High-precision dam deformation monitoring system and method based on Beidou satellite

Abstract

The present application discloses a high-precision deformation monitoring system and method for a dam based on Beidou satellites, which belongs to the field of dam deformation monitoring. The present application uses the high-precision positioning technology of Beidou satellites to analyze the deformation anomaly and uniform deformation anomaly of the dam during the water flow impact process, accurately monitors the dam deformation with high precision, and conducts a comprehensive assessment of the dam's danger, thereby improving the management personnel's ability to control the dam and further improving the safety of the dam. It solves the technical problem that the prior art cannot perform deformation anomaly and uniform deformation anomaly analysis on the dam during the water flow impact process based on the high-precision positioning technology of Beidou satellites when monitoring dam deformation, and thus cannot perform high-precision and accurate monitoring of dam deformation.

Description

Technical Field

[0001] The present application belongs to the field of dam deformation monitoring, and specifically to a high-precision dam deformation monitoring system and method based on Beidou satellite. Background Art

[0002] The appearance monitoring of large hydropower project dams is an important engineering monitoring project, which aims to ensure the structural safety and efficiency of the dams. The purpose of monitoring is to timely detect the deformation, displacement, cracks or other structural problems of the dams, so as to take appropriate maintenance and repair measures. Dam monitoring stations are usually used to monitor the structural deformation, stress, seepage, environment and other factors of the dams. When the monitoring data is abnormal, the monitoring station can issue an early warning in time to provide time for taking emergency measures to prevent the occurrence or expansion of accidents. Under the existing technology, dam monitoring stations usually monitor structural deformation based on vision or laser beacons. However, dam monitoring The foundation below the geographical location is in the same area as the monitored target. The regional displacement of the geology below will greatly affect the monitoring accuracy of the dam monitoring station. At this time, a high-precision deformation monitoring system for the dam is needed. When monitoring dam deformation, the existing technology cannot use the high-precision positioning technology of Beidou satellites to analyze the deformation anomaly and uniform deformation anomaly of the dam during the water flow impact, thereby failing to accurately monitor the dam deformation with high precision. Most of the existing technologies have the above problems. In order to solve the problems raised by this background technology, the present application designs a high-precision dam deformation monitoring system and method based on Beidou satellites. Summary of the invention

[0003] In order to address the deficiencies in the prior art mentioned in the background technology, the present application proposes a high-precision deformation monitoring system and method for dams based on Beidou satellites. The present application is based on the high-precision positioning technology of Beidou satellites, analyzes the deformation anomalies and uniform deformation anomalies of the dam during the water flow impact process, monitors the deformation of the dam with high precision and accuracy, and conducts a comprehensive assessment of the danger of the dam, thereby improving the management personnel's ability to control the dam and further improving the safety of the dam.

[0004] To achieve the above objectives, the present application provides the following technical solutions: In the first aspect, the present application provides a high-precision deformation monitoring method for dams based on Beidou satellites, which includes the following specific steps:

[0005] Step 1: Use the real-time positioning function of the Beidou satellite to locate the three-dimensional position of the Beidou position sensor, obtain the three-dimensional coordinates of the location of the Beidou position sensor, and obtain the flow rate and flow data of the river at this time;

[0006] Step 2: Perform deformation distance anomaly analysis and deformation uniformity anomaly analysis based on the three-dimensional coordinates of the location of the Beidou position sensor, and perform deformation anomaly analysis according to the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results;

[0007] Step 3, obtaining the velocity and flow data of the river and importing them into the water flow impact hazard analysis model to perform water flow impact hazard analysis;

[0008] Step 4: Obtain deformation anomaly analysis results and water flow impact hazard analysis results to conduct deformation hazard assessment;

[0009] Step 5: Provide dam deformation risk warning based on the deformation risk assessment results.

