Equipment operation and maintenance method and device, computer equipment and readable storage medium

Abstract

The invention relates to an equipment operation and maintenance method and device, computer equipment and a readable storage medium. The method comprises the following steps: inputting maintenance sorting index values of equipment in a transformer substation into an equipment maintenance sorting model to obtain maintenance sorting scores of the equipment; according to the maintenance sorting score of each device in the transformer substation and the operation index value of the transformer substation, determining an overall maintenance sorting score of the transformer substation and a transformer substation maintenance sorting result; and for the interval equipment unit in any transformer substation, according to the maintenance sorting score of each equipment in the interval equipment unit and the operation index value of the interval equipment unit, determining an overall maintenance sorting score and an interval maintenance sorting result of the interval equipment unit. By adopting the method, the accuracy of equipment maintenance sorting can be improved.

Description

Technical Field

[0001] The present application relates to the field of maintenance technology, and in particular to an equipment operation and maintenance method, device, computer equipment, computer-readable storage medium, and computer program product. Background Art

[0002] With the continuous growth of electricity demand and the increasing scale of power grids, the number and types of power equipment are also increasing rapidly. In order to ensure the safe and stable operation of the power system, it is essential to carry out timely and effective maintenance of equipment. On the one hand, the long-term operation of power equipment will lead to the risk of aging, wear and failure. If the maintenance is not reasonably planned, it may cause sudden power outages, which will have a serious impact on social production and residents' lives. On the other hand, the competition in the power market is becoming increasingly fierce. Power companies need to optimize resource allocation, reduce maintenance costs, and improve operational efficiency and economic benefits while ensuring the reliability of power supply. In addition, the continuous application of new technologies and new equipment has made the structure and performance of power equipment more complex, and the technical requirements and precision of maintenance are also getting higher and higher. In the process of operation and maintenance of equipment, it is also a very important link to sort the maintenance of equipment.

[0003] At present, the equipment operation and maintenance method can be to first evaluate the reliability of the equipment, formulate corresponding maintenance strategies and plans based on the reliability analysis results of the equipment, sort the equipment, and then repair the equipment in sequence according to the sorting results. However, the current equipment operation and maintenance method relies on a relatively single equipment data dimension to determine the order of equipment maintenance, resulting in low accuracy in equipment maintenance sorting. Summary of the invention

[0004] Based on this, it is necessary to provide an equipment operation and maintenance method, device, computer equipment, computer-readable storage medium and computer program product that can improve the accuracy of equipment maintenance sequencing in response to the above-mentioned technical problems.

[0005] In a first aspect, the present application provides an equipment operation and maintenance method, comprising:

[0006] Inputting the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment;

[0007] According to the maintenance ranking scores of each of the equipment in the substation and the operating index values ​​of the substation, the overall maintenance ranking score of the substation and the substation maintenance ranking result are determined; the substation maintenance ranking result is used to indicate that each of the substations should be maintained in the order of the overall maintenance ranking scores of the substations;

[0008] For the interval equipment units in any of the substations, the overall maintenance ranking score of the interval equipment unit and the interval maintenance ranking result are determined according to the maintenance ranking score of each of the equipment in the interval equipment unit and the operating index value of the interval equipment unit; the interval maintenance ranking result is used to indicate that when any of the substations is to be maintained, each of the interval equipment units in any of the substations shall be maintained in the order of the maintenance ranking scores of each of the interval equipment units.

[0009] In one embodiment, inputting the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment includes:

[0010] Multiple maintenance ranking index values ​​of equipment in the substation are input into the equipment maintenance ranking model, and the membership of each maintenance ranking index value under the expected equipment state is determined through the equipment maintenance ranking model, and the maintenance ranking score of the equipment is determined according to the membership of each maintenance ranking index value and the index weight corresponding to the membership.

[0011] In one embodiment, before inputting the maintenance sequencing index value of the equipment in the substation into the equipment maintenance sequencing model, the method further includes:

[0012] Obtaining index description information of equipment in the substation;

[0013] The indicator description information is input into an indicator value calculation model to obtain a maintenance ranking indicator value corresponding to the indicator description information.

[0014] In one of the embodiments, the operation index value of the substation includes at least one index value of the substation grade, the importance of the substation, the operation time and years of the substation, and the environment in which the substation is located.

[0015] In one of the embodiments, the operation index value of the interval device unit includes at least one index value of the correlation between the interval device units, the impact environment of the interval device units, and the environment in which the interval device units are located.

[0016] In one embodiment, the maintenance ranking index values ​​of the equipment include the equipment's guaranteed power supply level, equipment health status, equipment importance, the number of defective devices of the same type, failure frequency, correlation between equipment, scope of impact of equipment failure, losses caused by equipment failure, equipment power outage or upgrade plan, time interval between the last maintenance, operating time and years, and at least one index value of the equipment's environment.

[0017] In a second aspect, the present application also provides an equipment operation and maintenance device, comprising:

[0018] An input module, used to input the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment;

[0019] A substation sorting module is used to determine the overall maintenance sorting score of the substation and the substation maintenance sorting result according to the maintenance sorting score of each device in the substation and the operating index value of the substation; the substation maintenance sorting result is used to indicate that each substation should be repaired in the order of the overall maintenance sorting score of each substation;

[0020] The unit sorting module is used to determine the overall maintenance sorting score and the interval maintenance sorting result of the interval equipment unit in any of the substations according to the maintenance sorting score of each of the equipment in the interval equipment unit and the operating indicator value of the interval equipment unit; the interval maintenance sorting result is used to indicate that when any of the substations is to be repaired, each of the interval equipment units in any of the substations shall be repaired in the order of the maintenance sorting scores of the interval equipment units.

