CN206627127U - Fiber switch junction sensor - Google Patents
Fiber switch junction sensor Download PDFInfo
- Publication number
- CN206627127U CN206627127U CN201720315558.8U CN201720315558U CN206627127U CN 206627127 U CN206627127 U CN 206627127U CN 201720315558 U CN201720315558 U CN 201720315558U CN 206627127 U CN206627127 U CN 206627127U
- Authority
- CN
- China
- Prior art keywords
- fiber
- optical fiber
- collimator
- light
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Optical Communication System (AREA)
Abstract
The utility model discloses a kind of fiber switch junction sensor, sensor body, optical fiber fiber management tray, fiber splitter, first, second optical fiber collimator, movable slider, elastic component, 3rd port of the first port with higher level's intelligent acess, the second port of local fiber access and subordinate's intelligent acess in sensor body, by setting optical fiber fiber management tray, increase the time slot between pulsed light, by setting fiber splitter to separate light path, more junction sensors can be connected, to have set up multiple fiber cable cross connection box networks；By setting first, second optical fiber collimator to connect fiber splitter and local fiber, and moveable sliding block and elastic component are set between two optical fiber collimators, the Mechanical course of the on off operating mode backwards to pulsed light can be achieved.The utility model after setting up sensing network, to the on off state of monitored multiple fiber cable cross connection boxes can monitor simultaneously as sensing node in passive condition by a signal resolution equipment.
Description
Technical field
Optical sensing field is the utility model is related to, is specifically related to a kind of fiber switch junction sensor.
Background technology
Fiber cable cross connection box is the handing-over equipment that optic fiber distribution, jumper connection are provided for main dried layer optical cable, wiring layer optical cable.Optical cable draws
After entering fiber cable cross connection box, after fixation, termination, with fibre, trunk layer optical cable is connected with wiring layer optical cable using jumping fiber.It is led
It is used to connect backbone optical cable and branched cable in fiber optic cable communications network, terminal, protection, connection and tune is carried out to optical cable, optical fiber
Spend the distribution plant of management.
With the popularization of TTX network technologies, the extension of Various types of data business, operator largely sets optical cable to hand in city
Connect the access that case is used for fiber cable network.It is a large amount of important industry of carrying again but most of fiber cable cross connection box is installed outdoors, in case
The mute resource of business, as inactive component, longtime running out of doors, make by safe operation of the changeable peripheral environment to fiber cable cross connection box
Into potential threat, attendant can not distally be managed and monitoring is a very serious and urgent problem to be solved.
Because substantial amounts of fiber cable cross connection box is all the branch distributor case of optical fiber passive connection, fiber cable cross connection box is dispersed in city
Each corner, the access and management of power supply can not be accomplished, therefore in general electric transducer can not be applied.There is operator's design to open
The cross-connecting box management system of solar energy and battery is sent out, still, this kind of equipment investment cost is high, and operation maintenance cost is also high, because
And it is difficult to popularize.Because fiber cable cross connection box by unauthorised broken, casualty loss and caused by fiber-optic signal failure have resulted in fortune
The substantial amounts of O＆M of business and traffic lost are sought, serious even causes political fallout.Therefore, the safety of cross-connecting box is ensured, is to protect
Hinder the most important condition that network last one kilometer can be unobstructed.
In order to ensure the safety of cross-connecting box, a kind of chamber door that can detect fiber cable cross connection box is objectively needed to open and close
Technological means and sensing equipment, to judge whether fiber cable cross connection box is illegally opened, still, fiber cable cross connection box for optical fiber jump
Fibre, power supply is not provided.So objectively require that the switch sensor is inactive component.The chamber door folding shape that sensing equipment is detected
State amount is also required to pass to background system in the case of not powering.Therefore, present applicant has proposed a kind of reflection based on optical fiber
Formula switch sensor and a kind of transmission-type switch sensor based on optical fiber, referring to patent document CN205861075U and
CN205861076U, the reflected light break-make of the light beam sent using DC light source in the sensor express the switch shape of sensor
State.This two classes switch sensor have been applied in distributing box of communication optical cable door leaf open, closure sensing in, by it is reflective with
The combination of two kinds of sensors of transmission-type, it is possible to achieve the monitoring to the multiple leaf door page of multi-door fiber cable cross connection box.
