A digital five-prevention safety control method and system for overhead lines of distribution networks

Abstract

The present application discloses a digital five-prevention safety control method and system for overhead lines of a distribution network, which relates to the technical field of digital distribution networks. It includes establishing each operation step and a set of mutually exclusive steps that are mutually exclusive to it; establishing a mapping relationship between each operation step and the corresponding set of mutually exclusive steps; whenever a new operation step is added, obtaining the previous step of the new step; based on the previous step, identifying the set of mutually exclusive steps corresponding to the previous step; in the set of mutually exclusive steps corresponding to the previous step, matching the mutually exclusive step corresponding to the new step; if the match is successful, generating an alarm message and freezing the step addition, and if the match is unsuccessful, opening the step addition. The present application has the effect of reducing the possibility of operators inputting incorrect operation steps.

Description

Technical Field

[0001] This application relates to the technical field of digital distribution networks, and in particular, to a digital five-prevention safety control method and system for overhead lines of distribution networks. Background Art

[0002] During the operation and management of power grid equipment, it is necessary to manage and operate various electrical equipment. For example, various switches, disconnectors, transformers, etc. in a substation are operated in sequence. With the continuous development of power grid system management technology, power grid operation and maintenance personnel can realize online monitoring and management of electrical equipment in a substation through an intelligent operation platform.

[0003] For a series of operations for substation equipment maintenance, there are strict operation steps, and these operation steps have a strict sequence and rigorous operation logic. Once the operation steps are chaotic or handled incorrectly, the operation risk will increase significantly.

[0004] In order to improve the accuracy of the sequence of operation steps for power grid equipment, the operator first clearly defines the operation steps to be performed, and then pre-operates on the cloud management system in advance, that is, enters the correct operation steps in sequence in the cloud management system to generate an operation ticket, and then imports the correct operation ticket into the mobile terminal. Then, the operator carries the mobile terminal to the equipment site and executes the operation according to each instruction of the mobile terminal (the screen display instruction and the voice instruction are synchronized) to ensure the accuracy of the sequence of operation steps.

[0005] However, during the process of the operator entering operation steps through the cloud management system, it is inevitable to enter incorrect operation steps, that is, there is a possibility of a safety accident when two adjacent steps are run in sequence. If the operator operates the equipment according to the operation ticket including incorrect steps, it will endanger the personal safety of the operator and the stable operation of the equipment. Summary of the Invention

[0006] In order to reduce the possibility of the operator entering incorrect operation steps, this application provides a digital five-prevention safety control method and system for overhead lines of distribution networks.

[0007] In a first aspect, this application provides a digital five-prevention safety control method for overhead lines of distribution networks, adopting the following technical solutions:

[0008] A digital five-prevention safety control method for overhead lines of distribution networks includes:

[0009] Establish a set of mutually exclusive steps for each operation step and the mutually exclusive steps;

[0010] Establish a mapping relationship between each operation step and the corresponding set of mutually exclusive steps;

[0011] For each newly added operation step, obtain the previous step of the newly added step;

[0012] Based on the previous step, identify the set of mutually exclusive steps corresponding to the previous step;

[0013] In the set of mutually exclusive steps corresponding to the previous step, match the mutually exclusive step corresponding to the newly added step;

[0014] If the match is successful, generate an alarm message and freeze the step addition. If the match fails, open the step addition.

[0015] Through the above technical solution, by analyzing each electrical operation step in advance, the operation steps that may cause safety accidents when continuously operated with the operation step are analyzed, that is, the mutually exclusive steps. The set of multiple mutually exclusive steps is called the set of mutually exclusive steps.

[0016] After the set of mutually exclusive steps is established, establish the mapping relationship between each operation step and the set of mutually exclusive steps, that is, make a certain operation step and the set of mutually exclusive steps containing its mutually exclusive steps be associated with each other. During the process of an operator entering an operation step in the operation ticket, for each newly added operation step, obtain the previous step of the newly added step (that is, the previous step and the newly added step are adjacent, the previous step is in front, and the newly added step is behind).

