A 400G all-optical network communication line monitoring system based on EDFA fiber amplifier

Abstract

The present invention discloses a 400G all-optical network communication line monitoring system based on EDFA fiber amplifier, which belongs to the technical field of communication line monitoring, and includes: a parameter acquisition module, which is used to obtain the output power, noise coefficient and EDFA amplification gain of the input signal and other related parameter information monitored on the communication line; a comprehensive analysis management end analyzes the acquired related parameters to generate a risk value, and judges whether the communication line has an abnormal risk according to the risk value; a real-time alarm module, which gives a real-time alarm after judging that the communication line has an abnormal risk; and a risk warning module, which warns the potential risks of the communication line according to the acquired risk value. The analysis method of the comprehensive analysis management end of the present invention is to conduct a comprehensive analysis based on the output power change, noise coefficient change and amplification gain change within the monitoring period, so as to reduce the misjudgment caused by accidental factors and make the monitoring results more accurate.

Description

Technical Field

[0001] The present invention belongs to the technical field of communication line monitoring, and in particular relates to a 400G all-optical network communication line monitoring system based on EDFA optical fiber amplifier. Background Art

[0002] At present, the 100G line transmission solution is very mature and widely used in commercial applications. However, with the advent of the 5G era and the rapid rise of new services such as 4K, VR, cloud computing, and big data, optical networks are booming. 100G optical networks will increasingly fail to meet the transmission needs of bandwidth. Therefore, a 400G all-optical network communication line has emerged, which can achieve ultra-high bandwidth, ultra-low latency, ultra-high capacity, ultra-high security, ultra-high energy efficiency, and ultra-high intelligent interconnection, and has broad application prospects. EDFA optical fiber amplifiers can directly amplify optical signals in optical fibers without converting optical signals into electrical signals and then amplifying them. They can effectively compensate for the loss of signals during optical fiber transmission, thereby ensuring high-quality signal transmission.

[0003] In order to ensure the normal transmission of signals on communication lines, the line transmission quality is generally monitored in real time, that is, the signal strength in the monitoring area is obtained. When the signal strength is lower than expected, an abnormal alarm occurs. However, the signal may be affected by some uncertain factors during transmission and may fluctuate briefly before returning to normal. At this time, the system will also judge that the line transmission quality is abnormal, resulting in a misjudgment. In addition, the existing alarm is only a real-time alarm and cannot warn of potential risks on the line. Summary of the invention

[0004] The purpose of the present invention is to provide a 400G all-optical network communication line monitoring system based on EDFA optical fiber amplifier to solve the problems faced in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A 400G all-optical network communication line monitoring system based on EDFA optical fiber amplifier, the system comprising:

[0007] A parameter acquisition module, which is used to acquire relevant parameter information monitored on the communication line;

[0008] A comprehensive analysis management terminal, which is used to analyze the acquired relevant parameters to generate a risk value, and determine whether there is an abnormal risk in the communication line according to the risk value status;

[0009] A real-time alarm module, which generates a real-time alarm after determining that there is an abnormal risk in the communication line;

[0010] A risk warning module is used to warn of potential risks of communication lines according to the acquired risk values.

[0011] Furthermore, the relevant parameter information includes the monitored output power and noise coefficient of the EDFA after amplification and the amplification gain of the EDFA to the input signal.

[0012] Furthermore, the method for generating risk value by the comprehensive analysis management platform is:

[0013] Every monitoring period, obtain the output power variation curve of EDFA amplified over time in the monitoring period And the noise figure variation curve over time ;

[0014] So through the formula Determine the risk value ;

[0015] The risk value you will get The risk threshold preset in the system To compare:

[0016] when When , it is judged that there is an abnormal risk in the communication line;

[0017] in, It is the preset standard output power variation curve over time. is the preset standard noise coefficient variation curve over time. is the gain fluctuation coefficient, is the start time of the monitoring period, is the end time of the monitoring period, is the preset output power change reference value, is the preset noise coefficient change reference value, is the preset output power versus noise figure function, It is the reference value of the preset output power and noise figure change.

