CN105703973A - Composite-measurement-based reliability research method for power communication fiber network - Google Patents
Composite-measurement-based reliability research method for power communication fiber network Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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Abstract
The invention provides a composite-measurement-based reliability research method for a power communication fiber network. The method comprises: effectiveness and fiber attenuation are used as measurement indexes for evaluating reliability of a power communication fiber network; a bandwidth, time delay, a packet loss, and a cost are used as indexes for evaluating a service transmission performance of the power communication fiber network; effectiveness, fiber attenuation, bandwidth, time delay, packet loss, and cost data are collected from operation data of an existing power communication fiber network, a mathematic model of the power communication fiber network is established by using the data, and constraint conditions of the measurement indexes including the effectiveness, fiber attenuation, bandwidth, time delay, packet loss, and cost are set; and composite measurement m optical circuit configuration is carried out on a to-be-evaluated power communication fiber network by using the mathematic model of the power communication fiber network. According to the invention, the method has a certain guidance significance in network optimization and resource allocation of the power communication fiber network as well as improvement of the reliability management level of the power communication network.
Description
Technical field
The invention belongs to powerline network planning operation technical field, particularly relate to a kind of power communication fiber optic network reliability consideration method based on composite measure。
Background technology
Can power telecom network will be directly connected to the safety and stability of power system production run by reliability service, once the communication broke down of important step, will result in the massive losses of electrical network。Along with the construction of intelligent substation and widely using of intelligence instrument, powerline network carrying class of business and quantity sharply increase, owing to each business is also not quite similar for the transmission requirement of communication, thus the transmission service qualities (QoS) such as the bandwidth of power optical fiber transmission, time delay are proposed multi-level restriction demand。Therefore, the reliability assessment of fiber optic circuit is just particularly important with the work of circuit configuration optimization。But still lack corresponding method at present。
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of power communication fiber optic network reliability consideration method based on composite measure。
In order to achieve the above object, the power communication fiber optic network reliability consideration method based on composite measure provided by the invention includes the following step of performing in order:
Step 1) adopt effectiveness, optical fiber attenuation as the measurement index evaluating power communication fiber optic network reliability, strengthen the ruining property of resistance of network with this, improve network survivability and availability；
Step 2) adopt bandwidth, time delay, packet loss, cost as the measurement index evaluating power communication fiber optic network service transmission performance, to meet the transmission service quality demand of different business；
Step 3) from the service data of existing power communication fiber optic network, collect effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost data, and utilize these data to set up the mathematical model of power communication fiber optic network, concurrently set effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and the cost constraints at interior measurement index；
Step 4) utilize the mathematical model of above-mentioned power communication fiber optic network that power communication fiber optic network to be evaluated carries out the configuration of composite measure m optimum circuit。
In step 3) in, described collects effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost data from the service data of existing power communication fiber optic network, and utilize these data to set up the mathematical model of power communication fiber optic network, concurrently setting effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost in the method for interior measurement index constraints is:
Effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost data is collected from the service data of existing power communication fiber optic network, utilize these data to set up the mathematical model of power communication fiber optic network, the equipment in power communication fiber optic network and optical fiber are equivalent to the node in undirected weighted graph G (V, E) and limit, wherein V={v1, v2 ..., vm} represents node set, E={e1, e2 ..., en} represents the set of link ei；According to the relevant parameter affecting power communication fiber optic network, link ei is arranged multiple weighing value, namely in power communication fiber optic network, each link ei has multiple weights, constitute r weight weighted graph G, r is the number of weights in each of the links ei, then power communication fiber optic network is the acyclic path (set of node and link) from source node to destination node；According to effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost, the impact of power communication fiber optic network is set the constraints of above-mentioned each test index simultaneously:
Bandwidth: DK >=BW
Optical fiber attenuation:
Time delay: l≤Dr
