CN109637538A - A method of realizing voice control - Google Patents
A method of realizing voice control Download PDFInfo
- Publication number
- CN109637538A CN109637538A CN201811646194.7A CN201811646194A CN109637538A CN 109637538 A CN109637538 A CN 109637538A CN 201811646194 A CN201811646194 A CN 201811646194A CN 109637538 A CN109637538 A CN 109637538A
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- CN
- China
- Prior art keywords
- signal
- voice
- control
- converted
- command
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/02—Feature extraction for speech recognition; Selection of recognition unit
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/26—Speech to text systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/546—Combination of signalling, telemetering, protection
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
- G10L2015/223—Execution procedure of a spoken command
Abstract
The present invention provides a kind of method for realizing voice control, includes the following steps: S1, obtains voice signal；S2, command signal is converted by voice signal；S3, command signal is modulated to the bandpass signal that can be transmitted；S4, transmit bandpass signal on power line；S5, signal demodulation is carried out to bandpass signal；S6, corresponding control signal is converted by the signal after demodulating in S5；S7, equipment is controlled by controlling signal.By making that treated, voice signal is transmitted on power line, realizes the control to terminal device, can effectively expand the control mode and communication modes of electric appliance, increases application scenarios.The equipment control mode used on the market is mostly panel control, and both hands can be effectively liberated by way of voice, so that control is more convenient and intelligent；Communication coverage area can be effectively increased using power carrier communication technology, supplements existing WIFI, bluetooth is infrared etc., realizes the obstacle detouring transmission of signal, guarantees communication efficient.
Description
Technical field
The present invention relates to the cross-synthesis fields of artificial intelligence, computer and the communication technology, belong to a kind of by semantic information
It is converted into induction signal and by the control technology of electric force carrier transmission, in particular to a kind of method for realizing voice control.
Background technique
Current speech technology is fast-developing, and application scenarios are more and more diversified, and the means of the communication used are mainly logical
WIFI is crossed, bluetooth, the mechanicss of communication such as infrared and external device carry out signal communication, to realize equipment control.Voice enters simultaneously
Mouth mostly uses online speech recognition, and to network rate, cpu resource occupies height, and cumbersome, cannot quickly access.In family
It is transformed in use, the above mechanics of communication is required to addition external equipment, has many requirements and limitation to device signal.Market
In upper whole technical solution, WIFI needs network insertion, and bluetooth, infrared equidistant inadequate, through-wall performance is bad, security performance
It is not high, it is easy to be cracked, the wireless device that accessing excessive communication module will cause in family increases, and brings the interference of signal
And radiation.
Summary of the invention
The purpose of the present invention is to solve in current control technology, key is used in the prior art more, touches and
It is controlled, using WIFI, bluetooth, infrared equal transmission of control signals, but these control methods and transmission means make equipment
Limitation is strong, is easy by external environmental interference, and equipment working state is easy unstable, and experience effect is poor, and usage scenario is more demanding
The problem of, propose a kind of method for realizing voice control.
The present invention further solves remote in the distance of terminal device, and there are excessive interference, physical space exists spacing wave
When obstacle, the problem of improving terminal device control effect in the actual use environment.
In order to solve the above technical problems, the present invention proposes a kind of method for realizing voice control, include the following steps: S1,
Obtain voice signal；S2, command signal is converted by voice signal；S3, command signal is modulated to the bandpass signal that can be transmitted；
S4, transmit bandpass signal on power line；S5, signal demodulation is carried out to bandpass signal；S6, by S5 demodulate after letter
Number it is converted into corresponding control signal；S7, equipment is controlled by controlling signal.
Further, carrier communication transmitting unit and receiving unit are added, signal transmission is carried out by existing power line.
Compared with prior art, the beneficial effects of the present invention are as follows:
By making that treated, voice signal is transmitted on power line, realizes the control to terminal device, Ke Yiyou
The control mode and communication modes of the expansion electric appliance of effect, increase application scenarios.The equipment control mode used on the market is mostly face
Plate control, can effectively liberate both hands by way of voice, so that control is more convenient and intelligent；It is logical using power carrier
News technology can effectively increase communication coverage area, supplement existing WIFI, and bluetooth is infrared etc., realize the obstacle detouring transmission of signal,
Guarantee communication efficient.
