A remote point meter maintenance method based on terminal debugging device

Abstract

The present invention discloses a remote point table maintenance method based on a terminal debugging device. Based on the existing communication channel of the power distribution terminal, the terminal is matched with the equipment to be collected through the terminal debugging device, and after the point table is selected and matched through the terminal debugging device according to the predefined interaction standard, a point table import message is generated and sent to the main station system through the network protocol and the cross-zone message bus. After the main station system receives the message, it completes the import of the point table according to the content of the message, and feeds back the import result to the terminal debugging device. Through the above process, the present invention can achieve the power distribution terminal to be installed, debugged, modified, and used at any time, and multiple people can operate and configure it in parallel at the same time. The original need for the participation and cooperation of the main station operation and maintenance personnel has been replaced by the terminal operation and maintenance personnel independently completing the whole process debugging through the terminal debugging device.

Description

Technical Field

[0001] The invention discloses a remote point table maintenance method based on a terminal debugging device, and relates to the field of distribution network terminal point table import. Background Art

[0002] After the distribution network equipment is deployed on site, the collected equipment measurement signals need to be uploaded to the main station through the terminal. The main station can detect the operating status of the distribution network in real time, and can perform fault analysis and line operation status prediction by statistically analyzing the collected signals and data. After the terminal completes the point table maintenance, the point number information is stored in the main station database, and the data of the front-end collection equipment is uploaded to the main station through the message. After parsing, the measurement data of the corresponding equipment in the main station is updated according to the point number information.

[0003] The power grid company installs more than 10,000 sets of DTU, FTU, fault indicators and complete equipment every year, with more than ten suppliers. The configuration of distribution automation debugging equipment of municipal and county companies is uneven, and some equipment is even directly connected to the grid without debugging. There are a large number of unreasonable settings of protection setting parameters, equipment does not support remote parameter modification, frequent missed false alarms, refusal to operate, etc., which seriously affect the practical application of distribution automation.

[0004] At present, the debugging work of distribution automation terminal access mainly relies on the main station operation and maintenance personnel to import the point table of the terminal to be debugged in advance. After the import is completed, the subsequent terminal debugging process is carried out manually or by debugging devices. This method leads to low efficiency, dependence on the cooperation of the main station operation and maintenance personnel, and the inability to deal with problems in the first place. Summary of the invention

[0005] In view of the defects in the above-mentioned background technology, the present invention provides a remote point meter maintenance method based on a terminal debugging device, which can achieve the installation, debugging, modification and use of the distribution terminal at any time.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows: a remote point table maintenance method based on a terminal debugging device, characterized in that it includes the following steps:

[0007] The terminal debugging device queries the main station through the communication channel for the current point table information of the terminal to be maintained in the operation and maintenance area; the main station encapsulates the point table information in a predefined XML format to form interactive message data.

[0008] If the data in the message returned by the master station is empty, a new point table information of the terminal to be operated and maintained is created and sent to the master station for storage;

[0009] If the message data returned by the master station is not empty, the difference is compared between the returned current point table information and the terminal standard point table information template;

[0010] If there is no difference in the comparison, the operation and maintenance ends;

[0011] If there are differences in the comparison, the terminal debugging device sends the message data of the adjustment content of the current point table information to the main station according to the terminal standard point table information template. The main station automatically imports the point table according to the adjustment content in the message data and returns the import result to the terminal debugging device.

[0012] Furthermore, the point table information is: the point number information describing the terminal and the mapping association information of each attribute domain of the device it collects, which is used to connect the information of the field terminal device to the database of the main station. The description of the point number information is: the Chinese / English description of each point number of the terminal, which is unique and identifiable.

[0013] Furthermore, creating new point table information of the terminal to be operated and maintained and sending it to the master station for storage specifically includes the following steps:

[0014] (1) Select the point number information required for the current terminal in the terminal debugging device according to the terminal standard point table template, and send it to the master station through message data;

[0015] The terminal standard point table template includes: point number information that should be configured for the terminals to be operated and maintained in the operation and maintenance area;

[0016] (2) After receiving the terminal message data, the master station combines the primary device identification and starts to maintain the master station front-end related data and saves it in the front-end database. After successful saving, it returns the import result to the terminal debugging device.

[0017] Furthermore, the message data uses the Xml format, and the format standard adopts the "GB / T 36438-2018" specification. The message content is created according to the point table information configured by the terminal debugging device. The message content includes: terminal description, terminal IP, terminal address, terminal type, primary device unique identifier, and point number information.

