 including the lining concrete 31 to be inspected by the vehicle 1 travels on the left lane (CL) at a predetermined vehicle speed (40-80 km / h).
  • the left side SL of the lining concrete 31 is imaged by the imaging device 21 and the three-dimensional point cloud data is measured by the laser device 23.
  • the lighting device 22 is controlled to blink so as to be synchronized with the exposure timing of the imaging device 21.
  • the imaging device 21 captures image data and the laser device 23 measures 3D point cloud data at the same time.
  • the 3D point cloud data is acquired by the laser device 23 in the first run, and then the imaging plan by the imaging device 21 is made. Then, the imaging device 21 may capture an image in the second run thereafter.
  • the imaging by the imaging device 21 and the measurement by the laser device 23 be performed at the same time in order to improve the consistency between the image data captured by the imaging device 21 and the three-dimensional point cloud data measured by the laser device 23. .
  • the image data captured by the imaging device 21 is stored in the first storage device 261, and the three-dimensional point cloud data measured by the laser device 23 is stored in the second storage device 262.
  • the imaging count device SC transmits the imaging count value SC to the first storage device 261 and the second storage device 262, respectively. Then, linking between both data is performed.
  • the image data and the three-dimensional point cloud data do not necessarily have to be linked based on the imaging count value SC.
  • time stamps corresponding to the acquisition times of the image data and the three-dimensional point cloud data may be transmitted, and the data may be linked based on the time stamps.
  • the vehicle 1 When the measurement of the left side surface SL of the lining concrete 31 is completed, the vehicle 1 subsequently travels on the right side lane CR, and the image by the imaging device 21 is similar to the left side surface SL with respect to the right side surface SR of the lining concrete 31. And measurement of 3D point cloud data by the laser device 23 is performed.
  • the image data and 3D point cloud data captured for the left side surface SL and the right side surface SR of the lining concrete 31 are synthesized by an arithmetic device (not shown). At this time, since the image data and the 3D point cloud data are linked based on the imaging count value SC, it is possible to create a more accurate 3D composite model.
  • the inspector can accurately determine the cracking state of the lining concrete 31 to be inspected based on the image analysis based on the image data and the 3D composite model created based on the 3D point cloud data. Become.

Abstract

Le problème décrit par la présente invention est de disposer d'un système d'inspection de béton de revêtement et d'un procédé d'inspection de béton de revêtement qui permettent une compréhension précise de l'état de détérioration du béton de revêtement et une réduction des coûts d'inspection. À cet effet, l'invention concerne un système d'inspection (2) destiné à être monté sur un véhicule (1), lequel système comprend : un dispositif d'imagerie (21) qui acquiert des données d'image d'un objet à tester ; un dispositif d'éclairage (22) qui éclaire l'objet à tester ; et un dispositif à laser (23) qui acquiert des données de groupe de points tridimensionnels de l'objet à tester. Lors de l'achèvement de l'imagerie d'une seule trame de l'objet à tester par le dispositif d'imagerie (21), une valeur de comptage d'imagerie (SC) est transmise à un dispositif de mémorisation (26) sous forme d'impulsion de comptage. Les données d'image et les données de groupe de points tridimensionnels sont associées les unes aux autres en fonction de cette valeur de comptage d'imagerie (SC), et sont mémorisées dans le dispositif de mémorisation (26). Ainsi, lorsque les données d'image et les données de groupe de points tridimensionnels doivent être synthétisées, une synthèse peut être effectuée à l'aide de cette valeur de comptage d'imagerie (SC)
PCT/JP2016/079588 2016-10-05 2016-10-05 Système d'inspection de béton de revêtement et procédé d'inspection de béton de revêtement WO2018066086A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018543525A JPWO2018066086A1 (ja) 2016-10-05 2016-10-05 覆工コンクリートの検査システム、および覆工コンクリートの検査方法
PCT/JP2016/079588 WO2018066086A1 (fr) 2016-10-05 2016-10-05 Système d'inspection de béton de revêtement et procédé d'inspection de béton de revêtement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/079588 WO2018066086A1 (fr) 2016-10-05 2016-10-05 Système d'inspection de béton de revêtement et procédé d'inspection de béton de revêtement

Publications (1)

Publication Number Publication Date
WO2018066086A1 true WO2018066086A1 (fr) 2018-04-12

Family

ID=61831568

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/079588 WO2018066086A1 (fr) 2016-10-05 2016-10-05 Système d'inspection de béton de revêtement et procédé d'inspection de béton de revêtement

Country Status (2)