[0018] Furthermore, the gain fluctuation coefficient The method to obtain it is:

[0019] During the monitoring period, the amplification gain of the input signal is collected n times, and the gain value collected each time is obtained. ;

[0020] By formula Gain Fluctuation Coefficient ;

[0021] in, .

[0022] Furthermore, the method for the real-time alarm module to perform real-time alarm is:

[0023] When it is judged that there is an abnormal risk in the communication line, the risk value obtained at this time Another risk threshold preset in the system To compare:

[0024] when When , a level 1 alarm is generated;

[0025] when A level 2 alarm is generated.

[0026] Furthermore, the severity of the second-level alarm is higher than that of the first-level alarm. When a first-level alarm is generated, maintenance personnel are reminded to remotely monitor and check the network line. When a second-level alarm is generated, maintenance personnel are reminded to go to the fault area for inspection and repair.

[0027] Furthermore, the risk warning module performs warning in the following manner:

[0028] When it is determined that there is no abnormal risk in the communication line, the risk value obtained in m consecutive monitoring cycles is obtained. , thus developing a risk value-over-time curve ;

[0029] By formula Get the warning status value ;

[0030] The warning status value obtained Preset warning thresholds in the system To compare:

[0031] when When a potential risk warning is generated;

[0032] in, , as well as is the preset coefficient, for The maximum value of is the maximum risk value detected, is the minimum risk value detected. is the preset standard risk value changing curve over time, is the start time of the first monitoring cycle, The end time of the last monitoring cycle.

[0033] Beneficial effects of the present invention:

[0034] The present invention divides the communication line into a plurality of sections according to the setting position of the EDFA optical fiber amplifier, generates a risk value by comprehensively analyzing the output power size and the noise coefficient size after amplification obtained by the EDFA optical fiber amplifier in each section and the amplification gain size of the EDFA to the input signal, and judges whether the communication line has an abnormal risk according to the risk value status. In this way, when an abnormal risk occurs, it can be known in time which section the abnormality occurs, thereby narrowing the search scope, and real-time alarm can be performed, which is convenient for management personnel to manage and maintain the line.

[0035] The analysis method of the comprehensive analysis management end of the present invention is to conduct a comprehensive analysis on the output power change, noise coefficient change and amplification gain change within the monitoring period, which can reduce the misjudgment caused by accidental factors and make the monitoring result more accurate.

[0036] The risk warning module of the present invention can also warn of potential risks of communication lines based on the acquired risk values, so that when the line is normal, the potential risks can be analyzed, so as to understand the potential risk status of the line as early as possible, and to troubleshoot and deal with the potential risks as early as possible, so as to ensure normal transmission of the line.

[0037] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0039] Figure 1 It is a system block diagram of the present invention. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In one embodiment, a 400G all-optical network communication line monitoring system based on EDFA optical fiber amplifier is disclosed, such as Figure 1 The monitoring system comprises:

[0042] The parameter acquisition module is used to acquire relevant parameter information monitored on the communication line, and the relevant parameter information includes the output power size and noise coefficient size after the EDFA amplification and the amplification gain size of the EDFA to the input signal;

[0043] The comprehensive analysis management terminal is used to analyze the acquired relevant parameters to generate a risk value, and determine whether there is an abnormal risk in the communication line according to the risk value status;

[0044] Real-time alarm module, which will issue a real-time alarm after determining that there is an abnormal risk in the communication line;

[0045] The risk warning module warns of potential risks of communication lines based on the acquired risk values.

[0046] Through the above technical scheme, the present application divides the communication line into multiple sections according to the setting position of the EDFA optical fiber amplifier, and generates a risk value by comprehensively analyzing the output power size, noise coefficient size and EDFA amplification gain size of the input signal obtained by the EDFA optical fiber amplifier in each section, and judges whether the communication line has abnormal risk according to the risk value status. In this way, when an abnormal risk occurs, it can be known in time which section the abnormality occurs, thereby narrowing the search scope, and real-time alarm can be performed, which is convenient for management personnel to manage and maintain the line. The analysis method of the comprehensive analysis management end is based on the output power change, noise coefficient change and amplification gain change within the monitoring period. This can reduce misjudgment caused by accidental factors and make the monitoring results more accurate; at the same time, the risk warning module can also warn of the potential risks of the communication line according to the obtained risk value situation. In this way, when the line is normal, the potential risks can be analyzed, so as to understand the potential risk status of the line as early as possible, so as to deal with the potential risks as early as possible, thereby ensuring normal transmission of the line.

