Power distribution network security module operation and maintenance method and device, terminal equipment and storage medium

Abstract

The invention discloses a power distribution network safety module operation and maintenance method and device, terminal equipment and a storage medium, and the method comprises the steps: obtaining operation state data, and calculating an operation state evaluation index of a safety module for evaluating whether the safety module is abnormal or not; for the abnormal security module, further obtaining security range data, and calculating an importance evaluation index of the abnormal security module for measuring the importance of the abnormal security module; calculating an operation and maintenance analysis value in combination with the operation state evaluation index and the importance evaluation index for evaluating the operation and maintenance emergency degree of the abnormal security module; and finally, determining a maintenance sequence according to the operation and maintenance analysis values, and preferentially maintaining the abnormal security module with the high operation and maintenance analysis value. The invention provides a technology for monitoring, operating and maintaining the distribution network safety module, the state of the safety module can be monitored in real time, the operation and maintenance suggestion of the safety module is given, and help is provided for stable operation of a distribution network system.

Description

Technical Field

[0001] The present invention relates to the field of distribution network security module operation and maintenance, and in particular to a distribution network security module operation and maintenance method, device, terminal equipment and storage medium. Background Art

[0002] The distribution network security module refers to a security device or software system designed specifically for the distribution network. Its main purpose is to ensure the safe operation of the distribution network, prevent external attacks and internal errors, and improve the reliability and stability of the distribution network. The main functions of the security module include identity authentication, data encryption, access control, intrusion detection, security auditing, event alarms, and remote updates of firmware and software. The normal operation of the distribution network security module has an important impact on the distribution network system, but the existing technology lacks the technology to monitor and operate the distribution network security module, and cannot monitor the status of the security module in real time, and cannot provide security module operation and maintenance suggestions, which is bound to cause security risks to the distribution network system. Summary of the invention

[0003] The present invention provides a distribution network safety module operation and maintenance method, device, terminal equipment and storage medium to solve the technical gap in the prior art for monitoring and operating distribution network safety modules.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a distribution network security module operation and maintenance method, including:

[0005] Obtaining the operating status data of each safety module in the distribution network; wherein the operating status data includes: voltage, current, communication safety status, temperature and transmission signal strength;

[0006] Calculating an operating status evaluation index of each safety module according to the operating status data;

[0007] Determining whether each safety module is abnormal according to the operating status evaluation index;

[0008] Acquire safety range data of each abnormal safety module; wherein the safety range data includes: device rated power, device voltage, device current, device communication safety status and device temperature;

[0009] Calculate the importance evaluation index of each abnormal safety module according to the safety range data;

[0010] Calculating the operation and maintenance analysis value of each abnormal safety module according to the operation status evaluation index and the importance evaluation index;

[0011] The operation and maintenance analysis values ​​of the abnormal safety modules are arranged in descending order to obtain an abnormal safety module operation and maintenance ranking table, and the abnormal safety modules are repaired according to the arrangement order of the abnormal safety module operation and maintenance ranking table.

[0012] As a preferred solution, the step of obtaining the operating status data of each safety module in the distribution network includes:

[0013] The operating status data of each safety module in the distribution network at each moment within a first monitoring time period is obtained.

[0014] As a preferred solution, the step of calculating the operating status evaluation index of each safety module according to the operating status data includes:

[0015] For each of the security modules, calculating an operating status evaluation index of the security module according to the operating status data at each moment within the first monitoring time period;

[0016] The calculation formula of the operating status evaluation index is:

[0017]

[0018] In the formula, A represents the operation status evaluation index; T represents the first monitoring duration; n represents the number of types of operation status data; a i represents the proportion of the i-th operating status data; x i,t represents the specific value of the i-th operating status data at the t-th time; x i,t,m represents the median value of the safety range of the i-th operating state data at the t-th time; x i,max represents the maximum value of the safety range of the i-th operating state data at the t-th time; x i,min Indicates the minimum value of the safety range of the i-th operating status data at the t-th time.

[0019] As a preferred solution, judging whether each safety module is abnormal according to the operation status evaluation index includes:

[0020] For each safety module, the operating status evaluation index of the safety module is compared with a preset operating status evaluation index threshold. If the operating status evaluation index is greater than or equal to the operating status evaluation index, the safety module is judged to be an abnormal safety module; otherwise, the safety module is judged to be a normal safety module.

