CN109785839A - Low-power consumption standby system voice wake-up circuit and awakening method - Google Patents
Low-power consumption standby system voice wake-up circuit and awakening method Download PDFInfo
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- CN109785839A CN109785839A CN201910118663.6A CN201910118663A CN109785839A CN 109785839 A CN109785839 A CN 109785839A CN 201910118663 A CN201910118663 A CN 201910118663A CN 109785839 A CN109785839 A CN 109785839A
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- low
- power consumption
- voice
- speech recognition
- wake
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Abstract
The present invention is a kind of system a solution directly waken up with voice in deep sleep state.In battery powered system or have in the application system of low-power consumption demand, when master control system is not on working condition, it needs master control system to be in low-power consumption standby state, reduces the stand-by power consumption electric current of system as far as possible, battery power supply system in this way can greatly extend the system standby time；The system that other low-power consumption require in this way reduces influence of the system standby to the other functions of system or performance in system standby as far as possible.When they need voice to wake up, needs directly to wake up system with voice signal, system is then allowed to enter normal working condition.
Description
Technical field
The present invention is a kind of system a solution directly waken up with voice in deep sleep state.It is supplied in battery
Electricity system or have in the application system of low-power consumption demand, when master control system is not on working condition, need master control system
System is in low-power consumption standby state, reduces the stand-by power consumption electric current of system as far as possible, battery power supply system in this way can be very big
The extension system standby time；The system that other low-power consumption require in this way reduces system standby pair in system standby as far as possible
The influence of the other functions of system or performance.When they need voice to wake up, need directly to wake up system with voice signal, then
System is allowed to enter normal working condition.
Background technique
There is the more intelligent equipment using voice as human-computer interaction medium on the market at present.User is brought to user
Experience, more humane usage experience many advantages, such as.Such as intelligent sound box, intelligent sound control sweeping robot, intelligent language
Sound control panel lamp apparatus.Some equipment, which can be connected to always in AC power source, to be used and available enough uses power
, system can be allowed to be constantly in idle state, speech recognition system program is allowed to be constantly in working condition, wait user
Order.But some voice control intelligent equipments or it is battery powered or cannot be obtained in system standby from system
Enough energy are taken fully, various methods must be just used, system is reduced and is in the power consumption for waiting user command state.The present invention be exactly by
Solve what such practical challenges invented.
Summary of the invention
The present invention controls a switching tube, switching tube detects enough width using the voice signal after enhanced processing
Speech output signal is spent, a wake-up signal is exported and gives system wake-up pin, system receives the wake-up letter generated by switching tube
After number, system is waken up, allows system to be in normal speech recognition working condition and carries out speech recognition.
Detailed description of the invention
Fig. 1 is the principle of the present invention schematic diagram.Voice signal amplifies through amplifier after MIC pickup and is output to the end VOCOUT, and one
Road signal is directly entered CPU speech recognition system and carries out speech recognition, influences all the way through capacitance isolated DC, divider resistance
Voltage division processing, the control electrode of access switch pipe.When the amplitude of VOCOUT is sufficiently large, by being opened after capacitance isolated DC
A low level wake-up signal is generated after Q1, Q1 conducting to the system of CPU speech recognition, in CPU speech recognition system
When suspend mode, wake-up CPU speech recognition system enters speech recognition state and starts speech recognition.Amplification factor control circuit in figure
Be responsible for CPU speech recognition system control under adjust MIC input voice amplification factor, when system in a dormant state when, place
In suitable amplification factor, when receiving expected voice signal amplitude, generates low level wake-up signal and wake up CPU speech recognition
System.
Specific embodiment
When CPU speech recognition system works normally, CPU speech recognition system output control signal controls amplification factor
Control circuit works normally so that speech amplifier is in suitable magnifying state convenient for speech recognition.
When system does not have task to be in waiting voice order, CPU speech recognition system output control signal, so that
Amplifier magnification ratio control circuit control amplifier is in high gain state, and CPU speech recognition system does not work, and is in low function
Consume standby mode.When there is the variation of certain amplitude voice in outside, enough significantly voice signals are generated, wake-up switch is opened
Pipe, switching tube conducting generates system of the wake-up signal wake-up in low power consumpting state and returns to speech recognition state, and exports control
Signal, control amplification factor control circuit return to the suitable amplification factor state of speech recognition, can be carried out language after which
Sound identifies.
When CPU speech recognition system does not detect the preset voice command of system, system will go successively to low function
Consume waiting voice wake-up states.
Claims (4)
1. the present invention is low-power consumption standby system voice wake-up circuit and awakening method, it is characterised in that waken up in waiting voice
When coomand mode, speech recognition system does not work, and system is in low-power consumption standby state.
2. present invention be characterized in that directly by the voice signal of simulation, driving switch pipe output signal is waken up in low-power consumption
The speech recognition system of dormant state.
3. the present invention is characterized in that including but is not limited to directly field-effect tube, three poles with the voice signal driving additionally amplified
The direct port of pipe, CPU wakes up the speech recognition system in Low-power-consumptiodormancy dormancy state.
4. the present invention is characterized in that using different when speech recognition system low-power consumption standby and when normal waiting voice order
Voice amplification factor waits when waking up using high anti-amplification factor, using low amplification factor when speech recognition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118663.6A CN109785839A (en) | 2019-02-17 | 2019-02-17 | Low-power consumption standby system voice wake-up circuit and awakening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118663.6A CN109785839A (en) | 2019-02-17 | 2019-02-17 | Low-power consumption standby system voice wake-up circuit and awakening method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109785839A true CN109785839A (en) | 2019-05-21 |
Family
ID=66503263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910118663.6A Withdrawn CN109785839A (en) | 2019-02-17 | 2019-02-17 | Low-power consumption standby system voice wake-up circuit and awakening method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109785839A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473542A (en) * | 2019-09-06 | 2019-11-19 | 北京安云世纪科技有限公司 | Awakening method, device and the electronic equipment of phonetic order execution function |
-
2019
- 2019-02-17 CN CN201910118663.6A patent/CN109785839A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473542A (en) * | 2019-09-06 | 2019-11-19 | 北京安云世纪科技有限公司 | Awakening method, device and the electronic equipment of phonetic order execution function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190521 |
|
| WW01 | Invention patent application withdrawn after publication |