CN113381877B - Operation and maintenance method and system supporting cross-power security access area - Google Patents
Operation and maintenance method and system supporting cross-power security access area Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/28—Restricting access to network management systems or functions, e.g. using authorisation function to access network configuration
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/20—Administration of product repair or maintenance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0246—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols
- H04L41/0266—Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols using meta-data, objects or commands for formatting management information, e.g. using eXtensible markup language [XML]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
Abstract
The invention discloses an operation and maintenance method and system supporting a cross-power safety access area.A communication server in the safety access area eliminates and processes monitored abnormity, writes unsuccessfully processed abnormity information and a solution result into a file, and sends a safety area corresponding to a front-end server through a reverse isolation device; the safety first-zone front-end server carries out elimination processing on the monitored abnormality and sends the unsuccessfully processed abnormality information and the solution result to a safety first-zone workstation through a network; the preposed server acquires abnormal information which cannot be eliminated by the communication server, assembles an operation and maintenance command and sends a standby communication server to execute the operation and maintenance command or forwards the abnormal information of the communication server to the workstation through a network; the safety first-region workstation issues an operation and maintenance command of repair operation to a front-end server or a communication server for execution; the safety first area preposition server or the safety access area communication server receives the operation and maintenance command, executes corresponding processing operation and sends the execution result to the workstation. The method has high operation and maintenance efficiency and is safer.
Description
Technical Field
The invention belongs to the technical field of operation and maintenance in a distribution network automation system, and particularly relates to an operation and maintenance method and system supporting a cross-power security access area.
Background
With the rapid development and application of new technologies such as low-voltage distribution network automation, ubiquitous power internet of things and the like, the scene that a power monitoring system uses a wireless public network for data communication is increasingly common, the number of terminals accessed through a security access area is an exponential growth trend, and great challenges are brought to operation and maintenance management work of the power monitoring system. In the past, in order to solve various complex problems encountered in operation and maintenance engineering, operation and maintenance personnel in the field often need to switch and log back and forth between front servers in a security area to perform operation and maintenance operations such as log query and information collection, so that operation and maintenance efficiency is greatly reduced; if emergency communication problems such as disconnection of a terminal and the like occur, the terminal needs to enter a safety access area machine room in person and log on a corresponding communication server to perform related operation and maintenance operations, timeliness and safety of problem processing are seriously affected, and great inconvenience is brought to operation and maintenance management operations.
Disclosure of Invention
Aiming at the problems, the invention provides an operation and maintenance method and system supporting a cross-power safety access area, and operation and maintenance personnel can only log in one workstation or a front server in the safety access area to process various emergency and complex problems without complicated switching login operation or entering a machine room of the safety access area for operation, so that the operation and maintenance efficiency can be improved practically.
The invention is realized by the following technical scheme: an operation and maintenance method supporting cross-power safety access areas comprises the following steps:
the safety access area communication server eliminates and processes the monitored abnormality according to a first abnormality coping strategy library according to a first abnormality characteristic library which is constructed in advance, writes unsuccessfully processed abnormality information and a solution result into a file, and sends a safety first area corresponding front-end server through a reverse isolation device;
the safety first-zone front-end server eliminates and processes the monitored abnormality according to a second abnormality coping strategy library according to a second abnormality characteristic library which is constructed in advance, and sends the unsuccessfully processed abnormality information and the solution result to a safety first-zone workstation through a network; the front-end server analyzes the file from the communication server, acquires abnormal information which cannot be eliminated by the communication server, assembles an operation and maintenance command according to a second abnormal coping strategy library, and sends a standby communication server to execute the operation and maintenance command or forwards the abnormal information of the communication server to the workstation through a network;
the safety first-zone workstation transmits an operation and maintenance command of repair operation to a front-end server or a communication server for execution according to a prestored third abnormal feature library and a received abnormal processing result and according to a third abnormal coping strategy library;
the safety first area preposition server or the safety access area communication server receives the operation and maintenance command, executes corresponding processing operation and sends the execution result to the workstation.
Further, the first abnormal feature library is stored on the communication server, and a priority of the first abnormal feature library to be processed is preset, and the first abnormal feature library includes:
the CPU occupancy rate, the memory occupancy rate and the disk utilization rate of the communication server exceed the preset normal threshold range; the network card of the communication server is in a LINK DOWN state; the communication server communication software module does not work, the communication link of the connected terminal is broken, and the communication port is closed.
Further, the first exception handling policy repository is stored on a communication server, and includes:
if the inquired process is not a key process of the distribution automation system, closing the process; otherwise, writing the inquired information of the process and the related abnormal information which is caused into the E file;
the utilization rate of the disk exceeds the preset normal threshold range, and the duration reaches the preset time, inquiring the file or directory causing the abnormality, performing compression backup on the related file or directory, and writing the information of the file or directory causing the abnormality into the E file;
the network card is in a LINK DOWN state, the network card is restarted through an operating system command, and if the abnormality cannot be solved, the abnormal information of the network card is written into an E file;
the communication software module does not work, and the software is restarted after the set working overtime time is reached;
a terminal communication link is broken, and a standby channel is switched; closing the communication port and automatically restarting the single port; and if the terminal access abnormity is not successfully solved, writing the abnormal information into an E file.