Packet loss:
Effectiveness: ACp≥ACr
Cost:
BW, Ar, Dr, pr, ACr, Cr represent the threshold value of bandwidth, optical fiber attenuation, time delay, packet loss, effectiveness, cost respectively。
In step 4) in, power communication fiber optic network to be evaluated is carried out the method for composite measure m optimum circuit configuration and is by the described mathematical model utilizing above-mentioned power communication fiber optic network:
Step 4.1) demand according to power communication fiber optic network to be evaluated, utilize the mathematical model of above-mentioned power communication fiber optic network to determine BW, Ar, Dr, pr, ACr, Cr of power communication fiber optic network to be evaluated；
Step 4.2) in r weight weighted graph G, needed for adopting acyclic m shortest path algorithm to obtain correspondence, m bar shortest path collection Rij (m), m bar shortest path collection Rij (m) between node pair represent the m paths collection from source node i to destination node j；
Step 4.3) to shortest path collection RijM all path computing compound weights in (), carry out ordering selection scheme, concrete operation method is as follows: calculate r successivelyij∈RijM the bandwidth of (), time delay, packet loss, effectiveness are in interior path metrics instruction, remove the path being unsatisfactory for constraints, and to meeting the path of constraints, effectiveness according to path is ranked up, the highest path of effectiveness of selection as the primary route of power communication fiber optic network to be evaluated, and select and primary route without the path of shared link as alternate routing。
In step 4.2), described weighs in weighted graph G at r, needed for adopting acyclic m shortest path algorithm to obtain correspondence, m bar shortest path collection Rij (m), m bar shortest path collection Rij (m) between node pair represent that the concrete grammar of the m paths collection from source node i to destination node j is as follows:
(1) source node i shortest path r to destination node j is obtained0, and shortest path r0Put in shortest path collection Rij (m), and labelling shortest path r0It is in shortest path collection Rij (m) next step path to be processed, R time initialij={ r0}；
(2) shortest path collection RijIn total pending path ri=a1→a1→a2→…→axMeter x bar link, adopts " block-reconnect " operation to calculate the path of above-mentioned x bar link successively, it is thus achieved that y bar new route P, wherein x, y should meet y≤x；
(3) shortest path collection R is carried outijSet additive operation R with y bar new route Pij(M)=Rij∪ P, and labelling y bar new route P is untreated, if | | Rij(M) | | >=m, then go to step (4)；Otherwise at shortest path collection RijThe untreated path of middle searching, is labeled as and currently need to process path, go to step (2) afterwards；
(4) by Rij(M) shortest path comprised in returns, and algorithm terminates, and exports shortest path collection Rij(m)。
Power communication fiber optic network reliability consideration method based on composite measure provided by the invention cooks up m bar possible arrangement scheme in once configuration process simultaneously, and measured and light path whole process reliability by differences such as the bandwidth of analysis path collection, time delay, packet loss, attenuation and costs, final acquisition disclosure satisfy that the light path allocation plan of reliability and transmission service quality demand, and provides prioritizing selection sequence。Power communication fiber optic network method based on multi-constraint condition can be used for the planning of power telecom network, construction, Operations, Administration and Maintenance。The network optimization and resource allocation to power optical fiber transmission network, the reliability management level improving power telecom network has certain directive significance。
Accompanying drawing explanation
Fig. 1 is the power communication fiber optic network reliability consideration method flow diagram based on composite measure provided by the invention。
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the power communication fiber optic network reliability consideration method based on composite measure provided by the invention is described in detail。
As it is shown in figure 1, the power communication fiber optic network reliability consideration method based on composite measure provided by the invention includes the following step performed in order:
Step 1) adopt effectiveness, optical fiber attenuation as the measurement index evaluating power communication fiber optic network reliability, strengthen the ruining property of resistance of network with this, improve network survivability and availability；
Step 2) adopt bandwidth, time delay, packet loss, cost as the measurement index evaluating power communication fiber optic network service transmission performance, to meet the transmission service quality demand of different business；
Step 3) from the service data of existing power communication fiber optic network, collect effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost data, and utilize these data to set up the mathematical model of power communication fiber optic network, concurrently set effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and the cost constraints at interior measurement index；
Step 4) utilize the mathematical model of above-mentioned power communication fiber optic network that power communication fiber optic network to be evaluated carries out the configuration of composite measure m optimum circuit。
