CN205847273U - A kind of fast fibre detecting system - Google Patents
A kind of fast fibre detecting system Download PDFInfo
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- CN205847273U CN205847273U CN201620814814.3U CN201620814814U CN205847273U CN 205847273 U CN205847273 U CN 205847273U CN 201620814814 U CN201620814814 U CN 201620814814U CN 205847273 U CN205847273 U CN 205847273U
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- signal
- controller
- detecting system
- laser instrument
- photodetector
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- Arrangements For Transmission Of Measured Signals (AREA)
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Abstract
This utility model one fast fibre detecting system, including optical networking, its structural feature is: also include laser instrument, impulse controller, photodetector, operational amplifier, A/D data acquisition circuit, FPGA master controller, SRAM memory, ARM controller, LCD display；The signal of optical networking is injected end and is connected with the signal transmitting terminal of laser instrument, and the signal receiving end of laser instrument is connected with the signal output part of impulse controller, and the signal input part of impulse controller is connected with the signal output part of FPGA master controller；The signal ejecting end of optical networking connects the signal receiving end of photodetector, the input of the signal transmitting terminal concatenation operation amplifier of photodetector；FPGA master controller is also connected with ARM controller, and the signal output part of ARM controller connects LCD display.This utility model can realize a large amount of collections of high-speed real-time, even if in strong electromagnetic and the most severe working environment, can complete real-time data acquisition at a high speed, and functional reliability, stability are high.
Description
Technical field
This utility model belongs to network communication technology field, and relating to a kind of fast fibre detecting system one in particular can
With remotely monitoring fiber plant quality, automatic, highly reliable fast fibre detecting system.
Background technology
At present, along with the fast development of network service, utilize that Fibre Optical Communication Technology communicates is greatly universal, but right
Particularly important in the monitoring of fiber optic communication, in current optical fiber measurement, the loss of optical fiber to be measured and breakpoint.With tradition
Electrical communication compare, Fibre Optical Communication Technology has that low cost, electromagnetism interference, accuracy and sensitivity be high, fiber transmission attenuation
Extremely low, the outstanding advantages such as long transmission distance, it is possible to decades-long engineering structure contiguous network communication is possibly realized；But
The most effectively ensureing that the reliability to optical fiber telecommunications system, stability are monitored, be one has to be solved all the time
Technical barrier.
Although, the monitoring system of conventional fiber optic communication also is able to carry out certain monitoring, detection；But, conventional light
The monitoring system of fiber communication has been difficult to a large amount of real-time data acquisition, and the measurement error brought can be accumulated in test result, shadow
Ring the quality of test.
Summary of the invention
This utility model is aiming at the problems referred to above, makes up the deficiencies in the prior art, it is provided that a kind of fast fibre detection is
System；This utility model can realize a large amount of collections of high-speed real-time, even if in strong electromagnetic and the most severe work
Making in environment, can complete real-time data acquisition at a high speed, functional reliability, stability are high.
For realizing above-mentioned purpose of the present utility model, this utility model adopts the following technical scheme that,
A kind of fast fibre detecting system, including optical networking, its structural feature is: also include laser instrument, pulse generator,
Impulse controller, photodetector, operational amplifier, A/D data acquisition circuit, FPGA master controller, SRAM memory, ARM
Controller, LCD display.
The signal of described optical networking is injected end and is connected with the signal transmitting terminal of laser instrument, the signal receiving end of laser instrument and arteries and veins
The signal output part rushing controller is connected, the signal output part phase of the signal input part of impulse controller and FPGA master controller
Even, the signal input part of FPGA master controller is connected with the signal output part of pulse generator.
The signal ejecting end of described optical networking connects the signal receiving end of photodetector, and the signal of photodetector is launched
The input of end concatenation operation amplifier, the outfan of operational amplifier connects the input of A/D data acquisition circuit, A/D number
Connecting SRAM memory according to the outfan of Acquisition Circuit, SRAM memory is connected with FPGA master controller；Described FPGA main control
Device is also connected with ARM controller, and the signal output part of ARM controller connects LCD display.
As a kind of preferred version of the present utility model, described laser instrument uses LD laser diode.
As another kind of preferred version of the present utility model, described photodetector uses light sensitive diode.
