CN110429977A - A kind of optical cable fibre core real-time monitoring system and method based on light source photodetector array - Google Patents
A kind of optical cable fibre core real-time monitoring system and method based on light source photodetector array Download PDFInfo
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- CN110429977A CN110429977A CN201811130725.7A CN201811130725A CN110429977A CN 110429977 A CN110429977 A CN 110429977A CN 201811130725 A CN201811130725 A CN 201811130725A CN 110429977 A CN110429977 A CN 110429977A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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Abstract
The present invention provides a kind of optical cable fibre core real-time monitoring system and method based on light source photodetector array, O&M is monitored for optical cable fibre core, the present invention, which is used, is arranged array of source in a detection node of the operation hollow remaining fibre core of optical cable, photodetector array is set in the opposite end detection node of vacant fibre core, the realtime power of the vacant fibre core of real-time monitoring cable link is lost, link evaluation result is provided after analyzing again monitoring data, and corresponding alert, to realize the monitoring of the operating status of optical link, instead of measurement method artificial after link failure.The present invention is support with high performance network communication processing system, using monitoring software as core, is provided complete, advanced Centralizing inspection and integrated management function for the cable link of powerline network based on the monitoring station of distal end.
Description
Technical field
The present invention is a kind of optical cable fibre core real-time monitoring system based on light source photodetector array, for communications optical cable
The information such as optical fiber degradation, vacant fibre core quality, are monitored using light source photodetector array, construct sleeve optic cable fibre
Core real-time monitoring system.The present invention relates in optical cable monitoring system field, especially power communication to the prison of optical cable fibre core quality
Survey and fibre core information management etc..
Background technique
With the development of communication technology, fiber optic communication has become the major technique selection of power communication, and wherein optical fiber is logical
The infrastructure of letter is optical cable.In recent years, the contingencies such as the destruction of the external force such as municipal construction and fire, lead to Cable's Fault risk
It is continuously increased, while optical communication network scale constantly expands, transmission rate is continuously improved, and the requirement to the O&M level of optical cable has
Tightened up requirement.Thereby it is ensured that power optical fiber communication system security stable operation, top priority are to ensure that electric power light
The safe operation of cable.Currently, the operation and maintenance of electric power optical cable, as electric power optical cable Daily Round Check, spare fibre core quality test,
Optical cable data collection arrangement etc. relies primarily on artificial means, has the disadvantage in that
I, maintenance troop is huge, expends a large amount of manpower and material resources；
II, test period is too long, and optical cable data real-time is poor；
III, data management is complicated, and there is artificial and process factor influences；
It is passive that IV, resource are controlled, it is difficult to realize the prevention in advance of failure.
V, human meter's operation the problems such as that there are measurement data is imperfect, and instrument is with high costs.
The application of smart grid proposes requirements at the higher level, electric power communication optical cable O&M water to power telecom network operational reliability
Flat to be badly in need of improving, the online O&M intelligence of optical cable becomes the inexorable trend of electric power optical cable O&M.
In order to avoid farthest guaranteeing the stability of operation, the present invention to the influence in fortune transmission network service channel
The optical cable fibre core real-time monitoring system is monitored idle fibre core by dividing fiber optical power free time fibre core monitoring mode,
It can may be impacted in this way in fortune business wave transmission to avoid test pulse wave when closing the monitoring of fiber optical power fibre core.The present invention
The optical cable fibre core real-time monitoring system is visited when carrying out real-time monitoring to optical cable fibre core operating index using light source light
Device array is surveyed, which can monitor more fibre cores simultaneously, can utmostly acquire the real-time running state of optical cable fibre core.Work as monitoring
When super threshold value is lost in the fibre core arrived, instant alert makes cable link realize complete Centralizing inspection and integrated pipe
Reason realizes the intelligence of cable link monitoring work, maintaining cables manpower and material resources cost is effectively reduced, hence it is evident that improves optical cable maintenance
The efficiency of management.
Summary of the invention
A kind of optical cable fibre core real-time monitoring system based on light source photodetector array that the present invention refers to, technical problem
Mainly solve by the following technical programs:
A kind of optical cable fibre core real-time monitoring system based on light source photodetector array, it is characterised in that: including
Array of source: vacant fibre core one end in cable link is set, is obtained for extracting detection light, and according to detection light
Data are exported after taking light source output power, and to provide the light signal of optical cable core detection unit；
Photodetector array: the vacant fibre core other end in cable link is set, after obtaining light source input power
Data are exported；
Monitoring center: the data that array of source and photodetector array are transmitted by data transmission network, data are received
It is handled, calculates the operating status of target fibre core, real-time monitoring cable link.