[0017] Based on the previous step, perform a match in the set of mutually exclusive steps corresponding to the previous step to determine whether the set of mutually exclusive steps contains the mutually exclusive step corresponding to the newly added step. If the match is successful, it means that the set of mutually exclusive steps contains the mutually exclusive step corresponding to the newly added step, that is, the previous step and the newly added step are mutually exclusive steps. If executed sequentially, there is a certain safety risk and the operator needs to further verify. At this time, generate an alarm message and freeze the step addition to facilitate the operator to verify whether the newly added step is correct and prevent the addition of further incorrect steps. Further operations can be carried out only after verification.

[0018] If the match fails, it means that the set of mutually exclusive steps does not contain the mutually exclusive step corresponding to the newly added step, that is, the previous step and the newly added step are not mutually exclusive steps. There is no safety risk in executing sequentially. At this time, open the step addition to facilitate the further input of operation steps.

[0019] By checking whether the newly added step and the previous step are mutually exclusive for each newly added operation step, the possibility of the operator entering incorrect operation steps is reduced, thereby reducing the operation risk during the electrical operation process and improving the stability of the operation of substation equipment.

[0020] In a preferred example of the present application, it can be further configured that after each newly added operation step, it further includes:

[0021] If the newly added operation step is the first step of the operation ticket, directly open the step addition.

[0022] Through the above technical solution, if the newly added step is the first operation step of the operation ticket, there is no previous step for the newly added step at this time, and the previous technical solution cannot be run. By determining whether the newly added step is the first step, whether to perform the mutual exclusion step check. That is, if the newly added step is the first step, then directly open the step addition. If the newly added step is not the first step, then perform the mutual exclusion step check for the newly added step.

[0023] In a preferred example of the present application, it can be further configured that after adding the newly added step, it further includes:

[0024] Based on the newly added step, identify the set of mutually exclusive steps corresponding to the newly added step;

[0025] Among the optional steps after the newly added step, perform a warning mark on the optional steps corresponding to the mutually exclusive steps in the set of mutually exclusive steps;

[0026] Based on the warning mark, divide the optional steps after the newly added step into warning steps and regular steps;

[0027] If the step added again is a regular step, open the step addition. If the step added again is a warning step, perform a mutual exclusion check based on the step added again and the newly added step.

[0028] Through the above technical solution, after the operator completes the addition of the newly added step, before adding the next step, it takes a short period of time to know the specific steps of the next step. During this time interval, the system, based on the newly added step, identifies the set of mutually exclusive steps associated with the newly added step.

[0029] Then, among the optional steps after the newly added step, perform a warning mark on the optional steps corresponding to the mutually exclusive steps in the set of mutually exclusive steps, that is, among the optional steps, mark the optional steps that are mutually exclusive with the newly added step as warning marks. The optional steps without warning marks are regular steps. If the step added again is a regular step, open the step addition. If the step added again is a warning step, perform a mutual exclusion check based on the step added again and the newly added step.

[0030] Through the warning analysis of the optional steps, it can be obtained which steps are risky to add and which steps are risk-free, thereby providing a risk estimate for the operator to add steps and improving the work efficiency of adding steps and generating operation tickets.

[0031] In a preferred example of the present application, it can be further configured that after obtaining the previous step of the newly added step, it further includes:

[0032] If there are multiple corresponding previous steps for the newly added step, based on the multiple previous steps, identify the set of mutually exclusive steps corresponding to the multiple previous steps;

[0033] Among the multiple sets of mutually exclusive steps, match the mutually exclusive step corresponding to the newly added step;

[0034] If only one mutually exclusive step is matched, generate an alarm message and freeze the step addition. If the matching fails, open the step addition.

[0035] After a certain operation step, there may be multiple parallel operation steps. After the multiple parallel operation steps are completed, they are aggregated and the next step is executed. Through the above technical solution, if there are multiple previous steps for the newly added step, obtain the set of mutually exclusive steps corresponding to the multiple previous steps, and among the multiple sets of mutually exclusive steps, match the mutually exclusive step corresponding to the newly added step. If only one mutually exclusive step is matched, generate an alarm message and freeze the step addition. If the matching fails, open the step addition. Through this technical solution, the processing of the situation with multiple previous steps is improved to expand the applicable scope of the technical solution.

