CN109962737A - Voice obtains system and method - Google Patents
Voice obtains system and method Download PDFInfo
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- CN109962737A CN109962737A CN201910226061.2A CN201910226061A CN109962737A CN 109962737 A CN109962737 A CN 109962737A CN 201910226061 A CN201910226061 A CN 201910226061A CN 109962737 A CN109962737 A CN 109962737A
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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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
Abstract
The embodiment of the present invention provides a kind of voice acquisition system and method, wherein the system comprises the first combined beam unit, the second combined beam unit, circulator and probe units；Wherein, first combined beam unit exports the first coupled laser for coupling fiber entering household laser and the first signal laser；The circulator is used to for first coupled laser being transmitted to fiber entering household end, and the second coupled laser that the fiber entering household end is reflected is transmitted to second combined beam unit；Second combined beam unit exports interference signal for interfering second coupled laser and second signal laser；The probe unit obtains voice messaging for demodulating for obtaining the interference signal, the interference signal.System and method provided in an embodiment of the present invention realize that remote voice messaging obtains by Drop cable, are not necessarily to pre-buried optical fiber, save project amount and cost of implementation, not noticeable, reduce the risk that concealed voice messaging obtains.
Description
Technical field
The present embodiments relate to information detection technical fields more particularly to a kind of voice to obtain system and method.
Background technique
For a long time, optical fiber voice messaging, which obtains, is used as a kind of widely applied voice messaging acquiring way, in military, peace
The fields such as anti-, production, economy have obtained commonly used, and achieve good effect.
Existing fiber voice messaging, which obtains, mainly to be realized by optical fiber microphone laser voice acquisition modes, and by optical fiber wheat
The tool that gram wind is obtained as voice, optical fiber microphone itself be it is wired, voice letter is obtained required for optical fiber is routed to
The room of breath needs to carry out optical fibre pre-buried, and project amount is big, easily discovers, and risk is big.
Summary of the invention
The embodiment of the present invention provides a kind of voice acquisition system and method, to solve existing voice acquisition modes needs
The problem of being laid with optical fiber in advance.
In a first aspect, the embodiment of the present invention provides a kind of voice acquisition system, including the first combined beam unit, the second conjunction Shu Dan
Member, circulator and probe unit；
Wherein, first combined beam unit is for coupling fiber entering household laser and the first signal laser, output the
One coupled laser；
The circulator is used to first coupled laser being transmitted to fiber entering household end, and the fiber entering household end is anti-
The second coupled laser penetrated is transmitted to second combined beam unit；
Second combined beam unit exports dry for interfering second coupled laser and second signal laser
Relate to signal；
The probe unit obtains voice messaging for demodulating for obtaining the interference signal, the interference signal.
Second aspect, the embodiment of the present invention provide a kind of voice acquisition methods, comprising:
System is obtained based on the voice as provided by first aspect, obtains interference signal；
Voice messaging is obtained based on the interference signal.
The third aspect, the embodiment of the present invention provide a kind of voice acquisition device, comprising:
Module is obtained, for obtaining system based on the voice as provided by first aspect, obtains interference signal；
Demodulation module, for obtaining voice messaging based on the interference signal.
Fourth aspect, the embodiment of the present invention provide a kind of electronic equipment, including processor, communication interface, memory and total
Line, wherein processor, communication interface, memory complete mutual communication by bus, and processor can call in memory
Logical order, to execute as provided by second aspect the step of method.
5th aspect, the embodiment of the present invention provide a kind of non-transient computer readable storage medium, are stored thereon with calculating
Machine program is realized as provided by second aspect when the computer program is executed by processor the step of method.
A kind of voice provided in an embodiment of the present invention obtains system and method, realizes remote voice by Drop cable
Acquisition of information is not necessarily to pre-buried optical fiber, saves project amount and cost of implementation, not noticeable, reduces concealed voice messaging and obtains
Risk.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram that voice provided in an embodiment of the present invention obtains system；
Fig. 2 be another embodiment of the present invention provides voice obtain system structural schematic diagram；
Fig. 3 is the flow diagram of voice acquisition methods provided in an embodiment of the present invention；
Fig. 4 is the schematic illustration of voice acquisition methods provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of voice acquisition device provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention.