[0010] As a preferred technical solution for the high-precision deformation monitoring method of the dam based on Beidou satellite, the three-dimensional position of the Beidou position sensor is located by the real-time positioning function of the Beidou satellite, the three-dimensional coordinates of the location of the Beidou position sensor are obtained, and the specific content of obtaining the velocity and flow data of the river at this time is:

[0011] Step 11, install the Beidou position sensor at the designated position of the dam, and connect the Beidou position sensor to the positioning function module signal of the Beidou satellite system, locate the three-dimensional position of the Beidou position sensor through the real-time positioning function of the Beidou satellite, obtain the three-dimensional coordinates of the location of the Beidou position sensor in real time, and store them in the coordinate information storage component;

[0012] Step 12: The water velocity and water flow rate data of the impact water flow are obtained in real time through the water flow sensor, and stored in the water flow information storage component.

[0013] As a preferred technical solution of the high-precision deformation monitoring method for dams based on Beidou satellites, the deformation distance anomaly analysis and deformation uniformity anomaly analysis based on the three-dimensional coordinates of the location of the Beidou position sensor, and the deformation anomaly analysis according to the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results include the following specific steps:

[0014] Step 21, obtaining the three-dimensional coordinates of the location of the corresponding Beidou position sensor and the three-dimensional coordinates of the original location, and obtaining the distance data between the location of the Beidou position sensor and the center point of the dam;

[0015] Step 22, import the three-dimensional coordinates of the location of the Beidou position sensor, the three-dimensional coordinates of the original location, and the distance data between the location of the Beidou position sensor and the center point of the dam into the deformation distance anomaly analysis model to perform deformation distance anomaly analysis;

[0016] The deformation distance anomaly analysis model includes the following specific steps:

[0017] Step 221, obtain the three-dimensional coordinates of the position corresponding to the Beidou position sensor and the three-dimensional coordinates of the original position, and obtain the displacement data of the position of the Beidou position sensor. The method of obtaining the displacement is the distance between two points in the three-dimensional coordinate system. The three-dimensional coordinate system is divided into mutually perpendicular horizontal, vertical and vertical coordinates. Among them, the displacement calculation formula of the position is:

[0018] , where x is the horizontal coordinate value of the three-dimensional coordinate of the current position, xs is the horizontal coordinate value of the three-dimensional coordinate of the original position, y is the vertical coordinate value of the three-dimensional coordinate of the current position, ys is the vertical coordinate value of the three-dimensional coordinate of the original position, z is the vertical coordinate value of the three-dimensional coordinate of the current position, zs is the vertical coordinate value of the three-dimensional coordinate of the original position, and Tr is the displacement of the current position;

[0019] Step 222: Obtain the displacement data of all Beidou position sensors, select the location of the largest displacement data as the central displacement location, obtain the distance from all Beidou position sensors to the central displacement location, and import the deformation distance outlier value evaluation formula to calculate the deformation distance outlier value, wherein the deformation distance outlier value evaluation formula is: , where Hz is the deformation distance anomaly value, zb is the height of the dam, and m is the number of locations of all Beidou position sensors. is the displacement data of the i-th Beidou position sensor, is the safety value of the displacement data at the location of the Beidou position sensor. is the distance from the location of the i-th Beidou position sensor to the center displacement position;

[0020] Step 23, importing the three-dimensional coordinates of the position of the corresponding Beidou position sensor, the three-dimensional coordinates of the original position and the deformation direction data into the deformation uniform anomaly analysis model to perform deformation uniform anomaly analysis;

[0021] The deformation uniformity anomaly analysis model includes the following specific steps:

[0022] Step 231, obtaining the three-dimensional coordinates of the position corresponding to the Beidou position sensor, the three-dimensional coordinates of the original position, and deformation direction data, wherein the deformation direction data is the vector direction of the three-dimensional coordinates of the original position of the Beidou position sensor whose starting point is the three-dimensional coordinates of the original position of the Beidou position sensor and whose end point is the three-dimensional coordinates of the position corresponding to the Beidou position sensor;

[0023] Step 232: Import the acquired three-dimensional coordinates of the position of the corresponding Beidou position sensor, the three-dimensional coordinates of the original position, and the deformation direction data into the deformation uniform anomaly analysis value calculation formula to calculate the deformation uniform anomaly analysis value, wherein the deformation uniform anomaly analysis value calculation formula is: , where a is the distance uniformity weight, is the average displacement data of all Beidou position sensors. is the angle between the deformation direction of the i-th Beidou position sensor and the horizontal plane, is the average value of the angles between the deformation directions of all Beidou position sensors and the horizontal plane;