[0021] In a third aspect, the present application further provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0022] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of the above method when executed by a processor.

[0023] In a fifth aspect, the present application also provides a computer program product, including a computer program, which implements the steps of the above method when executed by a processor.

[0024] The above-mentioned equipment operation and maintenance method, device, computer equipment, computer-readable storage medium and computer program product input the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment; determine the overall maintenance ranking score of the substation and the substation maintenance ranking result according to the maintenance ranking score of each equipment in the substation and the operation index value of the substation, and the substation maintenance ranking result is used to indicate that each substation should be repaired in the order of the overall maintenance ranking score of each substation; for the interval equipment unit in any substation, determine the overall maintenance ranking score of the interval equipment unit and the interval maintenance ranking result according to the maintenance ranking score of each equipment in the interval equipment unit and the operation index value of the interval equipment unit, and the interval maintenance ranking result is used to indicate that when repairing any substation, each interval equipment unit should be repaired in the order of the maintenance ranking scores of each interval equipment unit in any substation. The equipment maintenance ranking model can be used to determine the equipment maintenance ranking score based on the maintenance ranking index value. In addition, for each substation, the maintenance ranking score of the equipment in the substation and the operating index value of the substation can be comprehensively considered to comprehensively and accurately determine the substation maintenance ranking result. At the substation level, it can indicate that the substation with a high overall maintenance ranking score should be given priority. Moreover, within each substation, the interval maintenance ranking result can be comprehensively and accurately determined based on the maintenance ranking score of the equipment in the interval equipment unit and the operating index value of the interval equipment unit. At the equipment unit level, it can indicate that the interval equipment unit with a high overall maintenance ranking score should be given priority. Thus, through multi-level and precise maintenance ranking, the accuracy of equipment maintenance ranking is improved, so that equipment with a high degree of failure can be given priority during the maintenance process, the allocation of maintenance resources is optimized, and the efficiency of equipment maintenance is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] FIG1 is an application environment diagram of an equipment operation and maintenance method in one embodiment;

[0027] FIG2 is a schematic diagram of a flow chart of a method for equipment operation and maintenance in one embodiment;

[0028] FIG3 is a logic diagram of a substation maintenance sequence in one embodiment;

[0029] FIG4 is a logic diagram of an interval equipment unit maintenance sequence in one embodiment;

[0030] FIG5 is a logic diagram of automatic sequencing of operation and maintenance in one embodiment;

[0031] FIG6 is a schematic diagram of a flow chart of a method for equipment operation and maintenance in another embodiment;

[0032] FIG7 is a structural block diagram of an equipment operation and maintenance device in one embodiment;

[0033] FIG. 8 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] The equipment operation and maintenance method provided in the embodiment of the present application can be applied in the application environment shown in FIG1. ​​The terminal 102 communicates with the server 104 through a network. The data storage system can store data that the server 104 needs to process. The data storage system can be integrated on the server 104, or it can be placed on the cloud or other network servers. The terminal 102 inputs the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment; the terminal 102 determines the overall maintenance ranking score of the substation and the maintenance ranking result of the substation according to the maintenance ranking score of each equipment in the substation and the operation index value of the substation; the substation maintenance ranking result is used to indicate that each substation is to be repaired in the order of the overall maintenance ranking score of each substation; the terminal 102 determines the overall maintenance ranking score and the interval maintenance ranking result of the interval equipment unit for the interval equipment unit in any substation according to the maintenance ranking score of each equipment in the interval equipment unit and the operation index value of the interval equipment unit; the interval maintenance ranking result is used to indicate that when any substation is to be repaired, each interval equipment unit is to be repaired in the order of the maintenance ranking score of each interval equipment unit in any substation. Among them, the terminal 102 can be, but is not limited to, various personal computers, laptops, smart phones, tablet computers and Internet of Things devices. The server 104 may be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides cloud computing services.

[0036] In an exemplary embodiment, as shown in FIG2 , a device operation and maintenance method is provided, which is described by taking the method applied to the terminal 102 in FIG1 as an example, including:

[0037] Step S202: input the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment.

[0038] Among them, the equipment in the substation may include circuit breakers, disconnectors, transformers, lightning arresters, transformers, load switches, high-voltage fuses and other electrical equipment.

[0039] The maintenance ranking index value is the value of the maintenance ranking index. The maintenance ranking index is a key numerical indicator for evaluating the status of the equipment, which may include indicators of multiple dimensions such as the health status of the equipment, the number of failures, the operating life, the importance of the load, and the environmental conditions. The value corresponding to each maintenance ranking index is the maintenance ranking index value. For example, the maintenance ranking index includes the health status of the equipment. A maintenance ranking index value of 1 can represent a healthy state, and a maintenance ranking index value of 0 can represent an unhealthy state, without specific limitation.

[0040] Among them, the equipment maintenance ranking model can calculate the equipment maintenance ranking score according to the maintenance ranking index value.

