CN115589253A - Optical fiber line protection method and system based on OLP - Google Patents
Optical fiber line protection method and system based on OLP Download PDFInfo
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- CN115589253A CN115589253A CN202211575554.5A CN202211575554A CN115589253A CN 115589253 A CN115589253 A CN 115589253A CN 202211575554 A CN202211575554 A CN 202211575554A CN 115589253 A CN115589253 A CN 115589253A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
Abstract
The invention discloses an optical fiber line protection method and system based on OLP (on-line processing), and relates to the field of optical fiber communication, wherein the method comprises the following steps: carrying out signal monitoring on the main link optical fiber line according to a signal monitoring device to obtain a main signal monitoring data set; obtaining a power prediction result; obtaining a first failure probability; if the first fault probability is larger than the preset fault probability, acquiring a positive line switching instruction; connecting a spare link optical fiber line to obtain a spare signal test data set; generating a standby line index; and when the standby line index meets the preset standby line index, switching from the main link optical fiber line to the standby link optical fiber line for signal transmission. The technical problem that monitoring protection accuracy for the optical fiber line is not enough in the prior art, and then the signal transmission effect of the optical fiber line is not good is solved. The monitoring protection accuracy of the optical fiber line is improved, and the signal transmission quality of the optical fiber line is improved.
Description
Technical Field
The present invention relates to the field of optical fiber communication, and in particular, to an OLP-based optical fiber line protection method and system.
Background
The optical fiber communication transmission technology is a key technology in the communication field, and with the rapid increase of information transmission requirements, higher-level requirements are provided for the reliability and stability of optical fiber communication transmission. An optical line protection system (OLP) is an automatic monitoring protection system that is independent of a communication transmission system and is established on a fiber physical link. The OLP is combined with the optical fiber line, and the method for optimizing, monitoring and protecting the optical fiber line is researched, so that the method has very important practical significance.
In the prior art, the monitoring and protection accuracy of the optical fiber line is not enough, and the signal transmission effect of the optical fiber line is not good.
Disclosure of Invention
The application provides an optical fiber line protection method and system based on OLP. The problem of among the prior art to the monitoring protection precision of fiber circuit not enough, and then cause the not good technical problem of fiber circuit's signal transmission effect is solved.
In view of the foregoing problems, the present application provides an OLP-based optical fiber line protection method and system.
In a first aspect, the present application provides an OLP-based optical fiber line protection method, where the method is applied to an OLP-based optical fiber line protection system, and the method includes: acquiring a main link optical fiber line and a standby link optical fiber line; performing signal monitoring on the main link optical fiber line according to the signal monitoring device to obtain a main signal monitoring data set; performing power prediction according to the main signal monitoring data to obtain a power prediction result; judging the fault probability according to the power prediction result to obtain a first fault probability; if the first fault probability is larger than the preset fault probability, acquiring a positive line switching instruction; connecting the standby link optical fiber line by the positive line switching instruction, and inputting a signal test sample data set into the standby link optical fiber line for testing to obtain a standby signal test data set; generating a spare line index according to the spare signal test data set; and when the standby line index meets the preset standby line index, switching from the main link optical fiber line to the standby link optical fiber line for signal transmission.
In a second aspect, the present application further provides an OLP-based optical fiber line protection system, where the system includes: the optical fiber line acquisition module is used for acquiring a main link optical fiber line and a standby link optical fiber line; the signal monitoring module is used for carrying out signal monitoring on the main link optical fiber circuit according to the signal monitoring device to obtain a main signal monitoring data set; the power prediction module is used for predicting power according to the main signal monitoring data to obtain a power prediction result; the fault probability judgment module is used for judging the fault probability according to the power prediction result to obtain a first fault probability; the switching instruction acquisition module is used for acquiring a positive line switching instruction if the first fault probability is greater than a preset fault probability; the test module is used for connecting the standby link optical fiber line by the positive line switching instruction and inputting a signal test sample data set into the standby link optical fiber line for testing to obtain a standby signal test data set; the standby line index generating module is used for generating a standby line index according to the standby signal test data set; and the signal transmission module is used for switching the main link optical fiber circuit to the standby link optical fiber circuit for signal transmission when the standby circuit index meets a preset standby circuit index.
