CN109990974A - Optical fiber property analysis method, device, equipment and storage medium - Google Patents
Optical fiber property analysis method, device, equipment and storage medium Download PDFInfo
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- CN109990974A CN109990974A CN201711492283.6A CN201711492283A CN109990974A CN 109990974 A CN109990974 A CN 109990974A CN 201711492283 A CN201711492283 A CN 201711492283A CN 109990974 A CN109990974 A CN 109990974A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
Abstract
The embodiment of the present invention provides a kind of optical fiber property analysis method, device, equipment and storage medium.This method comprises: obtaining the test data of several fibre cores after optical fiber cutover to be analyzed；Setting analysis parameter, analysis parameter are used to characterize the quality of several fibre cores after optical fiber cutover；According to test data and analysis parameter, the test data of several fibre cores is divided into several groups to analyze respectively, the corresponding autoanalyzer of the test data of each group of fibre core, autoanalyzer analyzes the case point and event location in several fibre cores of corresponding group, in conjunction with the theoretical length of optical fiber, the respective total attenuation of several fibre cores and average attenuation are calculated, to obtain the qualitative data of several fibre cores of corresponding group；Duplicate data in qualitative data are excluded, to obtain the analysis result of optical fiber property.Technical solution through the embodiment of the present invention is able to ascend optical fiber property analysis efficiency, reduces cost.
Description
Technical field
The present invention relates to technical field of optical fiber more particularly to a kind of optical fiber property analysis method, device, equipment and storage to be situated between
Matter.
Background technique
In order to understand the quality condition of underlying transport medium optical fiber in transmission field, OTDR Meter Test is generallyd use at present
It is realized with the mode of optical fiber monitoring.By OTDR instrument can quantitatively judgement optical fiber quality attenuation position and attenuation
Size, which is commonly used in a large amount of spare fibre core tests.It can be with the event of real-time judge optical fiber by way of optical fiber monitoring
Barrier, fault location, which are commonly used in testing with fibre core or a small amount of spare fibre core.
It, can for can be by the real-time fault location of optical fiber online monitoring system with fibre core or a small amount of spare fibre core
To grasp optical fiber quality situation in time.Optical fiber online monitoring system is by setting monitoring fibre core both ends incoming fiber optic on-line monitoring
Standby, when optical fiber occurs to interrupt or attenuation is greater than threshold value, system can automatically start test, carry out in real time to fibre core
Test understands optical fiber quality situation.For daily optical fiber quality under normal circumstances, optical fiber online monitoring system can be by fixed
The mode of phase poll, tests monitoring fibre core, saves manual testing's link, grasps monitoring fibre core quality condition in real time, but
Hardware cost is higher.
In addition, the maintenance for optical fiber quality, the mode for generalling use Dai Wei at present is safeguarded, is mentioned according to maintenance personnel
The optical fiber quality report of the form of friendship comes to maintenance personnel's worksheet processing, after optical fiber maintenance personnel's maintenance work, You Daiwei
Personnel re-start test to optical fiber, and analysis summary submits the optical fiber quality report of form.Before administrative staff are by maintenance
Rear table twice audits maintenance personnel's maintenance work, and the charging to maintenance personnel is completed after audit and is worked.
Spare fibre core is tested in prior art, spare fibre core is carried out by core using by OTDR instrument
Test is analyzed each core test data one by one by the analysis software that OTDR instrument carries, analysis result is filled up to Excel
Summarized in table.This kind of program analysis efficiency is lower, due to include in every optical fiber fibre core number about 24~144 cores not
Deng the case where for magnanimity optical fiber, can not accomplishing accurate detailed to grasp spare fibre so 1~2 optical fiber can be analyzed per half a day
Core situation influences the fine use of new construction or emergency.
It, can for can be by the real-time fault location of optical fiber online monitoring system with fibre core or a small amount of spare fibre core
To grasp optical fiber quality situation in time, but optical fiber online monitoring system must rely on the hardware auxiliary facility ability of widespread deployment
Enough normal uses.Hardware installation it is more, covering fiber optic scope it is wider, system can be played really to the full fibre core quality of optical fiber
Managerial role.But installing therewith bring can also be continuously increased with lower deployment cost with the increase of optical fiber.
Maintenance for optical fiber quality, since entire maintenance work is all realized by the excel table of maintenance personnel's submission
The data visualization of the examination of maintenance personnel's maintenance quality, excel sheet form is not strong, and manual analysis low efficiency can not slap in time
Idle fibre core quality is held, and is not easy to find the hidden danger and unqualified data hidden in big data, and whole process is filled out by maintenance personnel
It writes and reports, the authenticity of data is caused to be unable to get guarantee.Therefore optical fiber actual mass situation and presentation package are often resulted in
The phenomenon that not being inconsistent also accurately can not accurately examine maintenance personnel's maintenance work.
Summary of the invention
The embodiment of the invention provides a kind of optical fiber property analysis method, device, equipment and storage mediums, are able to solve biography
Low, the at high cost technical problem of analysis efficiency caused by the fiber data analysis mode of system.
In a first aspect, the embodiment of the invention provides a kind of optical fiber property analysis methods, which comprises
The test data of several fibre cores after obtaining optical fiber cutover to be analyzed；
Setting analysis parameter, the analysis parameter are used to characterize the quality of several fibre cores after the optical fiber cutover；
According to the test data and the analysis parameter, the test data of several fibre cores is divided into several groups difference
Analysis, the corresponding autoanalyzer of the test data of each group of fibre core, the autoanalyzer analyze several institutes of corresponding group
The case point and event location in fibre core are stated, in conjunction with the theoretical length of the optical fiber, it is respective total to calculate several fibre cores
Attenuation and average attenuation, to obtain the qualitative data of several fibre cores of corresponding group；
Duplicate data in the qualitative data are excluded, to obtain the analysis result of the optical fiber property.