[0024] In this step, the packing hazard is evaluated by analyzing the uniformity of displacement distance and angle at various locations of the dam;

[0025] Step 24, performing deformation anomaly analysis based on the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results, the specific content of which is: obtaining the calculated deformation distance anomaly value and deformation uniformity anomaly analysis value, substituting them into the deformation anomaly value calculation formula to calculate the deformation anomaly value, wherein the deformation anomaly value calculation formula is: , where k is the abnormal proportion of deformation distance.

[0026] As a preferred technical solution of the Beidou satellite-based high-precision dam deformation monitoring method, the acquisition of river velocity and flow data and importing them into the water flow impact hazard analysis model for water flow impact hazard analysis includes the following specific steps:

[0027] Step 31, obtaining water velocity and water flow data of the impact water flow within the monitoring period;

[0028] Step 32: Import the water velocity and water flow data of the impact water flow within the monitoring period into the water flow impact hazard value calculation formula to calculate the water flow impact hazard value, wherein the water flow impact hazard value calculation formula is: , where T is the monitoring period, c is the flow rate weight, is the flow velocity hitting the dam at time t, is the maximum value of the safe range of water velocity that impacts the dam, is the water flow hitting the dam at time t, is the maximum value of the safe range of water flow impacting the dam, and dt is the time integral.

[0029] In this step, the water velocity and water flow data of the impact water flow during the monitoring period are calculated and analyzed to obtain the danger assessment of the water flow impact on the dam;

[0030] As a preferred technical solution for the Beidou satellite-based high-precision dam deformation monitoring method, the acquisition of deformation anomaly analysis results and water flow impact hazard analysis results for deformation hazard assessment includes the following specific contents:

[0031] Obtain the calculated deformation anomaly value and water flow impact hazard value, and substitute them into the deformation hazard value assessment formula to perform deformation hazard value assessment, where the deformation hazard value assessment formula is: ;

[0032] The calculated deformation risk value is obtained and compared with the set deformation risk threshold. If the obtained deformation risk value is greater than or equal to the set deformation risk threshold, the dam is assessed to be in deformation risk and a dam deformation risk warning signal is issued. If the obtained deformation risk value is less than the set deformation risk threshold, the dam is assessed to be in deformation risk and no dam deformation risk warning signal is issued.

[0033] In the second aspect, the present application provides a high-precision deformation monitoring system for dams based on Beidou satellites, which is implemented based on the above-mentioned high-precision deformation monitoring method for dams based on Beidou satellites, and specifically includes a data acquisition module, a deformation anomaly analysis module, a water flow impact hazard analysis module, a deformation hazard assessment module and a deformation hazard warning module;

[0034] The data acquisition module is used to obtain the three-dimensional coordinates of the location of the Beidou position sensor and the flow rate and flow data of the river at that time;

[0035] The deformation anomaly analysis module performs deformation distance anomaly analysis and deformation uniformity anomaly analysis based on the three-dimensional coordinates of the location of the Beidou position sensor, and performs deformation anomaly analysis according to the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results;

[0036] The water flow impact hazard analysis module is used to obtain the flow velocity and flow rate data of the river and import them into the water flow impact hazard analysis model to perform water flow impact hazard analysis;

[0037] The deformation risk assessment module is used to obtain deformation anomaly analysis results and water flow impact risk analysis results to perform deformation risk assessment;

[0038] The deformation risk warning module is used to provide a deformation risk warning for the dam according to the obtained deformation risk assessment result.

[0039] In a third aspect, the present application provides an electronic device, comprising: a processor and a memory, wherein the memory stores a computer program that can be called by the processor;

[0040] The processor executes the above-mentioned Beidou satellite-based high-precision dam deformation monitoring method by calling the computer program stored in the memory.

[0041] In a fourth aspect, the present application provides a computer-readable storage medium storing instructions, which, when executed on a computer, enables the computer to execute the Beidou satellite-based high-precision dam deformation monitoring method as described above.

