CN114553715A - Dynamic evaluation and early warning method for communication ring network - Google Patents

Dynamic evaluation and early warning method for communication ring network Download PDF

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CN114553715A
CN114553715A CN202210070011.1A CN202210070011A CN114553715A CN 114553715 A CN114553715 A CN 114553715A CN 202210070011 A CN202210070011 A CN 202210070011A CN 114553715 A CN114553715 A CN 114553715A
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reliability
optical cable
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evaluation
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CN114553715B (en
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何成章
任小勇
潘豪蒙
毛宾一
叶帆
金兰
陈梁
王成龙
陈丐伦
陈钱伟
周威
张业茂
潘勃利
陈奇
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Yongjia County Power Supply Co Of State Grid Zhejiang Electric Power Co ltd
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Yongjia County Power Supply Co Of State Grid Zhejiang Electric Power Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/14Network analysis or design
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0793Network aspects, e.g. central monitoring of transmission parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795Performance monitoring; Measurement of transmission parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/14Network analysis or design
    • H04L41/142Network analysis or design using statistical or mathematical methods
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/08Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42Loop networks

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Abstract

The invention discloses a dynamic evaluation and early warning method for a communication ring network, which comprises the following steps of evaluating the reliability of a communication optical cable, communication equipment, a communication station and a communication optical path to obtain a corresponding reliability score, and evaluating the reliability grade of the communication ring network between adjacent stations according to the reliability score; establishing corresponding communication maintenance defect elimination plans aiming at different reliability levels; and storing the data acquired by communication overhaul defect elimination into a database, updating the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score, and further evaluating the reliability grade of the communication ring network between adjacent stations. The invention can be used for overhauling and eliminating the shortage of more resources invested into the communication ring network section with lower reliability grade in a targeted and prioritized way, thereby realizing accurate management.

Description

Dynamic evaluation and early warning method for communication ring network
Technical Field
The invention belongs to the field of power equipment, and particularly relates to a dynamic evaluation and early warning method for a communication ring network.
Background
The communication optical cable is composed of a cable core composed of a plurality of optical fibers and an outer protective layer, has the advantages of large transmission capacity, low attenuation, long transmission distance, no electromagnetic interference and low cost, and is widely used for signal transmission of various departments such as telecommunication, electric power, broadcasting and the like. In an electric power system, a communication optical cable, a communication station, communication equipment and a communication optical path form a communication ring network, signal transmission is realized, and in order to prevent the communication ring network from breaking down and causing long-time signal interruption, monitoring equipment is generally arranged in the prior art to monitor the communication ring network in real time, so that problems are found in time, the rush-repair time is reduced, and the signal interruption time is further reduced. However, by adopting such a method, the reliability of each part in the communication ring network cannot be integrally grasped, no priority selection is available for maintenance after a fault occurs, the repair range cannot be timely reduced, meanwhile, the whole ring network circuit is maintained according to the same standard in the daily communication repair and repair process, and the targeted maintenance cannot be performed according to the actual situation, so that a large amount of maintenance time is wasted for the line segments with infrequent faults, and the line segments with high faults cannot be comprehensively and carefully examined. In summary, the existing monitoring method adopted by the communication ring network in the operation and maintenance stage cannot achieve a better effect, and cannot distinguish according to the reliability of the communication ring network to achieve the purpose of precise management.
Disclosure of Invention
The invention aims to provide a dynamic evaluation and early warning method for a communication ring network, which can effectively solve the problem that in the prior art, each line segment in the communication ring network cannot be distinguished according to the reliability degree so as to be managed accurately.
In order to solve the technical problems, the invention adopts the following technical scheme: the dynamic evaluation and early warning method for the communication ring network comprises the following steps,
s100: evaluating the reliability of the communication optical cable to obtain a reliability score of the communication optical cable;
s200: reliability evaluation is carried out on the communication equipment to obtain a reliability score of the communication equipment;
s300: reliability evaluation is carried out on the communication sites to obtain reliability scores of the communication sites;
s400: reliability evaluation is carried out on the communication light path to obtain a communication light path reliability score;
s500: storing the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score in a database, and performing reliability grade evaluation on a communication ring network between adjacent stations according to the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score;
s600: establishing corresponding communication maintenance defect elimination plans aiming at different reliability levels;
s700: and storing the data acquired by communication overhaul defect elimination into a database, updating the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score, and further evaluating the reliability grade of the communication ring network between adjacent stations.
