A GNSS deformation monitoring system and method

Abstract

The present invention relates to a GNSS deformation monitoring system and method, comprising: a base station GNSS receiver for receiving collected original base station observation data; each monitoring station GNSS receiver for receiving collected original monitoring station observation data; a GNSS deformation monitoring platform for respectively solving the original base station observation data with each original monitoring station observation data to obtain deformation displacement data of each monitoring point. The present invention dynamically adjusts the sampling frequency and data transmission interval of the GNSS receiver through the actual deformation amount calculated by the GNSS deformation monitoring platform, and the GNSS receiver retains the data within the time interval and sends it uniformly, reducing the communication time and the working time of the receiver, thereby reducing the power consumption and communication traffic of the GNSS receiver and saving the storage space of the GNSS deformation monitoring platform, greatly saving resources and reducing emissions without affecting the system function and performance.

Description

Technical Field

[0001] The present invention relates to the field of deformation monitoring technology, and in particular to a GNSS deformation monitoring system and method. Background Art

[0002] In the existing GNSS deformation monitoring systems, the GNSS deformation monitoring platform obtains GNSS receiver data for deformation monitoring and solution. The GNSS deformation monitoring platform does not control the sampling frequency and data sending interval of the GNSS receiver according to the actual deformation situation, resulting in a waste of power consumption, communication traffic and storage resources. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a GNSS deformation monitoring system and method.

[0004] The technical solution of a GNSS deformation monitoring system of the present invention is as follows:

[0005] It includes: a GNSS deformation monitoring platform, a base station GNSS receiver and at least one monitoring station GNSS receiver;

[0006] The reference station GNSS receiver is used to: receive and use the GNSS data corresponding to the reference point as the original reference station observation data according to the original reference station acquisition frequency, and send the original reference station observation data to the GNSS deformation monitoring platform according to the original reference station interval duration;

[0007] The GNSS receiver of each monitoring station is used to: receive and use the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the original monitoring station collection frequency corresponding to the GNSS receiver of each monitoring station, and send the original monitoring station observation data to the GNSS deformation monitoring platform according to the original monitoring station interval length corresponding to the GNSS receiver of each monitoring station;

[0008] The GNSS deformation monitoring platform is used to: respectively resolve the original reference station observation data with each original monitoring station observation data to obtain deformation displacement data of each monitoring point, and the reference point and all monitoring points are within the deformation monitoring area.

[0009] The beneficial effects of a GNSS deformation monitoring system of the present invention are as follows:

[0010] The system of the present invention dynamically adjusts the sampling frequency and data transmission interval of the GNSS receiver through the actual deformation amount calculated by the GNSS deformation monitoring platform. The GNSS receiver retains the data within the time interval and sends it uniformly, reducing the communication time and the working time of the receiver, thereby reducing the power consumption and communication traffic of the GNSS receiver and saving the storage space of the GNSS deformation monitoring platform. Without affecting the system function and performance, it greatly saves resources and reduces emissions.

[0011] Based on the above solution, the GNSS deformation monitoring system of the present invention can also be improved as follows.

[0012] Furthermore, the GNSS deformation monitoring platform is also used for:

[0013] Based on the preset deformation displacement database, the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data are matched and obtained, and the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data are sent to the corresponding monitoring station GNSS receiver;

[0014] The GNSS receiver of each monitoring station is used to: collect and use the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the received target monitoring station collection frequency, and send the original monitoring station observation data to the GNSS deformation monitoring platform according to the target monitoring station interval length.

[0015] Furthermore, the GNSS deformation monitoring platform is also used for:

[0016] The minimum target monitoring station interval duration and the maximum target monitoring station acquisition frequency are sent to the base station GNSS receiver, so that the base station GNSS receiver receives and uses the GNSS data corresponding to the reference point as original base station observation data according to the maximum target monitoring station acquisition frequency, and sends the original base station observation data to the GNSS deformation monitoring platform according to the minimum target monitoring station interval duration.

[0017] Further, after the GNSS receiver of each monitoring station sends the original monitoring station observation data to the GNSS deformation monitoring platform according to the target monitoring station interval, the GNSS receiver of each monitoring station is further used to:

[0018] Obtain deformation monitoring data of corresponding monitoring points through sensors;

[0019] When any deformation monitoring data exceeds the deformation threshold, the GNSS data corresponding to the monitoring point is received and used as the original monitoring station observation data according to the original monitoring station GNSS receiver's collection frequency corresponding to any deformation monitoring data, and the original reference station observation data is sent to the GNSS deformation monitoring platform according to the original monitoring station interval duration.

