CN104125010B - A kind of method and device of Cable's Fault location - Google Patents
A kind of method and device of Cable's Fault location Download PDFInfo
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- CN104125010B CN104125010B CN201310148548.6A CN201310148548A CN104125010B CN 104125010 B CN104125010 B CN 104125010B CN 201310148548 A CN201310148548 A CN 201310148548A CN 104125010 B CN104125010 B CN 104125010B
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Abstract
The invention discloses the method and device of a kind of Cable's Fault location, wherein the method includes: receive the test result of the monitored optical cable that OTDR sends；Break down cable length a little according to described test result calculations；According to default lightguide cable link resource data model orientation fault points of optical cables.The present invention compensate for existing cable resource deficiency affects the deficiency of Cable's Fault fast locating algorithm, improve the practicality of optical cable location algorithm technology, solve the problem of linking in resource model and fibre core Monitoring Data interworking technology so that user can be positioned by the method fast failure simultaneously.
Description
Technical field
The present invention relates to technical field of cable transmission, particularly relate to method and the dress of a kind of Cable's Fault location
Put.
Background technology
Transmission cable is the bridge of network service, finds that optical cable fibre core hidden danger becomes to attach most importance to rapid rush-repair in time
In weight, from fault diachronic analysis for several times, find fault points of optical cables geographical position and account for whole emergency repair time
About half time (especially when night and vile weather).The key factor shortening blocking-up duration is quickly
Fault point geographical position, and fault message is notified in time repair personnel, shorten to greatest extent
Block duration.Therefore, utilize Cable's Fault quick location technique locating optical cable trouble point to when shortening blocking-up
Long and to complete KPI index particularly important.
The Chinese patent application file of Application No. CN201110376086.4 discloses a kind of cable resource
Centralizing inspection and management system.This system adds one layer of monitoring operating platform based on two grades of monitoring management platforms
System architecture, at least by provincial, and municipal level and local level Two monitor levels central regulator, and in the aspect of execution by multiple
Monitoring station correspond in fiber optic network with optical fiber or standby fine provide OTDR(Optical Time Domain
Reflectometer, optical time domain reflectometer) various ways such as test, luminous power test and linkage test thereof
Monitoring.System additionally provides abundant system management function, especially can be according to system configuration parameter
Drawing the resource topology figure of whole network, fast accurate when utilizing GIS technology to help to safeguard and look into barrier is determined
Position.
Existing Cable's Fault location technology has following defects that by utilizing GIS technology to fiber cable network
The management of resource, by pipeline (boundary mark) management, calculator room equipment management, optical cable (fibre core) network
Management realize optical cable location, resource management's granularity is low, and data volume is little, and model is simple, at actual optical cable
Route is ignored the reserving of optical cable, draws, hangs wall, sag, the joint impact on optical cable core length,
Thus affect the geo-location position of fault points of optical cables.
Summary of the invention
In order to solve the coarse technical problem in fault points of optical cables geo-location position in prior art, this
The specific targets affecting cable length are introduced light by the method and device of a kind of Cable's Fault of bright proposition location
Cable fault location model, by point ergodic algorithm, relatively and absolute growth computational algorithm etc. determines location
Critical events position in resource model.
One aspect of the present invention, it is proposed that the method for a kind of Cable's Fault location, including: receive OTDR
The test result of the monitored optical cable sent；Long according to the optical cable that described test result calculations breaks down a little
Degree；According to default lightguide cable link resource data model orientation fault points of optical cables.
Preferably, also wrap before the step of the test result of the monitored optical cable that described reception OTDR sends
Include: when the loss of lightguide cable link is more than predetermined threshold value, described lightguide cable link is tested by OTDR.
Preferably, described basis preset lightguide cable link resource data model orientation trouble point and Optical Cable
Step after also include: according to described lightguide cable link actual fault point and described locating optical cable trouble point
Lightguide cable link resource data model described in Information revision.
Preferably, described default lightguide cable link resource data model includes setting up described lightguide cable link resource
Incidence relation between object model and described resource object.
Preferably, the described association set up between described lightguide cable link resource object model and described resource object
Relation farther includes step: obtain fiber cable network route topological based on the GIS number of described lightguide cable link
According to；Obtain the optical cable future part of described lightguide cable link, draw, hang wall, sag and joint etc. to described optical cable
The influential resource data of circuit core length；According to geographical coordinate position set up optical cable future part, draw,
Hang wall, sag and joint in the logic connecting relation of every section of optical cable.
