CN106330298A - Real-time optical cable fiber core monitoring system - Google Patents
Real-time optical cable fiber core monitoring system Download PDFInfo
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- CN106330298A CN106330298A CN201610767779.9A CN201610767779A CN106330298A CN 106330298 A CN106330298 A CN 106330298A CN 201610767779 A CN201610767779 A CN 201610767779A CN 106330298 A CN106330298 A CN 106330298A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
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Abstract
The invention relates to a real-time optical cable fiber core monitoring system comprising an idle fiber core monitoring unit arranged at a to-be-monitored optical cable, an online monitoring unit arranged at the to-be-monitored optical cable, and a transmission and alarm linkage monitoring unit connected with an optical transmission device network management system; and the type of a generated fault is determined by acquiring fault monitoring information of the three units, and an accurate position of the fault is determined in combination with a GIS geographic information module. The real-time optical cable fiber core monitoring system provided by the invention provides an efficient, complete and convenient real-time optical cable monitoring system, which can find and forecast the hidden trouble of faults of the optical cable in time.
Description
Technical field
The present invention relates to optical cable detect in real time and network safety filed, particularly a kind of optical cable fibre core monitors system in real time
System.
Background technology
Networks of Fiber Communications scale constantly expands in recent years, and transfer rate improves constantly, but the management level of optical cable are delayed
In the level of development of Networks of Fiber Communications, the external force such as maintenance and management problem is outstanding day by day, municipal construction destroy and thunderbolt or
Fall the contingency such as tower, cause Cable's Fault number of times to be continuously increased, have impact on the properly functioning of Networks of Fiber Communications.Therefore, profit
By the means of scientific and efficient lightguide cable link it is monitored and manages, monitoring the deterioration condition of optical cable fibre core index in real time, carry
Front forecast Cable's Fault hidden danger, finds the accidental interruption of optical cable in time, to reduce the incidence rate of optical cable accidental interruption, shortens light
The fault time of cable, it appears most important.
Summary of the invention
It is an object of the invention to provide a kind of optical cable fibre core real-time monitoring system, lack present in prior art to overcome
Fall into.
For achieving the above object, the technical scheme is that a kind of optical cable fibre core real-time monitoring system, it is provided that one connects
Optical cable to be monitored between optical transmission device, including: one it is arranged at idle fibre core monitoring means at optical cable to be monitored, one sets
It is placed in the on-line monitoring unit at optical cable to be monitored and a transmitting warning connection being connected with optical transmission equipment network management system
Dynamic monitoring means；Described idle fibre core monitoring means and described on-line monitoring unit are connected to a RTU main control module, and
Malfunction monitoring signal is sent to this RTU main control module；Described RTU main control module is connected to one and is arranged at monitoring central station
Server, and the preset configuration parameter of malfunction monitoring signal and this RTU main control module is uploaded to this server；Described biography
Defeated alarm linkage monitoring means is connected with described server, and the malfunction monitoring warning signal of acquisition is uploaded to this server；
Preset configuration parameter or described transmitting warning that described server is uploaded according to described RTU main control module link on monitoring means
The malfunction monitoring warning signal passed, and determine, by a GIS geography information module, the geographical position that fault produces；Described server
By the malfunction monitoring signal according to described idle fibre core monitoring means and determined according to described on-line monitoring unit and according to institute
State the transmitting warning linkage malfunction monitoring warning signal that determines of monitoring means and carry out Treatment Analysis, generate fault type information, and
It is supplied to operation maintenance personnel and carries out reference；Described server will be according to described idle fibre core monitoring means, according to described on-line monitoring
Unit and determine that geographical position carries out Treatment Analysis according to described transmitting warning linkage monitoring means, generates fault geographical position
Information, and be supplied to operation maintenance personnel and carry out reference.