Preferably, in step S100, reliability evaluation is performed on the communication optical cable from four aspects of the number of accumulated faults of the communication optical cable within two years, the high-reliability ratio of the communication optical cable, the number of hidden danger points of the communication optical cable, and the operating environment of the communication optical cable, and the reliability score of the communication optical cable is obtained
Figure RE-GDA0003578412080000021
Figure RE-GDA0003578412080000022
Wherein n represents the n communication optical cable marked in the communication ring network, the counter (t) function is used for calculating the accumulated failure times of the n communication optical cable in two years, the F (n) function is used for calculating the replacement rate of the rat-proof optical cable of the n communication optical cable, the O (n) function is used for calculating the OPGW optical cable proportion of the n communication optical cable, the G (n) function is used for calculating the pipeline non-rat-proof optical cable proportion of the n communication optical cable, the Y (n) function is used for calculating the operation environment grading score of the n communication optical cable, the C represents the reliability basic score of the communication optical cable, the C is a constant, the H (h) function is used for identifying the hidden danger point of the n communication optical cable, and the J (a) represents the hidden danger point grading score of the n communication optical cable.
Preferably, in step S200, the hidden danger of the communication device is discovered through communication overhaul defect elimination, the hidden danger of the communication device is classified according to three-level hidden danger classification, the hidden danger of the communication device is graded through the grade classification, and the reliability grade of the communication device is equal to the basic reliability grade of the communication device minus the hidden danger grade.
Preferably, in step S300, the reliability of the communication station is evaluated by comparing scores of three communication devices, i.e., the transmission device, the communication power supply, and the storage battery in the communication station, and the communication station reliability score Ps ═ Min (Pt, Pe, Pa) is set for each communication station
Figure RE-GDA0003578412080000031
Figure RE-GDA0003578412080000032
Wherein Pt is the dynamic grade of the reliability of the transmission equipment, Pe is the dynamic grade of the reliability of the communication power supply, and Pa is the dynamic grade of the reliability of the storage battery.
Preferably, the communication optical path reliability score in step 400 is Pr,
Figure RE-GDA0003578412080000033
wherein
Figure RE-GDA0003578412080000034
Wherein
Pst represents the dynamic rating for the reliability of the communications lightpath "source" communications site, Psr represents the dynamic rating for the reliability of the communications lightpath "sink" communications site, R represents the dynamic rating set for the reliability of the communications lightpath routed over the communications fiber optic cables, wherein plm represents the mth fiber optic cable route of the communications lightpath,
Figure RE-GDA0003578412080000041
the function is used for calculating attenuation deviation of the communication optical path, line (r) represents the total length of the optical cable route, Atten (r) function is used for calculating attenuation value of the communication optical path, Cr represents a reasonable attenuation base factor of the communication optical cable, Cq represents an attenuation weight factor of the communication optical path, and Cr and Cq are constants.
Preferably, the reliability rating includes three ratings of healthy, sub-healthy, and unhealthy.
Preferably, the reliability grade evaluation is displayed to a worker through a display screen, the communication ring network in the health grade evaluation is displayed in green, the communication ring network in the sub-health grade evaluation is displayed in yellow, and the communication ring network in the unhealthy grade evaluation is displayed in red.
Compared with the prior art, the invention has the following beneficial effects: the communication ring network is divided into four parts of a communication optical cable, communication equipment, a communication station and a communication optical path in terms of space and function, reliability evaluation is carried out on the four parts respectively, and accordingly a communication optical cable reliability score, a communication equipment reliability score, a communication station reliability score and a communication optical path reliability score are obtained correspondingly. According to the value of the score, the reliability grade evaluation can be carried out on the communication looped network, so that corresponding communication maintenance and defect elimination plans can be formulated for the communication looped networks in different sections according to different reliability grades, more resources can be put into the communication looped network sections with lower reliability grades to be maintained and eliminated in a targeted and prioritized manner, and accurate management is achieved. The communication ring network with lower reliability grade can be early warned in advance, the running state of the communication ring network is focused on, the resources such as the existing manpower and material resources are more reasonably allocated, the resource waste is reduced, and the communication ring network is more accurately managed. And the data generated in the process of communication maintenance and deletion can be stored in a database to update the scores, so that the dynamism of the reliability grade evaluation of the communication ring network is realized, and the improvement of the accurate management level of the communication ring network is effectively promoted.
