A safety performance evaluation method, device and equipment of a power transmission line crossing crossing and a storage medium

Abstract

The application discloses a kind of safety performance evaluation methods of transmission line crossing span, including steps: obtaining the target crossing span section type corresponding to crossing span section in transmission line;In the preset digital twin three-dimensional model database, the crossing span structure knowledge graph corresponding to target crossing span section type is obtained, and the preset digital twin three-dimensional model database is used to save the corresponding relationship between target crossing span section type and crossing span structure knowledge graph;According to the monitoring structure data of crossing span section, the safety of crossing span section is evaluated by crossing span section structure safety model according to monitoring structure data, and the safety evaluation result is output.The application also discloses corresponding device, equipment and storage medium.Implementation of the present application can improve the accuracy and timeliness of safety performance evaluation result.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power transmission line safety evaluation, and in particular to a power transmission line crossing span safety performance evaluation method, device, equipment and storage medium. BACKGROUND

[0002] The crossing span section of the power transmission line refers to the part crossing the road, railway, tunnel and other important infrastructure. These areas usually face more complex environmental factors and external interference, resulting in greater safety hazards. For example, in the road, railway and tunnel crossing area, the safety distance between the ground wire and the crossing object may change due to natural disasters, environmental changes or equipment aging, and the deformation and fatigue of the tower may also affect the stability of the entire power transmission system. Therefore, it is particularly important to comprehensively and accurately evaluate the performance of the crossing span section. Through systematic monitoring and evaluation, potential safety problems can be found in time, and scientific basis can be provided for maintenance, reconstruction and emergency management.

[0003] At present, the performance evaluation of the crossing span section is mainly performed by using multiple monitoring devices to obtain real-time monitoring data, and performing data preprocessing such as denoising and filtering on the monitoring data collected by the sensors, and then performing performance evaluation on the crossing span section based on the preprocessed data. However, the above method has serious limitations in accuracy and timeliness of the performance evaluation result because it ignores the characteristics of the crossing span section and the complex relationship between different monitoring data. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a power transmission line crossing span safety performance evaluation method, device, equipment and storage medium. The accuracy and timeliness of the performance evaluation result can be improved.

[0005] To solve the above technical problems, the present application provides the following technical solutions: as a first aspect of the present application, a power transmission line crossing span safety performance evaluation method, the method comprising: obtaining a target crossing span section type corresponding to a crossing span section in a power transmission line, the crossing span section type including a highway crossing section, a tunnel crossing section and a railway crossing section; obtaining a crossing span structure knowledge graph corresponding to the target crossing span section type in a preset digital twin three-dimensional model database, the preset digital twin three-dimensional model database being used to save the correspondence between the target crossing span section type and the crossing span structure knowledge graph; obtaining monitoring structure data of the crossing span section according to the crossing span structure knowledge graph; and performing safety evaluation on the crossing span section by a crossing span section structure safety model according to the monitoring structure data, and outputting a safety evaluation result.

[0006] Optionally, before obtaining the crossing span structure knowledge graph corresponding to the target crossing span type from the preset digital twin three-dimensional model database, the crossing span structure knowledge graph needs to be constructed, specifically including: obtaining historical design data of the crossing span, the historical design data including structural design drawing data, load calculation data and construction record data; obtaining the correlation characteristics between the historical design data, and constructing the crossing span structure knowledge graph corresponding to the crossing span according to the correlation characteristics.

[0007] Optionally, the monitoring structure data of the crossing span is obtained according to the crossing span structure knowledge graph, specifically including: obtaining a plurality of performance evaluation item types corresponding to the crossing span according to the crossing span structure knowledge graph; obtaining target monitoring structure data corresponding to each performance evaluation item type, and taking a set of the plurality of target monitoring structure data as the monitoring structure data.

[0008] Optionally, the performance evaluation item types include a ground wire mechanical performance evaluation item, a distance evaluation item between the ground wire and the crossing span object, and a tower deformation evaluation item, and the target monitoring structure data corresponding to each performance evaluation item type is obtained, specifically including: obtaining ground wire material property data, ground wire load data, ground wire geometric measurement data, ground wire spatial position data, tower displacement monitoring data and soil property data according to the crossing span structure knowledge graph; when the performance evaluation item type is the ground wire mechanical performance evaluation item, calculating ground wire mechanical performance data according to the ground wire material property data and the ground wire load data; when the performance evaluation item type is the tower deformation evaluation item, calculating distance data between the ground wire and the crossing span object according to the ground wire geometric measurement data and the ground wire spatial position data; when the performance evaluation item type is the tower deformation evaluation item, calculating tower deformation monitoring data according to the tower displacement monitoring data and the soil property data; taking the calculated ground wire mechanical performance data, distance data between the ground wire and the crossing span object, and tower deformation monitoring data as the target monitoring structure data corresponding to each performance evaluation item type, respectively.

[0009] Optionally, the crossing span is safety evaluated by the crossing span structure safety model according to the monitoring structure data, and a safety evaluation result is output, specifically including: judging whether there is safety performance abnormal data in the monitoring structure data; if there is safety performance abnormal data in the monitoring structure data, outputting the safety evaluation result as crossing span performance abnormality; if there is no safety performance abnormal data in the monitoring structure data, outputting the safety evaluation result as crossing span performance normality.