In an embodiment of the present invention, described idle fibre core monitoring means include one respectively with non-traffic in optical cable to be monitored
An OTDR fault scanning module, one the oneth OPM Optical Power Monitor Module and the far-end light that signal transmission fibre core is connected
Source OLS；A described OTDR fault scanning module and a described OPM Optical Power Monitor Module are arranged at homonymy, described far
End light source OLS is arranged at the heteropleural of a described OPM Optical Power Monitor Module；
A described OTDR fault scanning module and a described OPM Optical Power Monitor Module are connected to described RTU master
Control module；Described RTU main control module obtains the OPM optical power signals uploaded by a described OPM Optical Power Monitor Module, and
Judge whether this OPM optical power signals is in first and presets early-warning parameters scope, and corresponding acquisition triggers a described OTDR event
The OTDR fault scanning signal that barrier scan module is uploaded；Described RTU main control module is by this OTDR fault scanning signal and is somebody's turn to do
The preset configuration parameter of RTU main control module is uploaded to described server；Described server is uploaded according to described RTU main control module
Preset configuration parameter, and determine fault geographical location information by described GIS geography information module, by described OTDR fault
Scanning signal determines fault type information.
In an embodiment of the present invention, a described OTDR fault scanning module and a described OPM optical power monitoring
Module is connected to same non-traffic signal transmission fibre core or different non-traffic signal transmission fibre core in described optical cable to be monitored.
In an embodiment of the present invention, described on-line monitoring unit includes that one is fine with service signal transmission in optical cable to be monitored
The 2nd OPM Optical Power Monitor Module that core is connected and be arranged at the of homonymy with described 2nd OPM Optical Power Monitor Module
Two OTDR fault scanning modules；
Described 2nd OPM Optical Power Monitor Module and described 2nd OTDR fault scanning module are connected to described RTU master
Control module；Described RTU main control module obtains the OPM optical power signals uploaded by described 2nd OPM Optical Power Monitor Module, and
Judge whether this OPM optical power signals is in second and presets early-warning parameters scope, and corresponding acquisition triggers described 2nd OTDR event
The OTDR fault scanning signal that barrier scan module is uploaded；Described RTU main control module is by this OTDR fault scanning signal and is somebody's turn to do
The preset configuration parameter of RTU main control module is uploaded to described server；Described server is uploaded according to described RTU main control module
Preset configuration parameter, and determine fault geographical location information by described GIS geography information module, by described OTDR fault
Scanning signal determines fault type information.
In an embodiment of the present invention, described 2nd OPM Optical Power Monitor Module be connected to through a beam splitter described in wait to supervise
Service signal transmission fibre core in light-metering cable；It is non-that described 2nd OTDR fault scanning module is connected in described optical cable to be monitored
Service signal transmission fibre core.
In an embodiment of the present invention, described 2nd OPM Optical Power Monitor Module be connected to through a beam splitter described in wait to supervise
Service signal transmission fibre core one end in light-metering cable, described 2nd OTDR fault scanning module accesses through wavelength-division multiplex unit F CM
This service signal transmission fibre core one end, the other end of this service signal transmission fibre core accesses optical transmission device through a wave filter；Should
Wave filter also be arranged at described optical cable offside service signal to be monitored transmission fibre core on another wavelength-division multiplex unit F CM phase
Even.
In an embodiment of the present invention, described transmitting warning linkage monitoring means gathers described by alarm interface adapter
In optical transmission equipment network management system optical transmission device upload thus monitoring barrier warning signal, and wait to supervise described in being connected to
The 3rd OTDR fault scanning module in light-metering cable obtains OTDR fault scanning signal；Described transmitting warning linkage monitoring means
Malfunction monitoring warning signal and the OTDR fault scanning signal of acquisition are uploaded to described server, and described server is according to being somebody's turn to do
Malfunction monitoring warning signal, and by described GIS geography information module true fault geographical location information；Swept by this OTDR fault
Retouch signal and determine fault type information.
Compared to prior art, the method have the advantages that a kind of optical cable fibre core proposed by the invention is real-time
Monitoring system, sets up a set of optical cable real time monitoring system efficient, complete, convenient, by the cooperation of three kinds of monitoring units, it is possible to
Finding in time and forecast Cable's Fault hidden danger, once interruption of optical cables can quickly find event according to the information of optical cable monitoring system
Barrier point, rapid handling failure, it is greatly shortened the break period of optical cable, improves maintenance efficiency and the quality of optical cable, thus improve light
The reliability of fiber communication network.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of optical cable fibre core real-time monitoring system in the present invention.
Fig. 2 is that in one embodiment of the invention, idle fibre core monitoring means divides fiber optical power to monitor connection diagram.
