CN104880980A - Voice control circuit - Google Patents
Voice control circuit Download PDFInfo
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- CN104880980A CN104880980A CN201510165271.7A CN201510165271A CN104880980A CN 104880980 A CN104880980 A CN 104880980A CN 201510165271 A CN201510165271 A CN 201510165271A CN 104880980 A CN104880980 A CN 104880980A
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- resistance
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- ground connection
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
-
- 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
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a voice control circuit, which comprises a pick-up, an amplification circuit, controllers U1 and U2 and a power supply. The pick-up is connected with the amplification circuit. The amplification circuit, the controller U1, the controller U2 and the power supply are connected with one another. According to the invention, the controller U1 is used for controlling a resistor R16 to be connected in series to the amplification circuit and short-connected with the ground, in this way, the amplification factor of the amplification circuit can be controlled, the voice sensitivity can thus be adjusted, and the invention is therefore allowed to have the advantages of simple circuit structure, low cost and easy and wide promotion.
Description
Technical field
The present invention relates to intelligent electronic device field, particularly, relate to a kind of sound control circuit.
Background technology
Sound control circuit is through development for many years and use, product on existing market is existing a lot, scheme is also very ripe, the control of sound controling switch circuit is applied very extensive, audio-switch is as the part in intelligent appliance, it is many convenient to bring to the life of people, allows the control of switch be among the control of sound.
Press the application of most audio-switch in the market, substantially be all that the sensitivity of voice response can not be arranged according to the situation at scene, or can not carry out according to certain sound frequency the circuit product that responds, when most environmental noise reaches certain sound size, namely audio-switch triggers, switch is made often to occur misjudgment phenomenon, a kind of fixing sensitivity product like this, the use underaction making it relative, very practical requirement can not be reached, subscriber usage is not high, the popularization in market also receives very large impact, the control other electrical equipment being used as switch can not be generalized to.For the environment that on-the-spot noise ratio is larger, user wishes that this electrical equipment is opened in the misoperation do not produced by Environmental Noise Influence usually, thus feels disappointed, and now selects the lower gear of remolding sensitivity to be conducive to removing the noise jamming of environment.More corresponding more quiet environment, user wishes that response sensitivity height at this time a bit, need not the switch of too large action and controllable appliance.For the sound of some frequency acoustic, we often do not wish that circuit produces response, and the audio-switch response frequency on existing market is all much all respond under audio frequency gamut, such as thunder and it also can be allowed to produce response.In addition the application of the switch of acoustic control also major part be only used in the control of street lamp, other some electrical equipment are not used.
For the shortcoming of various sound control circuit on above-mentioned existing market, a kind of sensitivity can be carried out selection according to the situation of on-the-spot noise size and regulate, selection can be carried out to the frequency of certain sound to respond, the number of times of the sound of this sound and the circuit that can identify interval time are become to a kind of ideal chose of audio-switch, use so a kind of on-off circuit to reach higher environment resistant interference requirement, a kind of circuit like this can be used on the switch of various intelligent electric appliance widely, the intelligentized control method of electrical equipment is had great significance, therefore the sound control circuit of a kind of sensitivity and frequency-adjustable has become the needs developed, there is wide application market.
Summary of the invention
The invention provides a kind of sound control circuit, solve the problem misleading switch motion by noise that sound controling switch circuit is common.
In order to reach above-mentioned technique effect, technical scheme of the present invention is as follows:
A kind of sound control circuit, comprises acoustic pickup, amplifying circuit, controller U1, U2 and power supply; Acoustic pickup is connected with amplifying circuit, and amplifying circuit, controller U1, controller U2 and power supply are interconnected.
Further, described amplifying circuit comprises resistance R9, R10, R11, R14, R15, R16, triode Q2, electric capacity C8 and C9; One end of acoustic pickup is connected with one end of resistance R10, the other end ground connection of acoustic pickup, and the other end of resistance R10 connects power supply; Resistance R11 and R14 connects, and one end that resistance R11 is not connected with resistance R14 connects power supply, one end ground connection that resistance R14 is not connected with resistance R11; One end of resistance R9 is connected with the collector of triode Q2, the other end of resistance R9 connects power supply, the base stage of triode Q2 is connected by electric capacity C9 with the tie point between acoustic pickup and resistance R10, and the base stage of triode Q2 is also connected with the tie point between resistance R11 and resistance R14; The emitter of triode Q2 is connected with one end of resistance R15, and the other end of resistance R15 is connected with one end of resistance R16, the other end ground connection of resistance R16; Tie point between resistance R15 with resistance R16 is connected with the pin 30 of controller U1, and the tie point between resistance R9 with triode Q2 collector is connected with one end of electric capacity C8, and the other end of electric capacity C8 is connected with the pin 3 of controller U2.