Detailed Description
In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. In addition, the meaning of "a plurality" in the present invention is at least two, e.g., two, three, etc., unless specifically limited otherwise.
Example (b): the dynamic evaluation and early warning method for the communication ring network comprises the following steps,
s100: evaluating the reliability of the communication optical cable to obtain a reliability score of the communication optical cable;
s200: reliability evaluation is carried out on the communication equipment to obtain a reliability score of the communication equipment;
s300: reliability evaluation is carried out on the communication sites to obtain reliability scores of the communication sites;
s400: reliability evaluation is carried out on the communication light path to obtain a communication light path reliability score;
s500: storing the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score in a database, and evaluating the reliability grade of a communication ring network between adjacent stations according to the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score;
s600: establishing corresponding communication maintenance defect elimination plans aiming at different reliability levels;
s700: and storing the data acquired by communication overhaul defect elimination into a database, updating the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score, and further evaluating the reliability grade of the communication ring network between adjacent stations.
The communication ring network is divided into four parts of a communication optical cable, communication equipment, a communication station and a communication optical path in terms of space and function, reliability evaluation is carried out on the four parts respectively, and accordingly a communication optical cable reliability score, a communication equipment reliability score, a communication station reliability score and a communication optical path reliability score are obtained correspondingly. According to the grading value, the reliability grade evaluation can be carried out on the communication ring network, so that corresponding communication maintenance and defect elimination plans can be formulated for the communication ring networks of different sections according to different reliability grades, more resources can be put into the communication ring network sections with lower reliability grades to be maintained and eliminated in a targeted and prioritized manner, and accurate management is achieved. The early warning can be sent out in advance for the communication ring network with lower reliability grade, the operation state of the communication ring network is focused, the resources such as the existing manpower and material resources are more reasonably allocated, the resource waste is reduced, and the communication ring network is more accurately managed. And the data generated in the process of communication maintenance and deletion can be stored in a database to update the scores, so that the dynamism of the reliability grade evaluation of the communication ring network is realized, and the improvement of the accurate management level of the communication ring network is effectively promoted.
Specifically, in step S100, reliability evaluation is performed on the communication optical cable from four aspects of the number of accumulated failures of the communication optical cable within two years, the high-reliability ratio of the communication optical cable, the number of hidden danger points of the communication optical cable, and the operating environment of the communication optical cable. The fault rate condition of the communication optical cable is a data index which most intuitively shows the reliability of the communication optical cable, and the possibility that the communication optical cable is damaged by external factors such as small animal bite, vehicle hook-off, construction damage and the like can be objectively measured through the dimension of accumulating the fault times of the communication optical cable in two years, so that the reliability degree of the communication optical cable is reflected. The communication optical cable can be divided into an OPGW optical cable, an ADSS optical cable, a common overhead optical cable, a pipeline optical cable and the like according to types, and in some areas, the communication optical cable passes through a forest due to the fact that mountainous areas are located, and the communication optical cable is frequently bitten by small animals to damage the communication optical cable, so that the damage of the small animals can be effectively avoided through the rat-proof optical cable, meanwhile, the occurrence of external force damage events can be effectively reduced through the pipeline optical cable, the OPGW optical cable, the rat-proof optical cable and the pipeline optical cable are communication optical cables with high reliability, and the reliability degree of the communication optical cable can be objectively measured through the high-reliability optical cable. Through daily routing inspection of members of the team, the found hidden dangers of the communication optical cable, the communication sites and the communication equipment are recorded in time, a hidden danger library is established, the positions and the contents of the hidden dangers are perfected, three-level hidden danger classification is established according to 'emergency, important and general', and the reliability degree of the communication optical cable can be well measured in a visitor place by combining the hidden dangers found through routing inspection through the hidden danger library. The operation environment of the communication optical cable has very important influence on the reliability and the operation and maintenance difficulty of the communication optical cable, if the operation environment is a mountainous area with dense trees, the communication optical cable is easy to be bitten by small animals and has poor reliability, and the operation environment of the communication optical cable can objectively measure the reliability degree of the communication optical cable.
