CN108155935A - A kind of cable network failure detector - Google Patents
A kind of cable network failure detector Download PDFInfo
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- CN108155935A CN108155935A CN201711477705.2A CN201711477705A CN108155935A CN 108155935 A CN108155935 A CN 108155935A CN 201711477705 A CN201711477705 A CN 201711477705A CN 108155935 A CN108155935 A CN 108155935A
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- failure detector
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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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- 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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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a kind of cable network failure detector, including：Integral type multichannel UFIU UMSC Fiber Interface Unit, Multiplexing Unit, light coherent field reflection detection unit, light open the light unit and intelligent management unit；Integral type multichannel UFIU UMSC Fiber Interface Unit, for passing through Multiplexing Unit by optical transmitter and receiver access optical cable net；Multiplexing Unit, for optical transmitter and receiver to be accessed integral type multichannel UFIU UMSC Fiber Interface Unit；Light coherent field reflects detection unit, and signal is detected for exporting, and carries out fault location according to the corresponding feedback signal of detection signal；Light opens the light unit, for carrying out the gating of tested optical channel under the control of intelligent management unit；Intelligent management unit for optical switch element to be controlled to carry out the gating of tested optical channel, is established and manages the transmission performance archives of each optical fiber connector and optical cable in cable network, provide fault pre-alarming and location information.Solve the disadvantage that positioning accuracy existing for existing cable network failure detector is low, has limitation by the present invention.
Description
Technical field
The invention belongs to detecting instrument technical field more particularly to a kind of cable network failure detectors.
Background technology
Under severe application environment (such as：Thump, repeatedly sustained vibration, plug and temperature shock etc.), in cable network
Optical fiber connector easily break down, mainly include：Vibration causes optical fiber surface to wear, and transmission loss is caused to increase；
In addition, plug is operated or worked under vibration for a long time repeatedly, optical fiber connector fine alignment mechanism is worn, and is caused
Its alignment precision declines, and intermittent disconnection of signal occurs under thump；In addition, under big temperature difference environment, the cataclysm of temperature will lead to light
Optical fiber undercut, optical cable in fiber connector bend, and eventually lead to transmission loss increase.
Cable network failure detector can monitor the transporting of each optical fiber connector and optical cable in multi channel fiber cable net
Can, transmission performance database is established, by the variation of periodic analysis cable network transmission performance, carries out fault pre-alarming in time, is ensured
The highly reliable operation of cable network.In addition, when optical fiber connector and optical cable are damaged, quick and precisely fault point.Existing skill
Art has the following disadvantages：
(1) it is the cable network fault location within 50 meters to be difficult to length.
(2) it can not judge two trouble points of the interval less than 10 meters.
(3) positioning accuracy is low, more than 5 meters.
(4) using discrete interfaces, multi channel fiber cable net can not be conveniently realized and quickly detected.
Invention content
The technology of the present invention solves the problems, such as：A kind of cable network failure detector is overcome the deficiencies of the prior art and provide, with
Solve the disadvantage that positioning accuracy existing for existing cable network failure detector is low, has limitation.
In order to solve the above-mentioned technical problem, the invention discloses a kind of cable network failure detector, including：Integral type is more
Road UFIU UMSC Fiber Interface Unit, Multiplexing Unit, light coherent field reflection detection unit, light open the light unit and intelligent management unit；
Integral type multichannel UFIU UMSC Fiber Interface Unit, for passing through Multiplexing Unit by optical transmitter and receiver access optical cable net；
Multiplexing Unit, for optical transmitter and receiver to be accessed integral type multichannel UFIU UMSC Fiber Interface Unit；
Light coherent field reflects detection unit, and signal is detected for exporting, and according to the corresponding feedback signal of detection signal into
Row fault location；
Light opens the light unit, for carrying out the gating of tested optical channel under the control of intelligent management unit；
Intelligent management unit for optical switch element to be controlled to carry out the gating of tested optical channel, is established and manages cable network
In the transmission performance archives of each optical fiber connector and optical cable, fault pre-alarming and location information are provided.
In above-mentioned cable network failure detector, further include；
Power supply unit, for providing power supply for the cable network failure detector.
In above-mentioned cable network failure detector,
The multipath light signal and cable network of optical transmitter and receiver output pass through integral type multichannel UFIU UMSC Fiber Interface Unit access optical cable net failure
The Multiplexing Unit of detection device.
In above-mentioned cable network failure detector,
Light coherent field reflects detection unit, for opening the light the tested of one-cell switching cable network in intelligent management unit control light
After optical channel, output detection signal will detect tested optical channel of the signal by Multiplexing Unit injection cable network；It is and real
When monitoring feedback signal light variation, obtain failure detection result；Wherein, filter reflection of the signal by cable network end is detected
Afterwards, feedback signal is returned to along cable network.