[0042] Compared with the prior art, the beneficial effects of this application are:

[0043] This application is based on the high-precision positioning technology of Beidou satellites. It analyzes the deformation anomalies and uniform deformation anomalies of the dam during the water flow impact process, monitors the dam deformation with high precision and accuracy, and conducts a comprehensive assessment of the dam's danger, thereby improving the management personnel's ability to control the dam and further improving the safety of the dam. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings;

[0045] Figure 1 This is a schematic diagram of the overall process of the Beidou satellite-based high-precision dam deformation monitoring method of this application;

[0046] Figure 2 This is a flowchart of step 2 of the Beidou satellite-based high-precision dam deformation monitoring method of this application;

[0047] Figure 3 This is a schematic diagram of the overall framework of the Beidou satellite-based high-precision dam deformation monitoring system in this application;

[0048] Figure 4 Schematic diagram of the Beidou position sensor location for this application;

[0049] Figure 5 This is a schematic diagram of the three-dimensional coordinate system of this application. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use.

[0051] Example 1

[0052] In order to solve the technical problems raised in the background technology, the present application provides a preferred embodiment: Figure 1-Figure 2 As shown, the high-precision deformation monitoring method of the dam based on Beidou satellite includes the following specific steps:

[0053] Step 1: Use the real-time positioning function of the Beidou satellite to locate the three-dimensional position of the Beidou position sensor, obtain the three-dimensional coordinates of the location of the Beidou position sensor, and obtain the flow rate and flow data of the river at this time;

[0054] In this embodiment, the three-dimensional position of the Beidou position sensor is located by the real-time positioning function of the Beidou satellite, and the three-dimensional coordinates of the location of the Beidou position sensor are obtained. At the same time, the specific contents of the velocity and flow data of the river at this time are obtained as follows:

[0055] Step 11: Figure 4 As shown, a Beidou position sensor is installed at a designated position on the dam, and the Beidou position sensor is connected to the positioning function module signal of the Beidou satellite system, and the three-dimensional position of the Beidou position sensor is located through the real-time positioning function of the Beidou satellite, and the three-dimensional coordinates of the location of the Beidou position sensor are obtained in real time and stored in the coordinate information storage component;

[0056] Positioning technology principle: Based on the high-precision positioning technology of Beidou satellites, the dam is continuously and real-timely monitored for deformation by receiving signals from Beidou satellites. Differential positioning technology and data smoothing algorithms are used to improve positioning accuracy and reliability, and to achieve accurate measurement of tiny deformations of the dam. The positioning function application advantages of the Beidou satellite system: First, its positioning accuracy can reach the millimeter level, which is suitable for dam deformation monitoring with extremely high precision requirements. Second, it is not affected by weather and environment, and can achieve all-weather monitoring, providing strong guarantees for the safe operation of the project. In addition, it supports unattended automated monitoring, reduces manual intervention, and improves monitoring efficiency. Finally, the short message communication function of the Beidou system can achieve real-time data transmission without public network coverage, ensuring timely transmission of monitoring information in emergency situations.

[0057] Step 12: acquiring water velocity and water flow data of the impact water flow in real time through a water flow sensor, and storing the data in a water flow information storage component;

[0058] Step 2: Perform deformation distance anomaly analysis and deformation uniformity anomaly analysis based on the three-dimensional coordinates of the location of the Beidou position sensor, and perform deformation anomaly analysis according to the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results;

[0059] In this embodiment, the deformation distance anomaly analysis and the deformation uniformity anomaly analysis are performed based on the three-dimensional coordinates of the location of the Beidou position sensor, and the deformation anomaly analysis is performed according to the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results, including the following specific steps:

[0060] Step 21, obtaining the three-dimensional coordinates of the location of the corresponding Beidou position sensor and the three-dimensional coordinates of the original location, and obtaining the distance data between the location of the Beidou position sensor and the center point of the dam;

[0061] Step 22, import the three-dimensional coordinates of the location of the Beidou position sensor, the three-dimensional coordinates of the original location, and the distance data between the location of the Beidou position sensor and the center point of the dam into the deformation distance anomaly analysis model to perform deformation distance anomaly analysis;

