Evaluation Method and System for Bearing Characteristics of Transmission Line Hardware in Extreme Environments

Abstract

The present application relates to a method and system for evaluating the load-bearing characteristics of transmission line fittings in extreme environments, including collecting a true three-dimensional model of a real fitting image of a transmission line fitting in the environment where the transmission line fitting is located; comparing the true three-dimensional model of the fitting with a reference three-dimensional model of the fitting to obtain the defect positions on the true three-dimensional model of the fitting; statistically analyzing and classifying the defect positions; creating environmental parameter generation conditions for standard defect positions; superimposing the generation environmental parameters on a simulated three-dimensional model of the fitting to obtain a deformed three-dimensional model of the fitting; comparing the simulated three-dimensional model of the fitting with the deformed three-dimensional model of the fitting to determine the load-bearing capacity on the simulated three-dimensional model of the fitting. The method and system for evaluating the load-bearing characteristics of transmission line fittings in extreme environments disclosed in the present application can evaluate the load-bearing characteristics of transmission line fittings in complex environments by means of simulation combined with comparison.

Description

Technical Field

[0001] The present application relates to the technical field, and in particular, to a method and system for evaluating the bearing characteristics of transmission line fittings under extreme environments. Background Art

[0002] As an important component connecting transmission conductors and poles, transmission line fittings play a crucial role in the safe and stable operation of overhead transmission lines. The failure of any one fitting will cause the transmission conductor to fall, thus affecting the entire power grid system. With the further intensification of the El Niño phenomenon and the La Nina phenomenon, the service environment of transmission line fittings deteriorates, and the requirements for fittings are further improved.

[0003] Therefore, there is an urgent need to propose an effective method to evaluate the bearing characteristics of fittings in complex environments. When transmission line fittings are impacted, they will exhibit strong geometric nonlinearity and material nonlinearity. Conventional methods are difficult to effectively simulate the movement process of fittings. The finite element simulation method can well handle nonlinear problems in complex situations and can efficiently calculate the influence of complex loads and working conditions in the real environment on fittings. However, simply performing finite element simulation has a high calculation cost, complex modeling, and limited ability to handle nonlinear problems, with certain limitations. Summary of the Invention

[0004] The present application provides a method and system for evaluating the bearing characteristics of transmission line fittings under extreme environments, which can evaluate the bearing characteristics of transmission line fittings in complex environments through a simulation and comparison combination method.

[0005] The above object of the present application is achieved through the following technical solutions:

[0006] In a first aspect, the present application provides a method for evaluating the bearing characteristics of transmission line fittings under extreme environments, including:

[0007] Collecting real three-dimensional models of real fittings in the environment where the transmission line fittings are located, and the number of real three-dimensional models of real fittings is the same as and corresponds one-to-one to the number of target fittings;

[0008] Comparing the real three-dimensional model of the real fitting with the reference three-dimensional model of the fitting and obtaining the defect positions on the real three-dimensional model of the real fitting;

[0009] Statistically analyzing and classifying the defect positions to obtain standard defect positions and random defect positions;

[0010] Creating generation environment parameters for the standard defect positions;

[0011] Superimposing the generation environment parameters on the simulated three-dimensional model of the fitting to obtain a deformed three-dimensional model of the fitting;

[0012] Compare the three-dimensional model of the simulated fitting with the three-dimensional model of the deformed fitting, and determine the bearing capacity on the three-dimensional model of the simulated fitting. The bearing capacity includes the deformation position and the amount of deformation.

[0013] In a possible implementation of the first aspect, the generation environment parameters for creating the standard defect position include:

[0014] Determine the force application points on the three-dimensional model of the simulated fitting and the potential force application directions at each force application point;

[0015] Perform simulations based on the force application points and the potential force application directions at each force application point to obtain the reference defect positions. During the simulation process, apply forces in the potential force application directions;

[0016] Compare the reference defect positions with the standard defect positions and determine the simulation direction until the difference between the reference defect positions and the standard defect positions is within the allowable range;

[0017] Use the force application points, the actual force application directions, and the force values at each force application point as the generation environment parameters.

