Electric power communication network structure safety assessment method and system

Abstract

The invention provides an electric power communication network structure security assessment method and system, and belongs to the technical field of electric power communication networks, and the method specifically comprises the steps: determining the distribution aggregation state of the communication flow of the electric power communication network according to the network load aggregation coefficient and distribution data of a network data aggregation link of the electric power communication network, when the distribution aggregation state of the communication flow of the power communication network does not meet the requirement, determining the fault probabilities of different network data aggregation links and fault hidden danger links based on the historical operation data of the communication equipment of different network data aggregation links, and based on the bearing communication data of the different fault hidden danger links, determining the fault probability of the different network data aggregation links and the fault hidden danger links. And determining the influence condition of the bearing communication data on other communication links in the communication network when the hidden fault link fails, and determining the evaluation result of the structural security state of the power communication network by combining the fault probability of the hidden fault link. Therefore, the accuracy of the evaluation result of the structural security state of the power communication network is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric power communication networks, and in particular relates to a method and system for evaluating the structural safety of electric power communication networks. Background Art

[0002] The structural safety assessment of the power communication network is to select appropriate assessment indicators based on factors such as communication equipment, personnel quality, environment and weather involved in the power communication process, and then try to establish a risk assessment indicator system to achieve structural safety assessment of the power communication network and ensure the safe and reliable operation of the power communication network, which is of great significance to improving the management level of power communication management.

[0003] In order to solve the above technical problems, in the specific existing technical solutions, for example, CN202311316425.9 "Integrated method of intelligent assessment and intelligent early warning of power communication network risks" uses the method of integrating intelligent assessment and early warning to quickly and accurately identify potential risks and problems, and use the meta-reinforcement learning algorithm to search for the optimal strategy in a complex decision space, thereby improving the efficiency of decision-making. However, the above technical solutions have the following technical problems: In the process of conducting security assessment of the structure of the power communication network, the existing technical solutions ignore the transmission delays of different communication data. In some business scenarios, the transmission delay of communication data may be affected by external unexpected factors or internal network traffic. If the transmission delay of communication data is not considered, the reliability of the security assessment results of the power communication network cannot be guaranteed.

[0004] In response to the above technical problems, the present invention provides a method and system for evaluating the structural security of a power communication network. Summary of the invention

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions: In order to solve the above technical problems, the present invention provides the following technical solutions to achieve the purpose of the present invention: According to one aspect of the present invention, a method for evaluating the structural security of a power communication network is provided, which specifically includes: S1 analyzes the power communication network to determine the network transmission flow of different communication links on different dates, and determines the network data aggregation link and the network load aggregation coefficient in the communication link based on the analysis results of the network transmission flow on different dates; S2 determines the distribution and aggregation state of the communication traffic of the power communication network based on the network load aggregation coefficient and distribution data of the network data aggregation link of the power communication network; S3: when the distribution and aggregation state of the communication traffic of the power communication network does not meet the requirements, determining the failure probabilities and potential failure links of different network data aggregation links based on the historical operation data of the communication devices of different network data aggregation links; S4 determines the impact of the bearer communication data on other communication links in the communication network when the fault potential link fails based on the bearer communication data of different fault potential links, and determines the evaluation result of the structural safety status of the power communication network in combination with the failure probability of the fault potential link.

[0006] The beneficial effects of the present invention are: The distribution and aggregation state of the communication traffic of the power communication network is determined based on the network load aggregation coefficient and distribution data of the network data aggregation link of the power communication network, thereby realizing the determination of the distribution and aggregation state of the communication traffic of the power communication network from two perspectives: the network load aggregation and distribution in the communication link of the power communication network, and further realizing the screening of the power communication network with relatively concentrated network traffic distribution, and also laying the foundation for further evaluation of the structural safety status of the power communication network.

[0007] The structural safety status of the power communication network is assessed by utilizing the impact of the communication data carried on other communication links in the communication network and combining the failure probability of the potential fault links. This avoids the technical problem of inaccurate structural safety status assessment results caused by single consideration of network aggregation. It fully considers the impact on other communication links and ensures the comprehensiveness and accuracy of the structural safety status assessment results of the power communication network.

[0008] A further technical solution is that the analysis result of the network transmission traffic includes the network transmission traffic of the communication link on different dates.

