CN102437922A - N-1 principle-based electric power communication network service influence analysis method - Google Patents
N-1 principle-based electric power communication network service influence analysis method Download PDFInfo
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Abstract
The invention provides an N-1 principle-based electric power communication network service influence analysis method, which comprises the following steps that: (1) application data for analyzing the service influence areis inputted; (2) a range of associated sources is determined according to the current application data; (3) whether the service is influenced or not is judged according to the resource configuration; and (4) the influence degree of the service is determined according to the multiplex protection situation, and an analysis report is outputted. Due to the adoption of the method, the problem that the present method or the present system cannot realize the multianalysis can be solved, and the accurate, comprehensivemultiple and rapid service influence N-1 analysis can be realized when the electric power communication network issues a malfunction alarm, the performance is worsened and the device is overhauled.
Description
Technical field
The present invention relates to the business impact analysis method in power telecom network field, particularly relate to a kind of energy communication service impact analysis method based on the N-1 principle.
Background technology
Base support as power system operation; Powerline network is carrying such as important communication such as relaying protection, stable controls professional; For make communication network when there are degradation trend in the alarm of breaking down, performance or carry out overhaul of the equipments, can in time navigate to the business that possibly influence, study a kind of efficiently, the communication service impact analysis method seems particularly important fast and accurately.
About business or business impact analysis aspect; Through understanding the ways and means of finding to have some based on external monitoring; As reaching " four is distant " digital telecontrol channel monitoring scheme based on simulation telemechanical circuit; The network level monitoring mode that a kind of dotted line of IP based network has both is realized the monitoring to the telemechanical transmission channel, also has a kind of fault service impact model and analytical method based on strategy.
In research process of the present invention, find that there are following problem in above analytical method or model:
(1) system of these methods and realization is confined to the external monitoring means, and flexibility has much room for improvement., but often need configuration and the operation information (like passway by, performance degradation etc.) of joint business self to analyze in the actual conditions, analyze not comprehensive.
Business impact analysis when (2) these methods only are confined to break down can not satisfy the needs of practical application.With patent of invention " business impact analysis method and system " (application number: 200910007256.4; Publication number: CN101808351A) be example; It only is confined to " incident that resource produced that capturing service is relevant; and the incident of gathering is carried out correlation analysis according to incidence relation between incident related resource and resource, confirm the business and the degree of root events affecting ", but can't be applicable to the business impact analysis when not producing alarm (like performance degradation, maintenance).
(3) in addition, during service impact when analyzing concrete alarm or fault generating, do not combine the multiplexing protection mechanism of communications network, to the degree of service impact and scope inadequately fully with accurate.
(4) above analytical method is not supported power communication N-1 principle; Electric power N-1 principle is claimed the single failure safety criterion again; It is a kind of very easy safety inspection criterion; This guide rule has directive significance to the safe and stable operation of power communication system equally, supports to improve when N-1 analyzes principle pressing for of power communication reliability.
Summary of the invention
Deficiency to prior art; The present invention proposes professional relevant resource model; Based on this model; In conjunction with occuring simultaneously and accident analysis tree means have proposed the analytical method of professional degree of susceptibility and coverage, and the business impact analysis when having realized fault warning, performance degradation and maintenance, to solve the problem that the method for having now or system can not multianalysises based on the N-1 principle.
The present invention realizes N-1 business impact analysis method flow shown in accompanying drawing 1, and its concrete steps are:
Steps A: the application data of business impact analysis is carried out in input;
Step B: according to the scope of current application data location institute related resource;
Step C: judge according to resource distribution whether it influences business;
Step D: confirm the degree of service impact according to multiplexing protection situation, and export analysis report.
Special, the application data input that steps A is supported, its characteristics are: the input content comprises fault warning, performance degradation and three kinds of concrete application datas of overhaul of the equipments.
Special, the fault warning that steps A is supported, performance degradation and three kinds of modes of overhaul of the equipments, its characteristics are: analytical applications comprises whole circuit and the business that is associated with resource, and is divided into following two big type: equipment and pipeline.