Further, control signal is issued by speech recognition and works as actual environment by carrier wave come transmission of control signals
In, it needs using controlling remote terminal device to voice, and wireless communication technique is immature, pass through existing power line
Transmission, the control effect of terminal device in the actual environment can be improved, accurately the state of controlling terminal equipment.
Detailed description of the invention
Fig. 1 is the system framework figure of the embodiment of the present invention.
Fig. 2 is that the flow chart of voice control device is realized in the low-power consumption PLC signal transmission of the embodiment of the present invention.
Fig. 3 is the flow chart that voice signal is converted into instruction output in the embodiment of the present invention.
Fig. 4 is the flow chart of PLC modulating and demodulating signal transmission of control signals in the embodiment of the present invention.
Specific embodiment
The innovative principle point of the following embodiments of the present invention is, the panel in first difference current device control, key,
The control methods such as infrared realize the conversion of control signal using speech recognition；Second is to carry out signal using PLC carrier wave
Transmission, is different from WIFI used in current transmission, bluetooth, the technologies such as infrared；It is more convenient and intelligent using voice control,
Command range can be effectively increased using carrier-wave transmission, avoids signal interference, expands application scenarios.
Specific embodiment 1
As shown in Figure 1, the present invention is based on PLC (Power Line Communication, power line carrier, PLC) technology realities
The method of existing voice control carries out the remote transmission of voice signal, solves when control remote equipment that bring is inconvenient, increases
Add transmission means；Increase control means using voice recognition commands word.
As shown in Fig. 2, being whole work process principle, audio controls are transmitted by low-power consumption, realize equipment control
The method of system, comprising the following steps:
S1, voice signal is obtained；Voice signal is acquired by the microphone of voice unit, voice is believed using noise reduction algorithm
Number do noise reduction process.Speech signal collection is to get the order that people is issued by voice.
S2, voice signal are converted into command signal；The voice signal after noise reduction process is identified by encoding and decoding speech
For corresponding syllable, it is converted into command signal.Voice switchs to text, is that will order to be converted into corresponding command signal, identifies people
Order be intended to.
S3, command signal is modulated to the bandpass signal that can be transmitted；Phonetic order signal is passed through into QPSK (Quadrature
Phase Shift Keying, orthogonal phase shift coding) modulation is converted into bandpass signal, enhance signal energy.
S4, bandpass signal is transmitted on power line by power carrier；It is transmitted using power carrier, so that
Receiving end can accurately receive the voice signal transmitted in carrier wave.
S5, receiving end demodulate band communication；Bandpass signal demodulation, restores voice signal
S6, corresponding control signal is converted by the signal after demodulating in S5；From the signal after S5 demodulation, extract
The command signal of effect is converted into corresponding control signal, is sent to equipment end.
S7, terminal device is controlled by controlling signal；After terminal device receives control signal, to control signal solution
Analysis, makes corresponding movement.
Its above-mentioned steps are disassembled for three parts: first part's speech recognition is to control the premise of signal transmission, the
Two some electrical power carrier communications are the necessary means of transmission, and Part III control result feedback is to measure transmission means and identification matter
The important indicator of amount.
As shown in figure 3, being needed after microphone acquires signal in the process that voice signal is converted into command signal and exports
Noise reduction process, echo cancellor etc. are done to the voice signal of acquisition, such as: noise reduction process is done to signal using secondary lobe algorithm, is used
Hardware echo cancellation algorithm built in DSP (Digital Signal Processing, Digital Signal Processing) does voice signal
Processing carries out the encoding and decoding of voice to obtain pure PCM pulse code modulation (Pulse-Code Modulation) code stream.
Syllabic elements fractionation is carried out to coded data, acoustic model is obtained by a large amount of sample training, after carrying out feature extraction, is used
Hidden Markov Model carries out the modeling on language model, exports corresponding voice, voice is converted into corresponding command signal, so
After export corresponding command signal.Wherein, command signal is write according to corresponding agreement, forms complete protocol frame,
When needing to add order or increasing control equipment, effectively agreement can be expanded, do not need to do existing protocol
Excessive modification.