Description of symbols:
The first combined beam unit of 1-；The second combined beam unit of 2-；3- circulator；
4- probe unit；5- fiber entering household end；6- the first acousto-optic modulation unit；
7- rising tone light-modulating cell；The first driving unit of 8-；The second driving unit of 9-；
10- laser cell；11- spectrophotometric unit.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It needs to carry out optical fibre pre-buried for existing fiber voice messaging acquisition modes, project amount is big, easily discovers, and risk is big
Problem, the embodiment of the invention provides a kind of voices to obtain system.Fig. 1 is that voice provided in an embodiment of the present invention obtains system
Structural schematic diagram, as shown in Figure 1, the system includes that the first combined beam unit 1, the second combined beam unit 2, circulator 3 and detection are single
Member 4；Wherein, for coupling fiber entering household laser and the first signal laser, the first coupling of output swashs the first combined beam unit 1
Light；Circulator 3 is used to for the first coupled laser being transmitted to fiber entering household end 5, and the second coupling that fiber entering household end 5 is reflected swashs
Optical transport is to the second combined beam unit 2；Second combined beam unit 2 is used to interfere the second coupled laser and second signal laser,
And export interference signal；Probe unit 4 obtains voice messaging for demodulating for obtaining interference signal, interference signal.
Specifically, fiber entering household laser is the letter obtained by needing to obtain the Drop cable that the room of voice messaging is laid with
Number laser, with the development of internet technology, fiber entering household is more more and more universal, substitutes pre-buried optical fiber by Drop cable to obtain
Voice messaging is provided convenience.First signal laser and second signal laser are for realizing that the acquisition of voice messaging is set in advance
Fixed signal laser, the first signal laser and second signal laser are only used for distinguishing two paths of signals laser herein, two-way
Signal laser can be provided by same laser source or different laser sources, and the present invention is not especially limit this.
First combined beam unit 1 and the second combined beam unit 2 are exported for coupling to the laser for being input to combined beam unit
Laser after coupling, the first combined beam unit 1 and the second combined beam unit 2 are only used for distinguishing two combined beam units herein.Ring
Shape device 3 is a kind of device for transmitting electromagnetic wave unidirectional loop, and circulator 3 is used for direction of propagation difference in the embodiment of the present invention
The first coupled laser and the second coupled laser keep apart, and be transmitted separately to fiber entering household end 5 and probe unit 4.Optical fiber enters
Family end 5 is the Drop cable terminal device for needing to obtain the room of voice messaging, and probe unit 4 is for detecting laser signal, also
Electric signal can be converted by laser signal.
For purposes of illustration only, below by signal laser disengaging circulator 3 port be denoted as respectively first port, second port and
Third port.Two input terminals of the first combined beam unit 1 are respectively connected to fiber entering household laser and the first signal laser, close first
The coupling that fiber entering household laser and the first signal laser are realized inside Shu Danyuan 1, obtains the first coupled laser.First coupled laser
It is exported from the output end of the first combined beam unit 1, the port that is connect into the first combined beam unit 1 with circulator 3, i.e. circulator 3
First port.First coupled laser passes through the port that circulator 3 is connect with fiber entering household end 5, the i.e. second port of circulator 3
Output, is transmitted to fiber entering household end 5 by Drop cable.The first coupled laser is reflected at fiber entering household end 5, for convenient for area
Point, the first coupled laser after reflection is known as the second coupled laser.Second coupled laser is along the transmission road of the first coupled laser
Diameter reverse transfer enters the second port of circulator 3 by Drop cable, and connect from circulator 3 with the second combined beam unit 2
Port, i.e. the third port output of circulator 3.After the output of the third port of second coupled laser and circulator 3, closed into second
Shu Danyuan 2.The second combined beam unit 2 also receives second signal laser simultaneously.Second signal laser and the second coupled laser are
Interfered in two combined beam units 2, and generates interference signal.Interference signal is exported from the second combined beam unit 2, is transmitted to detection
Unit 4.Probe unit 4 obtains above-mentioned interference signal, and is based on above-mentioned interference signal acquisition voice messaging.