[0021] As a preferred solution, the step of obtaining the safety range data of each abnormal safety module includes:

[0022] For each abnormal safety module, determine the equipment managed by each abnormal safety module, and obtain the equipment rated power, equipment voltage, equipment current, equipment communication safety status and equipment temperature of each equipment at each moment within the second monitoring time period.

[0023] As a preferred solution, the step of calculating the importance evaluation index of each abnormal safety module according to the safety range data includes:

[0024] Calculating, according to the safety range data of the equipment, the average value of each type of safety range data of each equipment within the second monitoring time period;

[0025] For each abnormal safety module, calculating the importance evaluation index of the abnormal safety module according to the mean value of all safety range data of the equipment managed by the abnormal safety module;

[0026] The calculation formula of the importance evaluation index is:

[0027]

[0028] In the formula, S represents the importance evaluation index; m represents the number of devices managed by the abnormal safety module; Q z represents the device rated power of the zth device managed by the abnormal safety module; q represents the number of devices in the distribution network; P r represents the rated power of the rth device in the distribution network; J z Indicates the number of types of safety range data of the zth device managed by the abnormal safety module; z,j represents the average value of the jth safety range data of the zth device managed by the abnormal safety module; z,j,m represents the median value of the normal range of the jth type of safety range data of the jth device managed by the abnormal safety module; z,j,max represents the maximum value of the normal range of the jth type of safety range data of the jth device managed by the abnormal safety module; z,j,min Indicates the minimum value of the normal range of the j-th type of safety range data of the j-th device managed by the abnormal safety module.

[0029] As a preferred solution, the operation and maintenance analysis value of each abnormal safety module is calculated according to the operation status evaluation index and the importance evaluation index, including:

[0030] For each abnormal safety module, the operation status evaluation index and the importance evaluation index of the abnormal safety module are substituted into the abnormal safety module operation and maintenance analysis value calculation formula to calculate the operation and maintenance analysis value of the abnormal safety module;

[0031] The calculation formula of the abnormal safety module operation and maintenance analysis value is:

[0032] E = cA + (1-c)S;

[0033] In the formula, E represents the operation and maintenance analysis value; A represents the operation status assessment index; S represents the importance assessment index; and c represents the proportion coefficient of the operation status assessment index.

[0034] On the basis of the above-mentioned embodiment, another embodiment of the present invention provides a distribution network safety module operation and maintenance device, comprising: a data acquisition module, an operation status evaluation module, an abnormality judgment module, an importance evaluation module and an operation and maintenance module;

[0035] The data acquisition module is used to acquire the operating status data of each safety module in the distribution network; wherein the operating status data includes: voltage, current, communication safety status, temperature and transmission signal strength;

[0036] The operation status evaluation module is used to calculate the operation status evaluation index of each safety module according to the operation status data;

[0037] The abnormality judgment module is used to judge whether each safety module is abnormal according to the operation status evaluation index;

[0038] The data acquisition module is further used to acquire the safety range data of each abnormal safety module; wherein the safety range data includes: device rated power, device voltage, device current, device communication safety status and device temperature;

[0039] The importance evaluation module is used to calculate the importance evaluation index of each abnormal safety module according to the safety range data;

[0040] The operation and maintenance module is used to calculate the operation and maintenance analysis value of each abnormal safety module according to the operating status evaluation index and the importance evaluation index; to arrange the operation and maintenance analysis values ​​of the abnormal safety modules in descending order to obtain an abnormal safety module operation and maintenance ranking table, and to inspect and repair the abnormal safety modules according to the arrangement order of the abnormal safety module operation and maintenance ranking table.

[0041] Based on the above embodiments, another embodiment of the present invention provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, the distribution network safety module operation and maintenance method described in the above invention embodiment is implemented.

[0042] Based on the above embodiments, another embodiment of the present invention provides a storage medium, which includes a stored computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute the distribution network safety module operation and maintenance method described in the above invention embodiment.