In above-mentioned cable network failure detector, intelligent management unit, for defeated to light coherent field reflection detection unit
The failure detection result gone out is stored and is analyzed, and forms report；And it is alerted when determining potential faults.
The present invention has the following advantages：
(1) it is the cable network malfunction monitoring within 50 meters that can carry out length.
(2) no measurement dead area.
(3) precision is high, better than 1 meter.
(4) it using integral type multichannel optical interface, conveniently realizes multi channel fiber cable net and quickly detects.
Description of the drawings
Fig. 1 is a kind of structure diagram of cable network failure detector in the embodiment of the present invention；
Fig. 2 is a kind of measuring principle schematic diagram of cable network failure detector in the embodiment of the present invention；
In figure：00- optical transmitter and receivers, 10- integral type multichannels UFIU UMSC Fiber Interface Unit, 20- Multiplexing Units, the reflection inspection of 30- light coherent field
Unit, 40- light is surveyed to open the light unit, 50- intelligent management units, 60- power supply units, 70- cable networks, 71- optical fiber connectors I, 72-
Optical fiber connector II.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, it is public to the present invention below in conjunction with attached drawing
Embodiment is described in further detail.
With reference to Fig. 1, a kind of structure diagram of cable network failure detector in the embodiment of the present invention is shown.In this reality
It applies in example, cable network failure detector, including：Integral type multichannel UFIU UMSC Fiber Interface Unit 10, Multiplexing Unit 20, the reflection of light coherent field
Detection unit 30, light open the light unit 40 and intelligent management unit 50.
Such as Fig. 1, integral type multichannel UFIU UMSC Fiber Interface Unit, for passing through Multiplexing Unit by optical transmitter and receiver access optical cable net.Multiplexing is single
Member, for optical transmitter and receiver 00 to be accessed integral type multichannel UFIU UMSC Fiber Interface Unit.Light coherent field reflects detection unit, for exporting detection letter
Number, and fault location is carried out according to the corresponding feedback signal of detection signal, it is real in this way in the case where not interrupting optical transmitter and receiver business
Present line fault detect.Light opens the light unit, for carrying out the gating of tested optical channel under the control of intelligent management unit.Intelligence
Administrative unit for optical switch element to be controlled to carry out the gating of tested optical channel, is established and manages each optical fiber connection in cable network
The transmission performance archives of device and optical cable, provide fault pre-alarming and location information.
In the present embodiment, the multipath light signal of optical transmitter and receiver output and cable network are connect by integral type multichannel UFIU UMSC Fiber Interface Unit
Enter the Multiplexing Unit of cable network failure detector.Wherein, Multiplexing Unit can make the business information of optical transmitter and receiver and light coherent field
The detection signal that reflection detection unit is sent out injects cable network simultaneously, and interference-free each other, realizes On-line Fault monitoring.
In the present embodiment, light coherent field reflection detection unit, for intelligent management unit control light open the light unit choosing
After the tested optical channel of logical cable network, output detection signal will detect signal and inject the tested of cable network by Multiplexing Unit
Optical channel；And the light variation of monitoring feedback signal in real time, obtain failure detection result；Wherein, detection signal passes through cable network end
After the filter reflection at end, feedback signal is returned along cable network.
In the present embodiment, intelligent management unit, for the fault detect knot to the reflection detection unit output of light coherent field
Fruit is stored and is analyzed, and forms report；And it is alerted when determining potential faults.
In the preferred embodiment of the present invention, the cable network failure detector, can also include：Power supply unit
60, for providing power supply for the cable network failure detector.
With reference to Fig. 2, a kind of measuring principle schematic diagram of cable network failure detector in the embodiment of the present invention is shown.
In the present embodiment, it after cable network 70 is built up, exports cable network 70 using intelligent management unit 50 and is tested light
The gating signal of channel, after optical switch element 40 receives gating signal, by the inspection that sends out of light coherent field reflection detection unit 30
Signal is surveyed, tested cable network respective channel is injected by Multiplexing Unit 20 and integral type multichannel UFIU UMSC Fiber Interface Unit 10.Then, people
For manufacture cable network 70 in optical fiber connector I 71, optical fiber connector II 72, etc. optical fiber connectors failure thing
Part.Further, the abort situation that arrives of 30 positioning capturing of detection unit is reflected by light coherent field, determine optical fiber connector I 71,
Optical fiber connector II 72, etc. optical fiber connectors exact position, and generate cable network in intelligent management unit 50
70 network node figure, can be with real time on-line monitoring optical cable and each optical fiber connector in this way during 70 use of cable network
Transmission performance when penalty occurs, can give warning in advance, once breaking down, can quickly be accurately positioned trouble point.
