CN115389175B - Method, device and equipment for monitoring external force damage of optical cable and storage medium - Google Patents
Method, device and equipment for monitoring external force damage of optical cable and storage medium Download PDFInfo
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Abstract
The invention relates to the technical field of optical cable monitoring, in particular to a method, a device, equipment and a storage medium for monitoring external force damage of an optical cable. The method comprises the steps of receiving a vibration waveform returned by an optical cable based on DAS measuring signals, and analyzing the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period; determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information; receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal, analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type, and generating abnormal loss information; generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable; thereby the problem of can't combine the vibrations condition and the optical cable optic fibre quality condition to carry out effective monitoring to the optical cable among the prior art has been solved.
Description
Technical Field
The invention relates to the technical field of optical cable monitoring, in particular to a method, a device, equipment and a storage medium for monitoring external force damage of an optical cable.
Background
The existing optical cable external force damage monitoring scheme mainly sets a vibration threshold on an optical cable in a segmented mode, then collects vibration of the optical cable, then analyzes a seismic source, finds a section exceeding the threshold, and can generate warning of the existing optical cable external force damage on-line monitoring system, although warning can be sent to a manager when external force damage exists nearby the optical cable, due to the fact that in actual conditions, multiple conditions capable of generating optical cable vibration exist, a lot of false warning can be generated on the premise that an existing algorithm cannot completely identify the vibration of the external force damage such as an excavator and manual construction, the manager only needs to give a warning, the manager needs to check the personnel on site, the false warning is too many, so that patrolling personnel can question the system, the patrolling time and the energy of the workers can be wasted, and the workload is increased.
Under the condition that construction exists in each range (such as each defense area) of the optical cable, seismic sources caused by some constructions are inevitable, the seismic sources can cause the existing optical cable external force damage monitoring scheme to generate false alarm, and the optical fiber quality condition cannot be monitored. The scheme for effectively monitoring the optical cable by combining the vibration condition and the optical fiber quality condition of the optical cable is lacked in the prior art.
In conclusion, the problem that the optical cable cannot be effectively monitored in combination with the vibration condition and the optical cable optical fiber quality condition exists in the prior art.
Disclosure of Invention
The application mainly aims to provide a method, a device, equipment and a storage medium for monitoring external force damage of an optical cable, so as to solve the problem that the optical cable cannot be effectively monitored in combination with vibration conditions and optical cable and optical fiber quality conditions in the prior art.
The invention provides a method for monitoring external force damage of an optical cable, which comprises the following steps: receiving a vibration waveform returned by an optical cable based on a measurement signal of the DAS, analyzing the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period; determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value; receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal according to a preset detection time period; generating a corresponding data waveform based on the reflected light signal through OTDR, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result; extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak; calculating, by the OTDR, a corresponding loss value based on the reflected light signal; determining a loss risk value corresponding to the defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to the loss threshold value and the loss risk value; and generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable.
Optionally, in a first implementation manner of the first aspect of the present invention, the analyzing the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period includes: extracting amplitude information and frequency information from the vibration waveform; determining a corresponding reference risk value based on the amplitude information according to a preset reference risk value table; determining a corresponding risk coefficient based on the frequency information according to a preset risk coefficient table; determining a corresponding shock risk value based on the baseline risk value and the risk factor.
Optionally, in a second implementation manner of the first aspect of the present invention, the extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak includes: and extracting a slope change point and a characteristic reflection peak from the waveform comparison result according to a pre-trained event analysis model, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak.
Optionally, in a third implementation manner of the first aspect of the present invention, the determining, based on the loss value, the event point, and the event type, a loss risk value corresponding to the defense area includes: extracting the loss value, the event point and the event type corresponding to the defense area in the acquisition time period, and calculating the increment of the event point and the increment of the loss value; and determining a loss risk value of the defense area in the acquisition time period according to the event point increment and the loss value increment.
Optionally, in a fourth implementation manner of the first aspect of the present invention, the determining a corresponding shock threshold and a corresponding loss threshold according to the defense area and the acquisition time period includes: determining corresponding construction information in a preset construction information table based on the defense area; extracting construction disturbance grades corresponding to all time periods from the construction information, and determining the construction disturbance grades of the defense areas in the acquisition time periods based on the acquisition time periods and the construction disturbance grades corresponding to all time periods; and determining a corresponding initial vibration threshold value and an initial loss threshold value in a preset optical cable equipment information table according to the defense area, and adjusting the initial vibration threshold value and the initial loss threshold value according to the construction disturbance grade to obtain a vibration threshold value and a loss threshold value.
Optionally, in a fifth implementation manner of the first aspect of the present invention, the generating abnormal vibration information according to the vibration threshold and the vibration risk value includes: comparing the vibration risk value with the vibration threshold value, and calculating the times when the vibration risk value exceeds the vibration threshold value in the collection time period of the defense area to obtain risk times; and determining a risk frequency threshold value of the defense area in the acquisition time period according to the construction disturbance grade, and generating abnormal vibration information according to the risk frequency and the risk frequency threshold value.
Optionally, in a sixth implementation manner of the first aspect of the present invention, the displaying the monitoring information on a routing graph corresponding to the optical cable includes: determining a corresponding alarm grade table and a corresponding monitoring identifier according to the defense area and the acquisition time period, wherein the monitoring identifier is a communication identifier corresponding to a monitoring information platform of the defense area for monitoring the optical cable in the acquisition time period; determining an alarm level in the alarm level table based on the loss risk value when the loss risk value is greater than the loss threshold value; determining an alarm level in the alarm level table based on the risk number and the risk number threshold when the loss risk value is not greater than the loss threshold; and displaying the monitoring information on a routing graph corresponding to the optical cable based on the alarm level, and sending the monitoring information and the alarm level corresponding to the monitoring information to a corresponding monitoring information platform based on the monitoring identification, wherein the routing graph corresponding to the optical cable is displayed on a preset display interface.
The second aspect of the present invention provides a device for monitoring external force damage of an optical cable, including: the receiving module is used for receiving a vibration waveform returned by the optical cable based on the DAS measuring signal, analyzing the vibration waveform and obtaining a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period; the first generation module is used for determining a corresponding vibration threshold value and a corresponding loss threshold value according to the defense area and the acquisition time period and generating abnormal vibration information according to the vibration threshold value and the vibration risk value; the analysis module is used for receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal according to a preset detection time period; generating a corresponding data waveform based on the reflected light signal through OTDR, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result; extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak; calculating, by the OTDR, a corresponding loss value based on the reflected light signal; a second generation module, configured to determine a loss risk value corresponding to the defense area based on the loss value, the event point, and the event type, and generate abnormal loss information according to the loss threshold and the loss risk value; and the display module is used for generating monitoring information according to the abnormal vibration information and the abnormal loss information and displaying the monitoring information on a routing diagram corresponding to the optical cable.
