CN101945009A - Positioning method and device of power communication network fault based on case and pattern matching - Google Patents
Positioning method and device of power communication network fault based on case and pattern matching Download PDFInfo
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Abstract
The invention discloses a positioning method of a power communication network fault based on case and pattern matching, comprising the following steps of: analyzing traditional error case data; and extracting a combined mode based on an error-alarming event tree and a code directory pattern for fault positioning so as to realize quick positioning from massive alarming to the fault and improve correctness and efficiency of processing of the fault positioning. With realization of quick fault positioning, proposing of fault handling measurements, recording of fault processing processes and formation of fault processing auxiliary reports, the invention shortens the decision time for processing the fault and promoting fault analysis of the power communication network and intelligence level of processing.
Description
Technical field
The present invention relates to the Fault Locating Method in power telecom network field, particularly relate to power communication network fault positioning method and system based on pattern and case.
Background technology
In the operational system of power communication, the alarm that equipment produces is varied, and alarm is the external manifestation of fault, has characteristics such as transitivity and many sides statement.Each the equipment vendors' definition and the agreement form similarities and differences that adopt, the alarm that causes performance also respectively has difference, and a kind of often bug list reveals multiple alarm form.Fault is a reason, and alarm is result and phenomenon.Alarm is may observe and easily obtains, but fault often is overshadowed in the behind of a large amount of alarm informations.
Existing power telecom network technology support system development obviously lags behind.It is low that it is embodied in system's location level, function is simple, resource is discrete, generally rest on colleting alarming signals and concentrated monitoring level, fault location and processing are substantially based on personnel's experience, can't in a large amount of alarm events, fast, accurately analyze and determine abort situation, fault root reason, influence the real-time and the accuracy of fault location.
Summary of the invention
At the deficiencies in the prior art, the present invention analyzes existing fault case data, extract integrated mode based on fault-alarm event tree and code book model in order to fault location, thereby realization the accuracy and the efficient of the processing of fault location have been improved from a large amount of quick location of alarming fault.
Method step of the present invention specifically comprises:
The first step: with unified form to the alarm data of the external communication network format conversion of standardizing;
Second step: the mode with expert's typing or statistics fault case forms the troubleshooting case database;
The 3rd step: analyze existing fault case, summarize match patterns such as fault-alarm event tree and code book;
The 4th step: in conjunction with case and pattern information, operation troubles positioning analysis engine modules is carried out fault location.
Another object of the present invention is: the power telecom network fault locator of a cover based on pattern and case is provided, its content comprises the processor that is used for the fault locating analysis computing, be used for memory of data such as inventory analysis engine modules program, pattern, case, the display unit that is used to report the result, be used for the mouse of case and pattern typing and keyboard etc., its characteristics are also to comprise:
(1) troubleshooting case database: in order to the fault case information that produces in storage expert input and the running and the database of formation, content must comprise information such as warning information, failure cause and processing method;
(2) fault location pattern database: analyze existing fault case, extract the key message that fault location is handled, form database from the pattern matching of alarming fault based on fault-alarm event tree and code book method mode;
(3) fault locating analysis engine modules: with reference to the content of existing case information database, and the reference pattern database mates alarm and fault this module when carrying out, and realizes from alarming failure location, and exports the result of fault location;
Description of drawings
Fig. 1 alarm root cause trouble navigation system schematic diagram;
Fig. 2 fault locating analysis engine apparatus schematic diagram;
Fig. 3 fault-alarm event tree data model figure;
Fig. 4 fault-alarm event tree deduction pattern is set up flow chart;
Fig. 5 P-S (the corresponding alarm of fault) incidence relation figure;
The process chart of Fig. 6 fault locating analysis engine.