Further, if cable network 70 breaks down, intelligent management unit 50 exports the choosing that cable network 70 is tested optical channel
After optical switch element 40 receives gating signal, the detection signal that sends out of light coherent field reflection detection unit 30 leads to for messenger
Multiplexing Unit 20 and integral type multichannel UFIU UMSC Fiber Interface Unit 10 are crossed, is injected into tested cable network respective channel.Fault point will generate
High inverted signal (feedback signal), the high inverted signal return to integral type multichannel UFIU UMSC Fiber Interface Unit 10, and single by multiplexing along cable network 70
Member 20 and optical switch element 40 send light coherent field reflection detection unit 30 back to.Light coherent field reflects detection unit 30 according to receiving
High inverted signal determine abort situation, and report and submit intelligent management unit 50 carry out abort situation alarm；If in cable network 70
Optical fiber connector break down, the high inverted signal detected can also be combined the network that draw before by intelligent management unit 50
Node diagram, the position of accurate determining failure optical fiber connector.
Each embodiment in this explanation is described by the way of progressive, the highlights of each of the examples are with its
The difference of his embodiment, just to refer each other for identical similar part between each embodiment.
The above, best specific embodiment only of the invention, but protection scope of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.
The content not being described in detail in description of the invention belongs to the known technology of professional and technical personnel in the field.
Claims (5)
1. a kind of cable network failure detector, which is characterized in that including：Integral type multichannel UFIU UMSC Fiber Interface Unit, Multiplexing Unit, light
Coherent field reflection detection unit, light open the light unit and intelligent management unit；
Integral type multichannel UFIU UMSC Fiber Interface Unit, for passing through Multiplexing Unit by optical transmitter and receiver access optical cable net；
Multiplexing Unit, for optical transmitter and receiver to be accessed integral type multichannel UFIU UMSC Fiber Interface Unit；
Light coherent field reflection detection unit detects signal for exporting, and carries out event according to the corresponding feedback signal of detection signal
Barrier positioning；
Light opens the light unit, for carrying out the gating of tested optical channel under the control of intelligent management unit；
Intelligent management unit for optical switch element to be controlled to carry out the gating of tested optical channel, is established and is managed each in cable network
The transmission performance archives of optical fiber connector and optical cable, provide fault pre-alarming and location information.
2. cable network failure detector according to claim 1, which is characterized in that further include；
Power supply unit, for providing power supply for the cable network failure detector.
3. cable network failure detector according to claim 1, which is characterized in that
The multipath light signal and cable network of optical transmitter and receiver output pass through integral type multichannel UFIU UMSC Fiber Interface Unit access optical cable net fault detect
The Multiplexing Unit of device.
4. cable network failure detector according to claim 1, which is characterized in that
Light coherent field reflects detection unit, for leading in the open the light tested light of one-cell switching cable network of intelligent management unit control light
After road, output detection signal will detect tested optical channel of the signal by Multiplexing Unit injection cable network；And it supervises in real time
The light variation of feedback signal is surveyed, obtains failure detection result；Wherein, after filter reflection of the detection signal by cable network end,
Feedback signal is returned along cable network.
5. cable network failure detector according to claim 4, which is characterized in that intelligent management unit, for light
The failure detection result of coherent field reflection detection unit output is stored and is analyzed, and forms report；And determining that failure is hidden
It is alerted when suffering from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477705.2A CN108155935B (en) | 2017-12-29 | 2017-12-29 | Optical cable network fault detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477705.2A CN108155935B (en) | 2017-12-29 | 2017-12-29 | Optical cable network fault detection device |
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| CN108155935A true CN108155935A (en) | 2018-06-12 |
| CN108155935B CN108155935B (en) | 2020-05-26 |
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| CN201711477705.2A Active CN108155935B (en) | 2017-12-29 | 2017-12-29 | Optical cable network fault detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752871A (en) * | 2018-12-05 | 2020-02-04 | 中兴通讯股份有限公司 | Optical link diagnostic method, and corresponding device and storage medium |
| CN110920448A (en) * | 2019-12-24 | 2020-03-27 | 重庆国翰能源发展有限公司 | Power conversion module control method for four-pile charging pile |
| CN113568064A (en) * | 2020-04-28 | 2021-10-29 | 中国移动通信集团浙江有限公司 | Optical cable vibration detection method and system and computing equipment |
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| Publication number | Publication date |
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| CN108155935B (en) | 2020-05-26 |
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