[0043] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0044] The present invention obtains operation status data and calculates the operation status evaluation index of the safety module to evaluate whether the safety module is abnormal; for the abnormal safety module, further obtains safety range data and calculates the importance evaluation index of the abnormal safety module to measure the importance of the abnormal safety module; then combines the operation status evaluation index and the importance evaluation index to calculate the operation and maintenance analysis value to evaluate the operation and maintenance urgency of the abnormal safety module; finally, the maintenance order is determined according to the operation and maintenance analysis value, and the abnormal safety module with a high operation and maintenance analysis value is repaired first. The present invention provides a technology for monitoring and operating the distribution network safety module, which can monitor the status of the safety module in real time, and give safety module operation and maintenance suggestions, so as to help the stable operation of the distribution network system. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a flow chart of a distribution network security module operation and maintenance method provided by an embodiment of the present invention;

[0046] Figure 2 It is a structural schematic diagram of a distribution network safety module operation and maintenance device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Embodiment 1

[0049] Please refer to Figure 1 , is a flow chart of a distribution network security module operation and maintenance method provided by an embodiment of the present invention, including:

[0050] S1. Obtaining the operating status data of each safety module in the distribution network; wherein the operating status data includes: voltage, current, communication security status, temperature and transmission signal strength.

[0051] It should be noted that the information of each safety module of the distribution network is connected to the remote operation and maintenance platform through VPA, and the remote operation and maintenance platform obtains the operating status data of the safety module and the subsequent safety range data.

[0052] In step S1, the operating status data obtained are the voltage, current, communication security status, temperature and transmission signal strength of each safety module in the distribution network.

[0053] The following is the pseudo code for data collection and transmission of the distribution network safety module:

[0054]

[0055]

[0056] In a preferred embodiment, the step of obtaining the operating status data of each safety module in the distribution network includes:

[0057] The operating status data of each safety module in the distribution network at each moment within a first monitoring time period is obtained.

[0058] In this embodiment, during the first monitoring time period, the operating status data of each safety module in the distribution network at each moment is monitored and acquired.

[0059] S2. Calculate an operating status evaluation index of each safety module according to the operating status data.

[0060] It should be noted that the operating status evaluation index is an index used to evaluate the operating status of the security model, and the operating status evaluation index can be calculated based on the operating status data. The lower the operating status evaluation index, the better the operating status of the security module.

[0061] In a preferred embodiment, the calculating the operating status evaluation index of each safety module according to the operating status data includes:

[0062] For each of the security modules, calculating an operating status evaluation index of the security module according to the operating status data at each moment within the first monitoring time period;

[0063] The calculation formula of the operating status evaluation index is:

[0064]

[0065] In the formula, A represents the operation status evaluation index; T represents the first monitoring duration; n represents the number of types of operation status data; a i represents the proportion of the i-th operating status data; x i,t represents the specific value of the i-th operating status data at the t-th time; x i,t,m represents the median value of the safety range of the i-th operating state data at the t-th time; x i,max represents the maximum value of the safety range of the i-th operating state data at the t-th time; x i,min Indicates the minimum value of the safety range of the i-th operating status data at the t-th time.

[0066] In this embodiment, the operating status evaluation index of each safety module in the distribution network is calculated by using the calculation formula of the operating status evaluation index.

[0067] S3. Determine whether each safety module is abnormal according to the operation status evaluation index.

[0068] In step S3, whether the safety module is abnormal is determined based on the safety module's operating status evaluation index. The higher the operating status evaluation index, the more likely it is to be determined as abnormal.

[0069] In a preferred embodiment, judging whether each safety module is abnormal according to the operation status evaluation index includes:

[0070] For each safety module, the operating status evaluation index of the safety module is compared with a preset operating status evaluation index threshold. If the operating status evaluation index is greater than or equal to the operating status evaluation index, the safety module is judged to be an abnormal safety module; otherwise, the safety module is judged to be a normal safety module.

[0071] In this embodiment, the operation status evaluation index of each safety module is compared with a preset operation status evaluation index threshold, and the safety module exceeding the threshold is determined to be an abnormal safety module.

[0072] It should be noted that the operating status evaluation index threshold is a numerical value artificially set based on historical experience and can be used to determine whether a security module is abnormal.

[0073] S4. Obtain safety range data of each abnormal safety module; wherein the safety range data includes: device rated power, device voltage, device current, device communication safety status and device temperature.

[0074] In step S4, after the abnormal safety module is determined, the safety range data of the abnormal safety module is acquired.

[0075] It should be noted that the safety range data includes equipment rated power, equipment voltage, equipment current, equipment communication security status and equipment temperature. These data are not the data of the security module itself, but the data of the distribution network equipment managed by the security module.

[0076] In a preferred embodiment, the step of obtaining the safety range data of each abnormal safety module includes:

[0077] For each abnormal safety module, determine the equipment managed by each abnormal safety module, and obtain the equipment rated power, equipment voltage, equipment current, equipment communication safety status and equipment temperature of each equipment at each moment within the second monitoring time period.

