High-speed detection system and detection method for tunnel defects

A detection system and tunnel technology, applied in the field of high-speed detection systems for tunnel defects, can solve problems such as many blind spots, large errors, and inability to effectively reduce vehicle vibration measurement errors, and achieve the effect of improving accuracy and avoiding measurement errors.

Active Publication Date: 2018-01-16
樊晓东
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Problems solved by technology

The structured light source adopts a point-by-point measurement method to obtain a spiral-shaped image, and then fits it into a three-dimensional image, so there are many blind spots and large errors
In addition, this case reduces the measurement error caused by vehicle vibration by fixing the position of the light source and high-speed camera, which cannot effectively reduce the measurement error caused by vehicle vibration when the detection vehicle is moving at high speed

Method used

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  • High-speed detection system and detection method for tunnel defects
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  • High-speed detection system and detection method for tunnel defects

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0040] Such as Figures 1 to 2 The high-speed detection system for tunnel defects of the present invention shown at least includes a movable detection platform, a main control unit 1, a linear laser 2, an area array CCD camera 3, a displacement sensor 6, a synchronous controller 4, a high-speed storage module 9, Storage module 8, correction module 7 and inertial navigator 5.

[0041] The detection platform is the carrying device of the system, which can be a tunnel trolley. When the tunnel trolley is walking on the track, the system acquires image information of the inner side of the tunnel in real time to obtain a panoramic image.

[0042] The main control unit 1 is the central processing device of the present invention, which mainly controls the data transmission of each eq...

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Abstract

The present invention proposes a high-speed detection system and method for tunnel defects, which includes a main control unit, a linear laser, an area array CCD camera, an image compression unit, a displacement sensor, a synchronous controller, an image storage unit, a storage module, and a correction module and inertial navigators. The invention designs a special-purpose measuring locomotive as a mobile monitoring platform, which is especially suitable for subway tunnel monitoring, and can effectively and quickly measure the space structure of tunnels such as subways; use the actual measured data to compare with the actual real distance, perform error analysis, and adjust parameter settings, which is very large The accuracy of the measurement is improved to a certain extent; the inertial navigator corrects the XYZ axial vibration of the mobile monitoring platform to avoid the measurement error introduced by the mobile measurement.

Description

technical field [0001] The invention relates to a high-speed detection system and detection method for tunnel defects, which are used for detecting deformation and cracks in tunnels such as subways. Background technique [0002] With the continuous advancement of computer technology and the continuous improvement of people's production and living needs, solid 3D modeling has received more and more attention and research. 3D modeling technology can be applied to operation simulation, equipment data visualization, data space analysis, etc. , such as geographic information system (3D-GIS). In the field of reverse engineering, sample digitization technology has a wide demand for non-contact digital measuring instruments, and digital measurement methods are divided into contact and non-contact. It can be seen that the non-contact laser ranging method also has very important research significance for reverse engineering. Nowadays, the construction of railways and highways and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/88G01B11/24G01B11/16
Inventor 樊晓东孟俊华唐文平刘家宾樊晓莉惠艳萍冯欣冯宾田明
Owner 樊晓东
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