Second aspect, the embodiment of the invention provides a kind of optical fiber property analytical equipments, comprising:
Test data obtains module, for obtaining the test data of several fibre cores after optical fiber cutover to be analyzed；
Analytical parameter setup module, for analysis parameter to be arranged, the analysis parameter is for after characterizing the optical fiber cutover
Several fibre cores quality；
Analysis module is used for according to the test data and the analysis parameter, by the test data of several fibre cores
It is divided into several groups to analyze respectively, the corresponding autoanalyzer of the test data of each group of fibre core, the autoanalyzer analyzes
Case point and event location in several fibre cores of corresponding group calculate several institutes in conjunction with the theoretical length of the optical fiber
The respective total attenuation of fibre core and average attenuation are stated, to obtain the qualitative data of several fibre cores of corresponding group；
Module is excluded, for excluding duplicate data in the qualitative data, to obtain the analysis knot of the optical fiber property
Fruit.
The embodiment of the invention provides a kind of optical fiber property analytical equipments, comprising: at least one processor, at least one deposits
Reservoir and computer program instructions stored in memory are realized as above when computer program instructions are executed by processor
The method for stating first aspect in embodiment.
Fourth aspect, the embodiment of the invention provides a kind of computer readable storage mediums, are stored thereon with computer journey
The method such as first aspect in above embodiment is realized in sequence instruction when computer program instructions are executed by processor.
Optical fiber property analysis method, device, equipment and storage medium provided in an embodiment of the present invention have below beneficial to effect
At least one of in fruit: 1) pass through while the test data for analyzing several fibre cores realizes quick diagnosis optical fiber quality situation, changes
Become conventional data analysis mode, improve analysis efficiency, and be shown by patterned mode, easily understands optical fiber quality feelings
Condition, thus overcome at high cost, the readable poor, data validity of data existing for prior art can not ensure, low efficiency
Problem.2) solve that use in the prior art can not under form of the optical fiber quality analysis mode for excel table is filled in manually under line
The problem of realization system automatic batch analytical effect, embodiment through the invention use the batch of the spare fibre core quality of optical fiber
Analytical technology realizes the efficient automatic management of optical fiber quality analysis.Cutover task manually is declared by original, is changed into submission and cuts
Optical fiber quality data before connecing.Original cutover task application places one's entire reliance upon the excel table of maintenance personnel's statistical report, then right
Maintenance personnel's worksheet processing.3) technical solution of the embodiment of the present invention forms the automatic comparison before and after optical fiber quality cutover, without artificial
Analysis summary automatically analyzes out the validity of cutover task, and the newest quality condition of optical fiber is constantly accumulated by cutover task, right
Optical fiber quality manages to form effective closed-loop.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 shows the flow diagram of the optical fiber property analysis method of one embodiment of the invention.
Fig. 2 schematically illustrates the treatment process schematic diagram of the optical fiber property analysis method of one embodiment of the invention.
Fig. 3 shows the illustrative diagram of the analysis process in Fig. 1.
Fig. 4 shows the schematic diagram of the test data patternization display of several fibre cores of optical fiber.
Fig. 5 shows the diagnosis contrast schematic diagram before several fibre core cutovers of optical fiber and after cutover.
Fig. 6 shows the optical fiber quality curve synoptic diagram of a fibre core of optical fiber.
Fig. 7 shows the optical fiber quality curve synoptic diagram of several fibre cores of optical fiber.
Fig. 8 shows optical fiber quality diagnostic result table.
Fig. 9 shows the structural schematic diagram of the optical fiber property analytical equipment of one embodiment of the invention.
Figure 10 shows the structural schematic diagram of the optical fiber property analytical equipment of one embodiment of the invention.
Specific embodiment
The feature and exemplary embodiment of various aspects of the invention is described more fully below, in order to make mesh of the invention
, technical solution and advantage be more clearly understood, with reference to the accompanying drawings and embodiments, the present invention is further retouched in detail
It states.It should be understood that specific embodiment described herein is only configured to explain the present invention, it is not configured as limiting the present invention.
To those skilled in the art, the present invention can be real in the case where not needing some details in these details
It applies.Below the description of embodiment is used for the purpose of better understanding the present invention to provide by showing example of the invention.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence " including ... ", it is not excluded that including
There is also other identical elements in the process, method, article or equipment of the element.
Please also refer to Fig. 1 to Fig. 8, the embodiment of the invention provides a kind of optical fiber property analysis method, the method packets
It includes:
S1, the test data for obtaining several fibre cores after optical fiber cutover to be analyzed；
S2, setting analysis parameter, the analysis parameter are used to characterize the matter of several fibre cores after the optical fiber cutover
Amount；
S3, according to the test data and the analysis parameter, the test data of several fibre cores is divided into several groups
It analyzes respectively, the corresponding autoanalyzer of the test data of each group of fibre core, if the autoanalyzer analyzes corresponding group
The case point and event location in the fibre core are done, in conjunction with the theoretical length of the optical fiber, calculates several fibre cores respectively
Total attenuation and average attenuation, to obtain the qualitative data of several fibre cores of corresponding group；
S4, duplicate data in the qualitative data are excluded, to obtain the analysis result of the optical fiber.
In another alternative embodiment, above-mentioned analysis method can also include step S5:
S5, graphic software platform analyze result.