Further, the reverse isolation device scans the storage directory of the E file in the communication server at regular time, and sends the scanned E file to the security first zone front-end server.
Further, the second abnormal feature library is stored in the front-end server, and the priority of the second abnormal feature library to be processed is preset, including:
the prepositive server protocol software module processes the error report of the terminal message flow;
the working conditions of the terminal channels between the main machine and the standby machine of the front-end server are asynchronous;
and the information interaction between the front-end server and the SCADA background fails.
Further, the second exception handling policy repository is stored in the front-end server, and includes:
for the network card LINK DOWN abnormity which is not eliminated by the communication server, the operation and maintenance service software module of the front-end server forwards the abnormal information to the workstation;
for the communication software module which is not eliminated by the communication server, such as non-working, communication port closing and terminal channel access abnormity, the operation and maintenance service software module of the front-end server assembles related communication port and channel information into an operation and maintenance command, sends a standby communication server to execute the operation and maintenance command, and starts the communication port to take over a related channel by the standby server;
for the abnormality that the CPU occupation rate, the memory occupation rate and the disk utilization rate which are not eliminated by the communication server exceed the normal threshold range, the operation and maintenance service software module of the front-end server forwards the abnormal information to the workstation;
processing a terminal message flow error report by a protocol software module, checking a preposed protocol log and a terminal channel message log, and acquiring related terminal channel, power protocol type and service type information; sending the assembled operation and maintenance command for inquiring the terminal communication log to a communication server, and checking and analyzing terminal channel communication log information returned by the communication server by a front-end server operation and maintenance service software module; if the protocol software processing is abnormal due to the poor quality of the communication link, the operation and maintenance service software module of the front-end server assembles an operation and maintenance command for switching the communication link of the terminal and sends the operation and maintenance command to the communication server; if the communication link problem is not the problem, the abnormal information and the related log are sent to the workstation;
for the failure of information interaction between the front-end server and the SCADA background, the operation and maintenance service software module of the front-end server checks related logs or alarm contents, judges whether the software module receiving the SCADA message is abnormal or sends the abnormal software module of the SCADA message, and restarts the abnormal software module;
and for the condition state asynchronization of the terminal channel between the main machine and the standby machine of the front-end server, the operation and maintenance service software module of the front-end server inquires the related log of the software module responsible for synchronization, acquires the related terminal channel information, synchronizes all the data related to the terminal channel with the commercial database of the system, assembles the operation and maintenance command of the condition state information of the synchronous terminal channel, and sends the operation and maintenance command to the standby front-end server for execution.
Further, the front server analyzes the file from the communication server, obtains abnormal information that the communication server cannot eliminate, and assembles an operation and maintenance command according to a second abnormal coping strategy library to send a standby communication server to execute or forward the abnormal information of the communication server to the workstation through a network, including:
the front-end server analyzes the E file sent by the reverse isolation device, acquires abnormal information of processing failure of the communication server, deals with the strategy library according to a second abnormality on the machine, assembles an operation and maintenance command to send a standby communication server if the access of the terminal channel is abnormal, and executes the operations of opening a communication port and taking over the relevant terminal channel; otherwise, the abnormal information of the communication server is forwarded to the workstation through the network.
Further, the third abnormal feature library comprises all abnormal information of the first abnormal feature library and the second abnormal feature library;
the third exception coping strategy library includes:
for the abnormal LINK DOWN of the network card of the communication server, the workstation sends an operation and maintenance command to inquire the state of the network card of the standby communication server, if the state of the network card of the standby communication server is normal, the operation and maintenance command is assembled by the related information of all terminal channels of the original communication server, the operation and maintenance command is sent to the standby communication server, and the standby communication server takes over the related terminal channels; if the network card state of the standby communication server is also abnormal, displaying abnormal information on a human-computer interaction interface, and prompting operation and maintenance personnel to process;
for the abnormality of the communication server CPU occupation ratio and the memory occupation ratio, the workstation queries the distribution automation system according to the process name and the abnormality occurrence time in the received abnormal information content, acquires the log name of the process, assembles an operation and maintenance command and sends the communication server, queries the log at the abnormal moment of the process, displays the abnormal information and the related log on a human-computer interaction interface, and prompts operation and maintenance personnel to analyze and process;
for the abnormal use rate of the communication server disk, the workstation assembles an operation and maintenance command according to the file or directory name in the received abnormal information content and sends the operation and maintenance command to the communication server to obtain a compressed packet of the file or directory, and a human-computer interaction interface displays the abnormal information and the path of the compressed packet and prompts operation and maintenance personnel to process the abnormal information and the path of the compressed packet;
the protocol software module processes the error report exception of the terminal message flow, and the workstation acquires the prestored protocol specification and the relevant content of the correct message interaction flow according to the power protocol type and the service type information in the received exception information content and displays the protocol specification and the relevant content on the man-machine interaction interface.
