CN109831248A - The synthesis optical fiber inspection device and method of integrated FC optical fiber link and Network Check - Google Patents
The synthesis optical fiber inspection device and method of integrated FC optical fiber link and Network Check Download PDFInfo
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- CN109831248A CN109831248A CN201910154953.6A CN201910154953A CN109831248A CN 109831248 A CN109831248 A CN 109831248A CN 201910154953 A CN201910154953 A CN 201910154953A CN 109831248 A CN109831248 A CN 109831248A
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Abstract
The invention discloses the synthesis optical fiber inspection device and methods of a kind of integrated FC optical fiber link and Network Check, the device includes optical assembly test module, FC network protocol analysis module and host computer, optical assembly test module and FC network protocol analysis module are connect with host computer respectively, wherein, optical assembly test module includes impulse generator, narrow pulse laser, fiber coupler, 1 × N Multichannel photoswitch, single-photon detector, photon counter and signal generator.The present invention can carry out quality examination and fault location during the production of airborne FC network cable subassembly product, installation operation and working service, according to the multi-channel optical fibre situation in live tested network, multiple tested optical fibers are disposably consecutively connected on 1 × N Multichannel photoswitch of optical assembly test module, and successively detected and recorded, it is completed at the same time the airborne FC network switch and the detection of avionics system device network port network signal transfer functions.
Description
Technical field
The present invention relates to technical field of optical fiber communication more particularly to a kind of synthesis of integrated FC optical fiber link and Network Check
Optical fiber inspection device and method.
Background technique
The Optical Time Domain Reflectometer (Optical Time Domain Reflectomete, OTDR) of high-precision multichannel,
Be using optical pulse transmit in a fiber when caused by Rayleigh scattering and Fresnel reflection backwards to signal and made of
The optoelectronic integration instrument of accurate measurement, it is widely used in the construction of fibre circuit, in maintenance, can carry out the length of optical fiber
The a series of measurement work such as degree, transmission attenuation, connector decaying and fault location, as shown in Figure 1.
For using the fibre-optic transmission system (FOTS) on aircraft, naval vessel, since fiber optic network distance is shorter, connect more multiple
It is miscellaneous, it is checked for the rapid and simple optical fiber state to airborne avionics, ship's network fibre circuit, realizes quickly inspection and event
Barrier positioning, needs high-precision OTDR detector, it is desirable that can be pin-pointed to the fault point of Centimeter Level, more so as to on-call maintenance
It changes, guarantees system reliable and stable work and aircraft, warship safety operation.
It is illustrated in figure 2 high-precision multichannel ODTR detector functional block diagram, the design of high-precision multichannel OTDR detector has more
Road optical fiber interface may be used to the tested optical fiber all the way in external fiber optic network per optical fiber interface all the way, and multichannel interface is connected to
On the 1*N photoswitch of gauge internal, that of current switch connection is all arranged in N=2,4,8,16,32 etc. when instrument is tested every time
Road interface generates laser narrow pulse signal by impulse generator, after laser driver amplifies then according to OTDR detection process
Be input in coupler, then be output in photoswitch through coupler, according to the switch number of setting, the light pulse signal of sending into
Enter to the n-th road optical fiber interface of setting, fiber-optic signal enters in tested optical fiber after optical fiber interface, while reversed through tested optical fiber
The backscattering come, reflection signal are sent back after optical fiber interface is connected with the n-th road photoswitch of setting, reverse signal enters
In coupler, which is output in single-photon detector (SPDA) by coupling after coupler, and single-photon detector will be visited
The reversed dim light subsignal measured is sent in counter after photoelectric conversion is at electric signal, is synchronized and is carried out at counting according to system
After reason, finally by count results, unified display, can be accurate according to reverse signal on indicator screen after system storage processing
Connector, transmission attenuation, fault point in detection fiber route etc..It is surveyed in (the n-th tunnel) the tested optical fiber route all the way for completing configuration
After examination, can carry out configuration again performs handover to switch on other (road m) all the way, continues light according to process above
Fine wireline inspection, the process can be arranged by software by instrument system, automatically configure switching, successively dock all the way
The tested optical fiber route entered is detected.