[0062] In a preferred embodiment, the deformation distance anomaly analysis model includes the following specific steps:

[0063] Step 221: Figure 5 As shown, the three-dimensional coordinates of the corresponding Beidou position sensor and the three-dimensional coordinates of the original position are obtained, and the displacement data of the Beidou position sensor is obtained. The method of obtaining the displacement is the distance between two points in the three-dimensional coordinate system. The three-dimensional coordinate system is divided into mutually perpendicular horizontal, vertical and vertical coordinates. Among them, the displacement calculation formula of the position is: , where x is the horizontal coordinate value of the three-dimensional coordinate of the current position, xs is the horizontal coordinate value of the three-dimensional coordinate of the original position, y is the vertical coordinate value of the three-dimensional coordinate of the current position, ys is the vertical coordinate value of the three-dimensional coordinate of the original position, z is the vertical coordinate value of the three-dimensional coordinate of the current position, zs is the vertical coordinate value of the three-dimensional coordinate of the original position, and Tr is the displacement of the current position;

[0064] Step 222: Obtain the displacement data of all Beidou position sensors, select the location of the largest displacement data as the central displacement location, obtain the distance from all Beidou position sensors to the central displacement location, and import the deformation distance outlier value evaluation formula to calculate the deformation distance outlier value, wherein the deformation distance outlier value evaluation formula is: , where Hz is the deformation distance anomaly value, zb is the height of the dam, and m is the number of locations of all Beidou position sensors. is the displacement data of the i-th Beidou position sensor, is the safety value of the displacement data at the location of the Beidou position sensor. is the distance from the location of the i-th Beidou position sensor to the center displacement position;

[0065] It should be noted in this embodiment that if there are two or more positions where the maximum displacement data are located, the center position of the image formed by the line connecting the positions where the displacement data are located is taken as the center displacement position;

[0066] Step 23, importing the three-dimensional coordinates of the position of the corresponding Beidou position sensor, the three-dimensional coordinates of the original position and the deformation direction data into the deformation uniform anomaly analysis model to perform deformation uniform anomaly analysis;

[0067] In a preferred embodiment, the deformation uniformity anomaly analysis model includes the following specific steps:

[0068] Step 231, obtaining the three-dimensional coordinates of the position corresponding to the Beidou position sensor, the three-dimensional coordinates of the original position, and deformation direction data, wherein the deformation direction data is the vector direction of the three-dimensional coordinates of the original position of the Beidou position sensor whose starting point is the three-dimensional coordinates of the original position of the Beidou position sensor and whose end point is the three-dimensional coordinates of the position corresponding to the Beidou position sensor;

[0069] Step 232: Import the acquired three-dimensional coordinates of the position of the corresponding Beidou position sensor, the three-dimensional coordinates of the original position, and the deformation direction data into the deformation uniform anomaly analysis value calculation formula to calculate the deformation uniform anomaly analysis value, wherein the deformation uniform anomaly analysis value calculation formula is:

[0070] , where a is the distance uniformity weight, is the average displacement data of all Beidou position sensors. is the angle between the deformation direction of the i-th Beidou position sensor and the horizontal plane, is the average value of the angles between the deformation directions of all Beidou position sensors and the horizontal plane;

[0071] The benefit of step 231 and step 232 is that the packing hazard is evaluated by analyzing the uniformity of the displacement distance and angle at each position of the dam;

[0072] Step 24, performing deformation anomaly analysis based on the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results, the specific content of which is: obtaining the calculated deformation distance anomaly value and deformation uniformity anomaly analysis value, substituting them into the deformation anomaly value calculation formula to calculate the deformation anomaly value, wherein the deformation anomaly value calculation formula is: , where k is the abnormal proportion of deformation distance;

[0073] Step 3, obtaining the velocity and flow data of the river and importing them into the water flow impact hazard analysis model to perform water flow impact hazard analysis;

[0074] In this embodiment, obtaining the flow velocity and flow rate data of the river and importing them into the water flow impact hazard analysis model to perform water flow impact hazard analysis includes the following specific steps:

[0075] Step 31, obtaining water velocity and water flow data of the impact water flow within the monitoring period;

[0076] Step 32: Import the water velocity and water flow data of the impact water flow within the monitoring period into the water flow impact hazard value calculation formula to calculate the water flow impact hazard value, wherein the water flow impact hazard value calculation formula is: , where T is the monitoring period, c is the flow rate weight, is the flow velocity hitting the dam at time t, is the maximum value of the safe range of water velocity that impacts the dam, is the water flow hitting the dam at time t, is the maximum value of the safe range of water flow impacting the dam, and dt is the time integral.

