CN113108681A - Beidou-based power infrastructure construction geological environment monitoring method and system - Google Patents
Beidou-based power infrastructure construction geological environment monitoring method and system Download PDFInfo
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Abstract
The invention provides a Beidou-based power infrastructure construction geological environment monitoring method and system, wherein the method comprises the steps of obtaining real-time position information of datum points and monitoring points distributed in a power infrastructure construction geological environment; calculating the relative position of the monitoring point; calculating real-time offset variation or accumulated variation of the monitoring points by using the previous relative position and the current relative position of the monitoring points according to the sampling interval; and comparing the obtained real-time offset variable quantity or the accumulated variable quantity with a preset threshold value, and if the obtained real-time offset variable quantity or the accumulated variable quantity exceeds the threshold value, alarming according to a predefined alarm level. The efficiency and the benefit of the site construction of the power infrastructure are improved, and the intelligent, intensive and lean scientific management of the power grid infrastructure work is also improved.
Description
Technical Field
The invention relates to the technical field of electric power infrastructure monitoring, in particular to a Beidou-based electric power infrastructure construction geological environment monitoring method and system.
Background
In recent years, in the aspect of geological environment monitoring of electric power infrastructure construction sites, breakthroughs are made in the aspects of personnel and equipment management, business application development, high and new technology iteration and the like. But still has the problems that the monitoring means of the construction site in partial areas is backward, the transmission of site data is not smooth, the feedback of site dangerous conditions is not timely, and the like. At present, most of geological disasters such as landslide, geological hidden dangers, groundwater environment changes and the like in electric power infrastructure construction and peripheral areas are monitored manually, prevention is carried out depending on experience of personnel, a coping method of a scientific system is lacked, timely early warning and real-time supervision on sudden accidents cannot be achieved, too much manpower and material resources and fund waste are caused when the disasters in the electric power infrastructure construction field are too high in estimation, the best prevention opportunity is probably lost when the disasters are not enough in estimation, the disasters are aggravated, and the accidents are seriously caused.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a Beidou-based power infrastructure construction geological environment monitoring method and system, which can be used for monitoring the surrounding geological disaster hidden danger areas of a power infrastructure site with high efficiency and high precision, and the precision can reach the real-time dynamic centimeter level and the static post-processing millimeter level. The efficiency and the benefit of the site construction of the power infrastructure are improved, and the intelligent, intensive and lean scientific management of the power grid infrastructure work is also improved.
The invention provides a Beidou-based power infrastructure construction geological environment monitoring method, which comprises the following steps of: acquiring real-time position information of a reference point and a monitoring point distributed in the power infrastructure construction geological environment; calculating the relative position of the monitoring point according to the acquired real-time position information of the reference point and the monitoring point; calculating real-time offset variation or accumulated variation of the monitoring points by using the previous relative position and the current relative position of the monitoring points according to the sampling interval; and comparing the obtained real-time offset variable quantity or the accumulated variable quantity with a preset threshold value, and if the obtained real-time offset variable quantity or the accumulated variable quantity exceeds the threshold value, alarming according to a predefined alarm level.
The monitoring method provided by the embodiment of the invention judges whether the monitoring station meets the monitoring requirements of real-time dynamic centimeter-level and static post-processing millimeter-level according to the precision of the reference point of the reference station. And meanwhile, the monitoring data are processed and analyzed, and the displacement and settlement values of the power infrastructure monitoring environment are calculated. If the displacement value and the settlement value exceed the limit requirement, determining the coordinates of the monitoring point and issuing a site emergency instruction; and if the displacement value and the settlement value do not exceed the limit requirements, predicting the displacement, settlement change real-time curve and situation of the monitoring point. The monitoring method can be used for carrying out all-weather, all-day and automatic monitoring on the geological environment of the power infrastructure site, discovering potential safety hazards in time and carrying out early warning, and effectively reducing the labor cost.
Preferably, the real-time position information of the reference point and the monitoring point is obtained by resolving through a reference station and a monitoring station according to the received satellite signals respectively; the real-time position information comprises three-dimensional space coordinates of the reference point and the monitoring point and time for acquiring the current coordinate.
