CN110752943B - Distributed fault diagnosis system and method for power transmission line - Google Patents

Distributed fault diagnosis system and method for power transmission line Download PDF

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Publication number
CN110752943B
CN110752943B CN201910902884.2A CN201910902884A CN110752943B CN 110752943 B CN110752943 B CN 110752943B CN 201910902884 A CN201910902884 A CN 201910902884A CN 110752943 B CN110752943 B CN 110752943B
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micro
service unit
message
service
communication
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CN110752943A (en
Inventor
饶丹
周华良
宋斌
李友军
李临风
张恒
吴通华
王军
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Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
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Nari Technology Co Ltd
NARI Nanjing Control System Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0677Localisation of faults
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/085Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/02Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/34Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/56Provisioning of proxy services
    • H04L67/565Conversion or adaptation of application format or content
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08Protocols for interworking; Protocol conversion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/02Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0209Architectural arrangements, e.g. perimeter networks or demilitarized zones

Abstract

The invention discloses a distributed fault diagnosis system and a distributed fault diagnosis method for a power transmission line. The central station server comprises a communication micro-service unit, a core micro-service unit and a fault location micro-service unit; the preposed server receives the data message sent by the monitoring terminal and stores the data message in a database; the communication micro-service unit reads the data message from the database and forms a file; the method comprises the steps that a core micro-service unit receives an interactive message sent by a communication micro-service unit, finds out a corresponding fault distance measurement micro-service unit based on ID information in the interactive message, and sends a file obtained from the communication micro-service unit to the fault distance measurement micro-service unit; and the fault location micro-service unit completes fault diagnosis based on the received file. The invention can greatly shorten the time for accessing fault location terminals (namely fault location micro-service units) of different manufacturers to the system and improve the operation and maintenance efficiency.

Description

Distributed fault diagnosis system and method for power transmission line
Technical Field
The invention belongs to the technical field of power grid operation and maintenance, and particularly relates to a distributed fault diagnosis system and method for a power transmission line.
Background
The overhead transmission line has multiple points, long line length, wide area and complex network structure, is distributed in the field with severe environment, causes great difficulty in inspection of equipment, and is often subjected to natural disasters (factors such as lightning stroke, rainstorm, heavy snow, strong wind and extreme severe weather, bird damage and the like) and external force damage (reasons such as various building construction, traffic accidents, artificial theft and the like) in the actual operation process to cause the short-circuit tripping of the grounding of the line, even the line is broken, the line paralysis is caused, large-area power failure is caused, and certain influence is brought to the stable, safe, economic, high-efficiency and high-quality operation of the power grid in China.
In recent years, a wireless autonomous network is combined with network technology of a sink node accessing to the internet, so that the monitoring and fault positioning technology of a power transmission line is developed. The distributed traveling wave has excellent performance in power transmission line fault location, so that the distributed traveling wave is developed rapidly, a plurality of power transmission line fault diagnosis monitoring terminal manufacturers move a diagnosis and location function module to a central station, the central station needs to have transverse expansion capability, application deployment is simplified, and requirements of storing and analyzing mass large data of original messages without interruption are supported. Therefore, higher requirements are also put forward on the aspects of intellectualization, platform, safety and the like of the system.
The distributed fault diagnosis system is complex in network structure, multiple in hop and long in link, a centralized preposition is designed according to the requirements of a safety system, an integral network architecture which isolates an internal network from an external network and externally arranges partial functions, on the basis of the architecture, the power transmission line distributed fault diagnosis system based on the micro-service architecture is provided, the MQTT message bus, the docker and the distributed cluster technology are adopted, the limitation and the defect of the traditional architecture are overcome, loose coupling interaction between service and the system is realized, the ranging application of each manufacturer is dynamically loaded in an APP mode, the modules of each manufacturer are plugged and used in a fault ranging micro-service mode, the time of accessing terminals of different manufacturers into the system is shortened, and the operation and maintenance efficiency is improved. The central station and the edge agent realize protocol conversion and interconnection between the sensing network and the communication network and between different types of sensing networks through an MQTT Internet of things protocol and through network connection equipment deployed on a sensing layer of the Internet of things.
Disclosure of Invention
Aiming at the problems, the invention provides a distributed fault diagnosis system and method for a power transmission line, which solve the problem of seamless access of fault location terminals (namely fault location micro-service units) of various manufacturers, realize that the fault location terminals of various manufacturers can be dynamically loaded in an APP mode, realize plug and play of the fault location terminals of various manufacturers through the fault location micro-service mode, and improve the debugging operation and maintenance efficiency and the system stability.