Special, the related resource scope that step B located, its characteristics are: the incidence relation between each resource comprises carrying, comprises and is connected three kinds of relations.
Special, the related resource scope that step B located, its characteristics are: resource physical relationship content is: (1) business comprises that mainly important communication such as relaying protection, stable control are professional; (2) communication service relies on and is carried on the resources such as circuit and optic fibre light path; (3) circuit or light path resource rely on and are carried on transmission network resource, cable resource, wire resources and the communication power supply device resource.
Special, step C institute is in order to judge whether traffic affecting method of current application, and its characteristics are: resource distribution scope under its second step of concrete analysis and the bearing relation between resource and the business, thereby the business of decision influence.
Special, step D institute is in order to the degree of measurement service impact, and its characteristics are: comprise unaffected, potential impact, performance is influenced and have a strong impact on four kinds of different influence.
Special; Step D institute is in order to weigh the service impact degree methods, and its characteristics are: with unprotect, 1+1 multiplex section protection, 1:N multiplex section protection, 2 fiber complex section guard rings, 4 fiber complex section guard rings and SNCP in the multiplexing protected mode as analyzing content.
Special, the business impact analysis report that step D exported, its characteristics are: the related resource and the service impact degree sign that contain business impact analysis.
After the present invention uses; Can realize from professional its other resources configuration information angle; On the basis that combines Monitoring Data such as alarm and performance; Can realize to powerline network when the fault warning, when performance degradation and overhaul of the equipments accurately, comprehensively and fast service impact N-1 analyze, and will realize key link based on the analysis of N-x principle reliability of electric force communication network.
Description of drawings
Fig. 1 the present invention realizes N-1 business impact analysis method flow diagram.
The professional related resource uml model of Fig. 2 figure.
The professional common factor with resource of Fig. 3 schemes.
Fig. 4 communication service accident analysis tree.
Fig. 5 business impact analysis transmission network topological diagram of giving an example.
Embodiment
Further specify practical implementation content of the present invention below in conjunction with accompanying drawing, as follows:
(1) first step: the application data of business impact analysis is carried out in input
The input content comprises fault warning, performance degradation and three kinds of concrete application datas of overhaul of the equipments, and as shown in Figure 1, particular content comprises:
1, fault warning data
The fault business impact analysis mainly is used for when breaking down the affected communication service that navigates to promptly and accurately, so that notify the user or organize the round about circuit passage, avoids communication service to interrupt for a long time.Whole circuit and business that the applied system analysis of fault business impact analysis is associated with the fault resource.According to the difference of the resource that breaks down, can be divided into following two types:
(1) equipment fault.Equipment fault comprises types such as machine frame, machine dish, port failure.
(2) pipeline failure.The fault of pipeline comprises optical cable, cable, fibre core, cable core etc.
When equipment or pipeline break down when producing LOS (the receiving terminal light signal is lost), AIS (complete 1 index signal) and waiting alarm, as fault warning data, following basic data should be provided also, as follows shown in the example:
| The alarm attributes field | Content for example |
| Unique ID of alarm | Like UUID: " CA68783AAAB043D28C87406DB4EDD0CB " |
| Alarm name | Like " 622M port [#1]: LOS alarm " |
| Alarm place device type ID | Like " SDH network element " |
| Alarm place device object ID | Like UUID: " d4aa9194156340e38b05477275e10529 " |
| The alarm type identifier | Like " agreement alarm " |
| The alarm type object ID | Like UUID: " AE6E54F4D86146C2821BCBFC38A206E1 " |
| The alarm grade | Like " high severity alarm " or " Severity " |
| The alarm time started | Like " 2011-08-02 12:09:41 " |
| The alarm clearing time | Like " 2011-08-03 09:00:45 " |
| Alarm cause | Like " LOS " |
| The resource type of alarm takes place | Like " port " |
| The resource of alarm takes place | Like " 155M port [#1] " |
| Mode of operation | Like " affirmation " |
| Equipment producer model | Like " in emerging SDH optical transceiver " |
2, performance degradation data
Performance degradation can not cause service disconnection, but the normal operation of business is existed potential threat, because communication system of power grids important service has certain requirement to the performance quality of transmission channel, is mainly reflected in performance data:
(1), OOP (light transmitted power), unit: dBm;
(2), IOP (light receiving power), unit: dBm;
(3), the ES (SES) of the channel layer of each speed, unit: Seconds;
(4), SES (Severely Errored Second), unit: Seconds;
(5), BBE (Background Block Error);
(6), UAS (unavailable second), unit: Seconds.
