CN205453697U - Terminal failure diagnosis auxiliary device of optical cable - Google Patents
Terminal failure diagnosis auxiliary device of optical cable Download PDFInfo
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- CN205453697U CN205453697U CN201620207975.6U CN201620207975U CN205453697U CN 205453697 U CN205453697 U CN 205453697U CN 201620207975 U CN201620207975 U CN 201620207975U CN 205453697 U CN205453697 U CN 205453697U
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- optical fiber
- fiber grating
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Abstract
The utility model discloses a terminal failure diagnosis auxiliary device of optical cable, include at least tail optical fiber fixer, the observable tail optical fiber, wherein the observable tail optical fiber comprises fiber optic plug, fiber grating fixer, fiber grating protective sheath, tail optical fiber, fiber grating, and the judgement is distinguished to the fiber grating and the two -parameter accurate trouble of reflected energy of utilization and optical communication wavelength quadrature wavelength, not only realizes the optical communication regular transmission but also realize the differentiation of light communication fault and diagnose, and simple structure, low cost, excellent in use effect.
Description
Technical field
This utility model relates to a kind of optical cable end fault diagnostic aid, belongs to fiber fault diagnosis technology neighborhood, and it realizes fiber optic communication fault diagnosis.
Background technology
Fiber optic communication is mainly by including that optical fiber, photoconverter, access device etc. form, in regular maintenance, fiber optic communication breakdown judge first needs to carry out fiber failure, photoconverter, the differentiation of access device fault, remotely to determine the accurate selection of attendant in advance, but, prior art cannot remotely accurately distinguish fiber failure and photoconverter connecting points fault, is that attendant carries out on-the-spot causing waste of human resource distinguishing fiber failure and photoconverter fault for this actual state.
nullIn the prior art，The patent application of such as Application No. CN201400004161.8，Propose the scheme of a kind of intelligentized optical branching device，Different reflection-absorption spectrum signatures and the mode using RFID chip to combine on optical branching device are set in branches different in fiber optic network，Such that it is able to different light branches is encoded，But，This scheme has following defects that 1、Owing to the network branches of multiplexing is too much，Between different reflection-absorption spectrums after superposition，The characteristic spectrum got in monitoring side often interferes impact，In real world applications，Cannot accurately obtain effective reflection peak information to judge，2、Owing to it is configured by wavelength division multiplex device，Its code capacity that can accommodate is limited，The coding requirement to magnanimity branch road can not be met far away，And there is easy the to be dirty aging and shortcoming of multiple malfunctions in wavelength division multiplexer，Cause the exact failure location that cannot accurately carry out optical branch，3、The prior art is only capable of and realizes the judgement of the branch trouble to limited quantity，And for the judgement of simple optical fiber fault and be accurate to the fault location of simple optical fiber，Then cannot realize.And for example in the prior art of Application No. CN201310493805.X, still have employed routine by calculate transmitting optical power, the exception of received optical power, the mode judged in conjunction with threshold range carries out fault location, and this kind of Fault Locating Method, it is merely capable of in the range of substantially judging, its positioning precision is the most all in units of km, need also exist for substantial amounts of manpower and materials and carry out the judgement of concrete abort situation, and the interference factor in being used by reality due to the measuring and calculating of luminous power is too much, it calculates error and will cause the range expansion of km rank easily, can only limitedly reduce the fault location consumption to manpower and materials cost.
In sum, existing fiber failure positioner and method are usually present following shortcoming: orientation range is excessive, simple optical fiber cannot be carried out accurate fault location, still need to put into substantial amounts of manpower and materials to the investigation of trouble point, need for this kind of remote failure that realizes in the case of ensureing proper communication to distinguish and the device of location.
Utility model content
The purpose of this utility model is: provide a kind of optical cable end fault diagnostic aid, it is properly functioning that it can realize optic communication, can realize again remote failure and distinguish, and realize location requirement just with tail optical fiber, facilitate replacing and the regular maintenance of equipment, to overcome the deficiencies in the prior art.
Specifically, the utility model proposes techniques below scheme:
A kind of optical cable end fault diagnostic aid, including at least one tail optical fiber holder, detectable tail optical fiber, the most detectable tail optical fiber is fixed in tail optical fiber holder.Described tail optical fiber holder can use simple clamping fixed structure, can use conventional fixed structure conventional in the art, as long as can reach stably to fix tail optical fiber.