Optionally, in a first implementation manner of the second aspect of the present invention, the parsing module includes: an extraction unit for extracting amplitude information and frequency information from the vibration waveform; the first determining unit is used for determining a corresponding reference risk value based on the amplitude information according to a preset reference risk value table; the second determining unit is used for determining a corresponding risk coefficient based on the frequency information according to a preset risk coefficient table; a third determination unit for determining a corresponding shock risk value based on the reference risk value and the risk factor.
Optionally, in a second implementation manner of the second aspect of the present invention, the analysis module is further configured to extract a slope change point and a characteristic reflection peak from the waveform comparison result according to a pre-trained event analysis model, and determine a corresponding event point and an event type according to the slope change point and the characteristic reflection peak.
Optionally, in a third implementation manner of the second aspect of the present invention, the second generating module includes: the second calculation unit is used for extracting the loss value, the event point and the event type corresponding to the defense area in the acquisition time period, and calculating the increment of the event point and the increment of the loss value; and a fifth determining unit, configured to determine a loss risk value of the defense area within the acquisition time period according to the event point increment and the loss value increment.
Optionally, in a fourth implementation manner of the second aspect of the present invention, the first generating module includes a threshold determining unit, configured to determine, based on the defense area, corresponding construction information in a preset construction information table; extracting construction disturbance grades corresponding to all time periods from the construction information, and determining the construction disturbance grades of the defense areas in the acquisition time periods based on the acquisition time periods and the construction disturbance grades corresponding to all time periods; and determining a corresponding initial vibration threshold value and an initial loss threshold value in a preset optical cable equipment information table according to the defense area, and adjusting the initial vibration threshold value and the initial loss threshold value according to the construction disturbance level to obtain a vibration threshold value and a loss threshold value.
Optionally, in a fifth implementation manner of the second aspect of the present invention, the first generation module further includes a generation unit, configured to compare the vibration risk value with the vibration threshold, and calculate the number of times when the vibration risk value exceeds the vibration threshold within the collection time period of the defense area, so as to obtain a risk number; and determining a risk frequency threshold of the defense area in the acquisition time period according to the construction disturbance level, and generating abnormal vibration information according to the risk frequency and the risk frequency threshold.
Optionally, in a sixth implementation manner of the second aspect of the present invention, the display module includes: a sixth determining unit, configured to determine a corresponding alarm level table and a corresponding monitoring identifier according to the defense area and the acquisition time period, where the monitoring identifier is a communication identifier corresponding to a monitoring information platform that monitors the defense area of the optical cable in the acquisition time period; a seventh determining unit, configured to determine an alarm level in the alarm level table based on the loss risk value when the loss risk value is greater than the loss threshold value; an eighth determining unit, configured to determine, when the loss risk value is not greater than the loss threshold, an alarm level in the alarm level table based on the risk number and the risk number threshold; and the display unit is used for displaying the monitoring information on the routing graph corresponding to the optical cable based on the alarm level and sending the monitoring information and the alarm level corresponding to the monitoring information to a corresponding monitoring information platform based on the monitoring identifier, wherein the routing graph corresponding to the optical cable is displayed on a preset display interface.
A third aspect of the present invention provides a computer apparatus comprising: a memory and at least one processor, the memory having instructions stored therein; the at least one processor invokes the instructions in the memory to cause the computer device to perform the steps of the method for monitoring for external force damage to an optical fiber cable described above.
A fourth aspect of the present invention provides a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the steps of the above-mentioned method for monitoring external force damage to an optical cable.
In the technical scheme of the invention, the method specifically comprises the steps of receiving a vibration waveform returned by an optical cable based on DAS measuring signals, analyzing the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on pulse light signals acquired from the optical cable in the acquisition time period; determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value; receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal, and analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type; determining a loss risk value corresponding to a defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to a loss threshold value and the loss risk value; generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable; the method comprises the steps of receiving and analyzing a vibration waveform of the DAS to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, and determining a vibration condition corresponding to the defense area based on the vibration risk value and a vibration threshold value; receiving a reflected light signal returned by an optical cable based on an OTDR measuring signal and analyzing the reflected light signal to obtain a loss value, an event point and an event type, determining a loss risk value corresponding to a defense area, and determining the quality condition of an optical fiber of the optical cable based on a loss threshold value preset by the loss risk value; monitoring information is generated according to the abnormal vibration information and the abnormal loss information, and the monitoring information is displayed on a routing diagram corresponding to the optical cable, so that the vibration condition and the optical cable optical fiber quality condition are effectively monitored, and the problem that the optical cable cannot be effectively monitored according to the vibration condition and the optical cable optical fiber quality condition in the prior art is solved.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of a method for monitoring external force damage to an optical fiber cable according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the method for monitoring external force damage to an optical fiber cable according to the embodiment of the invention;
FIG. 3 is a schematic diagram of a third embodiment of the method for monitoring external force damage to an optical cable according to the embodiment of the present invention;
FIG. 4 is a schematic view of an embodiment of a device for monitoring external force damage to a fiber optic cable according to an embodiment of the present invention;
FIG. 5 is a schematic view of another embodiment of a device for monitoring external force damage to a fiber optic cable according to an embodiment of the present invention;
FIG. 6 is a diagram of an embodiment of a computer device in an embodiment of the invention.
Detailed Description
In order to solve the problem that the optical cable cannot be effectively monitored by combining the vibration condition and the optical cable optical fiber quality condition in the prior art, the application provides a monitoring method, a monitoring device, monitoring equipment and a storage medium for external force damage of the optical cable. The method comprises the steps of receiving a vibration waveform returned by an optical cable based on DAS measuring signals, analyzing the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on pulse light signals acquired from the optical cable in the acquisition time period; determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value; receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal, and performing loss analysis on the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type; determining a loss risk value corresponding to the defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to the loss threshold value and the loss risk value; generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable; the method comprises the steps of receiving and analyzing a vibration waveform of the DAS to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, and determining a vibration condition corresponding to the defense area based on the vibration risk value and a vibration threshold value; receiving a reflected light signal returned by an optical cable based on an OTDR measuring signal and analyzing the reflected light signal to obtain a loss value, an event point and an event type, determining a loss risk value corresponding to a defense area, and determining the quality condition of an optical fiber of the optical cable based on a loss threshold value preset by the loss risk value; monitoring information is generated according to the abnormal vibration information and the abnormal loss information, and the monitoring information is displayed on a routing diagram corresponding to the optical cable, so that the effective monitoring of the vibration condition and the optical cable optical fiber quality condition is combined, and the problem that the optical cable cannot be effectively monitored by combining the vibration condition and the optical cable optical fiber quality condition in the prior art is solved.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," or "having," and any variations thereof, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For convenience of understanding, a specific flow of the embodiment of the present invention is described below, and referring to fig. 1, a first embodiment of the method for monitoring external force damage of an optical cable in the embodiment of the present invention is implemented by the following steps:
101. receiving a vibration waveform returned by the optical cable based on the DAS measuring signal, analyzing the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period;
in this step, the DAS (Distributed Optical Fiber Sensing System) is a Distributed Optical Fiber acoustic wave Sensing System, wherein the Distributed Optical Fiber acoustic wave Sensing System is a comprehensive novel Distributed Optical Fiber Sensing technology System that integrates various subjects such as optics, electronics, mechanical and digital signal processing, based on the rayleigh scattering effect generated by Optical signals in the Optical Fiber propagation process and the Optical Time Domain Reflectometry (OTDR) principle;
in this step, the DAS has a measurement signal generation module configured to generate measurement signals of the DAS.
102. Determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value;
in this step, the defense area is a preset section range on the optical cable, for example, the defense area may be determined on a preset defense area map based on the geographic location of the optical cable.
For this step, it can be specifically realized by the following means:
determining a corresponding vibration threshold value and a corresponding loss threshold value in a preset vibration threshold value table and a preset loss threshold value table based on the defense area and the acquisition time period;
and in the acquisition time period, calculating the times that the vibration risk value exceeds the vibration threshold value to obtain abnormal vibration information.
In practical applications, the abnormal vibration information may also be obtained by:
recording the frequency that the vibration risk value exceeds the vibration threshold as risk frequency, and determining a corresponding risk frequency threshold in a preset risk frequency threshold table based on the defense area;
judging whether the risk times are larger than the risk time threshold value or not;
if so, calculating a difference value between the risk times and the risk time threshold value to obtain abnormal vibration information;
and if not, calculating the proportion of the risk times to the risk time threshold value to obtain abnormal vibration information.
103. Receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal according to a preset detection time period; generating a corresponding data waveform based on the reflected light signal through OTDR, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result; extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak; calculating, by the OTDR, a corresponding loss value based on the reflected light signal;
in this step, the OTDR is an optical time-domain reflectometer (OTDR), wherein the optical time-domain reflectometer (OTDR) is an apparatus for analyzing a measurement curve to know several properties of an optical fiber, such as uniformity, defect, fracture, and joint coupling. The optical fiber attenuation measuring device is manufactured according to the backward scattering and Fresnel backward principle of light, obtains attenuation information by utilizing the backward scattering light generated when the light propagates in the optical fiber, can be used for measuring the attenuation of the optical fiber, the joint loss, the positioning of an optical fiber fault point, knowing the loss distribution condition of the optical fiber along the length and the like, and is an essential tool in the construction, maintenance and monitoring of the optical cable.
For example, in the embodiment of the present application, the OTDR may be set to perform detection according to a preset detection time period, or may be indicated to perform detection according to the preset detection time period.
For this step, it can be specifically realized by the following manner:
generating a corresponding data waveform based on the reflected light signal through an optical time domain reflectometer, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result;
extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak;
and calculating a corresponding loss value based on the reflected light signal through the optical time domain reflectometer.
104. Determining a loss risk value corresponding to the defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to the loss threshold value and the loss risk value;
in this step, the determining a loss risk value corresponding to the defense area based on the loss value, the event point, and the event type includes:
calculating a change value of the loss value in the acquisition time period, determining a reference loss risk value according to the change value of the loss value in the acquisition time period, for example, the change value of the loss value in the acquisition time period includes an increase of the loss value, taking a start time node and an end time node of the acquisition time period, and subtracting the loss value corresponding to the start time node from the loss value corresponding to the end time node to obtain the increase of the loss value;
determining a corresponding loss risk adjustment value in a preset loss risk adjustment table according to the event point and the event type;
determining a loss risk value corresponding to a defense area based on the reference loss risk value and the loss risk adjustment value, for example, accumulating the reference loss risk value and the loss risk adjustment value to obtain a loss risk value corresponding to the defense area.
105. And generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable.
In the step, a routing diagram corresponding to the optical cable is displayed on a preset display interface;
for this step, it can be specifically realized by the following means:
determining a corresponding monitoring time period according to the acquisition time period and the detection time period, and determining a corresponding reference display grade table and a corresponding monitoring identifier according to the target position range and the monitoring time period, wherein the monitoring identifier is a communication identifier corresponding to a monitoring information platform for monitoring the target position range of the optical cable in the monitoring time period;
determining a corresponding benchmark display grade in the display grade table based on the shock risk value and the loss risk value;
displaying the monitoring information on a routing graph corresponding to the optical cable based on the display grade;
and transmitting the monitoring information to a corresponding monitoring information platform based on the monitoring identification.
By implementing the method, a vibration waveform returned by the optical cable based on the DAS measurement signal is received, and the vibration waveform is analyzed to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period; determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value; receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal, and analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type; determining a loss risk value corresponding to a defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to a loss threshold value and the loss risk value; generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable; the method comprises the steps of receiving and analyzing a vibration waveform of the DAS to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, and determining a vibration condition corresponding to the defense area based on the vibration risk value and a vibration threshold value; receiving a measuring signal of an optical cable based on OTDR according to a preset detection time period, so that the calculation cost can be reduced, resources can be saved, a loss value, an event point and an event type are obtained by receiving a reflected light signal returned by the measuring signal of the optical cable based on OTDR and analyzing, a loss risk value corresponding to a defense area is determined, and the quality condition of the optical fiber of the optical cable is determined based on a loss threshold value preset by the loss risk value; monitoring information is generated according to the abnormal vibration information and the abnormal loss information, and the monitoring information is displayed on a routing diagram corresponding to the optical cable, so that the effective monitoring of the vibration condition and the optical cable optical fiber quality condition is combined, and the problem that the optical cable cannot be effectively monitored by combining the vibration condition and the optical cable optical fiber quality condition in the prior art is solved.
Referring to fig. 2, a second embodiment of the method for monitoring external force damage of an optical cable according to the embodiment of the present invention includes the following steps:
201. receiving a vibration waveform returned by the optical cable based on the DAS measuring signal, analyzing the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period;
in this step, the vibration waveform is generated based on the pulsed light signal collected by the DAS from the optical cable in the collection time period, and can reflect a situation that the optical cable vibrates due to receiving an influence of an external vibration.
In this step, the vibration waveform is analyzed to obtain a vibration risk value corresponding to a defense area of the optical cable within a preset acquisition time period, including:
extracting amplitude information and frequency information from the vibration waveform, for example, extracting a maximum amplitude and an average amplitude in the acquisition time period from the vibration waveform to obtain amplitude information, and extracting a characteristic frequency and an average frequency in the acquisition time period from the vibration waveform to obtain amplitude information;
determining a corresponding reference risk value based on the amplitude information according to a preset reference risk value table;
determining a corresponding risk coefficient based on the frequency information according to a preset risk coefficient table;
determining a corresponding shock risk value based on the baseline risk value and the risk factor.
In practical applications, the frequency information includes characteristic frequency and frequency variation information, and the process of extracting amplitude information and frequency information from the vibration waveform includes:
extracting a waveform meeting a preset characteristic frequency interval from the vibration waveform to obtain a characteristic waveform;
calculating the average frequency corresponding to the characteristic waveform to obtain characteristic frequency;
the frequency change information is extracted from the characteristic waveform, for example, the frequency change information is obtained by extracting the average frequency in each unit time from the characteristic waveform and calculating the change value of the average frequency in each unit time.
202. Determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value;
for this step, it can be specifically realized by the following manner:
determining corresponding construction information in a preset construction information table based on the defense area;
extracting construction disturbance grades corresponding to all time periods from the construction information;
determining the construction disturbance grade of the defense area in the acquisition time period based on the acquisition time period and the construction disturbance grade corresponding to each time period;
determining corresponding initial vibration threshold values and initial loss threshold values in a preset optical cable equipment information table according to the defense areas, wherein the optical cable equipment information table comprises optical cable types corresponding to the defense areas and the initial vibration threshold values and the initial loss threshold values corresponding to the optical cable types;
adjusting the initial vibration threshold value and the initial loss threshold value according to the construction disturbance grade to obtain a vibration threshold value and a loss threshold value;
comparing the vibration risk value with the vibration threshold value, and calculating the times when the vibration risk value exceeds the vibration threshold value within the collection time period of the defense area to obtain risk times;
determining a risk number threshold of the defense area in the acquisition time period according to the construction disturbance level, and generating abnormal vibration information according to the risk number and the risk number threshold, for example, when the risk number is greater than the risk number threshold, obtaining abnormal vibration information based on a difference value between the risk number and the risk number threshold, and when the risk number is not greater than the risk number threshold, resetting the risk number in a preset updating time period to obtain abnormal vibration information.
Further, the adjusting the initial vibration threshold value and the initial loss threshold value according to the construction disturbance level to obtain a vibration threshold value and a loss threshold value includes:
determining a corresponding vibration threshold value adjusting coefficient in a preset vibration threshold value adjusting coefficient table based on the construction disturbance grade, and adjusting the initial vibration threshold value based on the vibration threshold value adjusting coefficient to obtain the vibration threshold value;
and determining a corresponding loss threshold value adjusting coefficient in a preset loss threshold value adjusting coefficient table based on the construction disturbance grade, and adjusting the initial loss threshold value based on the loss threshold value adjusting coefficient to obtain the loss threshold value.
203. Receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal, and analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type;
in this step, the loss value is an index for measuring the loss of the optical fiber in the optical cable, and refers to the attenuation degree of optical signal power transmission per unit length, and the unit is decibel/kilometer (dB/km);
the loss value includes a loss value of the optical signal, for example, normally, during the transmission of the optical signal in the optical cable, the loss of light is about 0.2dB per kilometer, and if the loss is too large, the transmission of the optical signal is affected.
In this step, the event point may be obtained based on the analyzed position and the analyzed number of times of the event, for example, 1 joint loss event occurs at the point a, and is recorded as an event point;
the event type includes at least one of a joint loss event, a joint attenuation event, and a joint reflection event.
For this step, it can be specifically realized by the following means:
generating a corresponding data waveform based on the reflected light signal through the optical time domain reflectometer, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result;
extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak;
and extracting a loss value corresponding to the event point from the reflected light signal through the optical time domain reflectometer, and generating event information based on the event point, the event type and the loss value.
In practical applications, the process of analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type can be further implemented by the following steps:
generating, by the optical time domain reflectometer, a corresponding data waveform based on the reflected light signal;
comparing the data waveform with a preset reference waveform to obtain a waveform comparison result;
extracting a slope change point and a characteristic reflection peak from the waveform comparison result through a pre-trained event analysis model, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak;
and extracting a loss value corresponding to the event point from the reflected light signal through the optical time domain reflectometer, and generating event information based on the event point, the event type and the loss value.
Further, the event analysis model may be trained by:
acquiring historical waveform data and a preset neural network model, and initializing network parameters of a word vector layer, a maximum pooling layer and a full-connection hidden layer in the neural network model, wherein the historical waveform data comprises event points and event types corresponding to data waveforms of artificial identification;
inputting the historical waveform data into the neural network model to obtain predicted event points and event types;
calculating a preset loss function according to the event points and the event types of the historical waveform data through manual identification and the event points and the event types predicted through a neural network model to obtain a loss value, and judging whether the loss value is smaller than a preset threshold value or not;
if so, determining an event analysis model according to network parameters of a word vector layer, a maximum pooling layer and a full-connection hidden layer in the neural network model;
if not, updating the network parameters of the neural network model through a back propagation algorithm according to the loss value, repeating the model training process until the loss value is smaller than a preset threshold value, and determining the network parameters of the Chinese word vector layer, the maximum pooling layer and the full-connection hidden layer of the trained neural network model to obtain an event analysis model.
In practical application, the process of analyzing the loss of the optical cable based on the reflected light signal to obtain the loss value, the event point and the event type can be realized by a preset algorithm.
204. Determining a loss risk value corresponding to the defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to the loss threshold value and the loss risk value;
for this step, it can be specifically realized by the following manner:
extracting the loss value, the event point and the event type corresponding to the defense area in the acquisition time period, and calculating the increment of the event point and the increment of the loss value;
and determining a loss risk value of the defense area in the acquisition time period according to the event point increment and the loss value increment.
Specifically, the determining the loss risk value of the defense area in the acquisition time period according to the event point increase amount and the loss value increase amount includes:
determining a corresponding loss risk value corresponding table and a corresponding loss risk adjustment value table according to the defense area;
determining a corresponding reference loss risk value in the loss risk value corresponding table according to the loss value increment;
determining a corresponding loss risk adjustment value in the loss risk adjustment value table according to the event point increment;
determining the loss risk value based on the baseline loss risk value and the loss risk adjustment value.
205. And generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable.
For this step, it can be specifically realized by the following means:
determining a corresponding alarm grade table and a corresponding monitoring identifier according to the defense area and the acquisition time period, wherein the monitoring identifier is a communication identifier corresponding to a monitoring information platform of the defense area for monitoring the optical cable in the acquisition time period;
judging whether the loss risk value is larger than the loss threshold value;
determining an alarm level in the alarm level table based on the loss risk value when the loss risk value is greater than the loss threshold value, e.g., the loss threshold value may be set to 0.2dB;
when the loss risk value is not larger than the loss threshold value, judging whether the risk times are larger than the risk times threshold value;
when the risk times are larger than the risk time threshold value, determining an alarm level in the alarm level table based on the risk times;
when the risk times are not larger than the risk times threshold, the alarm level is not reaching the risk times threshold;
displaying the monitoring information on a routing graph corresponding to the optical cable based on the alarm level, wherein the routing graph corresponding to the optical cable is displayed on a preset display interface, for example, according to the corresponding relation between the defense areas and the routing graph, a corresponding display color is determined based on the alarm level, and the risk times corresponding to each defense area are displayed on the routing graph based on the display color;
and sending the monitoring information and the alarm level corresponding to the monitoring information to a corresponding monitoring information platform based on the monitoring identification, for example, if the monitoring identification is a mobile phone number, sending the monitoring information and the alarm level corresponding to the monitoring information to the corresponding monitoring information platform through a short message.