[0018] Further, the communication channel includes: a public network message processing service end and a four-zone message forwarding service;

[0019] The public network message processing server specifically includes: a public network machine WebSocket server, a public network machine TCP client, and a public network machine TCP server:

[0020] The terminal debugging device directly accesses the public network machine WebSocket server through the Internet and submits the message data to be interacted. After receiving the message data, the public network machine WebSocket server sends it to the main station four-zone system TCP server through the public network machine TCP client through the firewall, and creates a TCP server on the public network server to receive the message message sent back to the public network by the DMS four-zone through the forward isolation device, and forwards the received message message to the terminal debugging device through the WebSocket service;

[0021] The four-zone message forwarding service specifically includes: a cross-zone message bus interaction module, a message sending TCP client processing module, and a message receiving TCP server processing module;

[0022] The message receiving TCP server processing module processes the message data sent by the received public network message processing server and forwards it to the cross-zone message bus interaction module. After receiving the message, the cross-zone message bus interaction module forwards the message to DMS Zone 1 through the cross-zone service bus, and monitors the message returned by DMS Zone 1 in the cross-zone message bus in real time. After receiving the returned message, it sends the message data to the server of the public network machine through the message sending TCP client processing module.

[0023] Furthermore, the automatic import of the point table specifically includes the following steps: after the DMS zone 1 point table operation and maintenance service receives the point table message data, it creates an independent thread to process the message data, first parses the message data within the thread to obtain the point table information, and classifies the point number descriptions therein according to the corresponding comparison table based on the obtained point table information, and obtains the point table information of the primary equipment of the master station based on the primary equipment standard associated with the point table information in the message, and then completes the automatic maintenance of the equipment's point table after performing a difference comparison and analysis on the point table information, and after the maintenance is completed, the maintenance results are fed back to the terminal debugging device.

[0024] Beneficial effect: The present invention changes the original processing mode that requires the participation and cooperation of the main station operation and maintenance personnel. The terminal operation and maintenance personnel can independently complete the whole process debugging through the terminal debugging device, so that the distribution terminal can be installed, debugged, modified and used at any time, and multiple people can operate and configure in parallel at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the interactive principle diagram of the present invention;.

[0026] Figure 2 Schematic diagram of the communication channel of the present invention. DETAILED DESCRIPTION

[0027] The implementation of the technical solution is further described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0028] Explanation of relevant terms

[0029] FTU: Feeder terminal unit, a switch monitoring device installed next to the feeder switch. These feeder switches refer to outdoor pole switches, such as circuit breakers, load switches, and section switches on 10kV lines.

[0030] DTU: Switchgear terminal equipment, generally installed in conventional switchgear (stations), outdoor small switchgear, ring network cabinets, small substations, box-type substations, etc., completes the collection and calculation of the position signal, voltage, current, active power, reactive power, power factor, electric energy and other data of the switchgear, performs opening and closing operations on the switches, realizes fault identification and isolation of the feeder switches, and restores power supply to the non-fault section.

[0031] TTU: Distribution transformer terminal equipment, monitors and records the operating conditions of distribution transformers, calculates based on the three-phase voltage and current sampling values ​​on the low-voltage side, and saves them in the non-volatile memory of the device. The distribution network master station reads TTU measurement values ​​and historical records regularly through the communication system

[0032] In this application: D5000ID: is an internal unique number generated based on the D5000 platform within the distribution network automation master station system. The number is a long value. After the external system identifier enters the system, it will be uniformly assigned a unique D5000ID and bound one-to-one with the external system identifier.

[0033] Terminal debugging device: Applicable to different power distribution terminal equipment. After the device is connected to the wireless network, it requests the debugging task list downloaded by the master station through the network channel, and simulates each analog quantity item by item, and the master station cooperates to complete the verification of various functions of the terminal. It mainly includes: point table import, download task, time synchronization function joint debugging, telemetry joint debugging, remote signal joint debugging, remote control joint debugging, remote setting download and call function joint debugging, protection function joint debugging, fault recording file call function joint debugging, file transfer function joint debugging.

[0034] like Figure 1 An embodiment shown: a remote point table maintenance method based on a terminal debugging device, comprising the following steps:

[0035] The terminal debugging device queries the main station through the communication channel for the current point table information of the terminal to be maintained in the operation and maintenance area; the main station encapsulates the point table information in a predefined XML format to form interactive message data.