[0041] As an example, the equipment maintenance ranking model can be used to multiply the values ​​of each maintenance ranking index by the corresponding index weight, and then sum them up to obtain the maintenance ranking score of the equipment. As another example, the equipment maintenance ranking model can also use the principal component analysis method to extract the eigenvalues ​​of each maintenance ranking index value, and calculate its contribution rate based on the eigenvalue to obtain the score matrix of the principal component, which can be used to determine the maintenance ranking score of the equipment. As another example, the equipment maintenance ranking model can be evaluated by the health index method, that is, the health index is used to characterize the values ​​of each maintenance ranking index, and a nonlinear relationship model is established by time series analysis to fit the changing trend of the health index of the equipment. The health index can be used to determine the maintenance ranking score of the equipment. As another example, the equipment maintenance ranking model can establish a factor set and a comprehensive evaluation set of different levels, clarify the weight of each factor and obtain an evaluation matrix, and use fuzzy mathematics to conduct a comprehensive evaluation for the equipment status evaluation.

[0042] In practical applications, in order to solve the problem of selection and adaptability of equipment maintenance scheduling model, a feedback mechanism for comparative analysis of different models can be determined, and the most suitable equipment maintenance scheduling model can be determined according to the actual data and characteristics of the power grid.

[0043] Step S204, determining the overall maintenance ranking score of the substation and the maintenance ranking result of the substation according to the maintenance ranking score of each device in the substation and the operating index value of the substation.

[0044] The substation operation index value is the value of the substation operation index, which may be a key indicator affecting the overall operation of the substation, such as the number of substation equipment, overall load, operating years, maintenance records, environmental factors, etc. The substation maintenance ranking result is determined by the substation operation index value and the maintenance ranking score of each device inside the substation, and the maintenance priority of the substation can be comprehensively considered.

[0045] The substation maintenance ranking result is used to indicate that each substation should be maintained in the order of the overall maintenance ranking scores of each substation. The substation maintenance ranking result includes the overall maintenance ranking scores of each substation sorted in the order of high and low.

[0046] In a specific implementation, the higher the overall maintenance ranking score of a substation, the higher the maintenance priority of the substation, that is, the substation has more serious and urgent problems requiring maintenance than other substations. Based on the maintenance ranking result of the substation, the substation can be given priority for maintenance.

[0047] In one of the embodiments, the overall maintenance ranking score of the substation and the maintenance ranking result of the substation are determined based on the maintenance ranking score of each equipment in the substation and the operating index value of the substation. The cumulative score of the equipment in the substation can be determined based on the maintenance ranking score of each equipment in the substation; optionally, the cumulative score can be the average of the maintenance ranking scores of each equipment in the substation, or the sum of the maintenance ranking scores of each equipment; then, the overall maintenance ranking score of the substation and the maintenance ranking result of the substation are determined based on the cumulative score and the operating index value of the substation.

[0048] As an example, the overall maintenance ranking score of the substation and the maintenance ranking result of the substation are determined based on the maintenance ranking score of each equipment in the substation and the operating index value of the substation. The maintenance ranking score of each equipment in the substation and the operating index value of the substation can be weighted summed to determine the overall maintenance ranking score of the substation and the maintenance ranking result of the substation; or, the cumulative score and the operating index value of the substation can be weighted summed to determine the overall maintenance ranking score of the substation and the maintenance ranking result of the substation.

[0049] As another example, a substation coefficient may be generated according to the operating index value of the substation, and the cumulative score of each device may be adjusted according to the substation coefficient to obtain the overall maintenance ranking score of the substation and the substation maintenance ranking result.

[0050] Step S206, for any bay equipment unit in the substation, determine the overall maintenance ranking score of the bay equipment unit and the bay maintenance ranking result according to the maintenance ranking score of each device in the bay equipment unit and the operating index value of the bay equipment unit.

[0051] Among them, a substation may include multiple bay equipment units, and a bay equipment unit may include multiple devices. In other words, the bay equipment unit can be regarded as a device group in the substation. The bay equipment unit can be a unit divided according to the function of the internal equipment of the substation, or a unit divided according to the physical connection relationship of the internal equipment of the substation.

[0052] The operation index value of the bay equipment unit is the value of the operation index of the bay equipment unit, and the operation index of the bay equipment unit may include key indicators for indicating the impact of the bay equipment unit on the system operation, such as the relationship between bay equipment units, the impact of the bay equipment unit on other parts of the system, etc. The bay maintenance ranking result is determined by the operation index value of the bay equipment unit and the maintenance ranking score of each device within the bay equipment unit, and the maintenance priority of each bay equipment unit can be comprehensively considered within the substation.

[0053] The interval maintenance ranking result is used to indicate that when any substation is to be maintained, each interval equipment unit in any substation shall be maintained in the order of the maintenance ranking scores of each interval equipment unit. The interval maintenance ranking result includes the overall maintenance ranking scores of each interval equipment unit sorted in the order of high and low.

[0054] In a specific implementation, a higher overall maintenance ranking score of an interval equipment unit indicates a higher maintenance priority of the interval equipment unit, that is, the interval equipment unit has more serious and urgent problems requiring maintenance than other interval equipment units. Based on the interval maintenance ranking result, the interval equipment unit can be prioritized for maintenance.

[0055] In one of the embodiments, the overall maintenance ranking score of the interval equipment unit and the interval maintenance ranking result are determined based on the maintenance ranking score of each device in the interval equipment unit and the operating index value of the interval equipment unit. The cumulative score of the devices in the interval equipment unit can be determined based on the maintenance ranking score of each device in the interval equipment unit. Optionally, the cumulative score can be the average of the maintenance ranking scores of each device in the interval equipment unit or the sum of the maintenance ranking scores of each device. Then, the overall maintenance ranking score and the interval maintenance ranking result of the interval equipment unit are determined based on the cumulative score and the operating index value of the interval equipment unit.