[0018] In a possible implementation of the first aspect, performing simulations based on the force application points and the potential force application directions at each force application point includes:

[0019] Randomly select a force application point on the three-dimensional model of the fitting and a potential force application direction belonging to the force application point;

[0020] Assign a force value to the potential force application direction and determine the amount of deformation belonging to the force value;

[0021] Calculate the correlation between the amount of deformation and the standard defect position;

[0022] Determine a sub-generation environment parameter according to the correlation. A sub-generation environment parameter includes a force application point, a potential force application direction, and a force value.

[0023] In a possible implementation of the first aspect, when there is a correlation between the amount of deformation and the standard defect position, it further includes:

[0024] Determine the influence degree of the change in the potential force application direction or the force value on the correlation between the amount of deformation and the standard defect position;

[0025] Draw the influence degree change curve belonging to the influence degree and determine the change speed of the influence degree change curve;

[0026] When the change speed of the influence degree change curve is less than or equal to the set change speed, stop the change in the potential force application direction or the force value.

[0027] In a possible implementation of the first aspect, comparing the reference defect position and the standard defect position and determining the simulation direction includes:

[0028] Transfer the reference defect position and the standard defect position into the same coordinate system;

[0029] Create an analysis plane based on the reference defect position;

[0030] Calculate the change trends of the reference defect position and the standard defect position on the analysis plane;

[0031] When the change trends of the reference defect position and the standard defect position on the analysis plane are the largest, use the analysis plane as the plane where the force direction is located.

[0032] In a possible implementation of the first aspect, when creating the analysis plane based on the reference defect position for the first time, adjacent analysis planes are set in parallel;

[0033] When multiple analysis planes can all be used as the simulation direction, it further includes:

[0034] Randomly rotate the analysis plane to make the change trend of the reference defect position belonging to the rotated analysis plane the largest;

[0035] Select the analysis plane with the largest change trend among the multiple analysis planes as the simulation direction;

[0036] Wherein, when rotating the analysis plane, make the multiple analysis planes have a reference line or a reference area.

[0037] In a second aspect, the present application provides a device for evaluating the bearing characteristics of transmission line fittings under extreme environments, including:

[0038] A first three-dimensional model creation unit, configured to collect a true three-dimensional model of a true fitting image in the environment where the transmission line fitting is located, and the number of true three-dimensional models of the true fitting is the same as and corresponds one-to-one to the number of target fittings;

[0039] A first processing unit, configured to compare the true three-dimensional model of the fitting with a reference three-dimensional model of the fitting and obtain the defect positions on the true three-dimensional model of the fitting;

[0040] A statistics and classification unit, configured to perform statistics and classification on the defect positions to obtain standard defect positions and random defect positions;

[0041] An environmental parameter generation unit, configured to create generation environmental parameters for the standard defect positions;

[0042] A second processing unit, configured to superimpose the generation environmental parameters on a simulated three-dimensional model of the fitting to obtain a deformed three-dimensional model of the fitting;

[0043] A third processing unit, configured to compare the three-dimensional model of the simulated fitting and the three-dimensional model of the deformed fitting, and determine the bearing capacity on the three-dimensional model of the simulated fitting, where the bearing capacity includes the deformation position and the amount of deformation.

[0044] In a third aspect, the present application provides a bearing characteristic evaluation system for transmission line fittings under extreme environments, where the system includes:

[0045] One or more memories, configured to store instructions; and

[0046] One or more processors, configured to call and run the instructions from the memory, and execute the method described in the first aspect and any possible implementation manner of the first aspect.

[0047] In a fourth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium includes:

[0048] A program, when the program is run by a processor, the method described in the first aspect and any possible implementation manner of the first aspect is executed.

[0049] In a fifth aspect, the present application provides a computer program product, including program instructions, when the program instructions are run by a computing device, the method described in the first aspect and any possible implementation manner of the first aspect is executed.

[0050] In a sixth aspect, the present application provides a chip system, the chip system includes a processor, configured to implement the functions involved in the above aspects, for example, generate, receive, send, or process the data and / or information involved in the above method.