Further, test data of the optical fiber property analysis method in several fibre cores for obtaining optical fiber to be analyzed
Before further include:
Obtain the raw quality data of several fibre cores of the optical fiber to be analyzed before cutover；
It is described to exclude duplicate data in the qualitative data, it is further wrapped with obtaining the analysis result of the optical fiber property
It includes: more several raw quality datas of the fibre core before cutover and the qualitative data after cutover；Automatically it exports several described
Fibre core before the cutover with the comparison report after the cutover.
Further, described according to the test data and the analysis parameter, by the test data of several fibre cores
It is divided into several groups to analyze respectively, the corresponding autoanalyzer of the test data of each group of fibre core, the autoanalyzer analyzes
Case point and event location in several fibre cores of corresponding group calculate several institutes in conjunction with the theoretical length of the optical fiber
The respective total attenuation of fibre core and average attenuation are stated, includes: to obtain the qualitative data of several fibre cores of corresponding group
The test data of several fibre cores is divided into several groups；
Each autoanalyzer reads the test data of corresponding group；
Judge whether each group test data needs to repair；
If desired it repairs, then analyzes the test data after repairing respectively again after repairing the test data；
The case point and event location in several fibre cores are analyzed, to obtain the qualitative data of several fibre cores.
Further, the analysis result includes at least one in following item: high-quality fibre core interrupts fibre core, is general fine
Core and high attenuation fibre core.
Further, in analysis result data described in the graphic software platform further include: several fibres of graphic software platform
Respective attenuation point position, attenuation point size, fiber lengths, average attenuation in core.
Further, described
According to the test data and the analysis parameter, the test data of several fibre cores is divided into several groups difference
Analysis, the corresponding autoanalyzer of the test data of each group of fibre core, the autoanalyzer analyze several institutes of corresponding group
The case point and event location in fibre core are stated, in conjunction with the theoretical length of the optical fiber, it is respective total to calculate several fibre cores
Attenuation and average attenuation include: to obtain the qualitative data of several fibre cores of corresponding group
According to the test data and the analysis parameter, the test data of several fibre cores is divided into several groups difference
Analysis, the corresponding autoanalyzer of the test data of each group of fibre core；
The test data of several fibre cores is resolved to the plane of distance with optical power value by the autoanalyzer respectively
In coordinate system；
Corresponding optical fiber quality curve is constructed in the plane coordinate system, according to the optical fiber quality curve acquisition institute
State the case point and event location of optical fiber quality curve, wherein the event includes starting reflection, attenuation, reflection, ending reflection
At least one of in；
In conjunction with the theoretical length of the optical fiber, the respective total attenuation of several fibre cores and average attenuation are calculated, to obtain
The qualitative data of several fibre cores of group must be corresponded to.
Further, total attenuation refers to the optical fiber attenuation in effective range, wherein the effective range refers to described
The end position of the starting reflection event of optical fiber quality curve is that the initial position of starting point to the ending reflection event is terminal
Range, obtain it is described starting reflection event end position the first optical power value and it is described ending reflection event start bit
The difference between the second optical power value set, as total attenuation value in the effective range；
The average attenuation is total attenuation value in the effective range divided by effective distance, wherein it is described effectively away from
From referred to using the end position of the starting reflection event of the optical fiber quality curve as starting point to the ending reflection event
Beginning position is the distance of terminal.
Optical fiber property analysis method of the invention is discussed in detail below.
Optical fiber property analysis method provided in an embodiment of the present invention, a plurality of fibre core data parallel suitable for optical fiber are analyzed,
The key step of this method includes: that a plurality of fibre core test data is assigned in multiple analyzers, is these fibre core test datas
A set of united analysis parameter is set, and analyzer is analyzed according to the fibre core test data being assigned to, i.e., by fibre core test data
Parsing is depicted as corresponding optical fiber quality curve, according to the optical fiber being depicted as in transverse and longitudinal coordinate system of the distance with optical power value
Figure-of-merit curve analyzes the case point and event location of the curve, wherein event includes starting reflection, attenuation, reflection, ends up instead
It penetrates, it is real in conjunction with the total attenuation of theory of fiber length computation optical fiber, average attenuation according to the case point and event location analyzed
Now to the diagnosis of optical fiber, as be divided into interrupt optical fiber or high-quality optical fiber or optical fiber or high attenuation optical fiber.
Wherein, the specific implementation of the case point and event location of the curve is gone out according to the optical fiber quality tracing analysis being depicted as
Process are as follows:
According to the optical fiber quality curve being depicted as, using the position 0km as the starting position of starting reflection event, first anti-
End position of the peak end position as starting reflection event is penetrated, then for all attenuations in optical fiber quality curve, reflection
Event takes before and after each event at 1,2,3,4 four point respectively, if the near linear for crossing 1,2 two o'clocks is L1:Y=a1X+b1, cross 3,4 liang
The near linear of point is L2: Y=a2X+b2, while according to principle of least square method according to formula:
Coded data sampling point (X is randomly extracted between 1,2 two o'clocks1, Y1)、(X2, Y2)、(X3, Y3)···(Xn, Yn),
Coded data sampling point (X is randomly extracted between 3,4 two o'clocks1, Y1)、(X2, Y2)、(X3, Y3)···(Xn, Yn), sample point
How much by the testing precision of OTDR determine that sample point is more, measuring accuracy is higher.E1And E2Reach corresponding when minimum
a1、b1And a2、b2Value be optimum value, i.e., E1And E2Respectively to a1、b1And a2、b2Seek partial derivative, and being equal to for order 0 obtains two
A linear equation in two unknowns group, and bring the sampling point between 1,2 two o'clocks and the sampling point between 3,4 two o'clocks into two equation groups respectively,
Acquire a1、b1And a2、b2Value, so that it is determined that straight line L1And L2.By straight line L1And L2Intercept is as event attenuation on the vertical axis,
The starting position of each event is as event location.Case point of the event attenuation value more than or equal to 5dB is judged as ending case point,
Event location and event attenuation value are analyzed without continuing after ending case point.
