Master station inspection method and system based on weather conditions and device abnormal probability

Abstract

The invention relates to a main station patrol method and system based on weather conditions and device anomaly probabilities, and the method comprises the steps: a protection and information master station obtains the weather conditions of the next day from a weather system, and calculates the patrol anomaly probability of a transformer substation end device in a set time and the probability that the device is abnormal under different weather conditions; generating a next-day patrol scheme in combination with the next-day weather condition, and sending the next-day patrol scheme to a corresponding information protection substation at the transformer substation end; the information protection substation performs inspection according to the inspection scheme of the next day, forms an inspection report and pushes the inspection report to the operation and maintenance master station; and the information protection master station analyzes the inspection report, sends an inspection abnormity alarm prompt, pushes the inspection report to the operation and maintenance systems of other areas in real time, and automatically updates device annual inspection plans of the operation and maintenance systems of other areas. According to the invention, the work redundancy caused by frequent inspection of normal devices is reduced, the workload of operation and maintenance personnel is reduced, and the purpose of accurate inspection is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of power system data monitoring, and relates to a master station inspection method and system based on weather conditions and device abnormality probability. Background Art

[0002] The Baoxin system includes the Baoxin master station, Baoxin substation, and related equipment such as protection devices at the substation end. The Baoxin master station communicates with the Baoxin substation through protocols such as IEC103 or IEC61850, and the Baoxin substation communicates with related equipment such as protection devices at the substation end through methods such as IEC103, IEC61850, and serial ports; the Baoxin substation collects information from equipment such as protection devices at the substation end and sends it to the Baoxin master station through protocols.

[0003] At present, with the continuous development of the power system, the scale of the power grid is getting larger and larger. In order to ensure the reliability of the system, it is necessary to conduct periodic inspections of power equipment to discover hidden faults. The traditional inspection plan uses a flooding method to inspect all devices in the station one by one, but this method accounts for a large proportion of network bandwidth, which seriously affects the transmission of key alarm information of station-side equipment. In addition, normal devices are frequently inspected, and a lot of repetitive work is performed, which seriously affects work efficiency. In addition, the equipment on site sometimes becomes abnormal due to the influence of weather conditions. The traditional inspection method does not take into account the inspection abnormality interference caused by weather conditions, making it difficult to achieve accurate inspections. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a master station patrol method and system based on weather conditions and device abnormality probability.

[0005] The present invention adopts the following technical solution.

[0006] The first aspect of the present invention provides a master station inspection method based on weather conditions and device abnormality probability, comprising:

[0007] The Baoxin master station obtains the weather conditions of the next day from the weather system, calculates the probability of abnormal inspection of the substation device within the set time and the probability of abnormal equipment under different weather conditions, generates the next day's inspection plan based on the weather conditions of the next day and sends it to the corresponding Baoxin substation at the substation end;

[0008] The Baoxin substation conducts inspections according to the next day's inspection plan and generates inspection reports that are pushed to the operation and maintenance main station;

[0009] The Baoxin main station analyzes the inspection report and sends out inspection abnormality alarm prompts. At the same time, it pushes the inspection report to the operation and maintenance systems of other areas in real time, and automatically updates the annual inspection plan of the equipment in the operation and maintenance systems of other areas.

[0010] Preferably, the weather conditions include the presence or absence of rainfall, strong wind, heavy fog, thunder and lightning, and the corresponding start time and end time.

[0011] Preferably, the generation method of the next day inspection plan includes:

[0012] (1) If the substation is inspected for the first time, the Baoxin master station generates the next day's inspection plan for all devices, including the device's set value, analog quantity, state quantity, differential current, panel light, communication status between telecontrol and the device, and communication status between monitoring and the device. The corresponding standard values ​​are set by the substation end;

[0013] (2) If this is not the first inspection of the substation, the Baoxin master station calculates the inspection abnormality probability v of each device based on the most recent inspection report; and calculates the probability of abnormality of the device under different weather conditions r i ;

[0014] According to the abnormal probability v of device inspection and the probability r of abnormal device occurrence under different weather conditions i i and the probability p of the i-th weather condition occurring the next day i Automatically generate the substation next day inspection plan, as follows:

[0015] Screen the devices whose inspection abnormality probability v is greater than the set threshold 1 to obtain the first inspection device set; calculate the r of each device i Corresponding to p i The product and sum of the values, the devices whose result is greater than the set threshold 2 constitute the second patrol device set; and a next-day patrol plan is generated for the devices in the first patrol device set and the second patrol device set.