By implementing the method, a vibration waveform returned by the optical cable based on the DAS measurement signal is received and analyzed to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period; determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value; receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal, and analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type; determining a loss risk value corresponding to a defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to a loss threshold value and the loss risk value; generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable; the method comprises the steps of receiving and analyzing a vibration waveform of the DAS to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, and determining a vibration condition corresponding to the defense area based on the vibration risk value and a vibration threshold value; receiving a reflected light signal returned by an optical cable based on an OTDR measuring signal and analyzing the reflected light signal by a pre-trained event analysis model to obtain a loss value, an event point and an event type, determining a loss risk value corresponding to a defense area, and determining the quality condition of an optical fiber of the optical cable based on a loss threshold value preset by the loss risk value; monitoring information is generated according to the abnormal vibration information and the abnormal loss information, and the monitoring information is displayed on a routing diagram corresponding to the optical cable, so that the effective monitoring of the vibration condition and the optical cable optical fiber quality condition is combined, and the problem that the optical cable cannot be effectively monitored by combining the vibration condition and the optical cable optical fiber quality condition in the prior art is solved.
Referring to fig. 3, a third embodiment of the method for monitoring external force damage of an optical cable according to the embodiment of the present invention includes the following steps:
301. receiving a vibration waveform returned by the optical cable based on the DAS measuring signal, analyzing the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period;
in this step, the DAS is a distributed optical fiber acoustic wave sensing system.
In practical application, the distributed optical fiber acoustic wave sensing system comprises:
the device comprises a narrow-linewidth light source unit, a 1.
In this step, analyzing the vibration waveform to obtain a vibration risk value corresponding to the defense area of the optical cable within a preset acquisition time period includes:
extracting amplitude information and frequency information from the vibration waveform; determining a corresponding reference risk value based on the amplitude information according to a preset reference risk value table; determining a corresponding risk coefficient based on the frequency information according to a preset risk coefficient table; determining a corresponding shock risk value based on the baseline risk value and the risk factor.
302. Determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value;
for this step, it can be specifically realized by the following manner:
determining corresponding construction information in a preset construction information table based on the defense area; extracting construction disturbance grades corresponding to all time periods from the construction information, and determining the construction disturbance grades of the defense areas in the acquisition time periods based on the acquisition time periods and the construction disturbance grades corresponding to all time periods; determining a corresponding initial vibration threshold value and an initial loss threshold value in a preset optical cable equipment information table according to the defense area, and adjusting the initial vibration threshold value and the initial loss threshold value according to the construction disturbance level to obtain a vibration threshold value and a loss threshold value; comparing the vibration risk value with the vibration threshold value, and calculating the times when the vibration risk value exceeds the vibration threshold value within the collection time period of the defense area to obtain risk times; and determining a risk frequency threshold value of the defense area in the acquisition time period according to the construction disturbance grade, and generating abnormal vibration information according to the risk frequency and the risk frequency threshold value.
303. Controlling a preset optical time domain reflectometer to obtain a reflected light signal transmitted through an optical fiber in the optical cable according to a preset detection time period, and performing loss analysis on the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type;
in this step, the loss value is an index for measuring the loss of the optical fiber in the optical cable, which means the degree of attenuation of the optical signal power transmission per unit length, and is expressed in decibels/kilometers (dB/km) as a unit.
In this step, the process of analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point, and an event type includes:
generating a corresponding data waveform based on the reflected light signal through OTDR, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result; extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak; calculating a corresponding loss value based on the reflected light signal by the OTDR.
In this step, the detection time period may be obtained by:
judging whether the risk times are larger than the risk time threshold value or not;
if not, determining a corresponding detection time period in a preset detection time period table according to the risk times;
if so, acquiring a corresponding time point when the risk times reach the risk time threshold value, and recording the time point as a detection time starting point;
the corresponding detection time period is determined based on the detection time start point according to a preset time period template, for example, the time period template may be set to be five seconds every minute from the unit time after the detection time start point.
In practical application, the starting point of the detection time is set to trigger the control of the optical time domain reflectometer to obtain a reflected light signal transmitted through an optical fiber in an optical cable when the abnormal vibration information reaches a certain condition (for example, the risk number is greater than the risk number threshold);
the detection time starting point may also be determined by a corresponding time point when the risk is greater than the risk threshold.
In practical applications, the detection time period is set for energy saving and equipment loss reduction, and in a case where the risk number is much larger than the risk number threshold (for example, in a case where the risk number is much larger than ten times of the risk number threshold), a detection time period may be set after the start of the detection time, for example, a detection time period of 24 hours is set from a time when the risk number is much larger than ten times of the risk number threshold, and a preset optical time domain reflectometer is controlled to continuously acquire the reflected light signal transmitted through the optical fiber in the optical cable during the detection time period.
In practical applications, the detection time period may also be obtained by:
judging whether the vibration risk value is larger than the vibration threshold value;
if not, determining a corresponding detection time period from a preset second detection time period table according to the vibration risk value;
and if so, determining a corresponding detection time period from a second detection time period table according to the vibration threshold value.
304. Determining a loss risk value corresponding to the defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to the loss threshold value and the loss risk value;
in this step, the determining a loss risk value corresponding to the defense area based on the loss value, the event point, and the event type includes:
extracting the loss value, the event point and the event type corresponding to the defense area in the acquisition time period, and calculating the increment of the event point and the increment of the loss value; and determining a loss risk value of the defense area in the acquisition time period according to the event point increment and the loss value increment.
In this step, the loss threshold includes a general loss alarm threshold and an important loss alarm threshold, for example, the general loss alarm threshold may be set to 0.2dB/km, and the important loss alarm threshold may be set to 0.5dB/km;
in this step, the abnormal loss information includes a loss level;
the generating of the abnormal loss information according to the loss threshold and the loss risk value comprises:
judging whether the loss risk value is larger than the common loss alarm threshold value;
if the loss risk value is not greater than the common loss alarm threshold value, determining the corresponding loss grade as loss no-alarm;
if the loss risk value is larger than the general loss alarm threshold, judging whether the loss risk value is larger than the important loss alarm threshold;
if the loss risk value is not greater than the important loss alarm threshold value, determining that the corresponding loss grade is a common loss alarm;
and if the loss risk value is larger than the important loss alarm threshold value, determining the corresponding loss grade as an important loss alarm.
305. And generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable.
In this step, the displaying the monitoring information on the routing diagram corresponding to the optical cable includes:
determining a corresponding alarm grade table and a corresponding monitoring identifier according to the defense area and the acquisition time period, wherein the monitoring identifier is a communication identifier corresponding to a monitoring information platform of the defense area for monitoring the optical cable in the acquisition time period;
determining an alarm level in the alarm level table based on the loss level when the loss risk value is greater than the loss threshold value;
determining an alarm level in the alarm level table based on the risk number and the risk number threshold when the loss risk value is not greater than the loss threshold;
and displaying the monitoring information on a routing graph corresponding to the optical cable based on the alarm level, and sending the monitoring information and the alarm level corresponding to the monitoring information to a corresponding monitoring information platform based on the monitoring identification, wherein the routing graph corresponding to the optical cable is displayed on a preset display interface.