[0047] As an implementation mode of the present invention, the method for generating risk value by the comprehensive analysis management platform is:

[0048] Every monitoring period, obtain the output power variation curve of EDFA amplified over time in the monitoring period And the noise figure variation curve over time ;

[0049] So through the formula Determine the risk value ;

[0050] The risk value you will get The risk threshold preset in the system To compare:

[0051] when When , it is judged that there is an abnormal risk in the communication line;

[0052] in, It is the preset standard output power variation curve over time. is the preset standard noise coefficient variation curve over time. is the gain fluctuation coefficient, is the start time of the monitoring period, is the end time of the monitoring period, is the preset output power change reference value, is the preset noise coefficient change reference value, is the preset output power versus noise figure function, A reference value for the preset output power versus noise figure variation;

[0053] The gain fluctuation coefficient The acquisition method is: within the monitoring period, the amplification gain of the input signal is collected n times, and the gain value collected each time is obtained. ;

[0054] By formula Gain Fluctuation Coefficient ;

[0055] in, .

[0056] Through the above technical solution, this embodiment provides a method for generating a risk value and a method for judging whether a communication line has an abnormal risk according to the risk value. Generally, when the signal quality of the communication line is abnormal, the signal strength (that is, the output power) after EDFA amplification will fluctuate, the noise situation (that is, the noise coefficient) will increase, and the amplification factor (that is, the gain value) of the input signal by EDFA will also fluctuate. Therefore, the output power size after EDFA amplification, the noise coefficient size, and the amplification gain size of EDFA to the input signal are first obtained, and at every monitoring period, the output power change curve after EDFA amplification over time in the monitoring period is obtained. And the noise figure variation curve over time At the same time, during the monitoring period, the amplification gain of the input signal is collected n times, and the gain value collected each time is obtained. , so that through the formula Determine the risk value ,in is expressed as the gain fluctuation coefficient, and , it can be seen from the formula that the formula It indicates the change of the output power obtained during the monitoring period relative to the standard output power. The output power needs to be within the appropriate range. When it is too large or too small, it indicates that the signal quality of the communication line is abnormal. Therefore, the larger the value, the greater the possibility of abnormal signal quality of the communication line. The formula It indicates the ratio of the noise coefficient change obtained during the monitoring period to the standard noise coefficient change. Generally speaking, the smaller the noise coefficient, the better the signal quality of the communication line. Therefore, when its value is larger, it can be shown that the additional noise level introduced by the noise EDFA is larger, which means that the signal quality of the communication line is worse. The change in output power is also related to the change in noise coefficient. Therefore, in order to more accurately judge the risk of the communication line, the formula can be used. To express the difference between output power and noise figure, is the preset output power versus noise coefficient function, which can be determined based on relevant empirical data in big data. The formula It can reflect the ratio of the output power change relative to the noise coefficient change obtained during the monitoring period to the standard output power change relative to the noise coefficient change, and then through the formula The difference between the two is obtained, and thus the difference between the output power and the noise coefficient is obtained. When the value is larger, it indicates that the possibility of abnormal signal quality of the communication line is greater, and the formula It indicates the gain fluctuation during the monitoring period. Generally speaking, the better the signal quality of the communication line, the more stable the gain and the smaller the fluctuation. Therefore, when the gain fluctuation coefficient The larger the value, the greater the possibility of abnormal signal quality of the communication line. The larger the value, the greater the possibility of abnormal signal quality of the communication line. The risk threshold preset in the system Compare: When In this way, a comprehensive analysis can be performed based on the gain fluctuation, output power change, noise factor change, and the difference between output power and noise factor during the monitoring period, so as to more accurately obtain the risk value, thereby judging whether the signal quality of the communication line is abnormal and making the monitoring results more accurate.