In any of the above embodiments, preferably, the relative position of the monitoring point is calculated by using an RTK relative positioning principle according to the acquired real-time position information of the reference point and the monitoring point.
In the monitoring method provided by the embodiment, when the relative position is calculated, filtering and denoising processing is performed on the original observed quantity received by the monitoring station so as to weaken various random errors in the Beidou real-time observation and dynamic calculation processes, abnormal gross errors are eliminated, and the positioning result is closer to the true value by using an RTK static post-processing technology.
In any of the above embodiments, preferably, the fiducial points are laid according to the following laying rule: if the existing Beidou foundation enhancement system exists, a selection or access mode can be adopted as a reference point source; if the existing Beidou foundation enhancement system does not exist, the Beidou foundation enhancement system or the temporary reference station is set up as a reference point source according to the length of the required monitoring time.
Further preferably, the method further comprises generating a change curve according to the obtained real-time offset change or the accumulated change, and performing situation prediction and early warning. The real-time deviation variable quantity or the accumulated variable quantity provided by the embodiment can effectively monitor the geological environment change of the electric power infrastructure site, and can perform early warning and prediction on the stability change trend of the geological environment change.
The invention also provides a Beidou-based power infrastructure construction geological environment monitoring system, which comprises the following components: the system comprises a monitoring station, a reference station and a monitoring center server;
the monitoring station and the reference station are used for receiving Beidou satellite signals in real time; converting the received Beidou satellite signals into real-time position information of monitoring points and reference points;
the monitoring center server comprises a position information acquisition module used for acquiring the real-time position information of the reference point and the monitoring point;
the data processing module is used for calculating the relative position of the monitoring point according to the acquired reference point and the real-time position information of the monitoring point;
the variable quantity calculating module is used for calculating the real-time offset variable quantity or the accumulated variable quantity of the monitoring point by utilizing the previous relative position and the current relative position of the monitoring point according to the sampling interval;
and the alarm module is used for comparing the acquired real-time offset variation or the accumulated variation with a preset threshold value, and alarming according to a predefined alarm level if the acquired real-time offset variation or the accumulated variation exceeds the threshold value.
The monitoring system provided by the embodiment of the invention judges whether the monitoring station meets the monitoring requirements of real-time dynamic centimeter-level and static post-processing millimeter-level according to the precision of the reference point of the reference station. And meanwhile, the monitoring data are processed and analyzed, and the displacement and settlement values of the power infrastructure monitoring environment are calculated. If the displacement value and the settlement value exceed the limit requirement, determining the coordinates of the monitoring point and issuing a site emergency instruction; and if the displacement value and the settlement value do not exceed the limit requirements, predicting the displacement, settlement change real-time curve and situation of the monitoring point. The monitoring method can be used for carrying out all-weather, all-day and automatic monitoring on the geological environment of the power infrastructure site, discovering potential safety hazards in time and carrying out early warning, and effectively reducing the labor cost.
Preferably, the monitoring center server further includes a situation prediction module, and the situation prediction module is configured to generate a change curve according to the acquired real-time offset variation or accumulated variation, and perform situation prediction and early warning. The real-time deviation variable quantity or the accumulated variable quantity provided by the embodiment can effectively monitor the geological environment change of the electric power infrastructure site, pre-warn and predict the stability change trend of the geological environment change site, and display the displacement of the monitoring point, the sedimentation change real-time curve, the situation prediction and the like in real time.
In any of the above embodiments, preferably, the reference station is a beidou foundation enhancement system and/or a temporary reference station arranged in an electric power infrastructure construction geological environment.
Preferably, in any one of the above embodiments, the beidou foundation enhancement system includes a plurality of observation piers, a beidou high-precision receiver and a GNSS antenna; the Beidou high-precision receiver is erected on the observation pier and connected with the GNSS antenna.
