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Rapid detection system of railway tunnel lining surface disease

A detection system and lining section technology, which are applied in the field of vehicle-mounted tunnel lining surface disease rapid detection system, can solve problems such as difficult implementation, long distance between cameras and light sources, and complex system structure, and achieve stable image quality and simple system installation scheme. , the effect of reducing the number of cameras

Pending Publication Date: 2018-07-10
CR TECHCAL DEV CORP +2
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Problems solved by technology

However, for railway tunnels (especially high-speed railway tunnels), due to the large section size, if this scheme is adopted, a large number of area array cameras are required to stitch and cover the tunnel section; Because the object distance of the camera and the light source is relatively far, this requires a large number of area array high-brightness light sources that can cover the detection area, resulting in a complex system structure, which is difficult to implement in engineering practice

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  • Rapid detection system of railway tunnel lining surface disease
  • Rapid detection system of railway tunnel lining surface disease
  • Rapid detection system of railway tunnel lining surface disease

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Embodiment Construction

[0028] In order to make the purpose, technical solution and advantages of the invention clearer, the invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0029] First, clarify the definitions of several terms used in the following text.

[0030] The first space coordinate: the coordinate system based on the laser sensor's own coordinate system.

[0031] Track plane: the plane formed by the top surfaces of the left and right rails.

[0032] Track space coordinates: perpendicular to the track plane, the plane ...

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Abstract

The present invention discloses a rapid detection system of a railway tunnel lining surface disease. The system comprises: an image rapid collection unit S1 configured to collect lining section imagesP1-Pn; a section scanning unit S2 configured to convert an overall dimension to first space coordinates (x, y) corresponding to a plurality of pixel points in the lining section images P1-Pn; a mileage and synchronization unit S3 configured to send synchronization triggering signals to the image rapid collection unit S1 and the section scanning unit S2 to allow the two to perform sampling based on a travel distance and obtain mileage data z; a compensation unit S4 configured to obtain a relative displacement d and a deflection angle [Alpha] of a vehicle body relative to an initial state in aprocess of detection of vehicle travel; and an image processing unit S5 configured to form a three-dimensional tunnel lining surface image having geometrical characteristics and spatial positions of diseases. The detection system provided by the invention is convenient to install and high in resolution, can perform correction of a measurement value and can observably improve the tunnel lining surface disease detection efficiency.

Description

technical field [0001] The patent of the present invention relates to the field of detection of tunnel lining defects, in particular to a vehicle-mounted rapid detection system for tunnel lining surface defects. Background technique [0002] According to investigations, there are various degrees of water leakage, lining cracks and other diseases in my country's railway operating tunnels. Among them, water leakage and lining cracks will lead to corrosion of steel bars in the lining and corrosion of structural concrete, which will seriously affect the stability of the tunnel structure; especially for high-speed railways, the loss of blocks caused by cracks will directly endanger the safety of railway traffic, with serious consequences. Therefore, the rapid inspection of tunnel lining diseases is the focus of the management department. [0003] In response to this demand, relevant institutions and scholars at home and abroad have successively proposed some automatic monitoring...

Claims

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Application Information

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IPC IPC(8): G01B11/24
CPCG01B11/24
Inventor 柴雪松李健超张翠兵蔡培尧薛峰暴学志段培勇凌烈鹏时佳斌杨梦蛟关杨
Owner CR TECHCAL DEV CORP
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