But for for handle reflected light signal signal resolution equipment can only by the presence of reflected light in optical fiber with
It is no to judge the door leaf folding condition of single fiber optic cable cross-connecting box.This results in needing to use largely idle optical fiber money in practical application
Source could complete the monitoring to multiple fiber cable cross connection box door leaf folding conditions, and then cause the deployment of optical fiber sensing system to make
Into the reduction of telecom operators' fiber optic network dilatation ability.
Because base station equipment size reduction, communications equipment room number became fewer and fewer in recent years, cause to be difficult to now
Find enough communications equipment rooms and dispose signal resolution equipment for handling reflected light signal nearby.Therefore, there is an urgent need to one
The new fiber switch sensing solutions of kind.
Due to fiber cable cross connection box generally along optical cable tunnel-type into tandem semicircular configuration.New Fibre Optical Sensor scheme needs
Consider the sensing sensed on semicircular configuration using the multiple optical cross box door leaf foldings of separate unit transducing signal analytical equipment receiving
Network.
In addition in some high-capacity optical cables join scene, the feelings that two fiber cable cross connection boxes are put together side by side be present
Shape.New Fibre Optical Sensor scheme needs to monitor neighbouring two fiber cable cross connection boxes simultaneously, and has in transducing signal analytical equipment
Effect distinguishes the transducing signal from two different fiber cable cross connection boxes.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model proposes a kind of fiber switch junction sensor, saved as sensing
Point so that multiple junction sensors carry out networking and are possibly realized, and realize switch shape of the passive condition to fiber cable cross connection box chamber door
The monitoring function of state, and monitored simultaneously available for neighbouring two fiber cable cross connection boxes.
What the technical solution of the utility model was realized in：
A kind of fiber switch junction sensor, including sensor body, optical fiber fiber management tray, fiber splitter, the first optical fiber
Collimater, the second optical fiber collimator, movable slider, elastic component, have for higher level's intelligent acess in the sensor body
First port, the second port for local fiber access and the 3rd port for subordinate's intelligent acess, first optical fiber
Collimater is housed with the second optical fiber collimator interval setpoint distance and is positioned in the sensor body, and first light
Fine collimater realizes Gaussian Beam Coupling with second optical fiber collimator；Higher level's optical fiber is after the first port from the light
The fiber entrance of fine fiber management tray is penetrated and after the fine setting length of disk, passed from the fiber outlet of the optical fiber fiber management tray, Ran Houjie
Enter the input of the fiber splitter；The input that the fiber splitter passes through an output end and first optical fiber collimator
End connection, the fiber splitter are connected by an output end with the subordinate's optical fiber accessed through the 3rd port；Described second
The output end of optical fiber collimator is connected with the local fiber accessed through the second port；There is thang-kng in the middle part of the movable slider
Hole, the movable slider are located between first optical fiber collimator and second optical fiber collimator, and can be in the sensing
Slided in device body, the light hole is connected first optical fiber collimator and second optical fiber collimator, form light path
Thang-kng；Or the light hole is staggered first optical fiber collimator and second optical fiber collimator, form light path and block,
The elastic component is folded between the movable slider and sensor body.
Further, the optical fiber fiber management tray inner disk fibre length is more than 100m.
Further, the optical fiber fiber management tray inner disc fibre length is 500m.
Further, the fiber splitter is 1 point of 2 structure.
Further, the connection end splitting ratio of the fiber splitter and first optical fiber collimator is less than 80%.
Further, the connection end splitting ratio of the fiber splitter and first optical fiber collimator is 10%.
Further, the elastic component drives the movable slider to slide, and passes one end of movable slider and exposes to biography
Sensor sheet is external, and the light hole staggers first optical fiber collimator and second optical fiber collimator, and light path blocks；Driving
The compressible elastic component energy storage in the exposed one end of the movable slider, the light hole is set to connect first optical fiber collimator
With second optical fiber collimator, light path thang-kng.
Further, the elastic component is compression spring.
Further, the second port connects a Faraday polarization apparatus, or second end by local fiber
Mouth is replaced by a light reflection mirror with second optical fiber collimator.
