CN206195782U - Idle optical fiber monitoring system - Google Patents
Idle optical fiber monitoring system Download PDFInfo
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- CN206195782U CN206195782U CN201621159942.5U CN201621159942U CN206195782U CN 206195782 U CN206195782 U CN 206195782U CN 201621159942 U CN201621159942 U CN 201621159942U CN 206195782 U CN206195782 U CN 206195782U
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- time domain
- domain reflectometer
- fiber
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Abstract
The utility model discloses an idle optical fiber monitoring system, including monitoring center and a plurality of monitoring station, the monitoring center includes the server, crossover concentrator and customer end, long -range automatic monitoring is carried out to the optical cable way in the monitoring station, trail the change of optical fiber transmission loss, convey the server to the operating information of monitoring through the crossover concentrator, the performance control is carried out through the crossover concentrator to the monitoring station to the customer end, the monitoring station includes optical time domain reflectometer and respectively rather than connecting the watchdog circuit, realtime clock circui, EEPROM and power supply, the change condition of luminous power and the position of corresponding point among the optical time domain reflectometer measurement optical fiber link, the watchdog circuit is used for regularly looking over optical time domain reflectometer's the chip condition, realtime clock circui is used for the generation system clock, EEPROM is used for the memory system data. The utility model discloses work efficiency is higher, in time effective assurance reserve optical link on a large scale is available, the security is higher.
Description
Technical field
The utility model is related to fiber-optic monitoring field, more particularly to a kind of idle optic-fiber monitoring system.
Background technology
With the rapid expansion of fiber optic network scale, it will the problem for bringing optical cable data management difficult, batches of optical cable
The network planning, construction information labor management are more chaotic, retrieval is difficult, and in the event of failure, maintenance department searches by spy
It is not difficult.In traditional maintenance technology, safeguard that unit needs to expend more resources, complete the periodic detection of idle optical link
Work, just can ensure that the availability of spare fibre.In passing detection work, usually using optical time domain reflectometer (OTDR)
The standby optical link of network is detected, but the operating efficiency of this method is extremely low, and also workload is big, it is impossible to timely and effectively
Ensure that standby optical link can use on a large scale.Meanwhile, whole maintenance mode all brings very big peace to the network operation of operator
Full hidden danger；Also result in the decline of benefit.
Utility model content
The technical problems to be solved in the utility model is, for the drawbacks described above of prior art, there is provided one kind work effect
Rate is higher, timely and effective can ensure the idle optic-fiber monitoring system that standby optical link is available on a large scale, security is higher.
The utility model solves the technical scheme that its technical problem used：A kind of idle optic-fiber monitoring system is constructed,
Including monitoring center and multiple monitoring stations, the monitoring center includes server, crossover hub and client, the monitoring
Standing carries out long-range automatic monitoring to lightguide cable link, tracks the change of fiber transmission attenuation, by the crossover hub prison
The operation information of survey is sent to the server, and the client is by the crossover hub to the monitoring station progressive
Can monitor, the monitoring station includes optical time domain reflectometer, watchdog circuit, real time clock circuit, EEPROM and power supply, institute
State change situation and the position of corresponding points, the watchdog circuit and the institute of luminous power in optical time domain reflectometer measurement optical fiber link
State optical time domain reflectometer connection, the chip situation for periodically checking the optical time domain reflectometer, the real time clock circuit with
Optical time domain reflectometer connection, for generation system clock, the EEPROM is connected with the optical time domain reflectometer, for depositing
Storage system data, the power supply respectively with the optical time domain reflectometer, watchdog circuit, real time clock circuit and EEPROM
Connect and be powered.