Further, the workstation stores a pre-constructed inspection operation and maintenance command library according to the third abnormal feature library, and the method comprises the following steps:
checking a network card state command of a communication server;
checking a communication software module working state command of the communication server;
checking a communication server terminal communication port switch state command;
checking a communication server terminal channel link state command;
checking CPU occupancy rate, memory occupancy rate and disk utilization rate commands of the communication server;
checking whether the message log of the terminal is processed by a protocol software module of the front-end server to report an error command;
checking an information interaction state command between the front server and the SCADA background;
and checking whether the remote signaling telemetry data of the terminal channel between the main machine and the standby machine of the front-end server is synchronous command.
An operation and maintenance system supporting cross-power security access areas, comprising:
a plurality of groups of communication servers of a safety access area, a plurality of groups of workstations and front-end servers of a safety area;
the workstation of the first safety area and the front server carry out bidirectional data communication through the network of the first safety area;
the safety first-zone workstation or the front-end server carries out one-way data communication through a safety first-zone network, a forward isolation device and a safety access zone network to complete the issuing of operation and maintenance commands of the safety first-zone workstation or the front-end server across the safety access zone;
the safety access area communication server carries out one-way data communication through a reverse isolation and safety first area network to finish the uploading of the command execution result of the safety access area;
and the safe one-zone workstation or the front server receives the command execution result and displays the command execution result.
The invention has the beneficial effects that: the operation and maintenance personnel can perform operation and maintenance operations such as log query, information collection and the like on all the safety one-zone front-end servers or the safety access zone communication servers in the operation and maintenance system only by logging in the safety one-zone workstation or the front-end server, can conveniently handle various urgent and complex problems, does not need to perform complicated switching login operation, does not need to enter a safety access zone machine room for operation in person, can practically improve operation and maintenance efficiency, and has good application prospect.
Drawings
Fig. 1 is a schematic structural diagram of an operation and maintenance system supporting a cross-power security access area according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
Example 1:
an operation and maintenance method supporting cross-power safety access areas comprises the following steps:
step 1, a safety access area communication server eliminates and processes monitored abnormalities according to a first abnormality coping strategy library according to a first abnormality characteristic library which is constructed in advance, writes unsuccessfully processed abnormality information and solution results into a file according to an E language (electric power system data mark) format, and sends a safety first area corresponding front-end server through a reverse isolation device;
the method comprises the following specific steps:
(1) the communication server stores a pre-constructed first anomaly feature library, including but not limited to the following anomalies:
the communication server CPU occupation rate, the memory occupation rate and the disk utilization rate exceed the preset normal threshold range;
secondly, the network card of the communication server is in a LINK DOWN state;
the communication server communication software module does not work, the communication link of the connected terminal is broken, and the communication port is closed;
(2) according to factors such as urgency, severity and influence range of faults of the power distribution automation system possibly caused by the first abnormal feature library, the priority of the first abnormal feature library to be processed is preset, for example;
firstly, a network card of a communication server is in a LINK DOWN state, faults such as communication server offline, channel working condition and terminal working condition quitting are possibly directly caused, faults such as corresponding preposed server offline are possibly indirectly caused, and the communication server is set to be in a high priority level;
closing the communication port, and setting the communication port as a high priority level if the communication port is in a single-port multiplexing scene, namely a plurality of terminals use the same port to receive and transmit messages; otherwise, the priority is set as the middle priority;
the communication software module does not work, and if the communication software module is the server software accessed to the multiple terminals, the communication software module is set to be in high priority; if the client software is one-to-one client software, setting the client software as a medium priority;
fourthly, the terminal communication link is broken, which may cause the exit of the terminal working condition and the channel working condition, and the terminal communication link is set as a low priority;
the communication server CPU occupation rate, the memory occupation rate and the disk utilization rate exceed the preset normal threshold range, the long-time non-processing may cause the processing performance of the distribution automation system software module to be reduced, the writing of the E file and the log file fails and other faults, the timely processing can eliminate the abnormity, and the communication server CPU occupation rate, the memory occupation rate and the disk utilization rate are set as low priority;
(3) the communication server stores a pre-constructed first exception handling policy library, including but not limited to the following handling policies:
CPU occupancy rate and memory occupancy rate continuously exceed the preset normal threshold range, and the duration reaches the preset time, the abnormal process is inquired through the command of an operating system, if the inquired process is not the key process of the distribution automation system, the process is tried to be closed; otherwise, writing the inquired process information and the abnormal information related to the CPU and the memory into an E file;
if the disk utilization rate exceeds the preset normal threshold range and the duration reaches the preset time, inquiring the file or directory causing the abnormality through an operating system command, performing compressed backup on the related file or directory, and writing the file or directory information causing the abnormality into the E file;