3, overhaul of the equipments business impact analysis
Overhaul of the equipments is made a comment or criticism equipment or the circuit of normal operation because of operational mode adjustment (like optical cable cleft grafting, resource migration etc.), scheduled overhaul or disappear to lack and the needs that the inspection that produces is repaired such as stop using as a servant.In this case, the data owner of overhaul of the equipments will comprise data such as equipment and optical cable, and the resource of required analysis mainly comprises:
(1) the transmission network element in the transmission system, integrated circuit board, network element port.
(2) power-supply device in the power-supply system, power module, power supply terminal/switch.
(3) the PCM network element among the PCM, integrated circuit board, network element port.
(4) optical cable in the optical cable, optical cable segment, optical cable fibre core.
(5) the exchange network element in the scheduling switch, network element machine frame, integrated circuit board.
(6) business network element in the operation system-network element machine frame-integrated circuit board.
(7) terminal in the Wiring module.
(2) second steps: according to the scope of current application data location institute related resource
1, professional related resource data modeling
The resources relationship modeling is the prerequisite of analyzing, and the power communication system structure is comparatively complicated now, for realizing the analysis to the service impact scope, is necessary existing power communication important service and relevant resource thereof are carried out abstract modeling.Use the UML modeling method like Fig. 2, the incidence relation between concrete one each resource comprises carrying, comprises and connects three kinds of relations and describes the relation between the professional related resource, and wherein the incidence relation between each resource is following:
(1) business mainly comprises relaying protection, stablizes control, important communication such as telemechanical, dispatching telephone, video conference are professional;
(2) communication service relies on and is carried on circuit (like transmission channel, 64K circuit) and the optic fibre light path resources such as (like special-purpose fibre cores);
(3) circuit or light path resource rely on and are carried on transmission network resource (like equipment, slot, port, time slot), cable resource (like optical cable segment, fibre core etc.), wire resources and the communication power supply device resource.
Normalizing, comprehensively monitoring that the modern communications network management system has been carried out data to resource and monitoring are reflected to real time information on the real-time property of resource; Modeling through above service resources; The real time data of further analysis of business being quantized on the concrete actual resource and being combined to collect just can realize the analysis to service impact.
2, the relation of energy communication service classification and related resource
Energy communication service has characteristics and the type of self, in order to distinguish these professional bearing modes, and the emphasis of paying close attention to is specialized, and is convenient to carry out the analysis based on bearer service resource side, and using occurs simultaneously describes type of service, as shown in Figure 3.This common factor is described below with mathematical formulae:
M indication circuit loaded service, N and P represent optical service, and wherein P representes that special-purpose fibre core is professional, and the common guarantor that is used to continue waits dedicated service.It is thus clear that, so analyze professional relatedly with which resource, just can analyze the situation that influences of resource distribution and state pair and business through intersection operation.
(3) the 3rd steps: judge according to resource distribution whether it influences business
1, energy communication service accident analysis tree
Under the prerequisite of taking all factors into consideration the power communication own characteristic, on the basis that takes out the power communication fault point, the professional failure effect analysis (FEA) tree-model of power communication unprotect as shown in Figure 4 can be proposed:
(1) that constitute fault during one or more fault or logic, in this situation, any power source, optical cable, distribution, transmission fault all can cause the business that is carried on unprotect mode on place circuit or the light path to be affected;
(2) communication power supply breaks down, and causes to transmission equipment power supply failure, causes related transmission, fault, and business can't normally be moved;
When (3) catastrophe failure such as disconnected fibre taking place when optical cable, cause direct light path fault effects to service operation, or when the related transmission that causes, fault, business can't normally be moved;
(4) when distribution, transmission, circuit, light path performance degradation, cause QoS to descend.