[0009] A further technical solution is that the method for determining the network data aggregation link in the communication link is: Determining the network transmission traffic of the communication link on different dates based on the analysis result of the network transmission traffic; Determine the date when the network transmission flow rate is greater than the preset flow rate according to the network transmission flow rate on different dates, and use it as the transmission busy date; The network load aggregation coefficient of the communication link is determined according to the proportion of the number of the busy transmission days, and based on the network load aggregation coefficient, it is determined whether the communication link is a network data aggregation link.

[0010] A further technical solution is that when the network load aggregation coefficient of the communication link is greater than a preset aggregation coefficient threshold, the communication link is determined to be a network data aggregation link.

[0011] A further technical solution is that the method for determining the evaluation result of the structural safety status of the power communication network is: Determine the newly added network transmission traffic of other communication links based on the impact of the bearer communication data on other communication links in the communication network, and determine the link impact coefficient on other communication links based on the proportion of the newly added network transmission traffic in the network transmission traffic of the other communication links; Determine the failure impact coefficients of different potential failure links based on the product of the average value of the link impact coefficients of other communication links and the failure probability of the potential failure link; The structural safety status value of the power communication network is determined by the fault influence coefficients of different fault potential links, and the structural safety status value is used to determine the evaluation result of the structural safety status of the power communication network.

[0012] A further technical solution is that the structural safety status value of the power communication network is determined according to the product of the average value of the failure influence coefficients of different potential fault links and the proportion of the potential fault links in the number of the communication links.

[0013] A further technical solution is that the evaluation results of the structural safety status of the power communication network include hidden dangers, risks and safety, which are specifically determined according to the preset interval in which the structural safety status value is located.

[0014] In a second aspect, the present invention provides a computer system comprising: a memory and a processor connected in communication, and a computer program stored in the memory and capable of running on the processor, characterized in that: when the processor runs the computer program, it executes the above-mentioned method for assessing the structural safety of a power communication network.

[0015] Other features and advantages will be described in the following description, and partly become apparent from the description, or understood by practicing the invention. The purpose and other advantages of the invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0018] Figure 1 It is a flow chart of a method for evaluating the structural security of a power communication network; Figure 2 is a flow chart of a method for determining a network data aggregation link in a communication link; Figure 3 It is a flow chart of a method for determining a distribution and aggregation state of communication traffic of a power communication network; Figure 4 It is a framework diagram of a computer system. DETAILED DESCRIPTION

[0019] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0020] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0021] Example 1 To solve the above problems, according to one aspect of the present invention, Figure 1 According to one aspect of the present invention, a method for evaluating the structural security of a power communication network is provided, which specifically includes: S1 analyzes the power communication network to determine the network transmission flow of different communication links on different dates, and determines the network data aggregation link and the network load aggregation coefficient in the communication link based on the analysis results of the network transmission flow on different dates; Furthermore, the analysis result of the network transmission traffic includes the network transmission traffic of the communication link on different dates.

[0022] Specifically, Figure 2 As shown, the method for determining the network data aggregation link in the communication link is: Determining the network transmission traffic of the communication link on different dates based on the analysis result of the network transmission traffic; Determine the date when the network transmission flow rate is greater than the preset flow rate according to the network transmission flow rate on different dates, and use it as the transmission busy date; The network load aggregation coefficient of the communication link is determined according to the proportion of the number of the busy transmission days, and based on the network load aggregation coefficient, it is determined whether the communication link is a network data aggregation link.

[0023] It should be noted that when the network load aggregation coefficient of the communication link is greater than a preset aggregation coefficient threshold, the communication link is determined to be a network data aggregation link.

[0024] S2 determines the distribution and aggregation state of the communication traffic of the power communication network based on the network load aggregation coefficient and distribution data of the network data aggregation link of the power communication network; It should be noted that the distribution data of the network data aggregation link includes the distribution quantity of the network data aggregation link in different communication areas in the power communication network.

[0025] It can be understood that the communication area is divided according to the power supply area corresponding to the power communication network.

[0026] Specifically, Figure 3 As shown, the method for determining the distribution and aggregation state of the communication traffic of the power communication network is: Based on the distribution data of the network data aggregation link of the power communication network, the distribution quantity of different communication areas in the power communication network is performed; Determine the regional aggregation coefficients of different communication areas by the product of the distribution quantity ratios of different communication areas and the network load aggregation coefficient of the network data aggregation link; An aggregation evaluation amount of the power communication network is determined based on regional aggregation coefficients of different communication areas, and a distribution aggregation state of communication traffic of the power communication network is determined by the aggregation evaluation amount.

[0027] Further, the distribution and aggregation state of the communication traffic of the power communication network is determined according to a preset aggregation state corresponding to the aggregation evaluation amount of the power communication network.