[0077] The benefit of step 31 and step 32 is that by calculating and analyzing the water velocity and water flow data of the impact water flow within the monitoring period, an assessment of the danger of the water flow impact on the dam is obtained;

[0078] Step 4: Obtain deformation anomaly analysis results and water flow impact hazard analysis results to conduct deformation hazard assessment;

[0079] In this embodiment, obtaining deformation anomaly analysis results and water flow impact hazard analysis results to perform deformation hazard assessment includes the following specific contents:

[0080] Obtain the calculated deformation anomaly value and water flow impact hazard value, and substitute them into the deformation hazard value assessment formula to perform deformation hazard value assessment, where the deformation hazard value assessment formula is: ;

[0081] Obtain the calculated deformation risk value and compare it with the set deformation risk threshold. If the obtained deformation risk value is greater than or equal to the set deformation risk threshold, it is assessed that the dam is in deformation risk and a dam deformation risk warning signal is issued. If the obtained deformation risk value is less than the set deformation risk threshold, it is assessed that the dam is not in deformation risk and no dam deformation risk warning signal is issued.

[0082] Step 5: Provide dam deformation risk warning based on the obtained deformation risk assessment results;

[0083] In this embodiment, the method of dam deformation danger warning is to transmit the dam deformation danger warning signal to the dam management department through wired, wireless or Beidou short message, so as to remind the dam management department to carry out dam maintenance.

[0084] The acquisition of the preset parameters in this embodiment is a conventional technical means in the field. The preferred method of obtaining the preset parameters (such as the uniform distance weight, the deformation distance anomaly ratio, the flow velocity weight and the deformation danger threshold, etc.) is as follows: obtain the three-dimensional coordinates of the locations of the Beidou position sensors of several groups of dams after being impacted by water flow, and simultaneously obtain the flow velocity and flow data of the river, calculate the deformation danger value through these parameters, obtain the judgment results of experts on whether these dams are dangerous, import the deformation danger value and the judgment results on whether these dams are dangerous into the fitting software, and output the values ​​of the preset parameters (such as the uniform distance weight, the deformation distance anomaly ratio, the flow velocity weight and the deformation danger threshold, etc.) that meet the maximum judgment accuracy.

[0085] The advantages of this embodiment over the prior art are as follows: based on the high-precision positioning technology of the Beidou satellite, the deformation anomaly and uniform deformation anomaly of the dam during the water flow impact are analyzed, the deformation of the dam is monitored with high precision and accuracy, and the hazard of the dam is comprehensively evaluated, which improves the management personnel's control over the dam and further improves the safety of the dam.

[0086] Example 2

[0087] like Figure 3 As shown, a high-precision deformation monitoring system for dams based on Beidou satellites is implemented based on the above-mentioned high-precision deformation monitoring method for dams based on Beidou satellites, and specifically includes a data acquisition module, a deformation anomaly analysis module, a water flow impact hazard analysis module, a deformation hazard assessment module and a deformation hazard warning module; wherein the data acquisition module is used to obtain the three-dimensional coordinates of the location of the Beidou position sensor, and at the same time obtain the velocity and flow data of the river at this time; the deformation anomaly analysis module performs deformation distance anomaly analysis and deformation uniformity anomaly analysis based on the three-dimensional coordinates of the location of the Beidou position sensor, and performs deformation anomaly analysis based on the deformation distance anomaly analysis results and deformation uniformity anomaly analysis results; the water flow impact hazard analysis module is used to obtain the velocity and flow data of the river and import them into the water flow impact hazard analysis model to perform water flow impact hazard analysis; the deformation hazard assessment module is used to obtain the deformation anomaly analysis results and the water flow impact hazard analysis results for deformation hazard assessment; the deformation hazard warning module is used to perform dam deformation hazard warning based on the obtained deformation hazard assessment results,

[0088] It should be noted that Figure 3 The arrow in the figure indicates the data transmission direction of the system. The specific steps of the system module in this embodiment have been fully mentioned in the above method embodiment, so they will not be repeated here in detail.