A kind of above-mentioned optical cable fibre core real-time monitoring system based on light source photodetector array, the array of source include
Connected distributed feedback laser, multi-pass light splitter, several Air conduct measurement light extraction means and light source output power is visited
Survey array；Each output end of multi-pass light splitter is corresponding with more spare fibre cores to be connected, every spare fibre core and multichannel point
Extracted device extracts detection light one by one between light device, and is delivered to light source output power detection array, then is transmitted to data biography
Defeated network simultaneously uploads the output power data of array of source to monitoring center.
A kind of above-mentioned optical cable fibre core real-time monitoring system based on light source photodetector array, the photodetector array
Including several optical detectors, every spare fibre core is respectively provided with an optical detector, and the output of all optical detectors is connected to input
Power detection disk, input power detection plate are connected with data transmission network and upload the input power data of photodetector array extremely
Monitoring center.
A kind of above-mentioned optical cable fibre core real-time monitoring system based on light source photodetector array, monitoring center monitoring service
Device analyzes first group of vacant fibre core attenuation power of the fibre core sequence of monitoring optical cable, i.e., the monitoring channel source array is defeated
The input power data of light source output power data and photodetector array output out are analyzed and are handled, and vacant fibre is obtained
Obtained attenuation power is compared by the attenuation power of core with preset fibre core attenuation power, when difference is more than to limit
Range when, by analysis detection optical signal Check System faults itself, then prompt fault message if faults itself, it is on the contrary then
The fibre core all to the optical cable monitored carries out fibre core attenuation power analysis, and summarizes all exception informations, issues fibre core attenuation
Transfinite alarm signal.
A kind of optical cable fibre core method of real-time based on light source photodetector array, it is characterised in that:
Array of source assigns the unique of corresponding each channel to the light signal of each channel and its light source power numerical value of output
It is position encoded, and monitoring central server is uploaded with data-signal；
The optical detector of each channel will also imparting pair when output power numerical value input power detection plate in photodetector array
It answers the unique positions of each channel to encode and uploads monitoring central server with data-signal；
Monitoring central server is after the data information for receiving array of source, photodetector array, according to the letter of data
Unique positions coding in road carries out corresponding extraction, realizes that the light signal information of vacant fibre core and photodetector signal information one are a pair of
It answers.
A kind of above-mentioned optical cable fibre core method of real-time based on light source photodetector array, is encoded to 6, front two
For optical cable number, latter four channel numbers where fibre core.
A kind of above-mentioned optical cable fibre core method of real-time based on light source photodetector array, specifically includes
Step 1, the monitoring channel fibre core attenuation power being arranged in M channel one by one, and initial assignment.
First group of vacant fibre core attenuation power that step 2, monitoring center monitoring server sort to the fibre core of monitoring optical cable
It is analyzed, i.e. the input work of the light source output power data of monitoring channel source array output and photodetector array output
Rate data are analyzed and are handled, and obtain the real-time monitoring attenuation of vacant fibre core in a sampling period by formula (1), (2)
Power.
Pi=Pi_source1% × 99%-P of ÷i_out (1)
In formula (1), (2), PiFor in the sampling period i-th sample monitoring channel fibre core link attenuation power,
Pi_sourceFor the light source power for the monitoring channel exported by light source output power array that i-th in the sampling period samples, Pi_out
For the light detecting signal power of i-th sampling monitoring channel in the sampling period, n times sampling is completed in each sampling period,For
The fibre core link attenuation power of the average monitoring channel of n times in one sampling period.
The real-time attenuation power of step 3, the fibre core for comparing the monitoring channel and fibre core attenuation setting value, when difference is not above
When set 3dB threshold value, then fibre core normal operation record monitoring channel fibre core situation is normal.Otherwise if being more than threshold values first
It extracts the light signal numerical value in channel corresponding to the fibre core, and is carried out pair with the light signal numerical value in the previous period channel
Than；The output signal numerical value of distributed feedback laser is extracted, and is compared with the output signal numerical value in previous period, if
This two groups of numerical value changes are less than distributed feedback laser power swing range, after removal system hardware faults itself,
Recording the monitoring channel fibre core attenuation transfinites warning；Conversely, if any one group of this two groups of numerical value changes is swashed more than distributed Feedback
Light device power swing range then reports the array of source channel abnormal to alert.