[0056] As an example, the overall maintenance ranking score of the interval equipment unit and the interval maintenance ranking result are determined based on the maintenance ranking score of each device in the interval equipment unit and the operating index value of the interval equipment unit. The overall maintenance ranking score of the interval equipment unit and the maintenance ranking result of the interval equipment unit may be determined by weighted summing up the maintenance ranking scores of each device in the interval equipment unit and the operating index value of the interval equipment unit; or, the overall maintenance ranking score of the interval equipment unit and the maintenance ranking result of the interval equipment unit may be determined by weighted summing up the cumulative scores of each device in the interval equipment unit and the operating index value of the interval equipment unit.

[0057] As another example, a unit coefficient may be generated according to the operating index value of the interval equipment unit, and the cumulative score of each device may be adjusted according to the unit coefficient to obtain the overall maintenance ranking score of the interval equipment unit and the maintenance ranking result of the interval equipment unit.

[0058] In the above-mentioned equipment operation and maintenance method, the maintenance ranking index value of the equipment in the substation is input into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment; according to the maintenance ranking score of each equipment in the substation and the operation index value of the substation, the overall maintenance ranking score of the substation and the substation maintenance ranking result are determined, and the substation maintenance ranking result is used to indicate that each substation should be repaired in the order of the overall maintenance ranking score of each substation; for the interval equipment unit in any substation, according to the maintenance ranking score of each equipment in the interval equipment unit and the operation index value of the interval equipment unit, the overall maintenance ranking score of the interval equipment unit and the interval maintenance ranking result are determined, and the interval maintenance ranking result is used to indicate that when repairing any substation, each interval equipment unit in any substation should be repaired in the order of the maintenance ranking scores of each interval equipment unit in the substation. The equipment maintenance ranking model can be used to determine the equipment maintenance ranking score based on the maintenance ranking index value. In addition, for each substation, the maintenance ranking score of the equipment in the substation and the operating index value of the substation can be comprehensively considered to comprehensively and accurately determine the substation maintenance ranking result. At the substation level, it can indicate that the substation with a high overall maintenance ranking score should be given priority. Moreover, within each substation, the interval maintenance ranking result can be comprehensively and accurately determined based on the maintenance ranking score of the equipment in the interval equipment unit and the operating index value of the interval equipment unit. At the equipment unit level, it can indicate that the interval equipment unit with a high overall maintenance ranking score should be given priority. Thus, through multi-level and precise maintenance ranking, the accuracy of equipment maintenance ranking is improved, so that equipment with a high degree of failure can be given priority during the maintenance process, the allocation of maintenance resources is optimized, and the efficiency of equipment maintenance is improved.

[0059] In another embodiment, before inputting the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model, it also includes: obtaining the index description information of the equipment in the substation; inputting the index description information into the index value calculation model to obtain the maintenance ranking index value corresponding to the index description information.

[0060] In specific implementation, the indicator description information may include equipment health status deduction points, power supply guarantee tasks, equipment importance, scope of impact of equipment failure, losses caused by equipment failure, equipment power outage / upgrade plan, defects of the same type of equipment, failure frequency, equipment correlation, time interval between the last maintenance, operating time and years, equipment environment, etc.

[0061] Among them, the meaning of the power supply guarantee task is: for equipment involved in special power supply guarantee, first-level power supply guarantee, second-level power supply guarantee, and third-level power supply guarantee, maintenance should be given priority as required.

[0062] The meaning of equipment health status deduction points is: the equipment with more deduction points should be given priority for maintenance, because its condition may be worse and the potential risk is greater.

[0063] The meaning of equipment importance is: for critical equipment that has a greater impact on the operation of the entire system, it may need to be repaired first even if the deduction points are relatively small.

[0064] The meaning of equipment failure impact scope is: analyze the impact scope that may be caused by equipment failure, and give priority to repairing equipment with a wide impact scope.

[0065] The meaning of losses caused by equipment failure is: the greater the overall loss caused by equipment failure, the higher the priority should be for repair.

[0066] The meaning of equipment power outage / upgrade and renovation plan is: for equipment with relevant power outage / upgrade and renovation plans, maintenance can be carried out on a priority basis according to the planned schedule.

[0067] The meaning of defects in the same type of equipment is: if there are defects in the same type of equipment, or if there are family defects in the equipment, repair should be given priority.

[0068] The meaning of failure frequency is that higher priority is given to equipment that often has problems or has poor repair results.

[0069] The meaning of equipment relevance is: consider the relationship between devices. If repairing a certain device is of great help to improve the status of other related devices or repairing a certain device will affect other devices, it can be handled first.

[0070] The meaning of the time interval since the last maintenance is: the longer the interval since the last maintenance, the higher the priority that should be given to scheduling maintenance.

[0071] The meaning of operating time and years is that equipment with longer operating time and longer service life may be more prone to problems and should be given priority.

[0072] The meaning of the environment in which the equipment is located is that equipment in a harsh environment may deteriorate faster, so maintenance needs to be given priority.

[0073] Data collection of indicator description information can be achieved by using technologies such as the Internet of Things and sensors to realize real-time data collection of power equipment. At the same time, historical data and expert experience can be combined to build a comprehensive data set, and an automated labeling tool based on machine learning can be developed, that is, an indicator numerical calculation model. The indicator description information can be quantified to obtain the maintenance ranking indicator value, reducing the workload of manual labeling and improving the accuracy of labeling.

