Power transmission tower state monitoring method and system

Abstract

The invention discloses a power transmission tower state monitoring method and system, and relates to the technical field of tower monitoring, and the method comprises the steps: building a tower model, and obtaining a point offset body corresponding to each node; performing inclination simulation on the iron tower model to obtain an inclination range area, a dangerous inclination area and dangerous node distribution; monitoring the real-time state of the power transmission tower based on dangerous node distribution and a sensor; the method is used for solving the problems that an information collection method is relatively conventional, the inclination state of the power transmission tower can be judged and monitored only through existing information such as the inclination angle, and the overall deformation of the power transmission tower cannot be effectively analyzed based on position changes of nodes formed by main materials; therefore, the problem that abnormal deformation of the power transmission tower cannot be monitored in time can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of iron tower monitoring, and in particular to a method and system for monitoring the status of a transmission iron tower. Background Art

[0002] Transmission towers are structures used to support high-voltage or ultra-high-voltage overhead transmission line conductors and lightning conductors. They are mainly used in power transmission systems to transmit electricity by laying conductors. The status monitoring methods of transmission towers mainly include satellite remote sensing detection, Internet of Things sensor detection, drone inspection, on-site inspection and early warning systems.

[0003] Existing methods for monitoring the status of transmission towers usually collect information about the settlement, tilt and meteorological conditions of the surrounding rock and soil of the transmission towers, and obtain warning values ​​when abnormalities occur in the transmission towers through monitoring and risk assessment, and monitor the status of the transmission towers through real-time monitoring and warning values. Although this improved method can provide timely warnings when abnormalities occur in the status of the transmission towers, the information collection method is relatively conventional and can only judge and monitor the tilt status of the transmission towers through existing information such as tilt angles. When the main materials in the transmission towers are deformed, resulting in changes in the structure of the towers, it is impossible to effectively analyze the overall deformation of the transmission towers based on the position changes of the nodes composed of the main materials, resulting in the problem of being unable to timely monitor the abnormal deformation of the transmission towers. For example, in the patent application with publication number CN118298592A, the patent application A real-time monitoring method and system for geological hazards in the foundation of high-voltage transmission line towers has been developed. The solution is to collect basic information of transmission towers, monitor failure status, judge the degree of failure through failure judgment standards and comprehensive risk assessment, and set warning values ​​corresponding to different failure degrees to make early warning forecasts. Other methods for monitoring the status of transmission towers are usually for monitoring power supply, which still cannot solve the problem that the information collection method is relatively conventional and can only judge and monitor the inclination status of the transmission tower through existing information such as the inclination angle. When the main material in the transmission tower is deformed and the tower structure changes, it is impossible to effectively analyze the overall deformation of the transmission tower based on the position change of the nodes composed of the main material, resulting in the inability to timely monitor the abnormal deformation of the transmission tower. In view of this, it is necessary to improve the existing transmission tower status monitoring method. Summary of the Invention

[0004] The present invention aims to solve, at least to a certain extent, one of the technical problems in the prior art. By proposing a transmission tower state monitoring method and system, the present invention is used to solve the problem that the information collection method is relatively conventional and can only judge and monitor the inclination state of the transmission tower through existing information such as the inclination angle. When the main material in the transmission tower is deformed, resulting in changes in the tower structure, it is impossible to effectively analyze the overall deformation of the transmission tower based on the position changes of the nodes composed of the main material, resulting in the inability to timely monitor the abnormal deformation of the transmission tower.

[0005] To achieve the above objectives, in a first aspect, the present application provides a method for monitoring the status of a transmission tower, comprising the following steps: Based on the model data of the transmission tower in the database, a three-dimensional model corresponding to the transmission tower is constructed and recorded as the tower model; based on the tower model, all main materials corresponding to each node in the tower model are analyzed, and based on the analysis results, a point offset body corresponding to each node is obtained; Performing a tilt simulation on the tower model based on the point offset body corresponding to each node, and obtaining the tilt range area and dangerous tilt area corresponding to the tower based on the tilt simulation results; obtaining the node distribution corresponding to the dangerous tilt area based on the tilt simulation, and recording it as the dangerous node distribution; The real-time status of the transmission tower is monitored based on the distribution of dangerous nodes and sensors, wherein the sensors include tilt sensors and position sensors.

[0006] Furthermore, a three-dimensional model corresponding to the transmission tower is constructed based on the model data of the transmission tower in the database and recorded as the tower model; all main materials corresponding to each node in the tower model are analyzed based on the tower model, and the point offset body corresponding to each node is obtained based on the analysis results, including: Based on the model data of the transmission tower in the database, a three-dimensional model corresponding to the transmission tower is constructed in the spatial coordinate system and recorded as the tower model, wherein the bottom plane of the tower model coincides with the XY plane, and the vertical coordinate of the highest point of the tower model is greater than 0; In the XY plane of the spatial coordinate system, obtain the minimum circumscribed circle that completely encloses the bottom plane of the tower model, and record it as the bottom circle of the tower; record the center of the bottom circle of the tower as the bottom center point, and record the highest point of the tower model as the top center point; record the line connecting the bottom center point and the top center point at this time as the standard vertical line, and record the angle less than or equal to 90° formed by the standard vertical line and the XY plane as α.