Step 4 measures other all channel fibre core attenuations one by one, and is repeatedly performed above-mentioned treatment process, concentrates and generates institute
There is the fibre core attenuation situation in channel to report interruption of optical cables to alert after removal system own hardware failure.
The present invention is support with high performance network communication processing system, with monitoring software based on the monitoring station of distal end
For core, complete, advanced Centralizing inspection and integrated management function, specific manifestation are provided for the cable link of powerline network
: 1) lightguide cable link degradation is monitored, finds optical cable hidden danger in time, reduces Cable's Fault incidence；2) optical cable is realized
Information inquiry, report and processing electronization, provide real-time reference data for Cable's Fault repairing, shorten Cable's Fault and repair and goes through
When；3) the spare fibre core situation of real time reaction switches for cable link failure or fiber channel and provides alternate channel in time, ensures industry
Business operates normally；4) cable link monitoring work is intelligent, uses manpower and material resources sparingly, and reduces maintaining cables cost, improves optical cable dimension
Protect the efficiency of management；
Detailed description of the invention
Fig. 1 is the topology diagram of optical cable fibre core real-time monitoring system.
Fig. 2, which is monitoring center monitoring server, transfinites the flow chart of processing to fibre core threshold values.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail.
(1) system general frame
Optical cable fibre core real-time monitoring system based on light source photodetector array, general frame are divided into three layers, specifically such as
Under:
The bottom is basic function facility, as shown in Fig. 1, mainly by array of source, photodetector array, cable link
In vacant fibre core three parts constitute, realize cable link attenuation real-time measurement.The number of array of source and photodetector array
Monitoring center is transmitted to according to the data transmission network by optic_fiber intelligent skin.
Middle layer is monitoring server layer, including geography information figure, SQL database, Background control program.Monitoring server
The synchronous and monitoring that completion link attenuation obtains analysis, alert analysis, data management, message distribution, resource and alarm in real time is set
Standby management.
Top layer is client, and user is connected to fiber optic cable monitor server by client, completes interface performance and realizes
The operations function of system.
Optical cable fibre core real-time monitoring system, by provided on background server standardized upper layer network interface realize with
Other network management system database intercommunications, reach resource-sharing.
(2) workflow
As shown in Figure 1, optical cable fibre core real-time monitoring system is that basic monitoring is single with the cable link between two communication nodes
Member configures a set of optical link monitoring device.A communication node places array of source wherein, provides light for the detection of vacant fibre core
Signal, while signal luminous power is uploaded to by monitoring server by data communication network；Light is placed in another node to visit
Device array is surveyed, for detecting the optical signal power exported from vacant fibre core, and the signal that will test receives optical power and is uploaded to prison
Survey server.Monitoring server handles the various information received.It is calculate by the following formula out the monitored vacant fibre of link
The real-time loss of core, specific as follows:
Pi=Pi_source1% × 99%-P of ÷i_out (1)
In formula (1), (2), PiFor in the sampling period i-th sample monitoring channel fibre core link attenuation power,
Pi_sourceFor the light source power for the monitoring channel exported by light source output power array that i-th in the sampling period samples, Pi_out
For the light detecting signal power of i-th sampling monitoring channel in the sampling period, n times sampling is completed in each sampling period,For
The fibre core link attenuation power of the average monitoring channel of n times in one sampling period.
Monitoring central server, willAs monitoring channel fibre core attenuation power, and by the variation of real-time attenuation come
Reflect monitored cable link state, link evaluation is provided as a result, and corresponding alert, to realize cable link
Real-time monitoring.Client realizes monitoring data inquiry, artificial detection, the operating function of report generation.
(3) design of array of source
Array of source is by distributed feedback laser, multi-pass light splitter, Air conduct measurement light extraction means, light source output function
Rate detection array is constituted.Distributed feedback laser issues continuous light signal, into multi-pass light splitter, while its own
Luminous power detection signal will send to light source output power detection array, to record the numerical value of its luminous power.Multichannel point
Light device is by light signal point to different channels, and in each channel, Air conduct measurement light extraction means are extracted 1% detection light, sent
To light source output power detection array, to reflect the light source power numerical value of each channel outlet.The light of each channel remaining 99%
Enter vacant fibre core through Air conduct measurement light extraction means, the light signal as optical cable fibre core detection unit.Light source output power
The various types of signal received is converted into data-signal by detection array, is assigned corresponding coding, is uploaded by data communication network
To monitoring data server.