Preferably; described detectable tail optical fiber is made up of Optical fiber plug, fiber grating holder, optical fiber grating protecting set, tail optical fiber, fiber grating; fiber grating directly can be carved on tail optical fiber by the way of photoetching; fiber grating passes fiber grating holder; and fiber grating holder being connected fixing with fiber grating, fiber grating holder is fixed to optical fiber grating protecting and overlaps above.Above-mentioned fixed form can be to use modes such as fastening, gluing.
Preferably, wavelength and the optic communication signal wavelength of the described fiber grating for fault detect are orthogonal, it is achieved optic communication is properly functioning and fault distinguish diagnoses both and combines.Described fiber grating can form various ways, and described fiber grating could be arranged to single, it is also possible to is set to multiple；The spatial separation such as multiple fiber gratings can be arranged to, it is also possible to be arranged to certain regular programmed non-equidistant pattern；The centre wavelength of multiple fiber gratings can be identical, it is possible to is arranged into the pattern being spaced certain wavelength spacing.
Preferably, the multiple fiber gratings in described device are that light is engraved in above an optical fiber.
Preferably, when the tail optical fiber in described device exists multiple fiber grating, the quantity of optical fiber grating protecting set and the length of optical fiber grating protecting set should adjust accordingly according to the total length of multiple fiber gratings.I.e. match with the total length of fiber grating, be as the criterion so that whole fiber gratings can stably be fixed.
Preferably, the direct light of described fiber grating is engraved in pigtail ends, and utilizes fiber grating holder and optical fiber grating protecting set to be fixed protection, prevents external force and variation of ambient temperature from causing fiber grating reflection kernel wavelength change.
Preferably, described tail optical fiber is connected with external optical cable.Described connection can be by the way of welding or by the way of ring flange.
Preferably, it is described when optic communication is broken down, instrument is used remotely to diagnose at point of presence, when instrument can diagnose the characteristic wavelength of certain optical fibre in optical cable optical grating reflection, and reflected energy is more than the threshold value set, both judged that detectable optical fiber was intact to machine room optical fiber, after fault occurs in detectable optical fiber；When instrument is not detected by the fiber grating of this wavelength or detects but greater attenuation occurs in reflected energy, then it is judged as Cable's Fault.
Preferably; described tail optical fiber holder farther includes to support seat, optical fiber grating protecting set, tail optical fiber fix seat; described supporting cover for seat is located in the plug casing of detectable tail optical fiber; and its front end is fixed with this plug casing interior forward end snap-fit engagement; it is connected between described optical fiber grating protecting set and a bearing; this is connected can be snap fit, it is also possible to be other conventional connected modes such as threaded grade；This optical fiber grating protecting set is fixing with Optical fiber plug casing ends inwall to be connected, and this fixing connection can be to pass through snap fit, it would however also be possible to employ other fixing connected modes such as threaded grade.
This utility model provides the benefit that: owing to have employed technique scheme, compared with prior art, this utility model meet optic communication properly functioning in the case of realize utilizing optic fiber grating wavelength and the two-parameter exact failure of reflected energy to distinguish and judge, and structure is simple, with low cost, using effect is good.
Accompanying drawing explanation
Accompanying drawing 1 is this utility model structural representation；
Accompanying drawing 2 is this utility model detectable tail optical fiber result schematic diagram.
Being labeled as in accompanying drawing: 1-tail optical fiber holder, the detectable tail optical fiber of 2-, 2-1-Optical fiber plug, 2-2-fiber grating holder, 2-3-optical fiber grating protecting set, 2-4-tail optical fiber, 2-5-fiber grating.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, it is described in detail below in conjunction with the accompanying drawings and the specific embodiments.Those skilled in the art should know, following specific embodiment or detailed description of the invention, be this utility model be the set-up mode that series of optimum that concrete utility model content enumerate is explained further, and all can be combined with each other or interrelated use between those set-up modes, cannot be associated arranging or being used in conjunction with other embodiment or embodiment unless clearly proposed some of which or a certain specific embodiment or embodiment at this utility model.Meanwhile, following specific embodiment or embodiment are only used as optimized set-up mode, and not as limiting the understanding of protection domain of the present utility model.
Embodiment 1
As it is shown in figure 1, a kind of optical cable end fault diagnostic aid that embodiment of the present utility model provides, including at least one tail optical fiber holder, detectable tail optical fiber, the most detectable tail optical fiber is fixed in tail optical fiber holder.