[0020] The beneficial effect of adopting the above further solution is: using the GNSS receiver to monitor satellite data in real time and use it to restore transmission, thereby improving the real-time feedback of deformation monitoring.

[0021] Furthermore, the GNSS deformation monitoring platform is also used for:

[0022] Receiving and sending all original monitoring station observation data and the original reference station observation data to a data buffer queue;

[0023] From the data buffer queue, each original monitoring station observation data within a preset epoch is extracted in turn and solved with the original reference station observation data within the preset epoch to obtain the deformation displacement data of each monitoring point.

[0024] Furthermore, the preset deformation displacement database includes: at least one preset deformation displacement data, each preset deformation displacement data corresponds to a preset monitoring station interval duration and a preset monitoring station collection frequency.

[0025] Further, the matching obtains the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data, specifically including: matching each deformation displacement data with each preset deformation displacement data in the preset deformation displacement database, and using the preset monitoring station interval duration and the preset monitoring station acquisition frequency corresponding to the preset deformation displacement data that successfully matches the deformation displacement data as the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data.

[0026] Furthermore, the calculation process is: according to the difference between the phase value of the reference point and the phase value of each monitoring point, the deformation displacement data of each monitoring point is obtained.

[0027] The technical solution of a GNSS deformation monitoring method of the present invention is as follows:

[0028] The base station GNSS receiver receives and uses the GNSS data corresponding to the base point as the original base station observation data according to the original base station acquisition frequency, and sends the original base station observation data to the GNSS deformation monitoring platform according to the original base station interval duration;

[0029] Each monitoring station GNSS receiver receives and uses the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the original monitoring station collection frequency corresponding to each monitoring station GNSS receiver, and sends the original monitoring station observation data to the GNSS deformation monitoring platform according to the original monitoring station interval length corresponding to each monitoring station GNSS receiver;

[0030] The GNSS deformation monitoring platform respectively resolves the original reference station observation data with each original monitoring station observation data to obtain deformation displacement data of each monitoring point, and the reference point and all monitoring points are within the deformation monitoring area.

[0031] The beneficial effects of a GNSS deformation monitoring method of the present invention are as follows:

[0032] The method of the present invention dynamically adjusts the sampling frequency and data transmission interval of the GNSS receiver through the actual deformation amount calculated by the GNSS deformation monitoring platform. The GNSS receiver retains the data within the time interval and sends it uniformly, reducing the communication time and the working time of the receiver, thereby reducing the power consumption and communication traffic of the GNSS receiver and saving the storage space of the GNSS deformation monitoring platform. Without affecting the system function and performance, it greatly saves resources and reduces emissions.

[0033] Based on the above solution, a GNSS deformation monitoring method of the present invention can also be improved as follows.

[0034] Furthermore, the GNSS deformation monitoring platform matches and obtains the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data based on the preset deformation displacement database, and sends the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data to the corresponding monitoring station GNSS receiver;

[0035] The GNSS receiver of each monitoring station collects and uses the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the received target monitoring station collection frequency, and sends the original monitoring station observation data to the GNSS deformation monitoring platform according to the target monitoring station interval length. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the structure of a GNSS deformation monitoring system according to an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of the structure of a GNSS receiver in a GNSS deformation monitoring system according to an embodiment of the present invention;

[0038] Figure 3A schematic diagram of the structure of a GNSS deformation monitoring platform in a GNSS deformation monitoring system according to an embodiment of the present invention;

[0039] Figure 4 The figure is a flow chart of a GNSS deformation monitoring method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] like Figure 1 As shown, a GNSS deformation monitoring system 100 according to an embodiment of the present invention includes: a GNSS deformation monitoring platform 110 , a reference station GNSS receiver 120 , and at least one monitoring station GNSS receiver 130 .

[0041] A GNSS deformation monitoring system 100 of this embodiment specifically includes: a GNSS deformation monitoring platform 110 , a reference station GNSS receiver 120 and at least one monitoring station GNSS receiver 130 .

[0042] The purpose of constructing the system 100 of this embodiment is to perform calculations based on the observation data collected by a reference point and at least one monitoring point in the deformation monitoring area, so as to dynamically adjust the collection frequency and interval duration of each GNSS receiver according to the calculation results.