Further, using pulsed light as sensing optical signal, pulsed light is after the fiber switch junction sensor
It is reflected back to form the back of the body after optical fiber fiber management tray, fiber splitter, the first optical fiber collimator, light hole, the second optical fiber collimator B
To pulsed light；Or optical fiber fiber management tray, fiber splitter, first optical fiber of the pulsed light after the fiber switch junction sensor
It is reflected back to be formed backwards to pulsed light after collimater, light hole, the second optical fiber collimator B, Faraday polarization apparatus；Or pulse
Light is after the optical fiber fiber management tray of the fiber switch junction sensor, fiber splitter, the first optical fiber collimator, light hole, light
It is reflected back to be formed backwards to pulsed light after speculum.
The beneficial effects of the utility model are：The utility model provides a kind of fiber switch junction sensor, has three
Port, respectively first port, second port and the 3rd port, first port are used to set by higher level's optical fiber connection signal resolution
Junction sensor in standby or upper level fiber cable cross connection box, second port are used to connect local fiber network cross-connecting box by local fiber
Fiber switch sensor on other interior door leafs, the 3rd port are used to connect in next stage fiber cable cross connection box by subordinate's optical fiber
Junction sensor, so, the utility model can serve as sensing node, for setting up backwards to pulsed light fiber switch Sensor Network
Network is to connect multiple fiber cable cross connection boxes, that is to say, that only passes through a signal resolution equipment, so that it may monitor in multiple fiber cable cross connection boxes
The door switch state of each fiber cable cross connection box, solving communications equipment room becomes fewer and fewer, causes to be difficult to find that foot now
Enough communications equipment rooms dispose the technical problem of the signal resolution equipment for handling reflected light signal nearby, avoid due to reality
Need to use the fiber resource that largely leaves unused to complete the monitoring to multiple fiber cable cross connection box door leaf foldings in, cause optical fiber
The problem of deployment of sensor-based system may cause the reduction of telecom operators' fiber optic network dilatation ability, its principle is：Provided with light
Fine fiber management tray, it is fine by the disk for setting length, to increase the time slot between pulsed light, that is to say, that passed through backwards to pulsed light
Go through after optical fiber fiber management tray, it is necessary to take longer time, it, which is acted on, is so that being reached backwards to pulsed light for each sensing node
There is different durations during signal resolution equipment, make have the clearly recognizable time special in time domain backwards to pulsed optical signals
Sign, so as to which signal resolution equipment can be identified one by one to multiple fiber cable cross connection boxes.It may be such that by disk fibre increment monitored
The minimum ranges of two adjacent fiber cable cross connection boxes be not limited, and transducing signal analyzing device effectively can come Division identification
From the pulsed optical signals of two adjacent optical cross box inner sensor reflections.Wherein, fiber splitter separates light path, for even
More junction sensors are connect, so as to set up the link of multiple fiber cable cross connection boxes；First optical fiber collimator, the second optical fiber are accurate
Straight device and movable slider and elastic component, for the monitoring of the door switch state of local fiber network cross-connecting box one, equivalent to one reflection
The fiber switch sensor of formula or transmission-type, the folding sensing of local fiber network cross-connecting box Yishanmen page is used directly for, so as to
The number for the device that is of coupled connections in local sensing sub-network is reduced, improves the stability of sensing network.Other the utility model
Using pulsed light as sensing optical signal so that what is be reflected back on senser element has backwards to pulsed light in time-domain signal analysis
There is more preferable signal-to-noise characteristic.
Brief description of the drawings
Fig. 1 is structural representation when a kind of embodiment light path of the utility model blocks；
Structural representation when Fig. 2 is a kind of embodiment light path thang-kng of the utility model；
Fig. 3 is structural representation when the utility model another kind embodiment light path blocks；
Structural representation when Fig. 4 is the utility model another kind embodiment light path thang-kng；
Embodiment
In order to be more clearly understood that technology contents of the present utility model, described in detail especially exemplified by following examples, its mesh
Be only that be best understood from content of the present utility model and unrestricted the scope of protection of the utility model.
