Power communication network fault handling method based on security analysis

Abstract

The invention discloses an electric power communication network fault handling method based on security analysis, and relates to the technical field of electric power, and the method comprises the steps: obtaining fault data of an electric power communication network, and carrying out the data analysis of the fault data, and obtaining a fault reason; based on the fault reason, extracting an emergency scheme corresponding to the fault reason, and performing simulation implementation on the emergency scheme to obtain application defect data of the emergency scheme; performing security analysis on the application defect data to obtain an application security risk of the emergency scheme, and performing utilization rate analysis on the application defect data to obtain resource utilization flexibility of the emergency scheme; based on the safety risk, obtaining a risk emphasis of the safety risk, and performing risk adjustment on the emergency scheme according to the risk emphasis; and based on the resource utilization flexibility, waste redundant resources in the emergency scheme are obtained, and resource disposal is carried out according to the redundant resources. The method has the effect of improving the safety and flexibility of the emergency scheme of the power communication network in the actual use process.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a method for handling faults in an electric power communication network based on security analysis. Background Art

[0002] The power communication network is a dedicated communication network for power systems, ensuring their safe and stable operation and considered a critical infrastructure. Its primary function is to ensure the safe, stable, and economical operation of the power grid. When grid problems arise or grid information and data need to be transmitted, the power communication network is needed to transmit this information or data.

[0003] The power communication network may also fail during use. Once a failure occurs in the power communication network, information about the power system cannot be transmitted in a timely manner, which in turn leads to problems in power distribution in the power system, resulting in power system failures and economic losses.

[0004] In existing technology, when a power communication network failure occurs, it is typically handled using a pre-set emergency plan. This involves first ensuring the network is operational, then manually locating the fault location, and finally repairing the problem. This mechanical approach to emergency plans is inflexible and wastes network resources. Summary of the Invention

[0005] The purpose of the present invention is to provide a power communication network fault handling method based on safety analysis to solve the problems raised in the above background technology.

[0006] This application provides a method for handling power communication network faults based on security analysis, the method comprising the following steps:

[0007] Acquire fault data of the power communication network, perform data analysis on the fault data, and obtain the cause of the fault;

[0008] Based on the fault cause, extracting the emergency plan corresponding to the fault cause, simulating the implementation of the emergency plan, and obtaining application defect data of the emergency plan;

[0009] Performing a security analysis on the application defect data to obtain the application security risk of the emergency plan, and performing a utilization analysis on the application defect data to obtain the resource utilization flexibility of the emergency plan;

[0010] Based on the security risk, obtaining a risk emphasis of the security risk, and performing risk adjustment on the emergency plan according to the risk emphasis;

[0011] Based on the resource utilization flexibility, redundant resources wasted in the emergency plan are obtained, and resource disposal is performed according to the redundant resources.

[0012] Preferably, the steps of obtaining fault data of the power communication network, performing data analysis on the fault data, and obtaining the cause of the fault are specifically as follows:

[0013] Acquiring fault data of the power communication network, extracting fault attributes of the power communication network based on the fault data, and performing weighted processing on the fault attributes to obtain weighted fault attributes;

[0014] Arranging and classifying the fault data to obtain multiple fault data sets, and establishing associations between the multiple fault data sets to generate a data set network;

[0015] Performing weighted parallel data mining on the data set network to obtain the fault range, fault requirements, and fault phenomena of the power communication network;

[0016] Based on the weighted fault attributes and the fault requirements, a binary detection is performed on the fault range to determine the fault location, and the fault cause is obtained in combination with the fault location and the fault phenomenon.

[0017] Preferably, based on the fault cause, extracting the emergency plan corresponding to the fault cause, simulating the implementation of the emergency plan, and obtaining the application defect data of the emergency plan, specifically comprises:

[0018] Based on the cause of the fault, searching for an emergency solution corresponding to the cause of the fault in a pre-established emergency solution library;

[0019] Acquiring construction data of the electric power communication network in the fault range, and generating a simulated fault environment based on the construction data;

[0020] Based on the simulated fault environment, the emergency plan is simulated and implemented in the fault simulation environment to obtain simulation implementation data;

[0021] A data defect standard is established, and the simulation implementation data is screened using the data defect standard as a screening condition to obtain application defect data.