2, the concrete application of traffic analysis
During (1) for the fault warning business diagnosis; Analyze this fault warning place equipment or the related resource of pipeline in communication network, find out all circuit that this equipment/pipeline carries, confirm affected business with this; Analyze its protection destruction situation again, and suffered effect
During (2) for the performance degradation business diagnosis; Can analyze correlated performance value as above on the circuit of professional place; When the value of this performance surpasses the threshold value of professional normal service requirement; According to its actual influence degree situation, list affected business information and influence degree, for the dispatcher provides service feature degree of susceptibility assessment relevant information.
During (3) for the overhaul of the equipments business diagnosis; Overhaul of the equipments often causes its loaded service operation; Therefore be necessary to monitor the resource unusual fluctuation or when the man-made resources unusual fluctuation, analyze the business that it will have influence on, for the communication speciality administrative staff assess influence, scheduling resource provides foundation.
(4) the 4th steps: confirm the degree of service impact, and the output analysis report
1, service impact degree definition
Various faults are different to the influence degree of business, as important service such as relaying protection, both can be carried on special-purpose fibre core or 2M passage, and it is different to the service impact situation under two kinds of situation, to break down.For quantitatively marking professional degree of susceptibility, for the service impact report provides the standard of weighing influence degree, in conjunction with the possible situation in the actual motion, it is as shown in table 1 to sum up the energy communication service degree of susceptibility:
The professional degree of susceptibility definition of table 1
| Influence degree | Describe |
| Unaffected | Service operation is normal |
| Potential impact | Business can normally be moved, but has potential faults |
| Performance is influenced | Business can be moved, but service quality is relatively poor |
| Have a strong impact on | Business can't be moved |
2, support the business impact analysis of multiplexing protection
The service impact degree seems particularly important when having the business diagnosis of the multiplexing grade of protection.When having multiplex section and SNCP mode in the G.841 described SDH network system of ITU-T proposed standard document, there is certain difference in the suffered influence degree of system.In addition, when network performance generation deterioration, can cause to business that performance is influenced in various degree.When having enumerated under several kinds of common protected modes intermediate line link generation Single Point of Faliure, to the influence degree of business like table 2.
Multiplexing protected mode of table 2 and influence degree
| Protected mode | Influence degree |
| Unprotect | Have a strong impact on |
| The 1+1 multiplex section protection | Potential impact |
| The 1:N multiplex section protection | Potential impact |
| 2 fiber complex section guard rings | Potential impact |
| 4 fiber complex section guard rings | Unaffected |
| SNCP | Potential impact |
3, communications network business impact analysis instance
Certain SDH transport network topology is as shown in Figure 5 for example, and it has carried two business: professional 1 (A is to D) and professional 2 (G is to E).Simplify port, sequential and intersection specification specified: professional 1 path is " A-B-D ", and the protection path is " A-C-B-D "; Professional 2 paths are " G-F-E ", and the protection path is " G-F-B-D-E ", all forms 1+1 protection.
(1) when alarm such as B-C span line C end light mouth generation LOS; The method of analysis of failure alarm business influence: analyze according to analytical model and multiplexing protection influence degree; Can find that professional 1 path " A-C-B-D " is destroyed, but other circuit A-B-D operation is normal; After system's auto switching was multiplexing, professional degree of susceptibility was " potential impact "; And business 2 is unaffected.