Preferably, the step of the lightguide cable link resource data model orientation fault points of optical cables that described basis is preset
Including: obtain each critical events point in fiber optic testing result；By described critical events point and described light
Cable road resource data model is compared, and determines critical events dot grid scope；According to described crucial thing
The grid scope of part point, utilizes convergence alignment algorithm location critical events in described resource data model
Position.
Another aspect of the present invention, it is also proposed that the device of a kind of Cable's Fault location, including receiving mould
Block, computing module and locating module, wherein: described receiver module, for receiving being supervised of OTDR transmission
The test result of light-metering cable；Described computing module, for breaking down a little according to described test result calculations
Cable length；Described locating module, for according to the lightguide cable link resource data model orientation light preset
Cable trouble point.
Preferably, also include testing module, when the loss of lightguide cable link is more than predetermined threshold value, described
Test module, for testing described lightguide cable link by OTDR.
Preferably, also include correcting module, for fixed with described according to described lightguide cable link actual fault point
Lightguide cable link resource data model described in the Information revision of position fault points of optical cables.
Preferably, also include presetting module, be used for setting up described lightguide cable link resource object model and described
Incidence relation between resource object.
Preferably, described presetting module farther includes route topological acquiring unit, resource data obtains single
Unit and logical relation set up unit, wherein: described route topological acquiring unit, are used for obtaining described optical cable
Fiber cable network route topological based on the GIS data of circuit；Described resource data acquiring unit, is used for obtaining
Take described lightguide cable link optical cable future part, draw, to hang wall, sag and joint etc. fine to described lightguide cable link
The influential resource data of core length；Described logical relation sets up unit, for according to geographical coordinate position
Set up optical cable future part, draw, hang wall, sag and joint in the logic connecting relation of every section of optical cable.
Preferably, described locating module also includes critical events point acquiring unit, comparing unit and crucial thing
Part point location unit, wherein: described critical events point acquiring unit, is used for obtaining in fiber optic testing result
Each critical events point；Described comparing unit, for by described critical events point and described lightguide cable link
Resource data model is compared, and determines critical events dot grid scope；Described critical events point location list
Unit, for the grid scope according to described critical events point, utilizes convergence alignment algorithm to position critical events
Position in described resource data model.
The method and device of the Cable's Fault location of the present invention, will affect the optical cable of cable length by using
Reserve, draw, hang the leading in cable fault such as logic connecting relation of wall, sag, joint and tested optical fiber
Location model, is carried out affecting the joint of optical cable attenuation, ODF and optical cross box etc. in resource with grid method
Paragraph divides, and by optical cable future part, draw, hang wall, sag etc. and affect the data of length and be divided into each
Paragraph, sets up critical events dot grid model, by point ergodic algorithm, relatively and the calculating of absolute growth
Algorithm, compares test event point with grid model in resource model, determines critical events dot grid
Scope, further according to cut-off point and nearest attenuation points distance, utilizes convergence alignment algorithm to be accurately positioned crucial thing
Part position in resource model.The present invention compensate for existing cable resource deficiency, and to affect Cable's Fault fast
The deficiency of speed location algorithm, improves the practicality of optical cable location algorithm technology, solves resource mould simultaneously
The problem of linking in type and fibre core Monitoring Data interworking technology so that user can be by the method quickly event
Barrier location.
Other features and advantages of the present invention will illustrate in the following description, and, partly from froming the perspective of
Bright book becomes apparent, or understands by implementing the present invention.The purpose of the present invention is excellent with other
Point can come real by structure specifically noted in the description write, claims and accompanying drawing
Now and obtain.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, with
Embodiments of the invention are used for explaining the present invention together, are not intended that limitation of the present invention.At accompanying drawing
In:
Fig. 1 is the flow chart of the method for a kind of Cable's Fault location in the embodiment of the present invention；
Fig. 2 is the flow process setting up the incidence relation between lightguide cable link resource object model and described resource object
Figure；
The flow chart of the lightguide cable link resource data model orientation fault points of optical cables preset according to Fig. 3；
Fig. 4 is the flow chart that the Cable's Fault localization method of the present invention is applied to concrete detecting system；
Fig. 5 is the method flow diagram calculating the cable length broken down a little；
The data affecting cable length according to Fig. 6 set up the schematic diagram of grid model；
Fig. 7 is the structural representation of the device of a kind of Cable's Fault location in the embodiment of the present invention；
Fig. 8 is the structural representation of presetting module in Cable's Fault positioner；
Fig. 9 is the structural representation of locating module in Cable's Fault positioner.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that described herein
Preferred embodiment be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 1 is the flow chart of the method for a kind of Cable's Fault location in the embodiment of the present invention.As it is shown in figure 1,
The method comprises the following steps:
The test result of the monitored optical cable that step 101, reception OTDR send；
Step 102, break down cable length a little according to described test result calculations；
The lightguide cable link resource data model orientation fault points of optical cables that step 103, basis are preset.
