CN108900345B - Power telecom network fragility link detects localization method - Google Patents
Power telecom network fragility link detects localization method Download PDFInfo
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- CN108900345B CN108900345B CN201810735974.2A CN201810735974A CN108900345B CN 108900345 B CN108900345 B CN 108900345B CN 201810735974 A CN201810735974 A CN 201810735974A CN 108900345 B CN108900345 B CN 108900345B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/142—Network analysis or design using statistical or mathematical methods
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
Abstract
The invention discloses power telecom network fragility links to detect localization method, the fragile structure factor and the business fragility factor are analyzed respectively according to power telecom network design feature and power business feature, and two kinds of fragile factors are merged, by considering that node itself fragility and multistage neighbor node fragility carry out analysis assessment to network；Using setting damped coefficient in power business importance assessment, the assessed value of teleservice different degree is corrected, is equivalent in end-to-end, if it exists a plurality of same type business, then the different degree of every business improves；Using the vulnerability assessment of the Generalized Triangular Norm integrated network structure and business, that is, analyze influence of the unstability of network internal to fragility influence of the analysis network service transmission to fragility again；Comprehensively considered node itself fragility it is further contemplated that neighbor node fragility contribution；Solve the problems, such as current algorithm mostly from the aspect of single.
Description
Technical field
The present invention relates to a kind of power telecom network fragility link orientation problems, and in particular to one kind is based on topological structure and electricity
The method of the power telecom network fragility link detection positioning of power business.
Background technique
Power telecom network is the guarantee of the reliable and stable operation of power system security, and power telecom network is also electric power accident shadow
The amplifier of the degree of sound.The irregular operation of power telecom network can lead to electric system and break down or electric power accident be caused to influence
The cascading of degree.Electric system has become the safety of electric system to the depth dependency of electric power communication network
The another hidden danger of stable operation.
As a kind of special communication network, power telecom network topological structure is in hierarchical structure, electric power website distributed pole
To be extensive, power optical fiber route majority is in remote districts, causes power communication system to be highly prone to external interference, is unfavorable for day
Chang Yunwei.The detection positioning of power telecom network fragility link is very difficult, is to belong to a global problem, and grind at present
The hot spot studied carefully.Traditional power telecom network vulnerability assessment method mainly has the fragility based on topological structure layer or power business layer
Property assessment, topological structure mainly sets about according to Complex Networks Theory and small-world network theory, analysis physics transmission network it is interior
Unstable, power business measures the influence degree of electric system after mainly being failed according to power business.However, at present seldom
There is a vulnerability assessment method for taking into account network structure and business, current algorithm is mostly from the aspect of single.Utilize network
It is a kind of relatively common appraisal procedure that a certain attribute, which calculates its fragility, but this can not accurately portray node in whole network
In fragility.
Summary of the invention
To solve the problems in background technique, the present invention provides the power telecom network fragility link to solve the above problems inspections
Survey localization method.
The present invention is achieved through the following technical solutions:
Power telecom network fragility link detects localization method, comprising the following steps:
A. the vulnerability assessment of power telecom network topological structure is carried out, is joined according to the fragile structure index in Complex Networks Theory
Number, using the legal determining index weights of step analysis, quantitatively determines weight using entropy assessment, weight is coupled, comprehensive
More fragile structure indexs and weight obtain node structure fragility index factor；
B. the vulnerability assessment of power communication network service is carried out, according to power business distribution and power business importance, setting
Correction factor is obtained improved teleservice different degree distribution, is obtained using the loss amount of business different degree after node failure
Node traffic fragility index factor；
C. the power telecom network vulnerability assessment for carrying out the single fragile factor, is arranged contribution coefficient, integration node itself is crisp
The weak factor and 1~m rank neighbor node fragility factor obtain vulnerability assessment value；
D. the analysis of step A and step B is utilized as a result, integrating two kinds of fragile factors using the Generalized Triangular Norm, and according to step
Rapid C analytic process carries out comprehensive analysis, obtains the fragile link in network.
The fragile structure factor is analyzed respectively according to power telecom network design feature and power business feature and business is fragile
The factor, and two kinds of fragile factors are merged, by considering that node itself fragility and multistage neighbor node fragility carry out network
Analysis assessment；Using setting damped coefficient in power business importance assessment, the assessed value of teleservice different degree is corrected,
It is equivalent in end-to-end, if it exists a plurality of same type business, then the different degree of every business improves；Utilize the Generalized Triangular Norm
The vulnerability assessment of integrated network structure and business analyzes influence of the unstability of network internal to fragility and analyzes again
The influence to fragility is transmitted in network service；Comprehensively considered node itself fragility it is further contemplated that neighbor node fragility tribute
It offers；Solve the problems, such as current algorithm mostly from the aspect of single.
