EDFA optical line amplification monitoring method and system based on data analysis

Abstract

The invention belongs to the technical field of line monitoring, and discloses an EDFA optical line amplification monitoring method and system based on data analysis, and the method comprises the steps: collecting optical layer parameters, electric layer parameters and environmental parameters of an EDFA in real time, unifying the parameters obtained under different measurement conditions to the same scale, and carrying out the data analysis. Then the health states of an optical layer, an electric layer and an environment layer of the EDFA are analyzed based on the optical layer parameters, the electric layer parameters and the environment parameters of the EDFA respectively, the potential health state of the EDFA is analyzed by integrating the optical layer parameters, the electric layer parameters and the environment parameters of the EDFA, when it is judged that the health state of the EDFA is abnormal, an early warning signal is sent out immediately, the fault type and reason are further analyzed, and the EDFA is judged to be normal. When it is judged that the health state of the EDFA is normal, the future state of the EDFA is predicted, the performance state of the EDFA can be comprehensively monitored in real time, the fault type and reason can be accurately diagnosed, and the reliability and stability of an optical communication system are effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of line monitoring, and particularly relates to a method and system for monitoring EDFA optical line amplification based on data analysis. Background Art

[0002] In modern optical communication systems, as a key optical line amplification device, EDFA (erbium-doped fiber amplifier) is widely used in long-distance and high-capacity optical fiber transmission networks. It can effectively compensate for signal attenuation during optical fiber transmission and improve the transmission distance and quality of optical signals. However, with the continuous expansion of the scale of optical communication networks and the increasing growth of service requirements, the performance stability and reliability of EDFA face severe challenges.

[0003] Currently, traditional EDFA monitoring methods mainly judge the health status of EDFA by comparing the monitored physical quantities with thresholds. However, the EDFA line is relatively complex, with three levels: the optical layer, the electrical layer, and the environmental layer. Therefore, these methods have certain limitations and cannot comprehensively and accurately reflect the performance changes of EDFA.

[0004] Therefore, there is an urgent need for a more advanced and accurate method for monitoring EDFA optical line amplification, which can monitor the performance status of EDFA in real time and comprehensively, and timely discover potential fault hazards to ensure the stable and reliable operation of optical communication systems. Summary of the Invention

[0005] The purpose of the present invention is to provide a method and system for monitoring EDFA optical line amplification based on data analysis to solve the problems faced in the above background art.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A method for monitoring EDFA optical line amplification based on data analysis, the method comprising the following steps:

[0008] Step S1, collect the optical layer parameters, electrical layer parameters, and environmental parameters of EDFA in real time;

[0009] Step S2, process the parameters collected in step S1 to unify the parameters obtained under different measurement conditions to the same scale;

[0010] Step S3, analyze the processed data, evaluate the health status of EDFA according to the analysis results. When the health status of EDFA is abnormal, enter step S4; when the health status of EDFA is normal, enter step S5;

[0011] Step S4: When it is determined that the health status of the EDFA is abnormal, an early warning signal is immediately issued, and the fault type and cause are further analyzed.

[0012] Step S5: When it is determined that the health status of the EDFA is normal, predict the future status of the EDFA.

[0013] As a further description of the technical solution of the present invention, the specific process of step S1 includes:

[0014] Optical layer parameter acquisition: Optical power sensors are arranged at the input and output ports of the EDFA to collect the input optical power and output optical power in real time.

[0015] Electrical layer parameter acquisition: A current sensor is set in the pump source circuit to monitor the pump current in real time.

[0016] Environmental parameter acquisition: A temperature sensor is set in the optical fiber part of the EDFA to collect the optical fiber temperature in real time.

[0017] As a further description of the technical solution of the present invention, the specific process of step S3 includes:

[0018] Construct a calculation model for the health status coefficient of the EDFA, and the expression is:

[0019]

[0020] In the formula, G is the optical layer health coefficient of the EDFA, D is the electrical layer health coefficient of the EDFA, H is the environmental layer health coefficient of the EDFA, α, β, and γ are the weight coefficients corresponding to the optical layer health coefficient, electrical layer health coefficient, and environmental layer health coefficient respectively, and θ is the noise coefficient.

