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System and method for quickly inspecting tunnel defect based on machine vision

A technology for machine vision and tunnel damage, which is applied in the directions of instruments, photogrammetry/video metrology, measuring devices, etc., can solve the problems of cracks and can not realize automatic real-time processing of cracks, so as to improve safety, reduce investigation costs and Consume and overcome the effects of high labor intensity

Active Publication Date: 2012-05-02
BEIJING MUNICIPAL ENG RES INST
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Problems solved by technology

[0005] The disadvantage of this method is that the detection result depends on the imaging quality of the image and the reliability of the recognition algorithm. The imaging of the camera requires high-brightness lighting conditions, and the imaging is easily affected by the vibration and speed of the detection vehicle. Therefore, it is impossible to realize the automatic real-time processing of cracks

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  • System and method for quickly inspecting tunnel defect based on machine vision
  • System and method for quickly inspecting tunnel defect based on machine vision
  • System and method for quickly inspecting tunnel defect based on machine vision

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Embodiment Construction

[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0041] see figure 1 , figure 1The structure of the tunnel defect rapid investigation system based on machine vision technology provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the present invention are shown, and now in conjunction with the accompanying drawings, the present invention will be described in detail as follows.

[0042] The described tunnel defect rapid investigation system based on machine vision technology includes an investigation carrier vehicle, a machine vision subsystem, a laser distance measurement subsystem, a photoelectric speed measurement subsystem, a control subsystem, and a data processing subsystem installed on the investigation carrier vehicle. and power subsy...

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Abstract

The invention discloses a system and method for quickly inspecting a tunnel defect based on machine vision. The system is arranged on an investigation bearing vehicle. The system comprises a machine vision sub-system used for acquiring the to-be-investigated object image data by a CCD (Charge Coupled Device) camera, a laser ranging sub-system used for measuring an imaging distance of an image acquired by the machine vision sub-system by a laser ranging method, a photoelectric speed measuring sub-system used for providing a corresponding coordinate of the acquired image in a tunnel, a control sub-system used for controlling the laser ranging sub-system and the photoelectric speed measuring sub-system, transmitting the data acquired by the laser ranging sub-system and the photoelectric speed measuring sub-system to a data processing sub-system and triggering the machine vision sub-system to acquire an image and transmit the image to the data processing sub-system, a data processing sub-system used for processing the image acquired by the machine vision sub-system according to the data from the control sub-system, and a power supply sub-system used for providing voltage for other sub-systems. According to the invention, the general tunnel defect can be regularly and quickly inspected and the inspecting process is safe, quick, full-automatic and real-time without influencing normal work of the tunnel.

Description

technical field [0001] The invention relates to tunnel disease investigation technology, in particular to a machine vision-based rapid tunnel disease investigation system, which is applied to tunnel disease detection. Background technique [0002] In recent years, various highways, railways, underwater and subway tunnels that have been built in my country have appeared to varying degrees of lining cracks, deformation and water leakage and other diseases. The existence of diseases will affect the traffic quality, threaten the safety of driving in the tunnel, and cause safety accidents. There is an urgent need for scientific and effective analysis and research methods to analyze and evaluate the impact of diseases on the safety and performance of lining structures. provide a basis for countermeasures. The premise of tunnel disease prevention and control is to carry out detailed and comprehensive investigation on the types, distribution and degree of tunnel diseases. The syste...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/00
Inventor 叶英杨新锐张智明
Owner BEIJING MUNICIPAL ENG RES INST
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