One or more technical solutions provided in the present application have at least the following technical effects or advantages:
performing signal monitoring on the main link optical fiber line through a signal monitoring device to obtain a main signal monitoring data set; performing power prediction on the main signal monitoring data to obtain a power prediction result; judging the failure probability of the power prediction result to obtain a first failure probability; if the first fault probability is larger than the preset fault probability, acquiring a positive line switching instruction; connecting a spare link optical fiber circuit according to the positive line switching instruction, inputting a signal test sample data set into the spare link optical fiber circuit for testing to obtain a spare signal test data set, and generating a spare line index according to the spare signal test data set; and when the standby line index meets the preset standby line index, switching from the main link optical fiber line to the standby link optical fiber line for signal transmission. The monitoring protection accuracy of the optical fiber circuit is improved, automatic switching protection of the main link optical fiber circuit and the standby link optical fiber circuit is achieved, and the signal transmission stability and reliability of the optical fiber circuit are improved, so that the technical effect of improving the signal transmission quality of the optical fiber circuit is improved.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments of the present disclosure will be briefly described below. It is to be understood that the drawings in the following description are directed to only some embodiments of the disclosure and are not limiting of the disclosure.
Fig. 1 is a schematic flowchart of an optical fiber line protection method based on OLP according to the present application;
fig. 2 is a schematic flowchart illustrating a process of constraining a backup link optical fiber line in an OLP-based optical fiber line protection method according to the present application;
fig. 3 is a schematic structural diagram of an OLP-based optical fiber line protection system according to the present application.
Description of reference numerals: the system comprises an optical fiber line acquisition module 11, a signal monitoring module 12, a power prediction module 13, a fault probability judgment module 14, a switching instruction acquisition module 15, a test module 16, a standby line index generation module 17 and a signal transmission module 18.
Detailed Description
The application provides an optical fiber line protection method and system based on OLP. The problem of among the prior art to the monitoring protection precision of fiber circuit not enough, and then cause the not good technical problem of fiber circuit's signal transmission effect is solved. The monitoring protection accuracy of the optical fiber circuit is improved, automatic switching protection of the main link optical fiber circuit and the standby link optical fiber circuit is achieved, and the signal transmission stability and reliability of the optical fiber circuit are improved, so that the technical effect of improving the signal transmission quality of the optical fiber circuit is improved.
Example one
Referring to fig. 1, the present application provides an optical fiber line protection method based on OLP, wherein the method is applied to an optical fiber line protection system based on OLP, the system is in communication connection with a signal monitoring device, and the method specifically includes the following steps:
step S100: acquiring a main link optical fiber circuit and a standby link optical fiber circuit;
step S200: performing signal monitoring on the main link optical fiber line according to the signal monitoring device to obtain a main signal monitoring data set;
step S300: performing power prediction according to the main signal monitoring data to obtain a power prediction result;
specifically, the optical fiber line protection system based on the OLP is in communication connection with a main link optical fiber line and a standby link optical fiber line. When the main link optical fiber line carries out real-time signal transmission, the signal monitoring device carries out real-time signal monitoring on the main link optical fiber line to obtain a main signal monitoring data set. The signal monitoring device may be any type of signal monitoring device capable of performing fiber optic signal monitoring in the prior art or a combination thereof. The main signal monitoring data set comprises a plurality of real-time optical fiber signals corresponding to the main link optical fiber circuit and signal transmission parameters such as transmission speed and frequency corresponding to the plurality of real-time optical fiber signals. And further, performing power prediction on the main signal monitoring data to obtain a power prediction result. Illustratively, historical data query is performed based on the main signal monitoring data, a plurality of historical main signal monitoring data is obtained, and a plurality of historical predicted power information corresponding to the plurality of historical main signal monitoring data is obtained. And continuously self-training and learning the plurality of historical main signal monitoring data and the plurality of historical predicted power information to a convergence state, so as to obtain a power prediction model. The power prediction model comprises an input layer, a hidden layer and an output layer and has the function of intelligent power prediction. And inputting the main signal monitoring data as input information into a power prediction model, and performing power prediction on the main link optical fiber circuit at a plurality of prediction time points through the power prediction model to obtain a power prediction result. The power prediction result includes a plurality of predicted power information. The plurality of predicted power information includes predicted power information of the main link optical fiber line corresponding to each of the plurality of predicted time points. The plurality of predicted time points may be future time point information of half an hour in the future, 1 hour in the future, and the like. The method and the device achieve the technical effects of obtaining a reliable main signal monitoring data set and a power prediction result by performing signal monitoring and power prediction on the main link optical fiber circuit and laying a foundation for subsequent fault probability judgment and circuit switching protection on the main link optical fiber circuit.