Total attenuation size obtains the optical fiber attenuation value in effective range using two-point method, wherein effective range refers to optical fiber
The end position of the initiation event of figure-of-merit curve is starting point, using the initial position for the event of ending up as the range of terminal.It reads respectively
The optical power value of the initial position of the end position optical power value and ending event of initiation event, according to the optical power difference of this two o'clock
Value is as total attenuation value in effective range.
Average attenuation using total attenuation value in the above calculated effective range divided by effective distance, wherein effective distance
Refer to using the end position of the initiation event of optical fiber quality curve as starting point, using the initial position for the event of ending up as terminal away from
From.
According to the case point and event location analyzed, in conjunction with the total attenuation of theory of fiber length computation optical fiber, average attenuation
Afterwards, judge whether optical fiber is interruption optical fiber according to theory of fiber length and Fiber Analysis length, and be averaged attenuation according to optical fiber
Judge high-quality optical fiber or general optical fiber or high attenuation optical fiber.
As shown in Fig. 2, light can be completed as follows using the process of optical fiber property analysis method of the embodiment of the present invention
Concurrent management, analysis and the displaying of fine qualitative data:
Obtain the basic information data of optical fiber to be analyzed after cutover；
Import several fibre core test datas of optical fiber in batches in this fiber basis information data；
To several fibre core test datas setting analysis parameter of optical fiber；
Several fibre core test datas of optical fiber are assigned in multiple analyzers；
Analyzer respectively analyzes each fibre core test data, obtains the analysis knot of the qualitative data comprising optical fiber
Fruit.
In order to prevent Data duplication submit, by each optical fiber quality data core length, the testing time, fibre core it is total
Attenuation, average attenuation compare, if all characteristic values are identical numerical value, determine the optical fiber quality data of same characteristic features value
Repeated data each other, and obtain comparison result；
Such analysis result and comparing result are subjected to figure displaying.
In above-mentioned steps, analyzer is analyzed according to several fibre core test datas for the optical fiber being assigned to, if reading
All data informations in dry fibre core test data, if several fibre core test data formats read and standard ray-test
Data format is identical, and analyzer is attempted to read several fibre core test data files, when lacking necessary information in test data file
Or when the field format mistake of part, such as lack fiber data range or fiber data range information mistake.Analyzer skips the number
Continue to read fibre core test data remainder according to range information, after fibre core test data is read, analyzer surveys fibre core
It tries data to attempt to repair, such as fiber data range information mistake, analyzer is according to the point spacing and sampling in fibre core test data
Points calculate fiber data range, i.e. fiber data range=spacing * sampling number, repair the mistake letter occurred in file
Breath.Analyzer reads the fiber data repaired and completed, and analyzes the case point and event location in fiber data.According to analyzing
Case point and event location, total attenuation, average attenuation in conjunction with theory of fiber length computation fibre core, concrete analysis result includes
Interrupt optical fiber, high-quality optical fiber, general optical fiber and high attenuation optical fiber.
All data analysis results are shown by patterned mode, i.e., by the fibre core test data analysis of optical fiber
Attenuation point position out, attenuation point size, fiber lengths, the averagely information such as attenuation are shown.As shown in figure 3, specially will
Analysis result in fiber lengths be shown according to solid black lines, as attenuation point according to numerical values recited with correspondence circle size come
It respectively indicates, minimum circle indicates to be greater than the 0 attenuation point for being less than 0.5dB, and secondary small circle expression is less than more than or equal to 0.5dB
The attenuation point of 1.5dB, secondary great circle circle indicate the attenuation point for being less than 3dB more than or equal to 1.5dB, and maximum circle expression is more than or equal to
The attenuation point of 3dB.Further, it is also possible to the attenuation point position for being greater than setting thresholding analyzed is summarized with attenuation magnitude classification,
And carry out graphical representation.
Further, it is also possible in conjunction in real work, optical fiber cutover process come illustrate the embodiment of the present invention method it is superior
Property.According to the daily cutover process features of optical fiber, entire cutover process is divided into data before cutover application → upload cutover → examine
Data → confirmation filing after core application → upload cutover, wherein the cutover application stage fills in optical fiber title, cutover by tester
Position, cutover initial time, cutover terminate the information such as time, applicant, then proceed to upload the test optical fiber data before cutover
It is analyzed into platform, checks cutover reason for the request and optical fiber quality data before cutover and right by administrative staff after analysis
Application is examined, and tester carries out cutover operation to optical fiber and uploads the test optical fiber data after cutover after examination & approval,
After test optical fiber data analysis after cutover, cutover process carries out confirmation filing, compare before cutover optical fiber quality data with
Optical fiber quality data after cutover compare the length variation and average attenuation situation of change of every fibre core, if after cutover respectively
Length change, then the situation of change of computational length is calculated and is averagely declined if the average attenuation after cutover changes
The situation of change of consumption.