[0051] The chip system may be composed of chips, or may include chips and other discrete devices.

[0052] In a possible design, the chip system further includes a memory, configured to store necessary program instructions and data. The processor and the memory may be decoupled, respectively disposed on different devices, and connected by a wired or wireless manner, or the processor and the memory may also be coupled on the same device. Description of the Drawings

[0053] Figure 1 is a schematic block diagram of the steps of a bearing characteristic evaluation method provided by the present application.

[0054] Figure 2 is a schematic diagram of performing finite element analysis on a power fitting provided by the present application.

[0055] Figure 3 is another schematic diagram of performing finite element analysis on a power fitting provided by the present application.

[0056] Figure 4 This is a schematic diagram of the principle for obtaining the reference defect position provided by this application.

[0057] Figure 5 This is a schematic diagram of the influence degree change curve obtained based on numerical adjustment provided by this application.

[0058] Figure 6 This is a schematic diagram of the influence degree change curve obtained based on direction adjustment provided by this application. Specific embodiments

[0059] The following further elaborates on the technical solutions in this application in conjunction with the accompanying drawings.

[0060] This application discloses a method for evaluating the load-bearing characteristics of transmission line fittings in extreme environments. Please refer to Figure 1 , in some examples, the method for evaluating the load-bearing characteristics of transmission line fittings in extreme environments disclosed in this application includes the following:

[0061] S101, collect the real three-dimensional models of the real fittings in the environment where the transmission line fittings are located. The number of the real three-dimensional models of the real fittings is the same as and corresponds one-to-one with the number of the target fittings;

[0062] S102, compare the real three-dimensional model of the real fitting with the reference three-dimensional model of the fitting and obtain the defect positions on the real three-dimensional model of the real fitting;

[0063] S103, statistically analyze and classify the defect positions to obtain the standard defect positions and random defect positions;

[0064] S104, create the generation environment parameters of the standard defect positions;

[0065] S105, superimpose the generation environment parameters on the simulated three-dimensional model of the fitting to obtain the deformed three-dimensional model of the fitting;

[0066] S106, compare the simulated three-dimensional model of the fitting with the deformed three-dimensional model of the fitting to determine the load-bearing capacity on the simulated three-dimensional model of the fitting. The load-bearing capacity includes the deformation positions and the amounts of deformation.

[0067] Overall, in step S101, it is necessary to first collect the real three-dimensional models of the real fittings in the environment where the transmission line fittings are located. The transmission line fittings here refer to the transmission line fittings that have been used in the real environment and whose shapes have changed, that is, the so-called deformation.

[0068] Next, in step S102, the three-dimensional model of the actual fitting is compared with the three-dimensional model of the reference fitting to obtain the defect positions on the three-dimensional model of the actual fitting. The three-dimensional model of the reference fitting refers to the three-dimensional model established using transmission line fittings that have not been used.

[0069] In Figure 2 and Figure 3 the defect positions are represented. There are two ways to represent the defect positions, namely color representation and shape representation. Because Figure 2 and Figure 3 the defect positions therein are not obvious, text is used for assistance. However, the defect positions here are only for representation and are not used as real defect positions.

[0070] By means of comparison, the defect positions on the three-dimensional model of the actual fitting can be determined. In this application, the defect positions refer to the parts on the three-dimensional model of the actual fitting that cannot coincide with the three-dimensional model of the reference fitting.

[0071] In addition, for the three-dimensional model of the actual fitting, generally, three-dimensional scanning is used for creation. For the three-dimensional model of the reference fitting, three-dimensional scanning can be used for creation, or the three-dimensional drawings of the transmission line fitting during the design process can be called as the three-dimensional model of the reference fitting.

[0072] In step S103, the defect positions are counted and classified. The purpose of counting and classification is to obtain standard defect positions and random defect positions. There are two ways to evaluate the standard defect positions and random defect positions. The first is whether the ratio of the occurrence times to the number of three-dimensional models of the actual fitting is greater than a set ratio value, and the second is whether the occurrence times are greater than a set number value.