[0078] In this embodiment, it is first determined which devices are managed by each abnormal safety module, and then within the first monitoring period, the device rated power, device voltage, device current, device communication security status and device temperature of each device at each moment are monitored and obtained as the safety range data of the abnormal safety module.

[0079] S5. Calculate the importance evaluation index of each abnormal safety module according to the safety range data.

[0080] It should be noted that the importance evaluation index is an index used to evaluate the importance of the abnormal safety model, and the importance evaluation index can be calculated based on the safety range data. A high importance evaluation index indicates that the importance of the abnormal safety module is higher and its impact on the distribution network is greater.

[0081] In a preferred embodiment, the step of calculating the importance evaluation index of each abnormal safety module according to the safety range data includes:

[0082] Calculating, according to the safety range data of the equipment, the average value of each type of safety range data of each equipment within the second monitoring time period;

[0083] For each abnormal safety module, calculating the importance evaluation index of the abnormal safety module according to the mean value of all safety range data of the equipment managed by the abnormal safety module;

[0084] The calculation formula of the importance evaluation index is:

[0085]

[0086] In the formula, S represents the importance evaluation index; m represents the number of devices managed by the abnormal safety module; Q z represents the device rated power of the zth device managed by the abnormal safety module; q represents the number of devices in the distribution network; P r represents the rated power of the rth device in the distribution network; J z Indicates the number of types of safety range data of the zth device managed by the abnormal safety module; z,j represents the average value of the jth safety range data of the zth device managed by the abnormal safety module; z,j,m represents the median value of the normal range of the jth type of safety range data of the jth device managed by the abnormal safety module; z,j,max represents the maximum value of the normal range of the jth type of safety range data of the jth device managed by the abnormal safety module; z,j,min Indicates the minimum value of the normal range of the j-th type of safety range data of the j-th device managed by the abnormal safety module.

[0087] In this embodiment, the importance evaluation index of each abnormal safety module is calculated by using a calculation formula of the importance evaluation index.

[0088] S6. Calculate the operation and maintenance analysis value of each abnormal safety module according to the operation status evaluation index and the importance evaluation index.

[0089] It should be noted that the operation and maintenance analysis value is an index used to measure the urgency of abnormal safety module operation and maintenance, which can be calculated through the operation status evaluation index and the importance evaluation index. The higher the operation status evaluation index or the higher the importance evaluation index, the higher the operation and maintenance analysis value will be, and the higher the urgency of abnormal safety module operation and maintenance will be.

[0090] In a preferred embodiment, the operation and maintenance analysis value of each abnormal safety module is calculated according to the operation status evaluation index and the importance evaluation index, including:

[0091] For each abnormal safety module, the operation status evaluation index and the importance evaluation index of the abnormal safety module are substituted into the abnormal safety module operation and maintenance analysis value calculation formula to calculate the operation and maintenance analysis value of the abnormal safety module;

[0092] The calculation formula of the abnormal safety module operation and maintenance analysis value is:

[0093] E = cA + (1-c)S;

[0094] In the formula, E represents the operation and maintenance analysis value; A represents the operation status assessment index; S represents the importance assessment index; and c represents the proportion coefficient of the operation status assessment index.

[0095] In this embodiment, the operation and maintenance analysis value of each abnormal safety module is calculated according to the abnormal safety module operation and maintenance analysis value calculation formula.

[0096] S7. Arrange the operation and maintenance analysis values ​​of the abnormal safety modules in descending order to obtain an abnormal safety module operation and maintenance ranking table, and repair the abnormal safety modules according to the arrangement order of the abnormal safety module operation and maintenance ranking table.

[0097] In step S7, the operation and maintenance analysis values ​​of the abnormal safety modules are arranged in descending order, and the abnormal safety modules with high operation and maintenance analysis values ​​are repaired preferentially according to the arrangement order.

[0098] It should be noted that the present invention obtains relevant data and calculates the operation status evaluation index of the safety module to evaluate whether the safety module is abnormal. For the abnormal safety module, further relevant data is obtained to calculate the importance evaluation index of the abnormal safety module to measure the importance of the abnormal safety module. Then, the operation status evaluation index and the importance evaluation index are combined to calculate the operation and maintenance analysis value to evaluate the operation and maintenance urgency of the abnormal safety module. Finally, the maintenance order is determined according to the operation and maintenance analysis value, and the abnormal safety module with a high operation and maintenance analysis value is repaired first. The present invention provides a technology for monitoring and operating the distribution network safety module, which can monitor the status of the safety module in real time, and give safety module operation and maintenance suggestions to help the stable operation of the distribution network system.