Preferably in any one of the above embodiments, the temporary reference station includes a GNSS antenna, a horizontal base, a solar panel, a beidou high-precision receiver, and a storage battery; the GNSS antenna is arranged on the horizontal base, a solar cell panel is installed below the horizontal base, and the solar cell panel, the storage battery and the Beidou high-precision receiver are sequentially connected.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flow chart of a Beidou-based electric power infrastructure construction geological environment monitoring method provided by the embodiment of the invention;
fig. 2 is an architecture diagram of a Beidou-based electric power infrastructure construction geological environment monitoring system provided by the embodiment of the invention;
fig. 3 is a diagram illustrating a temporary reference station according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
The power infrastructure geological environment monitoring mainly focuses on changes of ground displacement and elevation, and can be used for monitoring according to changes of the ground elevation to obtain horizontal and vertical displacement components. At present, the Beidou satellite navigation system in China has served globally in 2020. The system is a hybrid global satellite navigation system consisting of three satellites positioned at different orbital heights, can provide all-weather uninterrupted high-precision positioning, time service and other services, and supports continuous data acquisition under severe weather conditions. The Beidou high-precision receiver can realize automatic acquisition of field monitoring data, is low in artificial participation degree, can effectively eliminate work delay caused by factors such as weather, climate and personnel, and effectively avoids human errors. The Beidou satellite navigation system has the greatest characteristic that the positioning navigation and the short message communication function are closely combined, when a ground public network communication signal is weak or interrupted, the Beidou short message communication function can break through a busy communication point, emergency communication is realized, and the continuity of geological environment monitoring service of a power infrastructure construction site can be ensured.
In order to enhance the construction of the dynamic monitoring capability of the engineering site, the method utilizes a Global Navigation Satellite System (GNSS) based on the compatibility of a Beidou satellite navigation system (hereinafter referred to as a Beidou system) with GPS, Glonass (GLONASS), Galileo (Galileo) and other global navigation satellite systems, and combines a Beidou foundation enhancement system and an RTK (Real-time kinematic, carrier phase difference) technology, thereby enhancing the geological environment monitoring of the construction site and improving the sensing capability of the environment, the position and the state. The Global Navigation Satellite System (GNSS) has the functions of all weather, all-time, continuous positioning and the like, has incomparable applicability compared with the traditional capital construction geological environment observation technology, and has important significance for monitoring the geological environment state of the electric power capital construction site.
Global satellite navigation system: global Navigation Satellite System (GNSS) is a generic term for Satellite Navigation systems that can provide Navigation services worldwide.
Global positioning system: global Positioning System (GPS) the global satellite navigation system developed and managed by the united states. Real-time three-dimensional position, velocity and time information is provided for global users, including services such as the Precision Positioning Service (PPS) and the Standard Positioning Service (SPS).
Beidou satellite navigation system: the BeiDou navigation satellite system (BDS) is a global satellite navigation system developed by china, and is also the third mature satellite navigation system after GPS and GLONASS. The method provides real-time three-dimensional position, speed and time information for a user, and comprises five functions of real-time navigation, quick positioning, accurate time service, position report and short message communication service.
Glonass satellite navigation system: global navigation satellite system (GLONASS) the global satellite navigation system constructed and managed by russia was developed. And providing real-time three-dimensional position, speed and time information for global users, including services such as a standard precision Channel (CSA) and a high precision Channel (CHA).
Galileo satellite navigation system: GALILEO navigation satellite system (GALILEO) the global satellite navigation system developed and managed by the European Union. And real-time three-dimensional position, speed and time information is provided for global users, and services such as opening, business, life safety, public authorization and search and rescue support are included.
Big dipper ground reinforcing system: big dipper ground reinforcing system is one set and can makes big dipper positioning accuracy reach centimeter level's system, possesses the ability that provides the real-time meter level of wide area, decimeter level, centimeter level and postprocessing millimeter level positioning accuracy for the user.
RTK: the Real-time kinematic carrier phase differential technology is a differential method for processing the carrier phase observed quantity of two measuring stations in Real time.
A reference station: the satellite navigation signal is continuously observed for a long time, and the communication facilities transmit the observed data to the ground fixed observation station of the data center in real time or at regular time.
Beidou short message communication: the Beidou satellite navigation system is based on a two-way message communication service provided by a radio determination service (RDSS).