Fiber data is analyzed before from cutover application to cutover, then to the optical fiber quality analysis after cutover, forms optical fiber cutover
The quality versus of front and back, and the comparison report of output front and back automatically, in report can not only aggregate analysis cutover complete effect, in detail
Comparative analysis cutover front and back fibre core quality in thin ground carries out analysis assessment for cutover administrative staff, therefore strengthens cutover change pipe
Reason, improves cutover efficiency.Below with reference to the daily cutover scene of specific optical fiber, the present invention is specifically described.
According to 96 core fibres of one group of overall length 103.22km, with 12 core of fibre core, this is divided into 84 cores of analysis, to 96 core fibres
Unified analysis parameter is set, wherein analysis parameter includes the parameters such as high average attenuation threshold value, harmonic(-)mean number attenuation threshold value, Gao Ping
Equal attenuation threshold value is to judge the threshold value of high attenuation fibre core, and harmonic(-)mean attenuation threshold value is to judge the threshold value of high-quality fibre core, by 84 core light
Fibre is separately dispensed into different analyzers, wherein being assigned to it according to allocation order by taking the fibre core marked as the 4th core as an example
In in an analyzer after, analyzer reads the 4th core test data, checks that test data integrality, exact p-value data are complete
After repairing, by the parsing of test optical fiber data in transverse and longitudinal coordinate system of the distance with optical power value, it is depicted as corresponding optical fiber
Figure-of-merit curve.
According to the optical fiber quality curve being depicted as, using the position 0km as the starting position of starting reflection event, first anti-
End position of the peak end position 2.21km as starting reflection event is penetrated, is then declined for all in optical fiber quality curve
Consumption, reflection event take before and after each event at 1,2,3,4 four point respectively, and wherein attenuation point at 14.96km, takes front two o'clock
(13.95,15.69), (14.35,15.67) take two o'clock (15.97,16.31) after event, (16.17,16.48).
If the near linear for crossing 1,2 two o'clocks is L1: Y=a1X+b1, the near linear for crossing 3,4 two o'clocks is L2:Y=a2X+b2,
Simultaneously according to principle of least square method according to formula:
Coded data sampling point (X is randomly extracted between 1,2 two o'clocks1, Y1)、(X2, Y2)、(X3, Y3)···(Xn, Yn),
Coded data sampling point (X is randomly extracted between 3,4 two o'clocks1, Y1)、(X2, Y2)、(X3, Y3)···(Xn, Yn), E1And E2It reaches
Corresponding a when to minimum1、b1And a2、b2Value be optimum value, i.e., E1And E2Respectively to a1、b1And a2、b2Partial derivative is sought,
And being equal to for order 0 obtains two linear equation in two unknowns groups, and by the sampling point between 1,2 two o'clocks and the sampling point between 3,4 two o'clocks point
It does not bring two equation groups into, acquires a1、b1And a2、b2Value, so that it is determined that straight line L1And L2.By straight line L1And L2On the vertical axis
Intercept is as event attenuation, as 0.738dB, because the initial position of the case point is 14.96km, which is
14.96km attenuation 0.738dB, and so on attenuation at 103.43km be greater than 5dB, therefore the event that ends up is 103.43km, knot
Event location and event attenuation value are analyzed without continuing after tail event point.
Total attenuation size obtains the optical fiber attenuation value in effective range using two-point method, reads the ending of initiation event respectively
Position optical power value (2.21,13.15) and ending event initial position optical power value (103.43,35.83), according to this two
The optical power difference of point is as total attenuation value in effective range, i.e. 22.68dB.
Average attenuation using total attenuation value in the above calculated effective range divided by effective distance, wherein effective distance
Refer to using the end position of the initiation event of optical fiber quality curve as starting point, using the initial position for the event of ending up as terminal away from
From that is, averagely attenuation=22.68dB/100.35km=0.226dB/km.
According to the parameter setting of system, average attenuation is less than or equal to be judged as high-quality fibre core when 0.22dB/km, average attenuation
It is judged as general fibre core between 0.22dB/km-0.28dB/km, average attenuation is judged as that height declines when being more than or equal to 0.28dB/km
Fibre core is consumed, since average attenuation is greater than 0.22dB/km, therefore, it is determined that being run-of-the-mill fibre core for the 4th core.As shown in fig. 7, with this
After analogizing the analysis of all data, as a result it is shown by patterned mode, the content of displaying includes by optical fiber matter
It measures data and carries out graph visualization displaying, the attenuation point position that test optical fiber data are analyzed, attenuation point size, optical fiber are long
The information such as degree, average attenuation are shown.Wherein, at 31.62km, the 2nd, the test datas of 3 cores interrupt that (i.e. analysis length is small
In theoretical length) or attenuation be more than 5dB, then it is assumed that the 2nd, 3 cores be interrupt fibre core.
According to analysis situation, the attenuation point position less than 0.5dB analyzed is subjected to Classifying Sum with attenuation size, into
Row-column list is shown.
Induction-arrangement is carried out to analysis result, the attenuation concentrated area after output analysis, according to screening rule and attenuation
Region intensity and attenuation value size export corresponding regulation repair recommendation.Wherein, screening rule is to set in same distance
Total attenuation is greater than 1.5dB, and every group of distance is less than 1200m；Attenuation concentrated area is arbitrarily large attenuation point range but is no more than 500m
Region.
It is as follows that complaint analysis is repaired in illustrative regulation: cable section totally 96 fibre cores, with fibre core 12 (in all fibre cores
It accounts for 13%), utilization rate is very low；It parses to obtain available fibre core totally 73 (accounting for 76% in all fibre cores) according to analyzer, packet
Include high-quality fibre core 18, general fibre core 55；Unavailable fibre core totally 11 (accounting for 11% in all fibre cores), including interrupt fibre core
10, high attenuation fibre core 1.As it can be seen that unavailable fibre core accounting is lower, cable section quality is general, is only capable of limited guarantee and supports to lead to
The normal operation of news business, but cable section quality will be had some impact on, it is proposed that another day it is renovated, to keep cable section
Availability.