System provided in an embodiment of the present invention realizes that remote voice messaging obtains by Drop cable, without pre-buried
Optical fiber saves project amount and cost of implementation, not noticeable, reduces the risk that concealed voice messaging obtains.
Based on the above embodiment, which further includes the first acousto-optic modulation unit and rising tone light-modulating cell；Wherein,
One acousto-optic modulation unit is used for before fiber entering household laser and the first signal laser are coupled, and is carried out to the first signal laser
Impulse modulation；Rising tone light-modulating cell is used for before the second coupled laser and second signal laser are interfered, to second
Signal laser carries out shift frequency.
Specifically, the first acousto-optic modulation unit and rising tone light-modulating cell are the acousto-optic for controlling laser beam intensity variation
Device, for realizing the modulation of signal laser.Acousto-optic modulation technology compares the direct modulation technique and Electro-optical Modulation skill to light source
Art has higher modulating frequency and extinction ratio, lower driving power, more excellent temperature stability and better luminous point matter
Amount and less expensive cost.In the embodiment of the present invention, the first acousto-optic modulation unit is connect with the first combined beam unit, first laser
Signal initially enters the first acousto-optic modulation unit, carries out impulse modulation by the first acousto-optic modulation unit, continuous signal is converted
After discrete pulse signal, first laser signal is input to the first combined beam unit and is coupled with fiber entering household laser.The
Two acousto-optic modulation units are connect with the second combined beam unit, and second laser signal initially enters rising tone light-modulating cell, by
After two acousto-optic modulation units carry out shift frequency, second laser signal is input to the second combined beam unit and is done with the second coupled laser
It relates to.
System provided in an embodiment of the present invention realizes the modulation of signal laser, Neng Goushi by setting acousto-optic modulation unit
Now better optical spot quality and less expensive cost provide quality assurance to obtain voice messaging.
Based on any of the above-described embodiment, which further includes laser cell and spectrophotometric unit.Wherein, laser cell is for defeated
Signal laser out, spectrophotometric unit are used to signal laser being divided into the first signal laser and second signal laser, and respectively by first
Signal laser and second signal laser are transmitted to the first acousto-optic modulation unit and rising tone light-modulating cell.
Specifically, laser cell is the device for having transmitting laser function, such as narrow line width regulatable laser etc., this hair
Bright embodiment is not especially limited this.Spectrophotometric unit is the inactive component for being separated to input light.The present invention is implemented
In example, laser cell is connect with spectrophotometric unit, and two output ports of spectrophotometric unit are defeated with the first acousto-optic modulation unit respectively
Inbound port is connected with the input port of rising tone light-modulating cell.After laser cell issues signal laser, signal laser is input to
In spectrophotometric unit, spectrophotometric unit is divided signal laser, is divided into the first signal laser and second signal laser, the first signal
The output port that laser is connect by spectrophotometric unit with the first acousto-optic modulation unit exports, be transferred to the first acousto-optic modulation unit into
Row impulse modulation, the output port output that second signal laser is connect by spectrophotometric unit with rising tone light-modulating cell, transmission
Shift frequency is carried out to rising tone light-modulating cell.
Based on any of the above-described embodiment, Fig. 2 be another embodiment of the present invention provides voice obtain the structural representation of system
Figure, as shown in Fig. 2, the system further includes the first driving unit 8 and the second driving unit 9；First driving unit 8 is for driving the
One acousto-optic modulation unit 6, the second driving unit 9 is for driving rising tone light-modulating cell 7.Wherein, the first driving unit 8 is used for
Impulse modulation of the first acousto-optic modulation unit 6 realization to the first signal laser is driven and controls, the second driving unit 9 is for driving
And the realization of rising tone light-modulating cell 7 is controlled to the shift frequency of second signal laser.
Based on any of the above-described embodiment, with reference to Fig. 2, a kind of voice acquisition system, including laser cell 10, spectrophotometric unit
11, the first acousto-optic modulation unit 6, rising tone light-modulating cell 7, the first driving unit 8, the second driving unit 9, first close Shu Dan
First 1, second combined beam unit 2, circulator 3 and probe unit 4.