Step S400: judging the fault probability according to the power prediction result to obtain a first fault probability;
further, step S400 of the present application further includes:
step S410: obtaining the power prediction result, wherein the power prediction result comprises a power prediction time sequence, and the power prediction result corresponds to the power prediction time sequence one by one;
step S420: generating a power prediction distribution chain according to the power prediction result and the power prediction time sequence;
specifically, the power prediction result includes a plurality of pieces of predicted power information corresponding to a plurality of prediction time points. And setting the plurality of prediction time points as a power prediction time sequence, and arranging the plurality of pieces of predicted power information in the power prediction result according to the power prediction time sequence to obtain a power prediction distribution chain. Wherein the power prediction time sequence comprises a plurality of prediction time points in a power prediction result. The power prediction distribution chain includes a plurality of predicted power information arranged according to a power prediction timing sequence. The technical effects that the power prediction distribution chain is constructed through the power prediction result, and data support is provided for the subsequent generation of the first failure probability are achieved.
Step S430: and carrying out Markov chain prediction by using the power prediction distribution sequence chain, acquiring the probability that the power prediction result reaches the expected prediction result under the expected time sequence condition, and outputting the first fault probability.
Further, step S430 of the present application further includes:
step S431: performing power loss analysis by using the power prediction distribution chain to obtain extra power loss;
step S432: establishing a power-loss double distribution chain based on the corresponding relation between the extra power loss and the power prediction distribution chain;
step S433: and performing fault prediction by using the power-loss double distribution chain, and outputting the first fault probability.
Specifically, the power prediction result includes a plurality of pieces of predicted power information corresponding to a plurality of prediction time points. And each piece of predicted power information comprises predicted fault loss power and predicted fixed power of the main link optical fiber circuit corresponding to each predicted time point. And extracting the predicted fault loss power based on the power prediction distribution chain to obtain the extra power loss. Further, matching the extra power loss with the power prediction distribution chain to obtain a corresponding relation, and combining the extra power loss and the power prediction distribution chain to construct a power-loss double distribution chain. Further, based on the expected time sequence condition, the probability that the power prediction result reaches the expected prediction result is predicted through a power-loss double distribution chain, and a first fault probability is obtained.
Wherein the additional power loss comprises a plurality of predicted fault loss powers in a power prediction distribution chain. The power-loss double distribution chain comprises a power prediction distribution chain and a loss prediction distribution chain, and the power prediction distribution chain and the loss prediction distribution chain have a corresponding relation. The loss prediction distribution chain includes additional power losses arranged in accordance with a plurality of prediction time points. The correspondence includes a matching relationship between the extra power loss and the power prediction distribution chain. The expected timing condition includes a plurality of predicted time points, and predicted time range information corresponding to the plurality of predicted time points. The first failure probability comprises a probability that the power prediction result reaches a desired prediction result under a desired timing condition. The expected prediction result comprises expected prediction failure loss power corresponding to the preset and determined main link optical fiber line. Illustratively, the expected prediction result is compared with a plurality of predicted fault loss powers in the power-loss double distribution chain, data volume statistics is carried out on the plurality of predicted fault loss powers not smaller than the expected prediction result, an expected data volume is obtained, and the ratio between the expected data volume and the data volumes of the plurality of predicted fault loss powers in the power-loss double distribution chain is output as a first fault probability. The method and the device achieve the technical effects that the fault prediction is carried out through the power-loss double distribution chain, the accurate first fault probability is obtained, the switching protection accuracy of the main link optical fiber circuit is improved, and the monitoring protection quality of the optical fiber circuit is improved.
