High-speed detection system and method of 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 cannot effectively reduce vehicle vibration measurement errors, and achieve the effect of avoiding measurement errors and improving accuracy.

Active Publication Date: 2014-09-17
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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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 invention provides a high-speed detection system and method of tunnel defects. The system comprises a master control unit, a linear laser, an area array charge coupled device (CCD) camera, an image compression unit, a displacement sensor, a synchronous controller, an image storage unit, a storage module, a correction module and an inertial navigator. A special measurement locomotive serves as a mobile monitoring platform for the design and is particularly suitable for subway tunnel monitoring, and subway and other tunnel space structures can be effectively, rapidly and dynamically measured; the actually measured data is compared with actual real distance, errors are analyzed, the parameter setting is adjusted, and the measurement accuracy is greatly improved; moreover, the XYZ axial vibration of the mobile monitoring platform is subjected to error correction through the inertial navigator, and a measurement error is prevented from being introduced into 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 Applications(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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