CN206332673U - A kind of optical fiber online testing device and its application circuit - Google Patents
A kind of optical fiber online testing device and its application circuit Download PDFInfo
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- CN206332673U CN206332673U CN201720023641.8U CN201720023641U CN206332673U CN 206332673 U CN206332673 U CN 206332673U CN 201720023641 U CN201720023641 U CN 201720023641U CN 206332673 U CN206332673 U CN 206332673U
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- multiselect
- optical fiber
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 43
- 238000012360 testing method Methods 0.000 title claims abstract description 22
- 238000000253 optical time-domain reflectometry Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims description 21
- 229940085805 fiberall Drugs 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
The utility model discloses a kind of optical fiber online testing device and its application circuit, it is related to technical field of photo communication.The technical solution adopted in the utility model is such：Including controller, OTDR equipment, the photoswitch of one-level multiselect one and two grades of photoswitches of multiselect one.The single-ended a port with many terminals of the photoswitch of one-level multiselect one of the wherein two grades photoswitches of multiselect one is connected；Single-ended being connected with OTDR equipment of the photoswitch of one-level multiselect one.The controller is respectively provided with signal and is connected with the photoswitch of one-level multiselect one, two grades of photoswitches of multiselect one, for controlling both paths to select.The controller is also connected with OTDR equipment, the testing result for receiving OTDR equipment output.
Description
Technical field
The utility model is related to technical field of photo communication, particularly a kind of optical fiber on-line measuring device.
Background technology
" the communication operation industry statistical communique in 2015 " issued at the beginning of Ministry of Industry and Information 2016 claims, national newly-built optical cable in 2015
441.3 ten thousand kilometers of circuit, lightguide cable link total length reached between 2487.3 ten thousand kilometers, 2010 ~ 2015 years, lightguide cable link total length
Speedup is more than 20%.Corresponding is that the maintenance task of fiber cable network will be more heavy.
At present, traditional optical cable maintenance mode is still relied primarily on manually, substantially follows below scheme：Failure generation-
Notice safeguards that unit-driving to institute of failure office-uses OTDR（Optical Time Domain Reflectometer, optical time domain is anti-
Penetrate instrument）Test-the general people hole site of searching-is driven to the position of fault-repaired.Lasting long obstacle recovery time causes
Economic loss increase, traditional manual maintenance mode is far from the growth requirement for meeting business on optical cable transmission network.
Therefore, intelligentized optical survey equipment and system are researched and developed, new period communication, electric power, oil, railway friendship is met
The industries such as logical, military affairs and the application demand of department seem particularly urgent.
Utility model content
Goal of the invention of the present utility model is：For above-mentioned problem, there is provided a kind of optical fiber online testing device.
The technical solution adopted in the utility model is such：Including controller, OTDR equipment, the photoswitch of one-level multiselect one
And two grades of photoswitches of multiselect one.
The single-ended a port with many terminals of the photoswitch of one-level multiselect one of the wherein two grades photoswitches of multiselect one is connected；One
Single-ended being connected with OTDR equipment of the level photoswitch of multiselect one.
The controller is respectively provided with signal and is connected with the photoswitch of one-level multiselect one, two grades of photoswitches of multiselect one, for controlling
Both path selections.
The controller is also connected with OTDR equipment, the testing result for receiving OTDR equipment output.
Further, also including telecommunication circuit；The controller is connected with the telecommunication circuit, for testing result to be sent
To telecommunication circuit, telecommunication circuit is used to send testing result.
Further, the photoswitch of one-level multiselect one and two grades of photoswitches of multiselect one are 8 and select 1 photoswitch.
Further, at least one port in many terminals that two grades of multiselects one are switched is connected by wavelength-division multiplex circuit and optical fiber
Connect.
Further, the port for many terminals that two grades of multiselects one are switched is respectively by a wavelength-division multiplex circuit and optical fiber all the way
Connection.
Further, the port for many terminals that one-level multiselect one is switched connects the single-ended of two grades of multiselect one switch respectively.
The utility model additionally provides a kind of application circuit based on foregoing optical fiber on-line measuring device, also including near-end
Transmission equipment, distal end transmission equipment, wave filter and optical fiber；Distal end transmission equipment is connected by one end of wave filter and optical fiber, light
Fine other end connection wavelength-division multiplex circuit, a port of wavelength-division multiplex circuit is connected with near-end transmission equipment, another end
The a port for many terminals that mouth is switched with two grades of multiselects one of the optical fiber on-line measuring device is connected.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, the utility model provides a kind of on-line measuring device of optical fiber, and optical fiber passes through wavelength-division multiplex in use
Circuit carries out the light pulse feeding OTDR equipment of the light pulse injection fibre of Detection wavelength and the Detection wavelength that will reflect back into
Detection.