[0010] Optionally, it is judged whether there is safety performance abnormal data in the monitoring structure data, specifically including: calculating a comprehensive performance evaluation value corresponding to the cross-over section by crossing the cross-over section structure safety model and calculating the distance data between the ground wire and the cross-over object and the tower deformation monitoring data according to the ground wire mechanical performance data and the ground wire spatial position data; judging whether the comprehensive performance evaluation value is greater than a preset evaluation threshold; if the comprehensive performance evaluation value is greater than the preset evaluation threshold, it is confirmed that there is safety performance abnormal data in the monitoring structure data, and the safety evaluation result is output as cross-over section performance abnormality; if the comprehensive performance evaluation value is less than or equal to the preset evaluation threshold, it is confirmed that there is no safety performance abnormal data in the monitoring structure data, and the safety evaluation result is output as cross-over section performance normality.

[0011] Optionally, the comprehensive performance evaluation value corresponding to the cross-over section is calculated, specifically including: calculating the comprehensive performance evaluation value by the following formula:

[0012] A total = W1·A1+W2·A2+W3·A3;

[0013]

[0014] Wherein, F is the ground wire mechanical performance data, D is the distance data between the ground wire and the cross-over object, and S is the tower deformation monitoring data, then A1, A2, A3 are the performance evaluation values corresponding to the ground wire mechanical performance data, the distance data between the ground wire and the cross-over object and the tower deformation monitoring data respectively, W1, W2, W3 are the comprehensive performance evaluation weights corresponding to different monitoring structure data respectively, F hist,i is the i-th historical ground wire mechanical performance data, k is the sensitivity threshold, D min is the minimum design distance between the ground wire and the cross-over object, D max is the maximum design distance between the ground wire and the cross-over object, S ′ is the tower deformation tolerance, S hist,j is the j-th different type of historical tower deformation monitoring data, j is the total number of types of historical tower deformation monitoring data, ω j is the weight corresponding to the j-th type of historical tower deformation monitoring data.

[0015] In the second aspect of the application, a safety performance evaluation device for a power transmission line cross-over is provided, the device includes an acquisition module and a processing module, wherein,

[0016] The acquisition module is configured to acquire a target crossing span type corresponding to a crossing span in a power transmission line, the crossing span type including a highway crossing span, a tunnel crossing span, and a railway crossing span; acquire a crossing span structure knowledge graph corresponding to the target crossing span type in a preset digital twin three-dimensional model database, the preset digital twin three-dimensional model database being configured to save a corresponding relationship between the target crossing span type and the crossing span structure knowledge graph; and acquire monitoring structure data of the crossing span according to the crossing span structure knowledge graph.

[0017] The processing module is configured to perform safety evaluation on the crossing span by using a crossing span structure safety model according to the monitoring structure data, and output a safety evaluation result.

[0018] As a third aspect of the present application, an electronic device is also provided, which includes a processor, a memory, a user interface, and a network interface, the memory is configured to store instructions, the user interface and the network interface are configured to communicate with other devices, and the processor is configured to execute the instructions stored in the memory to enable the electronic device to perform the method of any one of the above.

[0019] As a fourth aspect of the present application, a computer readable storage medium is also provided, which stores a computer program, and the computer program is configured to enable a processor to perform the method of any one of the above.

[0020] The embodiments of the present application have the following beneficial effects:

[0021] The present application provides a safety performance evaluation method, device, and equipment for a crossing span of a power transmission line, and a storage medium. The method includes the following steps: acquiring a target crossing span type corresponding to a crossing span in a power transmission line; acquiring a crossing span structure knowledge graph corresponding to the target crossing span type in a preset digital twin three-dimensional model database, the preset digital twin three-dimensional model database being configured to save a corresponding relationship between the target crossing span type and the crossing span structure knowledge graph; acquiring monitoring structure data of the crossing span according to the crossing span structure knowledge graph; and performing safety evaluation on the crossing span by using a crossing span structure safety model according to the monitoring structure data, and outputting a safety evaluation result. Thus, the correlation between different monitoring structure data is constructed by using the crossing span structure knowledge graph, and the monitoring structure data with correlation is comprehensively evaluated by using the crossing span structure safety model, thereby improving the accuracy and comprehensiveness of safety evaluation.

[0022] In the present application, the historical design data of the crossing span is acquired, and the crossing span structure knowledge graph is constructed according to the correlation between the historical design data, so that various types of historical data can be systematically integrated, and a comprehensive structure model can be constructed based on the mutual relationship between the data, so that the subsequent calculation result is more comprehensive and accurate.

[0023] In the present application, by crossing the span structure safety model, and according to the ground wire mechanical property data, the ground wire spatial position data, the distance data between the ground wire and the crossing span, and the tower deformation monitoring data are calculated, the corresponding comprehensive performance evaluation value of the crossing span is calculated, whether the key parameters such as the ground wire mechanical property, the spatial position, the safe distance of the crossing span, and the tower deformation exceed the safety range is comprehensively judged, and the overall safety of the crossing span is comprehensively evaluated, and the potential risk factors are identified in time. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings obtained according to these drawings without creative labor are still within the scope of the present application.

[0025] Figure 1 is a main flowchart of an embodiment of a safety performance evaluation method of a power transmission line crossing span provided by the present application;

[0026] Figure 2 is a module schematic diagram of an embodiment of a safety performance evaluation device of a power transmission line crossing span provided by the present application;

[0027] Figure 3 is a structure schematic diagram of an embodiment of an electronic device provided by the present application.