In practical application, the routing graph further comprises risk points, construction areas and fault points;
the risk number threshold comprises a low risk point threshold, a medium risk point threshold and a high risk point threshold;
the routing graph may be obtained by:
determining a risk point grade according to the risk number and the low risk point threshold, the medium risk point threshold and the high risk point threshold, for example, if the risk number is lower than the low risk point threshold, the risk point grade is no risk, and if the risk number is between the low risk point threshold and the medium risk point threshold, the risk point grade is determined to be a low risk point;
outputting the risk point grades to the routing graph through different colors according to the risk point grades corresponding to the defense areas to obtain risk points;
acquiring a construction range from a preset construction information table, and outputting the construction range to the routing diagram to obtain a construction area;
and outputting the loss grade to the routing graph through different colors according to the loss grade corresponding to each defense area to obtain a fault point.
In practical application, after the monitoring information is displayed on the routing graph corresponding to the optical cable, the step further comprises;
determining a corresponding personnel identification library according to the alarm level, and determining a corresponding administrator identification and a corresponding construction responsible person identification in the personnel identification library according to the defense area, wherein the administrator identification is a communication identification corresponding to an administrator, and the construction responsible person identification is a communication identification corresponding to a construction responsible person;
and sending the abnormal vibration information, the abnormal loss information and the alarm level to a corresponding administrator and a corresponding construction responsible person based on the administrator identification and the construction responsible person identification through a preset communication platform.
By implementing the method, a vibration waveform returned by the optical cable based on the DAS measurement signal is received and analyzed to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period; determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value; receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal, and analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type; determining a loss risk value corresponding to the defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to the loss threshold value and the loss risk value; generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable; in the above step, a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period is obtained by receiving and analyzing the vibration waveform of the DAS, and a vibration condition corresponding to the defense area is determined based on the vibration risk value and a vibration threshold; determining a trigger logic corresponding to an optical time domain reflectometer through setting of a detection time period, wherein the detection time period is determined based on a detection time starting point, and when the abnormal vibration information reaches a certain condition (for example, when the risk times are greater than a risk time threshold value) through setting of the detection time starting point, triggering control over the optical time domain reflectometer so as to obtain a reflected light signal returned by a reflected light signal transmitted through an optical fiber in the optical cable through a receiving optical cable based on a measurement signal of an OTDR and analyze the reflected light signal to obtain a loss value, an event point and an event type, determining a loss risk value corresponding to a defense area, and determining the quality condition of the optical fiber in the optical cable based on a loss threshold value preset by the loss risk value; monitoring information is generated according to the abnormal vibration information and the abnormal loss information, and the monitoring information is displayed on a routing diagram corresponding to the optical cable, so that the effective monitoring of the vibration condition and the optical cable optical fiber quality condition is combined, and the problem that the optical cable cannot be effectively monitored by combining the vibration condition and the optical cable optical fiber quality condition in the prior art is solved.
With reference to fig. 4, the method for monitoring external force damage of an optical cable according to an embodiment of the present invention is described above, and an embodiment of the apparatus for monitoring external force damage of an optical cable according to an embodiment of the present invention is described below, where the apparatus includes:
the analysis module 401 is configured to receive a vibration waveform returned by an optical cable based on a measurement signal of the DAS, and analyze the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable within a preset acquisition time period, where the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable within the acquisition time period;
a first generation module 402, configured to determine a corresponding vibration threshold and a loss threshold according to the defense area and the acquisition time period, and generate abnormal vibration information according to the vibration threshold and the vibration risk value;
an analyzing module 403, configured to receive, according to a preset detection time period, a reflected light signal returned by the optical cable based on the OTDR measurement signal; generating a corresponding data waveform based on the reflected light signal through OTDR, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result; extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak; calculating, by the OTDR, a corresponding loss value based on the reflected light signal;
a second generating module 404, configured to determine a loss risk value corresponding to the defense area based on the loss value, the event point, and the event type, and generate abnormal loss information according to the loss threshold and the loss risk value;
and the display module 405 is configured to generate monitoring information according to the abnormal vibration information and the abnormal loss information, and display the monitoring information on a routing map corresponding to the optical cable.
By implementing the device, a vibration waveform returned by the optical cable based on the DAS measurement signal is received, and is analyzed to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period; determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value; receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal, and analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type; determining a loss risk value corresponding to a defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to a loss threshold value and the loss risk value; generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable; the method comprises the steps of receiving and analyzing a vibration waveform of the DAS to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, and determining a vibration condition corresponding to the defense area based on the vibration risk value and a vibration threshold value; receiving a reflected light signal returned by an optical cable based on an OTDR measuring signal and analyzing the reflected light signal to obtain a loss value, an event point and an event type, determining a loss risk value corresponding to a defense area, and determining the quality condition of an optical fiber of the optical cable based on a loss threshold value preset by the loss risk value; monitoring information is generated according to the abnormal vibration information and the abnormal loss information, and the monitoring information is displayed on a routing diagram corresponding to the optical cable, so that the effective monitoring of the vibration condition and the optical cable optical fiber quality condition is combined, and the problem that the optical cable cannot be effectively monitored by combining the vibration condition and the optical cable optical fiber quality condition in the prior art is solved.
Referring to fig. 5, another embodiment of the device for monitoring external force damage of an optical cable according to the embodiment of the present invention includes:
the analysis module 401 is configured to receive a vibration waveform returned by an optical cable based on a measurement signal of the DAS, and analyze the vibration waveform to obtain a vibration risk value corresponding to a defense area of the optical cable within a preset acquisition time period, where the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable within the acquisition time period;
a first generation module 402, configured to determine a corresponding vibration threshold and a loss threshold according to the defense area and the acquisition time period, and generate abnormal vibration information according to the vibration threshold and the vibration risk value;
an analyzing module 403, configured to receive, according to a preset detection time period, a reflected light signal returned by the optical cable based on the OTDR measurement signal; generating a corresponding data waveform based on the reflected light signal through OTDR, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result; extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak; calculating, by the OTDR, a corresponding loss value based on the reflected light signal;
the analysis module 403 is further configured to extract a slope change point and a characteristic reflection peak from the waveform comparison result according to a pre-trained event analysis model, and determine a corresponding event point and an event type according to the slope change point and the characteristic reflection peak;
a second generating module 404, configured to determine a loss risk value corresponding to the defense area based on the loss value, the event point, and the event type, and generate abnormal loss information according to the loss threshold and the loss risk value;
and a display module 405, configured to generate monitoring information according to the abnormal vibration information and the abnormal loss information, and display the monitoring information on a routing diagram corresponding to the optical cable.