thirdly, the network card is in a LINK DOWN state, the network card is restarted through an operating system command, and if the abnormality cannot be solved, the abnormal information of the network card is written into an E file;
fourthly, the communication software module does not work, and the software is restarted after the set working overtime time is reached; a terminal communication link is broken, and a standby channel is switched; closing the communication port and automatically restarting the single port; if the access exception of the terminal is not successfully solved, writing the exception information into an E file;
(4) the communication server monitors abnormal information, and if a solution exists in the first abnormal coping strategy library, the abnormal information is eliminated; if the solution method is not retrieved or the processing fails, writing the abnormal information and the solution result into an E file;
(5) if a plurality of anomalies are monitored simultaneously, sequentially processing the anomalies according to the priority levels of the anomalies;
(6) the reverse isolation device scans the storage directory of the E file at regular time and sends the scanned E file to a security first-zone front-end server;
step 2, the safety first-region front-end server eliminates and processes the monitored abnormality according to a second abnormality coping strategy library according to a second abnormality characteristic library which is constructed in advance, and sends the unsuccessfully processed abnormality information and the solution result to a safety first-region workstation through a network; meanwhile, the front-end server analyzes the E file from the communication server, acquires abnormal information which cannot be eliminated by the communication server, and assembles an operation and maintenance command according to a second abnormal coping strategy library to send a standby communication server to execute or forward the abnormal information of the communication server to a workstation through a network;
the operation and maintenance command comprises an operating system native command and a self-defined command realized by software for routing inspection, repairing and diagnosing abnormity, and the format of the operation and maintenance command comprises the following components: command name, command parameter, command priority, issuing server, target server, etc.
The method specifically comprises the following steps:
(1) the front-end server stores a pre-constructed second anomaly feature library, including but not limited to the following anomalies:
firstly, a prepositive server protocol software module processes the error report of a terminal message flow;
the working conditions of the terminal channels between the main machine and the standby machine of the front-end server are asynchronous;
information interaction between the front-end server and the SCADA background fails;
(2) according to the abnormality which is acquired by the front-end server and is not successfully eliminated by the communication server and factors such as urgency, severity and influence range of faults of the power distribution automation system which are possibly caused by the monitored second abnormal feature library, the priority to be processed of the second abnormal feature library is preset, for example;
firstly, network card abnormity which is not solved by a communication server can cause access abnormity of a large number of terminals, examination indexes which may influence the online rate of the terminals and the like are not processed in time, and the examination indexes are set as high priority;
information interaction between the front-end server and the SCADA background fails, so that remote control failure can be caused, the automation of a feeder is influenced, and the feeder is set as a high priority;
thirdly, the prepositive server protocol software module processes the terminal message flow error report, possibly causes the terminal working condition to exit, and sets the terminal working condition as a medium priority;
fourthly, the working condition states of the terminal channel between the main machine and the standby machine of the front server are asynchronous, which may cause abnormal alarm of the working condition of the terminal channel and is set as a low priority;
(3) the front-end server stores a pre-constructed second exception handling policy library, including but not limited to the following handling policies:
firstly, for the network card LINK DOWN abnormity which is not eliminated by the communication server, the operation and maintenance service software module of the prepositive server forwards the abnormal information to the workstation;
for terminal channel access abnormalities such as non-operation of a communication software module, closing of a communication port, chain breakage of a terminal communication link and the like of the communication server which are not eliminated, the operation and maintenance service software module of the front-end server assembles information such as the related communication port, the channel and the like into an operation and maintenance command, sends a standby communication server to execute the operation and maintenance command, and starts the communication port to take over a related channel by the standby server;
if the CPU occupation rate, the memory occupation rate and the disk utilization rate which are not eliminated by the communication server exceed the normal threshold range, the preposed server operation and maintenance service software module forwards the abnormal information to the workstation;
fourthly, processing terminal message flow error report by the protocol software module, checking a preposed protocol log and a terminal channel message log, and acquiring information such as a related terminal channel, a power protocol type, a service type and the like; sending the assembled operation and maintenance command for inquiring the terminal communication log to a communication server, and checking and analyzing terminal channel communication log information returned by the communication server by a front-end server operation and maintenance service software module; if the protocol software processing is abnormal due to the poor quality of the communication link, the operation and maintenance service software module of the front-end server assembles an operation and maintenance command for switching the communication link of the terminal and sends the operation and maintenance command to the communication server; if the communication link problem is not the problem, the abnormal information and the related log are sent to the workstation;
for the failure of information interaction between the front-end server and the SCADA background, the operation and maintenance service software module of the front-end server checks related logs or alarm contents, determines whether the software module receiving the SCADA message is abnormal or sends the abnormal software module of the SCADA message, and restarts the abnormal software module;
