A high-precision intelligent detection method for bridge diseases based on spatial position

Abstract

The invention relates to a high-precision intelligent detection method for bridge diseases based on spatial position. The method comprises the following steps: adopting a high-definition image acquisition system, taking photos of the side surface, the beam bottom and the bridge deck of the bridge to acquire image maps of each part of the bridge and record the position information of the collectedimages; The image data and the position information data are imported into an image processing software to make a mosaic image map of each part of the bridge; Import the mosaic image into the bridge disease intelligent identification system; Bridge disease three-dimensional space file system is established. After the bridge disease information and the bridge three-dimensional model space are automatically matched, the bridge three-dimensional model data matching the bridge disease information are stored in the database, so that the bridge disease information can be called and viewed. The invention realizes automatic collection and intelligent analysis of bridge detection data, reduces field work workload of detection technicians and improves detection efficiency.

Description

technical field [0001] The invention relates to bridge disease detection, in particular to a high-precision intelligent detection method for bridge diseases based on spatial positions. Background technique [0002] According to the "Technical Specifications for Urban Bridge Maintenance (CJJ99-2003)" promulgated and implemented by the Ministry of Construction of the People's Republic of China on March 1, 2004 and the "Code for Maintenance of Highway Bridges and Culverts (JTGH11-2004)" promulgated and implemented on June 28, 2004 Regulation. Bridge inspections are divided into regular inspections, regular inspections and special inspections. 3.2.1 of "Code for Maintenance of Highway Bridges and Culverts (JTGH11-2004)" stipulates that the cycle of frequent inspection depends on the technical condition of the bridge, generally not less than once a month, and irregular inspections should be strengthened during the flood season. "Technical Specifications for Urban Bridge Mainten...

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Problems solved by technology

[0008] 1. The expressway has the characteristics of heavy traffic flow and inconvenient closed construction. The traffic safety hazard in the inspection process has always been the biggest safety hazard in the inspection process. Compared with the fully closed road operation, the inspection operation under the condition of traffic is more dangerous ;

[0009] 2. For bridges with special structures (such as cable-stayed bridges, suspension bridges, concrete-filled steel tube arch bridges, etc.) or bridges with long spans and high piers, traditional detection tools are basically useless and can only return to the original form of manual detection;

[0010] 3. Experienced inspectors are required to use relevant proprietary instruments to identify bridge diseases. The whole process is intensive and long-term. The inspection process is highly dependent on inspectors, so human detection errors cannot be avoided.

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