[0007] Furthermore, analyzing all main materials corresponding to each node in the tower model based on the tower model, and obtaining the point offset body corresponding to each node based on the analysis result also includes: All nodes formed by the intersection of main materials in the tower model are marked and recorded as main material nodes; the tilt analysis method is used to perform tilt analysis on each main material node, and the point offset body corresponding to each main material node is obtained based on the analysis results.

[0008] Furthermore, the tilt analysis method includes: For any main material node in the tower model: the main materials constituting the main material node are recorded as analysis main materials FZ1 to analysis main materials FZ b , where b is a positive integer greater than or equal to 2; based on the acceptance specifications for transmission towers, obtain the maximum value of the ratio of the main material bending length corresponding to the main material of the analysis main material between adjacent main material nodes after the tower is assembled to the main material length, and record it as the maximum bending ratio, where, when the analysis main material is bent, the straight-line distance between the main material nodes corresponding to the two ends of the analysis main material before the analysis main material is bent is recorded as the main material length, and the straight-line distance between the main material nodes corresponding to the two ends of the analysis main material after the analysis main material is bent is recorded as the main material bending length; Obtain the maximum bending ratio corresponding to all analyzed main materials; in the tower model, perform k bending simulations on the main material nodes; after each bending simulation, mark the points where the main material nodes are located, and record the scatter plot composed of the marked points after all bending simulations as a bending scatter plot; The bending simulation is as follows: all analysis main materials corresponding to the main material node are bent, and for any analysis main material, the ratio of the main material bending length corresponding to the analysis main material to the main material length during the bending process is greater than or equal to the maximum bending ratio corresponding to the analysis main material.

[0009] Furthermore, the tilt analysis method also includes: For a total of j groups of main material nodes, k bending simulations are performed on each group, and the corresponding bending scatter plot of each group is obtained; all the bending scatter plots corresponding to the j groups are placed in the same bending coordinate system, and the irregular body obtained by fitting all the scattered points in the bending coordinate system is recorded as the point offset body corresponding to the main material node.

[0010] Furthermore, the tower model is tilted and simulated based on the point offset body corresponding to each node, and the tilt range area and dangerous tilt area corresponding to the tower are obtained based on the tilt simulation results; the node distribution corresponding to the dangerous tilt area is obtained based on the tilt simulation and recorded as the dangerous node distribution, including: Based on the height of the tower, the maximum deviation of the tower's inclination is obtained, recorded as β, and the product of α and β is recorded as the maximum deviation angle; The tower model is subjected to tilt simulation, which includes: randomly updating the positions of all main material nodes in the tower model to any position in the point offset body corresponding to the main material node, and adjusting the lengths of all analysis main materials corresponding to the main material node based on the updated position of the main material node and the positional relationship between the main material node and the adjacent main material nodes; for any analysis main material, the length of the adjusted analysis main material is less than or equal to the main material length corresponding to the analysis main material.

[0011] Furthermore, the tilt simulation also includes: The tower model obtained after updating the positions of all main material nodes and adjusting the lengths of all main materials is recorded as the tilt simulation model; the line connecting the bottom center point and the top center point in the tilt simulation model is recorded as the tilt vertical line, and the degree of the acute angle formed by the tilt vertical line and the standard vertical line at the bottom center point is recorded as the simulated tilt angle; When the simulated inclination angle is less than or equal to the maximum deviation angle, the area occupied by the tilt simulation model at this time is recorded as the tilt allowed area; when the simulated inclination angle is greater than the maximum deviation angle, the area occupied by the tilt simulation model at this time is recorded as the tilt prohibited area.

[0012] Furthermore, the tilt simulation also includes: Based on the method of obtaining the tilt simulation model, all the main material nodes in the tower model are randomly updated k times, and the tilt simulation model obtained after each position update of all the main material nodes is obtained; the tilt allowed area or tilt prohibited area corresponding to the k tilt simulation models is obtained, and the area obtained by overlapping all the tilt allowed areas is recorded as the tilt range area, and the area obtained by overlapping all the tilt prohibited areas is recorded as the tilt screening area; The area in the inclined screening area that does not overlap with the inclined range area is recorded as a dangerous inclined area; among all the inclined prohibited areas, the inclined prohibited area with the largest volume overlapping with the dangerous inclined area is recorded as a dangerous analysis area, and the position data of all main material nodes in the inclined simulation model corresponding to the dangerous analysis area are recorded, and the distribution status of all main material nodes obtained by recording is recorded as the dangerous node distribution.

[0013] Furthermore, the real-time status monitoring of transmission towers based on the distribution of dangerous nodes and sensors includes: Based on the tilt sensor, the angle between the line connecting the bottom center point and the top center point of the tower and the ground is obtained in real time and recorded as the real-time tilt angle; When the difference between the real-time tilt angle and α is greater than the maximum deviation angle, a tower tilt danger warning is issued; When the difference between the real-time tilt angle and α is less than or equal to the maximum deviation angle, the position distribution status of all main material nodes in the tower is obtained based on the position sensor and recorded as the real-time node distribution; Based on the real-time node distribution, a model corresponding to the tower is built in the spatial coordinate system and recorded as the real-time tower model. When there is any overlap between the real-time tower model and the dangerous tilt area, a tower tilt danger warning is issued; for any main material node, when the position of the main material node in the real-time node distribution is the same as the position in the dangerous node distribution, the main material node is recorded as a hidden danger node; when the number of hidden danger nodes is greater than t, a tower deformation danger warning is issued, where t is half of the total number of main material nodes and is rounded down to the corresponding value.

