CN107357174A - A kind of distributed intelligence audio amplifier speech control system - Google Patents
A kind of distributed intelligence audio amplifier speech control system Download PDFInfo
- Publication number
- CN107357174A CN107357174A CN201710812679.8A CN201710812679A CN107357174A CN 107357174 A CN107357174 A CN 107357174A CN 201710812679 A CN201710812679 A CN 201710812679A CN 107357174 A CN107357174 A CN 107357174A
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- CN
- China
- Prior art keywords
- module
- control system
- audio amplifier
- distributed intelligence
- voice
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2642—Domotique, domestic, home control, automation, smart house
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention provides a kind of distributed intelligence audio amplifier speech control system, including intelligent sound box body, also include the voice signal acquisition device of front end, the voice signal acquisition device includes voice acquisition module and wireless transmitter module, and the voice signal acquisition device is communicatively coupled by the wireless transmitter module and the intelligent sound box body.The present invention is by the way that the voice acquisition module of front end and speech processing module are separated, only voice signal acquisition device need to be installed in each room, and shared speech processing module is integrated in intelligent sound box body with control module, reduce cost, and more lightweight, also have great convenience for the user, improve comfortableness.
Description
Technical field
The present invention relates to intelligent sound box technical field, more particularly to a kind of distributed intelligence audio amplifier speech control system.
Background technology
Smart home be using house as platform, using comprehensive wiring technology, the network communications technology, security precautions technology, from
Dynamic control technology, audio frequency and video technology etc. integrate the relevant facility of life staying idle at home, and it is daily with family to build efficient housing facilities
The management system of affairs, lifting house security, convenience, comfortableness, artistry, and realize the living environment of environmental protection and energy saving.
In order to improve the convenience degree of user, current smart home has the function of Voice command, generally uses intelligent sound
Case is as carrier.Wherein, intelligent sound box includes the voice acquisition module and intelligent control device of front end, and intelligent control device is used for
The voice signal gathered to the voice acquisition module of front end carries out certain pretreatment, and operation is identified, and identifies corresponding
Instruction after, control the smart machine in the room to be acted accordingly, as shown in Figure 1.
Because user is required to carry out Voice command in each room, and the voice of front end is adopted in Fig. 1 intelligent sound box
Collection module integrates with the speech processing module for speech recognition, therefore needs to be respectively provided with above-mentioned intelligence in each room
Audio amplifier, cost is high, and causes the integrally inadequate lightweight of intelligent sound box speech control system.
Therefore it provides a kind of cost is low and the light-weighted intelligent sound box speech control system for smart home is current
Need to solve the problems, such as.
The content of the invention
(1) technical problem solved
, only need to be each the invention provides a kind of distributed intelligence audio amplifier speech control system in order to solve the above problems
The voice signal acquisition device of front end is installed in individual room, and shared speech processing module is integrated in intelligence with control module
In speaker body, cost is low and more lightweight.
(2) technical scheme
A kind of distributed intelligence audio amplifier speech control system, including intelligent sound box body, include the voice signal of front end
Harvester, the voice signal acquisition device include voice acquisition module and wireless transmitter module, the speech signal collection
Device is communicatively coupled by the wireless transmitter module and the intelligent sound box body.
Further, the voice acquisition module is digital microphone.
Further, the intelligent sound box body includes wireless receiving module, speech processing module, control module, output
Module and power module.
Further, the speech processing module includes D/A conversion unit, characteristics extraction unit and identification matching
Unit；
The data signal that the speech processing module receives is converted to analog signal by the D/A conversion unit；
The characteristics extraction unit carries out MFCC characteristics extractions to the analog signal；
The identification matching unit builds a state network, is found and the MFCC characteristic values from the state network
The path most matched.
Further, the wireless transmitter module and the wireless receiving module are bluetooth or WiFi communication module.
Further, the control module is single-chip microcomputer.
Further, the output module is loudspeaker.
(3) beneficial effect
The invention provides a kind of distributed intelligence audio amplifier speech control system, by by the voice acquisition module of front end and
Speech processing module separates, and only need to install voice signal acquisition device in each room, and speech processes that will be shared
Module is integrated in intelligent sound box body, reducing cost, and more lightweight with control module, also greatly facilitates use
Family, improve comfortableness.
Brief description of the drawings
Fig. 1 is the fundamental diagram of intelligent sound box speech control system of the prior art.
Fig. 2 is a kind of structural representation of distributed intelligence audio amplifier speech control system involved in the present invention.
Fig. 3 is a kind of fundamental diagram of distributed intelligence audio amplifier speech control system involved in the present invention.