In step 3) in, described collects effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost data from the service data of existing power communication fiber optic network, and utilize these data to set up the mathematical model of power communication fiber optic network, concurrently setting effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost in the method for interior measurement index constraints is:
Effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost data is collected from the service data of existing power communication fiber optic network, utilize these data to set up the mathematical model of power communication fiber optic network, the equipment in power communication fiber optic network and optical fiber are equivalent to the node in undirected weighted graph G (V, E) and limit, wherein V={v1, v2 ..., vm} represents node set, E={e1, e2 ..., en} represents the set of link ei；According to the relevant parameter affecting power communication fiber optic network, link ei is arranged multiple weighing value, namely in power communication fiber optic network, each link ei has multiple weights, constitute r weight weighted graph G, r is the number of weights in each of the links ei, then power communication fiber optic network is the acyclic path (set of node and link) from source node to destination node；According to effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost, the impact of power communication fiber optic network is set the constraints of above-mentioned each test index simultaneously:
Bandwidth: DK >=BW
Optical fiber attenuation:
Time delay: l≤Dr
Packet loss:
Effectiveness: ACp≥ACr
Cost:
BW, Ar, Dr, pr, ACr, Cr represent the threshold value of bandwidth, optical fiber attenuation, time delay, packet loss, effectiveness, cost respectively。
In step 4) in, power communication fiber optic network to be evaluated is carried out the method for composite measure m optimum circuit configuration and is by the described mathematical model utilizing above-mentioned power communication fiber optic network:
Step 4.1) demand according to power communication fiber optic network to be evaluated, utilize the mathematical model of above-mentioned power communication fiber optic network to determine BW, Ar, Dr, pr, ACr, Cr of power communication fiber optic network to be evaluated；
Step 4.2) in r weight weighted graph G, acyclic m shortest path algorithm is adopted to obtain needed for correspondence m bar shortest path collection Rij (m) between node pair, m bar shortest path collection Rij (m) represents the m paths collection from source node i to destination node j, and concrete grammar is as follows:
(1) source node i shortest path r to destination node j is obtained0, and shortest path r0Put in shortest path collection Rij (m), and labelling shortest path r0It is in shortest path collection Rij (m) next step path to be processed, R time initialij={ r0}；
(2) shortest path collection RijIn total pending path ri=a1→a1→a2→…→axMeter x bar link, adopts " block-reconnect " operation to calculate the path of above-mentioned x bar link successively, it is thus achieved that y bar new route P, wherein x, y should meet y≤x；
(3) shortest path collection R is carried outijSet additive operation R with y bar new route Pij(M)=Rij∪ P, and labelling y bar new route P is untreated, if | | Rij(M) | | >=m, then go to step (4)；Otherwise at shortest path collection RijThe untreated path of middle searching, is labeled as and currently need to process path, go to step (2) afterwards；
(4) by Rij(M) shortest path comprised in returns, and algorithm terminates, and exports shortest path collection Rij(m)；
Step 4.3) to shortest path collection RijM all path computing compound weights in (), carry out ordering selection scheme。Concrete operation method is as follows: calculate r successivelyij∈RijM the bandwidth of (), time delay, packet loss, effectiveness are in interior path metrics instruction, remove the path being unsatisfactory for constraints, and to meeting the path of constraints, effectiveness according to path is ranked up, the highest path of effectiveness of selection as the primary route of power communication fiber optic network to be evaluated, and select and primary route without the path of shared link as alternate routing。
The inventive method is based on the reliability of omnidistance light path and effectiveness mathematical model, the optimization circuit configuration new method of composite measure is proposed, go out to calculate m bar circuit allocation plan in the process that once configures simultaneously, it is easy to the selection of active and standby route, high degree promotes circuit reliability, for network planning, administer and maintain there is more practical significance。
Claims (4)
1. the power communication fiber optic network reliability consideration method based on composite measure, it is characterised in that: the described power communication fiber optic network reliability consideration method based on composite measure includes the following step performed in order:
Step 1) adopt effectiveness, optical fiber attenuation as the measurement index evaluating power communication fiber optic network reliability, strengthen the ruining property of resistance of network with this, improve network survivability and availability；
Step 2) adopt bandwidth, time delay, packet loss, cost as the measurement index evaluating power communication fiber optic network service transmission performance, to meet the transmission service quality demand of different business；
Step 3) from the service data of existing power communication fiber optic network, collect effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost data, and utilize these data to set up the mathematical model of power communication fiber optic network, concurrently set effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and the cost constraints at interior measurement index；