[0043] The reference station GNSS receiver 120 is used to: receive and use the GNSS data corresponding to the reference point as the original reference station observation data according to the original reference station acquisition frequency, and send the original reference station observation data to the GNSS deformation monitoring platform 110 according to the original reference station interval duration.

[0044] The original reference station interval duration and the original reference station acquisition frequency are original configuration parameters of the reference station GNSS receiver 110 .

[0045] The reference station GNSS receiver 120 corresponds to a reference point in the deformation monitoring area, and the reference point is fixed and is used to collect observation data of the reference point.

[0046] Specifically, the reference station GNSS receiver 120 controls the reference point to continuously collect observation data according to the original reference station collection frequency, and receives the GNSS data collected by the reference point within the original reference station interval as the original reference station observation data.

[0047] Each monitoring station GNSS receiver 130 is used to: receive and use the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the original monitoring station collection frequency corresponding to each monitoring station GNSS receiver 130, and send the original monitoring station observation data to the GNSS deformation monitoring platform 110 according to the original monitoring station interval duration corresponding to each monitoring station GNSS receiver 130.

[0048] The original configuration parameters of the GNSS receiver 130 of each monitoring station include: the original monitoring station interval duration and the original monitoring station collection frequency.

[0049] Each monitoring station GNSS receiver 130 corresponds to a monitoring point in the deformation monitoring area, and each monitoring point is used to collect observation data of the monitoring point.

[0050] Specifically, each monitoring station GNSS receiver 130 controls the corresponding monitoring point to continuously collect observation data according to the original monitoring station collection frequency of the corresponding monitoring station GNSS receiver 130, and receives the GNSS data collected by the monitoring point within the original monitoring station interval of the corresponding monitoring station GNSS receiver 130 as the original monitoring station observation data of the monitoring station GNSS receiver 130.

[0051] The GNSS deformation monitoring platform 110 is used to respectively resolve the original reference station observation data with each original monitoring station observation data to obtain deformation displacement data of each monitoring point, wherein the reference point and all monitoring points are within the deformation monitoring area.

[0052] The function of the GNSS deformation monitoring platform 110 is to solve the received reference station observation data and monitoring station observation data, and obtain deformation displacement data according to the solution results.

[0053] It should be noted that the process of solving the observation data of the reference station and the observation data of the monitoring station is a conventional technical means in this field and will not be elaborated here.

[0054] Specifically, the GNSS deformation monitoring platform 110 will continuously receive the observation data sent by each GNSS receiver according to the interval time configured by each GNSS receiver (at this time, the original reference station observation data and the original monitoring station observation data, and the GNSS deformation monitoring platform 110 must first receive the original reference station observation data, or the GNSS deformation monitoring platform 110 simultaneously receives the original reference station observation data and the original monitoring station observation data sent by any monitoring station GNSS receiver). The GNSS deformation monitoring platform 110 will solve the original reference station observation data with each original monitoring station observation data respectively, so as to obtain each deformation displacement data.

[0055] Preferably, the GNSS deformation monitoring platform 110 is also used for:

[0056] Based on the preset deformation displacement database, the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data are matched and obtained, and the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data are sent to the corresponding monitoring station GNSS receiver 130;

[0057] Each monitoring station GNSS receiver 130 is used to collect and use the GNSS data corresponding to the monitoring point as original monitoring station observation data according to the received target monitoring station collection frequency, and send the original monitoring station observation data to the GNSS deformation monitoring platform 110 according to the target monitoring station interval.

[0058] The target monitoring station interval duration is the adjusted data transmission interval duration of the corresponding monitoring station GNSS receiver 130 , and the target monitoring station collection frequency is the adjusted data collection frequency of the corresponding monitoring station GNSS receiver 130 .

[0059] A preset deformation displacement database is stored in the GNSS deformation monitoring platform 110 , and each deformation displacement data can be matched with a corresponding target monitoring station interval duration and a target monitoring station acquisition frequency in the preset deformation displacement database.

[0060] It should be noted that each preset deformation displacement data includes: preset monitoring station interval duration and preset monitoring station acquisition frequency. At this time, the preset monitoring station interval duration and preset monitoring station acquisition frequency that are successfully matched are respectively used as the target monitoring station interval duration and target monitoring station acquisition frequency corresponding to the deformation displacement data.

[0061] Among them, each monitoring station GNSS receiver 130 will adjust to the corresponding monitoring station observation data collection frequency and data sending interval duration according to the control instructions sent by the GNSS deformation monitoring platform 110 (the control instructions include: the target monitoring station interval duration and target monitoring station collection frequency corresponding to the monitoring station GNSS receiver 130).