[0099] Embodiment 2

[0100] Please refer to Figure 2 , is a structural diagram of a distribution network safety module operation and maintenance device provided by an embodiment of the present invention, comprising: a data acquisition module, an operation status evaluation module, an abnormality judgment module, an importance evaluation module and an operation and maintenance module;

[0101] The data acquisition module is used to acquire the operating status data of each safety module in the distribution network; wherein the operating status data includes: voltage, current, communication safety status, temperature and transmission signal strength;

[0102] The operation status evaluation module is used to calculate the operation status evaluation index of each safety module according to the operation status data;

[0103] The abnormality judgment module is used to judge whether each safety module is abnormal according to the operation status evaluation index;

[0104] The data acquisition module is further used to acquire the safety range data of each abnormal safety module; wherein the safety range data includes: device rated power, device voltage, device current, device communication safety status and device temperature;

[0105] The importance evaluation module is used to calculate the importance evaluation index of each abnormal safety module according to the safety range data;

[0106] The operation and maintenance module is used to calculate the operation and maintenance analysis value of each abnormal safety module according to the operating status evaluation index and the importance evaluation index; to arrange the operation and maintenance analysis values ​​of the abnormal safety modules in descending order to obtain an abnormal safety module operation and maintenance ranking table, and to inspect and repair the abnormal safety modules according to the arrangement order of the abnormal safety module operation and maintenance ranking table.

[0107] Embodiment 3

[0108] Accordingly, an embodiment of the present invention provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, it implements the distribution network safety module operation and maintenance method described in the above-mentioned embodiment of the invention.

[0109] Embodiment 4

[0110] Accordingly, an embodiment of the present invention provides a storage medium, which includes a stored computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute the distribution network security module operation and maintenance method described in the above-mentioned embodiment of the invention.

[0111] It should be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art may understand and implement it without paying any creative effort.

[0112] Those skilled in the art can clearly understand that for the sake of convenience and brevity, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0113] The terminal device may be a computing device such as a desktop computer, a notebook, a PDA, a cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0114] The processor may be a central processing unit (CPU), or other general-purpose processors, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the device, and various interfaces and lines are used to connect various parts of the entire device.

[0115] The memory can be used to store the computer program, and the processor realizes various functions of the device by running or executing the computer program stored in the memory and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function, etc.; the data storage area can store data created according to the use of the mobile phone, etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Med ia Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0116] The storage medium is a storage medium, and the computer program is stored in the storage medium. When the computer program is executed by the processor, the steps of each method embodiment described above can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-On l yMemory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer readable media do not include electric carrier signals and telecommunication signals.

[0117] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A distribution network security module operation and maintenance method, characterized in that: include: Obtaining the operating status data of each safety module in the distribution network; wherein the operating status data includes: voltage, current, communication safety status, temperature and transmission signal strength; Calculating an operating status evaluation index of each safety module according to the operating status data; Determining whether each safety module is abnormal according to the operating status evaluation index; Acquire safety range data of each abnormal safety module; wherein the safety range data includes: device rated power, device voltage, device current, device communication safety status and device temperature; Calculate the importance evaluation index of each abnormal safety module according to the safety range data; Calculating the operation and maintenance analysis value of each abnormal safety module according to the operation status evaluation index and the importance evaluation index; The operation and maintenance analysis values ​​of the abnormal safety modules are arranged in descending order to obtain an abnormal safety module operation and maintenance ranking table, and the abnormal safety modules are repaired according to the arrangement order of the abnormal safety module operation and maintenance ranking table.

2. The distribution network safety module operation and maintenance method according to claim 1, characterized in that: The obtaining of the operating status data of each safety module in the distribution network includes: The operating status data of each safety module in the distribution network at each moment within a first monitoring time period is obtained.

3. The distribution network safety module operation and maintenance method according to claim 2, characterized in that: The step of calculating the operating status evaluation index of each safety module according to the operating status data includes: For each of the security modules, calculating an operating status evaluation index of the security module according to the operating status data at each moment within the first monitoring time period; The calculation formula of the operating status evaluation index is: In the formula, A represents the operation status evaluation index; T represents the first monitoring duration; n represents the number of types of operation status data; a i represents the proportion of the i-th operating status data; x i,t represents the specific value of the i-th operating status data at the t-th time; x i,t,m represents the median value of the safety range of the i-th operating state data at the t-th time; x i,max represents the maximum value of the safety range of the i-th operating state data at the t-th time; x i,min Indicates the minimum value of the safety range of the i-th operating status data at the t-th time.