[0036] If the data in the message returned by the master station is empty, a new point table information of the terminal to be operated and maintained is created and sent to the master station for storage;

[0037] If the message data returned by the master station is not empty, the difference is compared between the returned current point table information and the terminal standard point table information template;

[0038] If there is no difference in the comparison, the operation and maintenance ends;

[0039] If there are differences in the comparison, the terminal debugging device sends the message data of the adjustment content of the current point table information to the main station according to the terminal standard point table information template. The main station automatically imports the point table according to the adjustment content in the message data and returns the import result to the terminal debugging device.

[0040] The point table information is: the mapping and association information between the point number information of the terminal and the attribute domains of the primary equipment it collects, which is used to connect the information of the field terminal equipment to the database of the main station. The description of the point number information is: the Chinese / English description of each point number of the terminal, which is unique and identifiable; the point table information comes from a pre-prepared comparison relationship (point table identification standard message comparison table), as shown in Table 1 below.

[0041]

[0042]

[0043] Table 1: Point table identification standard message comparison table

[0044] Create new point table information for the terminal to be operated and maintained, and send it to the master station for storage. The specific steps include:

[0045] (1) Select the point number information required for the current terminal in the terminal debugging device according to the terminal standard point table template, and send it to the master station through message data;

[0046] The terminal standard point table template includes: point number information that should be configured for the terminals to be operated and maintained in the operation and maintenance area;

[0047] (2) After receiving the terminal message data, the master station combines the primary device identification and starts to maintain the master station front-end related data and saves it in the front-end database. After successful saving, it returns the import result to the terminal debugging device.

[0048] The message data is in Xml format, and the format standard adopts the "GB / T 36438-2018" specification. The message content is created according to the point table information configured by the terminal debugging device. The message content includes: terminal description, terminal IP, terminal address, terminal type, primary device unique identifier, and point number information.

[0049] like Figure 2As shown, the communication channel includes: a public network message processing service end and a four-zone message forwarding service;

[0050] The public network message processing server specifically includes: a public network machine WebSocket server, a public network machine TCP client, and a public network machine TCP server:

[0051] The terminal debugging device directly accesses the public network machine WebSocket server through the Internet and submits the message data to be interacted. After receiving the message data, the public network machine WebSocket server sends it to the main station four-zone system TCP server through the public network machine TCP client through the firewall, and creates a TCP server on the public network server to receive the message message sent back to the public network by the DMS four-zone through the forward isolation device, and forwards the received message message to the terminal debugging device through the WebSocket service;

[0052] The four-zone message forwarding service specifically includes: a cross-zone message bus interaction module, a message sending TCP client processing module, and a message receiving TCP server processing module;

[0053] The message receiving TCP server processing module processes the message data sent by the received public network message processing server and forwards it to the cross-zone message bus interaction module. After receiving the message, the cross-zone message bus interaction module forwards the message to DMS Zone 1 through the cross-zone service bus, and monitors the message returned by DMS Zone 1 in the cross-zone message bus in real time. After receiving the returned message, it sends the message data to the server of the public network machine through the message sending TCP client processing module.

[0054] The automatic import of the point table specifically includes the following steps: after the DMS zone 1 point table operation and maintenance service receives the point table message data, it creates an independent thread to process the message data. The thread first parses the message data to obtain the point table information, and classifies the point number descriptions therein according to the corresponding comparison table based on the obtained point table information. According to the primary equipment standard associated with the point table information in the message, the point table information of the primary equipment of the master station is obtained, and then the point table information is compared and analyzed for differences to complete the automatic maintenance of the equipment's point table. After the maintenance is completed, the maintenance results are fed back to the terminal debugging device.

[0055] The automatic import of the point table includes: import of telemetry and telesignaling point numbers, import of protection point numbers and import of remote control point numbers, as shown in Table 2 below;

[0056] Import of telemetry and telesignaling point numbers: parse and obtain the terminal acquisition equipment identification and point number description information, then search the keyword mapping table (the basic equipment table in the master station, which contains the correspondence between the equipment identification and equipment type, and the equipment D5000ID) through the equipment identification to obtain the equipment type (circuit breaker, knife switch, busbar...) and D5000ID, and search the "point table import equipment telemetry, telemetry comparison table" through the point number identification and equipment type to obtain the domain number of telemetry and telesignaling, and then convert the D5000ID into the corresponding telemetry and telesignaling measurement ID, and save it in the relevant table of the front end for the front end to collect and convert data.

