CN108922536A - The method and system of voice wake-up processor work - Google Patents
The method and system of voice wake-up processor work Download PDFInfo
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- CN108922536A CN108922536A CN201810689365.8A CN201810689365A CN108922536A CN 108922536 A CN108922536 A CN 108922536A CN 201810689365 A CN201810689365 A CN 201810689365A CN 108922536 A CN108922536 A CN 108922536A
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- 238000007599 discharging Methods 0.000 claims description 3
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- 238000012545 processing Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 21
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/28—Constructional details of speech recognition systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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Abstract
Present invention discloses a kind of methods of voice wake-up processor work, including, obtain the voice signal within the scope of certain frequency；The voice signal is converted into DC current；Charging operations are carried out by capacitor of the DC current to built-in resistance-capacitance circuit；When the voltage saturation of the capacitor, if the voltage of capacitor release is greater than predeterminated voltage, high level is exported to processor, to wake up the processor work.The present invention uses the combination of single bandpass filter and single power amplifier, so that circuit is simple and energy consumption unit is few, while low using the electric current of resistance-capacitance circuit wake-up processor consumption, realizes voice low energy consumption triggering processor work.
Description
Technical field
The present invention relates to technical field of electronic equipment, a kind of method for especially relating to voice wake-up processor work
And system.
Background technique
As terminal communication of internet of things equipment application is more and more wider, battery powered equipment is more and more, wants to power consumption
Ask harsher.In artificial intelligent voice interaction scenarios, wait generated standby when waking up the equipment such as multi-microphone array
Power consumption is big, to reduce the service life of battery, while reducing user experience.Therefore developer must focus on RFCO2 laser
With the standby current, wake-up mode and operational mode of MCU.And used awakening method uses bandpass filter in the prior art
It is combined with the multiple groups of power amplifier, so that circuit is complicated, while standby current is big, and power consumption is big.
Summary of the invention
The main object of the present invention is to provide a kind of method and system of voice wake-up processor work, realizes certain frequency
Sound low-power consumption triggering processor work in range.
A kind of method that the present invention proposes voice wake-up processor work, including,
Obtain the voice signal within the scope of certain frequency；
Voice signal is converted into DC current；
Charging operations are carried out by capacitor of the DC current to built-in resistance-capacitance circuit；
When the voltage saturation of capacitor, if the voltage of capacitor release is greater than predeterminated voltage, high level is exported to processor,
It is worked with wake-up processor
Further, the step of obtaining the voice signal within the scope of certain frequency, including,
Initial voice signal is received by microphone and initial voice signal is transferred to bandpass filter；
After the initial voice signal for intercepting certain frequency range by bandpass filter, voice signal is obtained and by the sound
Sound signal is transferred to power amplifier.
Further, the step of voice signal being converted into DC current, including,
The power for amplifying voice signal by power amplifier, obtains amplified signal；
Amplified signal is rectified by rectifier, obtains DC current.
Further, if the step of voltage of capacitor release is greater than predeterminated voltage, exports high level to processor, packet
It includes,
The voltage that capacitor discharges is compared with predeterminated voltage by voltage comparator；
When the voltage of capacitor release is greater than the predeterminated voltage, high level is exported to processor by voltage comparator.
Further, before the step of obtaining the voice signal within the scope of certain frequency, including,
In a dormant state whether measurement processor；
If so, executing the step of obtaining the voice signal within the scope of certain frequency.
The present invention also provides a kind of systems of voice wake-up processor work, including,
Module is obtained, for obtaining the voice signal within the scope of certain frequency；
Conversion module, for voice signal to be converted to DC current；
Charging module, for carrying out charging operations by capacitor of the DC current to built-in resistance-capacitance circuit；
Wake-up module, for if the voltage of capacitor release is greater than predeterminated voltage, exporting height when the voltage saturation of capacitor
Level is worked to processor with wake-up processor.
Further, obtaining module includes receiving unit, for passing through microphone reception initial voice signal and will be initial
Transmission of sound signals is to bandpass filter；Screening unit, it is initial within the scope of certain frequency for being intercepted by bandpass filter
After voice signal, voice signal is obtained and by transmission of sound signals to power amplifier.
Further, conversion module includes amplifying unit, for amplifying the power of voice signal by power amplifier,
Obtain amplified signal；Rectification unit obtains DC current for rectifying amplified signal by rectifier.