Embodiment 1
As depicted in figs. 1 and 2, a kind of fiber switch junction sensor, including sensor body 11, optical fiber fiber management tray 12,
Fiber splitter 13, the first optical fiber collimator 14, the second optical fiber collimator 15, movable slider 16, elastic component 17, the sensor
There is the first port 1101 for being used for higher level's optical fiber 18 and accessing, the and of second port 1102 accessed for local fiber 19 on body
The 3rd port 1103 accessed for subordinate's optical fiber 110, first optical fiber collimator and the second optical fiber collimator interval
Setpoint distance is accommodating to be positioned in the sensor body, and first optical fiber collimator and second optical fiber collimator are real
Existing Gaussian Beam Coupling；Higher level's optical fiber is penetrated after the first port from the fiber entrance of the optical fiber fiber management tray and disk fibre is set
After measured length, passed from the fiber outlet of the optical fiber fiber management tray, then access the input of the fiber splitter；The light
Fine optical splitter is connected by an output end with the input of first optical fiber collimator, and the fiber splitter passes through an output
End is connected with the subordinate's optical fiber accessed through the 3rd port；The output end of second optical fiber collimator with through second end
The local fiber connection of mouth access；There is light hole 1601, the movable slider is located at described in two in the middle part of the movable slider
It between optical fiber collimator, and can be slided in the sensor body, the light hole is connected first optical fiber collimator
With second optical fiber collimator, light path thang-kng is formed；Or the light hole is set to stagger first optical fiber collimator and institute
The second optical fiber collimator is stated, light path is formed and blocks, the elastic component is folded between the movable slider and sensor body.
The above-mentioned fiber switch junction sensor structure of the utility model, there are three ports, respectively first port, second
Port and the 3rd port, first port are used to connect in signal resolution equipment or upper level fiber cable cross connection box by higher level's optical fiber
Junction sensor, the fiber switch that second port is used to connect by local fiber in local fiber network cross-connecting box on other door leafs pass
Sensor, the 3rd port are used to connect the junction sensor in next stage fiber cable cross connection box by subordinate optical fiber, during concrete application, on
Level optical fiber, local fiber and subordinate's optical fiber can use tail optical fiber, the tail optical fiber type of first port and second port can for FC/UPC or
SC/UPC, the tail optical fiber type of the 3rd port can be FC/APC, and so, the utility model can serve as sensing node, set up
Backwards to pulsed light fiber switch sensing network, to connect multiple fiber cable cross connection boxes.And sensing network can pass through a signal resolution
Equipment, the door switch state of each fiber cable cross connection box in multiple fiber cable cross connection boxes is monitored, solving communications equipment room becomes increasingly
It is few, cause to be difficult to find that enough communications equipment rooms dispose nearby now setting for handling the signal resolution of reflected light signal
Standby technical problem, avoid due to needing to use the fiber resource that largely leaves unused to complete to multiple optical cable joinings in practical application
The monitoring of chamber door page folding, the deployment of optical fiber sensing system is caused to cause the drop of telecom operators' fiber optic network dilatation ability
The problem of low, technical principle of the present utility model are：It is fine by the disk for setting length provided with optical fiber fiber management tray, increase backwards
Time slot between pulsed light, that is to say, that backwards to pulsed light, it is necessary to take longer time after optical fiber fiber management tray is undergone, it is made
There is different durations in arriving signal analyzing device with the pulsed light backwards for being so that each sensing node, make backwards to pulse
Optical signal has clearly recognizable temporal characteristics in time domain；So as to which signal resolution equipment can be entered to multiple fiber cable cross connection boxes
Row identifies one by one.Provided with the fiber splitter for separating light path, for connecting more junction sensors, so as to extension
Property, the network of multiple fiber cable cross connection boxes can have been set up.First optical fiber collimator, the second optical fiber collimator and movable slider and elasticity
Part, for the monitoring of the door switch state of local fiber network cross-connecting box one, reflective equivalent to one or transmission-type fiber switch
Sensor, the folding sensing of local fiber network cross-connecting box Yishanmen page is used directly for, so as to reduce local sensing sub-network
In be of coupled connections the number of device, improve the stability of sensing network.
Preferably, the elastic component drives the movable slider to slide, and passes one end of movable slider and exposes to sensing
Device sheet is external, and the light hole staggers first optical fiber collimator and second optical fiber collimator, and light path blocks；Driving institute
State the compressible elastic component energy storage in the exposed one end of movable slider, make the light hole connect first optical fiber collimator and
Second optical fiber collimator, light path thang-kng.So, when chamber door is opened, elastic component driving movable slider slides, and makes the first optical fiber
Light path between collimater and the second optical fiber collimator blocks；When chamber door closes, chamber door can drive the exposed one end of movable slider
Compression elastic piece energy storage, make to form light path through the light hole between the first optical fiber collimator and the second optical fiber collimator；Activity
One end (press-side) of sliding block exposes to sensor body through the perforate of sensor body side, for receive chamber door pressing with
Opening action.This is a kind of preferred embodiment, and other, can be sliding activity according to actual conditions in other embodiment
When block is designed to that some exposes sensor body, light path is thang-kng state, otherwise light path is blocked.