As shown in figure 4, containing the process of carrier signal transmission and signal feedback.The data flow of voice unit data,
When sending in power carrier carrier wave both ends, the carrier chip of carrier wave receiving unit can be modulated signal.Carrier signal modulation
When, digital signal is converted in such a way that QPSK orthogonal phase shift encodes (Quadrature Phase Shift Keying)
Bandpass signal is transmitted by some channel, and the power of signal can be enhanced using bandpass signal, enhance signal before transmission
Power, avoid power carrier transmission process decaying it is excessive, avoid so that receiving end received signal is excessively small and weak.Carrier wave
Receiving unit demodulates signal, proposes that corresponding data, data are converted into corresponding instruction, is sent out by carrier wave transmitting unit
Give terminal device.Terminal device upon the reception of control signals, to control signal resolution, is controlled accordingly, control
State can be converted into corresponding feedback signal by processing, then by power carrier by feedback signal back to voice unit,
After voice unit receives feedback signal, it is translated into corresponding phonetic order, and broadcasts out the control shape of present terminal equipment
State, in order to which voice unit can broadcast out current equipment state.
Means of communication is extended using PLC technology, it is ensured that stability and safety in communication process are not easy
It is cracked, does not have to consider Network status, while avoiding family's existing equipment and route is substantially transformed or more exchange device,
So as to reduce the safety that equipment cost significantly widens the scene of voice control application and equipment uses.In voice portal
On using offline module, the design low cost of chip, low-power consumption, while can also guarantee the accuracy rate of identification, perfect life
Word is enabled to make it have a part of online experience effect, perfect communications protocol mechanism can be with Quick Extended equipment.By offline
Voice adds power carrier, the popularity of smart home can be made to improve, quality of preferably making the life better.
The advantages of voice control device is: voice control device is conducive to quickly liberate both hands, realize machinery equipment and
Speech exchange between people, the characteristics of embodying intelligent control, while voice control have it is easy to operate, it is simple easy to get started, it is right
It is applicable in the crowd in each stage, voice control facilitates the raising of the wisdom degree of equipment.
Using power carrier signal transmit major advantage be: power carrier can in existing powerline layout into
The transmission of row signal does not need to carry out track remodelling, while the characteristics of powerline layout can allow signal through walls rapidly
It more keeps away, is interspersed between various metal equipments, do not need to add the additional network equipment in the family, increase the equipment pipe of family
Reason burden.
Claims (10)
1. a kind of method for realizing voice control, which comprises the steps of:
S1, voice signal is obtained, acquires voice signal, noise reduction process is done to voice signal, obtained voice signal voice signal and adopt
Collection is to get the voice command that human hair goes out, the order word that accurate understanding people says；
S2, voice signal are converted into command signal, are identified as the voice signal after noise reduction process pair by encoding and decoding speech
The syllable answered is converted into command signal, and voice signal is converted into command signal voice and is converted into corresponding command signal, identifies people
Order be intended to.
2. a kind of method for realizing voice control according to claim 1, which is characterized in that further comprise the steps of:
S3, command signal are modulated to the bandpass signal that can be transmitted, and convert band communication by QPSK modulation for phonetic order signal
Number；
S4, bandpass signal is transmitted on power line by power carrier, is transmitted using power carrier, so that receiving
End can accurately receive the voice signal transmitted in carrier wave.
3. a kind of method for realizing voice control according to claim 2, which is characterized in that further comprise the steps of:
S5, bandpass signal is demodulated, bandpass signal demodulation restores voice signal；
S6, the signal after demodulating in S5 is converted to corresponding control signal, the voice signal after S5 demodulation extracts effective
Command signal is converted into corresponding control signal, is sent to equipment, after terminal device receives control signal, to control signal solution
Analysis, makes corresponding movement.
4. a kind of method for realizing voice control according to claim 3, which is characterized in that further comprise the steps of: S7, pass through
Control signal controls equipment, after equipment receives data, parses to data command, makes corresponding movement.