Further, wake-up module includes,
Comparing unit, for being compared the voltage that capacitor discharges with predeterminated voltage by voltage comparator；Output is single
Member when the voltage for discharging when capacitor is greater than predeterminated voltage, exports high level to processor by voltage comparator.
Further, the system of voice wake-up processor further includes detection module, and detection module includes judging unit, is used
Whether in a dormant state in measurement processor；Execution unit, for if so, executing the sound obtained within the scope of certain frequency
The step of signal.
Compared with prior art, beneficial effect is the method and system of voice wake-up processor work of the present invention, uses
The combination of single bandpass filter and single power amplifier, so that circuit is simple and energy consumption unit is few, while using capacitance-resistance electricity
The electric current of road wake-up processor consumption is low, realizes voice low energy consumption triggering processor work.
Detailed description of the invention
Fig. 1 is the step schematic diagram of one embodiment of method of voice wake-up processor work of the present invention；
Fig. 2 is the step schematic diagram of another embodiment of method of voice wake-up processor work of the present invention；
Fig. 3 is the step schematic diagram of the method 3rd embodiment of voice wake-up processor work of the present invention；
Fig. 4 is the step schematic diagram of the method fourth embodiment of voice wake-up processor work of the present invention；
Fig. 5 is the step schematic diagram of the 5th embodiment of method of voice wake-up processor work of the present invention；
Fig. 6 is the structural schematic diagram of one embodiment of system of voice wake-up processor work of the present invention；
Fig. 7 is the structural schematic diagram of another embodiment of system of voice wake-up processor work of the present invention；
Fig. 8 is the structural schematic diagram of the system 3rd embodiment of voice wake-up processor work of the present invention；
Fig. 9 is the structural schematic diagram of the system fourth embodiment of voice wake-up processor work of the present invention；
Figure 10 is the structural schematic diagram of the 5th embodiment of system of voice wake-up processor work of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Referring to Fig.1, the method for one embodiment of the invention voice wake-up processor work, including：
S1 obtains the voice signal within the scope of certain frequency；
Voice signal is converted to DC current by S2；
S3 carries out charging operations by capacitor of the DC current to built-in resistance-capacitance circuit；
S4, if the voltage of capacitor release is greater than predeterminated voltage, exports high level to processing when the voltage saturation of capacitor
Device is worked with wake-up processor.
In above-mentioned steps S1, voice signal includes the sound and clapping that human hair goes out, and intensity of sound is 50 decibels, sound
Sound signal is AC signal；Certain frequency range is 20~20000Hz, and 20~20000Hz is the frequency range that human ear can be heard,
In the frequency range internal trigger processor that people can hear, can guarantor know that microphone receives at voice signal and triggering
Device work is managed, avoids the sound frequencies such as ultrasound from triggering processor work in the ignorant situation of people, to reduce unnecessary
Energy consumption.
In above-mentioned steps S2, in one embodiment, voice signal is rectified by DC current by rectifier；Direct current
Stream charges for providing electric energy to resistance-capacitance circuit.
In above-mentioned steps S3, resistance-capacitance circuit includes resistance and capacitor, and resistance and capacitor are in parallel.According to capacitance-resistance electricity in parallel
The characteristics of road can not only lead to direct current but also can lead to exchange, at this point, DC current can be by parallel circuit, and to capacitor charging.
In above-mentioned steps S4, resistance-capacitance circuit receives DC current charging, when resistance-capacitance circuit charges to the electricity of resistance-capacitance circuit
When pressure saturation, resistance-capacitance circuit release voltage；It is charged but when voltage unsaturation when resistance-capacitance circuit charges to DC current, resistance-capacitance circuit
Not release voltage, processor are not waken up, and step terminates at this time, and the step of after no longer executing is to reduce unnecessary energy
Consumption；The voltage of high level is 1.8V, and voltage at this time is enough to wake-up processor work.
Referring to figure, 2, in the present embodiment, S1, obtain certain frequency within the scope of voice signal the step of include,
S11 receives initial voice signal by microphone and initial voice signal is transferred to bandpass filter；
S12 intercepts the voice signal within the scope of certain frequency by bandpass filter and by the transmission of sound signals of interception
To power amplifier.
In above-mentioned steps S11, microphone includes the microphone of the low energy consumption such as dynamic microphones, and dynamic microphones connect
The voltage of the voice signal of receipts is lower than 10 millivolts, so circuit voltage is low, the energy consumption of microphone is also low.
In above-mentioned steps S12, since the voltage of the received voice signal of microphone is low, in the unchanged feelings of voice signal
It is transferred to bandpass filter under condition, so energy consumption of the bandpass filter in the case where voltage is low is also low.
