Adjustable three-dimensional detection system for tunnel diseases

Abstract

The invention discloses an adjustable three-dimensional detection system for tunnel diseases. The adjustable three-dimensional detection system comprises a junction tunnel apparent disease acquisitiondevice, a mechanical body structure and a data storage and processing device. The tunnel apparent disease acquisition device is composed of a structured light laser collection system and an image collection system and completes depth information acquisition of tunnel apparent diseases and two-dimensional plane information acquisition of the tunnel apparent diseases. The mechanical body structureis used for realizing a mechanical motion function of the detection system; and the data storage and processing device performs preprocessing, splicing, fusion and other processing on the acquired images and outputs the processed images. Three-dimensional detection of the tunnel apparent diseases is realized by adopting a structured light and camera fusion mode, and the problem that the existing tunnel apparent diseases cannot reflect the disease depth is solved through signal processing technologies such as image preprocessing, image splicing correction and multi-source data fusion.

Description

Technical field [0001] The invention belongs to the technical field of tunnel safety detection, and particularly relates to an adjustable three-dimensional detection system for tunnel diseases, which mainly uses structured light and digital cameras to detect the three-dimensional detection and data processing of the apparent diseases of the inner wall of the tunnel. Background technique [0002] During the operation phase of highway tunnels, lining cracks will appear due to various factors. The cracks will reduce the bearing capacity, waterproofness and durability of the concrete, and even cause the concrete to fall off and affect driving safety. Compared with the 2003 version, the "Technical Specification for Maintenance of Highway Tunnels" JTG_H12-2015 clearly puts forward the working principle of "prevention first, combined prevention and control" and requires strengthening of preventive maintenance. Preventive maintenance plays an important role in reducing tunnel life cycle ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide an adjustable three-dimensional detection system for tunnel defects, which solves the problems of the two-dimensional camera images of tunnel detection in the prior art, where there are many interferences of light intensity and stains, less available information, and automatic detection of defects. For problems such as low detection and identification efficiency, the rich characteristics of disease signals are obtained by adding one-dimensional depth information, and then an apparent disease detection technology that can obtain three-dimensional objective entities of diseases such as cracks and potholes is provided. The depth information of the disease, combined with the plane information measured by the digital camera, can effectively provide the three-dimensional representation information of the disease

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