In idle optic-fiber monitoring system described in the utility model, the optical time domain reflectometer is connected including multi-channel optical fibre
Mouth, photoswitch, laser, impulse generator, detector, signal logafier, high-speed AD acquisition processor, FPGA, CPU,
LCD display and button, the photoswitch are connected with the multi-channel optical fibre connector, and the laser connects with the photoswitch
Connect, tested for exporting optical signal, the impulse generator is connected with the laser, the electricity for producing required parameter
Test signal, the FPGA is connected with the impulse generator, for storing pad value, and the detector connects with the photoswitch
Connect, incide luminous power on its face and the change of the luminous power is converted into corresponding electric current for detecting, complete letter
Number opto-electronic conversion, the signal logafier is connected with the detector, is compressed for the dynamic range to signal
Treatment, the high-speed AD acquisition processor be connected with the signal logafier and FPGA respectively, gathered for high-speed a/d and
Treatment measurement error, the CPU respectively with the FPGA and LCD display be connected, collection and treatment for realizing data, and
Result is included on the LCD display, the button is connected with the CPU, for set monitoring station with confidence
Breath.
In idle optic-fiber monitoring system described in the utility model, the optical time domain reflectometer also includes 10M/100M nets
Mouthful, the 10M/100M network interfaces are connected with the CPU, for connecting external network interface.
In idle optic-fiber monitoring system described in the utility model, the optical time domain reflectometer also includes 2Mb/s interfaces,
The 2Mb/s interfaces are connected with the CPU, for connecting outside 2Mb/s communication interfaces.
In idle optic-fiber monitoring system described in the utility model, the optical time domain reflectometer also includes optical fiber interface,
The optical fiber interface is connected with the CPU, for connecting external network optical fiber interface.
In idle optic-fiber monitoring system described in the utility model, the input input 220V exchanges of the power supply
Electricity, output end output+5V ,+12V, -12V and 3.3V voltages.
In idle optic-fiber monitoring system described in the utility model, the multi-channel optical fibre connector is 12 road optical fiber connections
Mouthful.
Implement idle optic-fiber monitoring system of the present utility model, have the advantages that：Due to being provided with monitoring center
With multiple monitoring stations, monitoring station carries out long-range automatic monitoring to lightguide cable link, tracks the change of fiber transmission attenuation, by monitoring
The operation information of monitoring is sent to server by the crossover hub in center, and client is by crossover hub to monitoring
Station carries out performance monitoring, and data are analyzed and processed by monitoring center, accurately and in time by cable system ruuning situation
Attendant is fed back to, attendant is found potential faults, and catastrophic failure in time, and guide fault restoration, can had
The prevention of effect ground and reduction lightguide cable link obstacle, realize multistage monitoring network interconnection；Therefore its operating efficiency it is higher, can be timely and effective
Ensure that standby optical link can use on a large scale, security is higher.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation in the utility model free time optic-fiber monitoring system one embodiment；
Fig. 2 is the structural representation of monitoring station in the embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
In the utility model free time optic-fiber monitoring system embodiment, the structural representation of its idle optic-fiber monitoring system is such as
Shown in Fig. 1.In Fig. 1, the idle optic-fiber monitoring system includes monitoring center 1 and multiple monitoring stations 2, wherein, monitoring center 1 pair is each
Monitoring station 2 is controlled, and monitoring center 1 is the center of collection and processing data, and monitoring center 1 includes server 11, crossover
Hub 12 and client 13.Monitoring station 2 carries out long-range automatic monitoring to lightguide cable link, tracks the change of fiber transmission attenuation,
The operation information of monitoring is sent back by the function of exchange of crossover hub 12 by server 11, while client 13 is in connection
Monitoring station 2 that can be directly to scene after crossover hub 12 carries out performance monitoring.Monitoring station 2 is usually mounted to transmission room
In standard rack.Effectively prevent and reduce lightguide cable link using modularization, distributed multi-stage architecture in monitoring station 2
Obstacle, realizes multistage monitoring network interconnection.Monitoring center 1 monitored by the operation information to each monitoring station 2, can be by optical cable
Circuitry obstacle promptly and accurately be supplied to attendant, moreover it is possible to by monitoring, routine test and call the roll test to needed for the whole network supervise
The lightguide cable link of survey is monitored.
In the present embodiment, client 13 and server 11 are deployed on same main frame, obtain security higher.Number
According to various operation and maintenances all carry out on the server 11, and user in client 13 according to authorizing come using server 11
Data.Reliability management and maintenance of this structure to data simultaneously all brings conveniently, the opening and expandability of system
Can be strengthened.