Step S500: if the first fault probability is larger than the preset fault probability, acquiring a positive line switching instruction;
step S600: connecting the standby link optical fiber line by the positive line switching instruction, and inputting a signal test sample data set into the standby link optical fiber line for testing to obtain a standby signal test data set;
step S700: generating a spare line index according to the spare signal test data set;
specifically, whether the first failure probability is greater than a preset failure probability is judged, and if the first failure probability is greater than the preset failure probability, a positive line switching instruction is obtained. In addition, in order to ensure that the spare link optical fiber line can carry out normal signal transmission, the spare link optical fiber line is periodically tested according to the signal test sample data set, and a spare signal test data set is obtained. And evaluating the standby link optical fiber line according to the standby signal test data set to obtain a standby line index. The preset fault probability comprises a probability threshold value of the power prediction result reaching the expected prediction result under the preset and determined expected time sequence condition. The positive line switching instruction is instruction information used for representing that the first failure probability is larger than the preset failure probability and the main link optical fiber line needs to be switched. The signal test sample data set comprises a plurality of sample fiber signals. The plurality of sample optical fiber signals can be obtained through big data acquisition, historical data query and the like. The spare signal test data set comprises signal transmission parameters such as transmission speed, frequency and the like of a spare link optical fiber line for transmitting a plurality of sample optical fiber signals. The spare line index includes a plurality of signal transmission evaluation coefficients such as a signal transmission speed evaluation coefficient and a signal transmission stability evaluation coefficient of the spare link optical fiber line. For example, the larger the transmission speed at which the spare link optical fiber line transmits a plurality of sample optical fiber signals, the higher the corresponding signal transmission speed evaluation coefficient. The technical effect that whether the first fault probability is larger than the preset fault probability or not is judged, and the positive line switching instruction is generated adaptively, so that the timeliness and the accuracy of monitoring and protecting the optical fiber line are improved is achieved.
Step S800: and when the standby line index meets the preset standby line index, switching from the main link optical fiber line to the standby link optical fiber line for signal transmission.
Further, step S800 of the present application further includes:
step S810: acquiring a line switching transient sequence;
step S820: according to the line switching instant sequence, obtaining a tail state signal sequence before the main link optical fiber line is switched to the standby link optical fiber line;
step S830: according to the line switching instant sequence, obtaining an initial state signal sequence after the main link optical fiber line is switched to the standby link optical fiber line;
step 840: generating a switching delay index according to the final state signal time sequence and the initial state signal time sequence;
step S850: generating signal adjustment information according to the switching delay index;
step S860: and adjusting the signal of the spare link optical fiber line based on the signal adjusting information.
Specifically, whether the spare line index meets the preset spare line index is judged, and when the spare line index completely meets the preset spare line index, the main link optical fiber line is switched to the spare link optical fiber line for signal transmission according to the received positive line switching instruction. Meanwhile, the line switching time sequence when the main link optical fiber line is switched to the standby link optical fiber line is monitored, and a line switching transient time sequence is obtained. The line switching transient sequence comprises a final state signal sequence and an initial state signal sequence. And further, performing difference calculation on the timing sequence of the final state signal and the timing sequence of the initial state signal to obtain a switching delay index, and generating signal adjustment information according to the switching delay index. And adjusting the signal of the optical fiber line of the standby link according to the signal adjustment information. The preset spare line index comprises a plurality of signal transmission evaluation coefficient thresholds, such as a signal transmission speed evaluation coefficient threshold, a signal transmission stability evaluation coefficient threshold and the like, of a preset spare link optical fiber line. And the final state signal time sequence comprises the transmission time of the last real-time optical fiber signal in the main link optical fiber circuit before the main link optical fiber circuit is switched to the standby link optical fiber circuit. The initial state signal sequence comprises the transmission time of the first optical fiber signal in the standby link optical fiber circuit after the main link optical fiber circuit is switched to the standby link optical fiber circuit. The switching delay index comprises a difference value between a final state signal time sequence and an initial state signal time sequence. The signal adjustment information includes a signal transmission speed adjustment parameter, a signal transmission frequency adjustment parameter, and the like. The technical effects that when the indexes of the standby circuit meet the preset indexes of the standby circuit, a positive circuit switching instruction is executed, the main link optical fiber circuit is switched to the standby link optical fiber circuit for signal transmission, the circuit switching time sequence when the main link optical fiber circuit is switched to the standby link optical fiber circuit is monitored and analyzed, reliable signal adjustment information is obtained, signals in the standby link optical fiber circuit are adjusted according to the signal adjustment information, and the signal transmission quality of the optical fiber circuit is improved are achieved.