Preferably, the elastic component is compression spring.So, the sandwiched pressure between movable slider and sensor body is passed through
Contracting spring, compression spring is used for when chamber door is opened or the when of closure resets movable slider, shifts the light hole on movable slider to hinder
Disconnected or connection light path.
Preferably, the optical fiber fiber management tray inner disk fibre length is more than 100m, so, is undergoing the node backwards to pulsed light
, it is necessary to take longer time during sensor so that the pulsed light backwards of each sensing node is in arriving signal analyzing device
With different durations, there are clearly recognizable temporal characteristics in time domain backwards to pulsed optical signals.
Preferably, the optical fiber fiber management tray inner disc fibre length is 500m, and the longer the better on disk fibre length ideal, but it is actual should
Used time, in order to ensure that the size of fiber management tray is not excessive, preferably disk fibre length is 500m.
Preferably, the fiber splitter is 1 point of 2 structure.It is segmented into by the fiber splitter local and next
Two light paths of level, multiple fiber cable cross connection boxes are in sequential series.
Preferably, the connection end splitting ratio of the fiber splitter and first optical fiber collimator is less than 80%.In order to
Avoid light in next stage fibre optical sensor too weak, here, it is desirable to which the connection end light splitting of the first optical fiber collimator is less than 80%.More
Good, the connection end splitting ratio of the fiber splitter and first optical fiber collimator is 10%.
The utility model fiber switch junction sensor can be applied in the fiber cable cross connection box with a chamber door, now,
The second port connects a Faraday polarization apparatus by local fiber, input pulse light in superior optical fiber, direct impulse
Light is revolved after optical fiber fiber management tray, fiber splitter, the first optical fiber collimator, light hole, the second optical fiber collimator by the faraday
Light device reflects to be formed backwards to pulsed light light path.So, the presence backwards to pulsed light light path can express chamber door closure with disappearance
With opening two states, that is to say, that chamber door folding condition amount directly can be transferred to signal resolution equipment by thang-kng optical fiber, with nothing
Under the site environment of source condition, the on off state of fiber cable cross connection box is monitored, effective various devices solved under non-transformer environment,
The monitoring problem of the on off state of " door " of equipment.
The utility model fiber switch junction sensor is applied also in the fiber cable cross connection box with two chamber doors, this
When, the fiber switch junction sensor be used for one door opening or closing state of fiber cable cross connection box monitoring, fiber cable cross connection box it is another
The open and-shut mode of chamber door is monitored by a reflection type optical fiber switch sensor, the second fiber optic collimator of the fiber switch junction sensor
Device connects reflection type optical fiber switch sensor through local fiber；The input pulse into higher level's optical fiber of fiber switch junction sensor
Light, direct impulse light after optical fiber fiber management tray, fiber splitter, the first optical fiber collimator, light hole, the second optical fiber collimator by
The reflection type optical fiber switch sensor reflects to be formed backwards to pulsed light light path.The structure of reflection type optical fiber switch sensor and
Principle, it has been discussed in detail, has will not be repeated here in patent document CN205861075U.
In the fiber cable cross connection box that the utility model fiber switch junction sensor is also applied to have two or more chamber door, this
When, the fiber switch junction sensor is used for the monitoring of one door opening or closing state of fiber cable cross connection box, other casees of fiber cable cross connection box
The open and-shut mode of door by a reflection type optical fiber switch sensor and at least, open by a transmission-type fiber switch Sensor monitoring, the optical fiber
Joint point sensor is sequentially connected in series with an at least transmission-type fiber switch sensor and the reflection type optical fiber switch sensor
Together；The input pulse light into higher level's optical fiber of fiber switch junction sensor, direct impulse light is through optical fiber fiber management tray, optical fiber point
It is anti-by this after light device, the first optical fiber collimator, light hole, the second optical fiber collimator, an at least transmission-type fiber switch sensor
Formula fiber switch sensor is penetrated to reflect to be formed backwards to pulsed light light path.Reflection type optical fiber switch sensor and transmission-type optical fiber
The structure and principle of switch sensor, it has been discussed in detail in patent document CN205861075U and CN205861076U,
This is repeated no more.
