Multimode GNSS high-precision real-time deformation monitoring system

Abstract

The invention relates to a multimode GNSS high-precision real-time deformation monitoring system designed for specially detecting slight deformation of artificial buildings and natural landform. The system can be used for all-weather all-day uninterrupted unattended monitoring, reaches the accuracy of real-time 3 mm and day-observation 1 mm, can be used for automatic intelligent prewarning and broadcasting, includes threes parts including data acquisition, service center as well as display and prewarning, and meanwhile supports various satellite positioning systems such as GPS, Beidou, GLONASS and GALILEO, wherein the data acquisition subsystem is used for data acquisition for satellite signals through a receiver and matched soft hardware, and sends data to the service center through a wired or wireless network transmission manner; the service center subsystem is used for quick data processing for all signals received by the receiver, obtains the real-time position of the receiver through the resolving of a high-precision multimode GNSS system dynamic combined difference positioning model, and stores the original collected data and all the position data in a data base for providing latter inquiry and analysis; and the display and prewarning subsystem accesses the service center, and downloads the real-time data or history data for real-time display or pre-warning analysis.

Description

technical field [0001] The invention relates to a three-dimensional deformation monitoring system which utilizes the global navigation satellite system (GNSS) technology to detect the slight deformation of artificial buildings and natural topography. Background technique [0002] Traditional measurement methods are mainly ground monitoring methods or photogrammetry methods; measurement is limited by line-of-sight, and the selection of monitoring network shapes and points requires high requirements; observation errors will continue to accumulate, and the distribution of observation accuracy at each monitoring station is uneven; work Large volume, complex operation, requiring a lot of manpower and material resources; observation accuracy will also be affected by weather, personnel, etc.; deformation response is slow, and it is necessary to collect data from monitoring points and analyze in-house processing to obtain deformation status and trends ;Periodic operations may lead t...

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Problems solved by technology

[0002] Traditional measurement methods are mainly ground monitoring methods or photogrammetry methods; measurement is limited by line-of-sight, and the selection of monitoring network shapes and points requires high requirements; observation errors will continue to accumulate, and the distribution of observation accuracy at each monitoring station is uneven; work Large volume, complex operation, requiring a lot of manpower and material resources; observation accuracy will also be affected by weather, personnel, etc.; deformation response is slow, and it is necessary to collect data from monitoring points and analyze in-house processing to obtain deformation status and trends ;Periodic operations may lead to the failure to find the existing deformation danger or the sudden deformation; limited by the range, there will always be angle or length constraints, which can only be changed within a certain range; too dependent on manual operation, Unable to realize fully automatic deformation monitoring and early warning

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