[0022] Preferably, the step of performing security analysis on the application defect data to obtain the application security risk of the emergency plan is specifically:

[0023] Extracting route planning information, channel robustness data, data loss information, and data flow information from the application defect data based on the application defect data;

[0024] Obtaining route channel risks in the emergency plan based on the route planning information and the channel robustness data;

[0025] Obtaining data security risks in the emergency plan based on the data loss information and the data flow information;

[0026] The application security risk of the emergency plan is obtained by combining the route channel risk and the data security risk.

[0027] Preferably, the step of performing utilization analysis on the application defect data to obtain the resource utilization flexibility of the emergency plan is specifically:

[0028] Based on the application defect data, the application defect data is cleaned, and the cleaned application defect data is screened to obtain a fault point of the power communication network and a coverage range of the emergency plan for the fault point;

[0029] According to the fault point and the coverage area, obtaining the amount of available resources of the power communication network in the coverage area, and extracting usage information of the amount of available resources;

[0030] Comparing the available resources with the emergency resources provided by the emergency plan to obtain the amount of resource waste of the emergency plan;

[0031] The resource utilization flexibility of the emergency plan is obtained according to the resource waste amount and the usage information of the available resource quantity.

[0032] Preferably, the steps of obtaining the risk emphasis of the security risk based on the security risk and adjusting the risk of the emergency plan according to the risk emphasis are specifically:

[0033] Based on the security risk, performing risk bias identification on the security risk to obtain the risk emphasis of the security risk;

[0034] Obtaining the risk type of the security risk according to the risk emphasis, extracting the emphasis weight of the risk emphasis, and obtaining the risk level according to the emphasis weight;

[0035] Determining whether the risk level exceeds a preset level threshold, and if it is determined that the risk level exceeds the level threshold, predicting how the security risk will occur based on the risk type;

[0036] According to the occurrence mode, a response strategy for the security risk is generated, and risk adjustment is performed on the emergency plan according to the response strategy.

[0037] Preferably, based on the resource utilization flexibility, the steps of obtaining redundant resources wasted in the emergency plan and performing resource disposal according to the redundant resources are specifically as follows:

[0038] Extracting the total amount of resources in the emergency plan, and screening the total amount of resources according to the resource utilization flexibility to obtain redundant resources wasted in the emergency plan;

[0039] Based on the redundant resources, identifying a resource allocation position of the redundant resources to obtain a redundant position of the redundant resources;

[0040] Based on the redundant position, searching for a resource location corresponding to the redundant position on the power communication network;

[0041] Obtaining a reliability value of the communication resource at the resource location according to the resource location, and determining whether the reliability value is higher than a preset reliability threshold;

[0042] If it is determined that the reliability value is greater than or equal to the reliability threshold, the redundant resources are recycled; if it is determined that the reliability value is less than the reliability threshold, the redundant resources are used to replace the communication resources.

[0043] Preferably, if it is determined that the reliability value is greater than or equal to the reliability threshold, the redundant resources are recycled; if it is determined that the reliability value is less than the reliability threshold, after the step of replacing the communication resources with the redundant resources, the process further includes:

[0044] Acquiring a resource type of the redundant resource, and performing matching on the power communication network according to the resource type to obtain matching resources on the power communication network;

[0045] Comparing the redundant resources with the matching resources for overlap, and obtaining a coverage ratio of the redundant resources to the matching resources;

[0046] If the coverage is greater than 100%, comparing the reliability values ​​of the redundant resources with the matching resources;

[0047] If it is determined that the reliability value of the redundant resource is greater than the reliability value of the matching resource, replacing the matching resource with the redundant resource;

[0048] If it is determined that the reliability value of the redundant resource is less than or equal to the reliability value of the matching resource, the redundant resource is recycled.

[0049] In summary, this application includes at least one of the following beneficial technical effects:

[0050] By analyzing fault data from the power communication network, the cause of the fault is determined. Based on the cause, a corresponding emergency plan is developed. This emergency plan is then simulated and implemented to obtain data on potential emergency defects that may occur during implementation. Based on this data, the safety risk and resource utilization flexibility of the emergency plan are determined. The emergency plan is then adjusted based on the safety risk, and resources within the emergency plan are flexibly allocated based on the resource utilization flexibility. This improves the safety and flexibility of the emergency plan in actual use of the power communication network. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a flowchart of the steps of the power communication network fault handling method based on security analysis provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] The following combination Figure 1 This application is further described in detail, but the embodiments of the present invention are not limited thereto.