Wherein, laser cell 10 is tunable narrow-linewidth semiconductor laser, operation wavelength 1550nm, frequency stability
For 10-7, power stability 1%.Single mode narrow-linewidth laser, that is, signal laser that laser cell 10 issues, passes through spectrophotometric unit
11 points are two-way laser, i.e. the first signal laser and second signal laser.Herein, the splitting ratio of spectrophotometric unit 11 is 10: 1, right
Answer the first signal laser and second signal laser.The first signal laser that spectrophotometric unit 11 exports enters the first acousto-optic modulation unit
6, the first acousto-optic modulation unit 6 carries out impulse modulation, pulse tune under the driving of the first driving unit 8, to the first signal laser
The pulse signal that the first signal laser after system is 200MHz, duty ratio 100: 1.In addition, the second of the output of spectrophotometric unit 11
Signal laser enters rising tone light-modulating cell 7, and the second driving unit 9 is that rising tone light-modulating cell 7 provides the period of 40MHz
Driving signal, rising tone light-modulating cell 7 under the driving of the second driving unit 9, to second signal laser carry out shift frequency, second
The shift frequency frequency of acousto-optic modulation unit 7 is 40MHz.
The first signal laser after impulse modulation is exported from the first acousto-optic modulation unit 6, is input to the first combined beam unit
1.Meanwhile fiber entering household laser also enters into the first combined beam unit 1.Inside the first combined beam unit 1, fiber entering household laser and
One signal laser is coupled, and the first coupled laser is obtained.First coupled laser is exported from the output end of the first combined beam unit 1,
The port being connect into the first combined beam unit 1 with circulator 3, the i.e. first port of circulator 3.First coupled laser passes through annular
The port that device 3 is connect with fiber entering household end 5, i.e. the second port output of circulator 3, are transmitted to optical fiber by Drop cable and enter
Family end 5.The first coupled laser is reflected at fiber entering household end 5, for convenient for distinguishing, the first coupled laser after reflection is known as
Second coupled laser.Second coupled laser enters ring by Drop cable along the transmission path reverse transfer of the first coupled laser
The second port of shape device 3, and from the port that circulator 3 is connect with the second combined beam unit 2, i.e. the third port of circulator 3 exports.
After the output of the third port of second coupled laser and circulator 3, into the second combined beam unit 2.
The second combined beam unit 2 also receives the second signal laser after 7 shift frequency of rising tone light-modulating cell simultaneously.Second letter
Number laser and the second coupled laser are interfered in the second combined beam unit 2, and generate interference signal.Interference signal is closed from second
It is exported in Shu Danyuan 2, is transmitted to probe unit 4.Probe unit 4 obtains above-mentioned interference signal, and is obtained based on above-mentioned interference signal
Take voice messaging.
System provided in an embodiment of the present invention realizes that remote voice messaging obtains by Drop cable, without pre-buried
Optical fiber saves project amount and cost of implementation, not noticeable, reduces the risk that concealed voice messaging obtains.
Based on any of the above-described embodiment, Fig. 3 is the flow diagram of voice acquisition methods provided in an embodiment of the present invention, such as
Shown in Fig. 3, this method comprises:
310, system is obtained based on the voice that any of the above-described embodiment provides, obtains interference signal；
Specifically, interference signal be the first signal laser with after fiber entering household laser coupled through being reflected by fiber entering household end
Afterwards, it after being interfered with second signal laser, is detected by probe unit.
320, voice messaging is obtained based on interference signal.
Specifically, interference signal is decoded, obtains voice messaging.
Method provided in an embodiment of the present invention realizes that remote voice messaging obtains by Drop cable, without pre-buried
Optical fiber saves project amount and cost of implementation, not noticeable, reduces the risk that concealed voice messaging obtains.
Based on any of the above-described embodiment, interference signal includes reference point interference signal and registers one's residence and hold interference signal.
Specifically, Fig. 4 is the schematic illustration of voice acquisition methods provided in an embodiment of the present invention, with reference to Fig. 4, is gone out in figure
Luminous point, that is, laser cell setting position, end of registering one's residence need to obtain the fiber entering household end of the position of voice messaging.Reference point is
It is preset be located at luminous point and register one's residence end between Drop cable on point, pass through between reference point and fiber entering household end into
The connection of family optical fiber, such as reference point setting are registered one's residence in distance and are held at 50m.
