CN114285789A - Method for automatically generating service grooming scheme in power communication network - Google Patents

Method for automatically generating service grooming scheme in power communication network Download PDF

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Publication number
CN114285789A
CN114285789A CN202111525609.7A CN202111525609A CN114285789A CN 114285789 A CN114285789 A CN 114285789A CN 202111525609 A CN202111525609 A CN 202111525609A CN 114285789 A CN114285789 A CN 114285789A
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service
reachable
reachable paths
station
calculation
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张艳
姜华
丛犁
李青春
黄成斌
李佳
胡杨
蒋兰兰
刘明
付静洋
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Nari Information and Communication Technology Co
Information and Telecommunication Branch of State Grid Jilin Electric Power Co Ltd
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Nari Information and Communication Technology Co
Information and Telecommunication Branch of State Grid Jilin Electric Power Co Ltd
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Abstract

The invention discloses a method for automatically generating a business grooming scheme in a power communication network, which belongs to the technical field of power communication, and comprises the steps of reading starting and stopping sites of mode routing and parameter information thereof; searching reachable paths in the current routing topology according to the starting-stopping stations and the parameter information thereof, and obtaining the reachable paths and the operation parameters of each station in the reachable paths; according to the operation parameters of each station in the reachable path, analyzing and evaluating the resource load and the availability to obtain available resources and further obtain an available route; and performing service importance weighted calculation on the reachable paths based on the obtained available routes, sequencing the reachable paths according to weight calculation results after calculation, and giving the reachable paths meeting set conditions according to the route length or the number of the jump points. The invention can avoid or reduce the problem of overlarge resource load of the selected route in the service dredging process, reduce the network operation safety risk and improve the reliability of the communication network and the utilization rate of communication resources.

Description

Method for automatically generating service grooming scheme in power communication network
Technical Field
The invention belongs to the technical field of power communication, and particularly relates to a method for automatically generating a service grooming scheme in a power communication network.
Background
With the continuous deepening of the construction of the smart power grid, the power service carried in the power communication network is an important guarantee for the safe, reliable and stable operation of the power system network, and has high requirements on real-time performance, safety and reliability. At present, once a power communication network fails, a power automatic scheduling system is generally used for searching and replacing reachable routes, and then a user selects one of the roundabout routes according to other considered factors, the path searching modes provided by the system can be divided into two types, one type is automatic channel serial connection, the function is mainly applied to channel serial connection of SDH (synchronous digital hierarchy), and the source-to-destination serial connection is carried out according to the topological connection relation between network element internal crossing and network element; the other type is channel reachable path searching, the function is based on the topological connection relation between network elements, does not require available intersection in the network elements, and searches for a topological connection reachable path from a target starting point to a target end point. The routes selected by the two route searching modes can concentrate a large amount of services into certain links, so that the links become high-risk links and the network operation risk is increased; it is not beneficial to improve the reliability of the communication network and the utilization rate of the communication resources.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a method for automatically generating a service grooming scheme in an electric power communication network, which can avoid or reduce the problem of overlarge resource load of a route selected in the service grooming process, reduce the network operation safety risk, and improve the reliability of the communication network and the utilization rate of communication resources.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a method for automatically generating a traffic grooming scheme, comprising: reading starting and stopping sites of the mode route and parameter information thereof; searching reachable paths in the current routing topology according to the starting-stopping stations and the parameter information thereof, and obtaining the reachable paths and the operation parameters of each station in the reachable paths; according to the operation parameters of each station in the reachable path, analyzing and evaluating the resource load and the availability to obtain available resources and further obtain an available route; and performing service importance weighted calculation on the reachable paths based on the obtained available routes, sequencing the reachable paths according to weight calculation results after calculation, and giving the reachable paths meeting set conditions according to the route length or the number of the jump points.
Further, the start-stop station and its parameter information include start station, start device, start port, stop station, stop device, stop port and rate.
Further, the parameter information further includes optional parameters, and the optional parameters include one or more of a mandatory station, a cable type, and a laying mode.
Further, the operation parameters of each station in the reachable path include alarm information, fault information, overhaul information, capacity, bandwidth occupancy and cross occupancy of each station.
Further, the analyzing and evaluating the resource load and availability according to the operating parameters of each station in the alternative path includes: setting load balance and availability model parameters and thresholds including fiber core occupancy rate and equipment capacity; and screening out available resources through load balancing and availability model calculation analysis, and further obtaining available routes.
Further, the service importance weighting calculation of the reachable path includes performing service importance weighting calculation of the reachable path obtained by analysis in combination with a service importance weighting coefficient; the service importance weighting coefficient is obtained by establishing a multilevel analysis model through an analytic hierarchy process to calculate the weight, and dividing the actual condition of the power service into three levels by considering the actual condition of the power service; the target layer at the top layer corresponds to the service importance, namely the target quantity; the middle layer corresponds to a rule layer which mainly comprises three indexes of real-time performance, reliability and safety, and the three indexes are used for evaluating the service importance; the bottom layer is an object layer and mainly comprises five services, namely an automation service, a stable control service, a relay protection service, a scheduling service and other services; and combining the service importance hierarchical structure model and expert experience information to form a pair comparison matrix for service importance evaluation, and calculating to obtain a service importance weighting coefficient.
Further, the step of providing the reachable path meeting the set condition according to the routing length or the number of the hop points comprises the step of screening out the path with the shortest routing length or the fewest hop points, and then automatically generating a service grooming scheme according to the selected route.
Compared with the prior art, the invention has the following beneficial effects: the reachable path searching is carried out in the current routing topology according to the start-stop station and the parameter information thereof, the resource load and the availability analysis and evaluation are carried out according to the operation parameters of all stations in the reachable path, the service importance weighting calculation is carried out on the reachable path, the reachable path is sorted according to the weight calculation result after the calculation, and the reachable path which meets the set condition is given according to the routing length or the number of the jump nodes; the problem of overlarge resource load of the route selected in the service dredging process can be avoided or reduced, the network operation safety risk is reduced, and the reliability of the communication network and the utilization rate of communication resources are improved.
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Fig. 1 is a schematic main flow chart of a method for automatically generating a traffic grooming scheme in an electric power communication network according to an embodiment of the present invention;
fig. 2 is a schematic main flow chart of an optical path traffic grooming scheme in an embodiment of the present invention;
fig. 3 is a schematic main flow chart of a channel traffic grooming scheme in an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, a method for automatically generating a traffic grooming scheme in a power communication network includes: reading starting and stopping sites of the mode route and parameter information thereof; searching reachable paths in the current routing topology according to the starting-stopping stations and the parameter information thereof, and obtaining the reachable paths and the operation parameters of each station in the reachable paths; according to the operation parameters of each station in the reachable path, analyzing and evaluating the resource load and the availability to obtain available resources and further obtain an available route; and performing service importance weighted calculation on the reachable paths based on the obtained available routes, sequencing the reachable paths according to weight calculation results after calculation, and giving the reachable paths meeting set conditions according to the route length or the number of the jump points.
Reading starting and stopping sites of the mode route and parameter information thereof; the system comprises parameters such as an initial station, initial equipment, an initial port, a termination station, termination equipment, a termination port, a rate and the like, and a user can select to add optional parameters such as a necessary station, a type of optical cable, a laying mode and the like.
Searching reachable paths in the current routing topology according to the starting-stopping stations and the parameter information thereof, and obtaining the reachable paths and the operation parameters of each station in the reachable paths; and the operation parameters of each station in the reachable path comprise availability evaluation information such as alarm information, fault information, overhaul information, capacity, bandwidth occupancy rate, cross occupancy rate and the like of each station, resource load and availability are analyzed and evaluated according to the operation parameters of each station in the reachable path, available resources are screened out through load balancing and availability model calculation and analysis, and then the available route is obtained.
According to the operation parameters of each site in the alternative path, analyzing and evaluating the resource load and the availability, wherein the method comprises the following steps: setting load balance and availability model parameters and thresholds including fiber core occupancy rate and equipment capacity; and screening out available resources through load balancing and availability model calculation analysis, and further obtaining available routes.
Performing service importance weighted calculation on the reachable paths, wherein the service importance weighted calculation is performed on the reachable paths obtained by analysis by combining with the service importance weighted coefficients; the service importance weighting coefficient is obtained by establishing a multilevel analysis model through an analytic hierarchy process to calculate the weight, and dividing the actual condition of the power service into three levels by considering the actual condition of the power service; the target layer at the top layer corresponds to the service importance, namely the target quantity; the middle layer corresponds to a rule layer which mainly comprises three indexes of real-time performance, reliability and safety, and the three indexes are used for evaluating the service importance; the bottom layer is an object layer and mainly comprises five services, namely an automation service, a stable control service, a relay protection service, a scheduling service and other services; and combining the service importance hierarchical structure model and expert experience information to form a pair comparison matrix for service importance evaluation, and calculating to obtain a service importance weighting coefficient.
As shown in fig. 2, when a fault occurs in a certain optical cable during operation of a communication network, an optical path may be interrupted, which may affect a service, and after the fault occurs, the technology in this embodiment is used to perform intelligent search for a substitute route, so as to provide an optimal optical path service grooming scheme for communication operators.
The method comprises the following specific steps:
1) setting an initial site, initial equipment, an initial port, a termination site, termination equipment, a termination port and a rate; the starting site and the terminating site are indispensable items.
2) Optional parameters are set:
(1) the type of the optical cable: OPGW, ADSS, ordinary optical cable;
(2) the laying mode is as follows: overhead, direct-buried, pipeline, underwater;
(3) a must pass node: nodes through which the optical path must pass can be set and realized in a mode of popping up a tree with check boxes, wherein the nodes comprise sites and optical cables and support multiple selection. A station or cable, if in a must-pass node, cannot appear in the must-pass node;
(4) not necessarily via a node: nodes which cannot be passed by the optical path can be set to be realized in a mode of popping up a tree with check boxes, wherein the nodes comprise sites and optical cables and support multi-selection. A station or cable, if in a must-pass node, cannot appear in the must-pass node;
(5) the jump point is the smallest or the length is the shortest.
3) Setting parameters and threshold values of a load availability analysis model, wherein the conditions mainly comprise:
(1) occupancy rate of fiber core: the interval of occupancy may be set, for example, 0% -60%;
(2) equipment capacity: a threshold value may be set, for example 85%.
4) Setting service importance weighting rule parameters, which mainly comprise:
(1) and (4) service type: automation services, stability control services, relay protection services, scheduling services and other services;
(2) scheduling grade: first-level network service, second-level network service, third-level network service, fourth-level network service and fifth-level network service.
5) And automatically calculating the path according to the input information and displaying the path result.
When the current optical cable is overhauled or will be overhauled recently, the optical cable is automatically placed into a necessary unnecessary node; when the current optical cable has a fault, the optical cable is automatically placed into the unnecessary node.
6) The user can manually adjust the path according to the requirement, and the automatically generated path can be manually cleared without passing through the node.
7) And automatically generating an optical path grooming scheme after selecting the path.
8) The path schemes output by the optical path grooming are 10 at most, and meanwhile, the scheme results are displayed in a list form, wherein the list display content comprises the following steps: sequence number, route description, length (km), number of nodes, and fiber core vacancy;
(1) the format of the route description is: site 1, site 2, site 3;
(2) the length is the sum of the lengths of each section of optical cable;
(3) the number of nodes is the total number of stations to be passed (the joint boxes are removed);
(4) the fiber core is free (showing that the value of the residual fiber core/the total fiber core is the minimum value of the fiber core of the optical cable section of the path/the total fiber core of the optical cable section).
As shown in fig. 3, when a certain device fails during the operation of the communication network, a channel is interrupted, which may affect the service, and after the failure occurs, the technology of the present invention is used to perform intelligent search of the alternative route, so as to provide an optimal channel service grooming scheme for communication operators.
The method comprises the following specific steps:
1) setting an initial device, an initial port, a termination device, a termination port and a rate. The starting device and the terminating device are indispensable items.
2) Optional parameters are set:
(1) a must pass node: the nodes through which the channel must pass can be set and realized in a mode of popping up a tree with check boxes, wherein the nodes comprise equipment and optical paths and support multiple selection. If a device or light path is in the unnecessary node, the device or light path cannot be present in the unnecessary node;
(2) not necessarily via a node: nodes which cannot be passed by the channel can be set and are realized in a mode of popping up a tree with check boxes, and the nodes comprise equipment and light paths and support multiple selection. A device or lightpath cannot appear in a must-pass node if it is in the must-pass node.
3) Setting parameters and threshold values of a load availability analysis model, wherein the conditions mainly comprise:
(1) equipment capacity: a threshold value may be set, for example 85%;
(2) bandwidth occupancy: the interval of occupancy may be set, for example, 0% -60%;
(3) start-stop device cross occupancy: the occupancy rate interval can be set, for example, from 0% to 60%, and the values are: start-stop device occupied cross/total cross x 100%.
4) Setting service importance weighting rule parameters, which mainly comprise:
(1) and (4) service type: automation services, stability control services, relay protection services, scheduling services and other services;
(2) scheduling grade: first-level network service, second-level network service, third-level network service, fourth-level network service and fifth-level network service.
5) And automatically calculating the path according to the input information and displaying the path result.
When the optical ports related to the current equipment and the optical path are overhauled or are overhauled recently, the equipment and the optical path are automatically placed into nodes which are not needed to be overhauled; when the current equipment and the optical path have faults, the equipment and the optical path are automatically put into the unnecessary nodes.
6) The user can manually adjust the path according to the requirement, and the automatically generated path can be manually cleared without passing through the node.
7) And automatically generating an optical path grooming scheme after selecting the path.
8) The path schemes output by the channel grooming are at most 20, and meanwhile, the scheme results are displayed in a list form, wherein the list display content comprises: sequence number, route description, bandwidth surplus, node number;
(1) the format of the route description is: the starting device (slot number-port number) — > device 2 — > the terminating device (slot number-port number), if the ports of the starting device and the terminating device are not selected, the parenthesized content (including parenthesis) is not displayed;
(2) the bandwidth is left;
(3) the number of nodes is the total number of devices that need to be passed through.
According to the embodiment, parameters such as the load, the occupancy rate, the alarm, the fault influence state, whether to overhaul and whether to pass through nodes and the like of the power communication network resource are combined with a power communication network resource correlation model to analyze and evaluate the load availability of the power communication network resource, guarantee the service distribution load balance of the power communication network, perform hierarchical weighted calculation on the importance of the power communication network service, analyze available light paths or channel paths, automatically acquire the optimal service grooming scheme with the fewest hop points or the shortest paths, improve the resource utilization rate, enhance the service control capacity in the fault processing of the power communication network, provide solid support for the stable operation of the communication service of the power communication network, and have good application prospects.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A method for automatically generating a traffic grooming scheme, comprising:
reading starting and stopping sites of the mode route and parameter information thereof;
searching reachable paths in the current routing topology according to the starting-stopping stations and the parameter information thereof, and obtaining the reachable paths and the operation parameters of each station in the reachable paths;
according to the operation parameters of each station in the reachable path, analyzing and evaluating the resource load and the availability to obtain available resources and further obtain an available route;
and performing service importance weighted calculation on the reachable paths based on the obtained available routes, sequencing the reachable paths according to weight calculation results after calculation, and giving the reachable paths meeting set conditions according to the route length or the number of the jump points.
2. The method of claim 1, wherein the start-stop site and its parameter information comprise start site, start device, start port, stop site, stop device, stop port and rate.
3. The method of automatically generating a traffic grooming plan in accordance with claim 1, wherein the parameter information further comprises optional parameters including one or more of mandatory sites, cable types, and cabling.
4. The method of claim 1, wherein the operation parameters of each station in the reachable path comprise alarm information, fault information, overhaul information, capacity, bandwidth occupancy, and cross occupancy of each station.
5. The method of claim 1, wherein the analyzing and evaluating resource load and availability according to the operation parameters of each station in the alternative path comprises: setting load balance and availability model parameters and thresholds including fiber core occupancy rate and equipment capacity; and screening out available resources through load balancing and availability model calculation analysis, and further obtaining available routes.
6. The method according to claim 1, wherein the performing a service importance weighting calculation on the reachable paths includes performing a service importance weighting calculation on the reachable paths obtained by analysis in combination with a service importance weighting coefficient; the service importance weighting coefficient is obtained by establishing a multilevel analysis model through an analytic hierarchy process to calculate the weight, and dividing the actual condition of the power service into three levels by considering the actual condition of the power service; the target layer at the top layer corresponds to the service importance, namely the target quantity; the middle layer corresponds to a rule layer which mainly comprises three indexes of real-time performance, reliability and safety, and the three indexes are used for evaluating the service importance; the bottom layer is an object layer and mainly comprises five services, namely an automation service, a stable control service, a relay protection service, a scheduling service and other services; and combining the service importance hierarchical structure model and expert experience information to form a pair comparison matrix for service importance evaluation, and calculating to obtain a service importance weighting coefficient.
7. The method according to claim 1, wherein the step of providing the reachable paths meeting the set conditions according to the routing length or the number of the hops comprises screening out the path with the shortest routing length or the fewest hops, and then automatically generating the traffic grooming scheme according to the selected route.
CN202111525609.7A 2021-12-14 2021-12-14 Method for automatically generating service grooming scheme in power communication network Pending CN114285789A (en)

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Cited By (1)

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CN115842584A (en) * 2022-11-11 2023-03-24 国网安徽省电力有限公司合肥供电公司 Method and system for bypassing power optical path protection service

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