Further, 1 pin of described controller U2 is by electric capacity C10 ground connection, 2 pins of controller U2 are by electric capacity C11 ground connection, 4 pins of controller U2 connect power supply, tie point between 4 pins of controller U2 and power supply is by electric capacity C13 ground connection, 5 pins of controller U2 are connected with one end of resistance R13, the other end of resistance R13 is connected with one end of electric capacity C12, the other end ground connection of electric capacity C12, tie point between resistance R13 with electric capacity C12 is connected with 6 pins of controller U2, the 7 pin ground connection of controller U2, 8 pins of controller U2 are connected with power supply by resistance R12, 8 pins of controller U2 are also connected with 29 pins of controller U1.
Further, 1 pin of described controller U1 is by electric capacity C14 ground connection, 2 pins of controller U1 are by electric capacity C15 ground connection, 3 pins of controller U1 are by electric capacity C16 ground connection, tie point between 3 pins of the tie point between 2 pins of controller U1 and electric capacity C15 and controller U1 and electric capacity C16 is connected by crystal oscillator Y1, 4 pins of controller U1 are connected by electric capacity C17 with 5 pins of control chip U1, tie point ground connection between 4 pins of control chip U1 and electric capacity C17, 6 pins of controller U1 are connected with power supply, tie point between 6 pins of controller U1 and power supply is by electric capacity C18 ground connection, 24 pins of controller U1 are by reset switch S1 ground connection, 25 pins of control chip U1 are connected with the anode of light emitting diode D1, the negative electrode of light emitting diode D1 is connected with one end of resistance R17, the other end ground connection of resistance R17.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
The present invention carrys out controlling resistance R16 by controller U1 and seals in amplifying circuit and short circuit over the ground, this sample loading mode just can control the enlargement factor of amplifying circuit, and then the adjustment realized the sensitivity of sound, this mode makes circuit structure simple, with low cost, is easy to extensive popularization.
Accompanying drawing explanation
Fig. 1 is circuit structure diagram of the present invention;
Fig. 2,3 is the circuit theory diagrams of the specific embodiment of the invention.
Embodiment
Accompanying drawing is exemplary illustration only, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
As shown in Figure 1, a kind of sound control circuit, comprises acoustic pickup, amplifying circuit, controller U1, U2 and power supply; Acoustic pickup is connected with amplifying circuit, and amplifying circuit, controller U1, controller U2 and power supply are interconnected.
As shown in Figure 2, amplifying circuit comprises resistance R9, R10, R11, R14, R15, R16, triode Q2, electric capacity C8 and C9; One end of acoustic pickup is connected with one end of resistance R10, the other end ground connection of acoustic pickup, and the other end of resistance R10 connects power supply; Resistance R11 and R14 connects, and one end that resistance R11 is not connected with resistance R14 connects power supply, one end ground connection that resistance R14 is not connected with resistance R11; One end of resistance R9 is connected with the collector of triode Q2, the other end of resistance R9 connects power supply, the base stage of triode Q2 is connected by electric capacity C9 with the tie point between acoustic pickup and resistance R10, and the base stage of triode Q2 is also connected with the tie point between resistance R11 and resistance R14; The emitter of triode Q2 is connected with one end of resistance R15, and the other end of resistance R15 is connected with one end of resistance R16, the other end ground connection of resistance R16; Tie point between resistance R15 with resistance R16 is connected with the pin 30 of controller U1, and the tie point between resistance R9 with triode Q2 collector is connected with one end of electric capacity C8, and the other end of electric capacity C8 is connected with the pin 3 of controller U2.
In the present embodiment, + 5V power supply is powered to acoustic pickup MK2 by resistance R10, voice signal completes the transfer process of voice signal to electric signal by acoustic pickup MK2, electric signal is through the capacitively coupled of electric capacity C9, deliver to the signal amplification input of base stage of triode Q2, resistance R11 and R14 forms bleeder circuit, signal is exported by the collector of triode Q2, again through coupling electric capacity C8, be sent to integrated circuit U2 signal input pin 3, the pin feature of controller U1 is utilized to control the enlargement factor of amplifying circuit in the present embodiment, when 30 pin of U1 are in high level, the resistance of this pin can think infinitely great, now resistance R16 goes here and there into amplifying circuit, increase the resistance of circuit.When 30 pin of U1 are in low level pin, this pin can think short circuit over the ground, now resistance R16 is shorted, reduce the resistance value of amplifying circuit, by this kind of way choice, namely can the enlargement factor of control circuit, namely can the sensitivity of regulating circuit.After the pin 3 of the signal input controller U2 of certain amplitude, the inside of chip is amplified signal, arranges and exports.