[0016] Preferably, the Baoxin master station uses IEC103 or IEC61850 communication protocol to send the patrol plan to the Baoxin substation.

[0017] Preferably, the security substation extends two virtual points: an alarm point with a fixed name of "patrol completed" and a control point with a name of "start patrol";

[0018] When the Baoxin master station sends the next day's patrol plan to the Baoxin substation, it sends a "start patrol" control point signal verification command. The Baoxin master station and the Baoxin substation each generate a set of public keys and private keys based on the digital certificate and exchange public keys with each other. When the Baoxin master station sends the command, the message header adds a 64-bit ID generated by the master station's private key. When the substation receives the command, it parses and verifies whether the command is correct based on the public key sent by the master station. After the verification is correct, the substation adds a 64-bit ID generated by its private key to the reply header. The master station uses the public key distributed by the substation to verify the reply information. If it is correct, the patrol is officially started. The master station sends the patrol start command to the substation, and the substation starts the patrol according to the patrol plan.

[0019] The Baoxin substation automatically calls out the patrol contents one by one according to the patrol plan received, and compares them with the normal values ​​stored locally. If there is any inconsistency, it is saved in the patrol report;

[0020] After the Baoxin substation has completed the inspection of all inspection contents, it automatically sends an "inspection completed" alarm point signal verification command to the Baoxin main station. The message header sent by the substation adds a 64-bit ID generated by the substation's private key. When the main station receives the command, it parses it according to the public key issued by the substation to verify whether the command is correct. After the verification is correct, the main station adds a 64-bit ID generated by its private key to the reply header. The substation uses the public key distributed by the substation to verify the information. After the verification is correct, the substation sends a "inspection completed" signal to the Baoxin main station. The Baoxin main station sends a command to call the inspection report file to the Baoxin substation. The Baoxin substation pushes the inspection report file to the Baoxin main station through the communication protocol.

[0021] Preferably, after receiving the patrol report, the security main station starts the report analysis program, analyzes the patrol abnormal device and patrol abnormal content, and displays the patrol abnormal device and the corresponding patrol abnormal content in an eye-catching manner in the alarm window.

[0022] Preferably, when an abnormal device appears in the inspection report of the other zone operation and maintenance system, a comprehensive analysis is made on the abnormal probability of the device in different time periods in the past year, and the devices in different annual inspection time periods are automatically screened out according to the time of the annual inspection next year.

[0023] The second aspect of the present invention provides a master station patrol system based on weather conditions and device abnormality probability, the system comprising a trustworthy master station and a trustworthy substation deployed in a first zone and an operation and maintenance system deployed in a third zone;

[0024] The security master station is used to obtain the weather conditions of the next day from the weather system, and calculate the probability of abnormal inspection of the substation-end device within the set time and the probability of abnormal device under different weather conditions, and generate the next day's inspection plan in combination with the weather conditions of the next day and send it to the corresponding security substation at the substation end; the operation and maintenance master station analyzes the inspection report and sends an inspection abnormality alarm prompt, and at the same time pushes the inspection report to the operation and maintenance systems of other areas in real time, and automatically updates the annual inspection plan of the devices of the operation and maintenance systems of other areas;

[0025] The security substation is used to conduct inspections according to the next day's inspection plan and generate inspection reports that are pushed to the operation and maintenance main station.