[0021] Compare the optical layer health coefficient of the EDFA, the electrical layer health coefficient of the EDFA, and the environmental layer health coefficient of the EDFA with the set corresponding thresholds respectively. If any one of the optical layer health coefficient of the EDFA, the electrical layer health coefficient of the EDFA, and the environmental layer health coefficient of the EDFA exceeds the corresponding threshold, it means that the EDFA has a fault, and the fault type is the fault of the corresponding layer that exceeds the corresponding threshold. If none of them exceeds the corresponding threshold, compare the health status coefficient ρ of the EDFA with the preset EDFA optical layer health coefficient threshold ρ th If the health status coefficient ρ of the EDFA is greater than or equal to the preset EDFA optical layer health coefficient threshold, it means that there is a potential fault in the health status coefficient of the EDFA.

[0022] As a further description of the technical solution of the present invention, the specific acquisition process of the optical layer health coefficient of the EDFA includes:

[0023] In the current cycle, collect the output optical power P once every once in a whileo 、Input optical power P i The data of the input optical power varying with time is collected, and then a calculation model for the health coefficient of the EDFA optical layer is constructed:

[0024]

[0025] In the formula, n is the total number of acquisitions, P on is the output optical power acquired at the current moment, P in is the input optical power acquired at the current moment, P oi is the output optical power acquired at the i-th moment, P ii is the input optical power acquired at the i-th moment, P omax is the maximum value among all the acquired output optical powers, P imax is the maximum value among all the acquired input optical powers, P omin is the minimum value among all the acquired output optical powers, P imin is the maximum value among all the acquired input optical powers, α, β, and γ are the weight coefficients corresponding to the output optical power, input optical power, and power gain respectively, where i belongs to n.

[0026] As a further description of the technical solution of the present invention, the specific acquisition process of the health coefficient of the EDFA optical and electrical layer includes:

[0027] During the current period, the pump current is collected at regular intervals, and then a calculation model for the health coefficient of the EDFA electrical layer is constructed:

[0028]

[0029] In the formula, n is the total number of acquisitions, I n is the current pump current, I i is the pump current acquired at the i-th moment, I max is the maximum value among all the acquired pump currents, I min is the minimum value among all the acquired pump currents.

[0030] As a further description of the technical solution of the present invention, the specific acquisition process of the health coefficient of the EDFA environmental layer includes:

[0031] The optical fiber part of the EDFA is divided into m segments. During the current period, the temperatures of the m segments of the optical fiber are collected at regular intervals, and then a calculation model for the health coefficient of the EDFA environmental layer is constructed:

[0032]

[0033] In the formula, n is the total number of acquisitions, Tnj is the temperature of the current j-th section of optical fiber, T ij is the temperature of the j-th section of optical fiber collected at the i-th moment, T maxj is the maximum value among all the temperatures of the j-th section of optical fiber collected, T minj is the minimum value among all the temperatures of the j-th section of optical fiber collected, k j is the weight coefficient corresponding to the j-th section of optical fiber.

[0034] As a further description of the technical solution of the present invention, the specific process of obtaining the noise figure includes:

[0035] Obtain the average noise power P of the measured output optical signal in real time o-noies and the average noise power P of the input optical signal i-noies , and then construct an EDFA noise figure calculation model, the expression is:

[0036]

[0037] In the formula, is the output optical power collected at the current moment, is the input optical power collected at the current moment.

[0038] As a further description of the technical solution of the present invention, the specific process of step S5 includes:

[0039] Calculate the health status coefficient ρ1 of the EDFA in the previous cycle, and then through the formula Calculate the probability of a fault in the health status of the EDFA in the next cycle.

[0040] An EDFA optical line amplification monitoring system based on data analysis, the system includes:

[0041] A data acquisition module for real-time acquisition of parameter information of the EDFA;

[0042] A data processing module that processes the collected parameters and unifies the parameters obtained under different measurement conditions to the same scale;

[0043] A data analysis module for feature analysis of the preprocessed data;

[0044] A health assessment module for evaluating the EDFA optical line in the current cycle according to the analysis results of the data analysis module.