[0028] Figure legend: 21, acquisition module; 22, processing module; 301, processor; 302, communication bus; 303, user interface; 304, network interface; 305, memory. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings.

[0030] As shown in Figure 1 , a flowchart of a safety performance evaluation method of a power transmission line crossing span provided by the present application is shown, and the flowchart mainly includes the following steps: S101 to S104.

[0031] Step S101, the target crossing span type corresponding to the crossing span in the power transmission line is acquired, and the crossing span type includes highway crossing span, tunnel crossing span and railway crossing span.

[0032] Specifically, when performing the safety evaluation operation on the crossing span section in the power transmission line, the target crossing span section type corresponding to the crossing span section to be evaluated is obtained, and the step is as follows: through a geographic information system (GIS) or other spatial data tools, the coordinate information of the road section where the power transmission line is located is obtained, and based on the coordinate information of the power transmission line, it is identified which line sections belong to the crossing span section, and the crossing span section type includes but is not limited to: highway crossing section, tunnel crossing section, railway crossing section, etc., and the target crossing span section type is any one of the above listed crossing span section types. In identifying the target crossing span section type, the specific crossing span section type of each location can also be saved in the database in advance, so as to facilitate obtaining the target crossing span section type corresponding to each crossing span section in the database when performing the safety evaluation operation.

[0033] Step S102, obtaining the crossing span structure knowledge graph corresponding to the target crossing span section type in the preset digital twin three-dimensional model database, the preset digital twin three-dimensional model database is used to save the corresponding relationship between the target crossing span section type and the crossing span structure knowledge graph.

[0034] Specifically, the preset digital twin three-dimensional model database is a cloud database constructed in advance, which is used to store all types of crossing span section classes, crossing span structure knowledge graphs, and the corresponding relationship between each type of crossing span section and the crossing span structure knowledge graph. One crossing span section type corresponds to one crossing span structure knowledge graph.

[0035] In one possible implementation, step S102 further includes: obtaining historical design data of the crossing span section, the historical design data including structural design drawing data, load calculation data, and construction record data; obtaining the correlation characteristics between the historical design data, and constructing the crossing span structure knowledge graph corresponding to the crossing span section according to the correlation characteristics.

[0036] Specifically, before constructing the preset digital twin three-dimensional model database, it is necessary to construct the cross-span structure knowledge graph corresponding to different types of cross-span sections. The construction steps are as follows: collect historical design data for each type of cross-span section, including but not limited to: structural design drawing data, extract structural drawings from design drawings, ensure that the size, material, load-carrying capacity, etc. of the cross-span object are covered; load calculation data: obtain the load calculation results of each cross-span object under different load conditions, such as the maximum load of the bridge, the pressure distribution of the tunnel, etc.; construction record data: organize the data recorded during the construction process, ensure that the construction method of the cross-span object, the materials used, the construction time, the construction quality, etc. are accurately recorded, etc. Then, clean the collected historical design data, remove duplicate and irrelevant data, and unify the data format. Through statistical analysis, clustering, etc. extract the correlation features in the historical design data. For example, by analyzing the differences between design drawings and actual construction records, key factors affecting safety can be extracted, by calculating the correlation between data, the correlation features between different design data, load calculation data and construction record data can be identified, for example, analyzing the matching degree between load calculation data and the load-carrying capacity in design drawings, or the relationship between the materials used in construction records and the actual structure performance. Through historical design data and the correlation features between historical design data, the structure attribute model corresponding to different types of cross-span sections is established, for example, highway cross-span section model: a model is constructed for highway cross-span section, including road type, load standard, bridge material, design specification, etc.; tunnel cross-span section model: a model is constructed for tunnel cross-span section, including tunnel type (highway tunnel or railway tunnel), structure material, excavation method, support design, compression resistance, etc.; railway cross-span section model: a model is constructed for railway cross-span section, including bridge design, train load, track type, structure material, etc. Define the key entities and attributes of the cross-span structure knowledge graph: define the key entities of the cross-span structure according to the collected design and construction data, such as "bridge", "tunnel", "railway", etc.; define the attributes of each entity, for example: bridge: length, span, load capacity, material, design specification, etc.; tunnel: depth, width, excavation method, material, pressure resistance standard, etc.; railway: train load, bridge support type, track design, etc.; relationship definition: determine the connection relationship between different entities. For example, the relationship between bridge and load standard, tunnel and excavation method. Based on the above defined entities, attributes and connection relationships, construct the cross-span structure knowledge graph: use graph database or semantic network modeling tools to construct the knowledge graph of the cross-span structure.Each type of crossing span section (highway, tunnel, railway) will be a top-level entity, associated with different attributes, design standards, historical data and actual monitoring data, creating node representations of entities (such as "Tunnel A" and "Railway Bridge B") and edges representing relationships between entities (such as "connected to" or "using materials") in the graph. Each crossing span section type (such as highway, tunnel, and railway) will correspond to a complete structural knowledge graph, containing design data, load calculation data, construction record data, and other related information.

[0037] Step S103, obtaining monitoring structural data of the crossing span section according to the crossing span structure knowledge graph.