In Fig. 2, 1 pin of controller U2 is by electric capacity C10 ground connection, 2 pins of controller U2 are by electric capacity C11 ground connection, 4 pins of controller U2 connect power supply, tie point between 4 pins of controller U2 and power supply is by electric capacity C13 ground connection, 5 pins of controller U2 are connected with one end of resistance R13, the other end of resistance R13 is connected with one end of electric capacity C12, the other end ground connection of electric capacity C12, tie point between resistance R13 with electric capacity C12 is connected with 6 pins of controller U2, the 7 pin ground connection of controller U2, 8 pins of controller U2 are connected with power supply by resistance R12, 8 pins of controller U2 are also connected with 29 pins of controller U1.
1 pin of controller U1 is by electric capacity C14 ground connection, 2 pins of controller U1 are by electric capacity C15 ground connection, 3 pins of controller U1 are by electric capacity C16 ground connection, tie point between 3 pins of the tie point between 2 pins of controller U1 and electric capacity C15 and controller U1 and electric capacity C16 is connected by crystal oscillator Y1, 4 pins of controller U1 are connected by electric capacity C17 with 5 pins of control chip U1, tie point ground connection between 4 pins of control chip U1 and electric capacity C17, 6 pins of controller U1 are connected with power supply, tie point between 6 pins of controller U1 and power supply is by electric capacity C18 ground connection, 24 pins of controller U1 are by reset switch S1 ground connection, 25 pins of control chip U1 are connected with the anode of light emitting diode D1, the negative electrode of light emitting diode D1 is connected with one end of resistance R17, the other end ground connection of resistance R17.
In the present embodiment, controller U2 basic composition is phaselocked loop, quadrature phase wave detector (quadrature phase detector), amplifier and an output transistor, then comprises a current control oscillator, a phase detector and a feedback filter in phaselocked loop.The internal oscillator of controller U2 can by pin 5, the 6 outer meeting resistance R13 of U2 and capacitor C12, its oscillation frequency is changed in a wide-band, can make signal within the scope of a very narrow frequency range by electric capacity C10, the C11 on U2 pin 1 and 2, the relative frequency then exported by inner integrate phase wave detector comparator input signal and oscillator and phase place.When these two signals are identical (phase lock loop locks) is only had just to produce a stable output at U2 pin 8.
Represent the peripheral circuit of controller U1 in Fig. 3, electric capacity C14 connects the pin 1 of U1 as reset external circuits, and then C15, C16, Y1 form the oscillatory circuit of U1, for circuit working provides clock reference.By the button of S1, can input as the sensitivity control signal of circuit, output signal and export control by 30 pin of U1, the LED of the 25 foot control D1 of current sensitivity degree U1 indicates.The aural signal of the 29 pin receiving circuits of U1, by the programming Control to U1, can accomplish the recognition function of sound number of times.The more recognition method that the function applying this circuit can realize controls, and the sound of clapping one's hands as two sound " ", " " to interval responds, and in a certain time interval, continuous print two sound, can carry out switch.Due to the statistics sound number by single-chip microcomputer, can accomplish singly to can't clap and answer, continuous shooting does not respond more than 3 sound within a certain period of time, and such mode can allow circuit better be applicable to different application scenarios.
The corresponding same or analogous parts of same or analogous label;
Describe the only exemplary illustration of position relationship in accompanying drawing, the restriction to this patent can not be interpreted as;
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (4)
1. a sound control circuit, is characterized in that, comprises acoustic pickup, amplifying circuit, controller U1, U2 and power supply; Acoustic pickup is connected with amplifying circuit, and amplifying circuit, controller U1, controller U2 and power supply are interconnected.
2. sound control circuit according to claim 1, is characterized in that, described amplifying circuit comprises resistance R9, R10, R11, R14, R15, R16, triode Q2, electric capacity C8 and C9; One end of acoustic pickup is connected with one end of resistance R10, the other end ground connection of acoustic pickup, and the other end of resistance R10 connects power supply; Resistance R11 and R14 connects, and one end that resistance R11 is not connected with resistance R14 connects power supply, one end ground connection that resistance R14 is not connected with resistance R11; One end of resistance R9 is connected with the collector of triode Q2, the other end of resistance R9 connects power supply, the base stage of triode Q2 is connected by electric capacity C9 with the tie point between acoustic pickup and resistance R10, and the base stage of triode Q2 is also connected with the tie point between resistance R11 and resistance R14; The emitter of triode Q2 is connected with one end of resistance R15, and the other end of resistance R15 is connected with one end of resistance R16, the other end ground connection of resistance R16; Tie point between resistance R15 with resistance R16 is connected with the pin 30 of controller U1, and the tie point between resistance R9 with triode Q2 collector is connected with one end of electric capacity C8, and the other end of electric capacity C8 is connected with the pin 3 of controller U2.