[0036] In a preferred example of the present application, it can be further configured that if multiple identical mutually exclusive steps are matched and the multiple identical mutually exclusive steps are distributed in more than two sets of mutually exclusive steps, the newly added step is prohibited from being entered in the operation ticket.

[0037] Through the above technical solution, if multiple identical mutually exclusive steps are matched in multiple sets of mutually exclusive steps and the multiple identical mutually exclusive steps are distributed in more than two sets of mutually exclusive steps, it indicates that the newly added step is a common mutually exclusive step of multiple previous steps. If this newly added step is executed after the multiple previous steps, the operation safety risk will be further increased. At this time, directly prohibit the newly added step from being entered in the operation ticket, reduce the possibility of generating and importing an incorrect operation ticket into the mobile terminal, and improve the safety of electrical equipment operation.

[0038] In a preferred example of the present application, it can be further configured that after prohibiting the newly added step from being entered in the operation ticket, it further includes:

[0039] Obtain the operation account information of the operation for which the entry into the operation ticket is prohibited;

[0040] Based on the operation account information, obtain the time span between the previous and current occurrences of the situation where the entry into the operation ticket is prohibited;

[0041] Based on the time span, evaluate the safety operation level of the current operation account.

[0042] Through the above technical solution, after the situation of prohibiting the entry of new steps in the operation ticket occurs, obtain the operation account information where this situation occurs, including the affiliated information of the operation account and the historical records of this situation occurring to the operation account in the past (including the corresponding time of each occurrence of this situation, the time interval between two adjacent occurrences of this situation, etc.).

[0043] After obtaining the time span between the last and current occurrences of the situation of prohibiting the entry of the operation ticket (that is, the time interval between two adjacent occurrences of this situation), evaluate the safety operation level of the current operation account. It can be simply understood as follows: the shorter the time interval, the higher the frequency of incorrect operations by the operation account in a short period of time, and the lower the safety operation level. Conversely, the longer the time interval between two adjacent incorrect operations, the lower the frequency of incorrect operations, and the higher the safety operation level.

[0044] In a preferred example of the present application, it can be further configured that the evaluation of the safety operation level of the current operation account includes:

[0045] Based on multiple preset time span intervals, establish a mapping relationship between multiple safety factors and multiple time span intervals;

[0046] Obtain the time span of the situation where the current operation account prohibits the entry of the operation ticket;

[0047] Based on the time span, identify the time span interval to which the time span belongs;

[0048] Based on the time span interval, obtain the safety factor corresponding to the time span interval;

[0049] Based on the safety factor, evaluate the safety operation level of the current operation account.

[0050] Through the above technical solution, by presetting multiple time span intervals and setting corresponding safety factors for each time span interval, that is, establishing a mapping relationship between multiple safety factors and multiple time span intervals. For example, for a certain time span interval (such as 15 days - 30 days), the safety factor corresponding to this time span interval is 0.7, and the larger the time span, the higher the safety factor.

[0051] According to the specific times of the last and current incorrect operations of the current operation account, calculate the time span, identify the time span interval where the time span is located, and then be able to obtain the safety factor corresponding to the time span interval. At this time, the safety operation level of the operation account can be calculated by combining the safety factor and other information of the operation account, so that the system can conduct an overall evaluation and understanding of the electrical operation safety of different operators according to the safety operation level.

[0052] Second aspect, based on the above digital five-prevention safety control method for overhead distribution lines, the present application provides a digital five-prevention safety control system for overhead distribution lines, adopting the following technical solutions.

[0053] A digital five-prevention safety control system for overhead distribution lines, comprising:

[0054] A step set establishment module: used to establish each operation step and a set of mutually exclusive steps that are mutually exclusive with its steps;

[0055] A mapping relationship establishment module: used to establish the mapping relationship between each operation step and the corresponding set of mutually exclusive steps;

[0056] An acquisition module: used to acquire the previous step of the newly added step;

[0057] An identification module: used to identify the set of mutually exclusive steps corresponding to the previous step;

[0058] A matching module: used to match the mutually exclusive steps corresponding to the newly added step in the set of mutually exclusive steps corresponding to the previous step.