[0038] Specifically, according to the complete crossing span structure knowledge graph corresponding to each crossing span section type created in step S102, a plurality of performance evaluation project types corresponding to the crossing span section are obtained through the crossing span structure knowledge graph, including but not limited to: ground wire mechanical performance evaluation project, distance between ground wire and crossing span, tower deformation evaluation project, etc. Then, through the above-mentioned crossing span structure knowledge graph, the relevant target monitoring structural data of each performance evaluation project type is obtained, and the set of multiple target monitoring structural data is taken as the monitoring structural data. The specific steps are as follows: obtaining ground wire material property data, ground wire load data, ground wire geometric measurement data, ground wire spatial position data, tower displacement monitoring data, and soil property data according to the crossing span structure knowledge graph; when the performance evaluation project type is the ground wire mechanical performance evaluation project, calculating the ground wire mechanical performance data according to the ground wire material property data and the ground wire load data; when the performance evaluation project type is the tower deformation evaluation project, calculating the distance data between the ground wire and the crossing span according to the ground wire geometric measurement data and the ground wire spatial position data; when the performance evaluation project type is the tower deformation evaluation project, calculating the tower deformation monitoring data according to the tower displacement monitoring data and the soil property data; taking the calculated ground wire mechanical performance data, distance data between the ground wire and the crossing span, and tower deformation monitoring data as the target monitoring structural data corresponding to each performance evaluation project type, respectively.

[0039] Step S104, according to the monitoring structural data, performing safety evaluation on the crossing span section through the crossing span section structure safety model, and outputting the safety evaluation result.

[0040] Specifically, a cross-span section structure safety model is constructed, and it is judged through the cross-span section structure safety model whether there is safety performance abnormal data in the monitoring structure data. If there is safety performance abnormal data in the monitoring structure data, the safety evaluation result is output as cross-span section performance abnormality. If there is no safety performance abnormal data in the monitoring structure data, the safety evaluation result is output as cross-span section performance normality.

[0041] In a possible implementation, the step S104 further includes: constructing a cross-span section structure safety model, and calculating distance data between the ground wire and the cross-span object and tower deformation monitoring data according to the ground wire mechanical performance data and the ground wire spatial position data, and calculating a comprehensive performance evaluation value corresponding to the cross-span section; judging whether the comprehensive performance evaluation value is greater than a preset evaluation threshold value; if the comprehensive performance evaluation value is greater than the preset evaluation threshold value, it is confirmed that there is safety performance abnormal data in the monitoring structure data, and the safety evaluation result is output as cross-span section performance abnormality; if the comprehensive performance evaluation value is less than or equal to the preset evaluation threshold value, it is confirmed that there is no safety performance abnormal data in the monitoring structure data, and the safety evaluation result is output as cross-span section performance normality.

[0042] Specifically, a physical and engineering calculation-based crossing span structure safety model is constructed, which is modeled according to the ground wire mechanical performance, the distance data between the ground wire and the crossing span, and the tower deformation monitoring data, to reflect the working state and safety of different crossing spans, ground wires, and towers. Using the monitoring structure data obtained from the crossing span, including ground wire mechanical performance data, ground wire spatial position data, tower deformation monitoring data, etc., the crossing span structure safety model is calculated. These data include but are not limited to: ground wire mechanical performance data: through the characteristics of the ground wire material, strength, load, etc., whether it can withstand the current load is calculated. Distance data between the ground wire and the crossing span: whether the safety distance between the ground wire and the surrounding objects (such as bridges, tunnels, roads, railways, etc.) meets the design standard is calculated. Tower deformation monitoring data: based on the tower deformation monitoring data, whether there is deformation exceeding the safety tolerance, whether it affects the structural stability is calculated. The above data is substituted into the crossing span structure safety model, and a comprehensive performance evaluation value (for example, by weighted average or other appropriate calculation method) is calculated, which reflects the safety state of the entire crossing span. The comprehensive performance evaluation value is a numerical value obtained by comprehensively considering all key parameters, which represents the safety of the crossing span in the current state. According to the preset safety evaluation threshold, it is judged whether the comprehensive performance evaluation value calculated is greater than the safety evaluation threshold. If the evaluation value is greater than the safety evaluation threshold, it means that there is a safety performance anomaly; if the evaluation value is less than or equal to the safety evaluation threshold, it means that the safety performance is normal, wherein the safety evaluation threshold can be a safety standard determined based on historical data, design standards or industry regulations, and the embodiments in the present application do not limit the setting of the safety evaluation threshold. Output the safety evaluation result: if the comprehensive performance evaluation value is greater than the evaluation threshold, it means that the crossing span has a safety performance anomaly, and the safety evaluation result is output as "performance anomaly"; if the comprehensive performance evaluation value is less than or equal to the evaluation threshold, it means that the safety performance of the crossing span is normal, and the safety evaluation result is output as "performance normal".

[0043] In one possible implementation, the step S104 further includes: the calculation step of the comprehensive performance evaluation value is as follows: the comprehensive performance evaluation value is calculated by the following formula:

[0044] A total = W1·A1+W2·A2+W3·A3;

[0045]

[0046] Wherein, F is the ground wire mechanical property data, D is the distance data between the ground wire and the crossing span, S is the tower deformation monitoring data, A1, A2, A3 are the performance evaluation values corresponding to the ground wire mechanical property data, the distance data between the ground wire and the crossing span, and the tower deformation monitoring data respectively, W1, W2, W3 are the comprehensive performance evaluation weights corresponding to different monitoring structure data respectively, F hist,i is the i-th historical ground wire mechanical property data, k is the sensitivity threshold, D min is the minimum design distance between the ground wire and the crossing span, D max is the maximum design distance between the ground wire and the crossing span, S ′ is the tower deformation tolerance, S hist,j is the j-th historical tower deformation monitoring data of different types, j is the total number of types of historical tower deformation monitoring data, ω j is the weight corresponding to the j-th type of historical tower deformation monitoring data.