In this embodiment, the parsing module 401 includes:
an extraction unit 4011 configured to extract amplitude information and frequency information from the vibration waveform;
a first determining unit 4012, configured to determine, according to a preset reference risk value table, a corresponding reference risk value based on the amplitude information;
a second determining unit 4013, configured to determine, according to a preset risk coefficient table, a corresponding risk coefficient based on the frequency information;
a third determination unit 4014 configured to determine a corresponding shock risk value based on the reference risk value and the risk coefficient.
In this embodiment, the first generating module 402 includes:
a threshold determining unit 4021, configured to determine corresponding construction information in a preset construction information table based on the defense area; extracting construction disturbance grades corresponding to all time periods from the construction information, and determining the construction disturbance grades of the defense areas in the acquisition time periods based on the acquisition time periods and the construction disturbance grades corresponding to all time periods; determining a corresponding initial vibration threshold value and an initial loss threshold value in a preset optical cable equipment information table according to the defense area, and adjusting the initial vibration threshold value and the initial loss threshold value according to the construction disturbance level to obtain a vibration threshold value and a loss threshold value;
the generating unit 4022 is configured to compare the vibration risk value with the vibration threshold, and calculate the number of times when the vibration risk value exceeds the vibration threshold within the collection time period of the defense area, so as to obtain a risk number; and determining a risk frequency threshold of the defense area in the acquisition time period according to the construction disturbance level, and generating abnormal vibration information according to the risk frequency and the risk frequency threshold.
In this embodiment, the second generating module 404 includes:
a second calculating unit 4041, configured to extract the loss value, the event point, and the event type corresponding to the defense area in the acquisition time period, and calculate an increase amount of the event point and an increase amount of the loss value;
a fifth determining unit 4042, configured to determine a loss risk value of the defense area in the acquisition time period according to the event point increment and the loss value increment.
In this embodiment, the display module 405 includes:
a sixth determining unit 4051, configured to determine a corresponding alarm level table and a corresponding monitoring identifier according to the defense area and the acquisition time period, where the monitoring identifier is a communication identifier corresponding to a monitoring information platform that monitors the defense area of the optical cable in the acquisition time period;
a seventh determining unit 4052, configured to determine an alarm level in the alarm level table based on the loss risk value when the loss risk value is greater than the loss threshold value;
an eighth determining unit 4053, configured to determine, when the loss risk value is not greater than the loss threshold, an alarm level in the alarm level table based on the risk number and the risk number threshold;
the display unit 4054 is configured to display the monitoring information on the routing graph corresponding to the optical cable based on the alarm level, and send the monitoring information and the alarm level corresponding to the monitoring information to a corresponding monitoring information platform based on the monitoring identifier, where the routing graph corresponding to the optical cable is displayed on a preset display interface.
By implementing the device, a vibration waveform returned by the optical cable based on the DAS measurement signal is received, and is analyzed to obtain a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period; determining a corresponding vibration threshold value and a loss threshold value according to the defense area and the acquisition time period, and generating abnormal vibration information according to the vibration threshold value and the vibration risk value; receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal, and analyzing the loss of the optical cable based on the reflected light signal to obtain a loss value, an event point and an event type; determining a loss risk value corresponding to a defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to a loss threshold value and the loss risk value; generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable; in the above step, a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period is obtained by receiving and analyzing the vibration waveform of the DAS, and a vibration condition corresponding to the defense area is determined based on the vibration risk value and a vibration threshold; receiving a reflected light signal returned by an optical cable based on an OTDR measuring signal and analyzing the reflected light signal to obtain a loss value, an event point and an event type, determining a loss risk value corresponding to a defense area, and determining the quality condition of an optical fiber of the optical cable based on a loss threshold value preset by the loss risk value; monitoring information is generated according to the abnormal vibration information and the abnormal loss information, and the monitoring information is displayed on a routing diagram corresponding to the optical cable, so that the effective monitoring of the vibration condition and the optical cable optical fiber quality condition is combined, and the problem that the optical cable cannot be effectively monitored by combining the vibration condition and the optical cable optical fiber quality condition in the prior art is solved.
Referring to fig. 6, an embodiment of a computer device in an embodiment of the present invention is described in detail below from a hardware processing perspective.
Fig. 6 is a schematic structural diagram of a computer device 600 according to an embodiment of the present invention, which may have a relatively large difference due to different configurations or performances, and may include one or more processors (CPUs) 610 (e.g., one or more processors) and a memory 620, and one or more storage media 630 (e.g., one or more mass storage devices) for storing applications 633 or data 632. Memory 620 and storage medium 630 may be, among other things, transient or persistent storage. The program stored in the storage medium 630 may include one or more modules (not shown), each of which may include a sequence of instructions for operating on the computer device 600. Further, the processor 610 may be configured to communicate with the storage medium 630 to execute a series of instruction operations in the storage medium 630 on the computer device 600.
The computer device 600 may also include one or more power supplies 640, one or more wired or wireless network interfaces 650, one or more input-output interfaces 660, and/or one or more operating systems 631, such as Windows Server, mac OS X, unix, linux, freeBSD, and so forth. Those skilled in the art will appreciate that the computer device configuration illustrated in FIG. 6 is not intended to be limiting of the computer devices provided herein and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The present invention also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium, and may also be a volatile computer-readable storage medium, where instructions are stored, and when the instructions are executed on a computer, the instructions cause the computer to execute the steps of the monitoring method for external force damage to an optical cable.
In practical applications, the above-provided method can be implemented based on Artificial Intelligence (AI) which is a theory, method, technique and application system that simulates, extends and expands human Intelligence, senses environment, acquires knowledge and uses knowledge to obtain the best result by using a digital computer or a machine controlled by a digital computer. The cloud server may be an independent server, or may be a cloud server that provides basic cloud computing services such as cloud service, cloud database, cloud computing, cloud function, cloud storage, web service, cloud communication, middleware service, domain name service, security service, content Delivery Network (CDN), and big data and artificial intelligence platform.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for monitoring for external force damage to an optical fiber cable, the method comprising:
receiving a vibration waveform returned by the optical cable based on a measurement signal of the DAS, and extracting amplitude information and frequency information from the vibration waveform; determining a corresponding reference risk value based on the amplitude information according to a preset reference risk value table; determining a corresponding risk coefficient based on the frequency information according to a preset risk coefficient table; determining a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period based on the reference risk value and the risk coefficient, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period;
determining corresponding construction information in a preset construction information table based on the defense area; extracting construction disturbance grades corresponding to all time periods from the construction information, and determining the construction disturbance grades of the defense areas in the acquisition time periods based on the acquisition time periods and the construction disturbance grades corresponding to all time periods; determining a corresponding initial vibration threshold value and an initial loss threshold value in a preset optical cable equipment information table according to the defense area, and adjusting the initial vibration threshold value and the initial loss threshold value according to the construction disturbance grade to obtain a vibration threshold value and a loss threshold value; comparing the vibration risk value with the vibration threshold value, and calculating the times when the vibration risk value exceeds the vibration threshold value within the collection time period of the defense area to obtain risk times; determining a risk frequency threshold value of the defense area in the acquisition time period according to the construction disturbance grade, and generating abnormal vibration information according to the risk frequency and the risk frequency threshold value;
receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal according to a preset detection time period; generating a corresponding data waveform based on the reflected light signal through OTDR, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result; extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak; calculating, by the OTDR, a corresponding loss value based on the reflected light signal;
determining a loss risk value corresponding to the defense area based on the loss value, the event point and the event type, and generating abnormal loss information according to the loss threshold value and the loss risk value;
and generating monitoring information according to the abnormal vibration information and the abnormal loss information, and displaying the monitoring information on a routing graph corresponding to the optical cable.