Fig. 3 is that in one embodiment of the invention, idle fibre core monitoring means closes fiber optical power monitoring connection diagram.
Fig. 4 is that in one embodiment of the invention, on-line monitoring unit divides fiber optical power to monitor connection diagram.
Fig. 5 is that in one embodiment of the invention, on-line monitoring unit closes fiber optical power monitoring connection diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
The present invention provides a kind of optical cable fibre core real-time monitoring system, it is provided that one be connected between optical transmission device to be monitored
Optical cable, as shown in Fig. 2 ~ 5, optical cable to be monitored include monitoring device corresponding with this side be connected optical cable and this monitoring optic path
By way of the follow-up all optical cables related to.
This system includes: one is arranged at idle fibre core monitoring means at optical cable to be monitored, one is arranged at optical cable to be monitored
The transmitting warning linkage monitoring means that the on-line monitoring unit at place and is connected with optical transmission equipment network management system；Described
Idle fibre core monitoring means and described on-line monitoring unit are connected to a RTU main control module, and are sent out by malfunction monitoring signal
Deliver to this RTU main control module；Described RTU main control module is connected to a server being arranged at monitoring central station, and by fault
The preset configuration parameter of monitoring signal and this RTU main control module is uploaded to this server；The linkage monitoring of described transmitting warning is single
First and described server is connected, and the malfunction monitoring warning signal of acquisition is uploaded to this server；Described server is according to institute
State preset configuration parameter that RTU main control module uploads or the malfunction monitoring alarm that described transmitting warning linkage monitoring means is uploaded
Signal, and determine, by a GIS geography information module, the geographical position that fault produces；Described server will be according to described idle fine
Core monitoring means and the malfunction monitoring signal determined according to described on-line monitoring unit are supervised with according to the linkage of described transmitting warning
Survey the malfunction monitoring warning signal that determines of unit and carry out Treatment Analysis, generate fault type information, and be supplied to operation maintenance personnel and enter
Row reference, by the faulted-phase judgment obtaining three monitoring means, comparison and analysis, it is possible to increase fault type judges
Accuracy；Described server will be according to described idle fibre core monitoring means, according to described on-line monitoring unit and according to institute
State transmitting warning linkage monitoring means and determine that geographical position carries out Treatment Analysis, generate fault geographical location information, ibid, pass through
To the process in geographical position, comparison and the analysis that obtain, it is possible to increase the accuracy that geographical location information judges, and it is supplied to
Operation maintenance personnel carries out reference.
Further, in the present embodiment, described idle fibre core monitoring means includes that one is non-with optical cable to be monitored respectively
An OTDR fault scanning module, one the oneth OPM Optical Power Monitor Module and one that service signal transmission fibre core is connected are remote
End light source OLS；A described OTDR fault scanning module and a described OPM Optical Power Monitor Module are arranged at homonymy, institute
State remote light source OLS and be arranged at the heteropleural of a described OPM Optical Power Monitor Module；
A described OTDR fault scanning module and a described OPM Optical Power Monitor Module are connected to described RTU master
Control module；Described RTU main control module obtains the OPM optical power signals uploaded by a described OPM Optical Power Monitor Module, and
Judge whether this OPM optical power signals is in first and presets early-warning parameters scope, and corresponding acquisition triggers a described OTDR event
The OTDR fault scanning signal that barrier scan module is uploaded, including light pulse backscatter signals；Described RTU main control module should
The preset configuration parameter of OTDR fault scanning signal and this RTU main control module is uploaded to described server；Described server root
The preset configuration parameter uploaded according to described RTU main control module, including this RTU primary module configuration numbering, topological relation, configuration
The parameters such as geographical location information, and determine fault geographical location information, by described OTDR by described GIS geography information module
Fault scanning signal analysis, obtains distance range, fiber lengths, fiber failure point, optical fiber attenuation, return loss, attenuation quotient
And opticalfiber splicing loss etc., and determine fault type information, fibre core fracture impaired including distance, the fibre core of trouble point, optical fiber
Joint performance deterioration, joints of optical fibre performance degradation etc..
