CN-121546798-B - Heterogeneous power distribution terminal panoramic operation and maintenance portrait management system and method

CN121546798BCN 121546798 BCN121546798 BCN 121546798BCN-121546798-B

Abstract

The invention relates to the technical field of operation and maintenance of power distribution terminals, in particular to a panoramic operation and maintenance portrait management system and method of a heterogeneous power distribution terminal, wherein the system comprises an interface adaptation layer, a protocol analysis layer, a model mapping layer and a panoramic display layer; the interface adaptation layer comprises a multi-mode communication interface module, a feature library construction module and a matching module, wherein the communication interface module is used for setting various communication interfaces to realize electric connection with the power distribution terminal, the feature library construction module is used for constructing a feature library according to different types of the power distribution terminal and default communication parameter combinations of each type, and the matching module is used for carrying out fuzzy matching on the power distribution terminal connected with the communication interface module and the feature library, so that configuration is automatically completed and a communication link is established. The invention solves the problem of 'tool impurity and semantic disorder' caused by manufacturer, model and protocol difference radically, releases operation and maintenance personnel from complex software learning and switching, and greatly improves the working efficiency and accuracy.

Inventors

ZHOU JINFEI
Cao cen
ZHANG ZE
WU XIAONAN
ZHOU HAOCHENG
LUO YONG
FANG CHENG
SU TIANYI

Assignees

国网江苏省电力有限公司南通供电分公司

Dates

Publication Date: 20260505
Application Date: 20260121

Claims (3)

1. A heterogeneous distribution terminal panoramic operation and maintenance image management system is characterized by comprising an interface adaptation layer, a protocol analysis layer, a model mapping layer and a panoramic display layer; The interface adaptation layer comprises a multi-mode communication interface module, a feature library construction module and a matching module, wherein the communication interface module is used for setting a plurality of communication interfaces to realize electric connection with a power distribution terminal, the feature library construction module is used for constructing a feature library according to different types of the power distribution terminal and default communication parameter combinations of each type, and the matching module is used for carrying out fuzzy matching on the power distribution terminal connected with the communication interface module and the feature library, and automatically completing configuration and establishing a communication link; The protocol analysis layer is used for accurately analyzing the standard protocol and the private extension of a manufacturer through layered plug-in design and differential adaptation analysis, so that adaptation with the private protocol of the power distribution terminal is realized, and the original data of the power distribution terminal is obtained; the model mapping layer is used for analyzing the equipment attribute set, the function attribute set and the data attribute set of the original data, and outputting standardized data objects according to the information of the data in the equipment attribute set, the function attribute set or the data attribute set, so that unified interpretation of the data of different factories is realized; The panoramic display layer is used for integrating standardized data objects and generating panoramic operation and maintenance images after display; the protocol parsing layer comprises: the basic analysis module is used for constructing an analysis rule base of a standard frame structure containing a DLT634.5 protocol and a DLT634.5 protocol; the expansion analysis module is used for constructing an analysis rule base of private expansion of a manufacturer based on the DLT634.5 protocol and the DLT634.5 protocol; the protocol acquisition module is used for analyzing and acquiring the DLT634.5 communication protocol and the DLT634.5 communication protocol corresponding to the accessed power distribution terminal, and setting a priority order for analyzing and acquiring the protocol for the data in the protocol; The protocol acquisition module comprises: the 101 protocol communication mode determining unit comprises a master station actively initiates a request, the power distribution terminal passively responds to the initiated request, and a multi-terminal time-sharing multiplexing bus is realized based on a power distribution terminal address domain; the 101 protocol parameter processing unit is used for actively reporting the key parameters when the key parameters are remarkably changed, pushing data to the master station in real time without polling by the master station, otherwise, the master station actively summoning key parameters through timing polling under the normal state without emergency, supplementing the detail parameters which are missed by the sudden reporting, and transmitting data commands only when needed aiming at the non-key parameters by the master station, wherein the power distribution terminal transmits the data after responding; The 104 protocol acquisition unit is used for requesting the power distribution terminal to upload all types of data by sending ASDUs of specific types by the master station through the TCP/IP full duplex characteristic, setting a transmission reason field in response of the power distribution terminal, and uploading the data to the master station in frames; The protocol parsing layer further includes: the protocol compatibility module is used for setting a difference mechanism for distinguishing communication protocol frame structures of different versions; the method is used for adopting a fault-tolerant processing mechanism, so that the DLT634.5 101 protocol is recovered through a retransmission mechanism in the face of abnormal conditions, the DLT634.5 protocol is ensured by a TCP retransmission mechanism, and the abnormal times are recorded; The standard protocol and the private extension of the manufacturer are accurately resolved by utilizing the resolution rule base of the standard frame structure and the resolution rule base of the private extension; The model mapping layer comprises: The equipment module is used for defining a basic attribute set of the accessed power distribution terminal and forming an equipment attribute set of the power distribution terminal; The function module is used for dividing the function unit of the power distribution terminal into a communication unit, a telemetry and telecommand data unit, an alarm event unit, a constant value parameter unit, a control unit, a history file unit, a backup and restore unit and an operation recording unit, wherein each unit is associated with a corresponding equipment module attribute, and a triggering condition and an output interface of the alarm event unit are defined to form a function attribute set; The data module is used for defining an attribute set of the standardized data object based on the standard data object specification to form a standard data attribute set; The conversion module is used for matching the semantic mapping table according to the information of the data after receiving the data corresponding to the equipment attribute set, the function attribute set or the data attribute set based on the constructed semantic mapping table and the conversion rules set in the table, completing data type conversion, numerical scaling and outlier filtering according to the conversion rules in the semantic mapping table, and outputting the standardized data object.
2. The heterogeneous distribution terminal panoramic operation and maintenance image management system according to claim 1, wherein said matching module comprises: The matching unit is used for extracting characteristic fields in response information of the power distribution terminal by sending a power-on query message after the power distribution terminal connected with the communication interface module is accessed, performing fuzzy matching with the characteristic library, and judging the power distribution terminal as a target model if the matching degree exceeds a first set threshold; and the polling unit is used for traversing all communication parameter combinations by adopting a polling mechanism if the target model cannot be judged, sending 3 test messages for each combination, and determining the communication parameter with the response success rate not smaller than the second set threshold value as the optimal communication parameter.
3. The heterogeneous power distribution terminal panoramic operation and maintenance image management method is characterized in that the method is obtained according to the heterogeneous power distribution terminal panoramic operation and maintenance image management system as claimed in claim 1 or 2, and comprises the following steps: The communication interface module is provided with a plurality of communication interfaces to realize electric connection with the power distribution terminal, the feature library construction module constructs a feature library according to different types of the power distribution terminal and default communication parameter combinations of each type, and the matching module carries out fuzzy matching on the power distribution terminal connected with the communication interface module and the feature library to automatically complete configuration and establish a communication link; the protocol analysis layer is used for accurately analyzing the standard protocol and the private extension of a manufacturer through layered plug-in design and differential adaptation analysis, so that adaptation with the private protocol of the power distribution terminal is realized, and the original data of the power distribution terminal is obtained; The model mapping layer analyzes the equipment attribute set, the function attribute set and the data attribute set of the original data, and outputs a standardized data object according to the information of the data in the equipment attribute set, the function attribute set or the data attribute set, so that unified interpretation of data of different factories is realized; And the panoramic display layer integrates the standardized data objects and generates a panoramic operation and maintenance image after display.