[0047] Specifically, by calculating the comprehensive performance evaluation value, it is reflected whether the key safety parameters such as the distance between the ground wire and the ground wire and the cross-over object and the tower deformation exceed the safety range, helping to evaluate whether there is a potential safety risk in the cross-over section, wherein A1, A2, A3 respectively correspond to the performance evaluation values corresponding to three different performance evaluation item types. In order to facilitate the description, only the comprehensive calculation method of three different performance evaluation item types is given, but in the scheme of the present application, not only the evaluation of the above three performance evaluation item types is performed, the cross-over section may involve more performance evaluation item types, for example: ground wire electrical performance evaluation item: evaluate whether the electrical characteristics of the ground wire meet the standard, such as whether the parameters such as voltage, ground resistance, etc. are normal; environmental condition influence evaluation item: including the influence of temperature, humidity, wind power and other environmental factors on the ground wire and tower, to judge whether it is within the safe working range; earthquake and meteorological disaster evaluation item: evaluate the influence of possible earthquakes and extreme weather conditions (such as strong wind, heavy snow, etc.) on the safety of the cross-over section; cross-over object (such as road, railway, tunnel, etc.) bearing capacity evaluation item: judge whether the cross-over object can bear the pressure of the ground wire and other loads to ensure that damage does not occur. If it is confirmed in the evaluation process that there are other performance evaluation item types in the cross-over section, the corresponding performance evaluation values need to be calculated according to the results of these additional evaluation items and included in the comprehensive performance evaluation calculation. For example: for the ground wire electrical performance evaluation item, the electrical performance deviation can be calculated, and the standard threshold of the electrical performance is set by a method similar to A1, assuming that A4, and it is judged whether the electrical performance meets the specification. At this time, if the weight corresponding to the standard threshold of the electrical performance is W4, then W1-W4 needs to be reasonably adjusted, so that the comprehensive performance evaluation value is more accurate. After the evaluation values of these additional performance evaluation items are calculated, the final comprehensive performance evaluation value will include all related evaluation item values, not limited to the three existing evaluation items. According to the comprehensive performance evaluation value, a comprehensive safety analysis and risk assessment of the cross-over section can be performed to ensure its safety and reliability under various environmental and load conditions.

[0048] The application obtains the target crossing span type corresponding to the crossing span in the power transmission line by using the above method; obtains the crossing span structure knowledge graph corresponding to the target crossing span type in the preset digital twin three-dimensional model database, the preset digital twin three-dimensional model database is used to save the corresponding relationship between the target crossing span type and the crossing span structure knowledge graph; obtains the monitoring structure data of the crossing span according to the crossing span structure knowledge graph; and performs safety evaluation on the crossing span through the crossing span structure safety model according to the monitoring structure data, and outputs the safety evaluation result, so as to construct the correlation between different monitoring structure data through the crossing span structure knowledge graph, and comprehensively evaluate the monitoring structure data with correlation through the crossing span structure safety model, thereby improving the accuracy and comprehensiveness of safety evaluation.

[0049] Please refer to Figure 2 which shows a module schematic diagram of a safety performance evaluation device for a power transmission line crossing span provided by an embodiment of the application, the device comprising an obtaining module 21 and a processing module 22, wherein,

[0050] The obtaining module 21 is configured to obtain the target crossing span type corresponding to the crossing span in the power transmission line, the crossing span type comprising a highway crossing span, a tunnel crossing span and a railway crossing span; obtain the crossing span structure knowledge graph corresponding to the target crossing span type in the preset digital twin three-dimensional model database, the preset digital twin three-dimensional model database being used to save the corresponding relationship between the target crossing span type and the crossing span structure knowledge graph; and obtain the monitoring structure data of the crossing span according to the crossing span structure knowledge graph.

[0051] The processing module 22 is configured to perform safety evaluation on the crossing span through the crossing span structure safety model according to the monitoring structure data, and output the safety evaluation result.

[0052] In a possible implementation, the obtaining module 21 is configured to construct the crossing span structure knowledge graph before obtaining the crossing span structure knowledge graph corresponding to the target crossing span type in the preset digital twin three-dimensional model database, and the construction specifically comprises: obtaining the historical design data of the crossing span, the historical design data comprising structure design drawing data, load calculation data and construction record data; obtaining the correlation characteristics between the historical design data, and constructing the crossing span structure knowledge graph corresponding to the crossing span according to the correlation characteristics.

[0053] In a possible implementation, the acquisition module 21 is configured to acquire the monitoring structure data of the cross-span section according to the cross-span structure knowledge graph, and specifically includes: acquiring, according to the cross-span structure knowledge graph, a plurality of performance evaluation item types corresponding to the cross-span section; acquiring target monitoring structure data corresponding to each performance evaluation item type, and taking a set of the plurality of target monitoring structure data as the monitoring structure data.