[0074] The indicator value calculation model can convert the indicator description information into specific and quantifiable maintenance ranking indicator values. These indicator description information can accurately reflect the equipment status and further reflect whether the equipment needs to be given priority for maintenance.

[0075] In one embodiment, the maintenance ranking index values ​​of the equipment include the equipment's guaranteed power supply level, equipment health status, equipment importance, the number of defective equipment of the same type, failure frequency, correlation between equipment, the impact range of equipment failure, losses caused by equipment failure, equipment power outage or upgrade plan, time interval between the last maintenance, operating time and years, and at least one index value of the equipment's environment.

[0076] In the specific implementation, if the indicator description information is a power supply guarantee task, the power supply guarantee task is a rigid constraint condition for maintenance, and if there is a power supply guarantee task, the inspection is carried out directly according to the requirements. Therefore, if there is a power supply guarantee task, the power supply level is high, and the value of the maintenance sorting indicator is 1; otherwise, if there is no power supply guarantee task, the power supply level is low, and the value of the maintenance sorting indicator is 0. Among them, the special power supply guarantee equipment should have the highest maintenance priority, followed by the first, second and third power supply guarantee equipment.

[0077] If the indicator description information is the equipment health status deduction point, then the maintenance ranking indicator value is the equipment health status, and the equipment health status can be represented by the total equipment health status deduction point value.

[0078] If the indicator description information is equipment importance, the three main factors considered are equipment value, load level and equipment status. Each factor is divided into multiple levels. With the changes in users and the development of the power grid, the equipment value, load level and equipment status should be adjusted accordingly. The importance of the equipment is determined based on the corresponding levels of the three factors, and the maintenance ranking indicator value can be used with values ​​such as 0 and 1 to distinguish the degree of importance.

[0079] If the indicator description information is a defect of the same type of equipment, the value of the maintenance ranking indicator is determined based on whether the same type of equipment recorded in the indicator description information has defects. The value of the maintenance ranking indicator is the number of equipment with defects of the same type. If there are defects of the same type of equipment, the value of the maintenance ranking indicator is increased by 1 for each defect of the same type of equipment found.

[0080] If the indicator description information is failure frequency, the equipment failure rate is calculated as the maintenance ranking indicator value, and the equipment failure rate = downtime caused by equipment failure / equipment failure operation time.

[0081] If the indicator description information is equipment correlation, the correlation between the equipment is analyzed based on the grid topology, equipment type and function (for example, there are specific functional correlations between different types of equipment such as transformers and transmission lines, switch cabinets and protection devices), and the total number of affected equipment is used as the value of the maintenance ranking indicator. For each device affected, the value of the maintenance ranking indicator is increased by 1.

[0082] If the indicator description information is the impact range of the equipment failure, by analyzing the type, location and severity of the power grid equipment failure, combined with the topological structure and operation mode of the power grid, the areas, equipment and users that may be affected can be inferred, and the final number of affected users is used as the final value of the maintenance ranking indicator.

[0083] If the indicator description information is the loss caused by equipment failure, the loss caused by equipment failure = C1 + C2 + C3 + C4; where C1 is the labor, material, spare parts, and shift costs incurred for equipment failure repair and replacement; C2 is the load loss that may be caused by equipment failure; C3 is the loss caused by equipment failure to personnel and the environment; C4 is the loss caused by power outages caused by equipment failure to social users. The loss caused by equipment failure is the value of the maintenance ranking indicator.

[0084] If the indicator description information is equipment power outage / upgrade and renovation plan, it can be determined based on whether the current equipment has a power outage plan and equipment upgrade and renovation plan in the near future. If there is a power outage plan and equipment upgrade plan, the maintenance ranking indicator value is 1, otherwise it is 0.

[0085] If the indicator description information is the last maintenance time interval, the last maintenance time interval is calculated as the maintenance sorting indicator value, and the last maintenance time interval is equal to the difference between the current time and the last maintenance time of the equipment.

[0086] If the indicator description information is the operating time and years, the time the equipment is put into operation is calculated as the value of the maintenance ranking indicator. The time the equipment is put into operation = (current time - equipment input time) / equipment life cycle.

[0087] If the indicator description information is the environment in which the equipment is located, quantification is performed for various environmental conditions according to the quantitative standards to determine whether the environment in which the equipment is located is a harsh environment. If one of the conditions is met, the harshness score in the maintenance ranking indicator value is increased by 1 point. The evaluation of a harsh environment can be shown in Table 1.

[0088] Table 1

[0089]

[0090] The technical solution of this embodiment realizes the conversion process from descriptive information to quantitative values ​​by converting indicator description information into maintenance ranking indicator values, thereby enhancing the understanding and evaluation capabilities of equipment status, and can more comprehensively and accurately evaluate the operating status of each equipment, and determine its maintenance priority in a scientific and quantitative manner, thereby ensuring the accuracy and diversity of the data input into the model and improving the rationality and reliability of maintenance ranking.

[0091] In another embodiment, the maintenance ranking index value of the equipment in the substation is input into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment, including: inputting multiple maintenance ranking index values ​​of the equipment in the substation into the equipment maintenance ranking model, determining the membership of each maintenance ranking index value under the expected equipment state through the equipment maintenance ranking model, and determining the maintenance ranking score of the equipment according to the membership of each maintenance ranking index value and the index weight corresponding to the membership.

[0092] Among them, the membership degree is used to indicate the degree of conformity of the maintenance sequencing index value with the expected equipment status.

[0093] In the fuzzy comprehensive evaluation method, membership is used to indicate the degree to which the status of a certain device meets a specific level (such as "excellent", "good", "poor"). Through the equipment maintenance ranking model, the membership of each indicator value under different expected equipment states is calculated. The range of membership is between 0 and 1. The closer the value is to 1, the more the device meets the expected state; the closer the value is to 0, the greater the degree of deviation of the device from the state. For example, assuming that the health status score of a certain device is 80 points, the model can calculate that the device's membership to the "good" state is 0.7 and its membership to the "excellent" state is 0.3. These memberships reflect the degree of compliance of the equipment under different states. For example, if the indicator description information is the failure frequency, and the maintenance ranking indicator value is the equipment failure rate, if the equipment failure rate is high, it can be determined that the maintenance ranking indicator value has a membership of 0.8 for the "poor" state, a membership of 0.2 for the "good" state, and a membership of 0 for the "excellent" state.

[0094] Optionally, the expected equipment state can be selected as the "excellent" state, and the membership of each maintenance ranking indicator value in the "excellent" state is determined according to the value of each maintenance ranking indicator. If it is close, the membership is large, and if it deviates, the membership is small. Finally, the maintenance ranking score of the equipment is determined by combining the membership of each maintenance ranking indicator value and the indicator weight corresponding to the membership. The maintenance ranking score can be used to reflect whether the equipment state of the equipment is excellent enough. If the maintenance ranking score is low, it means that the equipment state may not be ideal.

[0095] Among them, the indicator weight corresponding to the membership degree is used to indicate the importance of the maintenance ranking indicator value in the equipment status evaluation. For example, the weight of the equipment health status may be higher than the number of failures because it has a greater impact on the overall status of the equipment.

[0096] In actual applications, the analytic hierarchy process is used to obtain expert opinions from multiple fields to determine the indicator weights, and multiple rounds of adjustments are made. At the same time, sensitivity analysis is conducted in combination with historical data and actual cases to evaluate the impact of different weight allocation schemes on the maintenance ranking results, and the optimal weight scheme is selected, which greatly improves the scientificity and accuracy of the maintenance ranking.

[0097] The technical solution of this embodiment reflects the fuzziness of the equipment status by calculating the membership degree. After combining the weights, the final maintenance ranking score can more accurately reflect the comprehensive operating status of the equipment. This method can flexibly respond to complex equipment status information and ensure that those equipment with poor status and greater risks are given priority, thereby improving the maintenance efficiency and accuracy of the power system.

[0098] In another embodiment, the operation index value of the substation includes at least one index value of the substation grade, the importance of the substation, the operation time and years of the substation, and the environment in which the substation is located.

[0099] Among them, substation level is a key indicator for evaluating the importance of substations. For example, high-level substations (such as special-level substations) often undertake more important power transmission tasks, so their maintenance priority may be higher.

[0100] Substation importance is determined based on the location and function of the substation in the power grid. A substation that is critical to the operation of the entire power system has a higher importance and should be given priority in maintenance in the sequencing.

[0101] The operation time and age of the substation reflect the operating time of the substation. Substations with a long operating time may have aging problems and therefore need to be repaired first.

[0102] The substation environment is the external environment where the substation is located (such as high temperature, high humidity, highly corrosive areas, etc.), which will affect the operating stability and life of its equipment. Substations in harsh environments require more frequent maintenance.

[0103] By combining these operating indicator values, the overall maintenance ranking score of the substation will be more accurate, which will help prioritize the maintenance of substations that are more important in the power grid, have harsh environmental conditions or have been in operation for a long time.

[0104] In another embodiment, the operation index value of the interval device unit includes at least one index value of the correlation between the interval device units, the impact environment of the interval device units, and the environment in which the interval device units are located.

[0105] The correlation between the interval equipment units can refer to the interdependence between different equipment units. For example, if the failure of an interval equipment unit affects multiple other equipment units, then its correlation is high, and repairing this equipment unit first can reduce the overall failure risk.

[0106] The impact environment of the bay equipment unit can refer to the impact range of the bay equipment unit in the operation of the entire substation. If the failure of a device unit will affect most of the substation systems, then its impact environment is large, so it should be given priority in sorting.

[0107] The environment in which the interval equipment unit is located may mean that the interval equipment unit may also be affected by the external environment (such as temperature, humidity, pollution, etc.). Equipment in harsh environments may be damaged faster and need to be repaired first.

[0108] Through these operating indicator values, the evaluation of interval equipment units can be refined to ensure that those equipment units that have a greater impact on the overall system or are in harsh environments receive priority maintenance.

[0109] The above embodiments introduce more detailed indicators for the operation status of substations and interval equipment units, respectively. The quantification of these indicators can help to more accurately evaluate their maintenance priorities. The operation indicator values ​​of substations and interval equipment units provide a more comprehensive basis for equipment maintenance sorting, not only considering the status of the equipment itself, but also introducing factors such as its operating environment, relevance, and importance, thereby ensuring the reasonable arrangement of maintenance work and improving the safety and stability of the power system.

[0110] To facilitate the understanding of those skilled in the art, Figure 3 provides an exemplary logic diagram of substation maintenance ranking. The comprehensive ranking score is calculated by ranking the maintenance of each component of the substation, and other influencing factors such as the substation level, substation importance, substation operation time, and substation environment are superimposed. After the indicators are quantified, the ranking score is calculated with the help of the model to obtain the final maintenance ranking.

[0111] In order to facilitate the understanding of those skilled in the art, Figure 4 provides an exemplary logic diagram of the maintenance ranking of an interval equipment unit. The comprehensive ranking score is calculated by calculating the maintenance ranking of each component equipment of the interval, and then other influencing factors such as the correlation between the intervals, the interval influence range, and the environment in which the intervals are located are superimposed. Based on the influencing factors of the substation interval maintenance ranking, after quantification by indicators, the ranking score is calculated with the help of the model to form the final maintenance ranking.

[0112] In order to facilitate the understanding of those skilled in the art, FIG5 exemplarily provides a logic diagram of automatic sorting of operation and maintenance. In the automatic sorting scheme of maintenance and inspection, the factors affecting the sorting of the inspection and inspection of a single device will be determined first, and the scoring index of the sorting of the inspection and inspection of a single device will be calculated. On this basis, the substation will be taken as a combination, and the other influencing factors of the substation inspection and inspection will be superimposed on the accumulated results of the sorting of the inspection and inspection of each device contained in it, and finally the overall scoring and sorting of the substation will be formed. The calculation logic of the interval inspection and inspection sorting is similar to that of the substation.

[0113] This application adopts advanced equipment maintenance sorting common model construction methods, such as the application and combination of specific weighted average method, fuzzy comprehensive evaluation method, etc., to achieve more efficient and accurate maintenance sorting. The calculation process of the maintenance sorting includes the accumulation of the maintenance sorting scores of each component equipment, as well as the quantification and integration mode of the unique influencing factors in the operation and maintenance repair level, to ensure the comprehensiveness and accuracy of the sorting results. In addition, it provides calculation logic and influencing factor superposition methods for interval maintenance sorting and substation maintenance sorting, such as the calculation of the comprehensive sorting score of the interval component equipment and the calculation score of the comprehensive sorting of the substation, which provides strong data support and analysis basis for maintenance decision-making. Based on the maintenance sorting influencing factors of a single device, the maintenance sorting score index of a single device is calculated, and the substation or interval maintenance sorting plan is used as a combination, and the maintenance sorting calculation results of each device contained therein are accumulated, and other influencing factors of substation maintenance or interval maintenance are superimposed, and finally a solution idea for the overall scoring and sorting of substation or interval maintenance is formed.

[0114] In another embodiment, as shown in FIG. 6 , a device operation and maintenance method is provided, which is described by taking the method applied to the terminal 102 in FIG. 1 as an example, and includes the following steps:

[0115] S602, obtaining index description information of equipment in the substation.

[0116] S604, input the indicator description information into the indicator value calculation model to obtain the maintenance ranking indicator value corresponding to the indicator description information.

[0117] S606, input multiple maintenance ranking index values ​​of equipment in the substation into the equipment maintenance ranking model, determine the membership of each maintenance ranking index value under the expected equipment state through the equipment maintenance ranking model, and determine the maintenance ranking score of the equipment according to the membership of each maintenance ranking index value and the index weight corresponding to the membership.

[0118] The maintenance ranking index values ​​of the equipment include the equipment's guaranteed power supply level, equipment health status, equipment importance, the number of defective equipment of the same type, failure frequency, correlation between equipment, the impact scope of equipment failure, losses caused by equipment failure, equipment power outage or upgrade plan, time interval between the last maintenance, operating time and years, and at least one of the following index values ​​of the equipment's environment.

[0119] S608, determining the overall maintenance ranking score of the substation and the maintenance ranking result of the substation according to the maintenance ranking score of each device in the substation and the operating index value of the substation.

[0120] The substation maintenance ranking result is used to indicate that each substation should be maintained in the order of its overall maintenance ranking score.

[0121] The operating index values ​​of the substation include at least one index value of the substation grade, the importance of the substation, the length and years of operation of the substation, and the environment in which the substation is located.

[0122] S610, for any bay equipment unit in a substation, determine the overall maintenance ranking score of the bay equipment unit and the bay maintenance ranking result according to the maintenance ranking score of each device in the bay equipment unit and the operating index value of the bay equipment unit.

[0123] The interval maintenance ranking result is used to indicate that when any substation is to be maintained, each interval equipment unit in any substation shall be maintained in the order of the maintenance ranking scores of each interval equipment unit in any substation.

[0124] The operation index values ​​of the interval equipment units include the correlation between the interval equipment units, the impact environment of the interval equipment units, and at least one index value of the environment in which the interval equipment units are located.

[0125] It should be noted that the specific limitations of the above steps can refer to the specific limitations of an equipment operation and maintenance method mentioned above.

[0126] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0127] Based on the same inventive concept, the embodiment of the present application also provides an equipment operation and maintenance device for implementing the equipment operation and maintenance method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more equipment operation and maintenance device embodiments provided below can refer to the limitations on the equipment operation and maintenance method above, and will not be repeated here.

[0128] In an exemplary embodiment, as shown in FIG7 , a device operation and maintenance apparatus is provided, comprising:

[0129] The input module 710 is used to input the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment.

[0130] The substation sorting module 720 is used to determine the overall maintenance sorting score of the substation and the substation maintenance sorting result according to the maintenance sorting score of each of the equipment in the substation and the operating indicator value of the substation; the substation maintenance sorting result is used to indicate that each of the substations should be repaired in the order of the overall maintenance sorting score of each of the substations.