[0028] It can be understood that the preset aggregation state includes a flow aggregation state, a flow dispersion state and a flow balance state.

[0029] In another possible embodiment, the method for determining the distribution and aggregation state of the communication traffic of the power communication network is: Based on the distribution data of the network data aggregation links of the power communication network, the number of network data aggregation links in the power communication network is determined, and when the number of the network data aggregation links is greater than the preset number of aggregation links: it is determined that the distribution aggregation state of the communication traffic of the power communication network does not meet the requirements; When the number of the network data aggregation links is not greater than the preset number of aggregation links: Determining network data aggregation links whose network load aggregation coefficients are greater than preset load aggregation coefficients according to network load aggregation coefficients of different network data aggregation links, and when the number of network data aggregation links whose network load aggregation coefficients are greater than the preset load aggregation coefficients does not meet the requirements, determining that the distribution aggregation state of the communication flow of the power communication network does not meet the requirements; When the network load aggregation coefficient is greater than the preset load aggregation coefficient and the number of network data aggregation links meets the requirement: Based on the distribution data of the network data aggregation link, the distribution number of different communication areas in the power communication network is calculated, and the distribution number is used to determine the screening communication area in which the network data aggregation link exists in the communication area, and when the number of the screening communication area does not meet the requirement, it is determined that the distribution aggregation state of the communication flow of the power communication network does not meet the requirement; When the number of filtered communication areas meets the requirement: Determine the regional aggregation coefficients of different communication areas by the product of the distribution number ratios of different communication areas and the network load aggregation coefficients of the network data aggregation links; when there are communication areas with regional aggregation coefficients greater than a preset aggregation coefficient, and when the number of communication areas with regional aggregation coefficients greater than the preset aggregation coefficient does not meet the requirements, it is determined that the distribution aggregation state of the communication flow of the power communication network does not meet the requirements; When there is no communication area with a regional clustering coefficient greater than the preset clustering coefficient or the number of communication areas with a regional clustering coefficient greater than the preset clustering coefficient meets the requirement: An aggregation evaluation amount of the power communication network is determined based on regional aggregation coefficients of different communication areas, and a distribution aggregation state of communication traffic of the power communication network is determined by the aggregation evaluation amount.

[0030] S3: when the distribution and aggregation state of the communication traffic of the power communication network does not meet the requirements, determining the failure probabilities and potential failure links of different network data aggregation links based on the historical operation data of the communication devices of different network data aggregation links; Furthermore, the method for determining the failure probability of the network data aggregation link is: Using the communication device of the network data aggregation link as a link-associated device; According to the historical operation data of the link-associated devices, the link-associated devices that have failed are determined and used as associated fault devices; A failure probability of the network data aggregation link is determined based on the number of associated failed devices.

[0031] Specifically, the failure probability of the network data aggregation link is determined according to the ratio of the number of faulty devices associated with the network data aggregation link.

[0032] It should also be noted that the method for determining the failure probability of the network data aggregation link is: S31: using the communication device of the network data aggregation link as a link-associated device, determining the link-associated device that has failed based on the historical operation data of the link-associated device, and using it as the associated fault device, determining the number of network attacks on the network aggregation link and the duration of different grid attack times based on the network attack data of the network data aggregation link, and determining the grid attack anomaly coefficient of the network aggregation link based on the number of network attacks and the duration of different grid attack times; S32 determines the historical failure times of different associated fault devices according to the historical operation data of different associated fault devices, and determines the device failure probabilities of different associated fault devices based on the historical failure times; S33 determines the failure probability of the network data aggregation link based on the device failure probabilities of different associated fault devices and the network attack anomaly coefficient.

[0033] Further, when the failure probability of the network data aggregation link is not within a preset probability interval, it is determined that the network data aggregation link is not a potential failure link.

[0034] S4 determines the impact of the bearer communication data on other communication links in the communication network when the fault potential link fails based on the bearer communication data of different fault potential links, and determines the evaluation result of the structural safety status of the power communication network in combination with the failure probability of the fault potential link.

[0035] It can be understood that the impact of other communication links in the communication network includes the newly added network transmission traffic of other communication links in the communication network and the proportion of the newly added network transmission traffic in the network transmission traffic of the other communication links.