Further, the node structure fragility in step A follows the steps below:
A1. assume that the structural parameters weight based on entropy assessment and analytic hierarchy process (AHP) is w1k, w2k；
A2. following solution procedure is carried out:
θk=aw1k+(1-a)w2k,
θ in formulakFor complex weight, fiFor node structure fragility value.
Further, the node traffic fragility in step B follows the steps below:
B1. assume that power business importance is SIi, end-to-end path length is dij, λ is correction factor；
B2. teleservice different degree is solved as follows:
B3. the node fragility based on business is solved as follows:
W in formulajFor the teleservice different degree after normalization.
Further, step C the following steps are included:
C1 assume alpha, gamma be two adjustable preset parameters, be respectively intended to adjust node itself and 1 to m rank neighbours save
Percentage contribution of the point fragility to node fragility, δi, δjIt is fragile respectively to assess investigated node itself and 1~m rank neighbours
Factor values
Further, step D the following steps are included:
D1. the vulnerability assessment of integration node structure and business fragility is solved as follows:
Ii=AEi,
A=[α, γ, γ2,...,γm],
The matrix that A is made of node itself and neighbor node fragility contribution factor in formula, EiFor node i to be assessed
Fragile level of factor matrix.
The present invention has the advantage that and the utility model has the advantages that
1, the present invention according to power telecom network design feature and power business feature analyze respectively the fragile structure factor and
The business fragility factor, and two kinds of fragile factors are merged, by considering node itself fragility and multistage neighbor node fragility pair
Network carries out analysis assessment；Using the vulnerability assessment of the Generalized Triangular Norm integrated network structure and business, that is, analyze in network
The influence to fragility is transmitted in analysis network service again for influence of the unstability in portion to fragility；Node itself is comprehensively considered
Fragility it is further contemplated that neighbor node fragility contribution；Solve the problems, such as current algorithm mostly from the aspect of single；.
2, the present invention corrects teleservice different degree using setting damped coefficient in power business importance assessment
Assessed value is equivalent in end-to-end, if it exists a plurality of same type business, then the different degree of every business improves；
3, the present invention analyzes network internal using the vulnerability assessment of the Generalized Triangular Norm integrated network structure and business
Influence of the unstability to fragility influence to fragility is transmitted in analysis network service again；It is crisp node itself has been comprehensively considered
Weak property it is further contemplated that neighbor node fragility contribution.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the power telecom network analogous diagram of embodiment.
Fig. 2 is the synthesis vulnerability assessment value of embodiment.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
As shown in Figure 1, power telecom network fragility link detects localization method, comprising the following steps:
A. the vulnerability assessment of power telecom network topological structure is carried out, is joined according to the fragile structure index in Complex Networks Theory
Number, using the legal determining index weights of step analysis, quantitatively determines weight using entropy assessment, weight is coupled, comprehensive
More fragile structure indexs and weight obtain node structure fragility index factor；
B. the vulnerability assessment of power communication network service is carried out, according to power business distribution and power business importance, setting
Correction factor is obtained improved teleservice different degree distribution, is obtained using the loss amount of business different degree after node failure
Node traffic fragility index factor；
C. the power telecom network vulnerability assessment for carrying out the single fragile factor, is arranged contribution coefficient, integration node itself is crisp
The weak factor and 1~m rank neighbor node fragility factor obtain vulnerability assessment value；
D. the analysis of step A and step B is utilized as a result, integrating two kinds of fragile factors using the Generalized Triangular Norm, and according to step
Rapid C analytic process carries out comprehensive analysis, obtains the fragile link in network.
The fragile structure factor is analyzed respectively according to power telecom network design feature and power business feature and business is fragile
The factor, and two kinds of fragile factors are merged, by considering that node itself fragility and multistage neighbor node fragility carry out network
Analysis assessment；Using setting damped coefficient in power business importance assessment, the assessed value of teleservice different degree is corrected,
It is equivalent in end-to-end, if it exists a plurality of same type business, then the different degree of every business improves；Utilize the Generalized Triangular Norm
The vulnerability assessment of integrated network structure and business analyzes influence of the unstability of network internal to fragility and analyzes again
The influence to fragility is transmitted in network service；Comprehensively considered node itself fragility it is further contemplated that neighbor node fragility tribute
It offers；Solve the problems, such as current algorithm mostly from the aspect of single.