[0053] The embodiments of the present application disclose a method for handling power communication network faults based on safety analysis.

[0054] In this embodiment, a method for handling power communication network faults based on security analysis includes the following steps:

[0055] S100: Acquire fault data of the power communication network, analyze the fault data, and obtain the cause of the fault;

[0056] S200: Based on the fault cause, extract the emergency plan corresponding to the fault cause, simulate the implementation of the emergency plan, and obtain application defect data of the emergency plan;

[0057] S300: Perform security analysis on the application defect data to determine the application security risk of the emergency plan. Perform utilization analysis on the application defect data to determine the resource utilization flexibility of the emergency plan.

[0058] S400: Based on security risks, obtain the risk focus of security risks and adjust the emergency plan according to the risk focus;

[0059] S500: Based on the resource utilization flexibility, redundant resources wasted in the emergency plan are obtained, and resource disposal is performed according to the redundant resources.

[0060] It should be pointed out that the above steps are only a preferred implementation order. During the specific implementation process, some steps can be replaced without affecting the overall implementation effect.

[0061] The steps for obtaining fault data of the power communication network, analyzing the fault data, and determining the cause of the fault are as follows:

[0062] Acquire fault data of the electric power communication network, extract fault attributes of the electric power communication network based on the fault data, and perform weighted processing on the fault attributes to obtain weighted fault attributes;

[0063] The fault data is sorted and classified to obtain multiple fault data sets, and association relationships are established between the multiple fault data sets to generate a data set network;

[0064] Perform weighted parallel data mining on the dataset network to obtain the fault scope, fault requirements, and fault phenomena of the power communication network;

[0065] Based on the weighted fault attributes and fault requirements, the fault range is binary detected to determine the fault location, and the fault cause is obtained by combining the fault location and fault phenomenon.

[0066] In this application, taking a regional power communication network as an example, fault data from the regional power communication network is obtained through the power communication network system. Analysis of this data reveals the fault attribute as a network channel fault, which is then weighted to obtain the weighted fault attribute for the network channel fault. The fault data is then organized and classified to generate multiple fault datasets, each containing fault data from different regions and with different weighted fault attributes. Correlations are then established among these fault datasets to form a dataset network. Data mining is then performed within this dataset network, involving multi-level data mining and data association on each fault dataset and its associated fault datasets. The result is that the fault range of the power communication network is a large mountainous area. The fault requirement is to restore communication functionality within the fault range, and the fault symptom is the inability to forward data through the regional power communication network. Based on the fault attributes and fault requirement, a binary detection is performed on the fault range, gradually identifying three fault locations. Based on the fault locations and symptoms, the fault causes are further determined to be two data channel terminals and one infrastructure failure.

[0067] Based on the fault cause, extract the emergency plan corresponding to the fault cause, simulate the implementation of the emergency plan, and obtain the application defect data of the emergency plan. The specific steps are:

[0068] Based on the cause of the fault, search for the emergency plan corresponding to the cause of the fault in the emergency plan library established in advance;

[0069] Acquire construction data of the electric power communication network within the fault range, and generate a simulated fault environment based on the construction data;

[0070] Based on the simulated fault environment, the emergency plan is simulated and implemented in the fault simulation environment to obtain simulation implementation data;

[0071] Establish data defect standards, filter the simulation implementation data based on the data defect standards, and obtain application defect data.

[0072] In practice, for example, a power communication network in a certain region experiences three faults. Based on the fault causes, the system searches for corresponding emergency plans in the emergency plan library. Construction data for the power communication network in that region is obtained, and a simulated fault environment is generated based on this data. Within this simulated fault environment, the emergency plans are simulated and implemented, and simulated implementation data is generated based on the results of the simulated implementation. A data defect standard is established, and the simulated implementation data is compared with the data based on this data defect standard. The comparison results are then filtered to obtain application defect data from the simulated implementation process.