[0089] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When a computer instruction or computer program is loaded or executed on a computer, a process or function according to an embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center through a wired network or / and a wireless network. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0090] The terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0091] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of application involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the aforementioned application concept. For example, the above features are replaced with (but not limited to) technical features with similar functions applied in the present application.

Claims

1. A high-precision deformation monitoring method for dams based on Beidou satellites, characterized in that: It includes the following specific steps: Step 1: Use the real-time positioning function of the Beidou satellite to locate the three-dimensional position of the Beidou position sensor, obtain the three-dimensional coordinates of the location of the Beidou position sensor, and obtain the flow rate and flow data of the river at this time; Step 2: Perform deformation distance anomaly analysis and deformation uniformity anomaly analysis based on the three-dimensional coordinates of the location of the Beidou position sensor, and perform deformation anomaly analysis according to the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results; Step 3, obtaining the velocity and flow data of the river and importing them into the water flow impact hazard analysis model to perform water flow impact hazard analysis; Step 4: Obtain deformation anomaly analysis results and water flow impact hazard analysis results to conduct deformation hazard assessment; Step 5: Provide dam deformation risk warning based on the obtained deformation risk assessment results; The method of performing deformation distance anomaly analysis and deformation uniformity anomaly analysis based on the three-dimensional coordinates of the location of the Beidou position sensor, and performing deformation anomaly analysis according to the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results comprises the following specific steps: Step 21, obtaining the three-dimensional coordinates of the location of the corresponding Beidou position sensor and the three-dimensional coordinates of the original location, and obtaining the distance data between the location of the Beidou position sensor and the center point of the dam; Step 22, import the three-dimensional coordinates of the location of the Beidou position sensor, the three-dimensional coordinates of the original location, and the distance data between the location of the Beidou position sensor and the center point of the dam into the deformation distance anomaly analysis model to perform deformation distance anomaly analysis; Step 23, importing the three-dimensional coordinates of the position of the corresponding Beidou position sensor, the three-dimensional coordinates of the original position and the deformation direction data into the deformation uniform anomaly analysis model to perform deformation uniform anomaly analysis; Step 24, performing deformation anomaly analysis based on the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results, the specific content of which is: obtaining the calculated deformation distance anomaly value and deformation uniformity anomaly analysis value, substituting them into the deformation anomaly value calculation formula to calculate the deformation anomaly value, wherein the deformation anomaly value calculation formula is: , where k is the deformation distance anomaly ratio, Hz is the deformation distance anomaly value, and Hu is the deformation uniform anomaly analysis value.

2. The Beidou satellite-based high-precision dam deformation monitoring method according to claim 1, characterized in that: The deformation distance anomaly analysis model includes the following specific steps: Step 221, obtain the three-dimensional coordinates of the position corresponding to the Beidou position sensor and the three-dimensional coordinates of the original position, and obtain the displacement data of the position of the Beidou position sensor, wherein the displacement calculation formula of the position is: , where x is the horizontal coordinate value of the three-dimensional coordinate of the current position, xs is the horizontal coordinate value of the three-dimensional coordinate of the original position, y is the vertical coordinate value of the three-dimensional coordinate of the current position, ys is the vertical coordinate value of the three-dimensional coordinate of the original position, z is the vertical coordinate value of the three-dimensional coordinate of the current position, zs is the vertical coordinate value of the three-dimensional coordinate of the original position, and Tr is the displacement of the current position; Step 222: Obtain the displacement data of all Beidou position sensors, select the location of the largest displacement data as the central displacement location, obtain the distance from all Beidou position sensors to the central displacement location, and import the deformation distance outlier value evaluation formula to calculate the deformation distance outlier value, wherein the deformation distance outlier value evaluation formula is: , where Hz is the deformation distance anomaly value, zb is the height of the dam, and m is the number of locations of all Beidou position sensors. is the displacement data of the i-th Beidou position sensor, is the safety value of the displacement data at the location of the Beidou position sensor. is the distance from the location of the i-th Beidou position sensor to the center displacement position.