[0057] In the above technical solution, the preset standard output power variation curve over time , the preset standard noise figure changes with time The start time of the monitoring cycle is determined based on historical data under normal conditions of the line. and the end time of the monitoring period Can be determined manually, and the preset output power change reference value , preset noise coefficient change reference value , preset output power vs. noise figure change reference value And the risk thresholds preset in the system It can be formulated comprehensively based on historical data and empirical data, which will not be elaborated in detail here.

[0058] As an implementation mode of the present invention, the method for the real-time alarm module to perform real-time alarm is:

[0059] When it is judged that there is an abnormal risk in the communication line, the risk value obtained at this time Another risk threshold preset in the system To compare:

[0060] when When , a level 1 alarm is generated;

[0061] when When , a secondary alarm is generated;

[0062] The severity of the second-level alarm is higher than that of the first-level alarm. When a first-level alarm is generated, maintenance personnel are reminded to remotely monitor and check the network line. When a second-level alarm is generated, maintenance personnel are reminded to go to the fault area for inspection and repair.

[0063] Through the above technical solution, the real-time alarm module of this embodiment performs real-time alarm. When it is determined that there is an abnormal risk in the communication line, the risk value obtained at this time is Another risk threshold preset in the system For comparison, another risk threshold It can be determined based on historical experience data. When , it means that the communication line is abnormal, but the abnormality is not serious, then a level 1 alarm is generated to remind maintenance personnel to remotely monitor the network line to further determine the abnormality; when When the fault occurs, it indicates that a serious abnormality has occurred in the communication line. A secondary alarm is generated to remind maintenance personnel to immediately go to the fault area for inspection and repair, so as to restore the communication line in time and ensure normal transmission.

[0064] As an implementation mode of the present invention, the risk warning module performs warning in the following manner:

[0065] When it is determined that there is no abnormal risk in the communication line, the risk value obtained in m consecutive monitoring cycles is obtained. , thus developing a risk value-over-time curve ;

[0066] By formula Get the warning status value ;

[0067] The warning status value obtained Preset warning thresholds in the system To compare:

[0068] when When a potential risk warning is generated;

[0069] in, , as well as is the preset coefficient, for The maximum value of is the maximum risk value detected, is the minimum risk value detected. is the preset standard risk value changing curve over time, is the start time of the first monitoring cycle, The end time of the last monitoring cycle.

[0070] Through the above technical solution, this embodiment provides a method for the risk warning module to perform risk warning. Since the set risk threshold is a fixed value, an alarm is issued only when it is exceeded. If the risk value is relatively low at the beginning, but gradually increases subsequently, or the obtained risk value is always near the threshold, although no alarm occurs at this time, it can also be explained that there is a risk in the line signal quality. Therefore, this embodiment specifically obtains the risk value obtained in m consecutive monitoring cycles when judging that there is no abnormal risk in the communication line. , thus developing a risk value-over-time curve , and by the formula Get the warning status value ;formula It indicates the maximum value of the curve change obtained within the proposed curve period. The larger the value, the more obvious the change in risk value. Formula It indicates the difference between the maximum risk value and the minimum risk value within the proposed curve period. The larger the value, the greater the risk. Formula It indicates the cumulative difference between the risk value change and the standard risk value within the proposed curve period. The larger the difference, the greater the risk. The larger the value, the greater the potential risk, so the warning status value Preset warning thresholds in the system Compare: When When it is detected, it indicates that there is a high possibility of potential risk in the signal quality of the communication line. In this case, a potential risk warning is generated to timely handle and troubleshoot the potential risk, thereby ensuring normal transmission of the line.

[0071] In the above technical solution, the preset coefficient , as well as The preset warning condition threshold can be determined based on experience And the preset standard risk value change curve over time It can be formulated comprehensively based on historical data and empirical data, which will not be elaborated in detail here.