[0073] The steps for conducting security analysis on application defect data and obtaining application security risk of emergency solutions are as follows:

[0074] Based on application defect data, extract route planning information, channel robustness data, data loss information, and data flow information from the application defect data;

[0075] Based on the route planning information and channel robustness data, the route channel risk in the emergency plan is obtained;

[0076] Based on data loss information and data flow information, obtain data security risks in emergency plans;

[0077] Combining route channel risks and data security risks, we can obtain the application security risks of emergency plans.

[0078] In application, using a certain region's power communication network as an example, data extraction was performed on application defect data. The route planning information in this defect data indicated that the route passed through some mountainous and forested areas. The channel robustness data indicated that the channel robustness was high. The data loss information indicated that the loss rate of transmitted data was 60%. The data flow information indicated that data flow was very difficult, and even data congestion occurred. Based on the route planning information and data flow information, the route channel risk in the emergency plan was the risk of line damage in mountainous and forested areas. Based on the data loss information and data flow information, the data security risk in the emergency plan was the risk of data loss and untimely data transmission. Combining these two risks, the application security risk of the emergency plan was determined.

[0079] The steps for analyzing the utilization of application defect data to determine the resource utilization flexibility of the emergency plan are as follows:

[0080] Based on the application defect data, the application defect data is cleaned and then filtered to obtain the fault points of the power communication network and the coverage of the emergency plan for the fault points;

[0081] According to the fault point and coverage area, the available resources of the power communication network in the coverage area are obtained, and the usage information of the available resources is extracted;

[0082] Compare the available resources with the emergency resources provided by the emergency plan to obtain the resource waste of the emergency plan;

[0083] The resource utilization flexibility of the emergency plan is obtained based on the information on resource waste and the amount of available resources used.

[0084] In practice, using a regional power communication network as an example, data cleaning and filtering were performed based on application defect data. The network identified three fault points: two access interruptions and one infrastructure failure. The emergency plan provided 200% coverage for these three fault points. Based on the fault points and coverage, the available resources within the network were calculated to be 50% of the total resources. Utilization information for the available resources, including access and infrastructure information, was also obtained. Comparing the available resources with the emergency plan's emergency resource count revealed a 50% resource waste. This 50% resource waste represents the amount of resources that can be compensated by the network's own resources. Based on this resource waste and the available resource utilization information, the emergency plan's resource utilization flexibility was determined to be 50%.

[0085] Based on the security risks, the risk focus of the security risks is obtained, and the steps for risk adjustment of the emergency plan according to the risk focus are as follows:

[0086] Based on security risks, risk bias identification is performed on security risks to obtain the risk emphasis of security risks;

[0087] According to the risk focus, the risk type of the security risk is obtained, and the focus weight of the risk focus is extracted, and the risk level is obtained according to the focus weight;

[0088] Determine whether the risk level exceeds the preset level threshold. If it is determined that the risk level exceeds the level threshold, predict how the security risk will occur based on the risk type;

[0089] Generate response strategies for security risks based on the occurrence mode, and adjust the emergency plan based on the response strategies.

[0090] In application, taking the power communication network in a certain area as an example, the risk bias of the security risk is identified according to the obtained security risk, and the risk focus of the security risk is obtained as path risk and data risk. According to the risk focus, the risk type of the security risk is further obtained as the data transmission risk type. The risk focus weight is extracted as 70%, and the risk level is 7. The preset level threshold is 5, and the risk level exceeds the level threshold. According to the data transmission risk type, it is predicted that the occurrence mode of the security risk may be man-made damage or damage caused by geological weather, etc., and then according to the response strategy of the sound field security risk of these occurrence modes, such as adjusting the wired transmission mode to wireless transmission mode, using a detour for the data channel, etc., the emergency plan is risk adjusted.

[0091] Based on the flexibility of resource utilization, the redundant resources wasted in the emergency plan are obtained, and the steps for resource disposal are as follows:

[0092] Extract the total amount of resources in the emergency plan and filter the total amount of resources based on resource utilization flexibility to obtain the redundant resources wasted in the emergency plan;

[0093] Based on the redundant resources, a resource allocation position of the redundant resources is identified to obtain a redundant position of the redundant resources;

[0094] Based on the redundant position, searching for a resource location corresponding to the redundant position on the electric power communication network;

[0095] According to the resource location, a reliability value of the communication resource at the resource location is obtained, and whether the reliability value is higher than a preset reliability threshold is determined;

[0096] If it is determined that the reliability value is greater than or equal to the reliability threshold, the redundant resources are recycled; if it is determined that the reliability value is less than the reliability threshold, the redundant resources are replaced with communication resources.