In order to achieve the technical purpose and achieve the technical effects, the invention is realized by the following technical scheme:
in a first aspect, the invention provides a distributed fault diagnosis system for a power transmission line, which comprises a monitoring terminal, a front server and a central station server, wherein the central station server comprises a communication micro-service unit, a core micro-service unit and a fault location micro-service unit;
the front server receives the data message sent by the monitoring terminal and stores the data message in a database;
the communication micro-service unit reads the data message from the database and forms a file;
the core micro-service unit receives an interactive message sent by a communication micro-service unit, finds out a corresponding fault location micro-service unit based on ID information in the interactive message, and sends a file acquired from the communication micro-service unit to the fault location micro-service unit;
and the fault location micro-service unit completes fault diagnosis based on the received file.
Optionally, the fault location microserver unit further returns a processing result to the core microserver unit;
the core micro-service unit stores the processing result and sends a service message response containing monitoring data to the communication micro-service;
the communication micro-service unit responds to a response message forming a monitoring data message based on the received service message and stores the response message in a database;
and the front-end server takes out the response message from the database and sends the response message to the monitoring terminal.
Optionally, a convergence unit and an edge proxy unit, which are sequentially connected, are arranged between the monitoring terminal and the front-end server, wherein the convergence unit is further connected with the monitoring terminal, and the edge proxy unit is further connected with the front-end server.
Optionally, an isolation device is disposed between the fault diagnosis unit and the front-end server.
Optionally, the communication micro-service unit, the core micro-service unit, and the fault location micro-service unit all exist in a container mode, and interact with each other through an MQTT communication protocol.
Optionally, the distributed fault diagnosis system of the power transmission line further includes a WEB micro-service unit;
the WEB micro-service unit acquires operation command information according to user operation and sends the operation command information to the core micro-service unit;
the core micro-service unit generates a first service interaction message based on the received operation command information, and forwards the first service interaction message to a communication micro-service unit;
the communication micro-service unit converts the received first service interaction message into a first device communication message which is expressed according to the bit and stores the first device communication message in a database;
the front-end server reads a first device communication message from a database and sends the first device communication message to a corresponding monitoring terminal;
the monitoring terminal responds to the received first device communication message and sends a second device communication message to the front-end server;
the front server stores the received communication message of the second device into a database;
the communication micro-service unit takes out the second device communication message from the database, converts the second device communication message into a second service interaction message and sends the second service interaction message to the core micro-service unit;
and the core micro-service unit stores the result of command processing contained in the second service interaction message based on the received second service interaction message, informs the WEB micro-service unit of WEB page updating by using a trigger event, and displays the result of command processing.
Optionally, the communication micro-service unit, the core micro-service unit, the fault location micro-service unit and the WEB micro-service unit all have unique uuid for identifying identity; and the core micro-service unit and the WEB micro-service unit are interacted by adopting an MQTT communication protocol.
In a second aspect, the present invention provides a distributed fault diagnosis method for a power transmission line, including:
receiving a data message sent by a monitoring terminal by using a front-end server and storing the data message in a database;
reading data messages from a database by using a communication micro-service unit and forming a file;
receiving an interactive message sent by a communication micro-service unit by using a core micro-service unit, finding out a corresponding fault distance measuring micro-service unit based on ID information in the interactive message, and sending a file acquired from the communication micro-service unit to the fault distance measuring micro-service unit;
and completing fault diagnosis based on the received file by utilizing the fault distance measuring micro-service unit.
Optionally, the method for diagnosing a distributed fault of a power transmission line further includes:
returning a processing result to the core micro-service unit by using the fault location micro-service unit;
storing the processing result by using a core micro-service unit, and sending a service message response containing monitoring data to the communication micro-service;
forming a response message of the monitoring data message by using the communication micro-service unit based on the received service message response, and storing the response message into a database;
and taking out the response message from the database by using the front-end server, and sending the response message to the monitoring terminal.