When voice obtains system worked well, when a pulse in the first coupled laser is transferred to reference point by optical fiber
When, since rayleigh scattering returns, and via circulator and the second combining unit after, detected unit detects, detection is single herein
The i.e. reference point interference signal that member detects.By demodulation reference point interference signal it is available from laser cell go out luminous point to
The variation of light path caused by this section of optical fiber extraneous circumstance when reference point passes through apart from upper optical fiber light pulse.In addition, probe unit
It can also detect that the first coupled laser is reflected by fiber entering household end, and register one's residence via what circulator and the second combining unit obtained
Hold interference signal.By demodulate register one's residence hold interference signal available from laser cell go out luminous point to fiber entering household end optical fiber light
Change in optical path length caused by the whole section of optical fiber external world influences when pulse passes through.
Accordingly, step 320 specifically includes:
321, it is based on reference point interference signal, obtains out the change in optical path length amount between luminous point and reference point.
Specifically, it by demodulation reference point interference signal, can obtain going out luminous point to reference point distance from laser cell
The variation of light path caused by this section of optical fiber extraneous circumstance when upper optical fiber light pulse passes through, i.e. light between luminous point and reference point out
Journey variable quantity.
322, interference signal is held based on registering one's residence, the change in optical path length amount for obtaining out luminous point between end of registering one's residence.
Specifically, it is registered one's residence by demodulation and holds interference signal, can obtain holding distance to registering one's residence from the luminous point that goes out of laser cell
The variation of light path caused by this section of optical fiber extraneous circumstance when upper optical fiber light pulse passes through, i.e., out luminous point and register one's residence end between light
Journey variable quantity.
323, based on the change in optical path length amount out between luminous point and reference point, and out, the light path between luminous point and end of registering one's residence becomes
Change amount, the change in optical path length amount for obtaining reference point between end of registering one's residence.
Specifically, the change in optical path length amount between luminous point and reference point is being obtained out, and out between luminous point and end of registering one's residence
It after change in optical path length amount, based on luminous point out, reference point and registers one's residence and holds the positional relationship of three, by the light between luminous point out and end of registering one's residence
The journey variable quantity and change in optical path length amount between luminous point and reference point is subtracted each other out, the light path that reference point can be obtained between end of registering one's residence
Variable quantity.
324, based on the change in optical path length amount between reference point and end of registering one's residence, obtain voice messaging.
Specifically, by the change in optical path length amount between demodulation reference point and end of registering one's residence, reference point can be obtained and end of registering one's residence
Between Drop cable under voice messaging.Thus obtained voice messaging is avoided in other sections of optical fiber since vibration causes
Light path superposition lead to flood the possibility of this section of voice messaging.
Method provided in an embodiment of the present invention measures voice by the change in optical path length for obtaining reference point between end of registering one's residence
Information has effectively filtered remote optical fiber bring interference, has improved the clarity of voice messaging.
Based on any of the above-described embodiment, a kind of voice acquisition methods include the following steps:
Firstly, obtaining the probe unit of system based on voice, obtains reference point interference signal and register one's residence and hold interference signal.
Secondly, obtaining out the change in optical path length amount between luminous point and reference point by following formula:
I1=A1+B cos[2πΔft+L1+ΔL1]；
In formula, I1For the light intensity of reference point interference signal, A1For the direct current of reference point interference signal be converted to after electric signal
Intensity, B are interference coefficient, and Δ f is the shift frequency frequency of second signal laser, L1It is long to go out the optical fiber between luminous point and reference point
Degree, Δ L1For the change in optical path length amount gone out between luminous point and reference point.
Then, the change in optical path length amount for luminous point being obtained out between end of registering one's residence by following formula:
I2=A2+B cos[2πΔft+L2+ΔL2]；
In formula, I2For the light intensity for holding interference signal of registering one's residence, A2For the direct current be converted to after electric signal for holding interference signal of registering one's residence
Intensity, B are interference coefficient, and Δ f is the shift frequency frequency of second signal laser, L2It is long to go out luminous point and the optical fiber between holding of registering one's residence
Degree, Δ L2For the change in optical path length amount for going out luminous point between end of registering one's residence.