[0026] Preferably, the Baoxin main station is connected to the weather system through a firewall, and the Baoxin main station and the weather system interact through E files. The weather system automatically generates an E file of the next day's weather conditions and actively pushes it to the Baoxin main station through the sftp service.

[0027] A third aspect of the present invention provides a terminal, comprising a processor and a storage medium; the storage medium is used to store instructions; the processor is used to operate according to the instructions to execute the steps of the method.

[0028] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the method when executed by a processor.

[0029] Compared with the prior art, the beneficial effects of the present invention include at least:

[0030] The present invention generates a patrol plan by using the Baoxin master station at the dispatching end. The patrol plan for each substation will be different, thus realizing the refined management of one station and one plan.

[0031] The present invention takes into account the problem of abnormal patrol interference caused by weather conditions when generating patrol plans, comprehensively considers the probability of abnormal patrol of substation-end devices, the probability of abnormal patrol of devices under different weather conditions and the weather conditions of the next day, and dynamically generates the patrol plan for the next day, which can realize accurate patrol. Subsequently, according to the accumulation of data, the accuracy rate can be continuously improved, the probability can be continuously corrected, a more accurate patrol plan can be obtained, and unnecessary patrol of devices can be reduced.

[0032] The present invention can automatically adjust the inspection plan according to weather conditions and the abnormal rate of device inspection and push the inspection report to the operation and maintenance system of the three zones in real time, assist the operation and maintenance personnel to automatically adjust the inspection plan, reduce the work redundancy caused by frequent inspections of normal devices, reduce the workload of the operation and maintenance personnel, and achieve the purpose of accurate inspection.

[0033] The present invention dynamically amends the annual inspection plan of the device in the next year according to the statistical situation of the abnormal probability of the device in the current year, thereby reducing repeated work.

[0034] The present invention improves the safety and reliability of patrols by securely transmitting and implementing patrol plans based on alarm points of "patrol completed" and control points of "patrol started". BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a flowchart of the method of the present invention;

[0036] Figure 2 Flow chart for implementing the method of the present invention;

[0037] Figure 3 Schematic diagram of the system architecture of the present invention. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0039] Embodiment 1 of the present invention provides a master station inspection method based on weather conditions and device abnormality probability, which is used for the master station in the trust insurance system / trust insurance operation and maintenance system, and dynamically adjusts the master station inspection plan based on the weather conditions and device abnormality probability, such as Figure 1-Figure 2 As shown, the method includes:

[0040] Step 1: The Baoxin master station obtains the weather conditions of the next day from the weather system, and calculates the probability of abnormal inspection of the substation device within the set time and the probability of abnormal device under different weather conditions; the Baoxin master station generates the next day's inspection plan based on the probability of abnormal inspection of the substation device, the probability of abnormal device under different weather conditions and the weather conditions of the next day, and sends it to the corresponding Baoxin substation at the substation end;

[0041] Further preferably, the Baoxin operation and maintenance system is interactive with the weather system. The weather system automatically generates the weather conditions for the second day and saves it in an E file, and transmits the file to the Baoxin operation and maintenance system. The Baoxin operation and maintenance system automatically parses the file to obtain the weather conditions for the second day, and calculates the device inspection abnormality rate in the recent period based on the last inspection of the substation-end device. The time can be modified according to actual conditions.

[0042] The Baoxin main station has deployed a program to monitor weather system files in real time. When a file is detected, it will be parsed in real time and the file content will be pushed to the operation and maintenance main station.

[0043] The operation and maintenance main station is connected to the weather system through a firewall. The operation and maintenance main station and the weather system interact through E files. E files refer to a standard file format. The weather system automatically generates an E file of the weather conditions for the next day and actively pushes it to the operation and maintenance main station server through the sftp service. The weather conditions include: whether there is rainfall, strong wind, heavy fog, lightning, etc., and the corresponding start time and end time are given.