(4) design of photodetector array
Photodetector array is made of one group of optical detector and input power detection plate.Each optical detector accesses one
Vacant fibre core receives its optical signal after fibre core sending allowance, and is sent to its numerical information after carrying out photoelectric conversion
Input power detection plate.Received numerical information is converted into data-signal by input power detection plate, and assigns corresponding coding,
Monitoring data server is uploaded to by data communication network.
(5) data processing method
A) attenuation of vacant fibre core calculates
After monitoring server receives array of source, the data information that photodetector array issues, reflect same fibre core
The data of light signal and photodetector signal are extracted according to coding, to guarantee the light signal letter at same vacant fibre core both ends
Breath is corresponded with light detecting signal information.With this condition, photodetector signal numerical value is subtracted with light signal numerical value, as
The link attenuation power of the vacant fibre core.Further to eliminate systematic error, in data processing, fibre core attenuation power uses one
Multiple repairing weld is averaged in the section period.
B) fibre core threshold value transfinites processing
In the treatment process that monitoring center, monitoring server transfinite for fibre core threshold value, as shown in Fig. 2.Monitoring service
Each group of m fibre core attenuation setting value is arranged according to the statistical value of optical cable fibre core attenuation in device one by one.Measure the in optical cable fibre core
Attenuation power in one sampling period of one group of vacant fibre core simultaneously carries out mean value computation processing, and the fibre core for obtaining the monitoring channel is real
When attenuation power.The real-time attenuation power of fibre core and fibre core attenuation setting value for comparing the monitoring channel, when difference is not above institute
When the threshold value 3dB of setting, then fibre core normal operation record monitoring channel fibre core situation is normal.Otherwise it is mentioned first if being more than threshold values
The light signal numerical value in channel corresponding to the fibre core is taken, and is compared with the light signal numerical value in the previous period channel；
Second step extracts the output signal numerical value of distributed feedback laser, and carries out pair with the output signal numerical value in previous period
Than；After this two groups of numerical value changes are less than distributed feedback laser power swing range, lead in next step to corresponding to fibre core
The optical detector and input power detection plate in road carry out self-test, otherwise if beyond distributed feedback laser power swing range
Report the array of source channel abnormal.After removal system hardware faults itself, recording the monitoring channel fibre core attenuation transfinites police
It accuses, and measures other all channel fibre core attenuations of the group one by one and be repeatedly performed above-mentioned treatment process, concentrate and generate all channels
Fibre core attenuation situation, report interruption of optical cables to alert.
Specific example described herein only illustrates that spirit of the invention.The technical field of the invention
Technical staff various modifications or additions can be done to described specific example or be substituted in a similar manner, but
Without departing from the spirit of the invention or going beyond the scope defined by the appended claims.
Claims (7)
1. a kind of optical cable fibre core real-time monitoring system based on light source photodetector array, it is characterised in that: including
Array of source: being arranged in vacant fibre core one end in cable link, obtains light for extracting detection light, and according to detection light
Data are exported after the output power of source, and to provide the light signal of optical cable core detection unit；
Photodetector array: being arranged in the vacant fibre core other end in cable link, after obtaining light source input power
Data are exported；
Monitoring center: receiving the data that array of source and photodetector array are transmitted by data transmission network, and data carry out
Processing calculates the operating status of target fibre core, real-time monitoring cable link.
2. a kind of optical cable fibre core real-time monitoring system based on light source photodetector array according to claim 1, special
Sign is: the array of source includes connected distributed feedback laser, multi-pass light splitter, several Air conduct measurement light extractions
Device and light source output power detection array；Each output end of multi-pass light splitter is corresponding with more spare fibre cores to be connected,
Extracted device extracts detection light one by one between every spare fibre core and multi-pass light splitter, and is delivered to light source output power spy
Array is surveyed, then is transmitted to data transmission network and uploads the output power data of array of source to monitoring center.
3. a kind of optical cable fibre core real-time monitoring system based on light source photodetector array according to claim 1, special
Sign is: the photodetector array includes several optical detectors, and every spare fibre core is respectively provided with an optical detector, Suo Youguang
The output of detector is connected to input power detection plate, and input power detection plate is connected with data transmission network and uploads optical detection
The input power data of device array are to monitoring center.