Optionally, the method for diagnosing a distributed fault of a power transmission line further includes:
acquiring operation command information according to user operation by using a WEB micro-service unit, and sending the operation command information to a core micro-service unit;
generating a first service interaction message based on the received operation command information by using a core micro-service unit, and forwarding the first service interaction message to a communication micro-service unit;
converting the received first service interaction message into a first device communication message which is expressed according to the bit by using a communication micro-service unit, and storing the first device communication message in a database;
reading a first device communication message from a database by using a front-end server, and sending the first device communication message to a corresponding monitoring terminal;
responding the received first device communication message by using the monitoring terminal, and sending a second device communication message to the front-end server;
storing the received communication message of the second device into a database by using the front server;
the communication micro-service unit is used for taking out the second device communication message from the database, converting the second device communication message into a second service interaction message and then sending the second service interaction message to the core micro-service unit;
and the core micro-service unit is used for storing a command processing result contained in the second service interaction message based on the received second service interaction message, informing the WEB micro-service unit to update the WEB page by using a trigger event, and displaying the command processing result.
Compared with the prior art, the invention has the beneficial effects that:
the invention can overcome the limitation and the defect of the traditional architecture, solve the seamless adaptation of the multi-service application module, realize the decoupling of system resources and application and improve the transverse expandability of the system. The problem of each manufacturer's fault location terminal (be fault location micro service unit) seamless access is solved, realize that each manufacturer's fault location terminal can APP the mode dynamic loading, reach each manufacturer's fault location terminal and realize plug-and-play through the little service form of fault location, improve debugging fortune dimension efficiency and system stability.
Furthermore, the invention realizes protocol conversion and interconnection between the sensing network and the communication network and between different types of sensing networks through the MQTT Internet of things protocol and the network connection equipment deployed on the sensing layer of the Internet of things.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of an architecture of a distributed fault diagnosis system provided in accordance with an embodiment of the present invention;
FIG. 2 is a flowchart of microservice interaction provided in accordance with an embodiment of the present invention;
FIG. 3 is a diagram of MQTT interaction provided according to an embodiment of the invention;
fig. 4 is a schematic diagram of an uplink message flow provided according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a downlink message flow provided in an embodiment of 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 do not limit the scope of the invention.
The following detailed description of the principles of the invention is provided in connection with the accompanying drawings.
Example 1
As shown in fig. 1, an embodiment of the present invention provides a distributed fault diagnosis system for a power transmission line, including a monitoring terminal, a front-end server, and a central station server, where the central station server includes a communication micro-service unit, a core micro-service unit, and a fault location micro-service unit;
in the specific application process of the power transmission line distributed fault diagnosis system in the embodiment of the invention, the monitoring terminals are deployed on towers at all places and used for acquiring data such as traveling wave current, fault current traveling wave data, clock data and the like;
as shown in fig. 2-4, the front-end server receives a data message (e.g., a device traveling current data message) sent by a monitoring terminal, and stores the data message in a database, such as an oracle database; in a specific implementation manner of the embodiment of the present invention, the front-end server is in an external network, and receives data of each monitoring terminal;
the communication micro-service unit reads the data message from the database and forms a file; in a specific process of the embodiment of the present invention, the communication microserver unit includes: the device comprises a message access module, a file generation module and a protocol conversion module. The message access module is responsible for maintaining a communication link and taking out unprocessed device communication messages from an uplink message table of an oracle database; and adding the device communication message to be sent to the device into a downlink message table of the oracle database. Updating oracle message records according to the processing results, and storing the processing records of the important messages in the mongodb database; the file generation module is responsible for forming travelling wave file fragments of a plurality of messages into a COMTRADE format file and storing the COMTRADE format file in a file system; the protocol conversion module converts the device communication messages stored according to the bit into JSON service interaction messages, so that the information is easy to process, convenient to send on MQTT and easy to carry out Mongobb storage and WEB interaction, and the processing efficiency of the core module is improved. The communication microservice unit reads data messages from a database and forms files, and the method specifically comprises the following steps: and the communication micro-service unit takes out the traveling wave current data message of the device from the oracle database, starts to store the data segments in the message, replies a successful traveling wave current data response message as a result, accumulates multiple packets of data to finally form a complete file, reads the ID (identity) of the device and the starting time in the message to generate a file name, and stores the file name in a fixed directory. And if the time is out, sending a traveling wave current data response message with a failure result. And deleting the data segments; if the file is successfully formed, the communication micro-service unit sends a protocol 01 fault distance measurement service interaction message to the core micro-service unit, and the core micro-service unit is informed to process the file;
the core micro-service unit receives an interactive message sent by a communication micro-service unit, finds out a corresponding fault location micro-service unit based on ID information in the interactive message, and sends a file acquired from the communication micro-service unit to the fault location micro-service unit; in a specific implementation manner of the embodiment of the present invention, the core micro-service unit includes: the system comprises a protocol transceiving and converting module, a WEB response module and a database management module; the protocol transceiving and converting module and the communication micro-service unit are distributed to other modules through an MQTT protocol according to protocol contents. And if the message is the fault location message, sending the message to the fault location service of the corresponding manufacturer according to the device ID. And the WEB response module is responsible for responding to WEB users, returning data or starting a communication flow. And the database management module is responsible for reading and writing the Mongodb database.