sixthly, for the condition state asynchronization of the terminal channel between the main machine and the standby machine of the preposed server, the operation and maintenance service software module of the preposed server inquires the related log of the software module responsible for synchronization, acquires the related terminal channel information, synchronizes all the data related to the terminal channel with the commercial database of the system, then assembles the operation and maintenance command of the condition state information of the synchronous terminal channel, and sends the standby preposed server to execute the operation and maintenance command;
(4) the preposed server monitors the abnormality of the local machine, eliminates the abnormality according to a solution provided by a second abnormality coping strategy library of the local machine, and sends the abnormality information which is not successfully eliminated to a workstation through a network;
(5) analyzing the E file sent by the reverse isolation device, acquiring abnormal information of processing failure of the communication server, responding to a policy library according to a second abnormality on the machine, if the access of the terminal channel is abnormal, assembling an operation and maintenance command to send a standby communication server, and executing the operation of opening a communication port and taking over the relevant terminal channel; otherwise, the abnormal information of the communication server is forwarded to the workstation through the network;
step 3, the safety first-zone workstation issues an operation and maintenance command of repair operation to a front-end server or a communication server to execute according to a prestored third abnormal feature library and a received related abnormal processing result and a third abnormal coping strategy library; in addition, there are two scenarios for issuing the operation and maintenance command: the workstation periodically issues an operation and maintenance command of the inspection operation and an operation and maintenance command of the diagnosis operation when an operation and maintenance person encounters a system fault according to the inspection operation command library;
the operation and maintenance command format is the same as the operation and maintenance command format in step 2, and comprises the following steps: command name, command parameters, command priority, issuing server, target server, etc.
The method comprises the following specific steps:
(1) the workstation collects the abnormal information of the front server and the communication server in advance and constructs a third abnormal feature library;
(2) the workstation stores a pre-built third exception coping strategy library including, but not limited to, the following strategies:
firstly, for the abnormal LINK DOWN of a communication server network card, a workstation issues an operation and maintenance command to inquire the state of a standby communication server network card, if the state of the standby communication server network card is normal, the operation and maintenance command is assembled by the related information of all terminal channels of the original communication server, the operation and maintenance command is sent to the standby communication server, and the standby communication server takes over the related terminal channels; if the network card state of the standby communication server is abnormal, displaying abnormal information on a man-machine interaction interface and prompting operation and maintenance personnel to process;
for the abnormality of the communication server CPU occupation ratio and the memory occupation ratio, the workstation queries the distribution automation system according to the process name and the abnormality occurrence time in the received abnormal information content, acquires the log name of the process, assembles an operation and maintenance command and sends a communication server, queries the log at the abnormal time of the process, displays the abnormal information and the related log on a human-computer interaction interface, and prompts operation and maintenance personnel to analyze and process;
for the abnormal use rate of the communication server disk, the workstation assembles an operation and maintenance command according to the file or directory name in the received abnormal information content and sends the operation and maintenance command to the communication server to obtain a compressed packet of the file or directory, and a human-computer interaction interface displays the abnormal information and a compressed packet path and prompts operation and maintenance personnel to process the abnormal information and the compressed packet path;
the protocol software module processes the error reporting exception of the terminal message flow, and the workstation acquires the prestored protocol specification and the relevant content of the correct message interaction flow according to the information such as the power protocol type, the service type and the like in the received exception information content, displays the information on a human-computer interaction interface, and is convenient for operation and maintenance personnel to compare and refer when analyzing and processing exception information;
(3) and the workstation stores a pre-constructed inspection operation and maintenance command library according to the third abnormal feature library, wherein the pre-constructed inspection operation and maintenance command library comprises but is not limited to the following operation and maintenance commands realized through software programming:
checking a network card state command of a communication server;
checking a communication software module working state command of the communication server;
checking the on-off state command of the communication port of the communication server terminal;
checking the link state command of the communication server terminal channel;
checking communication server CPU occupancy rate, memory occupancy rate and disk usage rate commands;
checking whether the message log of the terminal is processed by the protocol software module of the prepositive server to report an error command;
checking an information interaction state command between the front server and the SCADA background;
checking whether the remote signaling and telemetering data of a terminal channel between the main machine and the standby machine of the front server are synchronous or not;
(4) the workstation periodically issues operation and maintenance commands to the front-end server or the communication server to execute according to the inspection operation command library;
(5) the workstation receives the abnormal information of the front server or the communication server, writes the abnormal information into an abnormal information historical library, is used for big data analysis and perfecting an automatic operation and maintenance management process, and displays the abnormal information which is not successfully eliminated on a human-computer interaction interface;
(6) if the third abnormal coping strategy library has a coping strategy corresponding to the abnormality, the workstation operation and maintenance command assembly module acquires information such as a command name and a command parameter, assembles the operation and maintenance command of the repairing operation according to the operation and maintenance command format, sends the operation and maintenance command to a corresponding front-end server or a communication server for execution, tries to eliminate the abnormality and avoids causing system faults; if the third exception coping strategy library has no solution, prompting operation and maintenance personnel to manually handle the exception;