[0073] The purpose of obtaining the standard defect positions and random defect positions is to determine whether the defects will definitely or probably occur. This is because the problem to be solved in this application is the load-bearing characteristics of transmission line fittings in extreme environments. When analyzing the load-bearing characteristics, it is necessary to first determine the standard defect positions and then conduct targeted analysis on the standard defect positions.

[0074] In step S104 and step S105, the generation environment parameters belonging to the standard defect positions are created, and then the generation environment parameters are superimposed on the three-dimensional model of the simulated fitting to obtain the three-dimensional model of the deformed fitting. Finally, in step S106, the three-dimensional model of the simulated fitting and the three-dimensional model of the deformed fitting are compared to determine the load-bearing capacity on the three-dimensional model of the simulated fitting. The load-bearing capacity includes the deformation position and the amount of deformation.

[0075] The three-dimensional model of the simulated fitting here refers to the newly designed power fitting that has not been put into use yet. Compared with the power fitting corresponding to the three-dimensional model of the real fitting mentioned in the previous text, the power fitting that has not been put into use has changed in local structure and internal characteristics, but without being investigated in the real environment, it is impossible to determine the real performance in the real environment of the changes in local structure and internal characteristics.

[0076] In the process of superimposing the generated environmental parameters on the three-dimensional model of the simulated fitting, the generated environmental parameters can also be grouped according to time, such as the three-year group, the five-year group, etc., and the generated environmental parameters can also be artificially amplified to simulate the bearing characteristics under extreme environments.

[0077] In some examples, the specific method for creating the generated environmental parameters of the standard defect position is as follows:

[0078] S201, determine the stress points on the three-dimensional model of the simulated fitting and the potential stress directions at each stress point;

[0079] S202, perform simulations based on the stress points and the potential stress directions at each stress point to obtain the reference defect positions, and apply forces in the potential stress directions during the simulation process;

[0080] S203, compare the reference defect positions with the standard defect positions and determine the simulation direction until the difference between the reference defect positions and the standard defect positions is within the allowable range;

[0081] S204, use the stress points and the actual stress directions and stress values at each stress point as the generated environmental parameters.

[0082] Please refer to Figure 4 , in steps S201 to S204, the stress points on the three-dimensional model of the simulated fitting ( Figure 3 represented by a straight line in ) and the potential stress directions at each stress point will be determined first. For the stress points, it is generally considered that they are at the middle position or in the middle position area of the standard defect position ( Figure 4 represented by a solid curve in ), and then the potential stress directions at the stress points are determined. The potential stress directions at the stress points generally face the opposite direction of the defect.

[0083] Then, simulations are performed based on the stress points and the potential stress directions at each stress point to obtain the reference defect positions ( Figure 4 represented by a dashed curve in ). Forces are applied in the potential stress directions during the simulation process. Of course, at this time, the reference defect positions and the standard defect positions cannot be exactly the same because the stress points are simplified in this application, while in the actual usage scenario, the number of stress points is multiple.

[0084] Therefore, it is necessary to compare the reference defect position with the standard defect position and determine the simulation direction until the difference between the reference defect position and the standard defect position is within the allowable range. Here, a certain tolerance is given to the force application point and the actual force application direction at each force application point.

[0085] In some possible implementation manners, a processing method of dividing the partial surface corresponding to the reference defect position can also be used, that is, dividing the partial surface corresponding to the reference defect position into multiple independent surfaces, and then separately calculating the force application point, the actual force application direction, and the force value for each surface. At this time, the generated environmental parameters obtained include multiple groups of force application points, actual force application directions, and force values.

[0086] The specific process of simulation based on the force application point and the potential force application direction at each force application point is as follows:

[0087] Randomly select a force application point and a potential force application direction belonging to the force application point on the three-dimensional fitting model;

[0088] Assign a force value to the potential force application direction and determine the deformation amount belonging to the force value;

[0089] Calculate the correlation between the deformation amount and the standard defect position;

[0090] Determine a sub-generated environmental parameter according to the correlation. A sub-generated environmental parameter includes a force application point, a potential force application direction, and a force value.