Specifically, fiber optic cable section is in the attenuation point near starting point 1.59km, having 1 3.35dB, it is proposed that weight at this
New welding will slightly improve cable section quality after regulation；Near 4.10km, there is breakpoint at 2, it is proposed that welding again at this,
Cable section quality will be significantly improved after regulation；
13.93km to 15.16km has the attenuation point of 16 total 15.64dB, it is proposed that cable is changed to the section, it will after regulation
Cable section quality is enough greatly improved；Near 31.62km, there is breakpoint at the attenuation point and 5 of 13 total 14.22dB, it is proposed that weight at this
Cable section quality will be greatly improved in new welding after regulation；Near 34.18km, has and break at the attenuation point and 3 of 2 total 1.80dB
Point, it is proposed that cable section quality will be greatly improved to welding again at this, after regulation；Near 52.06km, there are 2 total 1.55dB
Attenuation point, it is proposed that welding again at this, cable section quality will be slightly improved after regulation；90.36km to 91.24km, has
The attenuation point of 15 total 24.48dB, it is proposed that cable is changed to the section, cable section quality will be greatly improved after regulation；93.78km is attached
Closely, there is the attenuation point of 1 total 2.89dB, it is proposed that welding again at this, cable section quality will be slightly improved after regulation.
The optical fiber property analysis method of the embodiment of the present invention uses OTDR Meter Test and optical fiber monitoring with existing
Mode compare, can obtain in following technical effect at least one of:
1) it is changed into from the original mode that excel table is filled in manually and directly generates analysis report, is filled out without manually participating in
It writes.
2) it is changed into multi-fiber core batch quantity analysis from single core analysis.
3) change digital ways of presentation, be changed to graph visualization batch and show optical fiber quality situation.
4) automation arrangement is carried out to analysis result, and output regulation opinion automatically, instructs how maintenance personnel renovates.
5) control optical fiber cutover process, the quality condition before the optical fiber cutover that timely updates and after cutover, and automatically form pair
Than report.
Fig. 9 is referred to, the embodiment of the present invention also provides a kind of optical fiber property analytical equipment, comprising:
Test data obtains mould 10, for obtaining the test data of several fibre cores after optical fiber cutover to be analyzed；
Analytical parameter setup module 20, for analysis parameter to be arranged, the analysis parameter is for characterizing the optical fiber cutover
The quality of several fibre cores afterwards；
Analysis module 30 is used for according to the test data and the analysis parameter, by the test number of several fibre cores
It is analyzed respectively according to several groups are divided into, the corresponding autoanalyzer of the test data of each group of fibre core, the autoanalyzer analysis
The case point and event location in several fibre cores of corresponding group calculate several in conjunction with the theoretical length of the optical fiber out
The respective total attenuation of fibre core and average attenuation, to obtain the qualitative data of several fibre cores of corresponding group；
Module 40 is excluded, for excluding duplicate data in the qualitative data, to obtain the analysis of the optical fiber property
As a result.
In another alternative embodiment, above-mentioned apparatus can also include display module 50, analyze for graphic software platform
As a result.
Further, above-mentioned optical fiber property analytical equipment further comprises:
Raw quality data obtains module, obtains the original matter of several fibre cores of the optical fiber to be analyzed before cutover
Measure data；
The exclusion module 40 further comprises: comparing unit, original quality of more several fibre cores before cutover
Qualitative data after data and cutover；Report output unit exports several fibre cores automatically and cuts before the cutover with described
Comparison report after connecing.
Above-mentioned analysis module further comprises:
The test data of several fibre cores is divided into several groups by grouped element；
Reading unit, each autoanalyzer read every group of test data；
Judging unit, judges whether each group test data needs to repair；
Unit is repaired, is if desired repaired, then analyzes the test data after repairing respectively again after repairing the test data；
Analytical unit analyzes case point and event location in several fibre cores, to obtain several fibre cores
Qualitative data.
The analysis result includes at least one in following item: high-quality fibre core interrupts fibre core, general fibre core and high attenuation
Fibre core.
Respective attenuation point position, attenuation point in above-mentioned several fibre cores of the further graphic software platform of display module
Size, fiber lengths, average attenuation.
Analysis module further comprises:
Grouped element is used for according to the test data and the analysis parameter, by the test data of several fibre cores
It is divided into several groups to analyze respectively, the corresponding autoanalyzer of the test data of each group of fibre core；
The test data of several fibre cores is resolved to distance and light for the autoanalyzer by resolution unit respectively
In the plane coordinate system of performance number；
Acquiring unit, for constructing corresponding optical fiber quality curve in the plane coordinate system, according to the optical fiber
Figure-of-merit curve obtains the case point and event location of the optical fiber quality curve, wherein the event includes starting reflection, declines
Consumption, reflection, ending reflection at least one of；
Computing unit, for the theoretical length in conjunction with the optical fiber, calculate the respective total attenuation of several fibre cores and
Average attenuation, to obtain the qualitative data of several fibre cores of corresponding group.