Further, as shown in fig. 2, after step S800, the method further includes:
step S910: acquiring a real-time transmission line of a target optical path;
step S920: judging whether the real-time transmission line is the spare link optical fiber line or not, and acquiring information of the spare link optical fiber line if the real-time transmission line is the spare link optical fiber line;
step S930: generating a standby constraint condition based on the information of the standby link optical fiber circuit;
step S940: and restricting the switching to the standby link optical fiber line according to the standby restriction condition.
Specifically, it is determined whether the real-time transmission line is a backup link optical fiber line, and if the real-time transmission line is a backup link optical fiber line, a backup constraint condition is obtained based on information of the backup link optical fiber line. And constraining the spare link optical fiber line for real-time signal transmission according to the spare constraint condition. The real-time transmission line of the target optical path is any optical fiber line for real-time signal transmission. The information of the spare link optical fiber line comprises data information such as maximum signal transmission quantity, maximum signal transmission speed and the like corresponding to the spare link optical fiber line. The backup constraints include information on the backup link fiber optic line. The technical effects of restraining the optical fiber circuit of the standby link through the standby restraint condition and improving the signal transmission stability of the optical fiber circuit are achieved.
Further, step S920 of the present application further includes:
step S921: if the real-time transmission line is the standby link optical fiber line, judging whether the main link optical fiber line is in a maintenance state;
step S922: if the main link optical fiber circuit is in a maintenance state, generating a maintenance limit cycle based on the standby constraint condition;
step S923: and reminding the maintenance time of the main link optical fiber circuit according to the maintenance limit period.
Specifically, if the real-time transmission line is a spare link optical fiber line, it is determined whether the main link optical fiber line is in a maintenance state. And if the main link optical fiber circuit is in a maintenance state, determining a maintenance limit period according to the standby constraint condition self-adaptive setting, and performing maintenance duration reminding on the main link optical fiber circuit in the maintenance state according to the maintenance limit period. And the maintenance limiting period comprises constraint maintenance duration information corresponding to the main link optical fiber circuit in a maintenance state. Illustratively, in generating the maintenance limit period, the smaller the maximum signal transmission amount of the backup link optical fiber line in the backup constraint condition and the lower the maximum signal transmission speed, the shorter the corresponding maintenance limit period. The method and the device achieve the technical effect of reminding the maintenance duration of the main link optical fiber circuit in the maintenance state through the maintenance limit period, thereby improving the comprehensiveness of monitoring and protecting the optical fiber circuit.
Further, step S922 of the present application further includes:
step S9221: if the main link optical fiber circuit is in a maintenance completion state, calling the signal test sample data set to input the main link optical fiber circuit for testing, and acquiring a main circuit index after the main link optical fiber circuit is maintained;
step S9222: when the main line index meets a preset main line index, acquiring an inverse line switching instruction;
step S9223: and switching the standby link optical fiber line to the main link optical fiber line for signal transmission according to the reverse line switching instruction.
Specifically, if the main link optical fiber line is in the maintenance state, the main link optical fiber line is switched to the maintenance completion state after the main link optical fiber line is completed with maintenance. And testing the main link optical fiber line in a maintenance completion state through the obtained signal test sample data set to obtain a main line index. And further, judging whether the main line index meets the preset main line index, acquiring a reverse line switching instruction when the main line index completely meets the preset main line index, and switching from the standby link optical fiber line to the main link optical fiber line for signal transmission according to the reverse line switching instruction. The main line index includes a plurality of signal transmission evaluation coefficients such as a signal transmission speed evaluation coefficient and a signal transmission stability evaluation coefficient corresponding to the main link optical fiber line in the maintenance completion state. The preset main line index comprises a plurality of signal transmission evaluation coefficient thresholds, such as a signal transmission speed evaluation coefficient threshold, a signal transmission stability evaluation coefficient threshold and the like, of a preset main link optical fiber line. The reverse line switching instruction is instruction information used for representing that the main line index completely meets the preset main line index and switching from the standby link optical fiber line to the main link optical fiber line for signal transmission. The technical effect of improving the reliability and the accuracy of switching protection of the optical fiber circuit by testing and judging the main link optical fiber circuit in a maintenance completion state and adaptively generating the reverse circuit switching instruction is achieved.