(2) when deterioration takes place in B-D span line performance " transmitting-receiving luminous power "; The method of analytical performance deterioration service impact: can find according to model, for business 1, behind the performance degradation; Cause that performance all descends on professional 1 liang of paths, therefore professional 1 is that performance is influenced; Professional 2 a paths " G-F-B-D-E " performance is also influenced, and an other paths " G-F-E " is unaffected, takes all factors into consideration, and professional 2 degree of susceptibility are potential impact.
(3) when the E-F optical cable segment is overhauled, analyze the method for maintenance service impact: can find that according to model this maintenance does not influence professional 1 two paths, professional 1 is unaffected; And for business 2, " G-F-E " is influenced in the path, and after system's auto switching was multiplexing, influence degree was a potential impact.
The concrete technological detailed description of other of the method for the invention and system need be consulted the description of appropriate section in the above-mentioned explanation of the present invention, no longer tired stating.
Those skilled in the art can change or the design of modification but do not break away from thought of the present invention and scope the present invention.Therefore, if of the present invention these are revised within the technical scope that belongs to claim of the present invention with modification and be equal to, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. the power telecom network business impact analysis method based on the N-1 principle comprises the steps: A: import the application data of carrying out business impact analysis; B: according to the scope of current application data location institute related resource; C: judge according to resource distribution whether it influences business; D: confirm the degree of service impact according to multiplexing protection situation, and export analysis report.
2. a kind of power telecom network business impact analysis method based on the N-1 principle according to claim 1 is characterized in that, in the said steps A: the input content comprises fault warning, performance degradation and three kinds of concrete application datas of overhaul of the equipments.
3. a kind of power telecom network business impact analysis method according to claim 1 based on the N-1 principle; It is characterized in that; In the said steps A: the fault warning of being supported, performance degradation and three kinds of modes of overhaul of the equipments; Its characteristics are: analytical applications comprises whole circuit and the business that is associated with resource, and is divided into following two big type: equipment and pipeline.
4. a kind of power telecom network business impact analysis method according to claim 1 based on the N-1 principle; It is characterized in that; Among the said step B: the related resource scope of being located, its characteristics are: the incidence relation between each resource comprises carrying, comprises and annexation.
5. a kind of power telecom network business impact analysis method according to claim 1 based on the N-1 principle; It is characterized in that; Among the said step B: the related resource scope of being located, its characteristics are: resource physical relationship content is: (1) business comprises that mainly important communication such as relaying protection, stable control are professional; (2) communication service relies on and is carried on the resources such as circuit and optic fibre light path; (3) circuit or light path resource rely on and are carried on transmission network resource, cable resource, wire resources and the communication power supply device resource.
6. a kind of power telecom network business impact analysis method according to claim 1 based on the N-1 principle; It is characterized in that; Among the said step C: institute is in order to judge whether traffic affecting method of current application; Its characteristics are: resource distribution scope under its second step of concrete analysis and the relation between resource and the business, thereby the business of decision influence.
7. a kind of power telecom network business impact analysis method according to claim 1 based on the N-1 principle; It is characterized in that; Among the said step D: in order to weigh the degree of service impact, its characteristics are: comprise unaffected, potential impact, performance is influenced and have a strong impact on four kinds of different influence.
8. a kind of power telecom network business impact analysis method according to claim 1 based on the N-1 principle; It is characterized in that; Among the said step D: institute is in order to weigh the service impact degree methods, and its characteristics are: with unprotect, 1+1 multiplex section protection, 1:N multiplex section protection, 2 fiber complex section guard rings, 4 fiber complex section guard rings and SNCP in the multiplexing protected mode as analyzing content.
9. a kind of power telecom network business impact analysis method according to claim 1 based on the N-1 principle; It is characterized in that; Among the said step D: the business impact analysis report that the 4th step was exported, its characteristics are: the related resource and the service impact degree sign that contain business impact analysis.
10. a kind of power telecom network business impact analysis method according to claim 1 based on the N-1 principle; It is characterized in that: the whole steps flow process; With the key link that realizes analyzing, for basic, available analytical method is provided based on the N-x principle based on N-x principle reliability of electric force communication network.
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