The fault location micro-service unit completes fault diagnosis based on the received file and returns a processing result to the core micro-service unit; the fault location micro-service unit is provided by each manufacturer, is in charge of a fault location algorithm and is only interacted with the core micro-service unit;
the core micro-service unit stores the processing result and sends a service message response containing monitoring data to the communication micro-service;
the communication micro-service unit responds to a response message forming a monitoring data message based on the received service message and stores the response message in a database;
and the front-end server takes out the response message from the database and sends the response message to the monitoring terminal.
In a specific implementation manner in the embodiment of the present invention, the communication micro-service unit, the core micro-service unit, and the fault location micro-service unit are all deployed in a cluster in a container manner, such as a docker container, and provide a standard MQTT interaction interface, and interact with each other through an MQTT communication protocol (i.e., an MQTT message queue), where MQTT is a client-server based message publishing/subscribing transmission protocol, and is more reliable, less expensive, and open and easy to implement than a wide area message bus of a power scheduling data network.
Further, the power transmission line distributed fault diagnosis system further comprises a WEB micro-service unit;
the WEB micro-service unit acquires operation command information according to user operation and sends the operation command information to the core micro-service unit;
the core micro-service unit generates a first service interaction message based on the received operation command information, and forwards the first service interaction message to a communication micro-service unit;
the communication micro-service unit converts the received first service interaction message into a first device communication message which is expressed according to the bit and stores the first device communication message in a database;
the front-end server reads a first device communication message from a database and sends the first device communication message to a corresponding monitoring terminal;
the monitoring terminal responds to the received first device communication message and sends a second device communication message to the front-end server;
the front server stores the received communication message of the second device into a database;
the communication micro-service unit takes out the second device communication message from the database, converts the second device communication message into a second service interaction message and sends the second service interaction message to the core micro-service unit;
the core micro-service unit stores a result of command processing contained in the second service interaction message based on the received second service interaction message, notifies the WEB micro-service unit to update the WEB page by using a trigger event, and displays the result of command processing, which is specifically shown in fig. 5.
In a specific implementation manner of the embodiment of the present invention, the communication microservice unit, the core microservice unit, the fault location microservice unit, and the WEB microservice unit all have a unique uuid for identifying an identity; and the core micro-service unit and the WEB micro-service unit are interacted by adopting an MQTT communication protocol.
In the embodiment of the invention, two types of nodes, namely the interactive node and the fault distance measuring node, coexist. The interactive node is used for interaction between the communication micro-service unit and the core micro-service unit and transmitting service interactive messages. In order to support duplex, two nodes are adopted for uplink and downlink, and the message is processed by using an MQTT message event mechanism, so that the efficiency is high. The quality of message QoS adopted by the interactive node is initially set to be 1, so that the message is prevented from being lost.
Communication/Request node: a message sent by the communication microservice unit to the core microservice unit. Including service messages and working status messages for sending monitoring data.
Communication/Ack node: and the core micro-service unit sends a response message.
Core/Request node: the core micro service unit sends messages to the communication micro service unit, mainly control data messages.
Core/Ack node: and the response message is sent by the communication micro-service unit.
Node name Publisher Subscriber's subscriber Use of
Communication/Request Communication microservice Core microservice Uplink newspaperArticle (Chinese character)
Communication/Request Core microservice Communication microservice Uplink message response
Core/Request Core microservice Communication microservice Downlink message
Core/Ack Communication microservice Core microservice Downlink message acknowledgement
Because the number of the fault distance measuring services provided by the manufacturer is not constant, a property file is provided for each fault distance measuring service, and a unique uuid is allocated for marking the identity. The quality code adopted by all nodes of the fault location node type is initially set to be 2, so that the loss and the repetition of the message are prevented, and each fault location service has 4 nodes belonging to the fault location service:
[ I ] Input/{ uuid }: platform data sent by the core service to the fault location service is mainly current traveling wave message data.