Fig. 2 is the structural representation of monitoring station in the present embodiment.In Fig. 2, the monitoring station 2 include optical time domain reflectometer 22,
Watchdog circuit 23, real time clock circuit 24, EEPROM25 and power supply 26, wherein, optical time domain reflectometer 22 is used to measure
The change situation of luminous power and the position of corresponding points in optical fiber link, watchdog circuit 23 are connected with optical time domain reflectometer 22, use
In the chip situation for periodically checking optical time domain reflectometer 22, specifically, watchdog circuit 23 is a timer circuit, periodically
The situation of chip internal is checked, Restart Signal is sent to chip once making a mistake, house dog is ordered in the interruption of program
Possess highest priority, prevent CPU229 (the extended meeting afterwards is described) outage in optical time domain reflectometer 22.When in real time
Clock circuit 24 is connected with optical time domain reflectometer 22, and real time clock circuit 24 is exactly in fact to produce the accurate motion as clock in real time
Oscillating circuit, for generation system clock.EEPROM25 is connected with optical time domain reflectometer 22, and EEPROM25 is electric erasable and programmable
Journey read-only storage, it is mainly used in memory system data.
In the present embodiment, power supply 26 respectively with optical time domain reflectometer 22, watchdog circuit 23, real time clock circuit 24
Connected with EEPROM25 and be powered.The input input 220V alternating currents of power supply 26, output end output+5V ,+
12V, -12V and 3.3V voltages.That is, power supply 26 by the 220V alternating currents of input be converted to circuit work+5V ,+
The dc source of 12V, -12V and 3.3V.
In the present embodiment, optical time domain reflectometer 22 includes multi-channel optical fibre connector 221, photoswitch 222, laser 223, arteries and veins
Rush generator 224, detector 225, signal logafier 226, high-speed AD acquisition processor 227, FPGA228, CPU229,
LCD display 230 and button 231, wherein, multi-channel optical fibre connector 221 is 12 road optical fiber connectors, certainly, in the present embodiment
Certain situation under, the quantity of multi-channel optical fibre connector 221 can also be other quantity.Photoswitch 222 is connected with multi-channel optical fibre
Mouth 221 is connected, and photoswitch 222 is a kind of optics with one or more optional transmission ports, and its effect is to light
Optical signal in transmission line or integrated optical circuit carries out physics switching or logical operation, it is possible to reduce the use of active optical component,
12 road optical fibre channels can be tested using a laser 223 and a detector 225.
Laser 223 is connected with photoswitch 222, and the major function of laser 223 is to carry out opto-electronic conversion, exports optical signal
Tested.Impulse generator 224 is connected with laser 223, and impulse generator 224 is primarily used to produce signal, specifically
The electric test signal of parameter needed for producing.Due to pulse duration effects testing length error, the idle optic-fiber monitoring system is used
The FPGA228 of digital circuit, the regulation step-length of pulse width time reaches 1ns, it is ensured that the error in length of measurement optical fiber.
In the present embodiment, detector 225 is connected with photoswitch 222, and the PIN pipes of detector 225 can be detected and incide it
Luminous power on face, and the change of this luminous power is converted into corresponding electric current, complete the opto-electronic conversion of signal.Detector
225 major function is the reflected signal for measuring light, very faint in light input signal, when minimum only has -60dBm, noise
Influence is very sensitive, and the idle optic-fiber monitoring system is by this requirement of the strict control realization of current loop.
In the present embodiment, signal logafier 226 is connected with detector 225, is carried out for the dynamic range to signal
Compression is processed, and signal logafier 226 is exactly in fact amplitude output signal and input signal amplitude is in logarithmic function relation
Amplifying circuit.Its effect is to be compressed treatment to the dynamic range of signal, makes to enter the signal of high-speed AD acquisition processor 227
It is compressed in the dynamic range of 30dB by maximum 60dB, signal logafier 226 is small to the compression ratio of small-signal, to big signal
Compression ratio it is big, can take into account very much the change of measurement distance.High-speed AD acquisition processor 227 respectively with signal logafier
226 and FPGA228 is connected, gathered for high-speed a/d and treatment measurement error.