[0097] In application, taking the electric power communication network in a certain area as an example, the total amount of resources extracted from the emergency plan is 100. According to the flexibility of resource utilization, the redundant resources wasted in the emergency plan are 50. The allocation position of the redundant resources is identified according to the redundant resources, and the redundant position of the redundant resources is obtained as some paths or infrastructures that can work normally or are in a safe position. According to the redundant position, the corresponding resource position in the electric power communication network is obtained. According to the resource position, the reliability value of the communication resources on the electric power communication network is obtained, and the reliability value is judged. It is found that the reliability values ​​of two paths are not high, and the reliability value of one infrastructure is very high. The two paths with different reliability values ​​are replaced with redundant resources, and the redundant resources originally used to replace the infrastructure are recycled.

[0098] If it is determined that the reliability value is greater than or equal to the reliability threshold, the redundant resources are recycled; if it is determined that the reliability value is less than the reliability threshold, the redundant resources are replaced with communication resources. After the step, the method further includes:

[0099] Obtaining resource types of redundant resources, and matching them on the power communication network according to the resource types to obtain matching resources on the power communication network;

[0100] Compare the overlap between redundant resources and matching resources to obtain the coverage of redundant resources to matching resources;

[0101] If the coverage is greater than 100%, the reliability values ​​of the redundant resources are compared with those of the matching resources;

[0102] If the reliability value of the redundant resource is determined to be greater than the reliability value of the matching resource, the matching resource is replaced with the redundant resource;

[0103] If it is determined that the reliability value of the redundant resource is less than or equal to the reliability value of the matching resource, the redundant resource is recycled.

[0104] In practice, taking a certain region's power communication network as an example, the resource types of redundant resources are obtained, such as access resources and infrastructure resources. Matching is performed on the power communication network to find matching resources that are identical to the emergency plan. The overlap between the redundant resources and the matching resources is compared to obtain the coverage rate of the redundant resources over the matching resources. When the coverage rate of the redundant resources over the matching resources is found to be 100% or above, the reliability values ​​of the redundant resources and the matching resources are compared. If the reliability value of the matching resource is low, the redundant resource is used to replace it. If the reliability values ​​of the matching resources are both high, the redundant resource is recycled. If data congestion occurs in the matching resource path, resulting in delayed data transmission, the wireless transmission path in the redundant resource can be used to share the data transmission pressure for the congested path, or it can be directly replaced.

[0105] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A power communication network fault handling method based on security analysis, characterized in that: The following steps are involved: Acquire fault data of the power communication network, perform data analysis on the fault data, and obtain the cause of the fault; Based on the fault cause, extracting the emergency plan corresponding to the fault cause, simulating the implementation of the emergency plan, and obtaining application defect data of the emergency plan; Performing a security analysis on the application defect data to obtain the application security risk of the emergency plan, and performing a utilization analysis on the application defect data to obtain the resource utilization flexibility of the emergency plan; Based on the security risk, obtaining a risk emphasis of the security risk, and performing risk adjustment on the emergency plan according to the risk emphasis; Based on the resource utilization flexibility, redundant resources wasted in the emergency plan are obtained, and resource disposal is performed according to the redundant resources.

2. The power communication network fault handling method based on security analysis according to claim 1 is characterized in that: The steps of obtaining fault data of the power communication network, analyzing the fault data, and obtaining the cause of the fault are specifically as follows: Acquiring fault data of the power communication network, extracting fault attributes of the power communication network based on the fault data, and performing weighted processing on the fault attributes to obtain weighted fault attributes; Arranging and classifying the fault data to obtain multiple fault data sets, and establishing associations between the multiple fault data sets to generate a data set network; Performing weighted parallel data mining on the data set network to obtain the fault range, fault requirements, and fault phenomena of the power communication network; Based on the weighted fault attributes and the fault requirements, a binary detection is performed on the fault range to determine the fault location, and the fault cause is obtained in combination with the fault location and the fault phenomenon.