[0044] The content of the E file mainly includes weather conditions: whether there is rainfall, strong wind, heavy fog, lightning, snow, hail, etc. The format is as follows:

[0045] Table 1

[0046] Weather Type level Start time End Time Rainfall xxx xxx xxx Wind(Level) xxx xxx xxx Fog (level) xxx xxx xxx Thunder and Lightning xxx xxx xxx Snowfall xxx xxx xxx hail xxx xxx xxx other xxx xxx xxx xxx xxx xxx xxx

[0047] Further preferably, the Baoxin master station automatically generates a second-day patrol plan based on the weather conditions and the device patrol abnormality rate, as follows:

[0048] (1) When the substation is inspected for the first time, all devices are inspected. The inspection plan generated by the master station includes the fixed values, analog quantities, status quantities, differential currents, panel lights, communication status between telecontrol and devices, and communication status between monitoring and devices of all devices. The standard values ​​of all points are set by the station.

[0049] (2) If it is not the first inspection, the master station calculates the inspection abnormality probability (v) of each device based on the most recent inspection report. The calculation method of the abnormality probability is as follows: first calculate the ratio of the number of devices with abnormal inspection content (m) to the number of inspections (k) within a period of time, and obtain v = m / k; and then count the number of abnormalities of the device under severe weather conditions such as rain, strong wind, heavy fog, and lightning. i The ratio r to the number of device abnormalities b i =d i / b.

[0050] Combine these two ratios to dynamically adjust the substation inspection plan. The first step is to find the devices with a higher probability of abnormal inspections, and automatically generate the substation inspection plan based on the probability of abnormalities in rain, strong winds, heavy fog, lightning, etc. during this period, and the weather conditions of the next day. The statistical time of the inspection can be dynamically adjusted according to the actual situation on site to form the optimal inspection plan. The details are as follows:

[0051] Screen the devices whose inspection abnormality probability v is greater than the set threshold 1 to obtain a first inspection device set;

[0052] Calculate r for each device i With p i The product sum of , the devices whose result is greater than the set threshold 2 constitute the second patrol device set;

[0053] A next-day patrol plan is generated for the devices in the first patrol device set and the second patrol device set.

[0054] Further preferably, the Kronecker product matrix calculation formula can be used to calculate the probability abnormality rate of a single device in different weather conditions and the weather conditions. The abnormality rate of each device in different weather conditions can be clearly analyzed to provide a data basis for the generation of the patrol plan.

[0055] First, according to the probability of weather conditions, the probability of abnormal devices, and the probability of abnormalities under abnormal weather, the respective probability matrices are generated respectively. Then, the final abnormal probability c of the device is calculated according to the Kronecker product. The automatic generation of subsequent plans is based on this probability, and it is continuously re-counted and corrected in the future to improve the probability of correctly arranging inspections when specific weather occurs.

[0056] It is also possible to filter out the devices with the highest probability of abnormality (r) according to the weather conditions of the next day, and automatically generate the substation inspection plan for the next day. For example, automatically traverse all the devices in the substation and analyze the weather conditions of tomorrow. If the weather condition with the highest probability is lightning, analyze the devices that are abnormal under lightning conditions, and automatically associate the content that needs to be inspected under lightning conditions, such as adding inspection content such as tripping signals, and automatically generate the inspection plan for the device. If the device has never been abnormal under lightning conditions, the inspection under lightning conditions can be reduced. In this way, the inspection plan can be optimized and unnecessary inspection work can be reduced.

[0057] The operation and maintenance master station sends different inspection plans to the corresponding security substation at the substation end through protocols:

[0058] The operation and maintenance main station sends the inspection plan of the corresponding station to the corresponding substation through the Baoxin substation at the substation end according to the generated inspection plan every day.

[0059] The communication method between the master station and the Baoxin substation adopts the IEC103 and IEC61850 communication protocols. The patrol plan formed by the master station is sent to the Baoxin substation through the above protocols.

[0060] Because the Baoxin main station is at the dispatching end and has a wide area under its jurisdiction, the inspection plan for each substation will be different, realizing refined management of one station and one plan.