[0072] It should be noted that the calculation formulas and various parameters involved in the calculations in the present invention have been dimensionally processed in advance, and the process of dimensionless processing is well known in the industry and will not be described here.

[0073] The present invention divides the communication line into multiple sections according to the setting position of the EDFA optical fiber amplifier, and generates a risk value by comprehensively analyzing the output power size, noise coefficient size and EDFA amplification gain size of the input signal obtained by the EDFA optical fiber amplifier in each section, and judges whether the communication line has abnormal risk according to the risk value status, so that when an abnormal risk occurs, it can be known in time which section has abnormality, thereby narrowing the search scope, and real-time alarm can be performed, which is convenient for management personnel to manage and maintain the line. The analysis method of the comprehensive analysis management end of the present invention is to conduct a comprehensive analysis based on the output power change, noise coefficient change and amplification gain change within the monitoring period, so that the misjudgment caused by accidental factors can be reduced, and the monitoring result can be more accurate. The risk warning module of the present invention can also warn the potential risk of the communication line according to the acquired risk value situation, so that when the line is normal, the potential risk can be analyzed, so as to understand the potential risk status of the line as early as possible, and to investigate and process the potential risk as early as possible, so as to ensure the normal transmission of the line.

[0074] The above contents are merely examples and explanations of the concept of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A 400G all-optical network communication line monitoring system based on EDFA optical fiber amplifier, characterized in that: The system comprises: A parameter acquisition module, which is used to acquire relevant parameter information monitored on the communication line; A comprehensive analysis management terminal, which is used to analyze the acquired relevant parameters to generate a risk value, and determine whether there is an abnormal risk in the communication line according to the risk value status; A real-time alarm module, which generates a real-time alarm after determining that a communication line has an abnormal risk; A risk warning module, which warns of potential risks of communication lines according to the acquired risk value; The method for generating the risk value by the comprehensive analysis management terminal is: obtaining the output power variation curve of the EDFA after amplification over time in the monitoring period at every monitoring period. And the noise figure changing with time ; So through the formula Determine the risk value ; The risk value you will get The risk threshold preset in the system To compare: when When , it is judged that there is an abnormal risk in the communication line; in, It is the preset standard output power variation curve over time. is the preset standard noise coefficient variation curve over time. is the gain fluctuation coefficient, is the start time of the monitoring period, is the end time of the monitoring period, is the preset output power change reference value, is the preset noise coefficient change reference value, is the preset output power versus noise figure function, A reference value for the preset output power versus noise figure variation; The gain fluctuation coefficient The acquisition method is: within the monitoring period, the amplification gain of the input signal is collected n times, and the gain value collected each time is obtained. ; By formula Gain Fluctuation Coefficient ,in, ; The method for the real-time alarm module to perform real-time alarm is: when it is determined that there is an abnormal risk in the communication line, the risk value obtained at this time Another risk threshold preset in the system To compare: when When When a fault occurs, a level 2 alarm is generated, and the severity of the level 2 alarm is higher than that of the level 1 alarm. When a level 1 alarm is generated, the maintenance personnel are reminded to remotely monitor and check the network line. When a level 2 alarm is generated, the maintenance personnel are reminded to go to the fault area for inspection and repair. The method for the risk warning module to perform warning is: when it is determined that there is no abnormal risk in the communication line, the risk value obtained in m consecutive monitoring cycles is obtained. , thus developing a risk value-over-time curve ; By formula Get the warning status value ; The warning status value obtained Preset warning thresholds in the system To compare: when When a potential risk warning is generated; in, , as well as is the preset coefficient, for The maximum value of is the maximum risk value detected, is the minimum risk value detected. is the preset standard risk value changing curve over time, is the start time of the first monitoring cycle, The end time of the last monitoring cycle.

2. According to claim 1, a 400G all-optical network communication line monitoring system based on EDFA optical fiber amplifier is characterized in that: The relevant parameter information includes the monitored output power size and noise coefficient size of the EDFA after amplification and the amplification gain size of the EDFA to the input signal.

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