[0045] The beneficial effects of the present invention:

[0046] The present invention collects the optical layer parameters, electrical layer parameters, and environmental parameters of an EDFA in real time, unifies the parameters obtained under different measurement conditions to the same scale, then analyzes the health status of the optical layer, electrical layer, and environmental layer of the EDFA based on the optical layer parameters, electrical layer parameters, and environmental parameters of the EDFA respectively, and comprehensively analyzes the potential health status of the EDFA based on the optical layer parameters, electrical layer parameters, and environmental parameters of the EDFA. When it is determined that the health status of the EDFA is abnormal, a warning signal is immediately issued, and the fault type and cause are further analyzed. When it is determined that the health status of the EDFA is normal, the future status of the EDFA is predicted, which can monitor the performance status of the EDFA in real time and comprehensively, accurately diagnose the fault type and cause, and effectively improve the reliability and stability of the optical communication system.

[0047] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously.

[0048] BRIEF DESCRIPTION OF THE DRAWINGS To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0049] Figure 1 It is a partial flow schematic diagram of the EDFA optical line amplification monitoring method based on data analysis of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the protection scope of the present invention.

[0051] Please refer to Figure 1 As shown, a method for monitoring an EDFA optical line amplification based on data analysis is disclosed, and the method includes the following steps:

[0052] Step S1: Collect the optical layer parameters, electrical layer parameters, and environmental parameters of the EDFA in real time;

[0053] Step S2: Process the parameters collected in step S1 and unify the parameters obtained under different measurement conditions to the same scale;

[0054] Step S3: Analyze the processed data, evaluate the health status of the EDFA according to the analysis results. When the health status of the EDFA is abnormal, enter Step S4; when the health status of the EDFA is normal, enter Step S5;

[0055] Step S4: When it is determined that the health status of the EDFA is abnormal, immediately issue a warning signal and further analyze the fault type and cause;

[0056] Step S5: When it is determined that the health status of the EDFA is normal, predict the future status of the EDFA.

[0057] Through the above technical solution, the present invention collects the optical layer parameters, electrical layer parameters and environmental parameters of the EDFA in real time, unifies the parameters obtained under different measurement conditions to the same scale, and then analyzes the health status of the optical layer, electrical layer and environmental layer of the EDFA based on the optical layer parameters, electrical layer parameters and environmental parameters of the EDFA respectively, and comprehensively analyzes the potential health status of the EDFA based on the optical layer parameters, electrical layer parameters and environmental parameters of the EDFA. When it is determined that the health status of the EDFA is abnormal, immediately issue a warning signal and further analyze the fault type and cause. When it is determined that the health status of the EDFA is normal, predict the future status of the EDFA, which can monitor the performance status of the EDFA in real time and comprehensively, accurately diagnose the fault type and cause, and effectively improve the reliability and stability of the optical communication system.

[0058] As a further description of the technical solution of the present invention, the specific process of Step S1 includes:

[0059] Optical layer parameter collection: Arrange optical power sensors at the input and output ports of the EDFA to collect the input optical power and output optical power in real time;

[0060] Electrical layer parameter collection: Set a current sensor in the pump source circuit to monitor the pump current in real time;

[0061] Environmental parameter collection: Set a temperature sensor in the optical fiber part of the EDFA to collect the optical fiber temperature in real time.

[0062] As a further description of the technical solution of the present invention, the specific process of Step S3 includes:

[0063] Construct a calculation model for the health status coefficient of the EDFA, and the expression is:

[0064]

[0065] In the formula, G is the optical layer health coefficient of the EDFA, D is the electrical layer health coefficient of the EDFA, H is the environmental layer health coefficient of the EDFA, α, β and γ are the weight coefficients corresponding to the optical layer health coefficient, electrical layer health coefficient and environmental layer health coefficient respectively, and θ is the noise coefficient;

[0066] Compare the optical layer health coefficient, electrical layer health coefficient, and environmental layer health coefficient of the EDFA with the set corresponding thresholds respectively. If any one of the optical layer health coefficient, electrical layer health coefficient, and environmental layer health coefficient of the EDFA exceeds the corresponding threshold, it indicates that the EDFA has a fault, and the fault type is the fault of the corresponding layer that exceeds the corresponding threshold. If none of them exceeds the corresponding threshold, then compare the health status coefficient ρ of the EDFA with the pre-set EDFA optical layer health coefficient threshold ρ th If the health status coefficient ρ of the EDFA is greater than or equal to the pre-set EDFA optical layer health coefficient threshold, it indicates that there is a potential fault in the health status coefficient of the EDFA.