The operation principle of the utility model fiber switch junction sensor is as follows：
By setting optical fiber fiber management tray, set the disk fibre of length, to increase the time slot between pulsed light, also
It is to say that for pulsed light, it is necessary to take longer time after optical fiber fiber management tray is undergone, its effect is so that each sensing node backwards
There is different durations in arriving signal analyzing device backwards to pulsed light, make in time domain to have backwards to pulsed optical signals bright
Really recognizable temporal characteristics, so as to which signal resolution equipment can be identified one by one to multiple fiber cable cross connection boxes.Pass through setting
Fiber splitter separates light path, for connecting more junction sensors, so as to set up the chain of multiple fiber cable cross connection boxes
Road；By the setting of the first optical fiber collimator, the second optical fiber collimator and movable slider and elastic component, join for local fiber network
The monitoring of the door switch state of case one, reflective equivalent to one or transmission-type fiber switch sensor, is used directly for
The folding sensing of local fiber network cross-connecting box Yishanmen page, so as to reduce the number for the device that is of coupled connections in local sensing sub-network,
Improve the stability of sensing network；I.e. by setting the first optical fiber collimator and the second optical fiber collimator to connect fiber splitter
And local fiber, and moveable sliding block and elastic component are set between two optical fiber collimators, it can be achieved backwards to pulse
The Mechanical course of the on off operating mode of light path, concrete operating principle are：Two optical fiber collimators are formed with light hole on movable slider
Stable light path；The displacement of movable slider makes light hole have connection or with blocking two states amount；When monitored device
Door, for example when the chamber door of fiber cable cross connection box be closed mode, the exposed junction of movable slider is squeezed in, and spring, which is in, compresses shape
State, referring to Fig. 1, now, on same straight line, optical path states are the light hole and two optical fiber collimators in the middle part of movable slider
" logical ", i.e. light path thang-kng.On the contrary, the door of monitored device, such as when the chamber door of fiber cable cross connection box be in door opening state, compression bullet
Spring energy storage discharges, and movable slider is ejected by spring, referring to Fig. 2, now, light hole and two fiber optic collimators in the middle part of movable slider
Device is not arranged on the same straight line, and light path is " disconnected ", i.e., light path blocks.So far, the switch state of " door " is monitored for light
The on off operating mode on road.So, can effectively be solved by the switch state of " door " for the break-make of light path under non-transformer environment
Various devices, equipment " door " on off state monitoring problem.
Embodiment 2
As shown in Figure 3 and Figure 4, a kind of fiber switch junction sensor, including sensor body 21, optical fiber fiber management tray 22,
Fiber splitter 23, the first optical fiber collimator 24, light reflection mirror 25, movable slider 26, elastic component 27, in the sensor body
The second port 2102 accessed with the first port 2101 accessed for higher level's optical fiber 28 and for subordinate's optical fiber 29, described the
One optical fiber collimator is housed with light reflection mirror interval setpoint distance and is positioned in the sensor body, and first light
The axis of fine collimater is perpendicular to the light reflection mirror；Higher level's optical fiber is after the first port from the light of the optical fiber fiber management tray
Fine entrance penetrates and after the fine setting length of disk, is passed from the fiber outlet of the optical fiber fiber management tray, then access the optical fiber point
The input of light device；The fiber splitter is connected by an output end with the input of first optical fiber collimator, described
Fiber splitter is connected by an output end with subordinate's optical fiber through the second port；Have in the middle part of the movable slider logical
Unthreaded hole 2601, the movable slider are located between first optical fiber collimator and the light reflection mirror, and can be in the sensing
Slided in device body, the light hole is connected first optical fiber collimator and the light reflection mirror, form light path thang-kng；Or
Person makes the light hole stagger first optical fiber collimator and the light reflection mirror, forms light path and blocks, the elastic component folder
It is placed between the movable slider and sensor body.