[0059] In summary, the present application includes the following beneficial technical effects:

[0060] 1. By checking whether the newly added operation step and the previous step are mutually exclusive for each newly added operation step, the possibility of the operator inputting incorrect operation steps is reduced, thereby reducing the operation risk during the electrical operation process and improving the stability of the operation of substation equipment;

[0061] 2. Through early warning analysis of the optional steps after the newly added step, it is obtained which steps are risky to add and which steps are risk-free to add, and then risk prediction for step addition can be provided for the operator, improving the work efficiency of step addition and operation ticket generation;

[0062] 3. Based on the time span between two adjacent occurrences of the situation where the newly added step is prohibited from being entered into the operation ticket for an operation account, the safety coefficient of the operation of the corresponding operation account is obtained, so as to calculate the safe operation level of the operation account in combination with the safety coefficient and other information of the operation account, and based on the safe operation level, the electrical operation safety of different operators is comprehensively evaluated and understood. Description of the Drawings

[0063] Figure 1 is a schematic flowchart of five-prevention safety control in an embodiment of the present application.

[0064] Figure 2 is a schematic flowchart of early warning step marking in an embodiment of the present application.

[0065] Figure 3It is a schematic flowchart of the embodiment of the present application for dealing with the situation of multiple previous steps.

[0066] Figure 4 It is a schematic flowchart of the embodiment of the present application for obtaining the time span.

[0067] Figure 5 It is a schematic flowchart of the embodiment of the present application for obtaining the safety factor.

[0068] Figure 6 It is a simplified operation ticket diagram of the embodiment of the present application for the situation of multiple previous steps.

[0069] Figure 7 It is another simplified operation ticket diagram of the embodiment of the present application for the situation of multiple previous steps. Detailed implementation manners

[0070] The following further elaborates on the present application in conjunction with the attached Figure 1 - attached Figure 6 to provide a more detailed description of the present application.

[0071] An embodiment of the present application discloses a digital five-prevention safety control method for overhead lines of a distribution network and a digital five-prevention safety control system for overhead lines of a distribution network. The execution subject of the five-prevention safety control method described herein can be the five-prevention safety control system.

[0072] Referring to the attached Figure 1 shown, a digital five-prevention safety control method for overhead lines of a distribution network includes the following processing steps:

[0073] S101. Establish a set of mutually exclusive steps for each operation step and the mutually exclusive steps thereof.

[0074] In implementation, based on the operation logic and basic specifications of electrical equipment, by analyzing each electrical operation step in advance, the operation steps that may cause safety accidents when continuously operated after this operation step are obtained, that is, the mutually exclusive steps. The set of multiple mutually exclusive steps is called the set of mutually exclusive steps.

[0075] Here, further explanations are made for the mutually exclusive steps and the set of mutually exclusive steps.

[0076] For example, for step A, according to the operation logic and operation specifications of electrical equipment, if three types or three operation steps of B, C, and D are executed immediately after step A, it may cause a safety accident. Then, the three types or three operation steps of B, C, and D are respectively called the mutually exclusive steps of step A, and the set of the three types or three operation steps of B, C, and D is called the set of mutually exclusive steps of step A.

[0077] For the operation process of entering operation tickets for substation electrical equipment, when inputting a certain operation step, it is not simply inputting text. Instead, the Chinese meaning corresponding to each specific operation step (that is, the steps that operators can see through computers or mobile devices) has a certain sentence pattern framework, which can be simply understood as follows.

[0078] For example, when opening the 3# disconnecting switch in Area A, after removing the specific area code, switch code, etc. in this example, the basic sentence pattern framework is to open or close a certain # disconnecting switch in a certain area. And the operation steps and mutually exclusive steps described in this technical solution can be either a specific operation step or the basic sentence pattern framework of the operation step.

[0079] S102. Establish the mapping relationship between each operation step and the corresponding set of mutually exclusive steps.

[0080] In implementation, after the set of mutually exclusive steps is established, establish the mapping relationship between each operation step and the corresponding set of mutually exclusive steps, that is, make a certain operation step and the set of mutually exclusive steps containing its mutually exclusive steps be associated with each other.

[0081] S103. Every time a new operation step is added, obtain the previous step of the new step.

[0082] In implementation, during the process of an operator inputting operation steps in the operation ticket, every time a new operation step is added, obtain the previous step of the new step (that is, the previous step and the new step are adjacent, with the previous step in front and the new step behind).

[0083] The handling situation when there are multiple previous steps for the new step will be specifically described later.

[0084] S104. Based on the previous step, identify the set of mutually exclusive steps corresponding to the previous step.

[0085] In implementation, after obtaining the previous step of the new step, based on this previous step, identify the set of mutually exclusive steps corresponding to the previous step, and this set of mutually exclusive steps contains the mutually exclusive steps that are mutually exclusive to the previous step.

[0086] S105. In the set of mutually exclusive steps corresponding to the previous step, match the mutually exclusive step corresponding to the new step.

[0087] In implementation, in the set of mutually exclusive steps, match the mutually exclusive step corresponding to the newly added step. That is, first simplify and analyze the basic sentence pattern framework of the previous step. For example, if the previous step is: Open the circuit breaker of the 3# disconnecting switch in Area A, then the basic sentence pattern framework after simplification and analysis of this step is: Open or close the circuit breaker of a certain # disconnecting switch in a certain area. And there are multiple mutually exclusive steps in the set of mutually exclusive steps that are mutually exclusive with the above basic sentence pattern framework. At this time, in the set of mutually exclusive steps of the previous step, match the mutually exclusive step with the same basic sentence pattern framework as the newly added step.

[0088] S106. If the match is successful, generate an alarm message and freeze the addition of the step. If the match fails, open the addition of the step.

[0089] In implementation, if the match is successful, it means that the set of mutually exclusive steps contains a mutually exclusive step corresponding to the newly added step, that is, the previous step and the newly added step are mutually exclusive steps. If executed sequentially, there is a certain safety risk and requires the operator to further verify. At this time, generate an alarm message and freeze the addition of the step to facilitate the operator to verify whether the newly added step is correct and prevent the addition of further incorrect steps. Further operations can only be performed after verification.

[0090] If the match fails, it means that the set of mutually exclusive steps does not contain a mutually exclusive step corresponding to the newly added step, that is, the previous step and the newly added step are not mutually exclusive steps. There is no safety risk in executing sequentially. At this time, open the addition of the step to facilitate further input of operation steps.

[0091] In summary, by checking whether the newly added operation step and the previous step are mutually exclusive for each newly added operation step, the possibility of the operator inputting incorrect operation steps is reduced, thereby reducing the operation risk in the electrical operation process and enhancing the stability of the operation of substation equipment.

[0092] In addition, it should be emphasized that in the case where the previous step has been added and checked, generally speaking, there will be no mutual exclusion between the current operation step and the subsequent interval steps, because each check has excluded the possibility that the added step is a mutually exclusive step.

[0093] Refer to the appendix Figure 1 As shown, after each newly added operation step in step S103, the following steps are also included. If the newly added operation step is the first step of the operation ticket, directly open the addition of the step.

[0094] In implementation, if the newly added step is the first operation step of the operation ticket, then there is necessarily no previous step for the newly added step. By determining whether the newly added step is the first step, decide whether to perform the check of the mutually exclusive step. That is, if the newly added step is the first step, directly open the addition of the step. If the newly added step is not the first step, then perform the check processing of the mutually exclusive step check.

[0095] Refer to the attached Figure 2 As shown, after adding the new step, the following processing steps may also be included:

[0096] S201. Based on the new step, identify the set of mutually exclusive steps corresponding to the new step.

[0097] In implementation, "after adding the new step" here means that the previous step and the new step have completed mutual exclusion verification and it is confirmed that there is no operation risk for the new step. After completing the addition of the new step, identify the set of mutually exclusive steps corresponding to the newly added step. That is, for the mutually exclusive steps between the new step and the identified set of mutually exclusive steps, if they are executed sequentially before and after, there will be a safety risk.

[0098] S202. Among the optional steps after the new step, mark the optional steps corresponding to the mutually exclusive steps in the set of mutually exclusive steps with a warning.

[0099] In implementation, for example, the new step is S, and the optional steps after step S include steps A, B, C, and D. The set of mutually exclusive steps corresponding to the matched step S includes steps A and B. At this time, mark steps A and B as warning steps.

[0100] S203. Based on the warning mark, divide the optional steps after the new step into warning steps and normal steps.

[0101] In implementation, continue to understand according to the example in step S202. The optional steps after step S include steps A, B, C, and D. Classify them into warning steps and normal steps according to whether there is mutual exclusion. The warning steps include steps A and B, and the normal steps are C and D.

[0102] S204. If the step added again is a normal step, open the step addition. If the step added again is a warning step, conduct mutual exclusion verification based on the step added again and the new step.

[0103] In implementation, if the step added again is a normal step, open the step addition. If the step added again is a warning step, conduct mutual exclusion verification based on the step added again and the new step. By conducting warning analysis on the optional steps, it can be obtained which steps are risky to add and which steps are risk-free, thereby providing risk estimation for operators when adding steps, improving the work efficiency of adding steps and generating operation tickets, and avoiding the efficiency loss caused by repeated operations (including re-adding steps and entering operation tickets).

[0104] Refer to the attached Figure 3 and the attached Figure 6As shown, after obtaining the previous step of the new step in step S103, the following processing steps may further be included:

[0105] S301. If there are multiple corresponding previous steps for the new step, based on the multiple previous steps, identify the set of mutually exclusive steps corresponding to the multiple previous steps.

[0106] In implementation, after a certain operation step, there may be multiple parallel operation steps. After the multiple parallel operation steps are completed, they are aggregated and the next step is executed. For example, as Figure 6 shown, the new step has two previous steps, and the two previous steps are parallel steps at the same level. The reason for the possible existence of two previous steps is that the on-site execution of the operation ticket is usually carried out by at least two people. One person is responsible for the inspection and verification procedures, and the others are responsible for executing the parallel operation steps. Therefore, in the case of multiple parallel previous steps, they can be executed by multiple operators. After the two previous steps are completed, the non-mutually exclusive new step is executed.

[0107] Since a corresponding set of mutually exclusive steps has been preset for each step, based on the multiple previous steps, multiple corresponding sets of mutually exclusive steps can be matched. Referring to the appendix Figure 6 shown, the new step has two previous steps, and each previous step corresponds to a set of mutually exclusive steps. The set of mutually exclusive steps is represented by the capital letters included in the curly brackets. This appendix is only for easy understanding and does not limit the meaning and protection scope of the set of mutually exclusive steps.

[0108] S302. Among the multiple sets of mutually exclusive steps, match the mutually exclusive steps corresponding to the new step.

[0109] S303. If only one mutually exclusive step is matched, generate an alarm message and freeze the step addition. If the matching is unsuccessful, open the step addition.

[0110] In implementation, if only one mutually exclusive step is matched, continue to take step S301 as an example. Referring to the appendix Figure 6 shown, among the two sets of mutually exclusive steps corresponding to the two previous steps, match the mutually exclusive steps corresponding to the new step. That is, in the set of mutually exclusive steps corresponding to the previous step on the left, there are three mutually exclusive steps A, B, and C. In the set of mutually exclusive steps corresponding to the previous step on the right, there are three mutually exclusive steps D, E, and F. And if the new step is any one of A, B, C, D, E, and F, an alarm message is generated and the step addition is frozen.

