CN206149368U - Pronunciation monitor system based on optical fiber sensing - Google Patents
Pronunciation monitor system based on optical fiber sensing Download PDFInfo
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- CN206149368U CN206149368U CN201621067876.9U CN201621067876U CN206149368U CN 206149368 U CN206149368 U CN 206149368U CN 201621067876 U CN201621067876 U CN 201621067876U CN 206149368 U CN206149368 U CN 206149368U
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- light path
- audio monitoring
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Abstract
The utility model discloses a pronunciation monitor system based on optical fiber sensing, including host computer, transmission core, light path front end module, response core and light path terminal module, the host computer is connected with light path front end module through the transmission core, light path front end module is connected with light path terminal module through the response core, just the response core sets up in the region is monitored to required pronunciation. The utility model discloses can realize that the monitor scope is big, system power dissipation is little, and the target place is passive component, and disguised good purpose extensively is applicable to fields such as prison perimeter monitor, long distance pipeline safety monitor.
Description
Technical field
This utility model is related to sensory field of optic fibre, more particularly to a kind of audio monitoring system based on Fibre Optical Sensor.
Background technology
Fibre Optical Sensor has high sensitivity, anti-interference, simple structure, small volume, light weight and light path flexible, right
Measured medium impact is little, be easy to the advantages of forming network, has a wide range of applications.Fibre Optical Sensor is surveyed for temperature at present
Amount, stress measurement, vibration induction field are more, and audio monitoring manage at the prison, criminal investigation, invasion destruction have and can not replace
The effect in generation, it is more and more important in real world applications.Fibre Optical Sensor is typically by light source, light path sensing unit, opto-electronic conversion mould
Block, signal processing module composition, big with sphere of action, small power consumption, where-used are the spies such as passive device, good concealment
Point, has very big advantage for the application places that audio monitoring scope is wide, audiomonitor is hidden are needed.
In recent years, long-distance pipe occurred repeatedly stealing digging, wrong digging event, shines into huge personnel's property loss, is badly in need of
A set of system for detecting pipeline, for detecting pipe safety.Pipeline is due to cannot apart from long, general electron detector
Solve power supply, a difficult problem for monitored over time.
The content of the invention
In view of the shortcomings of the prior art, the purpose of this utility model is that there is provided a kind of based on Fibre Optical Sensor
Audio monitoring system, in the case of audiomonitor good concealment, it is possible to achieve the whole target monitored of target place.
To achieve these goals, the technical solution adopted in the utility model is such：It is a kind of based on Fibre Optical Sensor
Audio monitoring system, including main frame, transmission core, light path front-end module, sensing core and light path terminal module, the main frame pass through
Transmission core is connected with light path front-end module；The light path front-end module is connected with light path terminal module by sensing core, and described
Sensing core is arranged in required audio monitoring region.
Used as a kind of preferred version, the main frame includes light source module, photoelectric conversion module, audio monitoring module, described
LASER Light Source is transferred to light path front-end module by the first transmission core by light source module；The light path front-end module is passed by second
Heliogram is transferred to photoelectric conversion module by defeated core, and photoelectric conversion module is transferred to audio monitoring module by electrical connection.
Used as a kind of preferred version, the first transmission core is transmitted during core is arranged at same optical cable with second and collectively constitutes biography
Defeated core, and transmission core is single-mode fiber with sensing core.
Used as a kind of preferred version, the light source module is ASE light sources, and sends the laser of 1550nm wavelength.
Used as a kind of preferred version, the photoelectric conversion module includes photodiode, preamplifier, two grades of amplification electricity
Road and for every straight, filtering, some resistance for amplifying and electric capacity.
Used as a kind of preferred version, the audio monitoring module is changed for the voltage signal for exporting photoelectric conversion module
For acoustical signal.
Compared with prior art, the beneficial effects of the utility model：This utility model can realize monitoring scope greatly, system
Small power consumption, target place are passive device, and the purpose of good concealment is widely used in prison circumference monitoring, long-distance pipe
The fields such as safety monitoring.
Description of the drawings
Fig. 1 is system architecture diagram of the present utility model.
Specific embodiment
This utility model is further described with reference to specific embodiment.Following examples are only used for clearly
The technical solution of the utility model is illustrated, and protection domain of the present utility model can not be limited with this.
Embodiment：
As shown in figure 1, a kind of audio monitoring system based on Fibre Optical Sensor, including main frame 1, transmission core, light path front end mould
Block 3, sensing core 4 and light path terminal module 5, the main frame 1 are connected with light path front-end module 3 by transmitting core；The light path
Front-end module 3 is connected with light path terminal module 5 by sensing core 4, and the sensing core 4 is arranged at required audio monitoring region
It is interior；Sensing core 4 is placed in the occasion for needing to monitor, to reach monitoring purpose.
This utility model preferably main frame 1 includes light source module 11, photoelectric conversion module 12, audio monitoring module 13,
LASER Light Source is transferred to light path front-end module 3 by the first transmission core 21 by the light source module 11；The light path front-end module 3
Heliogram is transferred to by electrically connecting transmission by photoelectric conversion module 12, and photoelectric conversion module 12 by the second transmission core 22
To audio monitoring module 13；Also include power module during enforcement, the power module provides power supply for the modules of main frame 1.