Preferably, described detectable tail optical fiber is made up of Optical fiber plug, fiber grating holder, optical fiber grating protecting set, tail optical fiber, fiber grating.The modes such as fiber grating directly can be carved on tail optical fiber by the way of photoetching, and fiber grating passes fiber grating holder, uses the modes such as glue the two to be connected fixing, fiber grating holder employing glue are fixed to optical fiber grating protecting and overlap above.
Preferably, the centre wavelength of described fiber grating and the wavelength of existing optic communication signal are orthogonal, it is achieved optic communication is properly functioning and fault distinguish diagnoses both and combines.Described fiber grating can form various ways, and described fiber grating could be arranged to single, it is also possible to is set to multiple；The spatial separation such as multiple fiber gratings can be arranged to, it is also possible to be arranged to certain regular programmed non-equidistant pattern；The centre wavelength of multiple fiber gratings can be identical, it is possible to is arranged into the pattern being spaced certain wavelength spacing.For example with 5 fiber gratings, between interval can be set as equidistant 2mm；The interval of centre wavelength is pre-set according to certain rule, such as, centre wavelength can be used equidistantly to be set, and wavelength interval can be set as 1.5nm.
Preferably; when there is multiple fiber grating in the tail optical fiber in described device; the length of optical fiber grating protecting set quantity and optical fiber grating protecting set should adjust accordingly according to the total length of multiple fiber gratings; guarantor's length 1cm of the most single fiber grating; the then a length of 5cm of the protection set of the fiber grating of 5 cascades; this optical fiber grating protecting set can cascade use, and cascade system can use the usual connected mode in this area.
Preferably, the direct light of described fiber grating is engraved in pigtail ends, and utilizes fiber grating holder and optical fiber grating protecting set to be fixed protection, prevents external force and variation of ambient temperature from causing fiber grating reflection kernel wavelength change.
Preferably, described tail optical fiber is connected with external optical cable.Described tail optical fiber is connected with external optical cable.Described connection can be by the way of welding or by the way of ring flange.
Preferably, described when optic communication is broken down, use instrument remotely to diagnose at point of presence, when instrument can diagnose the fiber grating of this wavelength, and greater attenuation does not occurs in reflected energy, both judged that distal optical fiber was intact to machine room optical fiber, after fault occurs in optical fiber；When instrument is not detected by the fiber grating of this wavelength or detects but greater attenuation occurs in reflected energy, then it is judged as Cable's Fault.
This utility model principle: characteristic and reflected energy stability characteristic (quality) realize optical fiber connector fault diagnosis to utilize fiber grating can recognize that.
Embodiment 2
In a specific embodiment; described tail optical fiber holder farther includes to support seat, optical fiber grating protecting set, tail optical fiber fix seat; described support cover for seat is located in the plug casing of detectable tail optical fiber; and its front end is fixed with this plug casing interior forward end snap-fit engagement; it is connected between described optical fiber grating protecting set and support seat; this is connected can be snap fit, it is also possible to be other conventional connected modes such as threaded grade；This optical fiber grating protecting set is fixing with Optical fiber plug casing ends inwall to be connected, and this fixing connection can be to pass through snap fit, it would however also be possible to employ other fixing connected modes such as threaded grade.
For making the fixing the safest of tail optical fiber; and can resist and certain pull power; in a specific embodiment; in caudal peduncle, it is also provided with tail optical fiber fixes seat; described tail optical fiber is fixed seat and is installed between support seat and optical fiber grating protecting set end; and tail optical fiber is fixed the front end of seat and is connected with the inner thread supporting seat, and described tail optical fiber is fixed and is provided with the through hole adapted with tail optical fiber on seat vertically.
In another specific embodiment, swing for making tail optical fiber be difficult to, and enable between support seat and caudal peduncle, keep certain axial tension to keep being unlikely to deform, it is provided with balancing spring between seat and caudal peduncle end supporting, with this balancing spring adaptably, a loop projection it is provided with on seat supporting, so that this balancing spring is stuck in this projection, thus holding position is fixed, correspondingly, in this caudal peduncle inner wall at end, it is again provided with annular projection, so that the balancing spring other end can be stuck in this projection, fixing of holding position, after installation is complete, this balancing spring is in confined state, to apply an outside tension force.
As the mode being more highly preferred to, can be on the basis of above-mentioned embodiment, disconnecting prevention structure between plug and socket is set further, but, those skilled in the art understand, this escapement can be use set-up mode conventional in the art realize, those modes have no effect on the enforcement of technical solutions of the utility model and the solution of technical problem, following preferred embodiment be only used as one more specifically embodiment be illustrated.