It is illustrated in figure 3 current high-precision multichannel OTDR detection device detection fiber functional schematic, detection device is only
The fault detection that can be carried out physical fiber link, there is no fiber channel (Fibre Channel, FC) Network Check functions.This
Outside, for fiber optic network on airborne, naval vessel, the function device connected on network is more, and fiber optic network length is smaller, fiber optic network group
Net is complicated, and when carrying out equipment detection maintenance at the scene every time, one optical fiber interface of one-time detection needs manually to take after having detected again
Lower fibre-optical splice is connected on another tested optical fiber interface, brings complicated for operation, the low problem of detection efficiency.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes the synthesis optical fiber inspection of a kind of integrated FC optical fiber link and Network Check
Device, including optical assembly test module, FC network protocol analysis module and host computer, the optical assembly test module and FC network
Protocol-analysis model is connect with host computer respectively.The optical assembly test module includes impulse generator, narrow pulse laser, light
Fine coupler, 1 × N Multichannel photoswitch, single-photon detector, photon counter and signal generator, the impulse generator
Signal output end is separately connected the signal input part of narrow pulse laser, single-photon detector and photon counter, the narrow arteries and veins
The signal input part of the signal output end connection fiber coupler of laser is rushed, the fiber coupler is bi-directionally connected 1 × N multichannel
1 terminal of photoswitch, the N terminal of 1 × N Multichannel photoswitch are bi-directionally connected tested optical fiber, the letter of the single-photon detector
Number input terminal is also connected with the signal output end of fiber coupler, the single-photon detector, photon counter and signal generator
It is sequentially connected respectively, the data input pin of the data output end connection host computer of the signal generator.The FC network protocol
Analysis module includes binary channels FC network agreement artificial card, the binary channels FC network agreement artificial card by PCI-E interface with
Host computer connection.
As an optimization, the binary channels FC network agreement artificial card includes SFP optical transceiver module, serial transceiver mould
Block, fiber channel protocol module, automatic-answering back device module, data cache module, PCI-E interface management module, PCI-E X4 interface
And ARM control module, the SFP optical transceiver module, serial transceiver module, fiber channel protocol module, automatic-answering back device mould
Block, data cache module, PCI-E interface management module, PCI-E X4 interface and host computer are successively bi-directionally connected respectively.
As an optimization, the data cache module includes FPGA inner buffer and external SRAM.
As an optimization, the binary channels FC network agreement artificial card further includes two optical fiber interfaces, the optical fiber interface
It is connected to the network by optical patchcord and tested FC.
As an optimization, the optical patchcord is the LC optical patchcord of 850nm.
As an optimization, further including power conversion module, the power output end of the power conversion module is electrically connected
The power input of optical assembly test module and host computer.
The present invention also proposes the synthesis optical fiber inspection method of a kind of integrated FC optical fiber link and Network Check, including following step
It is rapid:
S1. impulse generator generates Ultra-short pulse signal, and laser signal is output to fiber coupler by narrow pulse laser；
S2. coupler is output to all the way in 1 × N Multichannel photoswitch, then is output in tested optical fiber through interface, is tested simultaneously
The signal that fiber reflection is returned enters fiber coupler through 1 × N Multichannel photoswitch, then is output to single photon by fiber coupler
In detector；
S3. single-photon detector carries out single photon detection and exports electric signal and enter in photon counter module；
S4. photon counter, by judge impulse generator output pulse and single-photon detector output signal it
Between time, determine backscattering and reflect signal reach time, and then determine testing fiber in failure occur position；
S5. the small-signal that signal generator is exported according to counter is amplified with after analog-to-digital conversion process, is output to
Host computer；
S6. host computer and FC network protocol analysis module carry out signal transmission, and FC network protocol analysis module is realized to every
The detection of the network signal transfer function of tested optical fiber all the way.
The beneficial effects of the present invention are: the present invention can be operated in production, the installation of airborne FC network cable subassembly product
It will be more according to the multi-channel optical fibre situation in live tested network with progress quality examination and fault location during working service
A tested optical fiber is disposably consecutively connected on 1 × N Multichannel photoswitch of optical assembly test module, and successively carry out detection with
Record is completed at the same time the airborne FC network switch and the detection of avionics system device network port network signal transfer functions.