3. The Beidou satellite-based high-precision dam deformation monitoring method according to claim 2 is characterized in that: The deformation uniformity anomaly analysis model includes the following specific steps: Step 231, obtaining the three-dimensional coordinates of the position of the corresponding Beidou position sensor, the three-dimensional coordinates of the original position and the deformation direction data; Step 232: Import the acquired three-dimensional coordinates of the position of the corresponding Beidou position sensor, the three-dimensional coordinates of the original position, and the deformation direction data into the deformation uniform anomaly analysis value calculation formula to calculate the deformation uniform anomaly analysis value, wherein the deformation uniform anomaly analysis value calculation formula is: , where a is the distance uniformity weight, is the average displacement data of all Beidou position sensors. is the angle between the deformation direction of the i-th Beidou position sensor and the horizontal plane, It is the average value of the angle between the deformation direction of all Beidou position sensors and the horizontal plane.

4. The Beidou satellite-based high-precision dam deformation monitoring method according to claim 3 is characterized in that: The method of obtaining the flow velocity and flow rate data of the river and importing them into the water flow impact hazard analysis model to perform water flow impact hazard analysis includes the following specific steps: Step 31, obtaining water velocity and water flow data of the impact water flow within the monitoring period; Step 32: Import the water velocity and water flow data of the impact water flow within the monitoring period into the water flow impact hazard value calculation formula to calculate the water flow impact hazard value, wherein the water flow impact hazard value calculation formula is: , where T is the monitoring period, c is the flow rate weight, is the flow velocity hitting the dam at time t, is the maximum value of the safe range of water velocity that impacts the dam, is the water flow hitting the dam at time t, is the maximum value of the safe range of water flow impacting the dam, and dt is the time integral.

5. The Beidou satellite-based high-precision dam deformation monitoring method according to claim 4 is characterized in that: The acquisition of deformation anomaly analysis results and water flow impact hazard analysis results for deformation hazard assessment includes the following specific contents: Obtain the calculated deformation anomaly value and water flow impact hazard value, and substitute them into the deformation hazard value assessment formula to perform deformation hazard value assessment, where the deformation hazard value assessment formula is: ; Obtain the calculated deformation risk value and compare it with the set deformation risk threshold. If the obtained deformation risk value is greater than or equal to the set deformation risk threshold, it is assessed that the dam is in danger of deformation and a dam deformation risk warning signal is issued. If the obtained deformation risk value is less than the set deformation risk threshold, it is assessed that the dam is not in danger of deformation and no dam deformation risk warning signal is issued.

6. A high-precision deformation monitoring system for dams based on Beidou satellites, which is implemented based on the high-precision deformation monitoring method for dams based on Beidou satellites as claimed in any one of claims 1 to 5, characterized in that: It specifically includes a data acquisition module, a deformation anomaly analysis module, a water flow impact hazard analysis module, a deformation hazard assessment module and a deformation hazard early warning module; The data acquisition module is used to obtain the three-dimensional coordinates of the location of the Beidou position sensor and the flow rate and flow data of the river at that time; The deformation anomaly analysis module performs deformation distance anomaly analysis and deformation uniformity anomaly analysis based on the three-dimensional coordinates of the location of the Beidou position sensor, and performs deformation anomaly analysis according to the deformation distance anomaly analysis results and the deformation uniformity anomaly analysis results; The water flow impact hazard analysis module is used to obtain the flow velocity and flow rate data of the river and import them into the water flow impact hazard analysis model to perform water flow impact hazard analysis; The deformation risk assessment module is used to obtain deformation anomaly analysis results and water flow impact risk analysis results to perform deformation risk assessment; The deformation risk warning module is used to issue a deformation risk warning for the dam according to the obtained deformation risk assessment result.

Images