Output/{ uuid }: data sent by the fault location service to the core service is mainly a current traveling wave test result message.
[ solution ]/Request/{ uuid }: and the core service sends a data read-write request to the APP.
[ solution ]/Response/{ uuid }: and the APP responds to the data read-write request to the core service.
Node name Publisher Subscriber's subscriber Use of
/Input/{uuid} Core microservice Fault ranging microservice Ranging data
/Output/{uuid} Fault ranging microservice Core microservice Returning the calculation results
/Request/{uuid} Core microservice Fault ranging microservice Reservation for reading parameters
/Response/{uuid} Communication microservice Core microservice Reservation, read parameter reply
The distributed fault diagnosis system of the power transmission line in the embodiment of the invention adopts a micro-service architecture, the idea is to split a huge single application, and based on the service function or field, the service is separated, namely split into a communication micro-service unit, a core micro-service unit and a fault location micro-service unit. Each service unit is provided with an independent load balancer, a special execution environment and an independent database, and can be easily replaced, upgraded, constructed, modified and expanded through decentralized management and micro-service componentization, and the architecture system can well meet the requirements of fault location terminal access and personalized web service display of various manufacturers. Each manufacturer service packs and releases resources in a docker mirror image mode, and the manufacturer service does not depend on resources and environments of a host machine and communicates with a host machine platform through a message bus, and the loosely-coupled access mode is consistent with the Internet of things APP release mode.
Example 2
The embodiment of the present invention is different from embodiment 1 in that:
a convergence unit and an edge proxy unit which are sequentially connected are arranged between the monitoring terminal and the front server;
the aggregation unit is also connected with the monitoring terminals to realize that the plurality of monitoring terminals are aggregated to the aggregation unit;
the edge proxy unit is also connected with the front-end server to realize protocol conversion and interconnection.
An isolation device is arranged between the fault diagnosis unit and the front-end server, so that physical isolation between the monitoring terminal and a service system (namely a communication micro-service unit, a core micro-service unit and a fault location micro-service unit) is mainly realized, and illegal links are prevented from penetrating through an intranet to access.
Example 2
The embodiment of the invention provides a distributed fault diagnosis method for a power transmission line, which specifically comprises the following steps:
receiving a data message sent by a monitoring terminal by using a front-end server and storing the data message in a database;
reading data messages from a database by using a communication micro-service unit and forming a file;
receiving an interactive message sent by a communication micro-service unit by using a core micro-service unit, finding out a corresponding fault distance measuring micro-service unit based on ID information in the interactive message, and sending a file acquired from the communication micro-service unit to the fault distance measuring micro-service unit;
completing fault diagnosis based on the received file by using a fault location micro-service unit, and returning a processing result to the core micro-service unit by using the fault location micro-service unit;
storing the processing result by using a core micro-service unit, and sending a service message response containing monitoring data to the communication micro-service;
forming a response message of the monitoring data message by using the communication micro-service unit based on the received service message response, and storing the response message into a database;
and taking out the response message from the database by using the front-end server, and sending the response message to the monitoring terminal.
In a specific implementation manner of the embodiment of the present invention, the following is specifically performed:
sending device communication messages (such as fault current messages, traveling wave current messages, heartbeat messages, basic information messages, working condition messages, device fault information messages and command replies of uplink messages) on the monitoring terminal;
after receiving the device communication message according to the bitwise expression, the preposed server stores the device communication message into an uplink message table and a waveform file table of an oracle database, marks the entry as unprocessed and takes out the entry for a communication micro-service unit;
the communication micro-service unit reads unprocessed device communication messages from an uplink message table and a waveform file table of an oracle database;
the communication micro-service unit generates a service interaction message in a JSON format from the device communication message according to the bit expression, and stores the service interaction message to a buffer queue of the communication micro-service unit;
the communication micro-service unit distinguishes whether the service interaction message is a fault current message, if the fault current message is the fault current message, the fault current message is stored into a waveform file, and the message and a waveform path are sent through an MQTT message queue to inform the fault distance measuring micro-service unit to process; and if the message is other message, sending the service interaction message to the core micro service unit for processing.
And the fault distance measurement micro-service unit enters distance measurement calculation according to a waveform file generated by the fault current message sent by the fault distance measurement micro-service unit, and generates a distance measurement result after calculation.