[0131] The unit sorting module 730 is used to determine the overall maintenance sorting score and the interval maintenance sorting result of the interval equipment unit in any of the substations according to the maintenance sorting score of each of the equipment in the interval equipment unit and the operating indicator value of the interval equipment unit; the interval maintenance sorting result is used to indicate that when any of the substations is to be repaired, each of the interval equipment units in any of the substations shall be repaired in the order of the maintenance sorting scores of each of the interval equipment units.

[0132] In one embodiment, the input module 710 is specifically used to input multiple maintenance ranking index values ​​of equipment in the substation into the equipment maintenance ranking model, determine the membership of each maintenance ranking index value under the expected equipment state through the equipment maintenance ranking model, and determine the maintenance ranking score of the equipment according to the membership of each maintenance ranking index value and the index weight corresponding to the membership.

[0133] In one embodiment, the input module 710 is specifically used to obtain index description information of equipment in the substation; input the index description information into an index value calculation model to obtain a maintenance ranking index value corresponding to the index description information.

[0134] In one of the embodiments, the operation index value of the substation includes at least one index value of the substation grade, the importance of the substation, the operation time and years of the substation, and the environment in which the substation is located.

[0135] In one of the embodiments, the operation index value of the interval device unit includes at least one index value of the correlation between the interval device units, the impact environment of the interval device units, and the environment in which the interval device units are located.

[0136] In one embodiment, the maintenance ranking index values ​​of the equipment include the equipment's guaranteed power supply level, equipment health status, equipment importance, the number of defective devices of the same type, failure frequency, correlation between equipment, scope of impact of equipment failure, losses caused by equipment failure, equipment power outage or upgrade plan, time interval between the last maintenance, operating time and years, and at least one index value of the equipment's environment.

[0137] Each module in the above-mentioned equipment operation and maintenance device can be implemented in whole or in part by software, hardware and their combination. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0138] In an exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be shown in FIG8. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, the memory, and the input / output interface are connected via a system bus, and the communication interface, the display unit, and the input device are connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner may be implemented through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, a method for equipment operation and maintenance is implemented. The display unit of the computer device is used to form a visually visible picture, which may be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0139] Those skilled in the art will understand that the structure shown in FIG. 8 is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0140] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0141] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0142] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0143] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0144] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0145] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0146] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for equipment operation and maintenance, characterized in that: The method comprises: Inputting the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment; According to the maintenance ranking scores of each of the equipment in the substation and the operating index values ​​of the substation, the overall maintenance ranking score of the substation and the substation maintenance ranking result are determined; the substation maintenance ranking result is used to indicate that each of the substations should be maintained in the order of the overall maintenance ranking scores of the substations; For the interval equipment units in any of the substations, the overall maintenance ranking score of the interval equipment unit and the interval maintenance ranking result are determined according to the maintenance ranking score of each of the equipment in the interval equipment unit and the operating index value of the interval equipment unit; the interval maintenance ranking result is used to indicate that when any of the substations is to be maintained, each of the interval equipment units in any of the substations shall be maintained in the order of the maintenance ranking scores of each of the interval equipment units.

2. The method according to claim 1, characterized in that The step of inputting the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment includes: Multiple maintenance ranking index values ​​of equipment in the substation are input into the equipment maintenance ranking model, and the membership of each maintenance ranking index value under the expected equipment state is determined through the equipment maintenance ranking model, and the maintenance ranking score of the equipment is determined according to the membership of each maintenance ranking index value and the index weight corresponding to the membership.

3. The method according to claim 1, characterized in that Before inputting the maintenance sequencing index values ​​of the equipment in the substation into the equipment maintenance sequencing model, the method further includes: Obtaining index description information of equipment in the substation; The indicator description information is input into an indicator value calculation model to obtain a maintenance ranking indicator value corresponding to the indicator description information.

4. The method according to claim 1, characterized in that The operation index value of the substation includes at least one index value of the substation grade, the importance of the substation, the operation time and years of the substation, and the environment in which the substation is located.

5. The method according to claim 1, characterized in that The operation index value of the interval device unit includes at least one index value of the correlation between the interval device units, the impact environment of the interval device units, and the environment in which the interval device units are located.

6. The method according to claim 1, characterized in that The maintenance ranking index values ​​of the equipment include the equipment's guaranteed power supply level, equipment health status, equipment importance, the number of defective equipment of the same type, failure frequency, correlation between equipment, the impact scope of equipment failure, losses caused by equipment failure, equipment power outage or upgrade plan, time interval between the last maintenance, operating time and years, and at least one index value of the environment in which the equipment is located.

7. An equipment operation and maintenance device, characterized in that: The device comprises: An input module, used to input the maintenance ranking index value of the equipment in the substation into the equipment maintenance ranking model to obtain the maintenance ranking score of the equipment; A substation sorting module is used to determine the overall maintenance sorting score of the substation and the substation maintenance sorting result according to the maintenance sorting score of each device in the substation and the operating index value of the substation; the substation maintenance sorting result is used to indicate that each substation should be repaired in the order of the overall maintenance sorting score of each substation; The unit sorting module is used to determine the overall maintenance sorting score and the interval maintenance sorting result of the interval equipment unit in any of the substations according to the maintenance sorting score of each of the equipment in the interval equipment unit and the operating indicator value of the interval equipment unit; the interval maintenance sorting result is used to indicate that when any of the substations is to be repaired, each of the interval equipment units in any of the substations shall be repaired in the order of the maintenance sorting scores of the interval equipment units.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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