CN106487442A - A kind of fast fibre detecting system - Google Patents
A kind of fast fibre detecting system Download PDFInfo
- Publication number
- CN106487442A CN106487442A CN201610613221.5A CN201610613221A CN106487442A CN 106487442 A CN106487442 A CN 106487442A CN 201610613221 A CN201610613221 A CN 201610613221A CN 106487442 A CN106487442 A CN 106487442A
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- China
- Prior art keywords
- signal
- controller
- detecting system
- laser instrument
- photodetector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
Abstract
A kind of present invention 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.The present invention can realize a large amount of collections of high-speed real-time, even in strong electromagnetic and extremely severe working environment, can complete the real-time data acquisition of high speed, and functional reliability, stability are high.
Description
Technical field
The invention belongs to network communication technology field, one kind can be remote in particular to be related to a kind of fast fibre detecting system
Range monitoring fiber plant quality, automatic, highly reliable fast fibre detecting system.
Background technology
At present, with the fast development of network service, using Fibre Optical Communication Technology communicated greatly universal, but right
Particularly important in the monitoring of fiber optic communication, in current optical fiber measurement, the loss of optical fiber mainly 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, enable to decades-long engineering structure contiguous network communication and be possibly realized；But
How effectively to ensure that the reliability to optical fiber telecommunications system, stability are monitored, be all the time one have to be solved
Technical barrier.
Although, the monitoring system of conventional fiber optic communication also can carry out certain monitoring, detection；But, conventional light
The monitoring system of fiber communication is difficult to complete a large amount of real-time data acquisitions, and the measurement error brought can be accumulated in test result, shadow
Ring the quality of test.
Content of the invention
The present invention is aiming at the problems referred to above, makes up the deficiencies in the prior art, provides a kind of fast fibre detecting system；This
Invention can realize a large amount of collections of high-speed real-time, even in strong electromagnetic and extremely severe working environment,
The real-time data acquisition of high speed can be completed, functional reliability, stability are high.
For realizing the above-mentioned purpose of the present invention, the present invention 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, pulse
Controller, photodetector, operational amplifier, A/D data acquisition circuit, FPGA master controller, SRAM memory, ARM control
Device, 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, the signal transmitting of photodetector
The input of end concatenation operation amplifier, the outfan of operational amplifier connects the input of A/D data acquisition circuit, A/D number
Outfan according to Acquisition Circuit connects SRAM memory, and 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 preferred embodiment of the present invention, described laser instrument uses LD laser diode.
As another kind of preferred version of the present invention, described photodetector uses light sensitive diode.
As another kind of preferred version of the present invention, the signal of described optical networking is injected and is provided with end and signal ejecting end
Directional coupler, the signal of described optical networking injects end, signal ejecting end pass through described directional coupler respectively with laser instrument
Signal transmitting terminal be connected, the signal receiving end of photodetector is connected.
As another kind of preferred version of the present invention, described A/D data acquisition circuit 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 signal is defeated
Enter to hold the outfan of concatenation operation amplifier, the signal output part of described d type flip flop AVC16374 connects SRAM memory.
As another kind of preferred version of the present invention, the chip that described FPGA master controller adopts is EP2C25Q240C8.
As another kind of preferred version of the present invention, the chip that described ARM controller adopts is LPC2478FBD208.
The invention has the beneficial effects as follows：The light source that the present invention is sent by laser instrument sends light pulse repeatedly to tested optical fiber
To realize measuring, described impulse controller can amplify the pulse signal that FPGA master controller sends to drive laser instrument to produce
Laser pulse；Described FPGA master controller can realize a large amount of collections and the calculation process of high-speed real-time, even exists
The real-time data acquisition of high speed, functional reliability, stability in strong electromagnetic and extremely severe working environment, can be completed
High；And by described ARM controller and LCD display, can be with remote monitoring fiber plant quality, automatic, Gao Ke
Lean on, degree of accuracy high.
Brief description
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for description, the reality with the present invention
Apply example and be used for explaining the present invention together, be not construed as limiting the invention.
Fig. 1 is a kind of attachment structure schematic block diagram of present invention fast fibre detecting system.
Fig. 2 is that a kind of circuit composition attachment structure of the A/D data acquisition circuit of present invention fast fibre detecting system is shown
Meaning block diagram.
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
In conjunction with shown in accompanying drawing, a kind of present invention fast fibre detecting system includes optical networking, and its structural feature is：Also include
Laser instrument, impulse controller, photodetector, operational amplifier, A/D data acquisition circuit, FPGA master controller, SRAM storage
Device, ARM controller, LCD display.
The pulse signal that FPGA master controller sends can be amplified sharp to drive laser instrument to produce by described impulse controller
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, the signal transmitting of photodetector
The input of end concatenation operation amplifier, the outfan of operational amplifier connects the input of A/D data acquisition circuit, A/D number
Outfan according to Acquisition Circuit connects SRAM memory, and 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 of the present invention uses LD laser diode；Described LD laser diode, as light source, can be sent out
Penetrate the laser pulse of two kinds of wavelength of 1310nm, 1550nm.