Idle fibre core monitoring utilizes the untapped fibre core in optical cable to be monitored.Fiber cores in identical optical cable is either
No use, its degree affected by environment is roughly the same with the change of physical characteristic, and general generation in lightguide cable link is broken
Split or bending event is consistent on the impact of every optical fiber, therefore use idle core to carry out the acquisition whole piece that test can approximate
The operational factor of the online optical fiber of optical cable.Owing to there is no optical signal on idle core, it is therefore desirable to arrange far at tested optical fiber core offside
End light source OLS, actively injects test optical signal in tested optical fiber core, and is measured optical power intensity by the OPM of this side.OPM
Real-time measuring data is sent to RTU main control module (MCU), MCU luminous power is carried out real-time statistic analysis, and by data
It is uploaded to monitoring central station.Stood in by Surveillance center and GIS GIS-Geographic Information System carries out fault location.
Further, in the present embodiment, a described OTDR fault scanning module and a described OPM luminous power prison
Survey module and be connected to same non-traffic signal transmission fibre core or different non-traffic signal transmission fibre core in described optical cable to be monitored.
As in figure 2 it is shown, monitor for point fiber optical power, OPM optical power monitoring signal and OTDR fault scanning signal are respectively
Utilize two different fibre cores in an optical cable, make that two kinds of signals are the most completely isolated to come.
As it is shown on figure 3, for closing fiber optical power monitoring, use OPM power monitoring and OTDR fault scanning signal to share one
Root fibre core, power monitoring and fault scanning are isolated by the optical signal of different wave length, save a scanning monitoring fibre core.
Further, in the present embodiment, described on-line monitoring unit includes that one passes with service signal in optical cable to be monitored
Defeated fibre core be connected the 2nd OPM Optical Power Monitor Module and be arranged at homonymy with described 2nd OPM Optical Power Monitor Module
The 2nd OTDR fault scanning module；
Described 2nd OPM Optical Power Monitor Module and described 2nd OTDR fault scanning module are connected to described RTU master
Control module；Described RTU main control module obtains the OPM optical power signals uploaded by described 2nd OPM Optical Power Monitor Module, and
Judge whether this OPM optical power signals is in second and presets early-warning parameters scope, and corresponding acquisition triggers described 2nd OTDR event
The OTDR fault scanning signal that barrier scan module is uploaded, including light pulse backscatter signals；Described RTU main control module should
The preset configuration parameter of OTDR fault scanning signal and this RTU main control module is uploaded to described server；Described server root
The preset configuration parameter uploaded according to described RTU main control module, including this RTU primary module configuration numbering, topological relation, configuration
The parameters such as geographical location information, and determine fault geographical location information, by described OTDR by described GIS geography information module
Fault scanning signal analysis, obtains distance range, fiber lengths, fiber failure point, optical fiber attenuation, return loss, attenuation quotient
And opticalfiber splicing loss etc., and determine fault type information, fibre core fracture impaired including distance, the fibre core of trouble point, optical fiber
Joint performance deterioration, joints of optical fibre performance degradation etc..
Further, in the present embodiment, utilize beam splitter that the work light of optical transmission device is separated 3% access OPM, right
Work light is monitored in real time, reflects the transmission characteristic of optical fiber in real time, and finds the change of transmission quality in time.Each light
The thresholding of power monitoring passage can be set, and when monitored optical fiber occurs disconnected fine or bigger decay occurs, makes work light
Power drop to a certain threshold value or unglazed time, send in time alarm, system activates OTDR immediately and surveys fault fibre core
Examination, carries out accurate breakdown judge and location.
Further, in the present embodiment, described 2nd OPM Optical Power Monitor Module be connected to through a beam splitter described in treat
Service signal transmission fibre core in monitoring optical cable；Described 2nd OTDR fault scanning module is connected in described optical cable to be monitored
Non-traffic signal transmission fibre core.As shown in Figure 4, for a point fiber optical power monitoring, OPM optical power monitoring and service signal share one
Root fibre core.OTDR fault scanning signal uses special fiber cores, it is to avoid dry with what service signal shared that fibre core causes
Disturb.