As another kind of preferred version of the present utility model, the signal of described optical networking is injected end and is set on signal ejecting end
Being equipped with directional coupler, the signal of described optical networking injects end, signal ejecting end by described directional coupler respectively with sharp
The signal transmitting terminal of light device is connected, the signal receiving end of photodetector is connected.
As another kind of preferred version of the present utility model, described A/D data acquisition circuit is by AD8138 single-ended transfer difference
Chip, 10 ADC chips of AD9214, d type flip flop AVC16374 are sequentially connected composition；Described AD8138 single-ended transfer difference chip
The outfan of signal input part concatenation operation amplifier, the signal output part of described d type flip flop AVC16374 connects SRAM storage
Device.
As another kind of preferred version of the present utility model, the chip that described FPGA master controller uses is
EP2C25Q240C8。
As another kind of preferred version of the present utility model, the chip that described ARM controller uses is
LPC2478FBD208。
The beneficial effects of the utility model are: the light source that this utility model is sent by laser instrument is sent out repeatedly to tested optical fiber
Sending light pulse to realize measuring, the pulse signal that FPGA master controller can be sent by described impulse controller amplifies to drive sharp
Light device produces laser pulse；Described FPGA master controller can realize a large amount of of high-speed real-time and gather and calculation process,
Even if in strong electromagnetic and the most severe working environment, real-time data acquisition at a high speed, reliable operation can be completed
Property, stability high；And by described ARM controller and LCD display, can remotely monitor fiber plant quality,
Automatically, highly reliable, degree of accuracy is high.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for description, with this practicality
Novel embodiment is used for explaining this utility model together, is not intended that restriction of the present utility model.
Fig. 1 is the attachment structure schematic block diagram of this utility model a kind of fast fibre detecting system.
Fig. 2 is that the circuit composition of the A/D data acquisition circuit of this utility model a kind of fast fibre detecting system connects knot
Structure schematic block diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain this utility model, being not used to limit this utility model.
Shown in accompanying drawing, this utility model one fast fibre detecting system includes optical networking, and its structural feature is: also
Including laser instrument, impulse controller, photodetector, operational amplifier, A/D data acquisition circuit, FPGA master controller, SRAM
Memorizer, ARM controller, LCD display.
The pulse signal that FPGA master controller can be sent by described impulse controller amplifies to drive laser instrument to produce sharp
Light pulse.
The signal of described optical networking is injected end and is connected with the signal transmitting terminal of laser instrument, the signal receiving end of laser instrument and arteries and veins
The signal output part rushing controller is connected, the signal output part phase of the signal input part of impulse controller and FPGA master controller
Even.
The signal ejecting end of described optical networking connects the signal receiving end of photodetector, and the signal of photodetector is launched
The input of end concatenation operation amplifier, the outfan of operational amplifier connects the input of A/D data acquisition circuit, A/D number
Connecting SRAM memory according to the outfan of Acquisition Circuit, SRAM memory is connected with FPGA master controller；Described FPGA main control
Device is also connected with ARM controller, and the signal output part of ARM controller connects LCD display.
Laser instrument described in the utility model uses LD laser diode；Described LD laser diode as light source,
The laser pulse of two kinds of wavelength of 1310nm, 1550nm can be launched.
Photodetector described in the utility model uses light sensitive diode；Described light sensitive diode can be by light pulse
Signal is converted into the signal of telecommunication, and the signal of telecommunication after conversion is re-fed into operational amplifier and processes.
The signal of optical networking described in the utility model is injected end and is provided with directional coupler, described light on signal ejecting end
The signal of fibre web injects end, signal ejecting end is connected with the signal transmitting terminal of laser instrument respectively by described directional coupler,
The signal receiving end of photodetector is connected.
As in figure 2 it is shown, be the circuit composition attachment structure schematic block diagram of A/D data acquisition circuit of the present utility model；Institute
State A/D data acquisition circuit to be depended on by AD8138 single-ended transfer difference chip, 10 ADC chips of AD9214, d type flip flop AVC16374
Secondary it is connected to form；The outfan of described AD8138 single-ended transfer difference chip signal input concatenation operation amplifier, described D triggers
The signal output part of device AVC16374 connects SRAM memory.