Description

Heterogeneous power distribution terminal panoramic operation and maintenance portrait management system and method Technical Field The invention relates to the technical field of operation and maintenance of power distribution terminals, in particular to a panoramic operation and maintenance portrait management system and method for heterogeneous power distribution terminals. Background At present, along with the gradual increase of the number of the power distribution network lines, the installation number of the medium-voltage power distribution terminals is also increased explosively, so that the operation analysis management workload of the power distribution automation terminals is huge. However, at present, the distribution automation terminal has the following difficulties in on-site operation and maintenance and operation analysis, namely (1) the side interfaces of the distribution terminal equipment are not uniform, the configuration of related communication parameters such as serial ports and network ports is different and can not be accessed quickly, (2) the original tools of a distribution terminal manufacturer are too many, and most of the tools are based on Windows development of a PC machine, the morphological functions and operation and maintenance protocols are not uniform, (3) the software functions, design styles, semantic descriptions and the like of different manufacturers are greatly different, the consistency is poor, and the working complexity and the error risk are both great. Therefore, distribution terminals such as FTU, DTU and the like in the existing distribution network relate to multi-manufacturer supply, and have three main technical problems that firstly, terminal communication interfaces are heterogeneous (RS 232/RS 485/Ethernet), communication parameter configuration is complex and compatibility is poor, secondly, the distribution terminals of all manufacturers adopt proprietary communication protocols, so that operation and maintenance tools cannot be used commonly, operation and maintenance cost is increased, thirdly, data semantic description is not uniform, similar parameter naming rules are obvious in difference, and unified interpretation and analysis of data cannot be realized. The prior art only solves the problem of protocol conversion or adaptation framework, for example, the invention patent with publication number of CN113887754A discloses a construction method of a unified operation and maintenance platform of a power distribution terminal, and the communication interface self-adaptive access, the data semantic unification and the overall description of the panoramic operation state of the power distribution terminal of the heterogeneous power distribution terminal are not realized, so that the operation and maintenance efficiency is low, the operation error rate is high, and the training period of new staff is long. Disclosure of Invention The invention aims to overcome the defects in the prior art, and provides a panoramic operation and maintenance image management system of a base heterogeneous distribution terminal. According to the technical scheme provided by the invention, on one hand, a panoramic operation and maintenance portrait management system of a heterogeneous power distribution terminal is provided, and the system comprises an interface adaptation layer, a protocol analysis layer, a model mapping layer and a panoramic display layer; The interface adaptation layer comprises a multi-mode communication interface module, a feature library construction module and a matching module, wherein the communication interface module is used for setting a plurality of communication interfaces to realize electric connection with a power distribution terminal, the feature library construction module is used for constructing a feature library according to different types of the power distribution terminal and default communication parameter combinations of each type, and the matching module is used for carrying out fuzzy matching on the power distribution terminal connected with the communication interface module and the feature library, and automatically completing configuration and establishing a communication link; The protocol analysis layer is used for accurately analyzing the standard protocol and the private extension of a manufacturer through layered plug-in design and differential adaptation analysis, so that adaptation with the private protocol of the power distribution terminal is realized, and the original data of the power distribution terminal is obtained; the model mapping layer is used for analyzing the equipment attribute set, the function attribute set and the data attribute set of the original data, and outputting standardized data objects according to the information of the data in the equipment attribute set, the function attribute set or the data attribute set, so that unified interpretation of the data of different factories is realized;