[0014] In a second aspect, the present application further provides a transmission tower condition monitoring system, comprising a tower node analysis module, a tower tilt simulation module, and a tower condition monitoring module; The tower node analysis module is used to build a three-dimensional model corresponding to the transmission tower based on the model data of the transmission tower in the database, and record it as the tower model; based on the tower model, all the main materials corresponding to each node in the tower model are analyzed, and based on the analysis results, the point offset body corresponding to each node is obtained; The tower tilt simulation module is used to simulate the tilt of the tower model based on the point offset body corresponding to each node, and obtain the tilt range area and dangerous tilt area corresponding to the tower based on the tilt simulation results; obtain the node distribution corresponding to the dangerous tilt area based on the tilt simulation and record it as the dangerous node distribution; The tower status monitoring module is used to monitor the real-time status of the transmission tower based on the distribution of dangerous nodes and sensors, where the sensors include tilt sensors and position sensors.

[0015] Beneficial effects of the present invention: The present application first builds a three-dimensional model corresponding to the transmission tower based on the model data of the transmission tower in the database, and records it as the tower model; based on the tower model, all main materials corresponding to each node in the tower model are analyzed, and based on the analysis results, the point offset body corresponding to each node is obtained. The advantage of this is that by obtaining the point offset body corresponding to each node in the tower model, the movable range of each node in the tower when the main material structure changes can be obtained based on the deformation range of the main material in the tower under normal conditions, so that in subsequent analysis, the overall deformation of the transmission tower can be effectively analyzed based on the position change of the nodes composed of the main materials, thereby obtaining the state of the transmission tower when it is abnormal and the distribution of each node when it is abnormal, so as to timely monitor when the transmission tower has abnormal deformation; The present application also performs a tilt simulation on the tower model based on the point offset body corresponding to each node, and obtains the tilt range area and dangerous tilt area corresponding to the tower based on the result of the tilt simulation; obtains the node distribution corresponding to the dangerous tilt area based on the tilt simulation, and records it as the dangerous node distribution; finally, monitors the real-time status of the transmission tower based on the dangerous node distribution and the sensor. The advantage of this is that by obtaining the tilt range area and the dangerous tilt area, it is possible to obtain the areas corresponding to when the tilt of the transmission tower is within the allowable range and when the tilt exceeds the allowable range after deformation in various cases where the main material in the transmission tower causes the node to move due to deformation, so as to monitor the abnormal deformation of the transmission tower in subsequent analysis; and by obtaining the dangerous node distribution, it is possible to obtain the distribution status of each node in the transmission tower corresponding to the dangerous tilt area, so as to timely monitor the abnormal deformation of the transmission tower based on the position of each node in the transmission tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a principle block diagram of the system of the present invention; Figure 2 is a flow chart of the steps of the method of the present invention; Figure 3 Schematic diagram of the main material node and its corresponding analysis main material of the present invention; Figure 4 for Figure 3 Schematic diagram of the main material after deformation analysis; Figure 5 Schematic diagram of the position change of the main material node; Figure 6 Schematic diagram for obtaining the simulated inclination angle; Figure 7 Schematic diagram of the structure of the electronic device of the present invention. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example 1, first aspect, please refer to Figure 1 As shown, the present application provides a transmission tower condition monitoring system, including a tower node analysis module, a tower tilt simulation module and a tower condition monitoring module; The tower node analysis module is used to build a three-dimensional model corresponding to the transmission tower based on the model data of the transmission tower in the database, and record it as the tower model; based on the tower model, all the main materials corresponding to each node in the tower model are analyzed, and based on the analysis results, the point offset body corresponding to each node is obtained; The tower node analysis module includes a tower node analysis unit, which is configured with a tower node analysis strategy. The tower node analysis strategy includes: Based on the model data of the transmission tower in the database, a three-dimensional model corresponding to the transmission tower is constructed in the spatial coordinate system and recorded as the tower model, wherein the bottom plane of the tower model coincides with the XY plane, and the vertical coordinate of the highest point of the tower model is greater than 0; In the specific implementation process, the highest point of the tower model is the top of the transmission tower, and the subsequent top center point can be marked by directly obtaining the top of the transmission tower; Obtain the minimum circumscribed circle that completely encloses the bottom plane of the tower model in the XY plane of the spatial coordinate system, and record it as the tower bottom circle; record the center of the tower bottom circle as the bottom center point, and record the highest point of the tower model as the top center point; record the line connecting the bottom center point and the top center point as the standard vertical line, and record the angle less than or equal to 90° formed by the standard vertical line and the XY plane as α; In the specific implementation process, by obtaining the standard vertical line, it can provide data support for the subsequent data analysis of inclination judgment, so as to provide effective judgment on whether there is a risk in the tilt state of the transmission tower; Mark all nodes formed by the intersection of main materials in the tower model and record them as main material nodes; use the tilt analysis method to perform tilt analysis on each main material node, and obtain the point offset volume corresponding to each main material node based on the analysis results; The tilt analysis method includes: for any main material node in the tower model: the main materials constituting the main material node are recorded as analysis main materials FZ1 to analysis main materials FZ b , where b is a positive integer greater than or equal to 2; based on the acceptance specifications for transmission towers, obtain the maximum value of the ratio of the main material bending length corresponding to the main material of the analysis main material between adjacent main material nodes after the tower is assembled to the main material length, and record it as the maximum bending ratio, where, when the analysis main material is bent, the straight-line distance between the main material nodes corresponding to the two ends of the analysis main material before the analysis main material is bent is recorded as the main material length, and the straight-line distance between the main material nodes corresponding to the two ends of the analysis main material after the analysis main material is bent is recorded as the main material bending length; In the specific implementation process, the maximum bending ratio can be set according to the actual acceptance specifications of the main materials in the transmission tower. In this embodiment, the maximum bending ratio used in the subsequent analysis is 0.9867; for example, in a data analysis, the main material nodes and their corresponding analysis main materials are obtained. Figure 3As shown in PT1, ZJ is the main material node, ZC1 to ZC3 are all analysis main materials, and the main material node ZJ is obtained by welding ZC1 to ZC3; Obtain the maximum bending ratio corresponding to all analyzed main materials; in the tower model, perform k bending simulations on the main material nodes; after each bending simulation, mark the points where the main material nodes are located, and record the scatter plot composed of the marked points after all bending simulations as a bending scatter plot; The bending simulation is as follows: all the main materials corresponding to the main material nodes are bent, and for any main material, the ratio of the bending length of the main material corresponding to the main material to the main material length during the bending process is greater than or equal to the maximum bending ratio of the main material; In the specific implementation process, after ZC1 to ZC3 and PT1 corresponding to ZJ are obtained based on the above welding, after a period of bending simulation, the analysis main material corresponding to ZC2 is deformed, resulting in the positional relationship between ZJ, ZC1, ZC2 and ZC3 at this time as shown below. Figure 4 As shown in PT2, through analysis, it can be obtained that for ZC2, the main material length is Figure 3 The length of LL1 in PT1, the bending length of the main material is Figure 4 The length of LL2 in PT2 is calculated by dividing LL2 by LL1 to be 0.9888, which is greater than the maximum bending ratio. Therefore, this bending simulation is valid. However, after the bending simulation, the position of ZJ changes. Please refer to Figure 5 As shown in PT3, where ZJ1 is Figure 3 The position of ZJ in the middle, ZJ2 is Figure 4 The location of the middle ZJ; For a total of j groups of main material nodes, perform k bending simulations on each group and obtain the corresponding bending scatter plots for each group; place all the bending scatter plots corresponding to the j groups in the same bending coordinate system, and record the irregular body obtained by fitting all the scattered points in the bending coordinate system as the point offset body corresponding to the main material node; In the specific implementation process, the values ​​of j and k can be determined by the number of bending simulations that can be performed in actual application. In this embodiment, the values ​​of j and k are set to 10 and 5, respectively. By obtaining the point offset body, the movable range of each node in the tower when the main material structure changes can be obtained based on the deformation range of the main material in the tower under normal conditions, so that in subsequent analysis, the overall deformation of the transmission tower can be effectively analyzed based on the position changes of the nodes composed of the main materials, thereby obtaining the state of the transmission tower when it is abnormal and the distribution of each node when it is abnormal, so as to timely monitor when the transmission tower has abnormal deformation.