[0036] Specifically, the method for determining the evaluation result of the structural safety status of the power communication network is: Determine the newly added network transmission traffic of other communication links based on the impact of the bearer communication data on other communication links in the communication network, and determine the link impact coefficient on other communication links based on the proportion of the newly added network transmission traffic in the network transmission traffic of the other communication links; Determine the failure impact coefficients of different potential failure links based on the product of the average value of the link impact coefficients of other communication links and the failure probability of the potential failure link; The structural safety status value of the power communication network is determined by the fault influence coefficients of different fault potential links, and the structural safety status value is used to determine the evaluation result of the structural safety status of the power communication network.

[0037] Furthermore, the structural safety status value of the electric power communication network is determined according to the product of the average value of the failure influence coefficients of different potential fault links and the proportion of the potential fault links in the number of the communication links.

[0038] It can be understood that the evaluation results of the structural safety status of the power communication network include hidden dangers, risks and safety, which are specifically determined according to the preset interval in which the structural safety status value is located.

[0039] Example 2 Second, as Figure 4 As shown, the present invention provides a computer system, comprising: a memory and a processor connected in communication, and a computer program stored in the memory and capable of running on the processor, characterized in that: when the processor runs the computer program, the above-mentioned method for assessing the structural safety of a power communication network is executed.

[0040] In another embodiment, the method for determining the network data aggregation link in the communication link is: Determine the network transmission traffic of the communication link on different dates based on the analysis result of the network transmission traffic, and when the average value of the network transmission traffic on different dates is less than a preset traffic threshold, determine that the communication link does not belong to the network data aggregation link; When the average value of network transmission traffic on different dates is not less than the preset traffic threshold: Determine the date when the network transmission flow is greater than a preset flow according to the network transmission flow on different dates, and use it as a busy transmission date. When the number of busy transmission dates accounts for less than the preset number, determine that the communication link does not belong to the network data aggregation link; When the proportion of busy transmission days is not less than the preset proportion: When the number ratio of the busy transmission date is within the preset number ratio range: Based on the network transmission traffic in different time periods on different dates, the traffic aggregation time periods on different dates are determined. When the number of traffic aggregation time periods of the communication link is less than the number of preset time periods, it is determined that the communication link does not belong to the network data aggregation link. When the number of traffic aggregation periods of the communication link is not less than the number of preset periods and not greater than the number of preset aggregation periods: Determine the traffic aggregation coefficients of different dates according to the number of traffic aggregation periods of different dates, and when there is no date with a traffic aggregation coefficient greater than a preset aggregation coefficient, determine that the communication link does not belong to a network data aggregation link; When the number of busy transmission dates is not within the preset number ratio range or the number of traffic concentration periods of the communication link is greater than the preset number of concentration periods or there is a date with a traffic concentration coefficient greater than the preset concentration coefficient: The network load aggregation coefficient of the communication link is determined according to the proportion of the number of the busy transmission dates and the traffic aggregation coefficients of different busy transmission dates, and whether the communication link is a network data aggregation link is determined based on the network load aggregation coefficient.

[0041] Optionally, the above step S31 includes steps S311-S313, which are specifically: S311: When the communication device of the network data aggregation link is used as a link-associated device and it is determined according to the historical operation data of the link-associated device that there is no link-associated device that has failed in the network data aggregation link, the process proceeds to step S312; when there is a link-associated device that has failed in the network data aggregation link, the process proceeds to step S313; S312: When it is determined that the network data aggregation link does not have the number of network attacks based on the network attack data of the network data aggregation link, it is determined that the network data aggregation link does not belong to a potential fault link. When the network aggregation link has the number of network attacks, the process proceeds to step S313; S313: taking the link-associated device that has experienced a fault as an associated fault device, and determining the number of network attacks on the network aggregation link based on the network attack data of the network data aggregation link; when the number of network attacks on the network aggregation link is greater than a preset number of attacks or the number of associated fault devices does not meet the requirement, determining that the network data aggregation link does not belong to a potential fault link; when the number of network attacks on the network aggregation link is not greater than a preset number of attacks or the number of associated fault devices meets the requirement, proceeding to step S314; S314 and the duration of different grid attack times are determined, and the grid attack anomaly coefficient of the network aggregation link is determined based on the network attack times and the duration of different grid attack times. When the network attack anomaly coefficient of the network aggregation link does not meet the requirements, it is determined that the network data aggregation link does not belong to a potential fault link. When the network attack anomaly coefficient of the network aggregation link meets the requirements, enter step S32.