Embodiment
The concrete implementation content of system of the present invention is as follows:
1, a cover is based on the power telecom network fault locator of pattern and case
Fig. 1, Fig. 2 have described the design of this fault locator:
(1) is used for the processor of fault locating analysis computing, specifically carries out the format conversion of warning information, input, analysis and the storage of fault case and the positioning analysis of analysis engine module are calculated;
(2) be used for memory of data such as storing analytical program therefor, pattern, case, inventory analysis engine modules routine data, fault case data, fault location match pattern data and fault location result data;
(3) be used for the interface that is connected with communication network, connect various types of communication network and relevant network management system, and therefrom obtain related data information such as alarm;
(4) be used to display unit, mouse and the keyboard etc. that show and import, receive user's input, comprise case tissue, pattern tissue etc. operation, and show the result of fault location for the user;
(5) troubleshooting case database: in order to the fault case information that produces in storage expert input and the running and the database of formation, content must comprise information such as warning information, failure cause and processing method;
(6) fault location pattern database: analyze existing fault case, extract the key message that fault location is handled, form database from the pattern matching of alarming fault based on fault-alarm event tree and code book method mode;
(7) fault locating analysis engine modules: this module is its main operational module, the content of the existing case information database of reference when carrying out, and the reference pattern database mates alarm and fault, realizes from alarming failure location, and exports the result of fault location;
2, the method and the detailed step that are used for the powerline network fault location
(1) first step: with unified form to the alarm data of the external communication network format conversion of standardizing
For realizing that external data systems need provide the data message that meets following requirement interface to the reading and storing of alarm data, this step is by obtaining data such as alarm with lower interface:
1) input resource object ID obtains the homogeneous object information etc. in higher level's resource object, the same network element;
2) input resource object ID obtains current its warning information;
3) input resource object ID obtains its current state (as stand by lamp) information;
4) one group of resource object ID of input obtains common light path (circuit) routing diagram;
5) import light () road, obtain website, equipment, the operation maintenance unit information of both sides;
6) obtain professional user profile;
7) from the warning information of an input, can clearly obtain: the resource object ID that alarm directly takes place;
8) can be with the unique alarm of determining one type of the attribute of one or one group warning information;
9) about producer's alarm type definition.Requirement is divided type with unified standard;
10) should embody producer's information, producer's unit type information in the warning information.
By the translation function of this step, the standardization warning information content after the conversion is:
(2) second steps: the mode with expert's typing or statistics fault case forms the troubleshooting case database
Fault and alarm tend to repeat take place in the communication network, the entire process process forms a set of fault case before and after the fault that takes place, potential certain rules in the fault case, these rules can form certain match pattern (seeing for the 3rd step) by the appropriate mode abstracting method.In addition, exist its presentation situation often similar or identical in the middle of these fault cases, for these faults and alarm type with essence, when this takes place again, can use the processing case of existence to handle fully, and need not to carry out the analysis of repetition, reach the effect of getting twice the result with half the effort.
1, the structure of case library and characteristics
Case library comprises sample case and historical case two big classes in terms of content.
(1), sample case
For the processing experience and the flow process of typical fault, form sample after can refining by analysis expert in advance and be entered in the middle of the system.As the actual treatment flow process of analyzing common device faults such as transmission, optical cable, exchange is sampling, and is entered in the system by the case maintenance tool.Specific on certain concrete device object and only characterize fault and the incidence relation of alarm on resource, case does not have certain exemplary role to the sample case of this class.
(2), historical case
In the communication network actual moving process, exist common case, the user is by the information of interface norm traffic control personnel to the fault location process, as fault lead to a phenomenon, reason, processing method and treatment step etc., can make the fault case storehouse of a cover science, standard.
Common powerline network fault case category class branch comprises following several:
(3), the characteristics of two kinds of cases and conversion mutually
Sample case and the difference of historical case are, do not have concrete device object in the sample case, only describe fault, alarm and resources relationship; Historical case has then write down certain once concrete troubleshooting case, exists concrete device object.The sample case can form concrete historical case after having carried out concrete utilization; And historical case can obtain the respective sample case after the expert fully analyzes and refines.Be complementary relation between two kinds of cases.
The formation of 2 case libraries and utilization
Case library is that the result of fault analysis engine application model gathers, and also provides the case reference for the fault locating analysis engine carries out fault location.
Experts database is set up and maintenance tool mainly comprises case sample definition platform and case sample management platform.It comprises Fault tree, case Flow Chart Design and three part compositions of process step configuration, and the particular content brief introduction is as follows:
First: Fault tree.
" producer-producer's unit type-troubleshooting case (Case Name) ", every kind of unit type has its specific producer's alarm type definition, should set up corresponding troubleshooting case at certain producer's alarm type of certain unit type.
Second portion: case Flow Chart Design.
Support " the figure number is integrated " operation.The maintenance interface of similar fault-alarm event tree.
Third part: process step configuration.