[0062] Preferably, the GNSS deformation monitoring platform 110 is also used for:

[0063] The minimum target monitoring station interval duration and the maximum target monitoring station acquisition frequency are sent to the base station GNSS receiver 120, so that the base station GNSS receiver 120 receives and uses the GNSS data corresponding to the base point as the original base station observation data according to the maximum target monitoring station acquisition frequency, and sends the original base station observation data to the GNSS deformation monitoring platform 110 according to the minimum target monitoring station interval duration.

[0064] Specifically, when all deformation displacement data are matched to the corresponding target monitoring station interval duration and target monitoring station collection frequency, at this time, in order to ensure that the base station GNSS receiver 120 always transmits observation data to the GNSS deformation monitoring platform 110 at the earliest, the GNSS deformation monitoring platform 110 will determine the minimum target monitoring station interval duration as the target base station interval duration among all target monitoring station interval durations; and determine the maximum target monitoring station collection frequency as the target base station collection frequency among all target monitoring station collection frequencies.

[0065] Among them, the base station GNSS receiver 120 will adjust to the corresponding base station observation data collection frequency and data sending interval duration according to the control instructions sent by the GNSS deformation monitoring platform 110 (the control instructions include: the target base station interval duration and target base station collection frequency corresponding to the base station GNSS receiver 120).

[0066] It should be noted that the GNSS receiver (monitoring station GNSS receiver 130 or base station GNSS receiver 120) includes: a satellite receiving module, a wireless communication module, a data storage module and a central processing unit. Figure 2 As shown, the satellite receiving module receives and sends the original reference station (monitoring station) observation data collected by the reference point (monitoring point) in the deformation monitoring area within the original reference station (monitoring station) interval to the central processor; the central processor stores the received data in the data storage module, and the central processor obtains the control command sent by the GNSS deformation monitoring platform 110 from the wireless communication module (the control instruction includes: the target reference station (monitoring station) interval duration and the target reference station (monitoring station) acquisition frequency corresponding to the GNSS receiver).

[0067] Specifically, the central processing unit adjusts the original acquisition frequency f to f1 and the original sending interval duration t to t1 according to the control command, and the central processing unit starts the internal timer. When the internal timer reaches t1 in time, the collected observation data within the t1 period is read from the data storage module, and the wireless communication module is started to send the satellite data within the t1 period to the GNSS deformation monitoring platform 110 through the wireless communication module. After the data is sent, the wireless communication module is turned off to reduce power consumption.

[0068] Preferably, after the GNSS receiver 130 at each monitoring station sends the original monitoring station observation data to the GNSS deformation monitoring platform 110 according to the target monitoring station interval, the GNSS receiver 130 at each monitoring station is further used for:

[0069] Obtain deformation monitoring data of corresponding monitoring points through sensors;

[0070] When any deformation monitoring data exceeds the deformation threshold, the GNSS data corresponding to the monitoring point is received and used as the original monitoring station observation data according to the original monitoring station collection frequency of the monitoring station GNSS receiver 130 corresponding to any deformation monitoring data, and the original base station observation data is sent to the GNSS deformation monitoring platform 110 according to the original monitoring station interval duration.

[0071] Among them, the types of sensors are: inclinometer, crack meter, etc. The deformation monitoring data refers to the displacement and crack change data (local inclination crack data) of the monitoring point obtained by the inclinometer and crack meter. The deformation threshold can be set by the user according to the actual situation.

[0072] Specifically, each monitoring station GNSS receiver 130 also includes: a sensing module. The sensing module uses the sensor in each monitoring station GNSS receiver 130 to obtain the deformation monitoring data of the corresponding monitoring point. When the deformation monitoring data of any monitoring station GNSS receiver 130 exceeds the deformation threshold, the monitoring station GNSS receiver 130 will urgently restore the original collection frequency and the original sending interval duration (for example, from f1 to f, from t1 to t).

[0073] It should be noted that the data obtained by the sensor in the monitoring station GNSS receiver 130 is local and rough; while the data obtained by the GNSS deformation monitoring platform 110 is accurate; when there is a conflict between the two, the target data sampling frequency and the target data sending interval generated by the GNSS deformation monitoring platform 110 through calculation shall prevail.

