Real-time deformation monitoring pre-warning system and real-time deformation monitoring pre-warning method based on inertia-assistance positioning receiver

Abstract

The invention relates to a real-time deformation monitoring pre-warning system based on an inertia-assistance positioning receiver and a real-time deformation monitoring pre-warning method based on the inertia-assistance positioning receiver. The real-time deformation monitoring pre-warning system is characterized by comprising a GNSS (global navigation satellite system) receiver, an accelerometer, a deformation monitoring device including a data interface and a time synchronization module, and a GNSS correction information obtaining device connected with the GNSS receiver and the deformation monitoring device respectively, wherein the data interface is connected with the time synchronization module in sequence, and the GNSS receiver and the accelerometer are connected with the data interface simultaneously. The GNSS receiver outputs the precise positioning result in real time; meanwhile, the accelerometer is adopted to help to capture dynamic deformation signals, the sampling rate stored by data is adjusted reasonably, and the storage space is saved; and due to the arrangement of a buffer area, the high-sampling-rate data of foreboding period of the severe deformation can be stored completely. The system and the method can be widely applied to the monitoring and the pre-warning of the geological disasters such as earthquake, landslide and the like, and applied to the deformation monitoring of dams, bridges, high-rise buildings and the like.

Description

technical field [0001] The invention relates to a real-time deformation monitoring and early warning system and method thereof, in particular to a real-time deformation monitoring and early warning system and method based on an inertial auxiliary positioning receiver. Background technique [0002] In recent years, with the increase of geological disasters such as global earthquakes, landslides, and surface subsidence, and the emergence of large-scale artificial civil structures and architectural structures, deformation monitoring and abnormal early warning of large-scale structures have become urgent technical problems to be solved. Its technical difficulties include: real-time measurement, balance of precise static measurement and dynamic measurement, long-term storage of massive data, etc. Global satellite navigation technology (GNSS) has the advantages of convenient deployment, low cost, and stable accuracy. Especially with the maturity of GNSS precise positioning techno...

AI Technical Summary

Problems solved by technology

In order to be able to capture the dynamic information that may appear in the structural deformation, the sampling rate is required to be as high as possible; but this also causes an excessive burden on data storage, and long-term recording requires a huge amount of storage space and corresponding hardware costs

Moreover, under normal circumstances, the deformation of most monitored structures basically does not contain high dynamic information, only slow and close to static changes, so there is no need to save high sampling rate data

However, if only low sampling rate data is recorded, once severe deformation occurs, high dynamic displacement cannot be captured and the most critical information will be missed

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