[0091] The correlation here refers to the degree of coincidence between the deformation amount and the standard defect position. Generally, a value is set, such as 0.8 - 0.9. The deformation amount will cause local deformation of the three-dimensional fitting model in simulation, and the similarity between the corresponding surface of the deformation and the standard defect position is the correlation.

[0092] When there is a correlation between the deformation amount and the standard defect position, the following method is used for processing:

[0093] Determine the influence degree of the change of the potential force application direction or the force value on the correlation between the deformation amount and the standard defect position;

[0094] Draw the influence degree change curve belonging to the influence degree and determine the change speed of the influence degree change curve;

[0095] When the change speed of the influence degree change curve is less than or equal to the set change speed, stop the change of the potential force application direction or the force value.

[0096] The purpose of this part of the content is to examine the relationship between the deformation amount and the position of the standard defect during the simulation process. By the change speed of the influence degree change curve belonging to the influence degree, the cut-off time can be determined, so as to avoid getting into an endless calculation process.

[0097] It should be understood that the change speed of the influence degree change curve generally experiences a process of changing from fast to slow. When the change speed of the influence degree change curve ( Figure 5 and Figure 6 as shown) is slow, the calculation can be terminated by setting cut-off conditions, so as to stop the processing process.

[0098] At the same time, in the above process, the direction adjustment and numerical adjustment of the force application point are also involved. At this time, by examining the change speed of the influence degree change curve, the direction adjustment and numerical adjustment of the force application point can also be examined. For example, when examining the direction of a certain force application point, the force application direction of the force application point can be initially determined by only adjusting the direction, and then the value for processing the force application point can be determined by numerical adjustment.

[0099] In some examples, the specific methods for comparing the reference defect position and the standard defect position and determining the simulation direction are as follows:

[0100] S301, transfer the reference defect position and the standard defect position into the same coordinate system;

[0101] S302, create an analysis plane based on the reference defect position;

[0102] S303, calculate the change trends of the reference defect position and the standard defect position on the analysis plane;

[0103] S304, when the change trends of the reference defect position and the standard defect position on the analysis plane are the largest, use the analysis plane as the plane where the force application direction is located.

[0104] In steps S301 to S304, the reference defect position and the standard defect position are transferred into the same coordinate system for processing. The specific processing process is to first create an analysis plane based on the reference defect position, and this analysis plane is applicable to both the reference defect position and the standard defect position.

[0105] Then, calculate the change trends of the reference defect position and the standard defect position on the analysis plane respectively. When the change trends of the reference defect position and the standard defect position on the analysis plane are the largest, use the analysis plane as the plane where the force application direction is located.

[0106] The change trend here refers to the approaching speed of the projection of the reference defect position on the analysis plane towards the projection of the standard defect position on the analysis plane. The number of analysis planes is multiple, so the approaching speed of the projection of the reference defect position on each analysis plane towards the projection of the standard defect position on the analysis plane can be calculated.

[0107] For the approaching speed, there are two indicators. The first indicator is the maximum distance between the projection of the reference defect position on the analysis plane and the projection of the standard defect position on the analysis plane, and the second indicator is the enclosed area of the projection of the reference defect position on the analysis plane and the projection of the standard defect position on the analysis plane.

[0108] The approaching speed refers to the change speed of the maximum distance or the change speed of the enclosed area mentioned above.

[0109] When creating the analysis plane, it is required that when creating the analysis plane based on the reference defect position for the first time, adjacent analysis planes are set in parallel.

[0110] When multiple analysis planes can all be used as the simulation direction, the following method is used for processing:

[0111] Randomly rotate the analysis plane to maximize the change trend of the reference defect position belonging to the rotated analysis plane;

[0112] Select the analysis plane with the largest change trend among multiple analysis planes as the simulation direction;

[0113] Among them, when rotating the analysis plane, make multiple analysis planes have a reference line or a reference area.

[0114] In the above content, one analysis plane is retained by the method of obtaining the largest change trend through rotation. At this time, if there are two or more analysis planes to be retained, then these two or more analysis planes all need to be retained.