3. The power communication network fault handling method based on security analysis according to claim 2, characterized in that: The steps of extracting a contingency plan corresponding to the fault cause based on the fault cause, simulating and implementing the contingency plan, and obtaining application defect data of the contingency plan are specifically as follows: Based on the cause of the fault, searching for an emergency solution corresponding to the cause of the fault in a pre-established emergency solution library; Acquiring construction data of the electric power communication network in the fault range, and generating a simulated fault environment based on the construction data; Based on the simulated fault environment, the emergency plan is simulated and implemented in the fault simulation environment to obtain simulation implementation data; A data defect standard is established, and the simulation implementation data is screened using the data defect standard as a screening condition to obtain application defect data.

4. The power communication network fault handling method based on security analysis according to claim 3 is characterized in that: The steps of performing security analysis on the application defect data to obtain the application security risks of the emergency plan are specifically as follows: Extracting route planning information, channel robustness data, data loss information, and data flow information from the application defect data based on the application defect data; Obtaining route channel risks in the emergency plan based on the route planning information and the channel robustness data; Obtaining data security risks in the emergency plan based on the data loss information and the data flow information; The application security risk of the emergency plan is obtained by combining the route channel risk and the data security risk.

5. The power communication network fault handling method based on security analysis according to claim 3 is characterized in that: The step of performing utilization analysis on the application defect data to obtain resource utilization flexibility of the emergency plan is specifically as follows: Based on the application defect data, the application defect data is cleaned, and the cleaned application defect data is screened to obtain a fault point of the power communication network and a coverage range of the emergency plan for the fault point; According to the fault point and the coverage area, obtaining the amount of available resources of the power communication network in the coverage area, and extracting usage information of the amount of available resources; Comparing the available resources with the emergency resources provided by the emergency plan to obtain the amount of resource waste of the emergency plan; The resource utilization flexibility of the emergency plan is obtained according to the resource waste amount and the usage information of the available resource quantity.

6. The power communication network fault handling method based on security analysis according to claim 4 is characterized in that: Based on the security risk, the steps of obtaining the risk emphasis of the security risk and adjusting the emergency plan according to the risk emphasis are specifically as follows: Based on the security risk, performing risk bias identification on the security risk to obtain the risk emphasis of the security risk; Obtaining the risk type of the security risk according to the risk emphasis, extracting the emphasis weight of the risk emphasis, and obtaining the risk level according to the emphasis weight; Determining whether the risk level exceeds a preset level threshold, and if it is determined that the risk level exceeds the level threshold, predicting how the security risk will occur based on the risk type; According to the occurrence mode, a response strategy for the security risk is generated, and risk adjustment is performed on the emergency plan according to the response strategy.

7. The power communication network fault handling method based on security analysis according to claim 5, characterized in that: The steps of obtaining redundant resources wasted in the emergency plan based on the resource utilization flexibility and performing resource disposal according to the redundant resources are specifically as follows: Extracting the total amount of resources in the emergency plan, and screening the total amount of resources according to the resource utilization flexibility to obtain redundant resources wasted in the emergency plan; Based on the redundant resources, identifying a resource allocation position of the redundant resources to obtain a redundant position of the redundant resources; Based on the redundant position, searching for a resource location corresponding to the redundant position on the power communication network; Obtaining a reliability value of the communication resource at the resource location according to the resource location, and determining whether the reliability value is higher than a preset reliability threshold; If it is determined that the reliability value is greater than or equal to the reliability threshold, the redundant resources are recycled; if it is determined that the reliability value is less than the reliability threshold, the redundant resources are used to replace the communication resources.

8. The power communication network fault handling method based on security analysis according to claim 7, characterized in that: If it is determined that the reliability value is greater than or equal to the reliability threshold, the redundant resource is recycled; if it is determined that the reliability value is less than the reliability threshold, after the step of replacing the communication resource with the redundant resource, the method further includes: Acquiring a resource type of the redundant resource, and performing matching on the power communication network according to the resource type to obtain matching resources on the power communication network; Comparing the redundant resources with the matching resources for overlap, and obtaining a coverage ratio of the redundant resources to the matching resources; If the coverage is greater than or equal to 100%, comparing the reliability values ​​of the redundant resources and the matching resources; If it is determined that the reliability value of the redundant resource is greater than the reliability value of the matching resource, replacing the matching resource with the redundant resource; If it is determined that the reliability value of the redundant resource is less than or equal to the reliability value of the matching resource, the redundant resource is recycled.

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