Each arrangements of steps in the case flow process need comprise previous step and import data, this arrangements of steps (this step calling interface, the on-the-spot test of this step, this step customization criterion) suddenly and arrive next step output control contents such as (flow direction control, data are exported control).The wherein input of data, output can comprehensively reduce global object (pond) configuration process.
When producing fault, at first mate: when coupling goes up, handle according to the Fault Locating Method of history according to information such as device object and alarms; When coupling does not go up, we will alarm the information abstract of place equipment, and at this moment, we are indifferent to concrete device object, and emphasis is implemented on fault, alarm and the resource incidence relation, utilize the sample case to mate, when coupling goes up, in conjunction with the resources relationship interface, fault, alarm, the resources relationship described according to the sample case mate, specialize describing situation in the case, carry out the processing of fault, and reach the purpose of analysis.
As seen from the above, make up after the troubleshooting case library, can be the experience that the user accumulates fault location, improve the efficient of fault location, also the extraction for the fault location pattern provides the data basis.
(3) the 3rd steps: analyze existing fault case, summarize match patterns such as fault-alarm event tree and code book
Alarm is the performance of fault, analyzing correlation purpose between alarm and the fault and be the fault in order to determine to exist from alarm, is to realize quick fault location, propose the fault counter-measure, the record trouble position fixing process, form the key of fault location report and case.But finally from alarm determine that fault is a complicated problems very, in the present invention, analyze existing fault case, adopt method, realize failure location based on fault-alarm event tree deduction method and code book method integrated mode.
1, sets the pattern of deducing based on fault-alarm event
(1), realizes principle
The fault that communications network system takes place can produce related alarm event, and any one alarm event all may be to be caused by other faults or alarm event, has causal correlation between the incident.Can form a fault-alarm event tree by the fault of causal correlation and alarm event for one group, tree root is that the reason that causes this group incident is a fault, and tree intermediate node and leaf node then are therefore fault and the alarm event that produces, as shown in Figure 3.
The present invention according to network element failure-alarm signal flow relation, analyzes existing fault case according to above-mentioned principle, the communication network various kinds of equipment is set up the fault-alarm event Tree-structure Model with upstream and downstream relation.
By maintenance to tree structure, analyze the causality between alarm and the event of failure, the root reason that is out of order is deduced automatically according to the corresponding alarm and the correlative model of fault by system.
(2), fault-alarm event tree deduction pattern is set up flow process (as accompanying drawing 4)
(3), the application method of fault-alarm event tree schema
The pattern of fault-alarm event tree analysis of failure mainly comprises 6 two-dimentional forms in database, realize fault root reason intelligent decision by they call mutually, association and logical operation, it is respectively: alarm failure-alarm event tree describe, in general terms, alarm event table, alarm event causality table, cause routing table, cause alarm event and fault-alarm event tree graph shape table in the path.
When the alarm event tide arrives, call incident tide table information, find corresponding incident tide.According to alarm event table and alarm event causality table, in fault-alarm event tree graph shape table, find corresponding figure, alarm table according to the initiation path in the figure of place calls again, finds the current alarm event location in causing routing table, and traces back to the root failure cause thus.If the isolated direct root reason that must be out of order of incident.If single path fault-alarm event tree then according to causing the path, is progressively upwards traced back to the root incident, draw failure cause.If the complicated event tide is then set up causal event to carry out the incident partial tree according to (oval inner structure) among the figure, shine upon automatically then, progressively review the root incident of deriving according to the mapping partial tree again, draw failure cause.
2, based on the pattern of code book method
The basic thought of code book method is to set up the incidence matrices of potential problem (fault) and these problem symptoms of sign (alarm) and carry out positioning problems with it.Its specific algorithm is analyzed as follows:
(1), sets up event propagation model and additional conditions thereof.Professional subnets such as transmission, exchange are obtained its canonical topology, set up incident and propagation model by topological structure.