In summary, the method for protecting an optical fiber line based on OLP provided by the present application has the following technical effects:
1. performing signal monitoring on the main link optical fiber line through a signal monitoring device to obtain a main signal monitoring data set; performing power prediction on the main signal monitoring data to obtain a power prediction result; judging the fault probability of the power prediction result to obtain a first fault probability; if the first fault probability is larger than the preset fault probability, acquiring a positive line switching instruction; connecting a standby link optical fiber line according to a positive line switching instruction, inputting a signal test sample data set into the standby link optical fiber line for testing to obtain a standby signal test data set, and generating a standby line index according to the standby signal test data set; and when the standby line index meets the preset standby line index, switching from the main link optical fiber line to the standby link optical fiber line for signal transmission. The monitoring protection accuracy of the optical fiber circuit is improved, automatic switching protection of the main link optical fiber circuit and the standby link optical fiber circuit is realized, and the signal transmission stability and reliability of the optical fiber circuit are improved, so that the technical effect of improving the signal transmission quality of the optical fiber circuit is achieved.
2. The fault prediction is carried out through the power-loss double distribution chain, and the accurate first fault probability is obtained, so that the switching protection accuracy of the main link optical fiber circuit is improved, and the monitoring protection quality of the optical fiber circuit is improved.
3. When the spare line index meets the preset spare line index, a positive line switching instruction is executed, the main link optical fiber line is switched to the spare link optical fiber line for signal transmission, the line switching time sequence when the main link optical fiber line is switched to the spare link optical fiber line is monitored and analyzed, reliable signal adjustment information is obtained, signals in the spare link optical fiber line are adjusted according to the signal adjustment information, and the signal transmission quality of the optical fiber line is improved.
Example two
Based on the same inventive concept as the method for protecting an optical fiber line based on OLP in the foregoing embodiment, the present invention further provides an optical fiber line protection system based on OLP, and please refer to fig. 3, where the system includes:
the optical fiber line acquisition module 11, the optical fiber line acquisition module 11 is configured to acquire a main link optical fiber line and a standby link optical fiber line;
the signal monitoring module 12, the signal monitoring module 12 is configured to perform signal monitoring on the main link optical fiber line according to the signal monitoring device, and obtain a main signal monitoring data set;
the power prediction module 13 is configured to perform power prediction according to the main signal monitoring data to obtain a power prediction result;
the failure probability judging module 14 is configured to judge a failure probability according to the power prediction result to obtain a first failure probability;
a switching instruction obtaining module 15, where the switching instruction obtaining module 15 is configured to obtain a positive line switching instruction if the first failure probability is greater than a preset failure probability;
the test module 16 is configured to connect the spare link optical fiber line with the positive line switching instruction, and input a signal test sample data set to the spare link optical fiber line for testing to obtain a spare signal test data set;
a spare line index generating module 17, where the spare line index generating module 17 is configured to generate a spare line index according to the spare signal test data set;
and a signal transmission module 18, where the signal transmission module 18 is configured to switch the main link optical fiber line to the standby link optical fiber line for signal transmission when the standby line index meets a preset standby line index.
Further, the system further comprises:
a real-time transmission line determination module for acquiring a real-time transmission line of a target optical path;
the line information acquisition module is used for judging whether the real-time transmission line is the standby link optical fiber line or not, and acquiring information of the standby link optical fiber line if the real-time transmission line is the standby link optical fiber line;
a standby constraint condition generation module, configured to generate a standby constraint condition based on information of the standby link optical fiber line;
a line constraint module to constrain switching to the backup link fiber optic line with the backup constraint.
Further, the system further comprises:
the state judgment module is used for judging whether the main link optical fiber line is in a maintenance state or not if the real-time transmission line is the standby link optical fiber line;
a maintenance limit cycle generation module, configured to generate a maintenance limit cycle based on the standby constraint condition if the main link optical fiber line is in a maintenance state;
and the reminding module is used for reminding the maintenance duration of the main link optical fiber circuit according to the maintenance limit cycle.