Further, in the present embodiment, described 2nd OPM Optical Power Monitor Module be connected to through a beam splitter described in treat
Service signal transmission fibre core one end in monitoring optical cable, described 2nd OTDR fault scanning module connects through wavelength-division multiplex unit F CM
Entering this service signal transmission fibre core one end, the other end of this service signal transmission fibre core accesses optical transmission device through a wave filter；
This wave filter also be arranged at described optical cable offside service signal to be monitored transmission fibre core on another wavelength-division multiplex unit F CM phase
Even.As it is shown in figure 5, for closing fiber optical power monitoring, OPM optical power monitoring, OTDR fault scanning signal and service signal share
A piece fiber cores.Under this working method, in order to anti-stop signal interferes with each other, OTDR must use ripple different from service signal
Long this monitoring mode of test optical signal use wavelength-division multiplex unit (FCM) realize the loading of OTDR fault scanning signal
And separate, in order to avoid affecting the transmission of service signal.
Further, in the present embodiment, described transmitting warning linkage monitoring means is gathered by alarm interface adapter
In described optical transmission equipment network management system optical transmission device upload thus monitoring barrier warning signal, and described by being connected to
The 3rd OTDR fault scanning module in optical cable to be monitored obtains OTDR fault scanning signal；The linkage monitoring of described transmitting warning
Malfunction monitoring warning signal and the OTDR fault scanning signal of acquisition are uploaded to described server, described server root by unit
According to this malfunction monitoring warning signal, including the configuration information of the optical transmission device that the optical cable that breaks down connects, such as configuration numbering, open up
Flutterring relation etc., also luminous power is too low and signal interruption etc., and the fault provided by described GIS geography information module correspondence
Geographical location information；Fault type information is determined by this OTDR fault scanning signal.
Gathered the fault alarm signal in optical transmission device webmaster by alarm interface adapter, receive optical transmission device
Alarm, fault optical cable is scanned by the OTDR starting coupling at once, it is judged that trouble point distance, and carries out in GIS system
Fault location.Due to the factor of many non-interruption of optical cables of often adulterating in these network management alarms, therefore alarm interface adapter
Support multiple interfaces and agreement, it is possible to translate the network management alarm information of different manufacturers exactly, including gathering, process, transmission etc.
Module, possesses data conversion capabilities.It is also preferred that the left OTDR typically uses idle fibre core detection under transmitting warning linkage pattern.
Being above presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, produced function is made
With during without departing from the scope of technical solution of the present invention, belong to protection scope of the present invention.
Claims (7)
1. an optical cable fibre core real-time monitoring system a, it is provided that optical cable to be monitored being connected between optical transmission device, its feature
It is, including: one it is arranged at idle fibre core monitoring means at optical cable to be monitored, one is arranged at the online prison at optical cable to be monitored
Survey the transmitting warning linkage monitoring means that unit and is connected with optical transmission equipment network management system；Described idle fibre core prison
Survey unit and described on-line monitoring unit is connected to a RTU main control module, and malfunction monitoring signal is sent to this RTU
Main control module；Described RTU main control module is connected to a server being arranged at monitoring central station, and by malfunction monitoring signal with
And the preset configuration parameter of this RTU main control module is uploaded to this server；Described transmitting warning linkage monitoring means and described clothes
Business device connects, and the malfunction monitoring warning signal of acquisition is uploaded to this server；Described server is according to described RTU master control
Preset configuration parameter that module is uploaded or the malfunction monitoring warning signal that described transmitting warning linkage monitoring means is uploaded, and pass through
One GIS geography information module determines the geographical position that fault produces；Described server will be according to described idle fibre core monitoring means
And the malfunction monitoring signal determined according to described on-line monitoring unit determines with according to described transmitting warning linkage monitoring means
Malfunction monitoring warning signal carry out Treatment Analysis, generate fault type information, and be supplied to operation maintenance personnel and carry out reference；Described
Server will be according to described idle fibre core monitoring means, according to described on-line monitoring unit and link according to described transmitting warning
Monitoring means determines that geographical position carries out Treatment Analysis, generates fault geographical location information, and is supplied to operation maintenance personnel and joins
Examine.