Referring to Fig. 3, in the present embodiment, S2, the step of voice signal is converted to DC current includes,
S21 is amplified the power of voice signal by power amplifier, obtains amplified signal；
S22 rectifies amplified signal by rectifier, and rectifier exports DC current.
In above-mentioned steps S21, amplified signal is AC signal；Power amplifier includes the power consumptions such as AB power-like amplifier
Low amplifier, AB power-like amplifier can be to avoid intermodulation distortion, while being alternately distorted the larger even-order harmonic that can offset and losing
Very, more efficient, the transistor dissipation in AB power-like amplifier is low, and the power consumption of wake-up processor is lower, is able to extend battery
Use the time.
In above-mentioned steps S22, the effect of rectifier is will to exchange (AC) to be converted to direct current (DC), is supplied after filtering negative
It carries, while charging voltage being provided, serve as charger；On the other side is inverter：Direct current (DC) is converted into exchange (AC).
Referring to Fig. 4, in above-mentioned steps S4, if the voltage of capacitor release is greater than predeterminated voltage, high level is exported
The step of to processor, including,
The voltage that the capacitor discharges is compared by S41 by voltage comparator with predeterminated voltage；
S42 exports high electricity by the voltage comparator when the voltage of capacitor release is greater than the predeterminated voltage
It puts down to processor.
In above-mentioned steps S41, capacitor passes through resistance release voltage in parallel in resistance-capacitance circuit, the judgement of voltage comparator
Principle：When voltage comparator determines that "+" input terminal voltage is greater than "-" input terminal voltage, voltage comparator output is high level；When
Voltage comparator "+" input terminal voltage is less than "-" input terminal voltage, and voltage comparator output is low level.
In above-mentioned steps S42, voltage is the "+" input terminal voltage of voltage comparator, and predeterminated voltage is voltage comparator
"-" input terminal voltage；By be arranged predeterminated voltage voltage value be less than voltage, guarantee voltage comparator comparison voltage with
When predeterminated voltage, voltage is greater than predeterminated voltage, to guarantee that voltage comparator exports high level, to guarantee that high level is sufficiently large
The work of voltage wake-up processor.
Referring to Fig. 5, in the present embodiment, S1, before the step of obtaining the voice signal within the scope of certain frequency, including,
S51, in a dormant state whether measurement processor；
S52, if so, executing the step of obtaining the voice signal within the scope of certain frequency.
In above-mentioned steps S51, processor in a dormant state when, processor needs to wake up, but processor is in normal work
When making, wake operation is not just executed, so that unnecessary energy consumption is reduced, to extend battery Acceptable life.
In above-mentioned steps S52, when processor, which is in, to be worked normally, bandpass filter is straight by filtered voice signal
It connects and is transferred to processor；When processor in a dormant state when, then need to carry out wake operation by the method for the invention.
Referring to the system that Fig. 6, one embodiment of the invention voice wake-up processor work, including,
Module 1 is obtained, for obtaining the voice signal within the scope of certain frequency；
Conversion module 2, for voice signal to be converted to DC current；
Charging module 3, for carrying out charging operations by capacitor of the DC current to built-in resistance-capacitance circuit；
Wake-up module 4, for when the voltage saturation of the capacitor, if the voltage of capacitor release is greater than default electricity
Pressure then exports high level to processor, to wake up the processor work.
In above-mentioned acquisition module 1, voice signal includes the sound and clapping that human hair goes out, and intensity of sound is 50 points
Shellfish, voice signal are AC signal；Certain frequency range is 20~20000Hz, and 20~20000Hz is the frequency that human ear can be heard
Range, in the frequency range internal trigger processor that people can hear, can guarantor know that microphone receives voice signal simultaneously
Processor work is triggered, the sound frequencies such as ultrasound is avoided to trigger processor work in the ignorant situation of people, to reduce not
Necessary energy consumption.
In above-mentioned conversion module 2, DC current charges for providing electric energy to resistance-capacitance circuit.
In above-mentioned power module 3, resistance-capacitance circuit includes resistance and capacitor, and resistance and capacitor are in parallel.Simultaneously according to capacitance-resistance
The characteristics of connection circuit can not only lead to direct current but also can lead to exchange, at this point, DC current can be filled by parallel circuit, and to capacitor
Electricity.
