CN216696675U

CN216696675U - GNSS and InSAR combined surface subsidence automatic monitoring device

Info

Publication number: CN216696675U
Application number: CN202122341512.2U
Authority: CN
Inventors: 杨俊�; 杨珂; 叶伟; 邓其龙; 袁堃; 茆骥
Original assignee: Anhui Nanrui Jiyuan Power Grid Technology Co ltd; Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd; State Grid Electric Power Research Institute
Current assignee: Anhui Nanrui Jiyuan Power Grid Technology Co ltd; Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd; State Grid Electric Power Research Institute
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-06-07
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a ground surface subsidence automatic monitoring device combining GNSS and InSAR, which is connected with an InSAR server, and comprises a GNSS module, a processing module, a communication module and a calculation unit, wherein the GNSS module comprises a GNSS receiver antenna and a GNSS OEM board card, the GNSS receiver antenna is connected with the GNSS OEM board card, the GNSS OEM board card is connected with the processing module, the calculation unit is connected with the processing module and the InSAR server through the communication module, the bottom of the monitoring device is fixed on the ground surface, and the GNSS module and the communication module are arranged at the top of the monitoring device. The utility model provides a specific implementation device for the combination of GNSS and InSAR to meet the requirement of monitoring the surface subsidence.

Description

GNSS and InSAR combined surface subsidence automatic monitoring device

Technical Field

The utility model relates to the technical field of engineering deformation monitoring, in particular to a GNSS and InSAR combined ground surface subsidence automatic monitoring device.

Background

China is a country with multiple geological disasters, so that buildings, roads and other facilities in a large-scale area are possibly damaged by the geological disasters such as landslides, and serious life and property losses are caused. Therefore, how to early warn possible geological disasters in time and ensure the life and property safety of people is a problem which needs to be solved urgently. Therefore, the device for monitoring the settlement displacement in a large range is designed, and the device has a wide application prospect.

With the continuous improvement of the GNSS satellite constellation, the GNSS deformation monitoring technology is more and more mature, and a monitoring method based on the GNSS technology is adopted for settlement monitoring of a plurality of large-scale projects. The method adopts a GNSS precise single-point positioning technology, can accurately measure the coordinates of a monitoring station, obtains settlement data, has the characteristics of high monitoring precision, fewer limiting conditions and the like, is widely applied to deformation monitoring of dams, landslides, foundation pits and the like, can obtain the integral deformation of the earth surface, and effectively solves the problems that a GNSS monitoring reference point is difficult to select and deformation monitoring cannot be carried out by using a differential measurement technology.

In the related art, for example, utility model application No. CN212340227U discloses a high-precision deformation settlement monitoring device based on GNSS, which can realize the measurement result of the posture and settlement of millimeter level. Once the monitoring device enters a working state, the regular calibration is not needed, so that the settlement condition of the railway communication iron tower can be mastered in real time, and potential safety hazards are effectively eliminated.

For another example, the utility model application of publication No. CN111998766A discloses a surface deformation inversion method based on a time sequence InSAR technology, which includes the following steps: geocoding and image registration, generating a differential interference pair, selecting PS points, performing space-time unwrapping and error separation. Specifically, in an image registration mode, coarse registration and fine registration are adopted, so that the registration accuracy requirement in a TOPS imaging mode is ensured; for the atmospheric delay error, processing the layered atmosphere and the floating atmosphere respectively by using different algorithms, so as to weaken the influence of the atmospheric error to the maximum extent and improve the precision of deformation inversion; if the GNSS data are provided, the observation data can be used for correcting the atmospheric delay, and meanwhile, the combined adjustment is carried out by taking the observation data as a constraint condition in an InSAR observation equation, so that the precision and the reliability of a deformation result are ensured.

However, the prior art is still lack of an implementation device on the basis of the combination of GNSS and InSAR technologies.

SUMMERY OF THE UTILITY MODEL

Aiming at the problem that the prior art is lack of an implementation device on the basis of the combination of GNSS and InSAR technologies, the utility model provides an automatic monitoring device for surface subsidence, which combines the GNSS and the InSAR.

The technical scheme of the utility model is as follows.