Preferably, also include before step 101: when the loss of lightguide cable link is more than predetermined threshold value,
Described lightguide cable link is tested by OTDR.Also include after step 103: real according to described lightguide cable link
Trouble point, border and lightguide cable link resource data model described in the Information revision of described locating optical cable trouble point.Institute
State default lightguide cable link resource data model and include setting up described lightguide cable link resource object model and described
Incidence relation between resource object.
Fig. 2 is the flow process setting up the incidence relation between lightguide cable link resource object model and described resource object
Figure, specifically includes following steps:
Step 201, obtain fiber cable network route topological based on the GIS data of described lightguide cable link；
Step 202, obtain the optical cable future part of described lightguide cable link, draw, hang wall, sag and joint etc.
On the described influential resource data of lightguide cable link core length；
Step 203, set up optical cable future part according to geographical coordinate position, draw, hang wall, sag and joint
Logic connecting relation in every section of optical cable.
The flow chart of the lightguide cable link resource data model orientation fault points of optical cables preset according to Fig. 3, tool
Body comprises the following steps:
Step 301, each critical events point obtained in fiber optic testing result；
Step 302, described critical events point is compared with described lightguide cable link resource data model,
Determine critical events dot grid scope；
Step 303, grid scope according to described critical events point, utilize convergence alignment algorithm location to close
Key events position in described resource data model.
Fig. 4 is the flow chart that the Cable's Fault localization method of the present invention is applied to concrete detecting system, as
Shown in Fig. 4, relate generally to RTU far-end monitoring station equipment, monitoring center's service, note Mail Gateway,
Terminal, monitoring personnel etc., mainly comprise the steps that
Step 401, RTU monitoring of tools Optical Cable, when line loss is greatly to setting threshold value, automatically
Trigger OTDR this monitored optical fiber is tested；
Step 402, OTDR test result information send to monitoring center's service；
Step 403, monitoring center's service calculate the cable length broken down a little；
Step 404, monitoring center's server extract the reference curve of line resource data and setting, calculate
The standard point that actual route interface matches with OTDR curve case point, and find the nearest standard in trouble point
Point and the distance put to this, by trouble point and physical optical route locating.
Step 405, monitoring center's server pass through the modes such as note, mail, phone, automatically by fault
The point information such as position and neighbouring terrain surface specifications notifies related personnel, and occurs that alarm carries at monitoring terminal computer
Show, GIS map is shown trouble point, and searches for neighbouring terrain surface specifications, for maintainer reference.
Step 406, rush to repair successfully after, can automatically trigger RTU again detect；
Step 407, when there is deviation the position that physical fault position and system are given, operator can be by
The physical location runout information revision broken down preserves, as new standard point.
Fig. 5 is to calculate, in step 403 and step 404, the light broken down a little in above-mentioned concrete detecting system
The method flow diagram of cable length, comprises the following steps:
This monitored optical fiber is tested by step 501, OTDR, trigger optical cable fault location algorithm flow process.
Step 502, the model data of acquisition resource.
Resource model data are to be provided by line resource management function, mainly include 46 kinds of resource object models
And the incidence relation between resource object.First the fiber cable network route topological based on GIS of resource is obtained
Data, optical cable divides according to 50 meters one section, secondly, refine to (the electricity of each support node to optical cable
Bar, markstone, staff well) management of distance, obtain optical cable future part, draw, hang wall, sag, joint
Deng data influential on optical cable core length, such as: the coordinate of these objects and length.Its three, according to
Geographical coordinate position is set up optical cable future part, is drawn, hangs the logic of wall, sag, joint and every section of optical cable even
Connect relation, instantiation tested optical fiber model.