In the present embodiment, FPGA228 is connected with impulse generator 224, and the main work of FPGA22 is to store pad value
Come, be sent to CPU229 treatment.The idle optic-fiber monitoring system additionally uses repeatedly measurement average treatment, random due to noise
Property, each memory cell add up and is averaging to reading result, can reduce the influence of noise, and actual measured results are aobvious
Show, can averagely improve signal to noise ratio 10dB or so 256 times.In the present embodiment, CPU229 respectively with FPGA228 and LCD display
230 connections, collection and treatment for realizing data, and result is included on LCD display 230, while being deposited
Store up the flash ROM in terminal device and be transferred on server 11.Button 231 is connected with CPU229, for setting monitoring station 2
Configuration information.In the present embodiment, LCD display 230 mainly shows the system configuration of monitoring station 2 letter related to test optical fiber
Breath and result.
In the present embodiment, the optical time domain reflectometer 22 also include 10M/100M network interfaces 232,10M/100M network interfaces 232 with
CPU229 connection, for connecting external network interface.The optical time domain reflectometer 22 also includes 2Mb/s interfaces 233,2Mb/s interfaces
233 be connected with CPU229, for connecting outside 2Mb/s communication interfaces.The optical time domain reflectometer also includes optical fiber interface 234, light
Fine interface 234 is connected with CPU229, for connecting external network optical fiber interface.
In the measurement of optical time domain reflectometer 22, optical time domain reflectometer 22 sends a laser testing pulse first, then surveys
The size that each point from optical fiber returns to the laser power of (including Fresnel reflection and Rayleigh scattering) is measured, this process is repeated
OK, the data that then will be obtained carry out multiple averaging to reduce the influence of noise, finally show these data in graph form
Show to come, this curve just describes this section of characteristic of optical fiber.
In a word, in the present embodiment, monitoring station 2 carries out long-range automatic monitoring to lightguide cable link, tracks fiber transmission attenuation
Change, the operation information of monitoring is sent to by the crossover hub 12 in monitoring center 1 by server, client 13 is led to
Cross crossover hub 12 carries out performance monitoring to monitoring station 2, and data are analyzed and processed by monitoring center 1, in time,
Cable system ruuning situation is fed back into attendant exactly, attendant is found potential faults, and burst in time
Failure, and guides fault restoration, can effectively prevent and reduce lightguide cable link obstacle, realizes multistage monitoring network interconnection；Therefore
Its operating efficiency is higher, timely and effective can ensure that standby optical link can use on a large scale, security is higher.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of idle optic-fiber monitoring system, it is characterised in that including monitoring center and multiple monitoring stations, monitoring center's bag
Server, crossover hub and client are included, the monitoring station carries out long-range automatic monitoring to lightguide cable link, and tracking optical fiber is passed
The operation information of monitoring, the server, the client are sent to by the crossover hub by the change of defeated loss
Performance monitoring is carried out to the monitoring station by the crossover hub, the monitoring station includes optical time domain reflectometer, guards the gate
Dog circuit, real time clock circuit, EEPROM and power supply, luminous power changes in the optical time domain reflectometer measurement optical fiber link
The position of change situation and corresponding points, the watchdog circuit is connected with the optical time domain reflectometer, for periodically checking the light
The chip situation of time-domain reflectomer, the real time clock circuit is connected with the optical time domain reflectometer, for generation system clock,
The EEPROM is connected with the optical time domain reflectometer, for memory system data, the power supply respectively with it is described smooth when
Domain reflectometer, watchdog circuit, real time clock circuit and EEPROM are connected and are powered.