(2), generate set and coding.The work that generates set mainly is that fault in the system and input alarm are divided into two disjoint set P and S.Wherein P is a failure collection, is the failure cause that causes alarm.S follows the alarm set that generates for barrier for some reason, and element wherein be a series of alarms that caused by fault among the P, promptly by the alarm of following of fault initiation.Can rule of thumb simplify matrix according to the foundation such as shielding relation of alarm, by mathematical method P and S be carried out the relational matrix computing, finding the element among minimum code book and the pair set P is that fault is encoded.Suppose to exist following two set:
P＝{P
1，P
2，P
3…P
n}，S＝{S
1，S
2，S
3…S
n}
Pn and Sn are two finite aggregates.At first generate a P-S incidence relation table, corresponding each the different fault P of wherein every row, S is alarmed in then corresponding different the following of every row.Represent fault P and the incidence relation of following alarm S with " 0 " and " 1 " then in table, if promptly fault P1 can cause alarm S1, then (P1, value S1) is " 1 " just, otherwise is " 0 " in table.Getting first three columns represents as shown in Figure 5.
P encodes to the fault element, and be encoded to (1,0,1) as P1 is designated as P1=(1,0,1), in like manner can get P2=(1,1,0), P3=(0,1,1).As S1 or S3, be that fault P1 has taken place certainly when perhaps alarm takes place for S1 and S3, other is analogized.
(3), the generation of code book method mode
System is according to the fault case situation, and the code book of foundation definition and subsidiary conditions thereof produce the association mode between alarm and the fault automatically.
With P in the 2nd step, incidence relation such as the matrix of S are as follows:
Wherein
Work as s
iRp
jBe 1,
Be 0, then remember
Be relational matrix, because element wherein or 0 or 1 are called the Boole matrix on mathematics.After the together relevant subsidiary conditions combination of these information matrixs, just formed the association mode between alarm and the fault.Cataloged procedure in actual applications can realize that according to the incidence relation matrix of alarm and fault, the element among the pair set P is that fault is encoded by man-machine interaction.
(4), the utilization of code book method mode
When alarm takes place, the code book pattern brings into operation under the annex condition of setting, at first call S (alarm) set table, by fault-corresponding coding of warning relation table inquiry of having set up, through matrix operation, deduce the coding that is out of order fast, find failure cause from P (fault) set table rapidly according to the coding that obtains.
3, the combination application method of two kinds of patterns
In the power telecom network, concern complexity between fault and the alarm, sometimes can between fault and alarm, find apparent causal connection (as on same equipment or same circuit), then can't find tangible relation by the inspection of resource relevance at once sometimes.At this situation, be described from the relation of two sides emphatically fault and alarm based on fault-alarm event tree with based on the analytical model of code book method:
(1), the analytical method of setting based on fault-alarm event, be good at the conduct the relation between the alarm event of describing fault and its initiation, this relation has the characteristics of continuity (linearity) and " chain reaction ", that is: fault has caused the alarm event of one group of related generation;
(2), based on the analysis of code book method, be good at and describe fault-warning relation that causality is not obvious, correlation is comparatively discrete, this relation does not have continuity (promptly non-linear), uses code book then can characterize alarm and this disperse relation of failure cause, reaches the purpose of analysis.
During concrete the utilization, at first call interface described in the first step resources relationship inspection is carried out in alarm, for the alarm that has obvious resource relevance (relation has conductibility), use is analyzed based on the analytical method of fault-alarm event tree, otherwise, the warning relation disperse is then further used and is analyzed based on the method for code book.This shows,, can tackle the central most of accident analysis demands of network by combination with above-mentioned two kinds of patterns.
(4) the 4th steps: in conjunction with case and pattern information, operation troubles positioning analysis engine modules is carried out fault location
The design of fault locating analysis engine modules, purpose are to provide real-time fault analysis based on above pattern and case for the user.Network produces alarm event, triggers the operation of fault locating analysis engine, calls the pattern and the case of coupling and carries out the faults analysis processing, as Fig. 6, has described the handling process of fault locating analysis engine.
1, alarms the flow process of fault location
(1), the interface of operating specificationization obtains alarm from the Real-time Alarm information bank, its information format is changed, and forms normalized warning information, transfers to the fault locating analysis engine;
(2), the fault locating analysis engine reads relevant case from the troubleshooting case library, judge whether current alarm mates sample or historical case, if mated, then uses the described processing method of case to handle this fault;
(3), when not coupling does not go up case, analyze fault and position according to fault-alarm event tree and the combined mode of code book method mode;
(4), the fault locating analysis engine represents the result of the fault form with the failure cause report to the user, and is recorded in the troubleshooting case database.