[0057] Import of protection point number: parse and obtain the terminal acquisition device identification and point number description information, then search the keyword mapping table through the device identification to obtain D5000ID, match the protection type in the menu definition table according to the point number description, and directly create the protection signal record and telesignaling table record of the acquisition device in the master station protection signal table.

[0058] Import of remote control point number: parse and obtain the terminal acquisition device identification and point number description information, then search the keyword mapping table through the device identification to obtain D5000ID, and create the remote control parameter data of the acquisition device directly in the master station remote control parameter table according to the point number description.

[0059]

[0060] Table 2: Point table import equipment telemetry and telesignal comparison table

[0061] The present invention is mainly based on the debugging of the existing communication channel of the distribution terminal, matches the terminal with the primary equipment to be collected through the terminal debugging device, and completes the selection of the point table through the interface tool of the terminal debugging device according to the pre-defined interaction standard, generates a point table import message, and sends it to the main station system through the network protocol and the cross-zone message bus. After the main station system receives it, it completes the import of the point table according to the content of the message, and feeds back the import result to the terminal debugging device.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A remote point meter maintenance method based on a terminal debugging device, characterized in that: The following steps are involved: The terminal debugging device queries the main station through the communication channel for the current point table information of the terminal to be maintained in the operation and maintenance area; the main station encapsulates the point table information in a predefined XML format to form interactive message data. If the data in the message returned by the master station is empty, a new point table information of the terminal to be operated and maintained is created and sent to the master station for storage; If the message data returned by the master station is not empty, the difference is compared between the returned current point table information and the terminal standard point table information template; If there is no difference in the comparison, the operation and maintenance ends; If there is a difference in the comparison, the terminal debugging device sends the message data of the adjustment content of the current point table information to the main station according to the terminal standard point table information template. The main station automatically imports the point table according to the adjustment content in the message data and returns the import result to the terminal debugging device. Point table information is: describing the mapping and association information between the terminal's point number information and the attribute fields of its primary collection equipment, which is used to access the information of the field terminal equipment to the database of the master station. The description of the point number information is: the Chinese / English description of each point number of the terminal, Create new point table information for the terminal to be operated and maintained, and send it to the master station for storage. The specific steps include: (1) Select the point number information required for the current terminal in the terminal debugging device according to the terminal standard point table template, and send it to the master station through message data; The terminal standard point table template includes: point number information that should be configured for the terminals to be operated and maintained in the operation and maintenance area; (2) After receiving the terminal message data, the master station combines the primary device identification and starts to maintain the master station front-end related data and saves it in the front-end database. After successful saving, it returns the import result to the terminal debugging device. The message data uses the Xml format, and the format standard adopts the "GB∕T 36438-2018" specification. The message content is created according to the point table information configured by the terminal debugging device. The message content includes: terminal description, terminal IP, terminal address, terminal type, primary device unique identification, point number information, The communication channel includes: a public network message processing service end and a four-zone message forwarding service; The public network message processing server specifically includes: a public network machine WebSocket server, a public network machine TCP client, and a public network machine TCP server: The terminal debugging device directly accesses the public network machine WebSocket server through the Internet and submits the message data to be interacted. After receiving the message data, the public network machine WebSocket server sends it to the main station four-zone system TCP server through the public network machine TCP client through the firewall, and creates a TCP server on the public network server to receive the message message sent back to the public network by the DMS four-zone through the forward isolation device, and forwards the received message message to the terminal debugging device through the WebSocket service; The four-zone message forwarding service specifically includes: a cross-zone message bus interaction module, a message sending TCP client processing module, and a message receiving TCP server processing module; The message receiving TCP server processing module processes the message data sent by the received public network message server and forwards it to the cross-zone message bus interaction module. After receiving the message, the cross-zone message bus interaction module forwards the message to DMS zone 1 through the cross-zone service bus, and monitors the message returned by DMS zone 1 in the cross-zone message bus in real time. After receiving the returned message, it sends the message data to the server of the public network machine through the message sending TCP client processing module. The automatic import of the point table specifically includes the following steps: after the DMS zone 1 point table operation and maintenance service receives the point table message data, it creates an independent thread to process the message data. The thread first parses the message data to obtain the point table information, and classifies the point number descriptions therein according to the corresponding comparison table based on the obtained point table information. According to the primary equipment standard associated with the point table information in the message data, the point table information of the primary equipment of the master station is obtained, and then the point table information is compared and analyzed for differences to complete the automatic maintenance of the equipment's point table. After the maintenance is completed, the maintenance results are fed back to the terminal debugging device.

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