Fig. 4 is that a kind of speech processing module structure of distributed intelligence audio amplifier speech control system involved in the present invention is shown
It is intended to.
Embodiment
Embodiment involved in the present invention is described in further details below in conjunction with the accompanying drawings.
With reference to Fig. 2 and Fig. 3, a kind of distributed intelligence audio amplifier speech control system, including intelligent sound box body 1, in addition to
The voice signal acquisition device 2 of front end, voice signal acquisition device 2 include voice acquisition module and wireless transmitter module, voice
Signal pickup assembly 2 is communicatively coupled by wireless transmitter module and intelligent sound box body 1.
Intelligent sound box body 1 includes wireless receiving module, speech processing module, control module, output module and power supply mould
Block.
The voice signal acquisition device 2 of front end is installed in each room, when user is located in the room, thinks Voice command
During smart machine in the room, only default phonetic order need to be said i.e. against the voice signal acquisition device 2 in the room
Can, the phonetic order information is sent to intelligent sound box sheet outside room by the wireless sending module inside voice signal acquisition device 2
The speech processing module of body 1 is analyzed and processed.
Voice acquisition module is digital microphone, and digital microphone output is data signal, rather than common simulation
Signal, more convenient for being wirelessly transferred.Digital microphone shape is similar with common electret microphone, and basic structure is：
One transducer, the analog signal of acoustical signal, and the single-bit sigma-delta modulator A-D converter more than 1 are represented for producing,
Data output signal is produced from analog signal according to oversampling speed and in the form of sigma-delta modulation bit stream.Digital microphone
The great advantage of wind is strong antijamming capability, without built-in high-frequency filter capacitor and filter circuit as traditional microphones.
Digital microphone because its it is intrinsic the characteristics of, will not be by those interference shadows from computer, network and RF magnetic field signal source etc.
Ring, therefore when access, without using shielding line, the confined space can be effectively utilized.
As shown in figure 4, speech processing module includes D/A conversion unit, characteristics extraction unit and identification matching unit.
Because the essence of sound is a kind of waveform, the data signal that D/A conversion unit receives speech processing module turns
It is changed to analog signal.Sound is actually a kind of ripple, it is therefore desirable to is reduced to simulate by the data signal that digital microphone exports
Signal, to facilitate follow-up characteristics extraction and identification to match.
Characteristics extraction unit carries out MFCC characteristics extractions to analog signal., it is necessary to handle before identification matching is started
The Jing Yin excision of analog signal two ends, reduce interference, the operation of this Jing Yin excision to caused by subsequent step and be commonly referred to as
Speech terminals detection (VAD).Then framing is carried out to analog signal, that is, sound is cut into it is a bit of, it is each
Segment is referred to as a frame.Framing operation is not simply to cut, but is realized using mobile window function.After framing, voice just becomes
Into many segments, but waveform does not almost have descriptive power in time domain, it is therefore necessary to converts waveform, a kind of common change
The method of changing is extraction MFCC characteristic values.According to the physiological property of human ear, each frame waveform is become a multi-C vector, Ke Yijian
The content information that this vector contains this frame voice singly is interpreted as, this process is called acoustic characteristic extraction.Some frame languages
The corresponding state (phonetic unit) of sound, into a phoneme, (pronunciation of word is made up of every three combinations of states phoneme, Chinese one
As be directly used as phone set by the use of whole initial consonants and simple or compound vowel of a Chinese syllable), several phonotactics are into a word.That is, only it is to be understood that
Which state is corresponded to per frame voice, the result of speech recognition just comes out.
Identify that matching unit builds a state network, the road most matched with MFCC characteristic values is found from state network
Footpath.Which state is corresponded to per frame, sees that certain frame corresponds to the maximum probability of which state, which state this frame just belongs to.By hidden
Markov model builds a state network, and result is limited in network set in advance.Such as in the network set only
Contain the state path of " opening air-conditioning " and " closing air-conditioning " two sentences, then no matter user says something, identify
As a result necessarily one in the two sentences.State network is built, is that phoneme network is launched into by word level network, it is reinflated
Into state network.Speech recognition match process is exactly that an optimal path is searched in state network in fact, and voice corresponds to this
The maximum probability in path, this referred to as " is decoded ", can be used to find global optimum path by Viterbi algorithm, this is a kind of
The algorithm of Dynamic Programming beta pruning.
Wireless transmitter module and wireless receiving module are bluetooth or WiFi communication module, and the voice signal in each room is adopted
Acquisition means 2 by bluetooth or WiFi by digital data transmission to room outside intelligent sound box body 1.