[0019] The tower tilt simulation module is used to simulate the tilt of the tower model based on the point offset body corresponding to each node, and obtain the tilt range area and dangerous tilt area corresponding to the tower based on the tilt simulation results; obtain the node distribution corresponding to the dangerous tilt area based on the tilt simulation and record it as the dangerous node distribution; The tower tilt simulation module includes a tower tilt simulation unit, which is configured with a tower tilt simulation strategy. The tower tilt simulation strategy includes: Based on the height of the tower, the maximum deviation of the tower's inclination is obtained, recorded as β, and the product of α and β is recorded as the maximum deviation angle; Performing a tilt simulation on the tower model, the tilt simulation includes: randomly updating the positions of all main material nodes in the tower model to any position within the point offset body corresponding to the main material node, and adjusting the lengths of all analysis main materials corresponding to the main material node based on the updated position of the main material node and the positional relationship between the main material node and the adjacent main material nodes; for any analysis main material, the length of the adjusted analysis main material is less than or equal to the main material length corresponding to the analysis main material; The tower model obtained after updating the positions of all main material nodes and adjusting the lengths of all main materials is recorded as the tilt simulation model; the line connecting the bottom center point and the top center point in the tilt simulation model is recorded as the tilt vertical line, and the degree of the acute angle formed by the tilt vertical line and the standard vertical line at the bottom center point is recorded as the simulated tilt angle; In the specific implementation process, for example, during a data analysis, the obtained inclined vertical line and standard vertical line are as follows: Figure 6 As shown in QC and QB in FIG, in addition, plane XY is the XY plane in the spatial coordinate system, so the angle γ is the simulated inclination angle; by comparing the simulated inclination angle with the maximum deviation angle, it is possible to obtain the area where the transmission tower will be at risk of tilting when each node in the transmission tower is within the permitted range of movement, that is, the tilt prohibited area, and the area corresponding to the normal tilt of the transmission tower, that is, the tilt allowed area, so as to ensure that the tilt risk of the transmission tower can be monitored promptly and accurately in subsequent analysis even when each node in the transmission tower is within the permitted range of movement; When the simulated inclination angle is less than or equal to the maximum deviation angle, the area occupied by the tilt simulation model at this time is recorded as the tilt allowed area; when the simulated inclination angle is greater than the maximum deviation angle, the area occupied by the tilt simulation model at this time is recorded as the tilt prohibited area; Based on the method of obtaining the tilt simulation model, all the main material nodes in the tower model are randomly updated k times, and the tilt simulation model obtained after each position update of all the main material nodes is obtained; the tilt allowed area or tilt prohibited area corresponding to the k tilt simulation models is obtained, and the area obtained by overlapping all the tilt allowed areas is recorded as the tilt range area, and the area obtained by overlapping all the tilt prohibited areas is recorded as the tilt screening area; The area in the tilted screening area that does not overlap with the tilt range area is recorded as a dangerous tilt area; the tilted prohibited area with the largest volume overlapping with the dangerous tilt area among all the tilt prohibited areas is recorded as a dangerous analysis area, and the position data of all main material nodes in the tilt simulation model corresponding to the dangerous analysis area are recorded, and the distribution status of all main material nodes recorded is recorded as the dangerous node distribution; During the specific implementation process, the dangerous tilt area is the area where the transmission tower will exist when the tilt deviation of the transmission tower is higher than the maximum deviation angle. Therefore, by obtaining the dangerous analysis area and obtaining the distribution of dangerous nodes, it is possible to obtain the distribution status of each node in the transmission tower when the transmission tower is in the most risky tilt state and each node in the transmission tower is within the allowable range of activity. This allows for timely monitoring of abnormal deformation of the transmission tower based on the position of each node in the transmission tower.