(7) when an operation and maintenance worker carries out manual operation and maintenance patrol inspection operation, the workstation operation and maintenance command assembly module acquires a command name and command parameters input by the operation and maintenance worker, inquires information such as a target server, a terminal and a channel acquired by a power distribution automation system, and transmits an operation and maintenance command of the assembly diagnosis operation to a front-end server or a communication server for execution;
(8) the workstation records the step of manually processing the exception by the operation and maintenance personnel, and if the exception is successfully solved, the step of manually processing is taken as a coping strategy of the exception and added to a third exception coping strategy library; otherwise, deleting the previous record;
step 4, the safety first-zone front-end server or the safety access zone communication server receives the operation and maintenance command issuing message, executes corresponding processing operation and sends the execution result to the workstation;
the method specifically comprises the following steps:
(1) the prepositive server or the communication server configures an operation and maintenance command forbidden to be executed according to security and protection requirements;
(2) the server receives the operation and maintenance command issuing message, and analyzes the command name, the command parameter, the command priority, the issuing server, the target server and other information;
(3) if the target server is not local or the operation and maintenance command is forbidden to operate, the operation and maintenance command is not processed;
(4) if a plurality of operation and maintenance commands are received at the same time, the operation and maintenance commands are executed in sequence according to the priority of the operation and maintenance commands;
(5) the server returns the execution result to the workstation;
step 5, the workstation or the front server receives the operation and maintenance command execution result returned in the step 4, compares the operation and maintenance command execution result with a normal result, displays the original operation and maintenance command execution result returned in the step 4 on the human-computer interaction interface, and gives an analysis conclusion and a troubleshooting step for the abnormal result to be referred by operation and maintenance personnel during further processing;
the method specifically comprises the following steps:
(1) when the prepositive server and the communication server stably run without exception, executing the operation and maintenance command to obtain an execution result, and constructing a normal result library for executing the operation and maintenance command when the system runs without exception;
examples are as follows:
firstly, executing a command for checking the network card state of the communication server, and returning a result that the network card state is normal;
executing a command for checking the state of the communication software module of the communication server, and returning a result of normal working of the state of the communication software module;
checking whether the message log of the terminal is processed by the protocol software module of the front-end server to report an error command or not, and returning a result that the related log does not process the error report;
(2) according to the operation and maintenance management experience of the distribution network automation system, an abnormal result reason library executed by an operation and maintenance command is input in advance, and the abnormal result reason library is continuously supplemented and perfected in the subsequent actual abnormal elimination process;
for example, the reason why the operation and maintenance command of the message log of the terminal is processed by executing the software module for checking the protocol of the front-end server and the error reporting exception result is returned is as follows:
firstly, the related business process of the protocol software module does not completely complete the related message processing function according to the protocol specification; message receiving and sending disorder is caused by communication link abnormality of the terminal channel, and further protocol software module processing abnormality is caused;
thirdly, the terminal sends the message up without following the specification;
(3) according to the probability of possible reasons of the abnormal result and the difficulty degree of the investigation, an investigation step library of the abnormal result is input in advance, and is continuously refined and perfected in the subsequent actual abnormal elimination process;
taking the example that the operation and maintenance command of the message log of the terminal is processed by executing the software module for checking the protocol of the front-end server, and the error reporting abnormal result is returned, the checking steps are as follows:
checking whether a communication link of a terminal channel is in a link establishment state;
checking whether the terminal sends the message according to the specification;
checking whether a protocol software module carries out message processing according to protocol specifications;
(4) when the execution result of the operation and maintenance command is inconsistent with the normal result, inquiring an abnormal result reason library and giving the relevant reasons of the abnormal result;
(5) and (5) diagnosing and processing the operation and maintenance personnel according to the checking step library.
Example 2:
as shown in fig. 1, an operation and maintenance system supporting cross-power safety access area includes:
a plurality of groups of communication servers of a safety access area, a plurality of groups of workstations and front-end servers of a safety area;
the workstation of the first safety area and the front server carry out bidirectional data communication through the network of the first safety area;
the safety first-zone workstation or the front-end server carries out one-way data communication through a safety first-zone network, a forward isolation device and a safety access zone network to complete the issuing of operation and maintenance commands of the safety first-zone workstation or the front-end server across the safety access zone;
the safety access area communication server carries out one-way data communication through a reverse isolation and safety first area network to finish the uploading of the command execution result of the safety access area;
and the safe one-zone workstation or the front server receives the command execution result and displays the command execution result.
The operation and maintenance method in embodiment 1 is executed on this system.