Further, the system further comprises:
the first execution module is used for calling the signal test sample data set to be input into the main link optical fiber circuit for testing if the main link optical fiber circuit is in a maintenance completion state, and acquiring a main circuit index after the main link optical fiber circuit is maintained;
the reverse circuit switching instruction acquisition module is used for acquiring a reverse circuit switching instruction when the main circuit index meets a preset main circuit index;
and the second execution module is used for switching the standby link optical fiber line to the main link optical fiber line for signal transmission according to the reverse line switching instruction.
Further, the system further comprises:
the time sequence acquisition module is used for acquiring a line switching transient time sequence;
the tail state signal time sequence determining module is used for obtaining a tail state signal time sequence before the main link optical fiber line is switched to the standby link optical fiber line according to the line switching transient time sequence;
the initial state signal timing sequence determining module is used for obtaining an initial state signal timing sequence after the main link optical fiber circuit is switched to the standby link optical fiber circuit according to the circuit switching transient timing sequence;
the switching delay index generating module is used for generating a switching delay index according to the final state signal time sequence and the initial state signal time sequence;
the signal adjustment information generation module is used for generating signal adjustment information according to the switching delay index;
a signal adjustment module for adjusting the signal on the spare link optical fiber line based on the signal adjustment information.
Further, the system further comprises:
the power prediction result determining module is used for obtaining the power prediction result, wherein the power prediction result comprises a power prediction time sequence, and the power prediction result is in one-to-one correspondence with the power prediction time sequence;
the power prediction distribution chain generation module is used for generating a power prediction distribution chain according to the power prediction result and the power prediction time sequence;
and the first failure probability determination module is used for carrying out Markov chain prediction by using the power prediction distribution sequence chain, acquiring the probability that the power prediction result reaches the expected prediction result under the expected time sequence condition, and outputting the first failure probability.
Further, the system further comprises:
the power loss analysis module is used for carrying out power loss analysis by using the power prediction distribution chain to obtain extra power loss;
a dual distribution chain building module, configured to build a power-loss dual distribution chain based on a correspondence between the extra power loss and the power prediction distribution chain;
and the fault probability output module is used for performing fault prediction by using the power-loss double distribution chain and outputting the first fault probability.
The OLP-based optical fiber line protection system provided by the embodiment of the invention can execute the OLP-based optical fiber line protection method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
Each included module is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be realized; in addition, the specific names of the functional modules are only for convenience of distinguishing from each other and are not used for limiting the protection scope of the present invention.
The application provides an optical fiber line protection method based on OLP, wherein the method is applied to an optical fiber line protection system based on OLP, and the method comprises the following steps: performing signal monitoring on the main link optical fiber line through a signal monitoring device to obtain a main signal monitoring data set; performing power prediction on the main signal monitoring data to obtain a power prediction result; judging the fault probability of the power prediction result to obtain a first fault probability; if the first fault probability is larger than the preset fault probability, acquiring a positive line switching instruction; connecting a standby link optical fiber line according to a positive line switching instruction, inputting a signal test sample data set into the standby link optical fiber line for testing to obtain a standby signal test data set, and generating a standby line index according to the standby signal test data set; and when the standby line index meets the preset standby line index, switching from the main link optical fiber line to the standby link optical fiber line for signal transmission. The problem of among the prior art to the monitoring protection precision of fiber circuit not enough, and then cause the not good technical problem of fiber circuit's signal transmission effect is solved. The monitoring protection accuracy of the optical fiber circuit is improved, automatic switching protection of the main link optical fiber circuit and the standby link optical fiber circuit is realized, and the signal transmission stability and reliability of the optical fiber circuit are improved, so that the technical effect of improving the signal transmission quality of the optical fiber circuit is achieved.
It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.
Claims (8)
1. An OLP-based optical fiber line protection method is applied to a protection system for OLP optical fiber line identification, the system is connected with a signal monitoring device in a communication mode, and the method comprises the following steps:
acquiring a main link optical fiber circuit and a standby link optical fiber circuit;
performing signal monitoring on the main link optical fiber circuit according to the signal monitoring device to obtain a main signal monitoring data set;
performing power prediction according to the main signal monitoring data to obtain a power prediction result;
judging the fault probability according to the power prediction result to obtain a first fault probability;
if the first fault probability is larger than the preset fault probability, acquiring a positive line switching instruction;
connecting the standby link optical fiber line by the positive line switching instruction, and inputting a signal test sample data set into the standby link optical fiber line for testing to obtain a standby signal test data set;
generating a spare line index according to the spare signal test data set;
and when the standby line index meets a preset standby line index, switching from the main link optical fiber line to the standby link optical fiber line for signal transmission.