[0020] The tower status monitoring module is used to monitor the real-time status of the transmission tower based on the distribution of dangerous nodes and sensors, where the sensors include tilt sensors and position sensors; The tower status monitoring module includes a tower status monitoring unit, which is configured with a tower status monitoring strategy. The tower status monitoring strategy includes: Based on the tilt sensor, the angle between the line connecting the bottom center point and the top center point of the tower and the ground is obtained in real time and recorded as the real-time tilt angle; When the difference between the real-time tilt angle and α is greater than the maximum deviation angle, a tower tilt danger warning is issued; When the difference between the real-time tilt angle and α is less than or equal to the maximum deviation angle, the position distribution status of all main material nodes in the tower is obtained based on the position sensor and recorded as the real-time node distribution; Based on the real-time node distribution, a model corresponding to the tower is built in the spatial coordinate system and recorded as the real-time tower model. When the real-time tower model coincides with the dangerous tilt area, a tower tilt danger warning is issued; In the specific implementation process, when the real-time tower model and the dangerous tilt area are arbitrarily overlapped, it means that even if the tilt angle of the transmission tower is within the normal range, the overall shape of the transmission tower is abnormal, causing it to overlap with the dangerous tilt area. Under normal circumstances, if the shape of the transmission tower is normal, then when the difference between the real-time tilt angle and α is less than or equal to the maximum deviation angle, the real-time tower model and the dangerous tilt area will not overlap. Therefore, it can be judged whether there is a risk of abnormal shape of the transmission tower. For any main material node, if its position in the real-time node distribution is the same as its position in the dangerous node distribution, the main material node is recorded as a potential danger node. When the number of potential danger nodes is greater than t, a tower deformation danger warning is issued, where t is half of the total number of main material nodes and is rounded down to the corresponding value. During the specific implementation process, the value of t is changed according to actual needs to ensure that timely warning can be issued when there is a risk in the tilt angle of the transmission tower.

[0021] Example 2, second aspect, please refer to Figure 2 As shown, the present application also provides a method for monitoring the status of a transmission tower, comprising the following steps: Step S1: Building a three-dimensional model of the transmission tower based on the model data of the transmission tower in the database, and recording it as the tower model; analyzing all the main materials corresponding to each node in the tower model based on the tower model, and obtaining the point offset body corresponding to each node based on the analysis results; Step S1 includes: step S101, based on the model data of the transmission tower in the database, building a three-dimensional model corresponding to the transmission tower in the spatial coordinate system, and recording it as a tower model, wherein the bottom plane of the tower model coincides with the XY plane, and the vertical coordinate of the highest point of the tower model is greater than 0; Step S102: obtain the minimum circumscribed circle that completely encloses the bottom plane of the tower model in the XY plane of the spatial coordinate system, and record it as the bottom circle of the tower; record the center of the bottom circle of the tower as the bottom center point, and record the highest point of the tower model as the top center point; record the line connecting the bottom center point and the top center point at this time as the standard vertical line, and record the angle less than or equal to 90° formed by the standard vertical line and the XY plane as α.

[0022] Step S1 further includes: step S103, marking all nodes formed by the intersection of main materials in the tower model and recording them as main material nodes; performing tilt analysis on each main material node using a tilt analysis method, and obtaining a point offset body corresponding to each main material node based on the analysis result; The tilt analysis method includes: step S1031, for any main material node in the tower model: the main materials constituting the main material node are recorded as analysis main materials FZ1 to analysis main materials FZ b, where b is a positive integer greater than or equal to 2; based on the acceptance specifications for transmission towers, obtain the maximum value of the ratio of the main material bending length corresponding to the main material of the analysis main material between adjacent main material nodes after the tower is assembled to the main material length, and record it as the maximum bending ratio, where, when the analysis main material is bent, the straight-line distance between the main material nodes corresponding to the two ends of the analysis main material before the analysis main material is bent is recorded as the main material length, and the straight-line distance between the main material nodes corresponding to the two ends of the analysis main material after the analysis main material is bent is recorded as the main material bending length; Step S1032: Obtain the maximum bending ratio corresponding to all analyzed main materials; in the tower model, perform k bending simulations on the main material nodes; after each bending simulation, mark the points where the main material nodes are located, and record a scatter plot consisting of the marked points after all bending simulations as a bending scatter plot; Step S1033, bending simulation is as follows: all analysis main materials corresponding to the main material node are bent, and for any analysis main material, the ratio of the main material bending length corresponding to the analysis main material to the main material length during the bending process is greater than or equal to the maximum bending ratio corresponding to the analysis main material.