Country Link
JP (1) JPWO2018066086A1 (fr)
WO (1) WO2018066086A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021014751A1 (fr) * 2019-07-19 2021-01-28
CN112884726A (zh) * 2021-02-02 2021-06-01 中冶武汉冶金建筑研究院有限公司 一种混凝土切截面识别与性能预测反馈方法及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05264223A (ja) * 1992-03-16 1993-10-12 Hitachi Ltd 立体形状・位置・姿勢検出方法とその装置
JPH11219425A (ja) * 1998-01-30 1999-08-10 Lintec Corp 観測装置及び該装置の発光制御方法
WO2003076916A1 (fr) * 2002-03-13 2003-09-18 Burn-Am Co., Ltd. Procede et dispositif d'inspection interieure pour canalisation souterraine, et procede de recherche des deteriorations du beton sur la face interieure d'une canalisation souterraine
JP2004347585A (ja) * 2003-02-21 2004-12-09 Fast:Kk 建築および土木構造物計測・解析システム
JP2011095222A (ja) * 2009-11-02 2011-05-12 Tosetsu Doboku Consultant:Kk トンネルの内壁検査システムおよびトンネルの内壁検査方法
JP2016105081A (ja) * 2014-11-19 2016-06-09 首都高技術株式会社 点群データ利用システム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05264223A (ja) * 1992-03-16 1993-10-12 Hitachi Ltd 立体形状・位置・姿勢検出方法とその装置
JPH11219425A (ja) * 1998-01-30 1999-08-10 Lintec Corp 観測装置及び該装置の発光制御方法
WO2003076916A1 (fr) * 2002-03-13 2003-09-18 Burn-Am Co., Ltd. Procede et dispositif d'inspection interieure pour canalisation souterraine, et procede de recherche des deteriorations du beton sur la face interieure d'une canalisation souterraine
JP2004347585A (ja) * 2003-02-21 2004-12-09 Fast:Kk 建築および土木構造物計測・解析システム
JP2011095222A (ja) * 2009-11-02 2011-05-12 Tosetsu Doboku Consultant:Kk トンネルの内壁検査システムおよびトンネルの内壁検査方法
JP2016105081A (ja) * 2014-11-19 2016-06-09 首都高技術株式会社 点群データ利用システム

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021014751A1 (fr) * 2019-07-19 2021-01-28
WO2021014751A1 (fr) * 2019-07-19 2021-01-28 富士フイルム株式会社 Dispositif d'affichage d'image, procédé et programme
JP7326446B2 (ja) 2019-07-19 2023-08-15 富士フイルム株式会社 画像表示装置、方法及びプログラム
CN112884726A (zh) * 2021-02-02 2021-06-01 中冶武汉冶金建筑研究院有限公司 一种混凝土切截面识别与性能预测反馈方法及系统
CN112884726B (zh) * 2021-02-02 2022-05-20 中冶武汉冶金建筑研究院有限公司 一种混凝土切截面识别与性能预测反馈方法及系统

Also Published As

Publication number Publication date
JPWO2018066086A1 (ja) 2019-06-24

Similar Documents

Publication Publication Date Title
CN105203046B (zh) 多线阵列激光三维扫描系统及多线阵列激光三维扫描方法
KR101538763B1 (ko) 터널 균열 검사 장치 및 그 제어방법
KR101111569B1 (ko) 궤도차량을 이용한 철도시설물 감시시스템 및 방법
CN106596574B (zh) 一种检测物体表面缺陷的装置及方法
KR100898061B1 (ko) 하이브리드 터널 스캐닝 장치
EP2508871A1 (fr) Appareil d'inspection, procédé de mesure pour forme en trois dimensions, et procédé de production d'une structure
CN103630088B (zh) 基于双激光带的高精度隧道断面检测方法及装置
WO1998022860A3 (fr) Machine de controle assistee par ordinateur
WO2007054359A3 (fr) Dispositif et procede pour surveiller une zone de l'espace, en particulier pour securiser une zone a risques d'une installation automatisee
CN102749336B (zh) 一种基于结构光的表面缺陷高速检测系统及其检测方法
EP3719442B1 (fr) Dispositif d'inspection de forme et procédé d'inspection de forme
WO2018066086A1 (fr) Système d'inspection de béton de revêtement et procédé d'inspection de béton de revêtement
JP2019124678A (ja) 作業端末、漏油検出装置、及び、漏油検出方法
KR20120069047A (ko) 블라인드원단 검사시스템 및 검사방법
CN102323044A (zh) 基于摄像法的机动车前照灯配光性能自适应检测方法
CN106183895B (zh) 一种单轨接触线磨耗检测装置及方法
CN113916133A (zh) 基于ccd线性阵列摄像机和红外线复合隧道裂缝检测系统
JP5298929B2 (ja) 架線検測装置
CN205991784U (zh) 一种基于工控机控制的铁路隧道限界动态检测系统
CN203011853U (zh) 多光源检测装置
CN209858420U (zh) 一种镀膜玻璃颜色检测机构
TWI519776B (zh) A method for reducing the number of operation of the defective inspection machine and the size measuring machine mechanism
CN109373913B (zh) 一种非接触式受电弓弓头碳滑块厚度检测方法
JP2020060533A (ja) 光学評価装置、および、光学評価方法
KR102346438B1 (ko) 영상정보 기반 철도 콘크리트 도상 균열 검측 장치 및 이를 이용한 철도 콘크리트 도상 균열 검측 방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16918285

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2018543525

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16918285

Country of ref document: EP

Kind code of ref document: A1