[0115] When the direction of creating the analysis plane changes, a certain number of analysis planes can be obtained. At this time, these analysis planes are converted to be represented by line segments. One end of the line segment is located in the overlapping area between the analysis plane and the standard defect position. For this overlapping area, if the maximum distance processing method described above is used, one end of the line segment is located at the place where the maximum distance is located. If the enclosed area processing method is used, one end of the line segment is located at the lowest point of the enclosed area.

[0116] These line segments can enclose a region. At this time, the midpoint of this region can be used as the force application point.

[0117] This application also provides an evaluation device for the load-bearing characteristics of transmission line fittings under extreme environments, including:

[0118] The first 3D model creation unit is used to collect the real 3D models of real fitting images in the environment where the transmission line fittings are located. The number of real 3D models of real fittings is the same as and corresponds one by one to the number of target fittings;

[0119] The first processing unit is used to compare the real 3D model of the real fitting with the reference 3D model of the fitting and obtain the defect positions on the real 3D model of the real fitting;

[0120] The statistics and classification unit is used to statistically analyze and classify the defect positions to obtain standard defect positions and random defect positions;

[0121] The environmental parameter generation unit is used to create the generation environmental parameters of the standard defect positions;

[0122] The second processing unit is used to superimpose the generation environmental parameters on the simulated fitting 3D model to obtain the deformed fitting 3D model;

[0123] The third processing unit is used to compare the simulated fitting 3D model and the deformed fitting 3D model to determine the bearing capacity on the simulated fitting 3D model. The bearing capacity includes the deformation positions and the amounts of deformation.

[0124] Further, creating the generation environmental parameters of the standard defect positions includes:

[0125] Determining the force application points on the simulated fitting 3D model and the potential force application directions at each force application point;

[0126] Performing simulations based on the force application points and the potential force application directions at each force application point to obtain reference defect positions. During the simulation process, forces are applied in the potential force application directions;

[0127] Comparing the reference defect positions with the standard defect positions and determining the simulation directions until the difference degree between the reference defect positions and the standard defect positions is within the allowable range;

[0128] Using the force application points and the actual force application directions and force values at each force application point as the generation environmental parameters.

[0129] Further, performing simulations based on the force application points and the potential force application directions at each force application point includes:

[0130] Randomly selecting a force application point and a potential force application direction belonging to the force application point on the fitting 3D model;

[0131] Assigning a force value to the potential force application direction and determining the amount of deformation belonging to the force value;

[0132] Calculating the correlation relationship between the amount of deformation and the standard defect positions;

[0133] Determine a sub-generation environment parameter according to the association relationship. A sub-generation environment parameter includes a force application point, a potential force application direction, and a force value.

[0134] Further, when there is an association relationship between the deformation amount and the standard defect position, it further includes:

[0135] Determine the influence degree of the change in the potential force application direction or the force value on the association relationship between the deformation amount and the standard defect position;

[0136] Draw an influence degree change curve belonging to the influence degree and determine the change speed of the influence degree change curve;

[0137] When the change speed of the influence degree change curve is less than or equal to the set change speed, stop the change in the potential force application direction or the force value.

[0138] Further, comparing the reference defect position and the standard defect position and determining the simulation direction includes:

[0139] Transfer the reference defect position and the standard defect position into the same coordinate system;

[0140] Create an analysis plane based on the reference defect position;

[0141] Calculate the change trends of the reference defect position and the standard defect position on the analysis plane;

[0142] When the change trends of the reference defect position and the standard defect position on the analysis plane are the largest, use the analysis plane as the plane where the force application direction is located.

[0143] Further, when creating the analysis plane for the first time based on the reference defect position, the adjacent analysis planes are set in parallel;

[0144] When multiple analysis planes can all be used as the simulation direction, it further includes:

[0145] Randomly rotate the analysis plane to make the change trend of the reference defect position belonging to the rotated analysis plane the largest;

[0146] Select the analysis plane with the largest change trend among the multiple analysis planes as the simulation direction;

[0147] Among them, when rotating the analysis plane, make the multiple analysis planes have a reference line or a reference area.