[0023] The tilt analysis method also includes: step S1034, performing k bending simulations on each of the j groups of main material nodes, and obtaining the bending scatter plot corresponding to each group; placing all the bending scatter plots corresponding to the j groups in the same bending coordinate system, and recording the irregular body obtained by fitting all the scattered points in the bending coordinate system as the point offset body corresponding to the main material node.

[0024] Step S2: performing a tilt simulation on the tower model based on the point offset body corresponding to each node, and obtaining the tilt range area and the dangerous tilt area corresponding to the tower based on the tilt simulation results; obtaining the node distribution corresponding to the dangerous tilt area based on the tilt simulation, and recording it as the dangerous node distribution; Step S2 includes: step S201, based on the height of the tower, obtaining the maximum deviation of the inclination of the tower allowed, recorded as β, and recording the product of α and β as the maximum deviation angle; Step S202, performing tilt simulation on the tower model, the tilt simulation includes: step S2021, randomly updating the positions of all main material nodes in the tower model to any position in the point offset body corresponding to the main material node, and adjusting the lengths of all analysis main materials corresponding to the main material node based on the updated position of the main material node and the positional relationship between the main material node and the adjacent main material nodes; for any analysis main material, the length of the adjusted analysis main material is less than or equal to the main material length corresponding to the analysis main material.

[0025] The tilt simulation further includes: step S2022, recording the tower model obtained after updating the positions of all main material nodes and adjusting the lengths of all main materials as the tilt simulation model; recording the line connecting the bottom center point and the top center point in the tilt simulation model as the tilt vertical line, and recording the degree of the acute angle formed by the tilt vertical line and the standard vertical line at the bottom center point as the simulated tilt angle; Step S2023: When the simulated tilt angle is less than or equal to the maximum deviation angle, the area occupied by the tilt simulation model at this time is recorded as the tilt allowed area; when the simulated tilt angle is greater than the maximum deviation angle, the area occupied by the tilt simulation model at this time is recorded as the tilt prohibited area; Step S2024: Based on the method for obtaining the tilt simulation model, randomly update the positions of all main material nodes in the tower model k times, and obtain the tilt simulation models obtained after the positions of all main material nodes are updated each time; obtain the tilt allowed areas or tilt prohibited areas corresponding to the k tilt simulation models, and record the area obtained by overlapping all the tilt allowed areas as the tilt range area, and record the area obtained by overlapping all the tilt prohibited areas as the tilt to be screened area; Step S2025, record the area in the inclined area to be screened that does not overlap with the inclined range area as a dangerous inclined area; among all the inclined prohibited areas, the inclined prohibited area with the largest volume overlapping with the dangerous inclined area is recorded as a dangerous analysis area, and record the position data of all main material nodes in the inclined simulation model corresponding to the dangerous analysis area, and record the distribution status of all main material nodes obtained by recording as the dangerous node distribution.

[0026] Step S3, monitoring the real-time status of the transmission tower based on the distribution of dangerous nodes and sensors, wherein the sensors include tilt sensors and position sensors; Step S3 includes: step S301, based on the tilt sensor, obtaining in real time the angle formed by the line connecting the bottom center point and the top center point of the tower and the ground, and recording it as the real-time tilt angle; Step S302: When the difference between the real-time tilt angle and α is greater than the maximum deviation angle, a tower tilt danger warning is issued; Step S303: When the difference between the real-time tilt angle and α is less than or equal to the maximum deviation angle, the position distribution status of all main material nodes in the tower is obtained based on the position sensor and recorded as the real-time node distribution; Step S304, based on the real-time node distribution in the spatial coordinate system, a model corresponding to the tower is built, and is recorded as a real-time tower model. When the real-time tower model and the dangerous tilt area exist any overlap, the tower tilt danger warning is sent. For any one main material node, when the position of the main material node in the real-time node distribution is the same as the position in the dangerous node distribution, the main material node is recorded as a hidden danger node. When the number of hidden danger nodes is greater than t, the tower deformation danger warning is sent, wherein t is half of the total number of main material nodes and the corresponding value is rounded down.

[0027] Embodiment 3, please refer to Figure 7 as shown, Figure 7 An example of a structural diagram of an electronic device, which can include: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface, the memory complete the communication among each other through the communication bus. The memory stores computer readable instructions, and the processor can call the instructions in the memory. When the computer readable instructions are executed by the processor, the steps in the power transmission tower state monitoring method are run to realize the following functions: first, based on the model data of the power transmission tower in the database, a three-dimensional model corresponding to the power transmission tower is built, and is recorded as a tower model; based on the tower model, all main materials corresponding to each node in the tower model are analyzed, and based on the analysis result, a point offset body corresponding to each node is obtained; then, based on the point offset body corresponding to each node, the tower model is simulated to tilt, and based on the result of the tilt simulation, the tilt range area and the dangerous tilt area corresponding to the tower are obtained; based on the tilt simulation, the node distribution corresponding to the dangerous tilt area is obtained, and is recorded as a dangerous node distribution; finally, based on the dangerous node distribution and the real-time state of the power transmission tower monitored by the sensor, wherein the sensor includes an inclination sensor and a position sensor.