4. a kind of optical cable fibre core real-time monitoring system based on light source photodetector array according to claim 1, special
Sign is: monitoring center monitoring server divides first group of vacant fibre core attenuation power of the fibre core sequence of monitoring optical cable
The light source output power data of analysis, i.e. the monitoring channel source array output and the input power data of photodetector array output
It is analyzed and is handled, obtain the attenuation power of vacant fibre core, by obtained attenuation power and preset fibre core attenuation function
Rate is compared, when difference is more than the range limited, by analysis detection optical signal Check System faults itself, if itself
Failure then prompts fault message, fibre core progress fibre core attenuation power analysis on the contrary then all to the optical cable monitored, and summarizes
All exception informations, issuing fibre core attenuation transfinites alarm signal.
5. a kind of optical cable fibre core method of real-time based on light source photodetector array, it is characterised in that:
Array of source assigns the unique positions of corresponding each channel to the light signal of each channel and its light source power numerical value of output
Coding, and monitoring central server is uploaded with data-signal；
The optical detector of each channel will also assign corresponding each when output power numerical value input power detection plate in photodetector array
The unique positions of channel encode and upload monitoring central server with data-signal；
Monitoring central server after the data information for receiving array of source, photodetector array, according to data channel only
One it is position encoded carry out corresponding extraction, realize that the light signal information of vacant fibre core and photodetector signal information correspond.
6. a kind of optical cable fibre core method of real-time based on light source photodetector array according to claim 5, special
Sign is: being encoded to 6, front two is optical cable number, latter four channel numbers where fibre core.
7. a kind of optical cable fibre core method of real-time based on light source photodetector array according to claim 5, special
Sign is: specifically including
Step 1, the monitoring channel fibre core attenuation power being arranged in M channel one by one, and initial assignment；
Step 2, monitoring center monitoring server carry out first group of vacant fibre core attenuation power of the fibre core sequence of monitoring optical cable
The light source output power data of analysis, i.e. the monitoring channel source array output and the input power number of photodetector array output
According to being analyzed and being handled, the real-time monitoring attenuation power of vacant fibre core in a sampling period is obtained by formula (1), (2)；
Pi=Pi_source1% × 99%-P of ÷i_out (1)
In formula (1), (2), PiFor the fibre core link attenuation power for the monitoring channel that i-th in the sampling period samples, Pi_sourceFor
The light source power for the monitoring channel exported by light source output power array that i-th samples in sampling period, Pi_outFor sampling week
The light detecting signal power of i-th sampling monitoring channel in phase completes n times sampling in each sampling period,It is sampled for one
The fibre core link attenuation power of the average monitoring channel of n times in period；
The real-time attenuation power of step 3, the fibre core for comparing the monitoring channel and fibre core attenuation setting value, when difference be not above it is set
When the 3dB threshold value set, then fibre core normal operation record monitoring channel fibre core situation is normal；Otherwise it is extracted first if being more than threshold values
The light signal numerical value in channel corresponding to the fibre core, and compared with the light signal numerical value in the previous period channel；It mentions
Take the output signal numerical value of distributed feedback laser, and compared with the output signal numerical value in previous period, if this two
Group numerical value change is less than distributed feedback laser power swing range, after removal system hardware faults itself, record
The monitoring channel fibre core attenuation transfinites warning；Conversely, if any one group of this two groups of numerical value changes is more than distributed feedback laser
Power swing range then reports the array of source channel abnormal to alert；
Step 4 measures other all channel fibre core attenuations one by one, and is repeatedly performed above-mentioned treatment process, concentrates and generates all lead to
The fibre core attenuation situation in road reports interruption of optical cables to alert after removal system own hardware failure.
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| CN111817778A (en) * | 2020-06-09 | 2020-10-23 | 云南电网有限责任公司曲靖供电局 | Optical cable remote monitoring device and method at tail end of power optical transmission network |
| CN115426036A (en) * | 2022-07-15 | 2022-12-02 | 卓信通信股份有限公司 | Intelligent optical fiber link disposal system and method |
| CN117097397A (en) * | 2023-08-22 | 2023-11-21 | 北京瑞祺皓迪技术股份有限公司 | Service fault recovery method and device based on optical fiber link loss test |
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| CN111817778A (en) * | 2020-06-09 | 2020-10-23 | 云南电网有限责任公司曲靖供电局 | Optical cable remote monitoring device and method at tail end of power optical transmission network |
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