[0111] If the matching is unsuccessful, referring to the appendix Figure 6As shown, in the set of mutually exclusive steps corresponding to the previous step on the left, there are three mutually exclusive steps A, B, and C. In the set of mutually exclusive steps corresponding to the previous step on the right, there are three mutually exclusive steps D, E, and F. The new step is G, which is different from any of the steps A, B, C, D, E, and F. Then, the open step is added.

[0112] Refer to the appendix Figure 7 As shown, if multiple identical mutually exclusive steps are matched and these multiple identical mutually exclusive steps are distributed in more than two sets of mutually exclusive steps, then it is prohibited to enter the new step in the operation ticket.

[0113] In implementation, in the set of mutually exclusive steps corresponding to the previous step on the left, there are three mutually exclusive steps A, B, and C. In the set of mutually exclusive steps corresponding to the previous step on the right, there are three mutually exclusive steps A, E, and F. The step A is included in both sets of mutually exclusive steps. Then, it indicates that the added new step is a common mutually exclusive step of multiple previous steps. If this new step is directly executed immediately after multiple previous steps, the operation safety risk will further increase. At this time, it is directly prohibited to enter the new step in the operation ticket, reducing the possibility of generating and importing incorrect operation tickets into the mobile terminal and enhancing the safety of electrical equipment operation.

[0114] Refer to the appendix Figure 4 As shown, after prohibiting the entry of the new step in the operation ticket, the following processing steps may further be included:

[0115] S401. Obtain the operation account information where the prohibition of entering the operation ticket occurs.

[0116] In implementation, after the situation where it is prohibited to enter the new step in the operation ticket occurs, obtain the operation account information where this situation occurs, including the affiliated information of the operation account and the historical records of this situation for the operation account in the past. This historical record includes the corresponding time for each occurrence of this situation, the time interval between two adjacent occurrences of this situation, and so on.

[0117] S402. Based on the operation account information, obtain the time span between the previous and current occurrences of the situation where it is prohibited to enter the operation ticket.

[0118] S403. Based on the time span, evaluate the safety operation level of the current operation account.

[0119] In implementation, the shorter the time span, the higher the frequency of incorrect operations of this operation account within a short period of time and the lower the safety operation level; on the contrary, the longer the time span between two adjacent incorrect operations, the lower the frequency of incorrect operations and the higher the safety operation level.

[0120] Refer to the appendix Figure 5As shown, in step S403, the security operation level of the current operation account can be evaluated, which may include the following processing steps:

[0121] S501. Based on multiple preset time-span intervals, establish a mapping relationship between multiple safety factors and multiple time-span intervals.

[0122] In implementation, a corresponding safety factor is set for each time-span interval, that is, a mapping relationship between multiple safety factors and multiple time-span intervals is established. For example, for a certain time-span interval (such as 15 days - 30 days), the safety factor corresponding to this time-span interval is 0.7. The larger the time-span, the higher the safety factor.

[0123] S502. Obtain the time-span when the current operation account has a situation of prohibiting the entry of operation tickets.

[0124] In implementation, according to the specific dates (which can also be specific to hours or minutes) corresponding to the current and last occurrences of the situation of prohibiting the entry of operation tickets for the current operation account, the time-span is then calculated.

[0125] S503. Based on the time-span, identify the time-span interval to which the time-span belongs.

[0126] S504. Based on the time-span interval, obtain the safety factor corresponding to the time-span interval.

[0127] S505. Based on the safety factor, evaluate the security operation level of the current operation account.

[0128] In implementation, after obtaining the safety factor, at this time, the safety factor and other information of the operation account can be combined to calculate the security operation level of the operation account, so that the system can conduct overall evaluation and understanding of the electrical operation safety of different operators according to the security operation level.

[0129] Based on the above method for digital five-prevention safety control of overhead lines in a distribution network, the present application also provides a digital five-prevention safety control system for overhead lines in a distribution network, adopting the following technical solutions.

[0130] A digital five-prevention safety control system for overhead lines in a distribution network includes:

[0131] A step set establishment module: used to establish a set of mutually exclusive steps for each operation step and the steps that are mutually exclusive with it.

[0132] A mapping relationship establishment module: used to establish a mapping relationship between each operation step and the corresponding set of mutually exclusive steps.