[0148] In one example, the units in any of the above devices may be one or more integrated circuits configured to implement the above methods. For example: one or more application specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0149] For another example, when the units in the device can be implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call programs. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0150] In this application, names may be assigned to various objects such as various messages / information / devices / network elements / systems / devices / actions / operations / processes / concepts, etc. It can be understood that these specific names do not constitute a limitation on the relevant objects, and the assigned names may change with factors such as scenarios, contexts, or usage habits. The understanding of the technical meanings of the technical terms in this application should mainly be determined from the functions and technical effects they embody / perform in the technical solutions.

[0151] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again.

[0152] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0153] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or distributed over multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0154] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed in this article can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0155] It should also be understood that in various embodiments of this application, the first, second, etc. are only used to indicate that multiple objects are different. For example, the first time window and the second time window are only used to indicate different time windows. And it should not have any impact on the time window itself. The above first, second, etc. should not impose any restrictions on the embodiments of this application.

[0156] It should also be understood that in various embodiments of this application, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0157] If the above functions are implemented in the form of software function units and sold or used as an independent product, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a computer-readable storage medium and includes several 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 methods described in various embodiments of this application. The aforementioned computer-readable storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs that can store program codes.

[0158] This application also provides a bearing characteristic evaluation system for transmission line fittings in extreme environments. The system includes:

[0159] One or more memories for storing instructions; and

[0160] One or more processors, configured to call and run the instructions from the memory and execute the method described above.

[0161] This application also provides a computer program product, which includes instructions that, when executed, cause the terminal device and the network device to perform the operations of the terminal device and the network device corresponding to the above method.

[0162] This application also provides a chip system, which includes a processor configured to implement the functions involved above, for example, generating, receiving, sending, or processing the data and / or information involved in the above method.

[0163] The chip system may be composed of chips or may include chips and other discrete devices.

[0164] The processor mentioned anywhere above may be a CPU, a microprocessor, an ASIC, or an integrated circuit for controlling the execution of one or more programs for the method of transmitting the above feedback information.

[0165] In a possible design, the chip system further includes a memory configured to store necessary program instructions and data. The processor and the memory may be decoupled and disposed on different devices and connected by wire or wirelessly to support the chip system in implementing various functions in the above embodiments. Alternatively, the processor and the memory may also be coupled on the same device.

[0166] Optionally, the computer instructions are stored in the memory.

[0167] Optionally, the memory is a storage unit within the chip, such as a register, a cache, etc. The memory may also be a storage unit outside the chip within the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, a RAM, etc.

[0168] It can be understood that the memory in this application may be a volatile memory or a non-volatile memory, or may include both a volatile memory and a non-volatile memory.

[0169] The non-volatile memory may be a ROM, a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory.

[0170] The volatile memory may be a RAM, which is used as an external cache. There are various different types of RAM, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synch link DRAM (SLDRAM), and direct rambus random access memory.

[0171] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A method for evaluating the load-bearing characteristics of transmission line hardware in extreme environments, characterized in that: include: Collect real hardware 3D models of real hardware images in the environment where the power transmission line hardware is located, and the number of real hardware 3D models is the same as the number of target hardware and corresponds one to one; Compare the real hardware 3D model with the reference hardware 3D model and obtain the defect position on the real hardware 3D model; Count and classify the defect positions to obtain standard defect positions and random defect positions; Create standard defect location generation environment parameters; The generated environmental parameters are superimposed on the simulated hardware three-dimensional model to obtain the deformed hardware three-dimensional model; Compare the simulated hardware 3D model and the deformed hardware 3D model to determine the load-bearing capacity of the simulated hardware 3D model, which includes the deformation position and deformation amount; The generation environment parameters for creating standard defect locations include: Determine the stress points on the three-dimensional model of the simulated hardware and the potential stress direction at each stress point; Simulate based on the stress points and the potential stress direction at each stress point to obtain the reference defect position, and apply force in the potential stress direction during the simulation; Compare the reference defect position and the standard defect position and determine the simulation direction until the difference between the reference defect position and the standard defect position is within the allowable range; The force points and the actual force direction and force value at each force point are used as generation environment parameters.