The embodiment of the invention provides a Beidou-based power infrastructure construction geological environment monitoring method, which specifically comprises the following steps:
firstly, a geological environment monitoring reference point of a power infrastructure construction site needs to be determined.
When the datum point is selected, the following 3 modes are included
Mode 1, the mode of selecting for use or switching in can be adopted as the benchmark source under the circumstances that there is big dipper ground reinforcing system around the electric power capital construction scene.
Mode 2, the Beidou foundation enhancement system is not arranged around the electric power infrastructure site, long-term continuous monitoring is needed, 3 or more observation piers are arranged at a place which is hard in geological structure, free of object shielding and 3-5 kilometers away from a monitoring point, Beidou high-precision receivers and GNSS antennas are erected, each Beidou high-precision receiver serves as a GNSS reference station, and the Beidou foundation enhancement system is built through a parallel network and serves as a reference source.
Then, a plurality of Beidou high-precision monitoring receivers are distributed in the section to be monitored, and a Beidou monitoring station is built.
As shown in fig. 1, after big dipper reference station and big dipper monitoring station have been built, observe the big dipper satellite simultaneously, utilize big dipper reference station and big dipper monitoring station to link to each other with the surveillance center server respectively, monitor according to following method:
s1, acquiring real-time position information of a reference point and a monitoring point distributed in the power infrastructure construction geological environment; the real-time position information of the reference point and the monitoring point is obtained by resolving the reference station and the monitoring station according to the received satellite signals at the current moment; the real-time position information comprises three-dimensional space coordinates of the reference point and the monitoring point and time for acquiring the current coordinate.
S2, calculating the relative position of the monitoring point according to the obtained reference point and the real-time position information of the monitoring point; further, the relative position of the monitoring point is calculated by adopting an RTK relative positioning principle. The method specifically comprises the steps that the monitoring station utilizes an RTK carrier phase differential technology to calculate accurate three-dimensional coordinate information of the monitoring station at the current time through the received reference coordinate value of the reference point; the reference station and the monitoring station transmit the information back to the monitoring center. And the monitoring center server continuously receives the Beidou data of the reference station and the monitoring points, and calculates the real-time three-dimensional coordinates of the monitoring points by using a high-precision position data resolving and analyzing method according to an RTK carrier phase real-time dynamic difference technology.
S3, calculating real-time offset variation or accumulated variation of the monitoring point by using the previous relative position and the current relative position of the monitoring point according to the sampling interval;
and S4, comparing the obtained real-time offset variation or the accumulated variation with a preset threshold, and alarming according to a predefined alarm level if the acquired real-time offset variation or the accumulated variation exceeds the threshold. And determining whether to give an alarm or not by comparing the calculated instantaneous and accumulated coordinate variation with a preset threshold. If the alarm level exceeds the threshold value, multi-means notification is carried out according to the predefined alarm level to the monitoring management personnel, the coordinates of the alarm monitoring point are determined, and the emergency instruction of the infrastructure site is issued.
Specifically, a monitoring system deployed by a monitoring center analyzes and calculates the acquired GNSS data of each monitoring point by a high-precision position data resolving and analyzing method, and the real-time offset variation of each monitoring point can be generated on the assumption that the data at the current moment is analyzed and calculated; the assumption is that after a long period of time, usually 2 hours or more, is collected, the deviation variation of each monitoring point is calculated, and the accumulated variation of the displacement of the monitoring point can be obtained.
S6, generating a change curve according to the obtained real-time offset change or accumulated change, and predicting the situation; the geological environment change of the power infrastructure site can be effectively monitored through the variable quantities, and the stability change trend of the power infrastructure site can be early warned and predicted.