2. The method for monitoring according to claim 1, wherein the extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak comprise:
and extracting a slope change point and a characteristic reflection peak from the waveform comparison result according to a pre-trained event analysis model, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak.
3. The method of claim 1, wherein said determining a loss risk value corresponding to the zone of defense based on the loss value, the event point, and the event type comprises:
extracting the loss value, the event point and the event type corresponding to the defense area in the acquisition time period, and calculating the increment of the event point and the increment of the loss value;
and determining a loss risk value of the defense area in the acquisition time period according to the event point increment and the loss value increment.
4. The method according to any one of claims 1 to 3, wherein the displaying the monitoring information on the routing graph corresponding to the optical cable includes:
determining a corresponding alarm grade table and a corresponding monitoring identifier according to the defense area and the acquisition time period, wherein the monitoring identifier is a communication identifier corresponding to a monitoring information platform of the defense area for monitoring the optical cable in the acquisition time period;
determining an alarm level in the alarm level table based on the loss risk value when the loss risk value is greater than the loss threshold value;
determining an alarm level in the alarm level table based on the risk number and the risk number threshold when the loss risk value is not greater than the loss threshold;
and displaying the monitoring information on a routing graph corresponding to the optical cable based on the alarm level, and sending the monitoring information and the alarm level corresponding to the monitoring information to a corresponding monitoring information platform based on the monitoring identification, wherein the routing graph corresponding to the optical cable is displayed on a preset display interface.
5. A device for monitoring external force damage to an optical fiber cable, the device comprising:
the analysis module is used for receiving a vibration waveform returned by the optical cable based on the DAS measuring signal and extracting amplitude information and frequency information from the vibration waveform; determining a corresponding reference risk value based on the amplitude information according to a preset reference risk value table; determining a corresponding risk coefficient based on the frequency information according to a preset risk coefficient table; determining a vibration risk value corresponding to a defense area of the optical cable in a preset acquisition time period based on the reference risk value and the risk coefficient, wherein the vibration waveform is generated by the DAS based on a pulse light signal acquired from the optical cable in the acquisition time period;
the first generation module is used for determining corresponding construction information in a preset construction information table based on the defense area; extracting construction disturbance grades corresponding to all time periods from the construction information, and determining the construction disturbance grades of the defense areas in the acquisition time periods based on the acquisition time periods and the construction disturbance grades corresponding to all time periods; determining a corresponding initial vibration threshold value and an initial loss threshold value in a preset optical cable equipment information table according to the defense area, and adjusting the initial vibration threshold value and the initial loss threshold value according to the construction disturbance level to obtain a vibration threshold value and a loss threshold value; comparing the vibration risk value with the vibration threshold value, and calculating the times when the vibration risk value exceeds the vibration threshold value within the collection time period of the defense area to obtain risk times; determining a risk frequency threshold of the defense area in the acquisition time period according to the construction disturbance level, and generating abnormal vibration information according to the risk frequency and the risk frequency threshold;
the analysis module is used for receiving a reflected light signal returned by the optical cable based on the OTDR measuring signal according to a preset detection time period; generating a corresponding data waveform based on the reflected light signal through OTDR, and comparing the data waveform with a preset reference waveform to obtain a waveform comparison result; extracting a slope change point and a characteristic reflection peak from the waveform comparison result, and determining a corresponding event point and an event type according to the slope change point and the characteristic reflection peak; calculating, by the OTDR, a corresponding loss value based on the reflected light signal;
a second generation module, configured to determine a loss risk value corresponding to the defense area based on the loss value, the event point, and the event type, and generate abnormal loss information according to the loss threshold and the loss risk value;
and the display module is used for generating monitoring information according to the abnormal vibration information and the abnormal loss information and displaying the monitoring information on a routing graph corresponding to the optical cable.
6. The apparatus of claim 5, wherein the analysis module is further configured to extract a slope change point and a characteristic reflection peak from the waveform comparison result according to a pre-trained event analysis model, and determine a corresponding event point and an event type according to the slope change point and the characteristic reflection peak.
7. The apparatus of claim 5, wherein the second generating module comprises: the second calculation unit is used for extracting the loss value, the event point and the event type corresponding to the defense area in the acquisition time period, and calculating the increment of the event point and the increment of the loss value; and the fifth determining unit is used for determining the loss risk value of the defense area in the acquisition time period according to the event point increment and the loss value increment.
8. The apparatus of claim 5, wherein the display module comprises: a sixth determining unit, configured to determine a corresponding alarm level table and a corresponding monitoring identifier according to the defense area and the acquisition time period, where the monitoring identifier is a communication identifier corresponding to a monitoring information platform that monitors the defense area of the optical cable in the acquisition time period; a seventh determining unit, configured to determine an alarm level in the alarm level table based on the loss risk value when the loss risk value is greater than the loss threshold value; an eighth determining unit, configured to determine, when the loss risk value is not greater than the loss threshold, an alarm level in the alarm level table based on the risk number and the risk number threshold; and the display unit is used for displaying the monitoring information on the routing graph corresponding to the optical cable based on the alarm grade and sending the monitoring information and the alarm grade corresponding to the monitoring information to a corresponding monitoring information platform based on the monitoring identification, wherein the routing graph corresponding to the optical cable is displayed on a preset display interface.
9. A computer device, comprising: a memory having instructions stored therein and at least one processor, the memory and the at least one processor interconnected by a line;
the at least one processor invokes the instructions in the memory to cause the computer device to perform the steps of the method of monitoring for cable external force damage according to any of claims 1-4.
10. A computer-readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, implements the steps of the method for monitoring optical cable external force damage according to any one of claims 1 to 4.
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| CN113489534A (en) * | 2021-07-16 | 2021-10-08 | 国网青海省电力公司信息通信公司 | Optical cable abnormity detection method and device |
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Denomination of invention: Monitoring methods, devices, equipment, and storage media for external damage to optical cables Effective date of registration: 20231130 Granted publication date: 20230131 Pledgee: Industrial and Commercial Bank of China Limited Guangzhou tianpingjia sub branch Pledgor: Gaokan (Guangzhou) Technology Co.,Ltd. Registration number: Y2023980068506 |
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