And the fault location micro-service unit sends the location calculation result to the core micro-service unit in a traveling wave location message in a JSON format, and the core micro-service unit stores the location result.
The core micro-service unit processes other message information (heartbeat message, basic information message, working condition message, device fault information message and command reply of uplink message), stores the processing result according to the message content, and updates the database information.
The front-end server automatically generates a reply of the device communication message, and sends the reply to the corresponding monitoring terminal to complete message processing, which is specifically shown in fig. 4.
Further, the method for diagnosing the distributed faults of the power transmission line further comprises the following steps:
acquiring operation command information according to user operation by using a WEB micro-service unit, and sending the operation command information to a core micro-service unit;
generating a first service interaction message based on the received operation command information by using a core micro-service unit, and forwarding the first service interaction message to a communication micro-service unit;
converting the received first service interaction message into a first device communication message which is expressed according to the bit by using a communication micro-service unit, and storing the first device communication message in a database;
reading a first device communication message from a database by using a front-end server, and sending the first device communication message to a corresponding monitoring terminal;
responding the received first device communication message by using the monitoring terminal, and sending a second device communication message to the front-end server;
storing the received communication message of the second device into a database by using the front server;
the communication micro-service unit is used for taking out the second device communication message from the database, converting the second device communication message into a second service interaction message and then sending the second service interaction message to the core micro-service unit;
and the core micro-service unit is used for storing a command processing result contained in the second service interaction message based on the received second service interaction message, informing the WEB micro-service unit to update the WEB page by using a trigger event, and displaying the command processing result.
In a specific implementation manner of the embodiment of the present invention, the following is specifically performed:
a WEB service page of the WEB micro-service unit acquires operation command information according to user operation (such as device resetting, parameter reading, parameter setting, device log calling, self-checking information reading and the like), and establishes a new session with a background;
the core micro-service unit generates a service interaction message in a JSON format according to a command issued by a user, and forwards the service interaction message to the communication micro-service unit by using an MQTT message queue;
the communication micro-service unit receives a service interaction message through the MQTT message queue, records message issuing time and user ID, and is used for judging whether an issued command is overtime or not;
the communication micro-service unit converts the service interaction message in the JSON text format into a device communication message which is expressed by bit and stored in a cache queue;
the communication micro-service unit stores the device communication messages in the cache queue into a downlink message table of an oracle database, marks the device communication messages as unprocessed and takes out the device communication messages by a front-end server;
the preposed server takes out the message from a downlink message table of the oracle database, marks the message as processed and sends the message to a corresponding device.
After receiving the message, the monitoring terminal responds to the message command (resetting, replying parameters, setting parameters, replying device log files, replying self-checking information and the like);
the monitoring terminal sends the device communication message as a reply, and the reply content comprises whether the operation is successful or not;
and the preposed server receives the communication message replied by the monitoring terminal, stores the communication message into an uplink message table of the oracle database, marks the communication message as unprocessed and judges the communication micro-service.
The communication micro-service unit takes out unprocessed device communication message entries from an uplink message table of an oracle database, and marks the message as processed;
and if the communication message replied by the device is not received for a long time, the communication micro-service generates a service interaction message with an overtime operation result and automatically transmits the service interaction message by using the MQTT message queue.
And the core micro-service unit reads the service interaction message information, stores the result of downlink command processing and triggers an event to notify the WEB page to update and display.
And the WEB micro-service unit displays the downlink command result on the man-machine interaction interface, and specifically refers to fig. 5.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. A distributed fault diagnosis system for a power transmission line is characterized in that: the system comprises a monitoring terminal, a front server and a central station server; the central station server comprises a communication micro-service unit, a core micro-service unit and a fault location micro-service unit;
the front server receives the data message sent by the monitoring terminal and stores the data message in a database;
the communication micro-service unit reads the data message from the database and forms a file;
the core micro-service unit receives an interactive message sent by a communication micro-service unit, finds out a corresponding fault location micro-service unit based on ID information in the interactive message, and sends a file acquired from the communication micro-service unit to the fault location micro-service unit;
the fault location micro-service unit completes fault diagnosis based on the received file;
the communication micro-service unit, the core micro-service unit and the fault distance measurement micro-service unit all exist in a container mode and interact with each other through an MQTT communication protocol.