When implementation, the node structure fragility in step A is followed the steps below:
A1. assume that the structural parameters weight based on entropy assessment and analytic hierarchy process (AHP) is w1k, w2k；
A2. following solution procedure is carried out:
θk=aw1k+(1-a)w2k,
θ in formulakFor complex weight, fiFor node structure fragility value.
Node traffic fragility in step B follows the steps below:
B1. assume that power business importance is SIi, end-to-end path length is dij, λ is correction factor；
B2. teleservice different degree is solved as follows:
B3. the node fragility based on business is solved as follows:
W in formulajFor the teleservice different degree after normalization.
Step C the following steps are included:
C1 assume alpha, gamma be two adjustable preset parameters, be respectively intended to adjust node itself and 1 to m rank neighbours save
Percentage contribution of the point fragility to node fragility, δi, δjIt is fragile respectively to assess investigated node itself and 1~m rank neighbours
Factor values
Further, step D the following steps are included:
D1. the vulnerability assessment of integration node structure and business fragility is solved as follows:
Ii=AEi,
A=[α, γ, γ2,...,γm],
The matrix that A is made of node itself and neighbor node fragility contribution factor in formula, EiFor node i to be assessed
Fragile level of factor matrix.
As Figure 1-Figure 2, the power telecom network figure built is managed according to power telecom network topological structure and complex network
By analysis network element structures fragility parameter value determines structural parameters weight using analytic hierarchy process (AHP) and entropy assessment, to a variety of knots
Structure parameter, which is linearly summed, obtains the fragile structure factor, and setting power business is distributed, and according to power business importance, analyzes in network
The distribution of teleservice different degree, and with this computing unit business fragility, pass through the Generalized Triangular Norm aggregators fragile structure
The factor and the business fragility factor consider that the influence of node itself fragility and 1~m rank neighbor node fragility, analysis obtain
The comprehensive fragile value of node；Simulation analysis result enters following table:
The sequence of node fragility is as follows:
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (4)
1. power telecom network fragility link detects localization method, which comprises the following steps:
A. the vulnerability assessment of power telecom network topological structure is carried out, according to the fragile structure index parameter in Complex Networks Theory,
Using the legal determining index weights of step analysis, weight is quantitatively determined using entropy assessment, weight is coupled, comprehensive more knots
Structure fragility index and weight obtain node structure fragility index factor；
B. the vulnerability assessment of power communication network service is carried out, according to power business distribution and power business importance, setting amendment
Coefficient obtains improved teleservice different degree distribution, obtains egress using the loss amount of business different degree after node failure
Business fragility index factor；
C. the power telecom network vulnerability assessment for carrying out the single fragile factor, is arranged contribution coefficient, integration node itself it is fragile because
Son and 1~m rank neighbor node fragility factor obtain vulnerability assessment value；
D. the analysis of step A and step B is utilized as a result, integrating two kinds of fragile factors using the Generalized Triangular Norm, and according to step C points
Analysis process carries out comprehensive analysis, obtains the fragile link in network；
Wherein, step D the following steps are included:
D1. the vulnerability assessment of integration node structure and business fragility is solved as follows:
Ii=AEi,
A=[α, γ, γ2,...,γm],
The matrix that A is made of node itself and neighbor node fragility contribution factor in formula, EiFor the crisp of node i to be assessed
Weak level of factor matrix.
2. power telecom network fragility link according to claim 1 detects localization method, which is characterized in that the step A
In node structure fragility follow the steps below:
A1. assume that the structural parameters weight based on entropy assessment and analytic hierarchy process (AHP) is w1k, w2k；
A2. following solution procedure is carried out:
θk=aw1k+(1-a)w2k,
θ in formulakFor complex weight, fiFor node structure fragility value.
3. power telecom network fragility link according to claim 1 detects localization method, which is characterized in that the step B
In node traffic fragility follow the steps below:
B1. assume that power business importance is SIi, end-to-end path length is dij, λ is correction factor；
B2. teleservice different degree is solved as follows:
B3. the node fragility based on business is solved as follows:
W in formulajFor the teleservice different degree after normalization.
4. power telecom network fragility link as claimed in any of claims 1 to 3 detects localization method, feature exists
In, the step C the following steps are included:
C1 assume alpha, gamma be two adjustable preset parameters, be respectively intended to adjust node itself and 1 to m rank neighbor node it is crisp
Percentage contribution of the weak property to node fragility, δi, δjRespectively assess investigated node itself and 1~m rank neighbours' fragility factor
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