[0067] Through the above technical solution, this embodiment provides a method for judging the health status of a healthy EDFA. First, obtain the optical layer health coefficient G, electrical layer health coefficient D, and environmental layer health coefficient H of the EDFA respectively. Compare the optical layer health coefficient, electrical layer health coefficient, and environmental layer health coefficient of the EDFA with the set corresponding thresholds respectively. If any one of the optical layer health coefficient, electrical layer health coefficient, and environmental layer health coefficient of the EDFA exceeds the corresponding threshold, it indicates that the EDFA has a fault, and the fault type is the fault of the corresponding layer that exceeds the corresponding threshold. For example, the possible fault types of abnormal optical layer health coefficient of the EDFA may be: fiber aging and damage, optical connector problems, and light source performance degradation, etc. The possible fault types of abnormal electrical layer health coefficient of the EDFA may be: pump source failure, circuit element aging, and electromagnetic interference, etc. The possible fault types of abnormal environmental layer health coefficient of the EDFA may be: changes in environmental temperature and humidity, etc.;

[0068] If none of them exceeds the corresponding threshold, then calculate the health status coefficient of the EDFA through the formula Compare the health status coefficient ρ of the EDFA with the pre-set EDFA optical layer health coefficient threshold ρ th If the health status coefficient ρ of the EDFA is greater than or equal to the pre-set EDFA optical layer health coefficient threshold, it indicates that there is a potential fault in the health status coefficient of the EDFA.

[0069] As a further description of the technical solution of the present invention, the specific process of obtaining the optical layer health coefficient of the EDFA includes:

[0070] During the current period, collect the output optical power P o and the input optical power P i data changing with time at regular intervals, and then construct an EDFA optical layer health coefficient calculation model:

[0071]

[0072] In the formula, n is the total number of acquisitions, and P on is the output optical power acquired at the current moment, and P in is the input optical power acquired at the current moment, P oi is the output optical power acquired at the i-th moment, and P ii is the input optical power acquired at the i-th moment, P omax is the maximum value among all the acquired output optical powers, and P imax is the maximum value among all the acquired input optical powers, and P omin is the minimum value among all the acquired output optical powers, and P imin is the maximum value among all the acquired input optical powers, α, β, and γ are the weight coefficients corresponding to the output optical power, input optical power, and power gain respectively, where i belongs to n.

[0073] Through the above technical solution, this embodiment provides a method for obtaining the health coefficient of the EDFA optical layer. During the current period, the output optical power P o , and the input optical power P i are acquired at regular intervals over time, and based on the output optical power P o , the input optical power P i , the power gain is calculated through the formula , and then substituted into the formula to calculate the health coefficient of the EDFA optical layer, where and respectively represent the fluctuation conditions of the output optical power P o , the input optical power P i , and the power gain P ei , all of which are proportional to the health coefficient of the EDFA optical layer, and respectively represent the reference data of the output optical power P o , the input optical power P i , and the power gain P ei , all of which are proportional to the health coefficient of the EDFA optical layer.

[0074] As a further description of the technical solution of the present invention, the specific process for obtaining the health coefficient of the EDFA optoelectronic layer includes:

[0075] During the current period, the pump current is acquired at regular intervals, and then an EDFA electrical layer health coefficient calculation model is constructed:

[0076]

[0077] Wherein, n is the total number of acquisitions, I n is the current pump current, I i is the pump current acquired at the i-th moment, I max is the maximum value among all the acquired pump currents, I min is the minimum value among all the acquired pump currents.

[0078] Through the above technical solution, this embodiment provides a method for obtaining the EDFA electrical layer health coefficient. During the current period, the pump current I is acquired every once in a while, and then substituted into the formula to calculate the EDFA electrical layer health coefficient, where represents the fluctuation of the pump current and is proportional to the EDFA electrical layer health coefficient, represents the reference data of the pump current and is proportional to the EDFA electrical layer health coefficient.