2. The distributed fault diagnosis system for the power transmission line according to claim 1, wherein: the fault distance measurement micro-service unit returns a processing result to the core micro-service unit;
the core micro-service unit stores the processing result and sends a service message response containing monitoring data to the communication micro-service;
the communication micro-service unit responds to a response message forming a monitoring data message based on the received service message and stores the response message in a database;
and the front-end server takes out the response message from the database and sends the response message to the monitoring terminal.
3. The distributed fault diagnosis system for the power transmission line according to claim 1, wherein: the monitoring system comprises a monitoring terminal, a front server and an edge proxy unit, wherein the monitoring terminal is connected with the front server through the edge proxy unit, and the edge proxy unit is connected with the front server.
4. The distributed fault diagnosis system for the power transmission line according to claim 1, wherein: and an isolating device is arranged between the fault distance measurement micro-service unit and the front-end server.
5. The distributed fault diagnosis system for the power transmission line according to claim 1, wherein: the power transmission line distributed fault diagnosis system also comprises a WEB micro-service unit;
the WEB micro-service unit acquires operation command information according to user operation and sends the operation command information to the core micro-service unit;
the core micro-service unit generates a first service interaction message based on the received operation command information, and forwards the first service interaction message to a communication micro-service unit;
the communication micro-service unit converts the received first service interaction message into a first device communication message which is expressed according to the bit and stores the first device communication message in a database;
the front-end server reads a first device communication message from a database and sends the first device communication message to a corresponding monitoring terminal;
the monitoring terminal responds to the received first device communication message and sends a second device communication message to the front-end server;
the front server stores the received communication message of the second device into a database;
the communication micro-service unit takes out the second device communication message from the database, converts the second device communication message into a second service interaction message and sends the second service interaction message to the core micro-service unit;
and the core micro-service unit stores the result of command processing contained in the second service interaction message based on the received second service interaction message, informs the WEB micro-service unit of WEB page updating by using a trigger event, and displays the result of command processing.
6. The distributed fault diagnosis system for the power transmission line according to claim 5, wherein: the communication micro-service unit, the core micro-service unit, the fault location micro-service unit and the WEB micro-service unit are all provided with unique uuid for identifying identities; and the core micro-service unit and the WEB micro-service unit are interacted by adopting an MQTT communication protocol.
7. A distributed fault diagnosis method for a power transmission line is characterized by comprising the following steps:
receiving a data message sent by a monitoring terminal by using a front-end server and storing the data message in a database;
reading data messages from a database by using a communication micro-service unit and forming a file;
receiving an interactive message sent by a communication micro-service unit by using a core micro-service unit, finding out a corresponding fault distance measuring micro-service unit based on ID information in the interactive message, and sending a file acquired from the communication micro-service unit to the fault distance measuring micro-service unit;
completing fault diagnosis based on the received file by using a fault location micro-service unit;
the communication micro-service unit, the core micro-service unit and the fault distance measurement micro-service unit all exist in a container mode and interact with each other through an MQTT communication protocol.
8. The distributed fault diagnosis method for the power transmission line according to claim 7, further comprising:
returning a processing result to the core micro-service unit by using the fault location micro-service unit;
storing the processing result by using a core micro-service unit, and sending a service message response containing monitoring data to the communication micro-service;
forming a response message of the monitoring data message by using the communication micro-service unit based on the received service message response, and storing the response message into a database;
and taking out the response message from the database by using the front-end server, and sending the response message to the monitoring terminal.
9. The distributed fault diagnosis method for the power transmission line according to claim 7, further comprising:
acquiring operation command information according to user operation by using a WEB micro-service unit, and sending the operation command information to a core micro-service unit;
generating a first service interaction message based on the received operation command information by using a core micro-service unit, and forwarding the first service interaction message to a communication micro-service unit;
converting the received first service interaction message into a first device communication message which is expressed according to the bit by using a communication micro-service unit, and storing the first device communication message in a database;
reading a first device communication message from a database by using a front-end server, and sending the first device communication message to a corresponding monitoring terminal;
responding the received first device communication message by using the monitoring terminal, and sending a second device communication message to the front-end server;
storing the received communication message of the second device into a database by using the front server;
the communication micro-service unit is used for taking out the second device communication message from the database, converting the second device communication message into a second service interaction message and then sending the second service interaction message to the core micro-service unit;
and the core micro-service unit is used for storing a command processing result contained in the second service interaction message based on the received second service interaction message, informing the WEB micro-service unit to update the WEB page by using a trigger event, and displaying the command processing result.
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