Real-time deformation monitoring system based on GNSS

A deformation monitoring and monitoring station technology, applied in the field of GNSS-based real-time deformation monitoring system, can solve the problems that real-time monitoring cannot be achieved, and the positioning accuracy cannot meet the application scenarios of millimeter-level deformation monitoring.

Inactive Publication Date: 2017-06-20
QIANXUN SPATIAL INTELLIGENCE INC
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Problems solved by technology

However, the centimeter-level network RTK technology cannot meet the millimeter-level deformation monitoring application scenarios because of its positioning accuracy, and can only serve the sub-decimeter-level real-time deformation monitoring
However, GAMIT and Bernese technologies rely on the precis...

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  • Real-time deformation monitoring system based on GNSS

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are only used to illustrate the technical solutions of the present invention rather than limit the protection scope of the present invention.

[0017] Embodiments of the present invention disclose a real-time deformation monitoring system based on GNSS, such as figure 1 The system shown includes:

[0018] Data monitoring, calibration, storage, and distribution processing center: receive real-time GNSS continuous operation reference station clusters and GNSS observation data of all monitoring points deployed on the monitoring object, and evenly select the reference stations around the monitoring object, Send its data and monitoring data to the deformation monitoring data processing module, and store the observation data at a sampling interval of 30s;

[0019] Deformation monitoring data processing module: ...

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Abstract

The invention relates to a GNSS-based real-time deformation monitoring system, including a data monitoring, calibration, storage, and distribution processing center, a deformation monitoring data processing module, a real-time dynamic filtering centimeter-level deformation early warning module, and a near real-time two-way filtering/overall adjustment sub- Centimeter-level deformation early warning module, precise post-processing + time series analysis millimeter-level deformation analysis and prediction module. Real-time, near-real-time, post-processing, deformation warning and prediction with step-by-step improvement in accuracy, proposed a fusion scheme of various baseline filtering and adjustment methods, so that the accuracy is improved step by step, real-time warning of centimeter-level deformation, and millimeter-level Time-lapse update of displacement and prediction of deformation trend.

Description

technical field [0001] The invention relates to a real-time deformation monitoring system, in particular to a GNSS-based real-time deformation monitoring system. Background technique [0002] The Global Navigation Satellite System (GNSS) has been widely used in deformation monitoring. Its basic principle is to use the terminal to receive electromagnetic wave signals from satellites to determine the terminal position. The terminal measures the electromagnetic wave phase value up to the millimeter level, so it can GNSS positioning technology is used to determine the millimeter-level terminal position. However, the centimeter-level network RTK technology cannot meet the application scenarios of millimeter-level deformation monitoring because of its positioning accuracy, and can only serve the real-time monitoring of sub-decimeter-level deformation. However, GAMIT and Bernese technologies rely on the precision ephemeris, precision clock error, DCB, ERP and other products of the...

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Application Information

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IPC IPC(8): G01B7/16
CPCG01B7/16
Inventor 范国泽崔红正易玉丹
Owner QIANXUN SPATIAL INTELLIGENCE INC
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