[0061] Step 2: The Baoxin substation conducts inspections according to the next day's inspection plan and generates an inspection report that is pushed to the operation and maintenance main station;

[0062] Step 2.1: The Baoxin substation automatically starts the patrol function according to the patrol plan, compares the actual value of the device with the standard value, and saves the abnormal items in the patrol report:

[0063] The Baoxin substation needs to expand two virtual points: an alarm point with a fixed name of "Patrol Completed" and a control point of "Start Patrol". The main station first sends the patrol plan to the Baoxin substation through the protocol, and then sends the "Start Patrol" control point to notify the substation that it needs to start patrol according to the patrol plan. The Baoxin substation automatically calls the patrol content one by one according to the received patrol plan, and compares it with the normal value stored locally. If there is any inconsistency, it will be saved in the patrol report.

[0064] Further preferably, the Baoxin main station sends a control point signal verification command of "start patrol" to the Baoxin substation when sending the next day's patrol plan. Considering the security relationship, the main station and the substation adopt a key authentication method based on digital certificates to verify the command. Through the commercial secret system, the Baoxin main station and the Baoxin substation each generate a set of public keys and private keys according to the digital certificate and exchange public keys with each other. When the Baoxin main station sends the patrol command, the message header adds a 64-bit ID generated by the private key of the main station. When the substation receives the command, it needs to parse and verify whether the command is correct according to the public key sent by the main station. After the verification is correct, the substation adds a 64-bit ID generated by its private key to the reply header. The main station uses the public key distributed by the substation to verify the reply information. If it is correct, the patrol is officially started. The main station sends a patrol start command to the substation, and the substation needs to start the patrol according to the patrol plan.

[0065] The Baoxin substation automatically calls out the patrol contents one by one according to the patrol plan received, and compares them with the normal values ​​stored locally. If there is any inconsistency, it is saved in the patrol report;

[0066] After the Baoxin substation completes the inspection of all inspection contents, it automatically sends an "inspection completed" alarm point signal verification command to the Baoxin main station. The message header sent by the substation adds a 64-bit ID generated by the substation's private key. When the main station receives the command, it needs to parse it according to the public key issued by the substation to verify whether the command is correct. After the verification is correct, the main station adds a 64-bit ID generated by its private key to the reply header. The substation uses the public key distributed by the substation to verify the information. After the verification is correct, the substation sends a "inspection completed" signal to the Baoxin main station. The Baoxin main station begins to issue a command to call the inspection report file to the Baoxin substation. The Baoxin substation pushes the inspection report file to the Baoxin main station through the IEC103 or IEC61850 communication protocol.

[0067] The standard values ​​mainly specify values, analog quantities, status quantities, differential currents, panel lights, communication status between telecontrol and devices, communication status between monitoring and devices, and other content parameter values. Generally, the values ​​are fixed, or are fixed under a certain operating mode of the power grid. Therefore, their standard values ​​are generally one or several given values. When the actual value is the same as a standard value, the parameter value is considered normal.

[0068] Since the parameters of secondary equipment are generally only related to the operation mode of the power grid, and the operation mode is generally closely related to the fixed value area, the real-time electrical quantity (analog quantity, state quantity) changes during actual operation, and its standard value is a range of values. When the actual value is within this range, it means that the electrical quantity is normal.

[0069] Step 2.2: Send the inspection report content to the operation and maintenance main station in the form of a file:

[0070] When the Baoxin substation has completed the inspection of all inspection contents, it will automatically send an "inspection completed" alarm signal to the main station. After receiving the signal, the main station automatically sends a command to call the inspection report file to the substation, and the substation sends the file to the main station through the protocol.

[0071] Step 3: The Baoxin master station analyzes the inspection report and sends an inspection abnormality alarm prompt. At the same time, it pushes the inspection report to the operation and maintenance systems of other areas in real time, and automatically updates the annual inspection plan of the equipment in the operation and maintenance systems of other areas.