The preferably described first transmission core 21 of this utility model is arranged in same optical cable with the second transmission core 22 and is collectively constituted
Transmission core, and transmission core is single-mode fiber with sensing core 4.
This utility model preferably light source module 11 is ASE light sources, and sends the laser of 1550nm wavelength, light source module
11 can adjust light source output power size by PC ends by RS232 interfaces, to be adapted to optical path loss in difference occasion, light source die
Block 11 is the high steady light sources of ASE, long term power stability（Single temperature）0.05dB.
This utility model preferably photoelectric conversion module 12 includes photodiode, preamplifier, two grades of amplification electricity
Road and for every straight, filtering, some resistance for amplifying and electric capacity；Wherein light path front end mould and terminal module block adopt optical fiber
Ring, bonder, sensing optical fiber（Sensing core 4）Deng composition interference of light loop, the vibration signal on detection sensor core 4, then by the
Two transmission cores pass 22 and are defeated by photoelectric conversion module 12, and heliogram is converted to voltage signal by photoelectric conversion module 12, then is passed through
Electrical connection is transferred to audio monitoring module 13.
This utility model preferably audio monitoring module 13 turns for the voltage signal for exporting photoelectric conversion module 12
Acoustical signal is changed to, audio monitoring module 13 is identified to voltage signal, signal is carried out further when arranges value is reached
Background noise is filtered, reselection carries out signal storage or audio interface output, amplify output, and wherein audio interface is exported and amplified
Output can further carry out audio frequency size adjustment, make to be adapted to human ear reception.
When being embodied as, the laser that light source module 11 sends is by optical patchcord, the first optical cable connecting box or ODF framves, list
Mode fiber is transferred to light path front-end module 3, and light path front-end module 3 and light path terminal module 5 pass through the second optical cable connecting box or mould
Optical cable fixed seat that block is carried, fiber management tray are connected with sensing core 4 by optical fiber direct-fusing mode, and sensing core 4 can be laid on target
On the wall in region, wire gauze, underground, the place such as fence, heliogram accesses aforesaid first optical cable connecting box by transmitting core
Or ODF framves, then photoelectric conversion module 12 is accessed by optical patchcord, heliogram is converted into voltage letter by photoelectric conversion module 12
Number.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model know-why, some improvement and deformation can also be made, these change
Enter and deform also to should be regarded as protection domain of the present utility model.
Claims (6)
1. a kind of audio monitoring system based on Fibre Optical Sensor, it is characterised in that：Including main frame, transmission core, light path front-end module,
Sensing core and light path terminal module, the main frame are connected with light path front-end module by transmitting core；The light path front-end module
It is connected with light path terminal module by sensing core, and the sensing core is arranged in required audio monitoring region.
2. a kind of audio monitoring system based on Fibre Optical Sensor according to claim 1, it is characterised in that：The main frame bag
Light source module, photoelectric conversion module, audio monitoring module are included, LASER Light Source is transmitted by the light source module by the first transmission core
To light path front-end module；Heliogram is transferred to photoelectric conversion module by the second transmission core by the light path front-end module, and
Photoelectric conversion module is transferred to audio monitoring module by electrical connection.
3. a kind of audio monitoring system based on Fibre Optical Sensor according to claim 2, it is characterised in that：Described first passes
Defeated core and the second transmission core collectively constitute transmission core in being arranged at same optical cable, and transmission core is single-mode fiber with sensing core.
4. a kind of audio monitoring system based on Fibre Optical Sensor according to claim 2, it is characterised in that：The light source die
Block is ASE light sources, and sends the laser of 1550nm wavelength.
5. a kind of audio monitoring system based on Fibre Optical Sensor according to claim 2, it is characterised in that：The photoelectricity turns
Mold changing block includes photodiode, preamplifier, second amplifying circuit and for every straight, filtering, some resistance for amplifying
With electric capacity.
6. a kind of audio monitoring system based on Fibre Optical Sensor according to claim 2, it is characterised in that：The voice prison
The voltage signal for listening module for photoelectric conversion module is exported is converted to acoustical signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067876.9U CN206149368U (en) | 2016-09-21 | 2016-09-21 | Pronunciation monitor system based on optical fiber sensing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067876.9U CN206149368U (en) | 2016-09-21 | 2016-09-21 | Pronunciation monitor system based on optical fiber sensing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206149368U true CN206149368U (en) | 2017-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621067876.9U Expired - Fee Related CN206149368U (en) | 2016-09-21 | 2016-09-21 | Pronunciation monitor system based on optical fiber sensing |
Country Status (1)
| Country | Link |
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| CN (1) | CN206149368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562650A (en) * | 2018-06-01 | 2018-09-21 | 李霆睿 | A kind of passive monitoring device and passive monitoring system |
-
2016
- 2016-09-21 CN CN201621067876.9U patent/CN206149368U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562650A (en) * | 2018-06-01 | 2018-09-21 | 李霆睿 | A kind of passive monitoring device and passive monitoring system |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| 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: 20170503 Termination date: 20170921 |