[0133] An acquisition module: used to acquire the previous step of the newly added step.

[0134] Recognition module: used to recognize the set of mutually exclusive steps corresponding to the previous step.

[0135] Matching module: used to match the mutually exclusive step corresponding to the new step in the set of mutually exclusive steps corresponding to the previous step.

[0136] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application in sequence. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A digital five-defense safety management and control method for overhead lines in a distribution network, characterized in that: include: Establish each operation step and its mutually exclusive set of steps; Establish a mapping relationship between each operation step and the corresponding set of exclusive steps; Every time an operation step is added, the previous step of the new step is obtained; Based on the previous step, identifying a set of exclusive steps corresponding to the previous step; In the exclusive step set corresponding to the previous step, matching the exclusive step corresponding to the newly added step; If the match is successful, an alarm message is generated and step addition is frozen. If the match is unsuccessful, step addition is enabled. After adding the new steps, the method further includes: Based on the newly added steps, identifying a set of exclusive steps corresponding to the newly added steps; Among the optional steps after the newly added step, the optional steps corresponding to the exclusive steps in the exclusive step set are marked with warnings; Based on the warning mark, the optional steps after the newly added step are divided into warning steps and regular steps; If the re-added step is a regular step, the step is opened for addition; if the re-added step is a warning step, an exclusive check is performed based on the re-added step and the newly added step.

2. According to claim 1, a five-defense safety management and control method based on digitalization of overhead lines in distribution network is characterized in that: After each newly added operation step, the following steps are also included: If the newly added operation step is the first step of the operation ticket, the step will be directly opened for addition.

3. According to claim 1, a five-defense safety management and control method based on digitalization of overhead lines in distribution network is characterized in that: After the previous step of obtaining the newly added step, the method further includes: If the newly added step has multiple corresponding previous steps, based on the multiple previous steps, identifying a set of exclusive steps corresponding to the multiple previous steps; In the plurality of mutually exclusive step sets, matching mutually exclusive steps corresponding to the newly added steps; If only one exclusive step is matched, an alarm message is generated and step addition is frozen. If the match is unsuccessful, step addition is enabled.

4. A digital five-defense safety management and control method based on overhead line of distribution network according to claim 3, characterized in that: If multiple identical exclusive steps are matched, and the multiple identical exclusive steps are distributed in more than two exclusive step sets, it is prohibited to enter the new steps in the operation ticket.

5. A digital five-defense safety management and control method based on overhead line of distribution network according to claim 4, characterized in that: After the prohibition of entering the additional step in the operation ticket, the method further includes: Obtain the operation account information of the prohibited operation ticket; Based on the operation account information, obtain the time span between the last and current prohibition on entering operation tickets; Based on the time span, the security operation level of the current operating account is evaluated.

6. A digital five-defense safety management and control method based on overhead line of distribution network according to claim 5, characterized in that: The security operation level of the current operating account is evaluated, including: Based on multiple preset time span intervals, a mapping relationship between multiple safety factors and multiple time span intervals is established; Get the time span when the current operating account is prohibited from entering operation tickets; Based on the time span, identifying a time span interval to which the time span belongs; Based on the time span interval, obtaining a safety factor corresponding to the time span interval; Based on the safety factor, a safety operation level assessment is performed on the current operating account.

7. A digital five-defense safety management and control system based on overhead lines of a distribution network, based on the digital five-defense safety management and control method based on overhead lines of a distribution network according to claim 1, characterized in that: include: Step set establishment module: used to establish each operation step and the exclusive step set that is exclusive to it; Mapping relationship establishment module: used to establish the mapping relationship between each operation step and the corresponding exclusive step set; Acquisition module: used for each new operation step, to obtain the previous step of the new step; Identification module: used for identifying, based on the previous step, a set of exclusive steps corresponding to the previous step; Matching module: used to match the exclusive step corresponding to the newly added step in the exclusive step set corresponding to the previous step; if the match is successful, an alarm message is generated and the step addition is frozen; if the match is unsuccessful, the step addition is enabled.

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