Then, the change in optical path length amount Δ L for reference point being obtained between end of registering one's residence by following formula:
Δ L=Δ L2-ΔL1；
After obtaining Δ L, Δ L is demodulated, obtains voice signal.
Based on any of the above-described embodiment, Fig. 5 is the structural schematic diagram of voice acquisition device provided in an embodiment of the present invention, such as
Shown in Fig. 5, which includes obtaining module 510 and demodulation module 520；
Wherein, it obtains module 510 to be used to obtain system based on voice, obtains interference signal；
Demodulation module 520 is used to obtain voice messaging based on the interference signal.
Device provided in an embodiment of the present invention realizes that remote voice messaging obtains by Drop cable, without pre-buried
Optical fiber saves project amount and cost of implementation, not noticeable, reduces the risk that concealed voice messaging obtains.
Based on any of the above-described embodiment, the interference signal includes reference point interference signal and registers one's residence and hold interference signal；
Accordingly, the demodulation module 520 includes the first light path submodule, the second light path submodule, third light path submodule
Block conciliates tune module；
Wherein, the first light path submodule is used to be based on the reference point interference signal, obtains out between luminous point and reference point
Change in optical path length amount；
Second light path submodule is used to hold interference signal based on described register one's residence, the light path for obtaining out luminous point between end of registering one's residence
Variable quantity；
Third light path submodule is used for based on the change in optical path length amount between luminous point and reference point out and the light out
Change in optical path length amount between point and end of registering one's residence obtains the change in optical path length amount between the reference point and the end of registering one's residence；
Demodulation submodule is used to obtain the voice based on the change in optical path length amount between the reference point and the end of registering one's residence
Information.
Based on any of the above-described embodiment, the first light path submodule is specifically used for:
The change in optical path length amount between luminous point and reference point is obtained out by following formula:
I1=A1+B cos[2πΔft+L1+ΔL1]；
In formula, I1For the light intensity of the reference point interference signal, A1Electric signal is converted to for the reference point interference signal
Direct current intensity afterwards, B are interference coefficient, and Δ f is the shift frequency frequency of second signal laser, L1For luminous point and the reference out
Fiber lengths between point, Δ L1For the change in optical path length amount between luminous point and reference point out.
Based on any of the above-described embodiment, the second light path submodule is specifically used for:
The change in optical path length amount for obtaining out luminous point between end of registering one's residence by following formula:
I2=A2+B cos[2πΔft+L2+ΔL2]；
In formula, I2The light intensity of interference signal, A are held for described register one's residence2For it is described register one's residence hold interference signal be converted to electric signal
Direct current intensity afterwards, B are interference coefficient, and Δ f is the shift frequency frequency of second signal laser, L2It registers one's residence for the luminous point out with described
Fiber lengths between end, Δ L2For the change in optical path length amount between the luminous point out and end of registering one's residence.
Fig. 6 is the entity structure schematic diagram of electronic equipment provided in an embodiment of the present invention, as shown in fig. 6, the electronic equipment
It may include: processor (processor) 601,602, memory communication interface (Communications Interface)
(memory) 603 and communication bus 604, wherein processor 601, communication interface 602, memory 603 pass through communication bus 604
Complete mutual communication.Processor 601 can call the meter that is stored on memory 603 and can run on processor 601
Calculation machine program, to execute the voice acquisition methods of the various embodiments described above offer, for example, system is obtained based on voice, is obtained
Interference signal；Voice messaging is obtained based on the interference signal.
In addition, the logical order in above-mentioned memory 603 can be realized by way of SFU software functional unit and conduct
Independent product when selling or using, can store in a computer readable storage medium.Based on this understanding, originally
The technical solution of the inventive embodiments substantially part of the part that contributes to existing technology or the technical solution in other words
It can be embodied in the form of software products, which is stored in a storage medium, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes the present invention respectively
The all or part of the steps of a embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk
Etc. the various media that can store program code.