2. The method of claim 1, wherein the method further comprises:
acquiring a real-time transmission line of a target optical path;
judging whether the real-time transmission line is the spare link optical fiber line or not, and acquiring information of the spare link optical fiber line if the real-time transmission line is the spare link optical fiber line;
generating a standby constraint condition based on the information of the standby link optical fiber circuit;
and restricting the optical fiber line switched to the standby link according to the standby restriction condition.
3. The method of claim 2, wherein if the real-time transmission line is after the backup link fiber line, the method further comprises:
if the real-time transmission line is the standby link optical fiber line, judging whether the main link optical fiber line is in a maintenance state;
if the main link optical fiber circuit is in a maintenance state, generating a maintenance limit cycle based on the standby constraint condition;
and reminding the maintenance time length of the main link optical fiber circuit according to the maintenance limit period.
4. The method of claim 3, wherein after the main link fiber optic line is in a service state, further comprising:
if the main link optical fiber line is in a maintenance completion state, calling the signal test sample data set to input the main link optical fiber line for testing, and acquiring a main line index after the main link optical fiber line is maintained;
when the main line index meets a preset main line index, acquiring an inverse line switching instruction;
and switching from the standby link optical fiber line to the main link optical fiber line for signal transmission according to the reverse line switching instruction.
5. The method of claim 1, wherein switching from the primary link fiber optic line to the backup link fiber optic line for signal transmission, the method further comprising:
acquiring a line switching transient sequence;
according to the line switching instant sequence, obtaining a tail state signal sequence before the main link optical fiber line is switched to the standby link optical fiber line;
obtaining an initial state signal time sequence after the main link optical fiber line is switched to the standby link optical fiber line according to the line switching instant time sequence;
generating a switching delay index according to the final state signal time sequence and the initial state signal time sequence;
generating signal adjustment information according to the switching delay index;
and adjusting the signal of the spare link optical fiber line based on the signal adjusting information.
6. The method of claim 1, wherein the failure probability determination is performed based on the power prediction to obtain a first failure probability, the method further comprising:
obtaining the power prediction result, wherein the power prediction result comprises a power prediction time sequence, and the power prediction result is in one-to-one correspondence with the power prediction time sequence;
generating a power prediction distribution chain according to the power prediction result and the power prediction time sequence;
and carrying out Markov chain prediction by using the power prediction distribution sequence chain, acquiring the probability that the power prediction result reaches the expected prediction result under the expected time sequence condition, and outputting the first fault probability.
7. The method of claim 6, wherein the method further comprises:
performing power loss analysis by using the power prediction distribution chain to obtain extra power loss;
establishing a power-loss double distribution chain based on the corresponding relation between the extra power loss and the power prediction distribution chain;
and performing fault prediction by using the power-loss double distribution chain, and outputting the first fault probability.
8. An OLP-based fiber optic line protection system communicatively coupled to a signal monitoring device, the system comprising:
the optical fiber line acquisition module is used for acquiring a main link optical fiber line and a standby link optical fiber line;
the signal monitoring module is used for carrying out signal monitoring on the main link optical fiber circuit according to the signal monitoring device to obtain a main signal monitoring data set;
the power prediction module is used for predicting power according to the main signal monitoring data to obtain a power prediction result;
the fault probability judgment module is used for judging the fault probability according to the power prediction result to obtain a first fault probability;
the switching instruction acquisition module is used for acquiring a positive line switching instruction if the first fault probability is greater than a preset fault probability;
the test module is used for connecting the standby link optical fiber circuit with the positive circuit switching instruction, inputting a signal test sample data set into the standby link optical fiber circuit for testing, and obtaining a standby signal test data set;
the standby line index generating module is used for generating a standby line index according to the standby signal test data set;
and the signal transmission module is used for switching the main link optical fiber circuit to the standby link optical fiber circuit for signal transmission when the standby circuit index meets a preset standby circuit index.
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