2nd, testing result can be also sent in other management equipments in network by the utility model by telecommunication circuit, just
In centralized management.
3rd, the utility model substantially increases the utilization rate of OTDR equipment by the way of two optical switch stacks of multiselect one,
Those skilled in the art know that the cost of OTDR equipment in all kinds of optical fiber measurement equipments is very considerable, up to more than 10 ten thousand yuan of unit price
RMB, the cascade system that the utility model is provided can allow an OTDR equipment to detect a plurality of optical fiber, more save cost.
Brief description of the drawings
Fig. 1 is the structural representation of one specific embodiment of the utility model.
Fig. 2 is the utility model application example.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
As shown in figure 1, the optical fiber on-line measuring device that the utility model is provided includes：Including controller, OTDR equipment, one
The level photoswitch of multiselect one and two grades of photoswitches of multiselect one.
The single-ended a port with many terminals of the photoswitch of one-level multiselect one of the wherein two grades photoswitches of multiselect one is connected；One
Single-ended being connected with OTDR equipment of the level photoswitch of multiselect one.The controller and the photoswitch of one-level multiselect one, two grades of light of multiselect one
Switch is respectively provided with signal connection, for controlling both paths to select.The controller is also connected with OTDR equipment, for receiving
The testing result of OTDR equipment output.
In other embodiments, also including telecommunication circuit；The controller is connected with the telecommunication circuit, for that will detect
As a result telecommunication circuit is sent to, telecommunication circuit is used to send testing result.
Controller can select arm processor and realize.
The photoswitch of one-level multiselect one and two grades of photoswitches of multiselect one can select 8 select 1 photoswitch, 16 select 1 photoswitch or
Person 32 selects 1 photoswitch.In view of device volume limitation, the present embodiment selects 1 photoswitch from 8.
At least one port in many terminals that two grades of multiselects one are switched is connected by wavelength-division multiplex circuit with optical fiber.
In another embodiment, the port for many terminals that two grades of multiselects one are switched respectively by a wavelength-division multiplex circuit with
Optical fiber is connected all the way.It so can access the optical fiber on up to 8 tunnels.
The port for many terminals that one-level multiselect one is switched connects the single-ended of two grades of multiselect one switch respectively.Due to each
Two grades of switches of multiselect one can access 8 road optical fiber, by cascade, the road intelligent acess OTDR equipments of Ke Jiang 64.Control two-stage is more successively
The dredging collateral of a switch is selected, just the road optical fiber of Ke Dui 64 is detected.The utilization rate of OTDR equipment is greatly improved, cost is reduced.
Operation principle of the present utility model is illustrated presently in connection with Application Example, it is of the present utility model to be better understood from
Structure.
Referring to Fig. 2, by the utility model with original and in running order optical fiber, original optical fibre channel bag
Include near-end transmission equipment, optical fiber, distal end transmission equipment.Near-end transmission equipment is communicated by optical fiber with distal end transmission equipment.Needing
Wavelength-division multiplex circuit is also configured with the path for wanting multichannel wavelength transmission signal.
Be additionally arranged after the utility model, structure is that remote equipment is connected to one end of optical fiber by wave filter, optical fiber it is another
End is connected to near-end transmission equipment by wavelength-division multiplex circuit, and the another port of wavelength-division multiplex circuit is switched with two grades of multiselects one
The a port connection of many terminals, two grades of switches of multiselect one are connected by the switch of one-level multiselect one with OTDR equipment.
Between near-end transmission equipment and distal end transmission equipment signal, controller connection wavelength-division multiplex are transmitted using service wavelength
Circuit and OTDR equipment.OTDR equipment sends Detection wavelength, and wavelength-division multiplex circuit is defeated after service wavelength is multiplexed with Detection wavelength
Go out onto optical fiber, when optical fiber is normal, optical signal smoothly reaches wave filter, wave filter by service wavelength by and be transferred to distal end and pass
Transfer device.
When fibercuts, optical signal can be reflected in breaking part, and the optical signal of return passes through wavelength-division multiplex circuit, its
In Detection wavelength be separated out and passed back to by two-stage photoswitch in OTDR equipment, OTDR equipment determines the position of fibercuts
And testing result is sent to controller.
Service wavelength herein is not necessarily referring to the wavelength of characteristic with Detection wavelength, and so name is only to facilitate distinguishing is used for
The wavelength of signal transmission is different from the wavelength for fiber laser arrays, using 1550nm/1310nm wavelength to passing in the present embodiment
Defeated signal, Detection wavelength is used as with 1625nm wavelength.