[0074] It should also be noted that when the target monitoring station collection frequency or the target monitoring station interval duration of any monitoring station GNSS receiver changes, the GNSS deformation monitoring platform 110 will redetermine the target reference station interval duration and the target reference station collection frequency of the base station GNSS receiver 120 based on the target monitoring station collection frequency and the target monitoring station interval duration at this time, so as to ensure that the base station GNSS receiver 120 is always the first to transmit observation data to the GNSS deformation monitoring platform 110.

[0075] Preferably, the GNSS deformation monitoring platform 110 is also used for:

[0076] Receiving and sending all original monitoring station observation data and the original reference station observation data to a data buffer queue;

[0077] From the data buffer queue, each original monitoring station observation data within a preset epoch is extracted in turn and solved with the original reference station observation data within the preset epoch to obtain the deformation displacement data of each monitoring point.

[0078] In order to better explain the functions of the GNSS deformation monitoring platform 110, the GNSS deformation monitoring platform 110 can be divided into: a data transceiver module 111, a data processing module 112, a data matching module 113 and a receiver synchronization module 114;

[0079] The data transceiver module 111 is used to receive and send all original monitoring station observation data and the original reference station observation data to a data buffer queue.

[0080] The data processing module 112 is used to extract the original monitoring station observation data in the preset epoch from the data buffer queue in sequence and perform calculations with the original reference station observation data in the preset epoch to obtain the deformation displacement data of each monitoring point.

[0081] The data matching module 113 is used to match and obtain the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data based on the preset deformation displacement database.

[0082] The receiver synchronization module 114 is used to: determine the minimum target monitoring station interval duration as the target reference station interval duration among all target monitoring station interval durations; and determine the maximum target monitoring station acquisition frequency as the target reference station acquisition frequency among all target monitoring station acquisition frequencies.

[0083] The data transceiver module 111 is also used to: send the target reference station acquisition frequency and the target reference station interval duration to the reference station GNSS receiver 120, so that the reference station GNSS receiver 120 receives and uses the GNSS data corresponding to the reference point as original reference station observation data according to the target reference station acquisition frequency, and sends the original reference station observation data to the GNSS deformation monitoring platform 110 according to the target reference station interval duration.

[0084] The data transceiver module 111 is also used to send the target monitoring station interval duration and the target monitoring station collection frequency corresponding to each monitoring station GNSS receiver 130 to each monitoring station GNSS receiver, so that each monitoring station GNSS receiver 130 collects and uses the GNSS data corresponding to the monitoring point as original monitoring station observation data according to the received target monitoring station collection frequency, and sends the original monitoring station observation data to the GNSS deformation monitoring platform 110 according to the target monitoring station interval duration.

[0085] Specifically, Figure 3 As shown, the data transceiver module 111 obtains data from the reference station GNSS receiver 120 and each monitoring station GNSS receiver 130 and sends it to the data buffer queue. When the amount of monitoring station observation data in the buffer queue exceeds one epoch (preset epoch), the data processing module 112 respectively takes out the monitoring station observation data of each original monitoring station observation data in one epoch (target monitoring station observation data) and the reference station observation data of the corresponding epoch (target reference station observation data) from the buffer queue for solution; a relationship list corresponding to multiple preset deformation displacement data and preset monitoring station interval duration and preset monitoring station acquisition frequency has been configured in the data matching module 113 in advance; the data matching module 113 matches each acquired deformation displacement data with the configured preset deformation displacement database, obtains the corresponding target monitoring station interval duration and the target monitoring station acquisition frequency, and sends it to the corresponding receiver through the data transceiver module 111.

[0086] It should be noted that the data cache queue is a first-in-first-out data cache queue. When the collection frequency and interval length are adjusted, the data solution process and results are not affected.

[0087] Preferably, the preset deformation displacement database includes: at least one preset deformation displacement data, each preset deformation displacement data corresponds to a preset monitoring station interval duration and a preset monitoring station collection frequency.

[0088] A deformation displacement database is preset in the data matching module 113 , and a plurality of preset deformation displacement data are configured in the database, and each preset deformation displacement data corresponds to a preset monitoring station interval duration and a preset monitoring station collection frequency.

[0089] Preferably, the matching obtains the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data, specifically comprising: matching each deformation displacement data with each preset deformation displacement data in the preset deformation displacement database, and using the preset monitoring station interval duration and the preset monitoring station acquisition frequency corresponding to the preset deformation displacement data that successfully matches the deformation displacement data as the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data.