Each critical events point on test curve, attenuation point during step 503, acquisition fiber optic testing.
As a example by optical cable disconnects, get optical cable cut-off point and nearest attenuation points be critical events point,
Point ergodic algorithm, the relative and computational algorithm of absolute growth in by, by test event point and resource model
Middle grid model is compared, and determines critical events dot grid scope, further according to cut-off point and decay recently
Point distance, utilizes convergence alignment algorithm to be accurately positioned critical events position in resource model.
Step 504, by the critical events point of the disconnected cable position in the resource model WGS84 by GIS
Coordinate system is converted to latitude and longitude coordinates, and it is the most how many to carry out arriving of space buffer calculating according to this coordinate
Reference features in the range of meter or mark, generate fault location report data and GIS map graph data.
Step 505, export positioning result by modes such as software interface, short multimedia message, WAP.
According to mobile network's construction specification, the every several km of engineering construction have the rule of a fiber cable joint,
With grid method, resource will affect key point (joint, ODF and the optical cross box etc.) section of carrying out of optical cable attenuation
Fall to dividing, and by optical cable future part, draw, hang wall, sag etc. and affect the data of length and be divided into each section
Fall, set up grid model.
The data affecting cable length according to Fig. 6 set up the schematic diagram of grid model, as shown in Figure 6,
Optical cable stress and strain model can be divided into n level according to computational accuracy, and this example is with 3 square kilometres and 50 square metres 2 grades
Citing.First be that a scope delimit grid on map with every 3 kilometers, by optical cable, joint, sag,
Reserve, draw first-class object and be mapped on this grid according to coordinate, initialize and calculate the covered light of each grid
The length range of cable, it is simple to rough calculation.Secondly, according to the big grid determined, by big grid according to 50
Square metre again divide, more accurately determine the length that grid covers optical cable and the key point comprised, it is simple to fast
Speed retrieval.
Fig. 7 is the structural representation of the device of a kind of Cable's Fault location in the embodiment of the present invention.Such as Fig. 7
Shown in, this device includes receiver module 701, computing module 702 and locating module 703, wherein:
Described receiver module, for receiving the test result of the monitored optical cable that OTDR sends；
Described computing module, for breaking down cable length a little according to described test result calculations；
Described locating module, for according to the lightguide cable link resource data model orientation fault points of optical cables preset.
Preferably, also include testing module, when the loss of lightguide cable link is more than predetermined threshold value, described
Test module, for testing described lightguide cable link by OTDR.Correcting module, is used for, according to
Described lightguide cable link actual fault point and lightguide cable link money described in the Information revision of described locating optical cable trouble point
Source data model.Presetting module, is used for setting up described lightguide cable link resource object model and described resource pair
As incidence relation.
Fig. 8 is the structural representation of presetting module in Cable's Fault positioner, and described presetting module enters one
Step includes that route topological acquiring unit 801, resource data acquiring unit 802 and logical relation set up unit
803, wherein: described route topological acquiring unit, for obtain the fiber cable network of described lightguide cable link based on
The route topological data of GIS；Described resource data acquiring unit, for obtaining the light of described lightguide cable link
Cable is reserved, draws, is hung wall, sag and joint etc. to the described influential resource of lightguide cable link core length
Data；Described logical relation sets up unit, for according to geographical coordinate position set up optical cable future part, draw,
Hang wall, sag and joint in the logic connecting relation of every section of optical cable.
Fig. 9 is the structural representation of locating module in Cable's Fault positioner, and described locating module also wraps
Include critical events point acquiring unit 901, comparing unit 902 and critical events point location unit 903, wherein:
Described critical events point acquiring unit, for obtaining each critical events point in fiber optic testing result；Institute
State comparing unit, for described critical events point is compared with described lightguide cable link resource data model,
Determine critical events dot grid scope；Described critical events point location unit, for according to described crucial thing
The grid scope of part point, utilizes convergence alignment algorithm location critical events in described resource data model
Position.
It is noted that above example is only in order to illustrate rather than restriction, the present invention is also and not only
Being limited to the example above, all are without departing from the technical scheme of the spirit and scope of the present invention and improvement thereof, and it is equal
Should contain in scope of the presently claimed invention.
