CN103390035A - Intelligent warning signal type matching method based on regular expressions - Google Patents
Intelligent warning signal type matching method based on regular expressions Download PDFInfo
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- CN103390035A CN103390035A CN2013102954147A CN201310295414A CN103390035A CN 103390035 A CN103390035 A CN 103390035A CN 2013102954147 A CN2013102954147 A CN 2013102954147A CN 201310295414 A CN201310295414 A CN 201310295414A CN 103390035 A CN103390035 A CN 103390035A
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Abstract
The invention discloses an intelligent warning signal type matching method based on regular expressions. In the method, automatic classified match of intelligent warning signals is performed by using regular expressions. The method comprises the following steps: (1) acquiring a warning signal name through monitoring systems such as SCADA (Supervisory Control And Data Acquisition); (2) predefining a regular expression library; (3) opening a database, and reading description fields of a protection signal table one by one; (4) acquiring regular expressions subjected to classified match; (5) calling a DFA (Design For Analysis) engine, and performing name searching and matching on the input warning signal name via the NFA regular expression engine; (6) outputting the type of a successfully-matched signal; and (7) outputting other types for signals fail in matching according to an estimate rule. The method has the advantages of 1, automatic matching; 2, accurate matching; 3, easiness in maintaining, convenience in modifying and no need of changing programs; 4, rapid matching and high instantaneity; and 5, high reusability.
Description
Technical field
The present invention relates to Power System Intelligent alarm field, adopt the matching regular expressions technology to complete the Auto-matching classification of electrical network alarm signal, the Intelligent treatment that is conducive to the electrical network alarm event, belong to Automation of Electric Systems alarm signal intelligent processing method technical field.
Background technology
During the last ten years, along with the high speed development of China's economic and country continue the extensive investment of two five-year plans to electrical network, electric system has obtained development at a high speed, the electrical network increase in size is rapid, the power automation technology also is greatly improved.Along with the rapid growth of electric system, the electrical network scale is doubled and redoubled, and the electrical network first-line staff comprises that pressure and labour intensity that the yardman faces also constantly increase.A power system monitor center, the SCADA alarm record that produce every day may reach thousands of.These warning information are all the signals that isolates one by one, and major part is all general item or the normal operations journal entry of informing.The person on duty of Surveillance center every day is in the face of these magnanimity and rambling signal, fault that complete self-dependent professional knowledge and practical work experience find rapidly that therefrom electrical network occurs and abnormal, and its workload and working pressure are very large.
Under this background, development along with computer technology, and the improving constantly of power dispatching automation level, rely on the power monitoring advanced applied software of the power exploitation of computing machine constantly to be pushed out, just comprise that wherein the auxiliary person on duty such as the technology of utilizing artificial intelligence completes the intelligent software of some policy-making work.State Grid Corporation of China has also released construction requirements and the standard of intelligent substation intelligent warning system.Everything all impels a kind of scientific, intelligentized analytical approach that can realize Surveillance center's alarm signal on the SCADA system-based of power system automatic field exploratory development.
Yardman's pressure and labour intensity can greatly be alleviated and alleviate to intelligent warning system, has been subject to great attention.The prerequisite of alarming processing is various signals to be carried out classification, the classification of scientific and precise.In reality, may just there be several thousand guard signals and dummy switch information in a transformer station; and the warning message name is often lack of standardization; different plant stands do not have unified standards and norms to the name of warning message, even the set monitor message of the equipment of same type, same model also may be different.If artificial signalization type, workload is very large.And due to individual difference, leakage is put, is misplaced phenomenon and is difficult to avoid.And if the type of unprotect signal will realize the intellectual analysis of fault and the normal difficulty that judges between right and wrong.Therefore, need a kind of signal type that guard signal can automatic accurately be set, for realizing intellectual analysis and logical process, carry out the method that data are prepared.
The present invention by based in regular expression/English matching process, utilize the predefined expression formula coupling storehouse of safeguarding, realize the automatic classification of operation of power networks signal, for intelligent warning system provides technical foundation.
Regular expression is a kind of match pattern, description be the feature of character string, be abstract to the height of character; Use exactly one " character string " to describe a feature, go to verify whether another " character string " meets this feature.This is a kind of strong instrument that can be used for pattern match and replacement.Regular expression is through the development in several periods, and present standard is assert by ISO (International Standards Organization) approval with by Open Group tissue.
The present invention, with numerous and diverse uninteresting signal manual sort setting operation, is reduced to accurately computing machine efficiently and automatically processes, and matching result is accurate, is difficult for makeing mistakes, and program realizes simple, does not relate to complicated algorithm, and expression formula is safeguarded intuitive and convenient.
Summary of the invention
The present invention aims to provide a kind of simple and practical, reliability is high, computer software is realized electrical network intelligent alarm signal sorting technique, for the intelligent warning system of Automation of Electric Systems provides reliable signal screening foundation.
Take into full account the alarm signal name characteristics of grid monitoring system based on the intelligent alarm signal type matching process of regular expression, it is carried out inducing classification meticulously, sum up expression formula corresponding to all kinds of unlike signals, form the expression formula storehouse.Matching engine takes full advantage of the ability in feature extraction of regular expression to text strings, searches matched signal in the signal name of magnanimity, exact classification.The expression formula storehouse can constantly be checked, be revised in utilization.