Detailed description of the invention
Fig. 1 is OTDR for fiber transmission performance, malfunction monitoring schematic diagram；
Fig. 2 is high-precision multichannel ODTR detector functional block diagram；
Fig. 3 is current High-precision O TDR detector fiber laser arrays functional schematic；
Fig. 4 is synthesis optical fiber inspection apparatus module structural block diagram of the invention；
Fig. 5 is binary channels FC network agreement artificial card internal module structural schematic diagram.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually here
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations.Therefore, with
Under the range of claimed invention is not intended to limit to the detailed description of the embodiment of the present invention provided in the accompanying drawings,
But it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not making wound
Every other embodiment obtained under the premise of the property made is worked, shall fall within the protection scope of the present invention.
Embodiment 1
As shown in figure 4, the synthesis optical fiber inspection device of a kind of integrated FC optical fiber link and Network Check, including optical assembly are surveyed
Die trial block, FC network protocol analysis module and host computer, optical assembly test module and FC network protocol analysis module respectively with it is upper
Position machine connection.Wherein, optical assembly test module includes impulse generator, narrow pulse laser, fiber coupler, 1 × N multichannel light
The signal output end of switch, single-photon detector, photon counter and signal generator, impulse generator is separately connected burst pulse
The signal output end of the signal input part of laser, single-photon detector and photon counter, narrow pulse laser connects optical fiber
The signal input part of coupler, fiber coupler are bi-directionally connected 1 terminal of 1 × N Multichannel photoswitch, the N of 1 × N Multichannel photoswitch
Terminal is bi-directionally connected tested optical fiber, and the signal input part of single-photon detector is also connected with the signal output end of fiber coupler, single
Photon detector, photon counter and signal generator are sequentially connected respectively, and the data output end connection of signal generator is upper
The data input pin of machine.
In addition, FC network protocol analysis module includes binary channels FC network agreement artificial card, binary channels FC network protocol is imitative
True card is connect by PCI-E interface with host computer.
Embodiment 2
The present embodiment is on the basis of embodiment 1:
As shown in figure 5, a kind of synthesis optical fiber inspection method of integrated FC optical fiber link and Network Check, including following step
It is rapid:
S1. impulse generator generates Ultra-short pulse signal, and laser signal is output to fiber coupler by narrow pulse laser；
S2. coupler is output to all the way in 1 × N Multichannel photoswitch, then is output in tested optical fiber through interface, is tested simultaneously
The signal that fiber reflection is returned enters fiber coupler through 1 × N Multichannel photoswitch, then is output to single photon by fiber coupler
In detector；
S3. single-photon detector carries out single photon detection and exports electric signal and enter in photon counter module；
S4. photon counter, by judge impulse generator output pulse and single-photon detector output signal it
Between time, determine backscattering and reflect signal reach time, and then determine testing fiber in failure occur position；
S5. the small-signal that signal generator is exported according to counter is amplified with after analog-to-digital conversion process, is output to
Host computer；
S6. host computer and FC network protocol analysis module carry out signal transmission, and FC network protocol analysis module is realized to every
The detection of the network signal transfer function of tested optical fiber all the way.
Embodiment 3
The present embodiment is on the basis of embodiment 1:
Binary channels FC network agreement artificial card includes SFP optical transceiver module, serial transceiver module, fiber channel protocol mould
Block, automatic-answering back device module, data cache module, PCI-E interface management module, PCI-E X4 interface and ARM control module,
SFP optical transceiver module, serial transceiver module, fiber channel protocol module, automatic-answering back device module, data cache module, PCI-E
Interface administration module, PCI-E X4 interface and host computer are successively bi-directionally connected respectively.
Embodiment 4
The present embodiment is on the basis of embodiment 3:
Data cache module includes FPGA inner buffer and external SRAM.
Embodiment 5
The present embodiment is on the basis of embodiment 3:
Binary channels FC network agreement artificial card further includes two optical fiber interfaces, and optical fiber interface passes through optical patchcord and tested FC
Network connection.More specifically, optical patchcord is the LC optical patchcord of 850nm.
Embodiment 6
The present embodiment is on the basis of embodiment 3:
Binary channels FC network agreement artificial card further includes power conversion module, the power output end difference of power conversion module
It is electrically connected the power input of optical assembly test module and host computer.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form should not be regarded as an exclusion of other examples, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection scope of appended claims of the present invention
It is interior.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " setting ", " peace
Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be wired connection, be also possible to be wirelessly connected.