The utility model provides a ground surface subsidence automatic monitoring devices that GNSS and InSAR combine, connects InSAR server, and monitoring devices includes GNSS module, processing module, communication module and computational unit, the GNSS module includes GNSS receiver antenna and GNSS OEM integrated circuit board, GNSS receiver antenna connection GNSS OEM integrated circuit board, processing module is connected to GNSS OEM integrated circuit board, processing module and InSAR server are connected through communication module to the computational unit, and the monitoring devices bottom is fixed at the ground surface, GNSS module and communication module set up at the monitoring devices top.

The utility model utilizes various modules to build a monitoring device which can obtain GNSS satellite data and InSAR settlement data, and the device can utilize a calculation module to obtain the required settlement data.

Preferably, the communication module comprises a 5G antenna and a 5G module, and the processing module comprises an ARM processor.

Preferably, the communication module comprises a network interface and a gateway, the computing unit and the processing module are connected with the internet through the network interface and the gateway and establish communication connection, the computing unit is connected with the InSAR server through the internet as the preferred, the top of the monitoring device is an ellipsoidal observation upper case, the observation upper case is fixed on the earth surface through an observation pillar, the observation upper case is rotationally connected with the observation pillar, and the rotation direction is parallel to the plane where the earth surface is located at the installation position of the monitoring device. The rotating connection facilitates observation of the upper chassis for adjustment to obtain the appropriate signal or direction.

Preferably, the top of the observation upper chassis is further provided with a protective cover, the GNSS receiver antenna is arranged below the protective cover, and the height of the protective cover is greater than or equal to the ultimate extension length of the GNSS receiver antenna.

Preferably, the computing unit is a local computer or a cloud server. The computing unit is generally separately provided in an indoor area such as a monitoring room.

Preferably, the monitoring device further comprises an angle sensor, the angle sensor is arranged at the bottom of the monitoring device, and the angle sensor is in communication connection with the computing unit.

Preferably, the monitoring system further comprises an alarm which is connected with the computing unit and is arranged in the monitoring room.

In the operation process, the satellite data is acquired through the GNSS receiver antenna and is transmitted to the GNSS OEM board, and the GNSS OEM board converts the received satellite data into an observation file in a standard Rinex format through the ARM processor and transmits the observation file to the computer for processing through the network interface. The 5G antenna and the 5G module transmit the precise ephemeris data to the ARM processor and the computer through a 5G wireless network, and transmit the data of the InSAR server to the computer from the Internet. The computer corrects satellite data in a measurement area range in the observation file according to the precise ephemeris data to obtain precise single-point positioning data; and calculating to obtain the real-time settlement according to the precise single-point positioning data and the InSAR settlement data. And if the settlement is higher than the preset deformation threshold value, alarming.

The beneficial effects of the utility model include: the monitoring device can be used as a device foundation for settlement monitoring, materializes a monitoring means, measures the deformation of a measuring point in real time by means of a precise single-point positioning technology, monitors and analyzes the surface deformation of a monitoring area by using InSAR settlement data, and fuses two kinds of monitoring data to obtain a surface deformation result.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

the drawing comprises the following steps: 1-ARM processor; 2-GNSS antenna; 3-GNSS OEM board card; 41-5G antenna; a 42-5G module; 5-a network interface; 6-a power supply module; 7-a computer; 8-InSAR server.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the utility model. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.

Example (b):

as shown in fig. 1, the automatic monitoring device for surface subsidence combining GNSS and InSAR includes, in addition to the device body, a power module 6, a computer 7 and an InSAR server 8, the monitoring device is fixed on the surface, and the power module is used for providing power. The figure also comprises: the system comprises an ARM processor 1, a GNSS receiver antenna 2, a GNSS OEM board 3, a 5G antenna 41, a 5G module 42 and a network interface 5.

The monitoring device is divided into an ellipsoidal observation upper case and an observation pier, wherein the GNSS receiver antenna 2, the GNSS OEM board 3, the 5G antenna 41 and the 5G module 42 are arranged on the observation upper case. The GNSS OEM board 3 and the 5G module 42 are connected with the ARM processor 1, and the ARM processor 1 is connected with the computer 7 through a network interface 5 arranged inside the observation pier. The InSAR server 8 is connected with the computer 7 in a communication way. The observation upper case is fixed on the earth surface through an observation pillar, the observation upper case is rotationally connected with the observation pillar, and the rotation direction is parallel to the plane of the earth surface at the installation position of the monitoring device. The rotating connection facilitates observation of the upper chassis for adjustment to obtain the appropriate signal or direction.