A kind of optical cable fibre core real-time monitoring system the most according to claim 1, it is characterised in that described idle fibre core monitoring
Unit include one respectively with in optical cable to be monitored non-traffic signal transmission fibre core be connected an OTDR fault scanning module, one
Oneth OPM Optical Power Monitor Module and a remote light source OLS；A described OTDR fault scanning module and described first
OPM Optical Power Monitor Module is arranged at homonymy, and described remote light source OLS is arranged at a described OPM Optical Power Monitor Module
Heteropleural；
A described OTDR fault scanning module and a described OPM Optical Power Monitor Module are connected to described RTU master
Control module；Described RTU main control module obtains the OPM optical power signals uploaded by a described OPM Optical Power Monitor Module, and
Judge whether this OPM optical power signals is in first and presets early-warning parameters scope, and corresponding acquisition triggers a described OTDR event
The OTDR fault scanning signal that barrier scan module is uploaded；Described RTU main control module is by this OTDR fault scanning signal and is somebody's turn to do
The preset configuration parameter of RTU main control module is uploaded to described server；Described server is uploaded according to described RTU main control module
Preset configuration parameter, and determine fault geographical location information by described GIS geography information module, by described OTDR fault
Scanning signal determines fault type information.
A kind of optical cable fibre core real-time monitoring system the most according to claim 2, it is characterised in that a described OTDR event
Barrier scan module and a described OPM Optical Power Monitor Module are connected to same non-traffic signal in described optical cable to be monitored and pass
Defeated fibre core or different non-traffic signal transmission fibre core.
A kind of optical cable fibre core real-time monitoring system the most according to claim 1, it is characterised in that described on-line monitoring unit
Including one with service signal transmission the 2nd OPM Optical Power Monitor Module that is connected of fibre core in optical cable to be monitored and with described the
Two OPM Optical Power Monitor Module are arranged at the 2nd OTDR fault scanning module of homonymy；
Described 2nd OPM Optical Power Monitor Module and described 2nd OTDR fault scanning module are connected to described RTU master
Control module；Described RTU main control module obtains the OPM optical power signals uploaded by described 2nd OPM Optical Power Monitor Module, and
Judge whether this OPM optical power signals is in second and presets early-warning parameters scope, and corresponding acquisition triggers described 2nd OTDR event
The OTDR fault scanning signal that barrier scan module is uploaded；Described RTU main control module is by this OTDR fault scanning signal and is somebody's turn to do
The preset configuration parameter of RTU main control module is uploaded to described server；Described server is uploaded according to described RTU main control module
Preset configuration parameter, and determine fault geographical location information by described GIS geography information module, by described OTDR fault
Scanning signal determines fault type information.
A kind of optical cable fibre core real-time monitoring system the most according to claim 4, it is characterised in that described 2nd OPM light merit
Rate monitoring modular is service signal transmission fibre core in a beam splitter is connected to described optical cable to be monitored；Described 2nd OTDR fault
The non-traffic signal transmission fibre core that scan module is connected in described optical cable to be monitored.
A kind of optical cable fibre core real-time monitoring system the most according to claim 4, it is characterised in that described 2nd OPM light merit
Rate monitoring modular is service signal transmission fibre core one end, described 2nd OTDR in a beam splitter is connected to described optical cable to be monitored
Fault scanning module accesses this service signal transmission fibre core one end, this service signal transmission fibre core through wavelength-division multiplex unit F CM
The other end through one wave filter access optical transmission device；This wave filter also be arranged at described optical cable offside service signal to be monitored
Another wavelength-division multiplex unit F CM on transmission fibre core is connected.
A kind of optical cable fibre core real-time monitoring system the most according to claim 1, it is characterised in that described transmitting warning links
Monitoring means gathers, by alarm interface adapter, the event that optical transmission device in described optical transmission equipment network management system is uploaded
Monitoring barrier warning signal, and obtain OTDR event by the 3rd OTDR fault scanning module being connected in described optical cable to be monitored
Barrier scanning signal；Described transmitting warning linkage monitoring means is by the malfunction monitoring warning signal obtained and OTDR fault scanning letter
Number being uploaded to described server, described server is according to this malfunction monitoring warning signal, and by described GIS geography information module
Really fault geographical location information；Fault type information is determined by this OTDR fault scanning signal.
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| CN110057542A (en) * | 2019-04-18 | 2019-07-26 | 北京瑞天智讯信息技术有限公司 | A kind of fibre core monitoring method and equipment |
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