Claims (7)
1. the synthesis optical fiber inspection device of a kind of integrated FC optical fiber link and Network Check, which is characterized in that surveyed including optical assembly
Die trial block, FC network protocol analysis module and host computer, the optical assembly test module and FC network protocol analysis module difference
It is connect with host computer；
The optical assembly test module include impulse generator, narrow pulse laser, fiber coupler, 1 × N Multichannel photoswitch,
The signal output end of single-photon detector, photon counter and signal generator, the impulse generator is separately connected burst pulse
The signal input part of laser, single-photon detector and photon counter, the signal output end connection of the narrow pulse laser
The signal input part of fiber coupler, the fiber coupler are bi-directionally connected 1 terminal of 1 × N Multichannel photoswitch, and the 1 × N is more
The N terminal of road photoswitch is bi-directionally connected tested optical fiber, and the signal input part of the single-photon detector is also connected with fiber coupler
Signal output end, the single-photon detector, photon counter and signal generator be sequentially connected respectively, and the signal occurs
The data input pin of the data output end connection host computer of device；
The FC network protocol analysis module includes binary channels FC network agreement artificial card, the binary channels FC network agreement artificial
Card is connect by PCI-E interface with host computer.
2. the synthesis optical fiber inspection device of a kind of integrated FC optical fiber link and Network Check according to claim 1, special
Sign is that the binary channels FC network agreement artificial card includes SFP optical transceiver module, serial transceiver module, optical-fibre channel association
It discusses module, automatic-answering back device module, data cache module, PCI-E interface management module, PCI-E X4 interface and ARM and controls mould
Block, the SFP optical transceiver module, serial transceiver module, fiber channel protocol module, automatic-answering back device module, data buffer storage mould
Block, PCI-E interface management module, PCI-E X4 interface and host computer are successively bi-directionally connected respectively.
3. the synthesis optical fiber inspection device of a kind of integrated FC optical fiber link and Network Check according to claim 2, special
Sign is that the data cache module includes FPGA inner buffer and external SRAM.
4. the synthesis optical fiber inspection device of a kind of integrated FC optical fiber link and Network Check according to claim 1, special
Sign is that the binary channels FC network agreement artificial card further includes two optical fiber interfaces, and the optical fiber interface passes through optical patchcord
It is connected to the network with tested FC.
5. the synthesis optical fiber inspection device of a kind of integrated FC optical fiber link and Network Check according to claim 4, special
Sign is that the optical patchcord is the LC optical patchcord of 850nm.
6. the synthesis optical fiber inspection device of a kind of integrated FC optical fiber link and Network Check according to claim 1, special
Sign is, further includes power conversion module, and the power output end of the power conversion module is electrically connected optical assembly test mould
The power input of block and host computer.
7. a kind of synthesis optical fiber inspection method of integrated FC optical fiber link and Network Check as described in claim 1, feature
It is, comprising the following steps:
S1. impulse generator generates Ultra-short pulse signal, and laser signal is output to fiber coupler by narrow pulse laser；
S2. coupler is output to all the way in 1 × N Multichannel photoswitch, then is output in tested optical fiber through interface, while tested optical fiber
Reflected signal enters fiber coupler through 1 × N Multichannel photoswitch, then is output to single photon detection by fiber coupler
In device；
S3. single-photon detector carries out single photon detection and exports electric signal and enter in photon counter module；
S4. photon counter, between output pulse and the output signal of single-photon detector by judging impulse generator
Time determines backscattering and reflects the time that signal reaches, and then determines the position that failure occurs in testing fiber；
S5. the small-signal that signal generator is exported according to counter, amplify with after analog-to-digital conversion process, be output to it is upper
Machine；
S6. host computer and FC network protocol analysis module carry out signal transmission, and FC network protocol analysis module is realized to per all the way
The detection of the network signal transfer function of tested optical fiber.
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| CN113364518A (en) * | 2021-05-31 | 2021-09-07 | 贵州电网有限责任公司 | Multi-path optical fiber attenuation test system |
| CN114878141A (en) * | 2022-04-22 | 2022-08-09 | 成都飞机工业（集团）有限责任公司 | Airborne optical cable connection fault positioning method and system |
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