Step 4) utilize the mathematical model of above-mentioned power communication fiber optic network that power communication fiber optic network to be evaluated carries out the configuration of composite measure m optimum circuit。
2. the power communication fiber optic network reliability consideration method based on composite measure according to claim 1, it is characterized in that: in step 3) in, described collects effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost data from the service data of existing power communication fiber optic network, and utilize these data to set up the mathematical model of power communication fiber optic network, concurrently setting effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost in the method for interior measurement index constraints is:
Effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost data is collected from the service data of existing power communication fiber optic network, utilize these data to set up the mathematical model of power communication fiber optic network, the equipment in power communication fiber optic network and optical fiber are equivalent to the node in undirected weighted graph G (V, E) and limit, wherein V={v1, v2 ..., vm} represents node set, E={e1, e2 ..., en} represents the set of link ei；According to the relevant parameter affecting power communication fiber optic network, link ei is arranged multiple weighing value, namely in power communication fiber optic network, each link ei has multiple weights, constitute r weight weighted graph G, r is the number of weights in each of the links ei, then power communication fiber optic network is the acyclic path (set of node and link) from source node to destination node；According to effectiveness, optical fiber attenuation, bandwidth, time delay, packet loss and cost, the impact of power communication fiber optic network is set the constraints of above-mentioned each test index simultaneously:
Bandwidth: DK >=BW
Optical fiber attenuation:
Time delay: l≤Dr
Packet loss:
Effectiveness: ACp≥ACr
Cost:
BW, Ar, Dr, pr, ACr, Cr represent the threshold value of bandwidth, optical fiber attenuation, time delay, packet loss, effectiveness, cost respectively。
3. the power communication fiber optic network reliability consideration method based on composite measure according to claim 1, it is characterized in that: in step 4) in, power communication fiber optic network to be evaluated is carried out the method for composite measure m optimum circuit configuration and is by the described mathematical model utilizing above-mentioned power communication fiber optic network:
Step 4.1) demand according to power communication fiber optic network to be evaluated, utilize the mathematical model of above-mentioned power communication fiber optic network to determine BW, Ar, Dr, pr, ACr, Cr of power communication fiber optic network to be evaluated；
Step 4.2) in r weight weighted graph G, needed for adopting acyclic m shortest path algorithm to obtain correspondence, m bar shortest path collection Rij (m), m bar shortest path collection Rij (m) between node pair represent the m paths collection from source node i to destination node j；
Step 4.3) to shortest path collection RijM all path computing compound weights in (), carry out ordering selection scheme, concrete operation method is as follows: calculate r successivelyij∈RijM the bandwidth of (), time delay, packet loss, effectiveness are in interior path metrics instruction, remove the path being unsatisfactory for constraints, and to meeting the path of constraints, effectiveness according to path is ranked up, the highest path of effectiveness of selection as the primary route of power communication fiber optic network to be evaluated, and select and primary route without the path of shared link as alternate routing。
4. the power communication fiber optic network reliability consideration method based on composite measure according to claim 2, it is characterized in that: in step 4.2), described weighs in weighted graph G at r, needed for adopting acyclic m shortest path algorithm to obtain correspondence, m bar shortest path collection Rij (m), m bar shortest path collection Rij (m) between node pair represent that the concrete grammar of the m paths collection from source node i to destination node j is as follows:
(1) source node i shortest path r to destination node j is obtained0, and shortest path r0Put in shortest path collection Rij (m), and labelling shortest path r0It is in shortest path collection Rij (m) next step path to be processed, R time initialij={ r0}；
(2) shortest path collection RijIn total pending path ri=a1→a1→a2→...→axMeter x bar link, adopts " block-reconnect " operation to calculate the path of above-mentioned x bar link successively, it is thus achieved that y bar new route P, wherein x, y should meet y≤x；
(3) shortest path collection R is carried outijSet additive operation R with y bar new route Pij(M)=Rij∪ P, and labelling y bar new route P is untreated, if | | Rij(M) | | >=m, then go to step (4)；Otherwise at shortest path collection RijThe untreated path of middle searching, is labeled as and currently need to process path, go to step (2) afterwards；
(4) by Rij(M) shortest path comprised in returns, and algorithm terminates, and exports shortest path collection Rij(m)。
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| CN114900233A (en) * | 2022-05-16 | 2022-08-12 | 中国联合网络通信集团有限公司 | Method and device for renovating and managing optical network unit, electronic equipment and medium |
| CN114900233B (en) * | 2022-05-16 | 2023-05-16 | 中国联合网络通信集团有限公司 | Method and device for renovating and managing optical network unit, electronic equipment and medium |
| CN114884569A (en) * | 2022-06-09 | 2022-08-09 | 中国联合网络通信集团有限公司 | Method, device and equipment for determining optical network unit to be remediated and storage medium |
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