In above-mentioned wake-up module 4, resistance-capacitance circuit receives DC current charging, when resistance-capacitance circuit charges to resistance-capacitance circuit
When voltage saturation, resistance-capacitance circuit release voltage；It is charged but when voltage unsaturation when resistance-capacitance circuit charges to DC current, capacitance-resistance electricity
Release voltage, processor are not waken up on road, and step terminates at this time, and the step of after no longer executing is to reduce unnecessary energy
Consumption；The voltage of high level is 1.8V, and voltage at this time is enough to wake-up processor work.
Referring to Fig. 7, in the present embodiment, obtaining module 1 includes：
Receiving unit 11, for receiving voice signal and by transmission of sound signals to bandpass filter by microphone；Sieve
Menu member 12, for intercepting the voice signal within the scope of certain frequency by bandpass filter and being transferred to power amplifier.
In above-mentioned receiving unit 11, microphone includes the microphone of the low energy consumption such as dynamic microphones, moving-coil type Mike
The voltage of the received voice signal of wind is lower than 10 millivolts, so circuit voltage is low, the energy consumption of microphone is also low.
In above-mentioned screening unit 12, since the voltage of the received voice signal of microphone is low, had not been changed in voice signal
In the case where be transferred to bandpass filter, so energy consumption of the bandpass filter in the case where voltage is low is also low.
Referring to Fig. 8, in the present embodiment, conversion module 2 includes：
Amplifying unit 21 obtains amplified signal for amplifying the power of voice signal by power amplifier；Rectification unit
22, for rectifying amplified signal by rectifier, obtain DC current.
In above-mentioned amplifying unit 21, amplified signal is AC signal；Power amplifier includes AB power-like amplifier etc.
Amplifier low in energy consumption, AB power-like amplifier can be to avoid intermodulation distortion, while being alternately distorted that larger can to offset even humorous
Wave distortion, more efficient, the transistor dissipation in AB power-like amplifier is low, and the power consumption of wake-up processor is lower, is able to extend
Battery uses the time.
In above-mentioned rectification unit 22, the effect of rectifier is will to exchange (AC) to be converted to direct current (DC), is supplied after filtering
To load, while charging voltage is provided, serves as charger.
Referring to Fig. 9, in the present embodiment, wake-up module 4 includes：
Comparing unit 41, for being compared the voltage that the capacitor discharges with predeterminated voltage by voltage comparator；
Output unit 42 is exported when the voltage for discharging when the capacitor is greater than the predeterminated voltage by the voltage comparator
High level is to processor.
In above-mentioned charhing unit 41, capacitor passes through resistance release voltage in parallel in resistance-capacitance circuit, voltage comparator
Decision principle：When voltage comparator determines that "+" input terminal voltage is greater than "-" input terminal voltage, voltage comparator output is high electricity
It is flat；When voltage comparator "+" input terminal voltage is less than "-" input terminal voltage, voltage comparator output is low level.
In above-mentioned discharge cell 42, voltage is the "+" input terminal voltage of voltage comparator, and predeterminated voltage compares for voltage
The "-" input terminal voltage of device；Voltage value by the way that predeterminated voltage is arranged is less than voltage, guarantees in voltage comparator in comparison voltage
When with predeterminated voltage, voltage is greater than predeterminated voltage, to guarantee that voltage comparator exports high level, to guarantee that high level is sufficiently large
Voltage wake-up processor work.
Referring to Fig.1 0, in the present embodiment, the system of voice wake-up processor further includes detection module 5, and detection module 5 wraps
It includes：
Judging unit 51, whether in a dormant state for measurement processor；Output unit 52 obtains centainly for executing
The step of voice signal in frequency range.
In above-mentioned judging unit 51, processor in a dormant state when, processor needs to wake up, but processor is normal
When work, wake operation is not just executed, so that unnecessary energy consumption is reduced, to extend battery Acceptable life.
In above-mentioned execution unit 52, when processor, which is in, to be worked normally, bandpass filter believes filtered sound
Number it is transmitted directly to processor；When processor in a dormant state when, then need to carry out wake operation by the method for the invention.
The present invention uses the combination of single bandpass filter and single power amplifier, so that circuit is simple and energy consumption unit
It is few while low using the electric current of resistance-capacitance circuit wake-up processor consumption, realize voice low energy consumption triggering processor work.