The present embodiment 2 is a difference in that with embodiment 1：It is anti-that the second optical fiber collimator in embodiment 1 is replaced with into light
Mirror is penetrated, when in applied to the fiber cable cross connection box with a chamber door, input pulse light in superior optical fiber, direct impulse light warp
Reflected and formed backwards to pulse by the light reflection mirror after optical fiber fiber management tray, fiber splitter, the first optical fiber collimator, light hole
Light light path.So, direct impulse light can be reflected after light hole by light reflection mirror, be formed backwards to pulsed light, such case,
Because it lacks the port of the fiber switch sensor in connection local fiber network cross-connecting box on other door leafs, therefore, the optical fiber is opened
Joint point sensor is only applicable on the fiber cable cross connection box with a chamber door.It can also be used as sensing node, for setting up
Backwards to pulsed light fiber switch sensing network to connect multiple fiber cable cross connection boxes, monitor each optical cable in multiple fiber cable cross connection boxes and hand over
Connect the door switch state of case.
To sum up, this patent is used to that when setting up backwards to pulsed light fiber switch sensing network multiple optical cable joinings can be connected
Case, it is to connect superior node, downstream site and local fiber network cross-connecting box respectively by three ports to sense subnet that it, which is acted on, from
And establish backwards to pulsed light switch sensing node.
Above example is that referring to the drawings, preferred embodiment of the present utility model is described in detail.The skill of this area
Art personnel are by carrying out modification or change on various forms to above-described embodiment, but without departing substantially from substantive feelings of the present utility model
Under condition, all fall within the scope of protection of the utility model.
Claims (10)
- A kind of 1. fiber switch junction sensor, it is characterised in that：Including sensor body (11), optical fiber fiber management tray (12), light Fine optical splitter (13), the first optical fiber collimator (14), the second optical fiber collimator (15), movable slider (16), elastic component (17), institute Stating has the first port (1101) for being used for higher level's optical fiber (18) access, for local fiber (19) access in sensor body Second port (1102) and the 3rd port (1103) for subordinate's optical fiber (110) access, first optical fiber collimator and institute State that the second optical fiber collimator interval setpoint distance is accommodating to be positioned in the sensor body, and first optical fiber collimator with Second optical fiber collimator realizes Gaussian Beam Coupling；Higher level's optical fiber is after the first port from the optical fiber fiber management tray Fiber entrance penetrates and after the fine setting length of disk, is passed from the fiber outlet of the optical fiber fiber management tray, then access the optical fiber The input of optical splitter；The fiber splitter is connected by an output end with the input of first optical fiber collimator, institute Fiber splitter is stated to be connected with the subordinate's optical fiber accessed through the 3rd port by an output end；Second optical fiber collimator Output end be connected with the local fiber accessed through the second port；There is light hole (1601) in the middle part of the movable slider, The movable slider is located between first optical fiber collimator and second optical fiber collimator, and can be in the sensor sheet Slide in vivo, the light hole is connected first optical fiber collimator and second optical fiber collimator, form light path thang-kng； Or the light hole is staggered first optical fiber collimator and second optical fiber collimator, and form light path and block, it is described Elastic component is folded between the movable slider and sensor body.
- 2. fiber switch junction sensor according to claim 1, it is characterised in that：The optical fiber fiber management tray inner disk is fine Length is more than 100m.
- 3. fiber switch junction sensor according to claim 1, it is characterised in that：The optical fiber fiber management tray inner disc is fine long Spend for 500m.
- 4. fiber switch junction sensor according to claim 1, it is characterised in that：The fiber splitter is 1 point of 2 knot Structure.
- 5. fiber switch junction sensor according to claim 1, it is characterised in that：The fiber splitter and described the The connection end splitting ratio of one optical fiber collimator is less than 80%.
- 6. fiber switch junction sensor according to claim 1, it is characterised in that：The fiber splitter and described the The connection end splitting ratio of one optical fiber collimator is 10%.
- 7. fiber switch junction sensor according to claim 1, it is characterised in that：The elastic component drives the activity Sliding block slides, and passes one end of movable slider and exposes to outside sensor body, and stagger first optical fiber of the light hole is accurate Straight device and second optical fiber collimator, light path block；Drive the compressible elastic component in the exposed one end of the movable slider Energy storage, the light hole is set to connect first optical fiber collimator and second optical fiber collimator, light path thang-kng.
- 8. fiber switch junction sensor according to claim 1, it is characterised in that：The elastic component is compression spring.