2, the mode of flow performing and interaction process
Each arrangements of steps in the fault location flow process need comprise previous step to be imported data, this arrangements of steps (this step calling interface, the on-the-spot test of this step, this step customization criterion) suddenly and arrives next step output control contents such as (flow direction control, data are exported control), and the user uses keyboard/mouse input equipment operating trouble positioning flow.
Simultaneously, interactive interface will be shown to the user as the running status interface by display unit when alarming intellectual analysis, guides user is according to more predefined expert's strategies, fault location is carried out the decision-making assistant information support, treatment step, method and solution are provided, and the output fault location is totally reported.
Claims (10)
1. based on the power communication network fault positioning method of case and pattern matching, it is characterized in that may further comprise the steps:
(1) with unified form the alarm data of communication network has been carried out the standardization format conversion;
(2) mode with expert's typing or statistics fault case forms the troubleshooting case database;
(3) analyze existing fault case, summarize fault-alarm event tree and code book match pattern;
(4) in conjunction with case and pattern information, operation troubles positioning analysis engine modules is carried out fault location.
2. the power communication network fault positioning method based on case and pattern matching according to claim 1, it is characterized in that: defined the standard and the interface of a cover alarm format information in step (1), and realized standardization conversion a plurality of communication network alarm data forms.
3. the power communication network fault positioning method based on case and pattern matching according to claim 1 is characterized in that: in step (2)
Produce the dual case data type of historical failure case in the sample case of expert's typing mode and the running, wherein, do not have concrete device object in the sample case, only describe fault, alarm and resources relationship; Historical case has then write down certain once concrete troubleshooting case, exists concrete device object; The sample case forms concrete historical case after having carried out concrete utilization; And historical case obtains the respective sample case after the expert fully analyzes and refines.
4. the power communication network fault positioning method based on case and pattern matching according to claim 1 is characterized in that: in step (3)
Proposed fault-alarm event tree and code book combinations matches pattern, realized there being the extraction of pattern in the existing fault case.
5. the power communication network fault positioning method based on case and pattern matching according to claim 4, it is characterized in that, described fault-alarm event tree is formed a tree by one group by the fault of causal correlation and alarm event, tree root is that the reason that causes this group incident is a fault, and tree intermediate node and leaf node then are therefore fault and the alarm event that produces.
6. the power communication network fault positioning method based on case and pattern matching according to claim 4 is characterized in that, described code book pattern is that fault in the system and input alarm are divided into two disjoint set P and S; Wherein P is a failure collection, is the failure cause that causes alarm; S follows the alarm set that generates for barrier for some reason, and the matrix that P and S are formed has formed the association mode between alarm and the fault.
7. the power communication network fault positioning method based on case and pattern matching according to claim 4 is characterized in that,
Based on the analytical method of fault-alarm event tree, be used to describe the conduct the relation between the alarm event of fault and its initiation; Based on the analysis of code book method, be used to describe fault-warning relation that causality is not obvious, correlation is comparatively discrete.
8. the power communication network fault positioning method based on case and pattern matching according to claim 1 is characterized in that, in step (3)
At first call (1) step described in interface the resources relationship inspection is carried out in alarm, for the alarm that has the resource relevance, use is analyzed based on the analytical method of fault-alarm event tree, otherwise the use of warning relation disperse is analyzed based on the method for code book.
9. the power communication network fault positioning method based on case and pattern matching according to claim 1, it is characterized in that, described fault locating analysis engine modules provides accident analysis function based on above case and pattern for the user, and engine calls the analyzing and processing that corresponding case and pattern are carried out fault location with specific order and mode.
10. based on the power telecom network fault locator of case and pattern matching, comprise the processor that is used for the fault locating analysis computing, the memory that is used for inventory analysis engine modules program, pattern, case data, be used for the interface that is connected with communication network, the display unit that is used to report the result, be used for the mouse and the keyboard of case and pattern typing, it is characterized in that: also comprise
(1) troubleshooting case database: in order to the fault case information that produces in storage expert input and the running and the database of formation, content must comprise warning information, failure cause and processing method information;
(2) fault location pattern database: analyze existing fault case, extract the key message that fault location is handled, form database from the pattern matching of alarming fault based on fault-alarm event tree and code book method mode;
(3) fault locating analysis engine modules: with reference to the content of existing case information database, and the reference pattern database mates alarm and fault this module when carrying out, and realizes from alarming failure location, and exports the result of fault location.
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