5. a kind of method for realizing voice control according to claim 1, which is characterized in that step S2 is using in DSP
The hardware echo cancellation algorithm set processes voice signal and obtains pure pcm stream.
6. a kind of method for realizing voice control according to claim 1, which is characterized in that step S2 presses for command signal
According to corresponding agreement organizations at corresponding data.
7. a kind of method for realizing voice control according to claim 2, which is characterized in that step S3 be by QPSK just
It hands over the mode of phase-shift coding to convert bandpass signal for digital signal, is transmitted by channel.
8. a kind of method for realizing voice control according to claim 1, which is characterized in that step S2 be include: to language
Sound coded data carries out syllabic elements fractionation, carries out sample training and obtains corresponding acoustic model, after feature extraction, utilization is hidden
Markov model is modeled, and the voice flow of maximum probability is obtained, and generates corresponding text, and it is converted into correspondence by text
Command signal, then export corresponding command signal.
9. a kind of method for realizing voice control according to claim 4, which is characterized in that step S7 is that terminal device exists
It after receiving control signal, to control signal resolution, is controlled accordingly, the state of control is converted into corresponding by processing
Feedback signal, then after voice unit receives feedback signal, will be fed back feedback signal back to voice unit by power carrier
Signal is converted into corresponding phonetic order, and broadcasts out the state of a control at current device end.
10. a kind of computer readable storage medium is stored with the computer program being used in combination with calculating equipment, the calculating
Machine program can be executed by processor to realize any one of claim 1 to 9 the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811646194.7A CN109637538A (en) | 2018-12-29 | 2018-12-29 | A method of realizing voice control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811646194.7A CN109637538A (en) | 2018-12-29 | 2018-12-29 | A method of realizing voice control |
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| Publication Number | Publication Date |
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| CN109637538A true CN109637538A (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811646194.7A Pending CN109637538A (en) | 2018-12-29 | 2018-12-29 | A method of realizing voice control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265014A (en) * | 2019-06-24 | 2019-09-20 | 付金龙 | A kind of method, apparatus and translator of voice control |
| CN112910747A (en) * | 2021-01-13 | 2021-06-04 | 贵州拓视实业有限公司 | Indoor voice forwarding processing method and device |
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| CN104570756A (en) * | 2015-01-26 | 2015-04-29 | 山东亿昌照明科技有限公司 | Electrical appliance cloud computing mobile control system and control method thereof based on power system |
| CN105068437A (en) * | 2015-08-05 | 2015-11-18 | 谭乾俊 | Speech recognition intelligent control system based on power carrier wave |
| CN204883353U (en) * | 2015-08-31 | 2015-12-16 | 魏歌 | Electrical control system based on power line carrier |
| CN108091331A (en) * | 2017-12-27 | 2018-05-29 | 北京镁客创新工场科技有限公司 | A kind of intelligent domestic system and its control method based on voice control |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101498916A (en) * | 2008-02-02 | 2009-08-05 | 钱晓锋 | Virtual digital switch apparatus, system and method for electric appliance |
| CN104570756A (en) * | 2015-01-26 | 2015-04-29 | 山东亿昌照明科技有限公司 | Electrical appliance cloud computing mobile control system and control method thereof based on power system |
| CN105068437A (en) * | 2015-08-05 | 2015-11-18 | 谭乾俊 | Speech recognition intelligent control system based on power carrier wave |
| CN204883353U (en) * | 2015-08-31 | 2015-12-16 | 魏歌 | Electrical control system based on power line carrier |
| CN108091331A (en) * | 2017-12-27 | 2018-05-29 | 北京镁客创新工场科技有限公司 | A kind of intelligent domestic system and its control method based on voice control |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265014A (en) * | 2019-06-24 | 2019-09-20 | 付金龙 | A kind of method, apparatus and translator of voice control |
| CN112910747A (en) * | 2021-01-13 | 2021-06-04 | 贵州拓视实业有限公司 | Indoor voice forwarding processing method and device |
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Application publication date: 20190416 |