Total attenuation refers to the optical fiber attenuation in effective range, wherein the effective range refers to the optical fiber quality
The end position of the starting reflection event of curve is that the initial position of starting point to the ending reflection event is the range of terminal, is obtained
Take the second of the first optical power value of the end position of the starting reflection event and the initial position of the ending reflection event
Difference between optical power value, as total attenuation value in the effective range；
The average attenuation is total attenuation value in the effective range divided by effective distance, wherein it is described effectively away from
From referred to using the end position of the starting reflection event of the optical fiber quality curve as starting point to the ending reflection event
Beginning position is the distance of terminal.
In addition, the optical fiber property analysis method in conjunction with the embodiment of the present invention described of Fig. 1 to 8 can be analyzed by optical fiber property
Equipment is realized.Figure 10 shows the hardware structural diagram of optical fiber property analytical equipment provided in an embodiment of the present invention.
Optical fiber property analytical equipment may include processor 401 and the memory 402 for being stored with computer program instructions.
Specifically, above-mentioned processor 401 may include central processing unit (CPU) or specific integrated circuit
(Application Specific Integrated Circuit, ASIC), or may be configured to implement implementation of the present invention
One or more integrated circuits of example.
Memory 402 may include the mass storage for data or instruction.For example it rather than limits, memory
402 may include hard disk drive (Hard Disk Drive, HDD), floppy disk drive, flash memory, CD, magneto-optic disk, tape or logical
With the combination of universal serial bus (Universal Serial Bus, USB) driver or two or more the above.It is closing
In the case where suitable, memory 402 may include the medium of removable or non-removable (or fixed).In a suitable case, it stores
Device 402 can be inside or outside data processing equipment.In a particular embodiment, memory 402 is nonvolatile solid state storage
Device.In a particular embodiment, memory 402 includes read-only memory (ROM).In a suitable case, which can be mask
ROM, programming ROM (PROM), erasable PROM (EPROM), the electric erasable PROM (EEPROM), electrically-alterable ROM of programming
(EAROM) or the combination of flash memory or two or more the above.
Processor 401 is by reading and executing the computer program instructions stored in memory 402, to realize above-mentioned implementation
Any one optical fiber property analysis method in example.
In one example, optical fiber property analytical equipment may also include communication interface 403 and bus 410.Wherein, such as Figure 10
Shown, processor 401, memory 402, communication interface 403 connect by bus 410 and complete mutual communication.
Communication interface 403 is mainly used for realizing in the embodiment of the present invention between each module, device, unit and/or equipment
Communication.
Bus 410 includes hardware, software or both, and the component of optical fiber property analytical equipment is coupled to each other together.It lifts
It for example rather than limits, bus may include accelerated graphics port (AGP) or other graphics bus, enhancing Industry Standard Architecture
(EISA) bus, front side bus (FSB), super transmission (HT) interconnection, Industry Standard Architecture (ISA) bus, infinite bandwidth interconnect, are low
Number of pins (LPC) bus, memory bus, micro- channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-
Express (PCI-X) bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association part (VLB) bus or
The combination of other suitable buses or two or more the above.In a suitable case, bus 410 may include one
Or multiple buses.Although specific bus has been described and illustrated in the embodiment of the present invention, the present invention considers any suitable bus
Or interconnection.
The optical fiber property analytical equipment can be executed the present invention and be implemented based on the network management performance index for getting cell to be measured
Optical fiber property analysis method in example, to realize the optical fiber property analysis method described in conjunction with Fig. 1 to 8.
In addition, in conjunction with the optical fiber property analysis method in above-described embodiment, the embodiment of the present invention can provide a kind of computer
Readable storage medium storing program for executing is realized.Computer program instructions are stored on the computer readable storage medium；The computer program refers to
Enable any one the optical fiber property analysis method realized in above-described embodiment when being executed by processor.
It should be clear that the invention is not limited to specific configuration described above and shown in figure and processing.
For brevity, it is omitted here the detailed description to known method.In the above-described embodiments, several tools have been described and illustrated
The step of body, is as example.But method process of the invention is not limited to described and illustrated specific steps, this field
Technical staff can be variously modified, modification and addition after understanding spirit of the invention, or suitable between changing the step
Sequence.
Functional block shown in structures described above block diagram can be implemented as hardware, software, firmware or their group
It closes.When realizing in hardware, it may, for example, be electronic circuit, specific integrated circuit (ASIC), firmware appropriate, insert
Part, function card etc..When being realized with software mode, element of the invention is used to execute program or the generation of required task
Code section.Perhaps code segment can store in machine readable media program or the data-signal by carrying in carrier wave is passing
Defeated medium or communication links are sent." machine readable media " may include any medium for capableing of storage or transmission information.
The example of machine readable media includes electronic circuit, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), soft
Disk, CD-ROM, CD, hard disk, fiber medium, radio frequency (RF) link, etc..Code segment can be via such as internet, inline
The computer network of net etc. is downloaded.
It should also be noted that, the exemplary embodiment referred in the present invention, is retouched based on a series of step or device
State certain methods or system.But the present invention is not limited to the sequence of above-mentioned steps, that is to say, that can be according in embodiment
The sequence referred to executes step, may also be distinct from that the sequence in embodiment or several steps are performed simultaneously.