Reliability scoring for communications cables in this embodiment
Figure RE-GDA0003578412080000071
Figure RE-GDA0003578412080000072
The function is used for calculating the OPGW (optical fiber composite overhead ground wire) optical cable proportion of the nth communication optical cable, the function is used for calculating the pipeline non-rat-proof optical cable proportion of the nth communication optical cable, the function is used for calculating the operating environment grading score of the nth communication optical cable, the function is C representing the reliability basic score of the communication optical cable, the function is a constant, the function is H (h) used for identifying the hidden danger point of the nth communication optical cable, and the function is J (a) representing the hidden danger point grading score of the nth communication optical cable.
Specifically, in step S200, hidden dangers of the communication device are discovered through communication overhaul defect elimination, the hidden dangers of the communication device are classified according to the three-level hidden danger classification, the hidden dangers of the communication device are scored through the grade classification, and the reliability score of the communication device is equal to the basic reliability score of the communication device minus the hidden danger score.
Specifically, in step S300, the reliability of the communication station is evaluated by comparing the scores of three communication devices, i.e., the transmission device, the communication power supply, and the storage battery, in the communication station, which mainly includes communication devices such as "the transmission device, the communication power supply, the storage battery, the data network device, and the access device", wherein the station is configured to perform the reliability evaluationThe reliability of transmission mainly depends on the robustness of 'transmission equipment, communication power supply and storage battery' in the station, the score of the transmission reliability of the communication station is limited by the 'bottleneck reliability score' of 'transmission equipment, communication power supply and storage battery' in the station, so the score of the reliability of the communication station Ps is Min (Pt, Pe, Pa), wherein
Figure RE-GDA0003578412080000081
Wherein Pt is the dynamic grade of the reliability of the transmission equipment, Pe is the dynamic grade of the reliability of the communication power supply, and Pa is the dynamic grade of the reliability of the storage battery.
In the communication ring network, the reliability of a communication optical path is the comprehensive reflection of the transmission reliability of communication optical cables and source-destination communication stations where the optical path passes, any unreliable optical cable or unreliable transmission capability of the source-destination station brings hidden troubles to the healthy operation of the transmission optical path, the total optical power attenuation value of the optical cable through which the optical path passes is within a reasonable range, and if the optical path attenuation value is too large, the operation of the optical path is hidden. And calculating the bottleneck score (the minimum score of the communication optical cable passing through) of the optical cable according to the reliability score data of the bottom layer optical cable resources by taking the optical cable routing path of the optical path as a basis, and comprehensively evaluating the reliability state of the communication stations at two ends of the optical path and the attenuation of the optical path. The dynamic evaluation of the optical path reliability is the smaller value of the bottleneck score of the optical cable route and the dynamic evaluation of the transmission reliability of the 'source-destination' communication station, the influence of the attenuation deviation degree of the optical path is considered on the basis, the health state of the optical path is displayed according to the reliability evaluation of the optical path, specifically, the reliability evaluation of the communication optical path in the step 400 is Pr,
Figure RE-GDA0003578412080000091
wherein,
Figure RE-GDA0003578412080000092
wherein,
pst represents the reliability dynamic score of the communication station of the communication light path source, Psr represents the communicationDynamic scoring of reliability of optical path "host" communication sites, R represents a dynamic set of reliability scores for communication optical paths routed over communication fiber optic cables, where plm represents the mth fiber optic cable route of a communication optical path,
Figure RE-GDA0003578412080000093
the function is used for calculating attenuation deviation of the communication optical path, line (r) represents the total length of the optical cable route, Atten (r) function is used for calculating attenuation value of the communication optical path, Cr represents a reasonable attenuation base factor of the communication optical cable, Cq represents an attenuation weight factor of the communication optical path, and Cr and Cq are constants.
The reliability rating evaluation in the present embodiment includes three ratings of healthy, sub-healthy, and unhealthy. In order to facilitate visual and clear display, in the embodiment, the reliability grade evaluation is displayed to the working personnel through the display screen, the communication looped network in the health grade evaluation is displayed in green, the communication looped network in the sub-health grade evaluation is displayed in yellow, and the communication looped network in the unhealthy grade evaluation is displayed in red.
The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.