[0072] Step 3.1: The master station parses the report file and sends an alarm prompt:

[0073] After receiving the patrol report, the master station starts the report analysis program, analyzes the patrol abnormal device and patrol abnormal content, and displays the abnormal device and the corresponding patrol abnormal content in a striking manner in the alarm window.

[0074] Step 3.2: At the same time, the inspection report is pushed to the operation and maintenance system of the three zones in real time:

[0075] The master station systems are deployed in areas one and three of the power system. Area one is mainly involved in the functions of system control operations, and area three mainly displays the results of corresponding operations in area one in the form of web pages. When an abnormal device is found during inspection in area one, the inspection results will be sent to the master station system in area three in the form of files through isolation devices such as firewalls one and three, and the results will be displayed and output.

[0076] Step 3.3: And automatically update the annual inspection plan of the three-zone system:

[0077] The third area is equipped with an annual inspection plan function, which records the maintenance plan for the next year. When an abnormal device appears in the inspection report, the abnormal probability of the device in the past year is calculated, and the abnormal probability is automatically analyzed to determine whether to add it to the annual inspection plan for the next year. Specifically, the abnormal probability of the device in different time periods in the past year is comprehensively analyzed, and the devices in different annual inspection time periods are automatically selected according to the time of the annual inspection next year. The annual inspection plan is optimized to reduce unnecessary work.

[0078] Embodiment 2 of the present invention provides a master station patrol system based on weather conditions and device abnormality probability, the system comprising a trustworthy master station and a trustworthy substation deployed in a first zone and an operation and maintenance system deployed in a third zone;

[0079] The security master station is used to obtain the weather conditions of the next day from the weather system, and calculate the probability of abnormal inspection of the substation-end device within the set time and the probability of abnormal device under different weather conditions, and generate the next day's inspection plan in combination with the weather conditions of the next day and send it to the corresponding security substation at the substation end; the operation and maintenance master station analyzes the inspection report and sends an inspection abnormality alarm prompt, and at the same time pushes the inspection report to the operation and maintenance systems of other areas in real time, and automatically updates the annual inspection plan of the devices of the operation and maintenance systems of other areas;

[0080] The security substation is used to conduct inspections according to the next day's inspection plan and generate inspection reports that are pushed to the operation and maintenance main station.

[0081] Further preferably, the Baoxin main station is connected to the weather system through a firewall, and the Baoxin main station and the weather system interact through E files. The weather system automatically generates an E file of the next day's weather conditions and actively pushes it to the Baoxin main station through the sftp service.

[0082] like Figure 3 As shown, the system also includes a protection device, an operation and maintenance gateway, a remote control device, and a measurement and control device; wherein the number of the protection device, the measurement and control, the remote control device, and the operation and maintenance gateway can be one or more, and the present disclosure does not limit this.

[0083] Protection devices and measurement and control devices (also known as secondary equipment) may refer to equipment that monitors, measures, controls, protects and regulates primary equipment in a power system. Primary equipment may refer to equipment directly used to produce and use electrical energy in a power system. Protection devices and measurement and control devices may collect information about primary equipment, including action information, alarm information, and self-test information, etc., which is not limited in this disclosure.

[0084] The Baoxin substation can refer to a device located at the plant station end, which can communicate with intelligent electronic devices such as protection devices, measurement and control, and remote control devices, collect normal operating status information, abnormal alarm information, model point-to-point record files and other relevant data of these devices, and send it to the Baoxin main station after preliminary processing.

[0085] Telecontrol devices can refer to devices located at the plant end that can communicate with intelligent electronic devices such as protection devices, measurement and control and safety automatic devices, collect normal operating status information, abnormal alarm information and other related data of these devices, and send them to the IEC104 master station after preliminary processing.

[0086] Embodiment 3 of the present invention provides a terminal, including a processor and a storage medium; the storage medium is used to store instructions; the processor is used to operate according to the instructions to execute the steps of the method.

[0087] Embodiment 4 of the present invention provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the method when executed by a processor.

[0088] Compared with the prior art, the beneficial effects of the present invention include at least:

[0089] The present invention generates a patrol plan by using the Baoxin master station at the dispatching end. The patrol plan for each substation will be different, thus realizing the refined management of one station and one plan.

[0090] The present invention takes into account the problem of abnormal patrol interference caused by weather conditions when generating patrol plans, comprehensively considers the probability of abnormal patrol of substation-end devices, the probability of abnormal patrol of devices under different weather conditions and the weather conditions of the next day, and dynamically generates the patrol plan for the next day, which can realize accurate patrol. Subsequently, according to the accumulation of data, the accuracy rate can be continuously improved, the probability can be continuously corrected, a more accurate patrol plan can be obtained, and unnecessary patrol of devices can be reduced.

[0091] The present invention can automatically adjust the inspection plan according to weather conditions and the abnormal rate of device inspection and push the inspection report to the operation and maintenance system of the three zones in real time, assist the operation and maintenance personnel to automatically adjust the inspection plan, reduce the work redundancy caused by frequent inspections of normal devices, reduce the workload of the operation and maintenance personnel, and achieve the purpose of accurate inspection.

[0092] The present invention dynamically amends the annual inspection plan of the device in the next year according to the statistical situation of the abnormal probability of the device in the current year, thereby reducing repeated work.

[0093] The present invention improves the safety and reliability of patrols by securely transmitting and implementing patrol plans based on alarm points of "patrol completed" and control points of "patrol started".

[0094] The present disclosure may be a system, a method and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present disclosure.

[0095] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0096] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0097] The computer program instructions for performing the operation of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages, such as Smalltalk, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. Computer-readable program instructions may be executed completely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be customized by utilizing the state information of the computer-readable program instructions, and the electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present disclosure.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A master station inspection method based on weather conditions and device abnormality probability, characterized in that: include: The Baoxin master station obtains the weather conditions of the next day from the weather system, calculates the probability of abnormal inspection of the substation device within the set time and the probability of abnormal equipment under different weather conditions, generates the next day's inspection plan based on the weather conditions of the next day and sends it to the corresponding Baoxin substation at the substation end; The Baoxin substation conducts inspections according to the next day's inspection plan and generates inspection reports that are pushed to the operation and maintenance main station; The Baoxin main station analyzes the inspection report and sends out inspection abnormality alarm prompts. At the same time, it pushes the inspection report to the operation and maintenance systems of other areas in real time, and automatically updates the annual inspection plan of the equipment in the operation and maintenance systems of other areas.

2. A master station inspection method based on weather conditions and device abnormality probability according to claim 1, characterized in that: The weather conditions include the presence or absence of rain, strong winds, heavy fog, thunder and lightning, and the corresponding start and end times.

3. A master station inspection method based on weather conditions and device abnormality probability according to claim 1, characterized in that: The generation method of the next day patrol plan includes: If it is the first inspection of the substation, the Baoxin master station will generate the next day's inspection plan for all devices, including the device's set value, analog quantity, state quantity, differential current, panel light, communication status between telecontrol and device, and communication status between monitoring and device. The corresponding standard values ​​are set by the substation end; If it is not the first inspection of the substation, the Baoxin master station calculates the inspection abnormality probability v of each device based on the most recent inspection report; and calculates the probability of abnormality r of the device under different weather conditions. i ; According to the abnormal probability v of device inspection and the probability r of abnormal device occurrence under different weather conditions i i and the probability p of the i-th weather condition occurring the next day i Automatically generate the substation next day inspection plan, as follows: Screen the devices whose inspection abnormality probability v is greater than the set threshold 1 to obtain the first inspection device set; calculate the r of each device i Corresponding to p i The product and sum of the values, the devices whose result is greater than the set threshold 2 constitute the second patrol device set; and a next-day patrol plan is generated for the devices in the first patrol device set and the second patrol device set.

4. A master station inspection method based on weather conditions and device abnormality probability according to claim 1, characterized in that: The Baoxin master station uses IEC103 or IEC61850 communication protocol to send the patrol plan to the Baoxin substation.