3. sound control circuit according to claim 2, it is characterized in that, 1 pin of described controller U2 is by electric capacity C10 ground connection, 2 pins of controller U2 are by electric capacity C11 ground connection, 4 pins of controller U2 connect power supply, tie point between 4 pins of controller U2 and power supply is by electric capacity C13 ground connection, 5 pins of controller U2 are connected with one end of resistance R13, the other end of resistance R13 is connected with one end of electric capacity C12, the other end ground connection of electric capacity C12, tie point between resistance R13 with electric capacity C12 is connected with 6 pins of controller U2, the 7 pin ground connection of controller U2, 8 pins of controller U2 are connected with power supply by resistance R12, 8 pins of controller U2 are also connected with 29 pins of controller U1.
4. sound control circuit according to claim 3, it is characterized in that, 1 pin of described controller U1 is by electric capacity C14 ground connection, 2 pins of controller U1 are by electric capacity C15 ground connection, 3 pins of controller U1 are by electric capacity C16 ground connection, tie point between 3 pins of the tie point between 2 pins of controller U1 and electric capacity C15 and controller U1 and electric capacity C16 is connected by crystal oscillator Y1, 4 pins of controller U1 are connected by electric capacity C17 with 5 pins of control chip U1, tie point ground connection between 4 pins of control chip U1 and electric capacity C17, 6 pins of controller U1 are connected with power supply, tie point between 6 pins of controller U1 and power supply is by electric capacity C18 ground connection, 24 pins of controller U1 are by reset switch S1 ground connection, 25 pins of control chip U1 are connected with the anode of light emitting diode D1, the negative electrode of light emitting diode D1 is connected with one end of resistance R17, the other end ground connection of resistance R17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165271.7A CN104880980B (en) | 2015-04-09 | 2015-04-09 | A kind of sound control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165271.7A CN104880980B (en) | 2015-04-09 | 2015-04-09 | A kind of sound control circuit |
Publications (2)
| Publication Number | Publication Date |
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| CN104880980A true CN104880980A (en) | 2015-09-02 |
| CN104880980B CN104880980B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510165271.7A Active CN104880980B (en) | 2015-04-09 | 2015-04-09 | A kind of sound control circuit |
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| CN (1) | CN104880980B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728534A (en) * | 2017-11-08 | 2018-02-23 | 延边大学 | Not by sensitivity of microphone and the audio-switch and control method of Environmental Noise Influence |
| CN109219216A (en) * | 2018-09-25 | 2019-01-15 | 新克科技有限公司 | A kind of service life intelligent protection method of household induction street lamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0682575A (en) * | 1992-09-03 | 1994-03-22 | Sekisui Chem Co Ltd | Voice controller for illumination/clock |
| CN200966040Y (en) * | 2006-11-14 | 2007-10-24 | 湖北师范学院 | A single audio sound control switch |
| CN201690434U (en) * | 2010-04-27 | 2010-12-29 | 上海第二工业大学 | Anti-interference voice operated switch device |
| CN203814003U (en) * | 2014-03-02 | 2014-09-03 | 广东瑞德智能科技股份有限公司 | Sound control circuit of LED stage lighting |
| CN203911887U (en) * | 2014-02-22 | 2014-10-29 | 温州市华伦电器有限公司 | Intelligent sound control switch |
-
2015
- 2015-04-09 CN CN201510165271.7A patent/CN104880980B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0682575A (en) * | 1992-09-03 | 1994-03-22 | Sekisui Chem Co Ltd | Voice controller for illumination/clock |
| CN200966040Y (en) * | 2006-11-14 | 2007-10-24 | 湖北师范学院 | A single audio sound control switch |
| CN201690434U (en) * | 2010-04-27 | 2010-12-29 | 上海第二工业大学 | Anti-interference voice operated switch device |
| CN203911887U (en) * | 2014-02-22 | 2014-10-29 | 温州市华伦电器有限公司 | Intelligent sound control switch |
| CN203814003U (en) * | 2014-03-02 | 2014-09-03 | 广东瑞德智能科技股份有限公司 | Sound control circuit of LED stage lighting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728534A (en) * | 2017-11-08 | 2018-02-23 | 延边大学 | Not by sensitivity of microphone and the audio-switch and control method of Environmental Noise Influence |
| CN109219216A (en) * | 2018-09-25 | 2019-01-15 | 新克科技有限公司 | A kind of service life intelligent protection method of household induction street lamp |
| CN109219216B (en) * | 2018-09-25 | 2020-07-10 | 新克科技有限公司 | Intelligent life protection method for household induction street lamp |
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| Publication number | Publication date |
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| CN104880980B (en) | 2017-10-13 |
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Denomination of invention: A voice controlled circuit Effective date of registration: 20230725 Granted publication date: 20171013 Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Pledgor: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2023980049766 |