2. idle optic-fiber monitoring system according to claim 1, it is characterised in that the optical time domain reflectometer includes multichannel
Optical fiber connector, photoswitch, laser, impulse generator, detector, signal logafier, high-speed AD acquisition processor,
FPGA, CPU, LCD display and button, the photoswitch are connected with the multi-channel optical fibre connector, the laser with it is described
Photoswitch connection, tested for exporting optical signal, the impulse generator be connected with the laser, required for producing
The electric test signal of parameter, the FPGA is connected with the impulse generator, for storing pad value, the detector with it is described
Photoswitch connection, incide luminous power on its face and the change of the luminous power is converted into corresponding electricity for detecting
Stream, completes the opto-electronic conversion of signal, and the signal logafier is connected with the detector, for the dynamic range to signal
It is compressed treatment, the high-speed AD acquisition processor is connected with the signal logafier and FPGA respectively, at a high speed
A/D gather and treatment measurement error, the CPU respectively with the FPGA and LCD display be connected, the collection for realizing data
And treatment, and result being included on the LCD display, the button is connected with the CPU, for setting monitoring station
Configuration information.
3. idle optic-fiber monitoring system according to claim 2, it is characterised in that the optical time domain reflectometer also includes
10M/100M network interfaces, the 10M/100M network interfaces are connected with the CPU, for connecting external network interface.
4. the idle optic-fiber monitoring system according to Claims 2 or 3, it is characterised in that the optical time domain reflectometer is also wrapped
Include 2Mb/s interfaces, the 2Mb/s interfaces are connected with the CPU, for connecting outside 2Mb/s communication interfaces.
5. idle optic-fiber monitoring system according to claim 4, it is characterised in that the optical time domain reflectometer also includes light
Fine interface, the optical fiber interface is connected with the CPU, for connecting external network optical fiber interface.
6. idle optic-fiber monitoring system according to claim 1, it is characterised in that the input input of the power supply
220V alternating currents, output end output+5V ,+12V, -12V and 3.3V voltages.
7. idle optic-fiber monitoring system according to claim 2, it is characterised in that the multi-channel optical fibre connector is 12 tunnels
Optical fiber connector.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159942.5U CN206195782U (en) | 2016-11-01 | 2016-11-01 | Idle optical fiber monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159942.5U CN206195782U (en) | 2016-11-01 | 2016-11-01 | Idle optical fiber monitoring system |
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| CN206195782U true CN206195782U (en) | 2017-05-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039443A (en) * | 2018-09-04 | 2018-12-18 | 广东电网有限责任公司 | A kind of spare fibre detection method and device |
| CN109687903A (en) * | 2018-12-28 | 2019-04-26 | 东南大学 | Optical fiber macrobending on-line monitoring system and method |
| CN110138445A (en) * | 2019-05-24 | 2019-08-16 | 广东电网有限责任公司 | The regular inspection test method of vacant optical fiber |
| WO2019242268A1 (en) * | 2018-06-22 | 2019-12-26 | 武汉光迅科技股份有限公司 | Method of site selection for monitoring station, and device for site selection for monitoring station |
| CN111817777A (en) * | 2020-07-23 | 2020-10-23 | 广州优加智联技术有限公司 | Idle optical fiber resource on-line monitoring system |
-
2016
- 2016-11-01 CN CN201621159942.5U patent/CN206195782U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019242268A1 (en) * | 2018-06-22 | 2019-12-26 | 武汉光迅科技股份有限公司 | Method of site selection for monitoring station, and device for site selection for monitoring station |
| US11159232B2 (en) | 2018-06-22 | 2021-10-26 | Accelink Technologies Co., Ltd. | Method of site selection for monitoring station, and device for site selection for monitoring station |
| CN109039443A (en) * | 2018-09-04 | 2018-12-18 | 广东电网有限责任公司 | A kind of spare fibre detection method and device |
| CN109687903A (en) * | 2018-12-28 | 2019-04-26 | 东南大学 | Optical fiber macrobending on-line monitoring system and method |
| CN110138445A (en) * | 2019-05-24 | 2019-08-16 | 广东电网有限责任公司 | The regular inspection test method of vacant optical fiber |
| CN111817777A (en) * | 2020-07-23 | 2020-10-23 | 广州优加智联技术有限公司 | Idle optical fiber resource on-line monitoring system |
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