The above description is merely a specific embodiment, it is apparent to those skilled in the art that,
For convenience of description and succinctly, the system, module of foregoing description and the specific work process of unit can refer to preceding method
Corresponding process in embodiment, details are not described herein.It should be understood that scope of protection of the present invention is not limited thereto, it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of optical fiber property analysis method, which is characterized in that the described method includes:
The test data of several fibre cores after obtaining optical fiber cutover to be analyzed；
Setting analysis parameter, the analysis parameter are used to characterize the quality of several fibre cores after the optical fiber cutover；
According to the test data and the analysis parameter, the test data of several fibre cores is divided into several groups and is divided respectively
Analysis, the corresponding autoanalyzer of the test data of each group of fibre core, the autoanalyzer analyze the several described of corresponding group
Case point and event location in fibre core calculate that several fibre cores are respective always to decline in conjunction with the theoretical length of the optical fiber
Consumption and average attenuation, to obtain the qualitative data of several fibre cores of corresponding group；
Duplicate data in the qualitative data are excluded, to obtain the analysis result of the optical fiber property.
2. optical fiber property analysis method according to claim 1, which is characterized in that the optical fiber property analysis method is in institute
Before stating the test data for obtaining several fibre cores of optical fiber to be analyzed further include:
Obtain the raw quality data of several fibre cores of the optical fiber to be analyzed before cutover；
It is described to exclude duplicate data in the qualitative data, further comprise to obtain the analysis result of the optical fiber property:
More several raw quality datas of the fibre core before cutover and the qualitative data after cutover；Automatically several fibre cores are exported
Before the cutover with the comparison report after the cutover.
3. optical fiber property analysis method according to claim 1, which is characterized in that described according to the test data and institute
Analysis parameter is stated, the test data of several fibre cores is divided into several groups and is analyzed respectively, the test data pair of each group of fibre core
An autoanalyzer is answered, the autoanalyzer analyzes the case point and event location in several fibre cores of corresponding group,
In conjunction with the theoretical length of the optical fiber, the respective total attenuation of several fibre cores and average attenuation are calculated, to obtain corresponding group
The qualitative datas of several fibre cores include:
The test data of several fibre cores is divided into several groups；
Each autoanalyzer reads the test data of corresponding group；
Judge whether each group test data needs to repair；
If desired it repairs, then analyzes the test data after repairing respectively again after repairing the test data；
The case point and event location in several fibre cores are analyzed, to obtain the qualitative data of several fibre cores.
4. optical fiber property analysis method according to claim 1, which is characterized in that the analysis result includes in following item
At least one of: high-quality fibre core interrupts fibre core, general fibre core and high attenuation fibre core.
5. optical fiber property analysis method according to claim 1, which is characterized in that analyze knot described in the graphic software platform
Fruit data include: respective attenuation point position in several fibre cores of graphic software platform, attenuation point size, fiber lengths,
Average attenuation.
6. optical fiber property analysis method according to claim 1, which is characterized in that described according to the test data and institute
Analysis parameter is stated, the test data of several fibre cores is divided into several groups and is analyzed respectively, the test data pair of each group of fibre core
An autoanalyzer is answered, the autoanalyzer analyzes the case point and event location in several fibre cores of corresponding group,
In conjunction with the theoretical length of the optical fiber, the respective total attenuation of several fibre cores and average attenuation are calculated, to obtain corresponding group
The qualitative datas of several fibre cores include:
According to the test data and the analysis parameter, the test data of several fibre cores is divided into several groups and is divided respectively
Analysis, the corresponding autoanalyzer of the test data of each group of fibre core；
The test data of several fibre cores is resolved to the plane coordinates of distance with optical power value by the autoanalyzer respectively
In system；
Corresponding optical fiber quality curve is constructed in the plane coordinate system, according to light described in the optical fiber quality curve acquisition
The case point and event location of fine figure-of-merit curve, wherein the event include starting reflection, attenuation, reflection, ending reflect in
At least one of；
In conjunction with the theoretical length of the optical fiber, the respective total attenuation of several fibre cores and average attenuation are calculated, with acquisition pair
The qualitative data for several fibre cores that should be organized.
7. optical fiber property analysis method according to claim 6, which is characterized in that total attenuation refers in effective range
Optical fiber attenuation, wherein the effective range refers to is with the end position of the starting reflection event of the optical fiber quality curve
The initial position of point to the ending reflection event is the range of terminal, obtains the of the end position of the starting reflection event
Difference between second optical power value of the initial position of one optical power value and the ending reflection event, as effective model
Enclose interior total attenuation value；
The average attenuation is total attenuation value in the effective range divided by effective distance, wherein the effective distance is
Refer to the start bit using the end position of the starting reflection event of the optical fiber quality curve as starting point to the ending reflection event
It is set to the distance of terminal.
8. a kind of optical fiber property analytical equipment, which is characterized in that described device includes:
Test data obtains module, for obtaining the test data of several fibre cores after optical fiber cutover to be analyzed；
Analytical parameter setup module, for analysis parameter to be arranged, if the analysis parameter is used to characterize after the optical fiber cutover
Do the quality of the fibre core；
Analysis module, for according to the test data and the analysis parameter, the test data of several fibre cores to be divided into
Several groups are analyzed respectively, and the corresponding autoanalyzer of the test data of each group of fibre core, the autoanalyzer analyzes correspondence
Case point and event location in several fibre cores of group calculate several fibres in conjunction with the theoretical length of the optical fiber
The respective total attenuation of core and average attenuation, to obtain the qualitative data of several fibre cores of corresponding group；
Module is excluded, for excluding duplicate data in the qualitative data, to obtain the analysis result of the optical fiber property.
9. a kind of optical fiber property analytical equipment characterized by comprising at least one processor, at least one processor and
The computer program instructions of storage in the memory, are realized when the computer program instructions are executed by the processor
Such as method of any of claims 1-7.
10. a kind of computer readable storage medium, is stored thereon with computer program instructions, which is characterized in that when the calculating
Such as method of any of claims 1-7 is realized when machine program instruction is executed by processor.
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