Control module is single-chip microcomputer, and the operation that the analysis result of speech processing module is converted into control smart machine refers to
Order, the smart machine in corresponding room is sent to by wireless transmission method, it is operated accordingly.
Output module is loudspeaker, and intelligent sound box body 1 is connected with audio frequency apparatus by wireless communication module, audio is set
The standby audio signal played is amplified output by loudspeaker.
The power module of intelligent sound box body 1 is internal battery or external civil power.
The invention provides a kind of distributed intelligence audio amplifier speech control system, by by the voice acquisition module of front end and
Speech processing module separates, and only need to install voice signal acquisition device in each room, and speech processes that will be shared
Module is integrated in intelligent sound box body, reducing cost, and more lightweight with control module, also greatly facilitates use
Family, improve comfortableness.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to the structure of the present invention
Think and scope is defined.On the premise of design concept of the present invention is not departed from, technology of the ordinary people in the field to the present invention
The all variations and modifications that scheme is made, all should drop into protection scope of the present invention, the claimed technology contents of the present invention,
All record in detail in the claims.
Claims (7)
1. a kind of distributed intelligence audio amplifier speech control system, including intelligent sound box body, it is characterised in that：Also including front end
Voice signal acquisition device, the voice signal acquisition device include voice acquisition module and wireless transmitter module, the voice
Signal pickup assembly is communicatively coupled by the wireless transmitter module and the intelligent sound box body.
A kind of 2. distributed intelligence audio amplifier speech control system according to claim 1, it is characterised in that：The voice is adopted
Integrate module as digital microphone.
A kind of 3. distributed intelligence audio amplifier speech control system according to claim 1, it is characterised in that：The intelligent sound
Case body includes wireless receiving module, speech processing module, control module, output module and power module.
A kind of 4. distributed intelligence audio amplifier speech control system according to claim 3, it is characterised in that：At the voice
Managing module includes D/A conversion unit, characteristics extraction unit and identification matching unit；
The data signal that the speech processing module receives is converted to analog signal by the D/A conversion unit；
The characteristics extraction unit carries out MFCC characteristics extractions to the analog signal；
The identification matching unit builds a state network, is found from the state network with the MFCC characteristic values most
The path matched somebody with somebody.
A kind of 5. distributed intelligence audio amplifier speech control system according to claim 3, it is characterised in that：The wireless hair
It is bluetooth or WiFi communication module to penetrate module and the wireless receiving module.
A kind of 6. distributed intelligence audio amplifier speech control system according to claim 3, it is characterised in that：The control mould
Block is single-chip microcomputer.
A kind of 7. distributed intelligence audio amplifier speech control system according to claim 3, it is characterised in that：The output mould
Block is loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812679.8A CN107357174A (en) | 2017-09-11 | 2017-09-11 | A kind of distributed intelligence audio amplifier speech control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812679.8A CN107357174A (en) | 2017-09-11 | 2017-09-11 | A kind of distributed intelligence audio amplifier speech control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107357174A true CN107357174A (en) | 2017-11-17 |
Family
ID=60290822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710812679.8A Withdrawn CN107357174A (en) | 2017-09-11 | 2017-09-11 | A kind of distributed intelligence audio amplifier speech control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108563941A (en) * | 2018-07-02 | 2018-09-21 | 信利光电股份有限公司 | A kind of intelligent home equipment control method, intelligent sound box and intelligent domestic system |
| CN108989162A (en) * | 2018-08-03 | 2018-12-11 | 李晨阳 | A kind of household intelligent robot steward system |
| CN110493092A (en) * | 2019-08-28 | 2019-11-22 | 深圳市云之尚网络科技有限公司 | Universal remote control and household appliance remote control method based on far field voice and IOT |
-
2017
- 2017-09-11 CN CN201710812679.8A patent/CN107357174A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108563941A (en) * | 2018-07-02 | 2018-09-21 | 信利光电股份有限公司 | A kind of intelligent home equipment control method, intelligent sound box and intelligent domestic system |
| CN108989162A (en) * | 2018-08-03 | 2018-12-11 | 李晨阳 | A kind of household intelligent robot steward system |
| CN108989162B (en) * | 2018-08-03 | 2020-12-15 | 徐州木牛流马机器人科技有限公司 | Household intelligent robot management system |
| CN110493092A (en) * | 2019-08-28 | 2019-11-22 | 深圳市云之尚网络科技有限公司 | Universal remote control and household appliance remote control method based on far field voice and IOT |
| CN110493092B (en) * | 2019-08-28 | 2022-02-01 | 深圳市云之尚网络科技有限公司 | Universal remote control based on far-field voice and IOT (input/output) and household appliance remote control method |
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Application publication date: 20171117 |