[0028] In addition, the logical instructions in the memory described above can be realized in the form of a software functional unit and sold or used as an independent product, which can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or part of the technical solutions can be embodied in the form of a software product, which is stored in a storage medium, including a plurality of instructions to make a computer device (which can be a personal computer, server, or network device, etc.) execute all or part of the steps of the method described in various embodiments of the present application. The foregoing storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and various program code storage media.

[0029] Example 4. The present application also provides a computer-readable storage medium. The present application provides a storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps in the above transmission tower status monitoring method are run to achieve the following functions: first, a three-dimensional model corresponding to the transmission tower is built based on the model data of the transmission tower in the database, and recorded as the tower model; based on the tower model, all main materials corresponding to each node in the tower model are analyzed, and the point offset body corresponding to each node is obtained based on the analysis result; then, the tower model is tilted based on the point offset body corresponding to each node, and the tilt range area and dangerous tilt area corresponding to the tower are obtained based on the result of the tilt simulation; the node distribution corresponding to the dangerous tilt area is obtained based on the tilt simulation, and recorded as the dangerous node distribution; finally, the real-time status of the transmission tower is monitored based on the dangerous node distribution and sensors, wherein the sensors include tilt sensors and position sensors.

[0030] Through the description of the above embodiments, the embodiments of the present invention can be provided as methods, systems, or computer program products. Based on this understanding, the essence of the above technical solutions or the portion that contributes to the prior art can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, or an optical disk, and includes a number of instructions for enabling a computer device (such as a personal computer, server, or network device) to execute the methods described in various embodiments or certain portions of the embodiments.

[0031] In the embodiments provided in this application, it should be understood that the disclosed system or method can be implemented in other ways. The embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules or units can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of systems, modules and units can be electrical, mechanical or other forms.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for monitoring the status of a transmission tower, characterized in that: The steps include: Based on the model data of the transmission tower in the database, a three-dimensional model corresponding to the transmission tower is constructed and recorded as the tower model; based on the tower model, all main materials corresponding to each node in the tower model are analyzed, and based on the analysis results, a point offset body corresponding to each node is obtained; Perform tilt simulation on the tower model based on the point offset body corresponding to each node, and obtain the tilt range area and dangerous tilt area corresponding to the tower based on the results of the tilt simulation; Based on the tilt simulation, the node distribution corresponding to the dangerous tilt area is obtained and recorded as the dangerous node distribution; The real-time status of the transmission tower is monitored based on the distribution of dangerous nodes and sensors, wherein the sensors include tilt sensors and position sensors.

2. A method for monitoring the state of a transmission tower according to claim 1, characterized in that: Based on the model data of the transmission tower in the database, a three-dimensional model corresponding to the transmission tower is constructed and recorded as a tower model; Based on the tower model, all main materials corresponding to each node in the tower model are analyzed, and based on the analysis results, the point offset body corresponding to each node is obtained, including: Based on the model data of the transmission tower in the database, a three-dimensional model corresponding to the transmission tower is constructed in the spatial coordinate system and recorded as the tower model, wherein the bottom plane of the tower model coincides with the XY plane, and the vertical coordinate of the highest point of the tower model is greater than 0; In the XY plane of the spatial coordinate system, obtain the minimum circumscribed circle that completely encloses the bottom plane of the tower model, and record it as the bottom circle of the tower; record the center of the bottom circle of the tower as the bottom center point, and record the highest point of the tower model as the top center point; record the line connecting the bottom center point and the top center point at this time as the standard vertical line, and record the angle less than or equal to 90° formed by the standard vertical line and the XY plane as α.

3. A method for monitoring the state of a transmission tower according to claim 2, characterized in that: Analyzing all main materials corresponding to each node in the tower model based on the tower model, and obtaining the point offset body corresponding to each node based on the analysis results also includes: All nodes formed by the intersection of main materials in the tower model are marked and recorded as main material nodes; the tilt analysis method is used to perform tilt analysis on each main material node, and the point offset body corresponding to each main material node is obtained based on the analysis results.

4. A method for monitoring the state of a transmission tower according to claim 3, characterized in that: Tilt analysis methods include: For any main material node in the tower model: the main materials constituting the main material node are recorded as analysis main materials FZ1 to analysis main materials FZ b , where b is a positive integer greater than or equal to 2; based on the acceptance specifications for transmission towers, obtain the maximum value of the ratio of the main material bending length corresponding to the main material of the analysis main material between adjacent main material nodes after the tower is assembled to the main material length, and record it as the maximum bending ratio, where, when the analysis main material is bent, the straight-line distance between the main material nodes corresponding to the two ends of the analysis main material before the analysis main material is bent is recorded as the main material length, and the straight-line distance between the main material nodes corresponding to the two ends of the analysis main material after the analysis main material is bent is recorded as the main material bending length; Obtain the maximum bending ratio corresponding to all analyzed main materials; in the tower model, perform k bending simulations on the main material nodes; after each bending simulation, mark the points where the main material nodes are located, and record the scatter plot composed of the marked points after all bending simulations as a bending scatter plot; The bending simulation is as follows: all analysis main materials corresponding to the main material node are bent, and for any analysis main material, the ratio of the main material bending length corresponding to the analysis main material to the main material length during the bending process is greater than or equal to the maximum bending ratio corresponding to the analysis main material.