As shown in fig. 2, the invention also provides a Beidou-based power infrastructure construction geological environment monitoring system, which comprises: the system comprises a monitoring station, a reference station and a monitoring center server;
the monitoring station and the reference station are used for receiving Beidou satellite signals in real time; converting the received Beidou satellite signals into real-time position information of monitoring points and reference points;
the monitoring center server comprises a position information acquisition module used for acquiring the real-time position information of the reference point and the monitoring point;
the data processing module is used for calculating the relative position of the monitoring point according to the acquired reference point and the real-time position information of the monitoring point;
the variable quantity calculating module is used for calculating the real-time offset variable quantity or the accumulated variable quantity of the monitoring point by utilizing the previous relative position and the current relative position of the monitoring point according to the sampling interval;
and the alarm module is used for comparing the acquired real-time offset variation or the accumulated variation with a preset threshold value, and alarming according to a predefined alarm level if the acquired real-time offset variation or the accumulated variation exceeds the threshold value.
The monitoring center server further comprises a situation prediction module, and the situation prediction module is used for generating a change curve according to the acquired real-time offset change amount or accumulated change amount, and performing situation prediction and early warning. The displacement of the monitoring point, the sedimentation change real-time curve, the situation prediction and the like can be displayed in real time through coordinate conversion.
The reference station is a Beidou foundation enhancement system and/or a temporary reference station arranged in the electric power infrastructure construction geological environment.
The Beidou foundation enhancement system comprises a plurality of observation piers, a Beidou high-precision receiver and a GNSS antenna; the Beidou high-precision receiver is arranged on the observation pier, and the Beidou high-precision receiver is connected with the GNSS antenna. The periphery of an electric power infrastructure field is not provided with a Beidou foundation enhancement system, long-term continuous monitoring is needed, 3 or more observation piers are arranged at a place which is hard in geological structure, free of object shielding and 3-5 kilometers away from a monitoring point, Beidou high-precision receivers and GNSS antennas are erected, each Beidou high-precision receiver serves as a GNSS reference station, and the Beidou foundation enhancement system is built through a parallel network and serves as a reference source. The receiver adopts a mode (GNSS) which is mainly based on Beidou and compatible with global navigation satellite systems (GPS), Glonass (GLONASS), Galileo (Galileo) and the like, and simultaneously, the data sampling frequency of the reference station is set to be 1 Hz; the data sampling frequency of the monitoring station is 5Hz-10 Hz.
As shown in fig. 3, the temporary reference station includes a GNSS antenna, a horizontal base, a solar panel, a big dipper high-precision receiver, and a storage battery; the GNSS antenna is arranged on the horizontal base, a solar cell panel is installed below the horizontal base, and the solar cell panel, the storage battery and the Beidou high-precision receiver are sequentially connected. Furthermore, interim reference station has the mobility, can encapsulate receiver and battery into the mode of rack and carry out waterproof treatment, and the lightning rod is connected to the rack shell for prevent that thunderstorm weather from being hit by the thunder and lightning.
The high-precision position information of the monitoring point can be transmitted to a monitoring center server in a wireless mode, the wireless transmission method has various modes, and the high-precision position information can be transmitted back in a 4G/5G mode and other modes under the condition that the ground public network signal is good; if the ground public network coverage condition is weak, the position information can be returned in a radio station or Beidou short message mode.
The data communication of the method adopts 2 communication modes of ground public network and Beidou short message, and adopts the mode of ground public network communication under the condition of better ground public network coverage; and under the condition that the ground public network coverage is weak, a Beidou short message communication technology is adopted. Monitoring data of each monitoring point can be transmitted back, and the problem of a ground public network coverage blind area is effectively solved. The big dipper second short message can be used for transmitting 40 Chinese characters (628 bits) in a civil single time; the Beidou No. three short messages have 1000 Chinese characters (14000 bits) with single communication capability in China and surrounding areas;
the method is based on the Beidou high-precision positioning technology, adopts the RTK carrier phase difference principle to monitor the geological environment of the electric power infrastructure site, and can achieve the real-time dynamics of less than or equal to +/-10 mm +1ppm on the plane and less than or equal to +/-15 mm +1ppm on the elevation; the static post-treatment can reach the precision of less than or equal to +/-2.5 mm +1ppm on the plane and less than or equal to +/-5 mm +1ppm on the elevation.
