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Tunnel three-dimensional reconstruction imaging method and system and application thereof

An imaging method and imaging system technology, applied in 3D modeling, image data processing, using wave/particle radiation, etc., can solve problems affecting line traffic, low work efficiency, and high safety risks, and achieve clear images and convenient operation , the effect of low identification difficulty

Pending Publication Date: 2021-05-07
铁科润诚成都工程技术咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to: use two-dimensional data collection and analysis to detect tunnels in the existing general tunnel non-destructive detection methods existing in the prior art, which is inconvenient to operate, low in work efficiency, poor in detection effect, high in safety risks, and has a great impact To solve the problem of line traffic, provide a tunnel stereo reconstruction imaging method, system and its application

Method used

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  • Tunnel three-dimensional reconstruction imaging method and system and application thereof
  • Tunnel three-dimensional reconstruction imaging method and system and application thereof

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Experimental program
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Embodiment 1

[0035] A tunnel stereo reconstruction imaging method according to the present invention, comprising:

[0036] Setting virtual grid lines on the inner surface of the tunnel structure 10 to be detected is divided into several rectangular detection unit areas 11;

[0037] Using several data collectors 31, each of the data collectors 31 performs electromagnetic wave scanning for each of the corresponding detection unit areas 11. Specifically, the scanning object corresponding to each of the data collectors 31 is along the tunnel axis. A column of the detection unit area 11 in the direction;

[0038] The collected electromagnetic wave signal is converted into a digital signal and stored as data by the computer processing and analysis system 41, and a unique unit data is formed for each detection unit area 11, and the computer processing and analysis system 41 can recall all stored data at any time. The unit data of the detection unit area 11 establishes a digital matrix to form a ...

Embodiment 2

[0043] Such as figure 1 and 2 As shown, a system according to the present invention using the tunnel stereo reconstruction imaging method described in Embodiment 1 includes a system base 23 , a circular scanning platform 21 and a transverse scanning platform 22 .

[0044] The horizontal scanning platform 22 is connected to the bottom of the circular scanning platform 21, the circular scanning platform 21 and the horizontal scanning platform 22 are adapted to the shape of the inner wall of the tunnel, and the system base 23 is provided with a longitudinal Moving the slideway 24 , the circular scanning platform 21 and the horizontal scanning platform 22 can move along the longitudinal moving slideway 24 .

[0045] The system base 23 is provided with a system traveling wheel 27, and the system traveling wheel 27 is used to move axially along the tunnel. The circular scanning platform 21 is provided with a circular moving slideway 25. A lateral movement slideway 26 is provided, ...

Embodiment 3

[0051] A tunnel stereo reconstruction imaging method or system according to the present invention, in addition to being applied to the construction quality of the tunnel under construction and the non-destructive inspection of the tunnel in operation as in the embodiment 1 or the embodiment 2, can also be applied to obtain the BIM data information of the tunnel .

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Abstract

The invention discloses a tunnel three-dimensional reconstruction imaging method and system and application thereof. The method comprises the steps of: carrying out high-precision and multi-section scanning on each detection unit region divided on a tunnel main body structure through precise high-frequency electromagnetic waves; converting acquired electromagnetic wave signals into digital signals; generating a digital matrix based on the digital signals through a computer; and a three-dimensional image can be formed. The quality of the tunnel structure can be judged more visually and accurately. The method and system have the characteristics of short scanning time, convenience, rapidness, high-density resolution, clear images, three-dimensional directness, capability of generating high-precision sectioning planes in various directions and the like; the method and system can be used for construction quality evaluation of a tunnel under construction, three-dimensional nondestructive detection of an operated tunnel and building information model acquisition of the tunnel, can greatly improve the accuracy and efficiency of detection work, lower the risk of the detection work; and a three-dimensional image reconstructed after detection has the advantages of being visual and low in identification difficulty; and an important guarantee is provided for engineering quality and operation safety of traffic infrastructure.

Description

technical field [0001] The invention relates to the field of traffic infrastructure detection, in particular to a tunnel stereo reconstruction imaging method, system and application thereof. Background technique [0002] At present, domestic transportation infrastructure has been adjusted from high-speed development to high-quality development, and the industry has greatly increased the emphasis on engineering quality and operational safety of transportation infrastructure. Therefore, the detection of tunnel structures and the rock and soil characteristics behind them is an extremely important work. [0003] The existing common tunnel non-destructive testing method is to use the electromagnetic wave scanner to advance along the axial direction of the tunnel, and then scan to obtain a two-dimensional section data along the axial direction of the tunnel, and scan back and forth five or seven times. The scanning position includes the tunnel vault and Side walls, that is, to sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/00G01B15/04G01B15/00G06T17/00
CPCG01N23/00G01B15/04G01B15/00G06T17/00
Inventor 王薇张春武王晓勇李小平张瑞杰
Owner 铁科润诚成都工程技术咨询有限公司
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