2. The method for evaluating the load-bearing characteristics of power transmission line fittings in extreme environments according to claim 1 is characterized in that: The simulation based on the force points and the potential force direction at each force point includes: Randomly select a force point and a potential force direction belonging to the force point on the three-dimensional model of the hardware; Assigning a force value to the potential force direction and determining a deformation amount attributable to the force value; Calculate the correlation between the deformation variable and the standard defect position; A sub-generation environment parameter is determined according to the association relationship, and a sub-generation environment parameter includes a force point, a potential force direction and a force value.

3. The method for evaluating the load-bearing characteristics of power transmission line fittings in extreme environments according to claim 2 is characterized in that: When the deformation amount is associated with the standard defect position, it also includes: Determine the influence of potential force direction change or force value change on the correlation between deformation variable and standard defect position; Draw an influence change curve belonging to the influence degree and determine the change speed of the influence change curve; When the change speed of the influence change curve is less than or equal to the set change speed, the change of the potential force direction or force value is stopped.

4. The method for evaluating the load-bearing characteristics of power transmission line fittings in extreme environments according to claim 1, characterized in that: Comparing the reference defect position with the standard defect position and determining the simulation direction includes: Transfer the reference defect position and the standard defect position into the same coordinate system; Create analysis surfaces based on reference defect locations; Calculate the changing trend of reference defect position and standard defect position on the analysis surface; When the changing trends of the reference defect position on the analysis surface and the standard defect position on the analysis surface are the largest, the analysis surface is taken as the surface where the force direction is located.

5. The method for evaluating the load-bearing characteristics of power transmission line fittings in extreme environments according to claim 4 is characterized in that: When the analysis surfaces are first created based on the reference defect location, adjacent analysis surfaces are set in parallel; When multiple analysis surfaces can be used as simulation directions, it also includes: Randomly rotate the analysis surface so that the variation trend of the reference defect position belonging to the rotated analysis surface is maximized; Select the analysis surface with the largest change trend among multiple analysis surfaces as the simulation direction; When the analysis plane is rotated, a plurality of analysis planes are provided with reference lines or reference areas.

6. A device for evaluating the load-bearing characteristics of power transmission line fittings in extreme environments, characterized in that: include: The first three-dimensional model creation unit is used to collect real hardware three-dimensional models of real hardware images in the environment where the power transmission line hardware is located, and the number of real hardware three-dimensional models is the same as the number of target hardware and corresponds one to one; The first processing unit is used to compare the real hardware three-dimensional model with the reference hardware three-dimensional model and obtain the defect position on the real hardware three-dimensional model; A statistics and classification unit is used to count and classify defect positions to obtain standard defect positions and random defect positions; An environmental parameter generation unit, used to create environmental parameters for standard defect locations; The second processing unit is used to superimpose the generated environmental parameters on the simulated hardware three-dimensional model to obtain a deformed hardware three-dimensional model; The third processing unit is used to compare the simulated hardware three-dimensional model with the deformed hardware three-dimensional model to determine the load-bearing capacity of the simulated hardware three-dimensional model, where the load-bearing capacity includes the deformation position and the deformation amount; The generation environment parameters for creating standard defect locations include: Determine the stress points on the three-dimensional model of the simulated hardware and the potential stress direction at each stress point; Simulate based on the stress points and the potential stress direction at each stress point to obtain the reference defect position, and apply force in the potential stress direction during the simulation; Compare the reference defect position and the standard defect position and determine the simulation direction until the difference between the reference defect position and the standard defect position is within the allowable range; The force points and the actual force direction and force value at each force point are used as generation environment parameters.

7. A system for evaluating the load-bearing characteristics of power transmission line hardware in extreme environments, characterized in that: The system comprises: one or more memories for storing instructions; and One or more processors, configured to call and execute the instructions from the memory to perform the method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that: The computer readable storage medium comprises: The program, when the program is executed by a processor, the method according to any one of claims 1 to 5 is executed.

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