Claims (8)
1. the method for a Cable's Fault location, it is characterised in that including:
Receive the test result of the monitored optical cable that OTDR sends；
Break down cable length a little according to described test result calculations；
According to default lightguide cable link resource data model orientation fault points of optical cables；
Described default lightguide cable link resource data model includes setting up described lightguide cable link resource object model
And the incidence relation between described resource object；
The described incidence relation set up between described lightguide cable link resource object model and described resource object enters one
Walk and include step:
Obtain fiber cable network route topological based on the GIS data of described lightguide cable link；
Obtain the optical cable future part of described lightguide cable link, draw, hang wall, sag and joint to described cable line
The influential resource data of road core length；
Set up optical cable future part according to geographical coordinate position, draw, hang wall, sag and joint in every section of optical cable
Logic connecting relation.
Method the most according to claim 1, it is characterised in that the quilt that described reception OTDR sends
Also include before the step of the test result of monitoring optical cable:
When the loss of lightguide cable link is more than predetermined threshold value, described lightguide cable link is tested by OTDR.
Method the most according to claim 1 and 2, it is characterised in that the optical cable that described basis is preset
Also include after line resource data model fault point step:
According to described lightguide cable link actual fault point and light described in the Information revision of described locating optical cable trouble point
Cable road resource data model.
Method the most according to claim 1, it is characterised in that the lightguide cable link that described basis is preset
The step of resource data model orientation fault points of optical cables includes:
Obtain each critical events point in fiber optic testing result；
Described critical events point is compared with described lightguide cable link resource data model, determines crucial thing
Part dot grid scope；
According to the grid scope of described critical events point, utilize convergence alignment algorithm location critical events in institute
State the position in resource data model.
5. the device of Cable's Fault location, it is characterised in that include receiver module, computing module,
Locating module and presetting module, wherein:
Described receiver module, for receiving the test result of the monitored optical cable that OTDR sends；
Described computing module, for breaking down cable length a little according to described test result calculations；
Described locating module, for according to the lightguide cable link resource data model orientation fault points of optical cables preset；
Described presetting module, is used for setting up between described lightguide cable link resource object model and described resource object
Incidence relation；
Described presetting module farther includes route topological acquiring unit, resource data acquiring unit and logic
Relation sets up unit, wherein:
Described route topological acquiring unit, based on GIS for obtaining the fiber cable network of described lightguide cable link
Route topological data；
Described resource data acquiring unit, for obtaining the optical cable future part of described lightguide cable link, drawing, hang
Wall, sag and joint are on the described influential resource data of lightguide cable link core length；
Described logical relation sets up unit, for according to geographical coordinate position set up optical cable future part, draw,
Hang wall, sag and joint in the logic connecting relation of every section of optical cable.
Device the most according to claim 5, it is characterised in that also include testing module, work as optical cable
When the loss of circuit is more than predetermined threshold value, described test module, it is used for by OTDR described cable line
Road is tested.
7., according to the device described in claim 5 or 6, it is characterised in that also include correcting module, use
In, according to described lightguide cable link actual fault point and light described in the Information revision of described locating optical cable trouble point
Cable road resource data model.
Device the most according to claim 5, it is characterised in that described locating module also includes key
Case point acquiring unit, comparing unit and critical events point location unit, wherein:
Described critical events point acquiring unit, for obtaining each critical events point in fiber optic testing result；
Described comparing unit, for entering described critical events point with described lightguide cable link resource data model
Row comparison, determines critical events dot grid scope；
Described critical events point location unit, for the grid scope according to described critical events point, utilizes
Critical events position in described resource data model, convergence alignment algorithm location.
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| CN201310148548.6A CN104125010B (en) | 2013-04-25 | 2013-04-25 | A kind of method and device of Cable's Fault location |
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| CN201310148548.6A CN104125010B (en) | 2013-04-25 | 2013-04-25 | A kind of method and device of Cable's Fault location |
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| CN102088315A (en) * | 2011-03-18 | 2011-06-08 | 北京锐锋钝石科技有限公司 | Optical fiber failure positioning system and method |
| CN102735996A (en) * | 2012-07-17 | 2012-10-17 | 国家电网公司 | Exact locating method for fault points of submarine cable |
| CN102820920A (en) * | 2012-08-20 | 2012-12-12 | 慈溪市供电局 | Fault point localizing method and device |
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