5. A method for monitoring the state of a transmission tower according to claim 4, characterized in that: Tilt analysis also includes: For a total of j groups of main material nodes, k bending simulations are performed on each group, and the corresponding bending scatter plot of each group is obtained; all the bending scatter plots corresponding to the j groups are placed in the same bending coordinate system, and the irregular body obtained by fitting all the scattered points in the bending coordinate system is recorded as the point offset body corresponding to the main material node.

6. A method for monitoring the state of a transmission tower according to claim 5, characterized in that: Perform tilt simulation on the tower model based on the point offset body corresponding to each node, and obtain the tilt range area and dangerous tilt area corresponding to the tower based on the results of the tilt simulation; Based on the tilt simulation, the node distribution corresponding to the dangerous tilt area is obtained and recorded as the dangerous node distribution, including: Based on the height of the tower, the maximum deviation of the tower's inclination is obtained, recorded as β, and the product of α and β is recorded as the maximum deviation angle; The tower model is subjected to tilt simulation, which includes: randomly updating the positions of all main material nodes in the tower model to any position in the point offset body corresponding to the main material node, and adjusting the lengths of all analysis main materials corresponding to the main material node based on the updated position of the main material node and the positional relationship between the main material node and the adjacent main material nodes; for any analysis main material, the length of the adjusted analysis main material is less than or equal to the main material length corresponding to the analysis main material.

7. A method for monitoring the state of a transmission tower according to claim 6, characterized in that: Tilt simulation also includes: The tower model obtained after updating the positions of all main material nodes and adjusting the lengths of all main materials is recorded as the tilt simulation model; the line connecting the bottom center point and the top center point in the tilt simulation model is recorded as the tilt vertical line, and the degree of the acute angle formed by the tilt vertical line and the standard vertical line at the bottom center point is recorded as the simulated tilt angle; When the simulated inclination angle is less than or equal to the maximum deviation angle, the area occupied by the tilt simulation model at this time is recorded as the tilt allowed area; when the simulated inclination angle is greater than the maximum deviation angle, the area occupied by the tilt simulation model at this time is recorded as the tilt prohibited area.

8. A method for monitoring the state of a transmission tower according to claim 7, characterized in that: Tilt simulation also includes: Based on the method of obtaining the tilt simulation model, all the main material nodes in the tower model are randomly updated k times, and the tilt simulation model obtained after each position update of all the main material nodes is obtained; the tilt allowed area or tilt prohibited area corresponding to the k tilt simulation models is obtained, and the area obtained by overlapping all the tilt allowed areas is recorded as the tilt range area, and the area obtained by overlapping all the tilt prohibited areas is recorded as the tilt screening area; The area in the inclined screening area that does not overlap with the inclined range area is recorded as a dangerous inclined area; among all the inclined prohibited areas, the inclined prohibited area with the largest volume overlapping with the dangerous inclined area is recorded as a dangerous analysis area, and the position data of all main material nodes in the inclined simulation model corresponding to the dangerous analysis area are recorded, and the distribution status of all main material nodes obtained by recording is recorded as the dangerous node distribution.

9. A method for monitoring the state of a transmission tower according to claim 8, characterized in that: Real-time status monitoring of transmission towers based on the distribution of dangerous nodes and sensors includes: Based on the tilt sensor, the angle between the line connecting the bottom center point and the top center point of the tower and the ground is obtained in real time and recorded as the real-time tilt angle; When the difference between the real-time tilt angle and α is greater than the maximum deviation angle, a tower tilt danger warning is issued; When the difference between the real-time tilt angle and α is less than or equal to the maximum deviation angle, the position distribution status of all main material nodes in the tower is obtained based on the position sensor and recorded as the real-time node distribution; Based on the real-time node distribution, a model corresponding to the tower is built in the spatial coordinate system and recorded as the real-time tower model. When there is any overlap between the real-time tower model and the dangerous tilt area, a tower tilt danger warning is issued; for any main material node, when the position of the main material node in the real-time node distribution is the same as the position in the dangerous node distribution, the main material node is recorded as a hidden danger node; when the number of hidden danger nodes is greater than t, a tower deformation danger warning is issued, where t is half of the total number of main material nodes and is rounded down to the corresponding value.

10. A transmission tower condition monitoring system, used to implement a transmission tower condition monitoring method according to any one of claims 1 to 9, characterized in that: Including tower node analysis module, tower tilt simulation module and tower status monitoring module; The tower node analysis module is used to build a three-dimensional model corresponding to the transmission tower based on the model data of the transmission tower in the database, and record it as the tower model; based on the tower model, all the main materials corresponding to each node in the tower model are analyzed, and based on the analysis results, the point offset body corresponding to each node is obtained; The tower tilt simulation module is used to simulate the tilt of the tower model based on the point offset body corresponding to each node, and obtain the tilt range area and dangerous tilt area corresponding to the tower based on the results of the tilt simulation; Based on the tilt simulation, the node distribution corresponding to the dangerous tilt area is obtained and recorded as the dangerous node distribution; The tower status monitoring module is used to monitor the real-time status of the transmission tower based on the distribution of dangerous nodes and sensors, where the sensors include tilt sensors and position sensors.

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