[0042] Optionally, the above step S32 includes steps S321-S323, specifically: S321 determines the historical fault times of different associated fault devices according to the historical operation data of different associated fault devices. When the total historical fault times of different associated fault devices are less than the preset fault times, the process proceeds to step S322. When the total historical fault times of different associated fault devices are not less than the preset fault times, the process proceeds to step S323. When it is determined in step S322 that there is an associated fault device with a historical fault number greater than the preset fault number based on the historical fault number of the associated fault device, the process proceeds to step S323; when it is determined that there is an associated fault device with a historical fault number greater than the preset fault number, the process proceeds to step S324; S323: obtaining the number of the associated faulty devices. When the number of the associated faulty devices is within a preset faulty device number interval, determining that the network data aggregation link does not belong to a fault potential link. When the number of the associated faulty devices is not within the preset faulty device number interval, proceeding to step S324. S324 determines the device failure probability of different associated fault devices based on the historical failure times, and proceeds to step S33.

[0043] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment, and non-volatile computer storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0044] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0045] The above description is only one or more embodiments of this specification and is not intended to limit this specification. For those skilled in the art, one or more embodiments of this specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included in the scope of the claims of this specification.

Claims

1. A method for evaluating the structural security of a power communication network, characterized in that: Specifically include: Analyze the power communication network to determine the network transmission flow of different communication links on different dates, and determine the network data aggregation link and the network load aggregation coefficient in the communication link based on the analysis results of the network transmission flow on different dates; Determine the distribution and aggregation state of the communication traffic of the power communication network based on the network load aggregation coefficient and distribution data of the network data aggregation link of the power communication network; When the distribution and aggregation state of the communication traffic of the power communication network does not meet the requirements, determining the failure probabilities and potential failure links of different network data aggregation links based on the historical operation data of the communication devices of different network data aggregation links; Based on the bearer communication data of different fault potential links, the impact of the bearer communication data on other communication links in the communication network when the fault potential link fails is determined, and the evaluation result of the structural safety status of the power communication network is determined in combination with the failure probability of the fault potential link.

2. The method for evaluating the structural safety of a power communication network according to claim 1, characterized in that: The analysis result of the network transmission traffic includes the network transmission traffic of the communication link on different dates.

3. The method for evaluating the structural safety of a power communication network according to claim 1, characterized in that: The method for determining the network data aggregation link in the communication link is: Determining the network transmission traffic of the communication link on different dates based on the analysis result of the network transmission traffic; Determine the date when the network transmission flow rate is greater than the preset flow rate according to the network transmission flow rate on different dates, and use it as the transmission busy date; The network load aggregation coefficient of the communication link is determined according to the proportion of the number of the busy transmission days, and based on the network load aggregation coefficient, it is determined whether the communication link is a network data aggregation link.

4. The method for evaluating the structural safety of a power communication network according to claim 3, characterized in that: When the network load aggregation coefficient of the communication link is greater than a preset aggregation coefficient threshold, the communication link is determined to be a network data aggregation link.

5. The method for evaluating the structural safety of a power communication network according to claim 1, wherein: The distribution data of the network data aggregation link includes the distribution quantity of the network data aggregation link in different communication areas in the electric power communication network.

6. The method for evaluating the structural safety of a power communication network according to claim 5, characterized in that: The communication area is divided according to the power supply area corresponding to the power communication network.

7. The method for evaluating the structural security of a power communication network according to claim 1, characterized in that: The method for determining the evaluation result of the structural safety status of the power communication network is: Determine the newly added network transmission traffic of other communication links based on the impact of the bearer communication data on other communication links in the communication network, and determine the link impact coefficient on other communication links based on the proportion of the newly added network transmission traffic in the network transmission traffic of the other communication links; Determine the failure impact coefficients of different potential failure links based on the product of the average value of the link impact coefficients of other communication links and the failure probability of the potential failure link; The structural safety status value of the power communication network is determined by the fault influence coefficients of different fault potential links, and the structural safety status value is used to determine the evaluation result of the structural safety status of the power communication network.

8. The method for evaluating the structural safety of a power communication network according to claim 7, characterized in that: The structural safety status value of the electric power communication network is determined according to the product of the average value of the failure influence coefficients of different potential fault links and the proportion of the potential fault links in the number of the communication links.

9. The method for evaluating the structural safety of a power communication network according to claim 1, characterized in that: The evaluation results of the structural safety status of the power communication network include hidden dangers, risks and safety, which are specifically determined according to the preset interval in which the structural safety status value is located.

10. A computer system comprising: A memory and a processor in communication connection, and a computer program stored in the memory and capable of running on the processor, characterized in that: when the processor runs the computer program, a method for evaluating the structural safety of a power communication network as described in any one of claims 1 to 9 is executed.

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