[0054] In a possible implementation, the performance evaluation item types include a ground wire mechanical performance evaluation item, a distance evaluation item between the ground wire and the cross-span object, and a tower deformation evaluation item, the acquisition module 21 is configured to acquire the target monitoring structure data corresponding to each performance evaluation item type, and specifically includes: acquiring, according to the cross-span structure knowledge graph, ground wire material characteristic data, ground wire load data, ground wire geometric measurement data, ground wire spatial position data, tower displacement monitoring data, and soil characteristic data; when the performance evaluation item type is the ground wire mechanical performance evaluation item, calculating ground wire mechanical performance data according to the ground wire material characteristic data and the ground wire load data; when the performance evaluation item type is the tower deformation evaluation item, calculating distance data between the ground wire and the cross-span object according to the ground wire geometric measurement data and the ground wire spatial position data; when the performance evaluation item type is the tower deformation evaluation item, calculating tower deformation monitoring data according to the tower displacement monitoring data and the soil characteristic data; and taking the calculated ground wire mechanical performance data, the distance data between the ground wire and the cross-span object, and the tower deformation monitoring data as the target monitoring structure data corresponding to each performance evaluation item type, respectively.

[0055] In a possible implementation, the processing module 22 is configured to perform safety evaluation on the cross-span section by using a cross-span section structure safety model according to the monitoring structure data, and output a safety evaluation result, and specifically includes: judging whether there is safety performance abnormal data in the monitoring structure data; if there is safety performance abnormal data in the monitoring structure data, outputting the safety evaluation result as cross-span section performance abnormality; and if there is no safety performance abnormal data in the monitoring structure data, outputting the safety evaluation result as cross-span section performance normality.

[0056] In a possible implementation, the processing module 22 is configured to determine whether there is safety performance abnormal data in the monitoring structure data, specifically including: calculating a comprehensive performance evaluation value corresponding to the crossing span section by crossing the span structure safety model and according to the ground wire mechanical performance data, the distance data between the ground wire and the crossing span, and the tower deformation monitoring data; determining whether the comprehensive performance evaluation value is greater than a preset evaluation threshold; if the comprehensive performance evaluation value is greater than the preset evaluation threshold, it is determined that there is safety performance abnormal data in the monitoring structure data, and a safety evaluation result of crossing span section performance abnormality is output; if the comprehensive performance evaluation value is less than or equal to the preset evaluation threshold, it is determined that there is no safety performance abnormal data in the monitoring structure data, and a safety evaluation result of crossing span section performance normality is output.

[0057] In a possible implementation, the processing module 22 is configured to calculate the comprehensive performance evaluation value corresponding to the crossing span section, specifically including: calculating the comprehensive performance evaluation value by the following formula:

[0058] A total = W1·A1 + W2·A2 + W3·A3;

[0059]

[0060]

[0061] wherein F is the ground wire mechanical performance data, D is the distance data between the ground wire and the crossing span, and S is the tower deformation monitoring data, A1, A2, and A3 are performance evaluation values corresponding to the ground wire mechanical performance data, the distance data between the ground wire and the crossing span, and the tower deformation monitoring data respectively, W1, W2, and W3 are comprehensive performance evaluation weights corresponding to different monitoring structure data respectively, F hist,i is the i-th historical ground wire mechanical performance data, k is a sensitivity threshold, D min is the minimum design distance between the ground wire and the crossing span calculated according to the ground wire spatial position data, D max is the maximum design distance between the ground wire and the crossing span calculated according to the ground wire spatial position data, S ′ is the tower deformation tolerance, S hist,j is the j-th historical tower deformation monitoring data of different types, j is the total number of types of historical tower deformation monitoring data, ω j is the weight corresponding to the j-th type of historical tower deformation monitoring data.

[0062] It should be noted that the apparatus provided in the above examples is only used as an example for the division of the above functional modules in realizing the functions thereof, and in actual applications, the above functions can be completed by different functional modules according to the needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above-described functions. In addition, the apparatus and method embodiments provided in the above examples belong to the same concept, and the specific implementation process is detailed in the method embodiments, which will not be described here.

[0063] The present application also provides an electronic device. Referring to Figure 3 , Figure 3 is a structural schematic diagram of an electronic device provided by an embodiment of the present application. The electronic device can include at least one processor 301, at least one communication bus 302, a user interface 303, at least one network interface 304, and a memory 305.

[0064] The communication bus 302 is used to realize the connection and communication between the components.

[0065] The user interface 303 can include a display screen (Display), a camera (Camera), and optionally a standard wired interface and a wireless interface.

[0066] The network interface 304 can optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).

[0067] The processor 301 can include one or more processing cores. The processor 301 connects various parts within the server through various interfaces and lines, performs various functions of the server and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 305, and calling data stored in the memory 305. Alternatively, the processor 301 can be implemented in at least one of a hardware form of a digital signal processing (DSP), a field-programmable gate array (FPGA), and a programmable logic array (PLA). The processor 301 can integrate a combination of one or several of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. Among them, the CPU mainly processes operating systems, user interfaces, and application programs; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; and the modem is used for processing wireless communication. It can be understood that the above-mentioned modem can also not be integrated into the processor 301, but can be realized by a separate chip.

[0068] The memory 305 can include a random access memory (RAM) and can also include a read-only memory (ROM). Optionally, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 305 can include a program storage area and a data storage area, wherein the program storage area can store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area can store data involved in the above-mentioned various method embodiments, etc. The memory 305 can also be at least one storage device located away from the aforementioned processor 301. Referring to Figure 3 The memory 305 as a computer storage medium can include an operating system, a network communication module, a user interface module, and a safety performance evaluation application program of power line cross-over.