[0079] As a further description of the technical solution of the present invention, the specific process for obtaining the EDFA environmental layer health coefficient includes:

[0080] The optical fiber part of the EDFA is divided into m segments. During the current period, the optical fiber temperature of the m segments is acquired every once in a while, and then an EDFA environmental layer health coefficient calculation model is constructed:

[0081]

[0082] Wherein, n is the total number of acquisitions, T nj is the current optical fiber temperature of the j-th segment, T ij is the optical fiber temperature of the j-th segment acquired at the i-th moment, T maxj is the maximum value among all the acquired optical fiber temperatures of the j-th segment, T minj is the minimum value among all the acquired optical fiber temperatures of the j-th segment, k j is the weight coefficient corresponding to the j-th segment of the optical fiber.

[0083] Through the above technical solution, this embodiment provides a method for obtaining the EDFA electrical layer health coefficient. The optical fiber part of the EDFA is divided into m segments. During the current period, the optical fiber temperature of the m segments is acquired every once in a while, and then substituted into the formula to calculate the EDFA environmental layer health coefficient, where represents the fluctuation of the optical fiber temperature of the j-th segment and is proportional to the EDFA electrical layer health coefficient of the j-th segment of the optical fiber, represents the reference data of the optical fiber temperature of the j-th segment and is proportional to the EDFA electrical layer health coefficient of the j-th segment of the optical fiber.

[0084] As a further description of the technical solution of the present invention, the specific process for obtaining the noise coefficient includes:

[0085] Obtain the average noise power P of the measured output optical signal in real time o-noies and the average noise power P of the input optical signal i-noies , and then construct an EDFA noise figure calculation model, the expression is:

[0086]

[0087] In the formula, is the output optical power collected at the current moment, is the input optical power collected at the current moment.

[0088] Through the above technical solution, this embodiment provides a method for obtaining the gain coefficient. The calculation of the noise figure depends on the noise power of the output optical signal. By measuring the average noise power P of the output optical signal o-noies and the average noise power P of the input optical signal i-noies , combined with the gain coefficient G of the EDFA, through the formula Calculate the EDFA noise figure. A lower noise figure means that less noise is introduced during the amplification process of the EDFA, and the impact on the signal quality is smaller, which helps to improve the transmission performance and sensitivity of the optical communication system.

[0089] As a further description of the technical solution of the present invention, the specific process of step S5 includes:

[0090] Calculate the health status coefficient ρ1 of the EDFA in the previous cycle, and then through the formula Calculate the probability of a fault in the health status of the EDFA in the next cycle.

[0091] Through the above technical solution, the present invention provides a method for predicting the health status of an EDFA. Substitute the health status coefficients of the current cycle and the previous cycle into the formula Calculate the probability of a fault in the health status of the EDFA in the next cycle.

[0092] It should be noted that the calculations in the present invention are all pure numerical calculations. All parameters have been dimensionless processed, and the standard data, thresholds, and weight coefficients set in the present invention are all empirical data and will not be elaborated.

[0093] The above content is only an example and explanation of the concept of the present invention. Those skilled in the art of this technology make various modifications or supplements to the described specific embodiments or use similar methods to replace them. As long as they do not deviate from the concept of the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. A method for monitoring EDFA optical line amplification based on data analysis, characterized in that: The method comprises the following steps: Step S1, real-time collection of optical layer parameters, electrical layer parameters and environmental parameters of EDFA; Step S2, processing the parameters collected in step S1, and unifying the parameters obtained under different measurement conditions to the same scale; Step S3, analyzing the processed data, and evaluating the health status of the EDFA according to the analysis results. When the health status of the EDFA is abnormal, proceed to step S4; when the health status of the EDFA is normal, proceed to step S5; Step S4: When it is determined that the health status of the EDFA is abnormal, an early warning signal is immediately issued, and the fault type and cause are further analyzed; Step S5: When it is determined that the health status of the EDFA is normal, the future status of the EDFA is predicted.

2. The EDFA optical line amplification monitoring method based on data analysis according to claim 1, characterized in that: The specific process of step S1 includes: Optical layer parameter collection: Optical power sensors are placed at the input and output ports of EDFA to collect input and output optical power in real time; Electrical layer parameter collection: a current sensor is set in the pump source circuit to monitor the pump current in real time; Environmental parameter collection: A temperature sensor is set on the optical fiber part of EDFA to collect the optical fiber temperature in real time.