Wherein, the top of the upper case is also provided with a protective cover, the GNSS receiver antenna 2 is arranged below the protective cover, and the height of the protective cover is more than or equal to the ultimate extension length of the GNSS receiver antenna 2.

The embodiment also comprises an alarm which is connected with the computer and arranged in the monitoring room.

In the embodiment, a monitoring device capable of acquiring GNSS satellite data and InSAR settlement data is built by utilizing various modules, and the device can acquire required settlement data by utilizing a calculation module. In the operation process of the embodiment, satellite data is acquired through a GNSS receiver antenna and is transmitted to a GNSS OEM board, and the GNSS OEM board converts the received satellite data into an observation file in a standard Rinex format through an ARM processor and transmits the observation file to a computer for processing through a network interface. The 5G antenna and the 5G module transmit the precise ephemeris data to the ARM processor and the computer through a 5G wireless network, and transmit the data of the InSAR server to the computer from the Internet. The computer corrects satellite data in a measurement area range in the observation file according to the precise ephemeris data to obtain precise single-point positioning data; and calculating to obtain the real-time settlement according to the precise single-point positioning data and the InSAR settlement data. And if the settlement is higher than the preset deformation threshold value, alarming.

The method can be used as a device foundation for settlement monitoring, materializes a monitoring means, measures the deformation of a measuring point in real time by means of a precise single-point positioning technology, performs surface deformation monitoring analysis on a monitoring area by utilizing InSAR settlement data, and fuses the two monitoring data to obtain a surface deformation result.

In another embodiment, the monitoring device further comprises an angle sensor, wherein the angle sensor is arranged at the bottom of the monitoring device, and the angle sensor is in communication connection with the computer.

Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above described functions.

Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a GNSS and InSAR combined automatic monitoring devices that subsides on earth's surface, connects InSAR server, and monitoring devices includes GNSS module, processing module, communication module and computational unit, its characterized in that, the GNSS module includes GNSS receiver antenna and GNSS OEM integrated circuit board, GNSS receiver antenna connection GNSS OEM integrated circuit board, processing module is connected to GNSS OEM integrated circuit board, the computational unit passes through communication module connection processing module and InSAR server, and the earth's surface is fixed to the monitoring devices bottom, GNSS module and communication module set up at the monitoring devices top.

2. The automatic monitoring device of surface subsidence combining GNSS and InSAR as claimed in claim 1, wherein the communication module comprises a 5G antenna and a 5G module, the processing module comprises an ARM processor.

3. The automatic monitoring device of surface subsidence combining GNSS and InSAR as claimed in claim 1, wherein the communication module comprises a network interface and a gateway, the computing unit and the processing module are connected to the Internet and establish communication connection through the network interface and the gateway, and the computing unit is connected to the InSAR server through the Internet.

4. The automatic monitoring device for surface subsidence combining GNSS and InSAR as claimed in claim 1, wherein the top of the monitoring device is an ellipsoidal observation upper case fixed on the surface of the earth through an observation pillar, the observation upper case is rotatably connected with the observation pillar, and the rotation direction is parallel to the plane of the surface of the earth where the monitoring device is installed.

5. The GNSS and InSAR combined ground surface subsidence automatic monitoring device according to claim 4, wherein a protective cover is further arranged on the top of the observation upper chassis, the GNSS receiver antenna is arranged below the protective cover, and the height of the protective cover is greater than or equal to the ultimate extension length of the GNSS receiver antenna.

6. The GNSS and InSAR combined ground surface subsidence automatic monitoring device of claim 1, wherein the computing unit is a local computer or a cloud server.

7. The GNSS and InSAR combined ground surface subsidence automatic monitoring device of claim 1 or 2, further comprising an angle sensor, wherein the angle sensor is arranged at the bottom of the monitoring device, and the angle sensor is in communication connection with the computing unit.

8. The automatic monitoring device for surface subsidence combining GNSS and InSAR as claimed in claim 1 or 2, further comprising an alarm connected with the computing unit and disposed in the monitoring room.