[0090] Specifically, for example, at this time, the preset deformation displacement database is configured with three preset deformation displacement data (A, B, C), wherein the preset deformation displacement data A corresponds to a preset monitoring station interval time length t 10 and a preset monitoring station acquisition frequency f 10 , the preset deformation displacement data B corresponds to the preset monitoring station interval time t 20 and a preset monitoring station acquisition frequency f 20 , the preset satellite deformation displacement data C corresponds to the preset monitoring station interval time t 30 and a preset monitoring station acquisition frequency f 30 ; If the deformation displacement data is C at this time, then the preset monitoring station interval length t corresponding to the preset deformation displacement data C is set 30 As the target monitoring station interval length, the preset monitoring station collection frequency f corresponding to the preset deformation displacement data C is set 30 As the target monitoring station, collect the frequency.

[0091] Preferably, the calculation process is: obtaining the deformation displacement data of each monitoring point according to the difference between the phase value of the reference point and the phase value of each monitoring point.

[0092] In order to better illustrate the content of the present invention, the cases of 1 to 3 monitoring station GNSS receivers 130 are used as examples.

[0093] When the number of the monitoring station GNSS receiver 130 is 1, the original acquisition frequency and the original interval duration of the reference station GNSS receiver 120 and the monitoring station GNSS receiver 130 are the same. That is, the original reference station acquisition frequency is the same as the original monitoring station acquisition frequency, and the original reference station interval duration is the same as the original monitoring station interval duration.

[0094] At this time, the GNSS deformation monitoring platform 110 solves the received original reference station observation data and the original monitoring station observation data to obtain the deformation displacement data of the monitoring point; and matches the target monitoring station interval duration and the target monitoring station acquisition frequency in the preset deformation displacement database according to the deformation displacement data. Since there is only one monitoring station GNSS receiver 130 at this time, the target monitoring station interval duration is also the target reference station interval duration, and the target monitoring station acquisition frequency is also the target reference station acquisition frequency. The acquisition frequency and interval duration of the reference station GNSS receiver 120 and the monitoring station GNSS receiver 130 are always synchronized.

[0095] When the number of the monitoring station GNSS receivers 130 is 2, the monitoring station GNSS receivers 130 are: a first monitoring station GNSS receiver 131 and a second monitoring station GNSS receiver 132. At this time, the original reference station acquisition frequency of the reference station GNSS receiver 120 is f 10 , the original reference station interval is t 10 , the original monitoring station acquisition frequency of the first monitoring station GNSS receiver 131 is f 20 , the original monitoring station interval is t 20 , the original monitoring station acquisition frequency of the second monitoring station GNSS receiver 132 is f 30 , the original monitoring station interval is t 30 .

[0096] At this time, the GNSS deformation monitoring platform 110 solves the received original base station observation data with the two original monitoring station observation data to obtain the deformation displacement data of the two monitoring points; and matches each deformation displacement data in the preset deformation displacement database to obtain the corresponding target monitoring station interval duration and target monitoring station acquisition frequency.

[0097] For example, at this time, the target monitoring station interval duration and the target monitoring station acquisition frequency of the first monitoring station GNSS receiver 131 are: 21 and f 21 The target monitoring station interval duration and the target monitoring station acquisition frequency of the second monitoring station GNSS receiver 132 are: t 31 and f 31 ; At this time, it is necessary to judge t 21 With t 31 The relatively smaller of the two is determined as the target reference station interval duration of the reference station GNSS receiver 120; and f is determined. 21 With f 31 The relatively larger of the two is determined as the target reference station acquisition frequency of the reference station GNSS receiver 120.

[0098] When the number of the monitoring station GNSS receivers 130 is three, the monitoring station GNSS receivers 130 are: a first monitoring station GNSS receiver 131, a second monitoring station GNSS receiver 132, and a third monitoring station GNSS receiver 133. At this time, the original reference station acquisition frequency of the reference station GNSS receiver 120 is f 10 , the original reference station interval is t 10 , the original monitoring station acquisition frequency of the first monitoring station GNSS receiver 131 is f 20 , the original monitoring station interval is t 20 The original monitoring station acquisition frequency of the second monitoring station GNSS receiver 132 is f 30 , the original monitoring station interval is t 30 The original monitoring station acquisition frequency of the third monitoring station GNSS receiver 133 is f 40 , the original monitoring station interval is t 40 .