Photodetector of the present invention uses light sensitive diode；Described light sensitive diode can be by light pulse signal
It is converted into the signal of telecommunication, the signal of telecommunication after conversion is re-fed into operational amplifier and is processed.
The signal of optical networking of the present invention is injected and is provided with directional coupler on end and signal ejecting end, described optical networking
Signal inject end, signal ejecting end is connected with the signal transmitting terminal of laser instrument respectively by described directional coupler, photoelectricity
The signal receiving end of detector is connected.
As shown in Fig. 2 the circuit composition attachment structure schematic block diagram of the A/D data acquisition circuit for the present invention；Described A/D
Data acquisition circuit is sequentially connected by AD8138 single-ended transfer difference chip, 10 ADC chips of AD9214, d type flip flop AVC16374
Composition；The outfan of described AD8138 single-ended transfer difference chip signal input concatenation operation amplifier, described d type flip flop
The signal output part of AVC16374 connects SRAM memory.
The chip that FPGA master controller of the present invention adopts is EP2C25Q240C8.
The chip that ARM controller of the present invention adopts is LPC2478FBD208.
Illustrate operation principle in conjunction with technical scheme with accompanying drawing：The electric pulse being produced by FPGA master controller, drives
Dynamic light source is that laser instrument produces light pulse, injects testing fiber net through directional coupler；Inject the light pulse of optical networking, due to light
Fiber material property inherently can produce Rayleigh scattering light, can produce Fresnel reflection together with running into out-of-flatness fiber end face
Light, is reflected back directional coupler together, is incident upon photodetector, be converted into electric pulse；The signal of telecommunication after conversion is put via computing
Send into FPGA master controller after big device and the process of A/D data acquisition circuit, form the loop repeatedly transmitted, collect and carry out
Amplify and average treatment；Finally, the data after processing ARM controller via LCD display is shown in the form of waveform.
Finally it should be noted that：The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein some technical characteristics.
All any modification, equivalent substitution and improvement within the spirit and principles in the present invention, made etc., should be included in the present invention's
Within protection domain.
Claims (7)
1. a kind of 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.
2. a kind of fast fibre detecting system according to claim 1 is it is characterised in that described laser instrument uses LD
Laser diode.
3. a kind of fast fibre detecting system according to claim 1 it is characterised in that described photodetector adopt
It is light sensitive diode.
4. a kind of fast fibre detecting system according to claim 1 is it is characterised in that the signal of described optical networking is injected
It is provided with directional coupler, the signal of described optical networking injects end, signal ejecting end by described on end and signal ejecting end
Directional coupler is connected with the signal transmitting terminal of laser instrument respectively, the signal receiving end of photodetector is connected.
5. a kind of fast fibre detecting system according to claim 1 is it is characterised in that described FPGA master controller adopts
Chip be EP2C25Q240C8.
6. a kind of fast fibre detecting system according to claim 1 is it is characterised in that described A/D data acquisition circuit
It is sequentially connected and 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.
7. a kind of fast fibre detecting system according to claim 1 it is characterised in that described ARM controller adopt
Chip is LPC2478FBD208.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610613221.5A CN106487442A (en) | 2016-07-31 | 2016-07-31 | A kind of fast fibre detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610613221.5A CN106487442A (en) | 2016-07-31 | 2016-07-31 | A kind of fast fibre detecting system |
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| CN106487442A true CN106487442A (en) | 2017-03-08 |
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| CN201610613221.5A Pending CN106487442A (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 |
|---|---|---|---|---|
| CN106487443A (en) * | 2016-08-18 | 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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| CN1330266A (en) * | 2000-06-27 | 2002-01-09 | 华为技术有限公司 | High-speed data acquisition and real-time accumulation circuit for light-time domain reflectometer |
| CN204145500U (en) * | 2014-09-19 | 2015-02-04 | 武汉光谷互连科技有限公司 | Optical fiber barrier finder |
| WO2015180786A1 (en) * | 2014-05-30 | 2015-12-03 | Omnisens Sa | Optical process and optical device, allowing to avoid unwanted nonlinear effects in an optical fiber |
| CN204928828U (en) * | 2015-07-08 | 2015-12-30 | 湖南高速铁路职业技术学院 | Fiber communication detector |
| CN205847273U (en) * | 2016-07-31 | 2016-12-28 | 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 CN201610613221.5A patent/CN106487442A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330266A (en) * | 2000-06-27 | 2002-01-09 | 华为技术有限公司 | High-speed data acquisition and real-time accumulation circuit for light-time domain reflectometer |
| WO2015180786A1 (en) * | 2014-05-30 | 2015-12-03 | Omnisens Sa | Optical process and optical device, allowing to avoid unwanted nonlinear effects in an optical fiber |
| CN204145500U (en) * | 2014-09-19 | 2015-02-04 | 武汉光谷互连科技有限公司 | Optical fiber barrier finder |
| CN204928828U (en) * | 2015-07-08 | 2015-12-30 | 湖南高速铁路职业技术学院 | Fiber communication detector |
| CN205847273U (en) * | 2016-07-31 | 2016-12-28 | 苏州英克迈信息科技有限公司 | A kind of fast fibre detecting system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487443A (en) * | 2016-08-18 | 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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Application publication date: 20170308 |