The method of the invention enables the operation and maintenance personnel to directly inquire the relevant operation and maintenance information on other front-end servers in the first safety area on any workstation or front-end server in the first safety area without switching and logging in the target front-end server, thereby avoiding unnecessary time waste; the operation and maintenance personnel can also inquire related operation and maintenance information on the communication server across the safety access area, and do not need to enter a machine room of the safety access area to log in the communication server, so that the daily operation and maintenance work is more efficient and safer.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiment, and that the foregoing embodiment and description are provided as illustration of the principles of the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An operation and maintenance method supporting a cross-power security access area is characterized in that: the method comprises the following steps:
the safety access area communication server eliminates and processes the monitored abnormality according to a first abnormality coping strategy library according to a first abnormality characteristic library which is constructed in advance, writes unsuccessfully processed abnormality information and a solution result into a file, and sends a safety first area corresponding front-end server through a reverse isolation device;
the safety first-zone front-end server eliminates and processes the monitored abnormality according to a second abnormality coping strategy library according to a second abnormality characteristic library which is constructed in advance, and sends the unsuccessfully processed abnormality information and the solution result to a safety first-zone workstation through a network; the front-end server analyzes the file from the communication server, acquires abnormal information which cannot be eliminated by the communication server, assembles an operation and maintenance command according to a second abnormal coping strategy library, and sends a standby communication server to execute the operation and maintenance command or forwards the abnormal information of the communication server to the workstation through a network;
the safety first-zone workstation transmits an operation and maintenance command of repair operation to a front-end server or a communication server for execution according to a prestored third abnormal feature library and a received abnormal processing result and according to a third abnormal coping strategy library;
the safety first area preposition server or the safety access area communication server receives the operation and maintenance command, executes corresponding processing operation and sends the execution result to the workstation.
2. The operation and maintenance method supporting cross-power security access area according to claim 1, wherein: the first abnormal feature library is stored on the communication server, and the priority of the first abnormal feature library to be processed is preset, and the first abnormal feature library comprises:
the CPU occupancy rate, the memory occupancy rate and the disk utilization rate of the communication server exceed the preset normal threshold range; the network card of the communication server is in a LINK DOWN state; the communication server communication software module does not work, the communication link of the connected terminal is broken, and the communication port is closed.
3. The operation and maintenance method supporting cross-power security access area according to claim 2, wherein: the first exception handling policy repository is stored on a communication server and comprises:
if the inquired process is not a key process of the distribution automation system, closing the process; otherwise, writing the inquired information of the process and the related abnormal information which is caused into the E file;
the utilization rate of the disk exceeds the preset normal threshold range, and the duration reaches the preset time, inquiring the file or directory causing the abnormality, performing compression backup on the related file or directory, and writing the information of the file or directory causing the abnormality into the E file;
the network card is in a LINK DOWN state, the network card is restarted through an operating system command, and if the abnormality cannot be solved, the abnormal information of the network card is written into an E file;
the communication software module does not work, and the software is restarted after the set working overtime time is reached;
a terminal communication link is broken, and a standby channel is switched; closing the communication port and automatically restarting the single port; and if the terminal access abnormity is not successfully solved, writing the abnormal information into an E file.
4. The operation and maintenance method supporting cross-power security access area according to claim 3, wherein: the reverse isolation device scans the storage directory of the E file in the communication server at regular time and sends the scanned E file to the safety first-zone front-end server.
5. The operation and maintenance method supporting cross-power security access area according to claim 1, wherein: the second abnormal feature library is stored in the front-end server, and the priority of the second abnormal feature library to be processed is preset, including:
the prepositive server protocol software module processes the error report of the terminal message flow;
the working conditions of the terminal channels between the main machine and the standby machine of the front-end server are asynchronous;
and the information interaction between the front-end server and the SCADA background fails.
6. The operation and maintenance method supporting cross-power security access area according to claim 5, wherein: the second exception handling policy repository is stored in the front-end server and includes:
for the network card LINK DOWN abnormity which is not eliminated by the communication server, the operation and maintenance service software module of the front-end server forwards the abnormal information to the workstation;
for the communication software module which is not eliminated by the communication server, such as non-working, communication port closing and terminal channel access abnormity, the operation and maintenance service software module of the front-end server assembles related communication port and channel information into an operation and maintenance command, sends a standby communication server to execute the operation and maintenance command, and starts the communication port to take over a related channel by the standby server;
for the abnormality that the CPU occupation rate, the memory occupation rate and the disk utilization rate which are not eliminated by the communication server exceed the normal threshold range, the operation and maintenance service software module of the front-end server forwards the abnormal information to the workstation;
processing a terminal message flow error report by a protocol software module, checking a preposed protocol log and a terminal channel message log, and acquiring related terminal channel, power protocol type and service type information; sending the assembled operation and maintenance command for inquiring the terminal communication log to a communication server, and checking and analyzing terminal channel communication log information returned by the communication server by a front-end server operation and maintenance service software module; if the protocol software processing is abnormal due to the fact that the communication link quality is poor, the operation and maintenance command for switching the terminal communication link is assembled by the operation and maintenance service software module of the front-end server, and the communication server is sent; if the communication link problem is not the problem, the abnormal information and the related log are sent to the workstation;
for the failure of information interaction between the front-end server and the SCADA background, the operation and maintenance service software module of the front-end server checks related logs or alarm contents, judges whether the software module receiving the SCADA message is abnormal or sends the abnormal software module of the SCADA message, and restarts the abnormal software module;
and for the condition state asynchronization of the terminal channel between the main machine and the standby machine of the front-end server, the operation and maintenance service software module of the front-end server inquires the related logs of the software module responsible for synchronization, acquires the related terminal channel information, synchronizes all the data related to the terminal channel with a commercial database of the system, assembles the operation and maintenance command of the condition state information of the synchronous terminal channel and sends the operation and maintenance command of the standby front-end server to execute.