[0099] At this time, the GNSS deformation monitoring platform 110 will respectively solve the received original base station observation data with the three original monitoring station observation data to obtain the deformation displacement data of the three monitoring points; according to each deformation displacement data, the corresponding target monitoring station interval duration and target monitoring station acquisition frequency are matched in the preset deformation displacement database.

[0100] For example, at this time, the target monitoring station interval duration and the target monitoring station acquisition frequency of the first monitoring station GNSS receiver 131 are: 21 and f 21 The target monitoring station interval duration and the target monitoring station acquisition frequency of the second monitoring station GNSS receiver 132 are: t 31 and f 31 The target monitoring station interval duration and the target monitoring station acquisition frequency of the third monitoring station GNSS receiver 133 are: t 41 and f 41 ; At this time, it is necessary to judge t 21 ,t 31 ,t 41 The smallest acquisition frequency among the three is determined as the interval time between the base station GNSS receiver 120 and the target base station; determine f 21 、f 31 、f 41 The maximum interval duration among the three is determined as the target base station acquisition frequency of the base station GNSS receiver 120.

[0101] The technical solution of this embodiment dynamically adjusts the sampling frequency and data sending interval of the GNSS receiver through the actual deformation amount calculated by the GNSS deformation monitoring platform. The GNSS receiver retains the data within the time interval and sends it uniformly, reducing the communication time and the working time of the receiver, thereby reducing the power consumption and communication traffic of the GNSS receiver and saving the storage space of the GNSS deformation monitoring platform. Without affecting the system function and performance, it greatly saves resources and reduces emissions.

[0102] like Figure 4 As shown, a GNSS deformation monitoring method according to an embodiment of the present invention includes:

[0103] S1. The GNSS receiver of the reference station receives and uses the GNSS data corresponding to the reference point as the original reference station observation data according to the original reference station acquisition frequency, and sends the original reference station observation data to the GNSS deformation monitoring platform according to the original reference station interval duration;

[0104] S2. Each monitoring station GNSS receiver receives and uses the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the original monitoring station collection frequency corresponding to the GNSS receiver of each monitoring station, and sends the original monitoring station observation data to the GNSS deformation monitoring platform according to the original monitoring station interval length corresponding to the GNSS receiver of each monitoring station;

[0105] S3. The GNSS deformation monitoring platform respectively resolves the original reference station observation data with the observation data of each original monitoring station to obtain deformation displacement data of each monitoring point. The reference point and all monitoring points are within the deformation monitoring area.

[0106] Preferably, the GNSS deformation monitoring platform matches and obtains the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data based on a preset deformation displacement database, and sends the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data to the corresponding monitoring station GNSS receiver.

[0107] The GNSS receiver of each monitoring station collects and uses the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the received target monitoring station collection frequency, and sends the original monitoring station observation data to the GNSS deformation monitoring platform according to the target monitoring station interval length.

[0108] The technical solution of this embodiment dynamically adjusts the sampling frequency and data sending interval of the GNSS receiver through the actual deformation amount calculated by the GNSS deformation monitoring platform. The GNSS receiver retains the data within the time interval and sends it uniformly, reducing the communication time and the working time of the receiver, thereby reducing the power consumption and communication traffic of the GNSS receiver and saving the storage space of the GNSS deformation monitoring platform. Without affecting the system function and performance, it greatly saves resources and reduces emissions.

[0109] The parameters and steps in the above-mentioned GNSS deformation monitoring method of this embodiment can refer to the parameters and steps of each module implementing corresponding functions in the above-mentioned embodiment of a GNSS deformation monitoring system, and will not be repeated here.

[0110] The algorithms or displays provided herein are not inherently related to any particular computer, virtual system or other device. In addition, the embodiments of the present invention are not directed to any particular programming language.

[0111] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Wherein, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself is a separate embodiment of the present invention.

[0112] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be understood as limitations on the order of execution.

Claims

1. A GNSS deformation monitoring system, characterized in that: include: GNSS deformation monitoring platform, base station GNSS receiver and at least one monitoring station GNSS receiver; The reference station GNSS receiver is used to: receive and use the GNSS data corresponding to the reference point as the original reference station observation data according to the original reference station acquisition frequency, and send the original reference station observation data to the GNSS deformation monitoring platform according to the original reference station interval duration; The GNSS receiver of each monitoring station is used to: receive and use the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the original monitoring station collection frequency corresponding to the GNSS receiver of each monitoring station, and send the original monitoring station observation data to the GNSS deformation monitoring platform according to the original monitoring station interval length corresponding to the GNSS receiver of each monitoring station; The GNSS deformation monitoring platform is used to: respectively resolve the original reference station observation data with each original monitoring station observation data to obtain deformation displacement data of each monitoring point, and the reference point and all monitoring points are within the deformation monitoring area.