In this specific embodiment, described electrical connector also includes the escapement of anticreep after plug, socket grafting, and plug includes that plug casing, plug casing front end are provided with the receiving chamber of the inserted terminal for accommodating socket.Socket includes Socket casing, and the outer peripheral face of Socket casing is provided with anticreep groove, and on Socket casing, the front in anticreep groove is provided with the guide key groove that guide direction extends along the longitudinal direction, and guide key groove connects with the front end face of Socket casing.
Escapement includes being arranged at the elastic component accommodated in chamber, elastic component is an elastic collar, elastic component has the outer end being connected with plug casing, elastic the inner overhang with outside tilting unidirectional when bearing direction thrust from front to back is tilted backwards with the center towards receiving chamber, outer end is fitted on plug casing by packing ring, and outer end is press-fited on plug casing by the receipts riveting more particularly by packing ring.
At plug, during socket grafting, the inner of elastic component is used for coordinating with the anticreep groove elastic spacing on Socket casing and stoping the inserted terminal of socket by accommodating to deviate from chamber, guide on plug casing slip cap equipped with for applying by the thrust of front backward directions to elastic component inner so that stick up outside the inner of elastic component and by the solution lock tube of abjection in anticreep groove, solve lock tube and include that slip cap is loaded on the outer sleeve body of plug casing front end and is arranged at the interior body accommodated in chamber along the longitudinal direction, in, outer sleeve body connects by connecting plate is fixing, in, outer sleeve body is wholely set with connecting plate, the rear end of interior body for applying the thrust in direction backwards to the inner of elastic component.On plug casing, the rear in described elastic component is provided with the sealing ring for sealing grafting with the inserted terminal of respective socket housing, being convexly equipped with inwardly in the rear of elastic component on plug casing for guiding, with the guide key groove on Socket casing, the feather key coordinated, the front end face of feather key is positioned at the front of the plug insertion pin front end face of plug.
The above is preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, on the premise of without departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (7)
1. an optical cable end fault diagnostic aid, it is characterised in that: described device includes detectable tail optical fiber, at least one tail optical fiber holder, and described detectable tail optical fiber is fixed in tail optical fiber holder；Described detectable tail optical fiber is made up of Optical fiber plug, fiber grating holder, optical fiber grating protecting set, tail optical fiber, fiber grating；Described fiber grating is directly carved on tail optical fiber；
Described fiber grating holder is connected fixing with described fiber grating.
Device the most according to claim 1, it is characterised in that: described fiber grating passes fiber grating holder, and is connected by fiber grating holder fixing with fiber grating, and fiber grating holder is fixed to optical fiber grating protecting and overlaps above.
Device the most according to claim 1, it is characterised in that: wavelength and the optic communication signal wavelength of described fiber grating are orthogonal, for fault detect；Described fiber grating is one or more.
Device the most according to claim 3, it is characterised in that: the plurality of fiber grating is carved on same tail optical fiber.
Device the most according to claim 3, it is characterised in that: when inscribing multiple fiber grating on described tail optical fiber, the quantity of described optical fiber grating protecting set and the length of optical fiber grating protecting set are adjusted according to the total length of multiple fiber gratings.
Device the most according to claim 1, it is characterised in that: the direct light of described fiber grating is engraved in described pigtail ends, and utilizes fiber grating holder and optical fiber grating protecting set to be fixed protection.
Device the most according to claim 1, it is characterised in that: described tail optical fiber is connected with external optical cable, and this is connected as by the way of welding or by the way of ring flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207975.6U CN205453697U (en) | 2016-03-17 | 2016-03-17 | Terminal failure diagnosis auxiliary device of optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620207975.6U CN205453697U (en) | 2016-03-17 | 2016-03-17 | Terminal failure diagnosis auxiliary device of optical cable |
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| Publication Number | Publication Date |
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| CN205453697U true CN205453697U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620207975.6U Active CN205453697U (en) | 2016-03-17 | 2016-03-17 | Terminal failure diagnosis auxiliary device of optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285751A (en) * | 2021-03-24 | 2021-08-20 | 国网江苏省电力有限公司徐州供电分公司 | Optical fiber communication system and optical fiber line switching protection method |
-
2016
- 2016-03-17 CN CN201620207975.6U patent/CN205453697U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285751A (en) * | 2021-03-24 | 2021-08-20 | 国网江苏省电力有限公司徐州供电分公司 | Optical fiber communication system and optical fiber line switching protection method |
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