7. The operation and maintenance method supporting cross-power security access area according to claim 1, wherein: the front server analyzes the file from the communication server, acquires abnormal information which cannot be eliminated by the communication server, and assembles an operation and maintenance command according to a second abnormal coping strategy library to send a standby communication server to execute or forward the abnormal information of the communication server to a workstation through a network, wherein the operation and maintenance command comprises:
the front-end server analyzes the E file sent by the reverse isolation device, obtains abnormal information of processing failure of the communication server, and according to a second abnormal coping strategy library on the front-end server, if the access of the terminal channel is abnormal, an operation and maintenance command is assembled to send a standby communication server, and a communication port is opened and the operation of taking over the relevant terminal channel is executed; otherwise, the abnormal information of the communication server is forwarded to the workstation through the network.
8. The operation and maintenance method supporting cross-power security access area according to claim 1, wherein: the third abnormal feature library comprises all abnormal information of the first abnormal feature library and the second abnormal feature library;
the third exception coping strategy library includes:
for the abnormal LINK DOWN of the network card of the communication server, the workstation sends an operation and maintenance command to inquire the state of the network card of the standby communication server, if the state of the network card of the standby communication server is normal, the operation and maintenance command is assembled by the related information of all terminal channels of the original communication server, the operation and maintenance command is sent to the standby communication server, and the standby communication server takes over the related terminal channels; if the network card state of the standby communication server is also abnormal, displaying abnormal information on a human-computer interaction interface, and prompting operation and maintenance personnel to process;
for the abnormality of the communication server CPU occupation ratio and the memory occupation ratio, the workstation queries the distribution automation system according to the process name and the abnormality occurrence time in the received abnormal information content, acquires the log name of the process, assembles an operation and maintenance command and sends the communication server, queries the log at the abnormal moment of the process, displays the abnormal information and the related log on a human-computer interaction interface, and prompts operation and maintenance personnel to analyze and process;
for the abnormal use rate of the communication server disk, the workstation assembles an operation and maintenance command according to the file or directory name in the received abnormal information content and sends the operation and maintenance command to the communication server to obtain a compressed packet of the file or directory, and a human-computer interaction interface displays the abnormal information and the path of the compressed packet and prompts operation and maintenance personnel to process the abnormal information and the path of the compressed packet;
the protocol software module processes the error report exception of the terminal message flow, and the workstation acquires the prestored protocol specification and the relevant content of the correct message interaction flow according to the power protocol type and the service type information in the received exception information content and displays the protocol specification and the relevant content on the man-machine interaction interface.
9. The method of claim 8, wherein the method comprises the steps of: the workstation is according to third unusual feature library, and the operation of storage inspection operation that builds in advance maintains the command bank, includes:
checking a network card state command of a communication server;
checking a communication software module working state command of the communication server;
checking a communication server terminal communication port switch state command;
checking a communication server terminal channel link state command;
checking communication server CPU occupancy rate, memory occupancy rate and disk usage rate commands;
checking whether the message log of the terminal is processed by a protocol software module of the front-end server to report an error command;
checking an information interaction state command between the front server and the SCADA background;
and checking whether the remote signaling telemetry data of the terminal channel between the main machine and the standby machine of the front-end server is synchronous command.
10. An operation and maintenance system supporting an operation and maintenance method across power security access areas based on any one of claims 1 to 9, comprising:
a plurality of groups of communication servers of a safety access area, a plurality of groups of workstations and front-end servers of a safety area;
the workstation of the first safety area and the front server carry out bidirectional data communication through the network of the first safety area;
the safety first-zone workstation or the front-end server carries out one-way data communication through a safety first-zone network, a forward isolation device and a safety access zone network to complete the issuing of operation and maintenance commands of the safety first-zone workstation or the front-end server across the safety access zone;
the safety access area communication server carries out one-way data communication through a reverse isolation and safety one-area network to finish the uploading of the command execution result of the safety access area;
and the safe one-zone workstation or the front server receives the command execution result and displays the command execution result.
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