Near-end transmission equipment herein and distal end transmission equipment, also distance not in absolute sense, so name be for
Relative position relation using two ends transmission equipment apart from optical fiber detector distinguishes two ends transmission equipments.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of optical fiber online testing device, it is characterised in that including controller, OTDR equipment, the photoswitch of one-level multiselect one with
And two grades of photoswitches of multiselect one；
The single-ended a port with many terminals of the photoswitch of one-level multiselect one of the wherein two grades photoswitches of multiselect one is connected；One-level is more
The single-ended of a photoswitch is selected to be connected with OTDR equipment；
The controller is respectively provided with signal and is connected with the photoswitch of one-level multiselect one, two grades of photoswitches of multiselect one, for controlling both
Path selection；
The controller is also connected with OTDR equipment, the testing result for receiving OTDR equipment output.
2. a kind of optical fiber online testing device according to claim 1, it is characterised in that also including telecommunication circuit；It is described
Controller is connected with the telecommunication circuit, and for testing result to be sent into telecommunication circuit, telecommunication circuit is used for testing result
Send.
3. a kind of optical fiber online testing device according to claim 1, it is characterised in that the photoswitch of one-level multiselect one
And two grades of photoswitches of multiselect one are 8 and select 1 photoswitch.
4. a kind of optical fiber online testing device according to claim 1, it is characterised in that the multichannel that two grades of multiselects one are switched
At least one port in end is connected by wavelength-division multiplex circuit with optical fiber.
5. a kind of optical fiber online testing device according to claim 1, it is characterised in that the multichannel that two grades of multiselects one are switched
The port at end is connected by a wavelength-division multiplex circuit with optical fiber all the way respectively.
6. a kind of optical fiber online testing device according to claim 1, it is characterised in that the multichannel that one-level multiselect one is switched
The port at end connects the single-ended of two grades of multiselect one switch respectively.
7. the application circuit based on the optical fiber online testing device described in any one in claim 1 ~ 6, it is characterised in that also
Including near-end transmission equipment, distal end transmission equipment, wave filter, optical fiber；One end that distal end transmission equipment passes through wave filter and optical fiber
Connection, the other end connection wavelength-division multiplex circuit of optical fiber, a port of wavelength-division multiplex circuit is connected with near-end transmission equipment, separately
The a port for many terminals that a port is switched with two grades of multiselects one of the optical fiber on-line measuring device is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720023641.8U CN206332673U (en) | 2017-01-10 | 2017-01-10 | A kind of optical fiber online testing device and its application circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720023641.8U CN206332673U (en) | 2017-01-10 | 2017-01-10 | A kind of optical fiber online testing device and its application circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206332673U true CN206332673U (en) | 2017-07-14 |
Family
ID=59294655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720023641.8U Active CN206332673U (en) | 2017-01-10 | 2017-01-10 | A kind of optical fiber online testing device and its application circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769847A (en) * | 2017-11-15 | 2018-03-06 | 国网江苏省电力公司徐州供电公司 | Tandem type fiber optic cable monitor method and monitoring system based on light time division technique |
| CN109039440A (en) * | 2018-09-14 | 2018-12-18 | 长飞光纤光缆股份有限公司 | A kind of efficient OTDR test macro and method |
-
2017
- 2017-01-10 CN CN201720023641.8U patent/CN206332673U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769847A (en) * | 2017-11-15 | 2018-03-06 | 国网江苏省电力公司徐州供电公司 | Tandem type fiber optic cable monitor method and monitoring system based on light time division technique |
| CN109039440A (en) * | 2018-09-14 | 2018-12-18 | 长飞光纤光缆股份有限公司 | A kind of efficient OTDR test macro and method |
| CN109039440B (en) * | 2018-09-14 | 2021-11-23 | 长飞光纤光缆股份有限公司 | Efficient OTDR test system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231220 Address after: Room 1105, 11th Floor, Unit 1, Building 1, No. 5, East Railway Station Road, Wuhou District, Chengdu City, Sichuan Province, 610000 Patentee after: Chengdu Laite Meiji Technology Co.,Ltd. Address before: 3rd Floor, Building D, No. 11 Gaopeng Avenue, High tech Zone, Chengdu City, Sichuan Province, 610041 Patentee before: CHENGDU ZHONGTONG JIAYE TECHNOLOGY DEVELOPMENT CO.,LTD. |
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| TR01 | Transfer of patent right |