[0069] In Figure 3The user interface 303 is mainly used to provide an interface for the user to input, and obtain data input by the user. The processor 301 can be used to call the safety performance evaluation application program of the power line crossing stored in the memory 305, and when executed by one or more processors 301, the electronic device is caused to perform the method described in one or more of the above embodiments. It should be noted that, for the foregoing method embodiments, in order to simply describe, they are all described as a series of action combinations, but those skilled in the art should know that the present application is not limited to the action sequence described, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0070] The present application also provides a computer-readable storage medium, which stores instructions. When executed by one or more processors, the electronic device is caused to perform the method described in one or more of the above embodiments.

[0071] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0072] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other manners. For example, the described device embodiments are merely schematic. For example, the division of the units is only a logical function division. There can be another division manner for the actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or in other forms.

[0073] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. they can be located in one place, or distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0074] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically, or two or more units can be integrated into one unit. The integrated unit can be implemented in the form of hardware, or in the form of a software functional unit.

[0075] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable memory. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product, which is stored in a memory and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method of each embodiment of the present application. The aforementioned memory includes: a U disk, a mobile hard disk, a magnetic disk or an optical disk and various program code storage media.

[0076] The embodiments of the present application have the following beneficial effects:

[0077] The present application provides a kind of safety performance evaluation method, device and equipment of transmission line crossing crossing and storage medium. By obtaining the target crossing crossing section type corresponding to the crossing crossing section in transmission line;In the preset digital twin three-dimensional model database, the crossing crossing structure knowledge graph corresponding to the target crossing crossing section type is obtained, and the preset digital twin three-dimensional model database is used to save the corresponding relationship between target crossing crossing section type and crossing crossing structure knowledge graph;According to the monitoring structure data of crossing crossing section, the safety of crossing crossing section is evaluated by crossing crossing section structure safety model according to monitoring structure data, and the safety evaluation result is output, so that the correlation between different monitoring structure data is constructed by crossing crossing structure knowledge graph, and the monitoring structure data with correlation is comprehensively evaluated by crossing crossing section structure safety model, and then the precision and comprehensiveness of safety evaluation are improved.

[0078] In the present application, the historical design data of the crossing crossing section is obtained, and the crossing crossing structure knowledge graph is constructed according to the correlation characteristics between the historical design data, so that the various historical data can be systematically integrated, and the comprehensive structure model is constructed based on the mutual relationship between the data, so that the subsequent calculation result is more comprehensive and accurate.

[0079] In the present application, the crossing crossing section structure safety model is used to calculate the distance data between the ground wire and the crossing crossing object and the tower deformation monitoring data according to the ground wire mechanical performance data and the ground wire spatial position data, and the comprehensive performance evaluation value corresponding to the crossing crossing section is calculated, so that whether the key parameters such as ground wire mechanical performance, spatial position, safe distance of crossing object and tower deformation exceed the safety range is comprehensively judged, and the overall safety of the crossing crossing section is comprehensively evaluated, and the potential risk factors are identified in time.

[0080] The above merely provides the preferred embodiment of the present application, and cannot allude the protection scope of the present application, therefore, any equivalent changes made according to the claims of the present application shall be within the scope of the present application.

Claims

1. A method for assessing the safety performance of power transmission line crossings, characterized in that, The method includes: Obtain the target crossing segment type corresponding to the crossing segment in the transmission line, wherein the crossing segment type includes highway crossing segment, tunnel crossing segment and railway crossing segment; Obtain the cross-crossing structure knowledge graph corresponding to the target cross-crossing segment type from the preset digital twin 3D model database. The preset digital twin 3D model database is used to store the correspondence between the target cross-crossing segment type and the cross-crossing structure knowledge graph. The monitoring structure data of the crossing segment are obtained based on the knowledge graph of the crossing structure. Based on the monitored structural data, a safety assessment of the crossing section is performed using the cross-span structural safety model, and the safety assessment results are output. Specifically, obtaining the monitoring structure data of the crossing segment based on the knowledge graph of the crossing structure includes: Based on the cross-span structure knowledge graph, obtain multiple performance evaluation item types corresponding to the cross-span segment; Obtain the target monitoring structure data corresponding to each of the performance evaluation item types, and use the collection of multiple target monitoring structure data as the monitoring structure data; wherein, the monitoring structure data includes: conductor and ground wire mechanical performance data, distance data between the conductor and ground wire and the crossing object, and tower deformation monitoring data; Specifically, the step of conducting a safety assessment of the crossing section based on the monitored structural data using a structural safety model and outputting the safety assessment results includes: Determine whether there is any abnormal safety performance data in the monitored structure data; If the monitoring structure data contains the abnormal safety performance data, the safety assessment result is output as abnormal performance of the crossing section. If no abnormal safety performance data is found in the monitored structure data, the safety assessment result is output as "the cross-span section is in normal performance".

2. The method according to claim 1, characterized in that, Before obtaining the cross-crossing structure knowledge graph corresponding to the target cross-crossing segment type from the preset digital twin 3D model database, it is necessary to construct the cross-crossing structure knowledge graph, specifically including: Obtain the historical design data of the crossing section, including structural design drawings, load calculation data, and construction record data; Obtain the correlation characteristics between the historical design data, and construct the cross-span structure knowledge graph corresponding to the cross-span segment based on the correlation characteristics.

