Evaluation system and evaluation method for deformation monitoring safety

Abstract

The invention discloses an evaluation system and an evaluation method for deformation monitoring safety based on MIMUs. The MIMUs which are used as monitoring pitch points are structured by MEME accelerometers, gyroscopes, magnetometers and thermometers and are arranged on a bionic spider network which is structured by electric optical fiber cables, the electric optical fiber cables are used for supplying electric power and transferring a data, a WIFI module is used for transferring the data in an emergency, and an integrated data processing device is used for processing the data and evaluating the safety. When the effect of a temperature is considered, the deformation can cause a data change, and through the variation degree of the data, the deformation degree is evaluated. Besides, through calculating a second-order central moment of a monitoring data, normalized deformation degree evaluation is performed, and the safety level is evaluated in a real-time manner. The deformation monitoring safety evaluation system is easy to realize, high in reliability and more accurate.

Description

Technical field [0001] The present invention involves a deformed monitoring safety assessment system and evaluation method, which belongs to multidisciplinary cross -technology fields such as inertial navigation, optical fiber technology, bionic technology, signal processing and security technology. technical background [0002] Deformation is a common phenomenon in nature. It refers to the change of the shape, size and location of the deformation body in the time domain and space domain. It is considered permitted within a certain range.Dam, bridge, road base, slope, large buildings, and surface sinking sinks of the mining area require deformation monitoring and conduct safety assessment. [0003] At present, deformation monitoring has ground monitoring technology, such as measurement robots and laser scanners, but these systems are monitored in real time, and massive data processing is required. Data processing is difficult; underground monitoring technology, such as traditiona...

AI Technical Summary

Problems solved by technology

[0003] At present, there are ground monitoring technologies for deformation monitoring, such as measuring robots and laser scanners, etc., but these systems monitor in real time and require massive data processing, which makes data processing difficult; underground monitoring technologies, such as traditional strain gauges, Large interference, high probability of failure and poor durability, laying optical fibers underground, good stability against electromagnetic interference, but the survival rate of fiber grating strain sensors is low; ground monitoring technologies, such as the use of GPS technology, D-InSAR (differential interference interference Radar measurement) and airborne laser three-dimensional scanning technology, but the GPS receiver in the mountains and valleys, underground, densely built areas and deep forests, due to the blockage of satellite signals and the influence of multipath effects, its monitoring accuracy and reliability are not good High or impossible to monitor, synthetic aperture radar differential interferometry and airborne laser 3D scanning are too costly and demanding and cannot work 24 / 7

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