The chip that FPGA master controller described in the utility model uses is EP2C25Q240C8.
The chip that ARM controller described in the utility model uses is LPC2478FBD208.
In conjunction with the technical solution of the utility model and accompanying drawing elaboration operation principle: the electric arteries and veins produced by FPGA master controller
Punching, drives the i.e. laser instrument of light source to produce light pulse, injects testing fiber net through directional coupler；The light pulse of incident light fibre web,
Owing to fiber optic materials character inherently can produce Rayleigh scattering light, Fresnel can be produced together with running into out-of-flatness fiber end face
Reflection light, is reflected back directional coupler together, is incident upon photodetector, be converted into electric pulse；The signal of telecommunication after conversion is via fortune
Calculate after amplifier and A/D data acquisition circuit process and send into FPGA master controller, formed repeatedly transmit a loop, collect also
It is amplified and average treatment；Finally, the data after ARM controller being processed via LCD display show with the form of waveform
Out.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this
Utility model, although being described in detail this utility model with reference to previous embodiment, for those skilled in the art
For, the technical scheme described in foregoing embodiments still can be modified by it, or to wherein portion of techniques feature
Carry out equivalent.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (7)
1. a fast fibre detecting system, including optical networking, it is characterised in that: also include laser instrument, impulse controller, photoelectricity
Detector, operational amplifier, A/D data acquisition circuit, FPGA master controller, SRAM memory, ARM controller, LCD show
Device；The signal of described optical networking is injected end and is connected with the signal transmitting terminal of laser instrument, the signal receiving end of laser instrument and pulse control
The signal output part of device processed is connected, and the signal input part of impulse controller is connected with the signal output part of FPGA master controller；Institute
The signal ejecting end stating optical networking connects the signal receiving end of photodetector, the signal transmitting terminal concatenation operation of photodetector
The input of amplifier, the outfan of operational amplifier connects the input of A/D data acquisition circuit, A/D data acquisition circuit
Outfan connect SRAM memory, SRAM memory is connected with FPGA master controller；Described FPGA master controller is also controlled with ARM
Device processed is connected, and the signal output part of ARM controller connects LCD display.
A kind of fast fibre detecting system the most according to claim 1, it is characterised in that described laser instrument uses LD
Laser diode.
A kind of fast fibre detecting system the most according to claim 1, it is characterised in that described photodetector uses
It it is light sensitive diode.
A kind of fast fibre detecting system the most according to claim 1, it is characterised in that the signal of described optical networking is injected
Being provided with directional coupler on end and signal ejecting end, the signal of described optical networking injects end, signal ejecting end by described
Directional coupler is connected with the signal transmitting terminal of laser instrument respectively, the signal receiving end of photodetector is connected.
A kind of fast fibre detecting system the most according to claim 1, it is characterised in that described FPGA master controller uses
Chip be EP2C25Q240C8.
A kind of fast fibre detecting system the most according to claim 1, it is characterised in that described A/D data acquisition circuit
It is sequentially connected is formed by AD8138 single-ended transfer difference chip, 10 ADC chips of AD9214, d type flip flop AVC16374；Described
The outfan of AD8138 single-ended transfer difference chip signal input concatenation operation amplifier, the letter of described d type flip flop AVC16374
Number outfan connects SRAM memory.
A kind of fast fibre detecting system the most according to claim 1, it is characterised in that described ARM controller uses
Chip is LPC2478FBD208.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814814.3U CN205847273U (en) | 2016-07-31 | 2016-07-31 | A kind of fast fibre detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620814814.3U CN205847273U (en) | 2016-07-31 | 2016-07-31 | A kind of fast fibre detecting system |
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| CN205847273U true CN205847273U (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620814814.3U Expired - Fee Related CN205847273U (en) | 2016-07-31 | 2016-07-31 | A kind of fast fibre detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487442A (en) * | 2016-07-31 | 2017-03-08 | 苏州英克迈信息科技有限公司 | A kind of fast fibre detecting system |
-
2016
- 2016-07-31 CN CN201620814814.3U patent/CN205847273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487442A (en) * | 2016-07-31 | 2017-03-08 | 苏州英克迈信息科技有限公司 | A kind of fast fibre detecting system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20170731 |