Claims (7)

1. A dynamic evaluation and early warning method for a communication ring network is characterized in that: comprises the following steps of (a) preparing a solution,
s100: evaluating the reliability of the communication optical cable to obtain a reliability score of the communication optical cable;
s200: reliability evaluation is carried out on the communication equipment to obtain a reliability score of the communication equipment;
s300: reliability evaluation is carried out on the communication sites to obtain reliability scores of the communication sites;
s400: reliability evaluation is carried out on the communication light path to obtain a communication light path reliability score;
s500: storing the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score in a database, and performing reliability grade evaluation on a communication ring network between adjacent stations according to the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score;
s600: establishing corresponding communication maintenance defect elimination plans aiming at different reliability levels;
s700: and storing the data acquired by communication overhaul defect elimination into a database, updating the communication optical cable reliability score, the communication equipment reliability score, the communication station reliability score and the communication light path reliability score, and further evaluating the reliability grade of the communication ring network between adjacent stations.
2. The dynamic evaluation and early warning method for a communication ring network as claimed in claim 1, wherein: in step S100, reliability evaluation is carried out on the communication optical cable from four aspects of accumulated failure times of the communication optical cable within two years, high-reliability communication optical cable ratio, number of hidden danger points of the communication optical cable and operation environment of the communication optical cable, and the reliability evaluation of the communication optical cable is carried out
Figure FDA0003481747350000011
Figure FDA0003481747350000012
Wherein n represents the n communication optical cable marked in the communication ring network, the counter (t) function is used for calculating the accumulated failure times of the n communication optical cable in two years, the F (n) function is used for calculating the replacement rate of the rat-proof optical cable of the n communication optical cable, the O (n) function is used for calculating the OPGW optical cable proportion of the n communication optical cable, the G (n) function is used for calculating the pipeline non-rat-proof optical cable proportion of the n communication optical cable, the Y (n) function is used for calculating the operation environment grading score of the n communication optical cable, the C represents the reliability basic score of the communication optical cable, the C is a constant, the H (h) function is used for identifying the hidden danger point of the n communication optical cable, and the J (a) represents the hidden danger point grading score of the n communication optical cable.
3. The dynamic evaluation and early warning method for a communication ring network as claimed in claim 2, wherein: in step S200, the hidden danger of the communication device is discovered through communication overhaul defect elimination, the hidden danger of the communication device is classified according to three-level hidden danger classification, the hidden danger of the communication device is graded through the grade classification, and the reliability grade of the communication device is equal to the basic reliability grade of the communication device minus the hidden danger grade.
4. The dynamic evaluation and early warning method for a communication ring network as claimed in claim 3, wherein: in step S300, the reliability of the communication station is evaluated by comparing the scores of the three communication devices, i.e., the transmission device, the communication power supply, and the battery in the communication station, and the communication station reliability score Ps ═ Min (Pt, Pe, Pa) is calculated
Figure FDA0003481747350000021
Figure FDA0003481747350000022
Wherein Pt is the dynamic grade of the reliability of the transmission equipment, Pe is the dynamic grade of the reliability of the communication power supply, and Pa is the dynamic grade of the reliability of the storage battery.
5. The dynamic evaluation and early warning method for a communication ring network as claimed in claim 4, wherein: the communication optical path reliability score in step 400 is Pr,
Figure FDA0003481747350000023
wherein
Figure FDA0003481747350000024
Wherein
Pst represents a dynamic reliability score of a communication optical path 'source' communication station, Psr represents a dynamic reliability score of a communication optical path 'destination' communication station, R represents a dynamic reliability score set of communication optical paths routed through communication optical cables, wherein plm represents a communication optical pathThe mth optical cable of (a) is routed,
Figure FDA0003481747350000025
the function is used for calculating attenuation deviation of the communication optical path, line (r) represents the total length of the optical cable route, Atten (r) function is used for calculating attenuation value of the communication optical path, Cr represents a reasonable attenuation base factor of the communication optical cable, Cq represents an attenuation weight factor of the communication optical path, and Cr and Cq are constants.
6. The dynamic evaluation and early warning method for a communication ring network as claimed in claim 1, wherein: the reliability rating evaluation comprises three grades of health, sub-health and unhealthy.
7. The dynamic evaluation and early warning method for a communication ring network as claimed in claim 6, wherein: and the reliability grade evaluation is displayed to the staff through a display screen, the communication looped network in the health grade evaluation is displayed as green, the communication looped network in the sub-health grade evaluation is displayed as yellow, and the communication looped network in the unhealthy grade evaluation is displayed as red.
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