5. A master station inspection method based on weather conditions and device abnormality probability according to claim 1, characterized in that: The Baoxin substation extends two virtual points: an alarm point with a fixed name of "patrol completed" and a control point of "start patrol"; When the Baoxin master station sends the next day's patrol plan to the Baoxin substation, it sends a control point signal verification command of "start patrol". The Baoxin master station and the Baoxin substation each generate a set of public keys and private keys based on the digital certificate and exchange public keys with each other. When the Baoxin master station sends the command, the message header adds a 64-bit ID generated by the master station's private key. When the substation receives the command, it parses and verifies whether the command is correct based on the public key sent by the master station. After the verification is correct, the substation adds a 64-bit ID generated by its private key to the reply header. The master station uses the public key distributed by the substation to verify the reply information. If it is correct, the patrol is officially started. The master station sends the patrol start command to the substation, and the substation starts the patrol according to the patrol plan. The Baoxin substation automatically calls out the patrol contents one by one according to the patrol plan received, and compares them with the normal values ​​stored locally. If there is any inconsistency, it is saved in the patrol report; After the Baoxin substation has completed the inspection of all inspection contents, it automatically sends an "inspection completed" alarm point signal verification command to the Baoxin main station. The message header sent by the substation adds a 64-bit ID generated by the substation's private key. When the main station receives the command, it parses it according to the public key issued by the substation to verify whether the command is correct. After the verification is correct, the main station adds a 64-bit ID generated by its private key to the reply header. The substation uses the public key distributed by the substation to verify the information. After the verification is correct, the substation sends an "inspection completed" signal to the Baoxin main station. The Baoxin main station sends a command to call the inspection report file to the Baoxin substation. The Baoxin substation pushes the inspection report file to the Baoxin main station through the communication protocol.

6. A master station inspection method based on weather conditions and device abnormality probability according to claim 1, characterized in that: After receiving the inspection report, the security main station starts the analysis report program, analyzes the inspection abnormal device and the inspection abnormal content, and displays the inspection abnormal device and the corresponding inspection abnormal content in an eye-catching manner in the alarm window.

7. A master station inspection method based on weather conditions and device abnormality probability according to claim 1, characterized in that: When abnormal devices appear in the inspection reports of the operation and maintenance systems in other areas, a comprehensive analysis is made on the abnormal probabilities of the devices in different time periods in the past year, and the devices in different annual inspection time periods are automatically screened out based on the time of the annual inspection next year.

8. A master station patrol system based on weather conditions and device abnormality probability, executing the method according to any one of claims 1 to 7, characterized in that: The system includes a trustworthy main station and trustworthy substation deployed in zone one and an operation and maintenance system deployed in zone three; The security master station is used to obtain the weather conditions of the next day from the weather system, and calculate the probability of abnormal inspection of the substation-end device within the set time and the probability of abnormal device under different weather conditions, and generate the next day's inspection plan in combination with the weather conditions of the next day and send it to the corresponding security substation at the substation end; the operation and maintenance master station analyzes the inspection report and sends an inspection abnormality alarm prompt, and at the same time pushes the inspection report to the operation and maintenance systems of other areas in real time, and automatically updates the annual inspection plan of the devices of the operation and maintenance systems of other areas; The security substation is used to conduct inspections according to the next day's inspection plan and generate inspection reports that are pushed to the operation and maintenance main station.

9. A master station patrol system based on weather conditions and device abnormality probability according to claim 8, characterized in that: The Baoxin main station is connected to the weather system through a firewall. The Baoxin main station and the weather system interact through E files. The weather system automatically generates an E file of the next day's weather conditions and actively pushes it to the Baoxin main station through the sftp service.

10. A terminal comprising a processor and a storage medium; characterized in that: The storage medium is used to store instructions; The processor is configured to operate according to the instructions to execute the steps of the method according to any one of claims 1-7.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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