Bridge displacement monitoring system based on regional distribution sensing and DIC technology fusion

Abstract

The invention discloses a bridge displacement monitoring system based on regional distribution sensing and DIC technology fusion, and the system comprises distributed long-gauge FBG sensors which are fixed at key parts of a bridge and are used for monitoring the transverse, longitudinal and vertical strain of the bridge; a video displacement meter based on the DIC technology which is installed near a bridge pier and used for monitoring transverse, longitudinal and vertical displacement of a bridge; a fiber bragg grating demodulator which is connected with the distributed long-gauge FBG sensor through a transmission fiber and is used for demodulating a wavelength sensing signal generated by the distributed long-gauge FBG sensor; an industrial personal computer which is connected to the fiber bragg grating demodulator and the video displacement meter and is used for data collection and data fusion processing; and a remote server which receives data of the industrial personal computer through the GPRS DTU module and carries out health assessment on the bridge structure. According to the invention, the displacement of the bridge structure can be well monitored for a long time, the credibility of the result is enhanced through the fusion of technical means, and the method has obvious application value.

Description

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AI Technical Summary

Benefits of technology

The inventor's new type of technology described in this patented design helps prevent damage caused during construction or other activities that may affect the structure being measured over time due to changes made on it. This makes sure more accurate measurements are taken at different times throughout an entire building while maintaining their integrity.

Problems solved by technology

This patented technical solution describes how current methods of inspecting roads involve manually measuring each section of the entire route before taking any necessary repairs or remedial actions after they were completed. However, these conventional ways may result in significant costs associated with maintaining safe driving over vast distances. Therefore, new solutions aim towards developing more efficient and reliable techniques that provide better inspections without requiring manual labor.

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