Tunnel full-section high-speed dynamic health detection device and method based on active panoramic vision

An active panorama and health detection technology, applied in measuring devices, optical devices, instruments, etc.

Active Publication Date: 2015-04-29
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] To realize the content of the above invention, it is necessary to solve five core problems: (1) realize a kind of panoramic laser light source; Estimate the longitudinal mileage coordinates of the track direction; (4) use computer vision technology to reconstruct the three-dimensional tunnel; (5) establish a spatial database to store and release tunnel deformation information. Establish a three-dimensional dynamic model of tunnel deformation and form an early warning mechanism

Method used

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  • Tunnel full-section high-speed dynamic health detection device and method based on active panoramic vision
  • Tunnel full-section high-speed dynamic health detection device and method based on active panoramic vision
  • Tunnel full-section high-speed dynamic health detection device and method based on active panoramic vision

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Embodiment 1

[0057] refer to Figure 1-16 , a tunnel full-section high-speed dynamic health detection device and method based on active panoramic vision, its hardware includes: tunnel inspection vehicle, active panoramic vision sensor, RFID reader, wireless receiving and sending unit, controller, station-level communication System or central monitoring center server. The central monitoring center server forms a full tunnel safety inspection network through the station-level communication system. The station-level communication system receives the tunnel cross-sectional laser scanning image sent from the wireless receiving and sending unit configured on the tunnel inspection vehicle, and transmits the tunnel cross-sectional laser scanning image Timely transmission to the central monitoring center server through the full tunnel security detection network.

[0058] The tunnel inspection vehicle is equipped with an active panoramic vision sensor, RFID reader, distance measuring wheel, wireles...

Embodiment 2

[0152] In this embodiment, other implementations are similar, the difference is that the controller on the tunnel inspection vehicle increases the storage capacity, and when the tunnel inspection vehicle completes the inspection, the tunnel scanning image is sent to the central monitoring center server through the network.

Embodiment 3

[0154] In this embodiment, other implementation methods are similar, the difference is that according to the different tunnel cross-sections, the method of calculating the centroid of the tunnel cross-section is adopted in the tunnel central axis extraction unit, and the centroid connection line of each cross-section is used as the center of the tunnel. Axis, the distance from the edge point of the inner wall of the tunnel to the central axis is used as the tunnel deformation detection parameter.

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Abstract

The invention discloses a tunnel full-section high-speed dynamic health detection device based on an active panoramic vision. Hardware of the device comprises a tunnel detection trolley, an active panoramic vision sensor, an RFID reader and a processor. System software comprises an omnibearing face laser information analysis and point cloud data obtaining unit, a tunnel center axis extracting unit, a noise reducing and adjustment processing unit, a three-dimensional modeling and deformation analyzing unit, a full tunnel all-section cross section benchmark database, a full tunnel longitudinal section splicing unit, a displacement monitoring and sedimentation monitoring unit, a full tunnel health examination result database and a tunnel longitudinal section variable shift amount three-dimensional visualization unit. Transverse and longitudinal deformation of a tunnel are analyzed and recognized by carrying out machine vision processing on laser scanning fracture surface slice images of the inner wall of the tunnel. The invention further provides a tunnel full-section high-speed dynamic health detection method based on the active panoramic vision, and effective technology support is provided for daily maintenance of tunnels of metros and high-speed rails.

Description

technical field [0001] The present invention relates to the application of panoramic laser light source, omnidirectional visual sensor, digital image processing, three-dimensional reconstruction technology and computer vision technology in automatic detection and three-dimensional modeling of tunnels, especially relates to a full-section tunnel based on active panoramic vision The high-speed dynamic health detection device and method are mainly used in automatic health monitoring during the operation of subways and high-speed rail tunnels. Background technique [0002] The health monitoring of subway and high-speed rail tunnels can be divided into two phases: the construction phase and the operation phase. During the operation of railway tunnels, the safety of tunnels is mainly affected by the following aspects: first, the overall settlement of the track bed caused by long-term vibration loads during train operation; second, because most long tunnels are in complex geologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16
Inventor 汤一平陈麒胡克钢周伟敏吴挺鲁少辉韩旺明王伟羊韩国栋
Owner ZHEJIANG UNIV OF TECH
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