The embodiment of the present invention also provides a kind of non-transient computer readable storage medium, is stored thereon with computer program,
The computer program is implemented to carry out the voice acquisition methods of the various embodiments described above offer when being executed by processor, for example,
System is obtained based on voice, obtains interference signal；Voice messaging is obtained based on the interference signal.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of voice obtains system, which is characterized in that including the first combined beam unit, the second combined beam unit, circulator and spy
Survey unit；
Wherein, first combined beam unit exports the first coupling for coupling fiber entering household laser and the first signal laser
Close laser；
The circulator is used to for first coupled laser being transmitted to fiber entering household end, and the fiber entering household end is reflected
Second coupled laser is transmitted to second combined beam unit；
Second combined beam unit exports interference letter for interfering second coupled laser and second signal laser
Number；
The probe unit obtains voice messaging for demodulating for obtaining the interference signal, the interference signal.
2. system according to claim 1, which is characterized in that further include the first acousto-optic modulation unit and the second acousto-optic modulation
Unit；
Wherein, the first acousto-optic modulation unit in the fiber entering household laser and the first signal laser for carrying out coupling it
Before, impulse modulation is carried out to first signal laser；
The rising tone light-modulating cell is used for before second coupled laser and second signal laser are interfered, to institute
It states second signal laser and carries out shift frequency.
3. system according to claim 2, which is characterized in that further include laser cell and spectrophotometric unit；
Wherein, the laser cell is used for output signal laser, and the spectrophotometric unit is used to for the signal laser being divided into described
First signal laser and the second signal laser, and respectively transmit first signal laser and the second signal laser
To the first acousto-optic modulation unit and the rising tone light-modulating cell.
4. system according to claim 2, which is characterized in that further include the first driving unit and the second driving unit；
For first driving unit for driving the first acousto-optic modulation unit, second driving unit is described for driving
Rising tone light-modulating cell.
5. a kind of voice acquisition methods characterized by comprising
System is obtained based on voice described in any one of Claims 1-4, obtains interference signal；
Voice messaging is obtained based on the interference signal.
6. according to the method described in claim 5, it is characterized in that, the interference signal includes reference point interference signal and registers one's residence
Hold interference signal；
Accordingly, described that voice messaging is obtained based on the interference signal, it specifically includes:
Based on the reference point interference signal, the change in optical path length amount between luminous point and reference point is obtained out；
Interference signal is held based on described register one's residence, the change in optical path length amount for obtaining out luminous point between end of registering one's residence；
Become based on the light path between the change in optical path length amount between luminous point and reference point out and the luminous point out and end of registering one's residence
Change amount obtains the change in optical path length amount between the reference point and the end of registering one's residence；
Based on the change in optical path length amount between the reference point and the end of registering one's residence, the voice messaging is obtained.
7. according to the method described in claim 6, it is characterized in that, it is described be based on the reference point interference signal, obtain out light
Change in optical path length amount between point and reference point, specifically includes:
The change in optical path length amount between luminous point and reference point is obtained out by following formula:
I1=A1+B cos[2πΔft+L1+ΔL1]；
In formula, I1For the light intensity of the reference point interference signal, A1For the reference point interference signal be converted to electric signal after
Direct current intensity, B are interference coefficient, and Δ f is the shift frequency frequency of second signal laser, L1For it is described go out luminous point and the reference point it
Between fiber lengths, Δ L1For the change in optical path length amount between luminous point and reference point out.
8. according to the method described in claim 6, obtaining out light it is characterized in that, described hold interference signal based on described register one's residence
Change in optical path length amount between point and end of registering one's residence, specifically includes:
The change in optical path length amount for obtaining out luminous point between end of registering one's residence by following formula:
I2=A2+B cos[2πΔft+L2+ΔL2]；
In formula, I2The light intensity of interference signal, A are held for described register one's residence2For it is described register one's residence hold interference signal be converted to electric signal after
Direct current intensity, B are interference coefficient, and Δ f is the shift frequency frequency of second signal laser, L2It is held for luminous point and described register one's residence out
Between fiber lengths, Δ L2For the change in optical path length amount between the luminous point out and end of registering one's residence.
9. a kind of electronic equipment, which is characterized in that including processor, communication interface, memory and bus, wherein processor leads to
Believe that interface, memory complete mutual communication by bus, processor can call the logical order in memory, to execute
Method as described in claim 5 to 8 is any.
10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer
The method as described in claim 5 to 8 is any is realized when program is executed by processor.
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