4. The distribution network safety module operation and maintenance method according to claim 1, characterized in that: The step of judging whether each safety module is abnormal according to the operation status evaluation index includes: For each safety module, the operating status evaluation index of the safety module is compared with a preset operating status evaluation index threshold. If the operating status evaluation index is greater than or equal to the operating status evaluation index, the safety module is judged to be an abnormal safety module; otherwise, the safety module is judged to be a normal safety module.

5. The distribution network safety module operation and maintenance method according to claim 1, characterized in that: The step of obtaining the safety range data of each abnormal safety module includes: For each abnormal safety module, determine the equipment managed by each abnormal safety module, and obtain the equipment rated power, equipment voltage, equipment current, equipment communication safety status and equipment temperature of each equipment at each moment within the second monitoring time period.

6. The distribution network safety module operation and maintenance method according to claim 5, characterized in that: Calculating the importance evaluation index of each abnormal safety module according to the safety range data includes: Calculating, according to the safety range data of the equipment, the average value of each type of safety range data of each equipment within the second monitoring time period; For each abnormal safety module, calculating the importance evaluation index of the abnormal safety module according to the mean value of all safety range data of the equipment managed by the abnormal safety module; The calculation formula of the importance evaluation index is: In the formula, S represents the importance evaluation index; m represents the number of devices managed by the abnormal safety module; Q z represents the device rated power of the zth device managed by the abnormal safety module; q represents the number of devices in the distribution network; P r represents the rated power of the rth device in the distribution network; J z Indicates the number of types of safety range data of the zth device managed by the abnormal safety module; z,j represents the average value of the jth safety range data of the zth device managed by the abnormal safety module; z,j,m represents the median value of the normal range of the jth type of safety range data of the jth device managed by the abnormal safety module; z,j,max represents the maximum value of the normal range of the jth type of safety range data of the jth device managed by the abnormal safety module; z,j,min Indicates the minimum value of the normal range of the j-th type of safety range data of the j-th device managed by the abnormal safety module.

7. The distribution network safety module operation and maintenance method according to claim 1, characterized in that: The calculating the operation and maintenance analysis value of each abnormal safety module according to the operation status evaluation index and the importance evaluation index includes: For each abnormal safety module, the operation status evaluation index and the importance evaluation index of the abnormal safety module are substituted into the abnormal safety module operation and maintenance analysis value calculation formula to calculate the operation and maintenance analysis value of the abnormal safety module; The calculation formula of the abnormal safety module operation and maintenance analysis value is: E = cA + (1-c)S; In the formula, E represents the operation and maintenance analysis value; A represents the operation status assessment index; S represents the importance assessment index; and c represents the proportion coefficient of the operation status assessment index.

8. A distribution network safety module operation and maintenance device, characterized in that: include: Data acquisition module, operation status assessment module, abnormality judgment module, importance assessment module and operation and maintenance module; The data acquisition module is used to acquire the operating status data of each safety module in the distribution network; wherein the operating status data includes: voltage, current, communication safety status, temperature and transmission signal strength; The operation status evaluation module is used to calculate the operation status evaluation index of each safety module according to the operation status data; The abnormality judgment module is used to judge whether each safety module is abnormal according to the operation status evaluation index; The data acquisition module is further used to acquire the safety range data of each abnormal safety module; wherein the safety range data includes: device rated power, device voltage, device current, device communication safety status and device temperature; The importance evaluation module is used to calculate the importance evaluation index of each abnormal safety module according to the safety range data; The operation and maintenance module is used to calculate the operation and maintenance analysis value of each abnormal safety module according to the operating status evaluation index and the importance evaluation index; to arrange the operation and maintenance analysis values ​​of the abnormal safety modules in descending order to obtain an abnormal safety module operation and maintenance ranking table, and to inspect and repair the abnormal safety modules according to the arrangement order of the abnormal safety module operation and maintenance ranking table.

9. A terminal device, characterized in that: It comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, it implements the distribution network safety module operation and maintenance method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium includes a stored computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute the distribution network safety module operation and maintenance method according to any one of claims 1 to 7.

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