2. The GNSS deformation monitoring system according to claim 1, characterized in that: The GNSS deformation monitoring platform is also used for: Based on the preset deformation displacement database, the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data are matched and obtained, and the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data are sent to the corresponding monitoring station GNSS receiver; The GNSS receiver of each monitoring station is used to: collect and use the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the received target monitoring station collection frequency, and send the original monitoring station observation data to the GNSS deformation monitoring platform according to the target monitoring station interval length.

3. The GNSS deformation monitoring system according to claim 2, characterized in that: The GNSS deformation monitoring platform is also used for: The minimum target monitoring station interval duration and the maximum target monitoring station acquisition frequency are sent to the base station GNSS receiver, so that the base station GNSS receiver receives and uses the GNSS data corresponding to the reference point as original base station observation data according to the maximum target monitoring station acquisition frequency, and sends the original base station observation data to the GNSS deformation monitoring platform according to the minimum target monitoring station interval duration.

4. The GNSS deformation monitoring system according to claim 3, characterized in that: After the GNSS receiver of each monitoring station sends the original monitoring station observation data to the GNSS deformation monitoring platform according to the target monitoring station interval, the GNSS receiver of each monitoring station is further used to: Obtain deformation monitoring data of corresponding monitoring points through sensors; When any deformation monitoring data exceeds the deformation threshold, the GNSS data corresponding to the monitoring point is received and used as the original monitoring station observation data according to the original monitoring station GNSS receiver's collection frequency corresponding to any deformation monitoring data, and the original reference station observation data is sent to the GNSS deformation monitoring platform according to the original monitoring station interval duration.

5. The GNSS deformation monitoring system according to claim 3 or 4, characterized in that: The GNSS deformation monitoring platform is also used for: Receiving and sending all original monitoring station observation data and the original reference station observation data to a data buffer queue; From the data buffer queue, each original monitoring station observation data within a preset epoch is extracted in turn and solved with the original reference station observation data within the preset epoch to obtain the deformation displacement data of each monitoring point.

6. The GNSS deformation monitoring system according to claim 2, characterized in that: The preset deformation displacement database includes: at least one preset deformation displacement data, each preset deformation displacement data corresponds to a preset monitoring station interval time and a preset monitoring station collection frequency.

7. The GNSS deformation monitoring system according to claim 6, characterized in that: The matching obtains the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data, specifically comprising: matching each deformation displacement data with each preset deformation displacement data in the preset deformation displacement database, and using the preset monitoring station interval duration and the preset monitoring station acquisition frequency corresponding to the preset deformation displacement data that successfully matches the deformation displacement data as the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data.

8. The GNSS deformation monitoring system according to claim 1, characterized in that: The calculation process is: according to the difference between the phase value of the reference point and the phase value of each monitoring point, the deformation displacement data of each monitoring point is obtained.

9. A GNSS deformation monitoring method, characterized in that: include: The base station GNSS receiver receives and uses the GNSS data corresponding to the base point as the original base station observation data according to the original base station acquisition frequency, and sends the original base station observation data to the GNSS deformation monitoring platform according to the original base station interval duration; Each monitoring station GNSS receiver receives and uses the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the original monitoring station collection frequency corresponding to each monitoring station GNSS receiver, and sends the original monitoring station observation data to the GNSS deformation monitoring platform according to the original monitoring station interval length corresponding to each monitoring station GNSS receiver; The GNSS deformation monitoring platform respectively resolves the original reference station observation data with each original monitoring station observation data to obtain deformation displacement data of each monitoring point, and the reference point and all monitoring points are within the deformation monitoring area.

10. The GNSS deformation monitoring method according to claim 9, characterized in that: The GNSS deformation monitoring platform matches and obtains the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data based on the preset deformation displacement database, and sends the target monitoring station interval duration and the target monitoring station acquisition frequency corresponding to each deformation displacement data to the corresponding monitoring station GNSS receiver; The GNSS receiver of each monitoring station collects and uses the GNSS data corresponding to the monitoring point as the original monitoring station observation data according to the received target monitoring station collection frequency, and sends the original monitoring station observation data to the GNSS deformation monitoring platform according to the target monitoring station interval length.

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