A kind of signal type of intelligent alarm based on regular expression matching process, the present invention utilizes regular expression to carry out the automatic classification coupling of intelligent alarm signal, comprises the following steps:
(1) obtain the alarm signal title by supervisory systems such as SCADA;
(2) predefine regular expression storehouse;
(3) open database, read in one by one the description field of guard signal table;
(4) obtain the regular expression of classification and matching;
(5) call the DFA engine, by NFA regular expression engine, the alarm signal title of input is carried out title search coupling;
(6) signal that mates for success, export its affiliated type;
(7) signal that it fails to match, press budget rules, the output other types.
The present invention safeguards a regular expression storehouse that adapts to the irregular disunity phenomenon of electric system alarm signal name.
The present invention utilize the regular expression engine suitable/backward the function such as looks around and precisely mates.
The present invention has the following advantages: 1, Auto-matching, with the system maintenance personnel from numerous and diverse manually arranging type of work and free.2, coupling accurately, high conformity, order, the backward that can take full advantage of the regular expression engine function such as looked around and strictly mated, while having avoided the human configuration classification, because the issuable standard of participant's individual difference result inconsistent, that cognitive dissonance brings is inconsistent.3, adopt the standard regular expression, safeguard simply, it is convenient to revise, and need not change program itself.4, quick real-time is good rapidly for coupling, and its performance is to mating and all can be competent in the coupling in advance of signal type, thing.5, reusability is good, can take full advantage of electric system expert's historical experience.Can use in different system for certified matching rule base, avoid a large amount of artificial duplication of labour.
Description of drawings
Fig. 1 is the Signal Matching algorithm flow chart of the embodiment of the present invention;
Fig. 2 is the information flow chart of the embodiment of the present invention.
Embodiment
See Fig. 1, Fig. 2, a kind of signal type of intelligent alarm based on regular expression matching process, the present invention utilizes regular expression to carry out the automatic classification coupling of intelligent alarm signal, comprises the following steps:
(1) obtain the alarm signal title by supervisory systems such as SCADA;
(2) predefine regular expression storehouse;
(3) open database, read in one by one the description field of guard signal table;
(4) obtain the regular expression of classification and matching;
(5) call the DFA engine, by NFA regular expression engine, the alarm signal title of input is carried out title search coupling;
(6) signal that mates for success, export its affiliated type;
(7) signal that it fails to match, press budget rules, the output other types.
Claims (1)
1. the signal type of the intelligent alarm based on regular expression matching process is characterized in that: utilize regular expression to carry out the automatic classification coupling of intelligent alarm signal, comprise the following steps:
(1) obtain the alarm signal title by supervisory systems such as SCADA;
(2) predefine regular expression storehouse;
(3) open database, read in one by one the description field of guard signal table;
(4) obtain the regular expression of classification and matching;
(5) call the DFA engine, by NFA regular expression engine, the alarm signal title of input is carried out title search coupling;
(6) signal that mates for success, export its affiliated type;
(7) signal that it fails to match, press budget rules, the output other types.
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| CN2013102954147A CN103390035A (en) | 2013-07-15 | 2013-07-15 | Intelligent warning signal type matching method based on regular expressions |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104182531A (en) * | 2014-08-28 | 2014-12-03 | 广州金山网络科技有限公司 | Video name processing method and system |
| CN104218676A (en) * | 2014-09-02 | 2014-12-17 | 广东电网公司茂名供电局 | Intelligent warning system and method for power dispatching automation master station |
| CN109783568A (en) * | 2018-12-29 | 2019-05-21 | 咪咕文化科技有限公司 | A kind of generation method of network topological diagram, device and storage medium |
| CN110825926A (en) * | 2019-11-22 | 2020-02-21 | 深圳供电局有限公司 | Analysis method and system for automatically monitoring abnormal signals of power grid |
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| US5924052A (en) * | 1994-08-12 | 1999-07-13 | Siemens Aktiengesellschaft | Method for detecting signals by means of fuzzy-logic classification |
| CN101094490A (en) * | 2007-08-02 | 2007-12-26 | 华为技术有限公司 | Alarm treatment device and method |
| CN102684306A (en) * | 2012-05-17 | 2012-09-19 | 云南电力试验研究院（集团）有限公司电力研究院 | Method for intelligent operation of transformer substation |
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2013
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| US5924052A (en) * | 1994-08-12 | 1999-07-13 | Siemens Aktiengesellschaft | Method for detecting signals by means of fuzzy-logic classification |
| CN101094490A (en) * | 2007-08-02 | 2007-12-26 | 华为技术有限公司 | Alarm treatment device and method |
| CN102684306A (en) * | 2012-05-17 | 2012-09-19 | 云南电力试验研究院（集团）有限公司电力研究院 | Method for intelligent operation of transformer substation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104182531A (en) * | 2014-08-28 | 2014-12-03 | 广州金山网络科技有限公司 | Video name processing method and system |
| CN104218676A (en) * | 2014-09-02 | 2014-12-17 | 广东电网公司茂名供电局 | Intelligent warning system and method for power dispatching automation master station |
| CN104218676B (en) * | 2014-09-02 | 2015-11-18 | 广东电网有限责任公司茂名供电局 | The intelligent warning system of power dispatching automation main website and method |
| CN109783568A (en) * | 2018-12-29 | 2019-05-21 | 咪咕文化科技有限公司 | A kind of generation method of network topological diagram, device and storage medium |
| CN110825926A (en) * | 2019-11-22 | 2020-02-21 | 深圳供电局有限公司 | Analysis method and system for automatically monitoring abnormal signals of power grid |
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