According to the Beidou-based power infrastructure construction geological environment monitoring method, early warning can be performed once the power infrastructure site geological environment is monitored to be abnormal, a monitoring center can find the abnormal conditions in advance before disasters occur, and reasonable measures can be taken in time for treatment.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (10)
1. Electric power capital construction geological environment monitoring method based on big dipper, its characterized in that includes:
acquiring real-time position information of a reference point and a monitoring point distributed in the power infrastructure construction geological environment;
calculating the relative position of the monitoring point according to the acquired real-time position information of the reference point and the monitoring point;
calculating real-time offset variation or accumulated variation of the monitoring points by using the previous relative position and the current relative position of the monitoring points according to the sampling interval;
and comparing the obtained real-time offset variable quantity or the accumulated variable quantity with a preset threshold value, and if the obtained real-time offset variable quantity or the accumulated variable quantity exceeds the threshold value, alarming according to a predefined alarm level.
2. The Beidou-based power infrastructure construction geological environment monitoring method according to claim 1,
the real-time position information of the reference point and the monitoring point is obtained by resolving through a reference station and a monitoring station according to the received satellite signals respectively; the real-time position information comprises three-dimensional space coordinates of the reference point and the monitoring point and time for acquiring the current coordinate.
3. The Beidou-based power infrastructure construction geological environment monitoring method according to claim 1, characterized in that the relative position of the monitoring point is calculated by adopting an RTK relative positioning principle according to the acquired real-time position information of the reference point and the monitoring point.
4. The Beidou-based power infrastructure construction geological environment monitoring method according to claim 1, characterized in that the datum points are laid according to the following laying rules:
if the existing Beidou foundation enhancement system exists, a selection or access mode can be adopted as a reference point source;
if the existing Beidou foundation enhancement system does not exist, the Beidou foundation enhancement system or the temporary reference station is set up as a reference point source according to the length of the required monitoring time.
5. The Beidou-based electric power infrastructure construction geological environment monitoring method according to claim 1, characterized by further comprising generating a change curve according to the obtained real-time offset change amount or accumulated change amount, and performing situation prediction and early warning.
6. Electric power capital construction geological environment monitoring system based on big dipper, its characterized in that includes: the system comprises a monitoring station, a reference station and a monitoring center server;
the monitoring station and the reference station are used for receiving Beidou satellite signals in real time; converting the received Beidou satellite signals into real-time position information of monitoring points and reference points;
the monitoring center server comprises a position information acquisition module used for acquiring the real-time position information of the reference point and the monitoring point;
the data processing module is used for calculating the relative position of the monitoring point according to the acquired reference point and the real-time position information of the monitoring point;
the variable quantity calculating module is used for calculating the real-time offset variable quantity or the accumulated variable quantity of the monitoring point by utilizing the previous relative position and the current relative position of the monitoring point according to the sampling interval;
and the alarm module is used for comparing the acquired real-time offset variation or the accumulated variation with a preset threshold value, and alarming according to a predefined alarm level if the acquired real-time offset variation or the accumulated variation exceeds the threshold value.
7. The Beidou-based electric power infrastructure construction geological environment monitoring system according to claim 6, wherein the monitoring center server further comprises a situation prediction module, and the situation prediction module is used for generating a change curve according to the obtained real-time offset change amount or accumulated change amount, and performing situation prediction and early warning.
8. The Beidou-based electric power infrastructure construction geological environment monitoring system according to claim 6, characterized in that the reference station is a Beidou foundation enhancement system and/or a temporary reference station arranged in an electric power infrastructure construction geological environment.
9. The Beidou-based electric power infrastructure construction geological environment monitoring system of claim 8, wherein the Beidou foundation enhancement system comprises a plurality of observation piers, Beidou high-precision receivers and GNSS antennas; the Beidou high-precision receiver is erected on the observation pier and connected with the GNSS antenna.
10. The Beidou-based electric power infrastructure construction geological environment monitoring system according to claim 8, wherein the temporary reference station comprises a GNSS antenna, a horizontal base, a solar panel, a Beidou high precision receiver and a storage battery; the GNSS antenna is arranged on the horizontal base, a solar cell panel is installed below the horizontal base, and the solar cell panel, the storage battery and the Beidou high-precision receiver are sequentially connected.
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