3. The EDFA optical line amplification monitoring method based on data analysis according to claim 2, characterized in that: The specific process of step S3 includes: Construct the EDFA health status coefficient calculation model, the expression is: Where G is the EDFA optical layer health factor, D is the EDFA electrical layer health factor, H is the EDFA environmental layer health factor, α, β and γ are the weight coefficients corresponding to the optical layer health factor, electrical layer health factor and environmental layer health factor respectively, and θ is the noise coefficient; The EDFA optical layer health factor, EDFA electrical layer health factor and EDFA environmental layer health factor are compared with the set corresponding thresholds respectively. If any one of the EDFA optical layer health factor, EDFA electrical layer health factor and EDFA environmental layer health factor exceeds the corresponding threshold, it means that the EDFA is faulty and the fault type is a fault in the corresponding layer that exceeds the corresponding threshold. If none of the items exceeds the corresponding threshold, the EDFA health status coefficient ρ is compared with the system preset EDFA optical layer health factor threshold ρ. th By comparison, if the EDFA health coefficient ρ is greater than or equal to the EDFA optical layer health coefficient threshold preset by the system, it indicates that there is a potential fault in the EDFA health coefficient.

4. The EDFA optical line amplification monitoring method based on data analysis according to claim 3, characterized in that: The specific process of obtaining the EDFA optical layer health coefficient includes: In the current cycle, the output optical power P is collected at regular intervals. o 、Input optical power P i The data changes over time, and then the EDFA optical layer health factor calculation model is constructed: In the formula, n is the total number of acquisitions, P on is the output optical power collected at the current moment, P in is the input optical power collected at the current moment, P oi is the output optical power collected at the i-th moment, P ii is the input optical power collected at the i-th moment, P omax is the maximum value of all the output optical powers collected, P imax is the maximum value of all input optical powers collected, P omin is the minimum value of all the output optical powers collected, P imin is the maximum value of all input optical powers collected, α, β and γ are weight coefficients corresponding to output optical power, input optical power and power gain, respectively, where i belongs to n.

5. The EDFA optical line amplification monitoring method based on data analysis according to claim 3, characterized in that: The specific process of obtaining the EDFA photoelectric layer health coefficient includes: In the current cycle, the pump current is collected at regular intervals, and then the EDFA electrical layer health coefficient calculation model is constructed: In the formula, n is the total number of acquisitions, I n is the current pump current, I i is the pump current collected at the i-th moment, I max is the maximum value of all the pump currents collected, I min It is the minimum value of all the collected input pump currents.

6. The EDFA optical line amplification monitoring method based on data analysis according to claim 3, characterized in that: The specific process of obtaining the EDFA environmental layer health coefficient includes: The optical fiber part of EDFA is divided into m sections. In the current cycle, the optical fiber temperature of m sections is collected at regular intervals, and then the EDFA environmental layer health coefficient calculation model is constructed: In the formula, n is the total number of acquisitions, T nj is the current temperature of the jth fiber segment, T ij is the temperature of the jth optical fiber section collected at the i-th moment, T maxj is the maximum value of all the j-th fiber temperatures collected, T minj is the minimum value of all the j-th fiber temperatures collected, k j is the weight coefficient corresponding to the jth optical fiber segment.

7. The EDFA optical line amplification monitoring method based on data analysis according to claim 3, characterized in that: The specific process of obtaining the noise coefficient includes: Real-time acquisition and measurement of the average noise power P of the output optical signal o-noies and the average noise power P of the input optical signal i-noies , and then build the EDFA noise coefficient calculation model, the expression is: In the formula, is the output optical power collected at the current moment, It is the input optical power collected at the current moment.

8. The EDFA optical line amplification monitoring method based on data analysis according to claim 3, characterized in that: The specific process of step S5 includes: Calculate the health status coefficient ρ1 of the EDFA in the previous cycle, and then use the formula Calculate the probability that the EDFA's healthy state in the next cycle will have a fault.

9. An EDFA optical line amplification monitoring system based on data analysis, applicable to the EDFA optical line amplification monitoring method based on data analysis according to any one of claims 1 to 8, characterized in that: The system comprises: Data acquisition module, used to collect EDFA parameter information in real time; The data processing module processes the collected parameters and unifies the parameters obtained under different measurement conditions to the same scale; Data analysis module, used to perform feature analysis on preprocessed data; The health assessment module is used to evaluate the EDFA optical line of the current cycle according to the analysis results of the data analysis module.

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