The present embodiment so that circuit is simpler and less energy-consuming, realizes language by the combination of the work characteristics of low energy consumption hardware
Sound low energy consumption triggers processor work.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (10)
1. a kind of method of voice wake-up processor work, which is characterized in that including,
Obtain the voice signal within the scope of certain frequency；
The voice signal is converted into DC current；
Charging operations are carried out by capacitor of the DC current to built-in resistance-capacitance circuit；
When the voltage saturation of the capacitor, if the voltage of capacitor release is greater than predeterminated voltage, high level is exported to place
Device is managed, to wake up the processor work.
2. the method for voice wake-up processor work according to claim 1, which is characterized in that the acquisition certain frequency
The step of voice signal in range, including,
Initial voice signal is received by microphone and the initial voice signal is transferred to bandpass filter；
After the initial voice signal for intercepting certain frequency range by the bandpass filter, the voice signal is obtained simultaneously
By the transmission of sound signals to power amplifier.
3. the method for voice wake-up processor work according to claim 2, which is characterized in that described to believe the sound
The step of number being converted to DC current, including,
The power for amplifying the voice signal by the power amplifier, obtains amplified signal；
The amplified signal is rectified by rectifier, obtains the DC current.
4. the method for voice wake-up processor work according to claim 3, which is characterized in that if the capacitor is released
The step of voltage put is greater than predeterminated voltage, then exports high level to processor, including,
The voltage that the capacitor discharges is compared with predeterminated voltage by voltage comparator；
When the voltage of capacitor release is greater than the predeterminated voltage, high level is exported to processing by the voltage comparator
Device.
5. the method for voice wake-up processor work according to claim 1-4, which is characterized in that the acquisition
Before the step of voice signal within the scope of certain frequency, including,
Whether in a dormant state to detect the processor；
If so, the step of executing the voice signal obtained within the scope of certain frequency.
6. a kind of system of voice wake-up processor work, which is characterized in that including,
Module is obtained, for obtaining the voice signal within the scope of certain frequency；
Conversion module, for the voice signal to be converted to DC current；
Charging module, for carrying out charging operations by capacitor of the DC current to built-in resistance-capacitance circuit；
Wake-up module, it is defeated if the voltage of capacitor release is greater than predeterminated voltage for when the voltage saturation of the capacitor
High level is to processor out, to wake up the processor work.
7. the system of voice wake-up processor work according to claim 6, which is characterized in that the acquisition module packet
It includes,
Receiving unit, for receiving initial voice signal by the microphone and being transferred to the initial voice signal described
Bandpass filter；
Screening unit obtains after intercepting the initial voice signal within the scope of certain frequency by the bandpass filter
The power amplifier is given to voice signal and by the transmission of sound signals.
8. the system of voice wake-up processor work according to claim 7, which is characterized in that the conversion module packet
It includes,
Amplifying unit obtains amplified signal for amplifying the power of voice signal by the power amplifier；
Rectification unit obtains the DC current for rectifying the amplified signal by the rectifier.
9. the system of voice wake-up processor work according to claim 8, which is characterized in that the wake-up module packet
It includes,
Comparing unit, for being compared the voltage that the capacitor discharges with predeterminated voltage by the voltage comparator；
Output unit, it is defeated by the voltage comparator when voltage for discharging when the capacitor is greater than the predeterminated voltage
High level is to processor out.
10. according to the system of the described in any item voice wake-up processor work of claim 6-9, which is characterized in that institute's predicate
The system of sound wake-up processor work further includes detection module, and the detection module includes,
Judging unit, for whether in a dormant state to detect the processor；
Execution unit, for if so, the step of executing the voice signal obtained within the scope of certain frequency.
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| PCT/CN2019/073529 WO2020001025A1 (en) | 2018-06-28 | 2019-01-28 | Voice wake-up processor operation method, system, and computer device |
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| CN113129905A (en) * | 2021-03-31 | 2021-07-16 | 深圳鱼亮科技有限公司 | Distributed voice awakening system based on multiple microphone array nodes |
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| CN107403621A (en) * | 2017-08-25 | 2017-11-28 | 深圳市沃特沃德股份有限公司 | Voice Rouser and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020001025A1 (en) * | 2018-06-28 | 2020-01-02 | 深圳市沃特沃德股份有限公司 | Voice wake-up processor operation method, system, and computer device |
| CN113129905A (en) * | 2021-03-31 | 2021-07-16 | 深圳鱼亮科技有限公司 | Distributed voice awakening system based on multiple microphone array nodes |
| CN113129905B (en) * | 2021-03-31 | 2022-10-04 | 深圳鱼亮科技有限公司 | Distributed voice awakening system based on multiple microphone array nodes |
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