3. The method according to claim 2, characterized in that, The performance evaluation items include conductor and ground wire mechanical performance evaluation, distance evaluation between conductor and ground wire and crossing objects, and tower deformation evaluation. Acquiring the target monitoring structure data corresponding to each performance evaluation item type specifically includes: Based on the knowledge graph of the cross-span structure, obtain conductor and ground wire material property data, conductor and ground wire load data, conductor and ground wire geometric measurement data, conductor and ground wire spatial location data, tower displacement monitoring data, and soil property data; When the performance evaluation item type is the conductor-ground wire mechanical performance evaluation item, the conductor-ground wire mechanical performance data is calculated based on the conductor-ground wire material characteristic data and the conductor-ground wire load data; when the performance evaluation item type is the pole-tower deformation evaluation item, the distance data between the conductor-ground wire and the crossing object is calculated based on the conductor-ground wire geometric measurement data and the conductor-ground wire spatial position data; when the performance evaluation item type is the pole-tower deformation evaluation item, the pole-tower deformation monitoring data is calculated based on the pole-tower displacement monitoring data and the soil characteristic data. The calculated mechanical performance data of the conductor, the distance data between the conductor and the crossing object, and the tower deformation monitoring data are used as the corresponding target monitoring structure data for each performance evaluation item type.

4. The method according to claim 3, characterized in that, The determination of whether there is any abnormal security performance data in the monitored structure data specifically includes: The comprehensive performance evaluation value of the crossing section is calculated by using the structural safety model of the crossing section and based on the mechanical performance data of the conductor and ground wire, the distance data between the conductor and ground wire and the crossing object, and the tower deformation monitoring data. Determine whether the overall performance evaluation value is greater than a preset evaluation threshold; If the comprehensive performance evaluation value is greater than the preset evaluation threshold, it is confirmed that there is abnormal safety performance data in the monitoring structure data, and the safety evaluation result is output as abnormal performance of the crossing section. If the comprehensive performance evaluation value is less than or equal to the preset evaluation threshold, it is confirmed that there is no abnormal safety performance data in the monitoring structure data, and the safety evaluation result is output as the cross-span section performance is normal.

5. The method according to claim 4, characterized in that, The calculation of the comprehensive performance evaluation value corresponding to the crossing segment specifically includes: The comprehensive performance evaluation value is calculated using the following formula: A total =W1·A1+W2·A2+W3·A3; Where F represents the mechanical performance data of the conductor / ground wire, D represents the distance data between the conductor / ground wire and the crossing object, and S represents the tower deformation monitoring data, then A1, A2, and A3 are the performance evaluation values ​​corresponding to the mechanical performance data of the conductor / ground wire, the distance data between the conductor / ground wire and the crossing object, and the tower deformation monitoring data, respectively, and W1, W2, and W3 are the comprehensive performance evaluation weights corresponding to different monitoring structure data, F hist,i Let be the mechanical performance data of the i-th historical conductor / ground wire, k be the sensitivity threshold, and D be the ground wire. min D is the minimum design distance between the ground wire and the crossing point. max S is the maximum design distance between the ground wire and the crossing point. ′ For the tower deformation tolerance, S hist,j For the j-th different type of historical tower deformation monitoring data, j is the total number of types of historical tower deformation monitoring data, ω j The weight is the weight corresponding to the historical tower deformation monitoring data of the j-th type.

6. A safety performance evaluation device for power transmission line crossings, characterized in that, The device includes an acquisition module and a processing module, wherein, The acquisition module is used to acquire the target crossing segment type corresponding to the crossing segment in the transmission line, the crossing segment type including highway crossing segment, tunnel crossing segment and railway crossing segment; acquire the crossing structure knowledge graph corresponding to the target crossing segment type from a preset digital twin 3D model database, the preset digital twin 3D model database is used to store the correspondence between the target crossing segment type and the crossing structure knowledge graph; and acquire the monitoring structure data of the crossing segment according to the crossing structure knowledge graph. The processing module is used to perform a safety assessment of the crossing section based on the monitored structural data and the cross-span structural safety model, and output the safety assessment results. In the acquisition module, the monitoring structure data of the crossing segment is obtained based on the cross-span structure knowledge graph in the following manner: Based on the cross-span structure knowledge graph, obtain multiple performance evaluation item types corresponding to the cross-span segment; Obtain the target monitoring structure data corresponding to each of the performance evaluation item types, and use the collection of multiple target monitoring structure data as the monitoring structure data; wherein, the monitoring structure data includes: conductor and ground wire mechanical performance data, distance data between the conductor and ground wire and the crossing object, and tower deformation monitoring data; In the processing module, based on the monitored structural data, a safety assessment of the crossing section is performed using a structural safety model, and the safety assessment results are output: Determine whether there is any abnormal safety performance data in the monitored structure data; If the monitoring structure data contains the abnormal safety performance data, the safety assessment result is output as abnormal performance of the crossing section. If no abnormal safety performance data is found in the monitored structure data, the safety assessment result is output as "the cross-span section is in normal performance".

7. An electronic device, characterized in that, The device includes a processor, a communication bus, a user interface, a network interface, and a memory. The memory is used to store instructions. The user interface and the network interface are used to communicate with other devices. The processor is used to execute the instructions stored in the memory to cause the electronic device to perform the method as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores instructions that, when executed, perform the method as described in any one of claims 1 to 5.

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