- 9. fiber switch junction sensor according to claim 1, it is characterised in that：The second port passes through local light Fibre one Faraday polarization apparatus of connection, or the second port are replaced by light reflection with second optical fiber collimator Mirror.
- 10. fiber switch junction sensor according to claim 9, it is characterised in that：Using pulsed light as sense light Signal, pulsed light after the optical fiber fiber management tray of the fiber switch junction sensor, fiber splitter, the first optical fiber collimator, It is reflected back to be formed backwards to pulsed light after light hole, the second optical fiber collimator B；Or pulsed light is after the fiber switch section The optical fiber fiber management tray of point sensor, fiber splitter, the first optical fiber collimator, light hole, the second optical fiber collimator B, faraday It is reflected back to be formed backwards to pulsed light after polarization apparatus；Or fiber reel of the pulsed light after the fiber switch junction sensor It is reflected back to be formed backwards to pulsed light after fine box, fiber splitter, the first optical fiber collimator, light hole, light reflection mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720315558.8U CN206627127U (en) | 2017-03-29 | 2017-03-29 | Fiber switch junction sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720315558.8U CN206627127U (en) | 2017-03-29 | 2017-03-29 | Fiber switch junction sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206627127U true CN206627127U (en) | 2017-11-10 |
Family
ID=60209147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720315558.8U Active CN206627127U (en) | 2017-03-29 | 2017-03-29 | Fiber switch junction sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206627127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663072A (en) * | 2017-03-29 | 2018-10-16 | 昆山金鸣光电科技有限公司 | Fiber switch junction sensor |
| CN112607361A (en) * | 2020-12-18 | 2021-04-06 | 山东超晟光电科技有限公司 | Comprehensive protection system of optical fiber passive conveyor |
-
2017
- 2017-03-29 CN CN201720315558.8U patent/CN206627127U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663072A (en) * | 2017-03-29 | 2018-10-16 | 昆山金鸣光电科技有限公司 | Fiber switch junction sensor |
| CN112607361A (en) * | 2020-12-18 | 2021-04-06 | 山东超晟光电科技有限公司 | Comprehensive protection system of optical fiber passive conveyor |
| CN112607361B (en) * | 2020-12-18 | 2021-07-20 | 山东超晟光电科技有限公司 | Comprehensive protection system of optical fiber passive conveyor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205861076U (en) | Transmission-type switch sensor based on optical fiber | |
| CN103257424B (en) | Fiber cable cross connection box monitoring device and monitoring system thereof | |
| US9544049B2 (en) | Fibre network comprising sensors | |
| CN206627127U (en) | Fiber switch junction sensor | |
| EP2690802B1 (en) | System for the certification of a passive optical network and for the detection of problems and faults in the last fibre legs | |
| US20070047894A1 (en) | Outside plant enclosure with pivoting fiber trays | |
| CN102035599A (en) | FTTH passive optical link monitoring system and method | |
| TW201315170A (en) | Light frequency domain reflective optical network test method | |
| CN102142893A (en) | Reflectance anomaly detection method, system and device for optical distribution network | |
| BR112012004398B1 (en) | WAVE LENGTH DIVISION MULTIPLEXATION FILTER | |
| CN206656743U (en) | Fiber switch sensing network | |
| CN107179558A (en) | A kind of monitoring device, system and method | |
| CN205861075U (en) | Reflective switch sensor based on optical fiber | |
| CN201918994U (en) | FTTH (Fiber To The Home) passive optical link monitoring system | |
| CN201878147U (en) | Passive optical network (PON) access network optical cable fault on-line monitor | |
| EP2629128A1 (en) | Fiber optic distribution device | |
| CN108663072A (en) | Fiber switch junction sensor | |
| CN104933785B (en) | A kind of fiber cable cross connection box Gate-ban Monitoring System and method | |
| CN202103671U (en) | Optical access network link two-dimensional optical orthogonal-code monitoring system | |
| CN102819886B (en) | Access control system for outdoor optical cable splice box | |
| CN108663073A (en) | Fiber switch sensing network | |
| CN102447511A (en) | Light path tester | |
| CN106506069A (en) | Optical line terminal, optical transceiver module, system and optical fiber detecting method | |
| CN107314886A (en) | A kind of pulsed light fiber switch condition detection method | |
| CN216673203U (en) | Passive optical network system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |