CN105045186A - Buzzer volume control apparatus and method for controlling buzzer volume by using the same, and household appliance - Google Patents
Buzzer volume control apparatus and method for controlling buzzer volume by using the same, and household appliance Download PDFInfo
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- CN105045186A CN105045186A CN201510502462.8A CN201510502462A CN105045186A CN 105045186 A CN105045186 A CN 105045186A CN 201510502462 A CN201510502462 A CN 201510502462A CN 105045186 A CN105045186 A CN 105045186A
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- hummer
- human
- sound volume
- microcontroller
- signal
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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
-
- 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
- G05B2219/25—Pc structure of the system
- G05B2219/25314—Modular structure, modules
Abstract
The invention discloses a buzzer volume control apparatus and method for controlling a buzzer volume by using the same, and a household appliance. The apparatus is composed of a buzzer BL1, a first resistor R1, a micro controller and a signal adjustment module. The buzzer BL1 is connected with the micro controller by the first resistor R1 and the other end of the buzzer BL1 is grounded. The micro controller is also electrically connected with the signal adjustment module. According to the invention, buzzing volume levels can be obtained by the signal adjustment module; PWM signals with different duty ratios are outputted to the buzzer according to the buzzing volume levels to control the buzzer to make buzzing sound with different volume levels. Therefore, the buzzer volume control can be realized without the need to changing the hardware circuit.
Description
Technical field
The present invention relates to volume controlling technique field, be specifically related to a kind of hummer sound volume control device and adopt this device to carry out method and the household electrical appliance of the control of hummer volume.
Background technology
Household electrical appliance, such as, electric cooker uses hummer as microphone device usually, the conventional drive signal of hummer, the frequency signal being 50% by a dutycycle drives, but the size of its sound can not adjust, for adjustment sound size is all that change current-limiting resistance realizes usually, trouble so very, because need to change hardware circuit, and in user's use, some users like buzzing volume larger, some users like buzzing volume a little bit smaller, the mode used at present can not regulate with software again, not humane, for user's pain spot all the time.Moreover electric cooker prompt tone needs greatly a bit sometimes, sometimes need a little bit smaller, such as people is on electric cooker side, and sound wishes point, and when people leaves electric cooker, because distance is not often heard, now wishes that sound is a little bigger, also hommization not.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of hummer sound volume control device and adopts this device to carry out method and the household electrical appliance of the control of hummer volume, do not need to change hardware circuit, adopt the drive singal that frequency is constant, dutycycle changes to drive hummer to send the buzzing of different volume.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
On the one hand, the invention provides a kind of hummer sound volume control device, described device comprises hummer BL1, the first resistance R1, microcontroller and signal-adjusting module;
One end of described hummer BL1 is electrically connected with described microcontroller by the first resistance R1, the other end ground connection of described hummer BL1; Described microcontroller is also electrically connected with described signal-adjusting module;
Described microcontroller to hummer BL1 output pwm signal, controls the adjustment of hummer BL1 volume by described first resistance R1 by the dutycycle adjusting pwm signal.
The beneficial effect of device provided by the invention is: can obtain buzzing level of sound volume according to signal-adjusting module, export the pwm signal of different duty to hummer according to buzzing level of sound volume, control the buzzing that hummer sends different volume, do not need to change hardware circuit, just can realize the control of hummer volume.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described signal-adjusting module is human inductor and/or human-computer interaction interface.
Further, when described signal-adjusting module is human inductor, described microcontroller adjusts hummer level of sound volume automatically according to the distance of human body and human inductor, and it specifically comprises:
When the distance of human body and human inductor is less than or equal to predetermined distance range, current hummer level of sound volume is reduced the first predetermined quantity grade;
When the distance of human body and human inductor is greater than predetermined distance range, current hummer level of sound volume is raised the second predetermined quantity grade.
Described further beneficial effect is: microcontroller can adjust hummer level of sound volume automatically according to the distance of human body and human inductor.
Further, described human-computer interaction interface comprises display circuit and key circuit, and described device also comprises power circuit, and described power circuit is electrically connected with described microcontroller, to power to described microcontroller.
Further, described hummer BL1 is piezo buzzer or electromagnetic buzzer; When described hummer BL1 is piezo buzzer, described device also comprises:
Second resistance R2, described second resistance R2 is in parallel with described piezo buzzer;
A common end grounding of described second resistance R2 and described piezo buzzer, another common port is electrically connected with described first resistance R1.
Described further beneficial effect is: hummer can be polytype hummer, for dissimilar hummer, can do some little improvement to circuit, can adapt to dissimilar hummer.
On the other hand, the invention provides a kind of method adopting hummer sound volume control device to carry out the control of hummer volume, described hummer sound volume control device comprises hummer BL1, the first resistance R1, microcontroller and signal-adjusting module, described hummer BL1 is electrically connected with described microcontroller by the first resistance R1, described microcontroller is also electrically connected with signal-adjusting module, and described method comprises:
S1, microcontroller obtain hummer level of sound volume according to signal-adjusting module;
S2, according to hummer level of sound volume, microcontroller exports corresponding pwm signal by the first resistance R1 to hummer BL1, and control the buzzing that hummer BL1 sends corresponding volume, wherein, the dutycycle of described pwm signal is corresponding with described hummer level of sound volume.
The beneficial effect of method provided by the invention is: can obtain buzzing level of sound volume according to signal-adjusting module, export the pwm signal of different duty to hummer according to buzzing level of sound volume, control the buzzing that hummer sends different volume, do not need to change hardware circuit, just can realize the control of hummer volume.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described signal-adjusting module is human inductor and/or human-computer interaction interface;
When described signal-adjusting module is human inductor, described step S1 specifically comprises:
The human-induced signal sensed is transferred to microcontroller by S11a, human inductor;
When S12a, described microcontroller receive human-induced signal, filtering and identification are carried out to described human-induced signal, obtain the distance of human body and described human inductor according to the intensity of human-induced signal, and automatically adjust hummer level of sound volume according to the distance of human body and described human inductor.
When described signal-adjusting module is human-computer interaction interface, described step S1 specifically comprises:
S11b, microcontroller receive the hummer level of sound volume inputted by human-computer interaction interface.
Described further beneficial effect is: microcontroller can obtain hummer level of sound volume in several ways, namely hummer level of sound volume can automatically be adjusted according to human-induced signal, also can receive the hummer level of sound volume inputted by human-computer interaction interface, dirigibility is high.
Further, microcontroller described in described step S12a automatically adjusts hummer level of sound volume according to the distance of human body and described human inductor and specifically comprises:
When the distance of human body and human inductor is less than or equal to predetermined distance range, current hummer level of sound volume is reduced the first predetermined quantity grade;
When the distance of human body and human inductor is greater than predetermined distance range, current hummer level of sound volume is raised the second predetermined quantity grade.
Described further beneficial effect is: microcontroller can adjust hummer level of sound volume automatically according to the distance of human body and human inductor.
Further, when the distance of human body and described human inductor is less than or equal to predeterminable range scope, makes acousto-optic by human-computer interaction interface and remind.
Described further beneficial effect is: when human body is less than or equal to predeterminable range scope, is reminded carry out man-machine interaction by acousto-optic.
Again on the one hand, the invention provides a kind of household electrical appliance, described household electrical appliance comprise hummer sound volume control device.
Profitable effect of the present invention is: the hummer sound volume control device provided can be applied in various household electrical appliance, and applicability is strong, applied widely.
Accompanying drawing explanation
Fig. 1 is a kind of hummer sound volume control device schematic diagram of the embodiment of the present invention one;
Fig. 2 is a kind of hummer sound volume control device schematic diagram of the embodiment of the present invention two;
Fig. 3 is a kind of method flow diagram adopting hummer sound volume control device to carry out the control of hummer volume of the embodiment of the present invention three;
Fig. 4 is a kind of home appliance structure schematic diagram of the embodiment of the present invention five.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment one, a kind of hummer sound volume control device.Below in conjunction with Fig. 1, device provided by the invention is described.
See Fig. 1, the device that the present embodiment provides comprises hummer BL1, the first resistance R1, microcontroller and signal-adjusting module, and one end of described hummer BL1 is electrically connected with described microcontroller by the first resistance R1, the other end ground connection of described hummer BL1; Described microcontroller is also electrically connected with described signal-adjusting module.Signal-adjusting module is human inductor and/or human-computer interaction interface, and wherein, human inductor is infrared inductor, and described first resistance R1 is current-limiting resistance.When signal-adjusting module is human-computer interaction interface, this human-computer interaction interface comprises display circuit and key circuit, and the device that the present embodiment provides also comprises power circuit, and described power circuit is electrically connected with microcontroller, to power to microcontroller.The hummer BL1 provided in the present embodiment is electromagnetic buzzer.
Described microcontroller to hummer BL1 output pwm signal, controls the adjustment of hummer BL1 volume by described first resistance R1 by the dutycycle adjusting pwm signal.During specific implementation, when described signal-adjusting module is human inductor, microcontroller adjusts hummer level of sound volume automatically according to the distance of human body and described human inductor, it specifically comprises: when described microcontroller judges that the distance of human body and described human inductor is less than or equal to predetermined distance range, by low for current buzzing volume level down the first predetermined quantity grade; When described microcontroller judges that the distance of human body and described human inductor is greater than predetermined distance range, current buzzing level of sound volume is raised the second predetermined quantity grade.
Embodiment two, a kind of hummer sound volume control device.
See Fig. 2, the device that the present embodiment provides and the device that previous embodiment one provides similar, unique difference is that the hummer BL1 provided in the present embodiment is piezo buzzer, when hummer BL1 is piezo buzzer, the device that the present embodiment provides also comprises the second resistance R2, and described second resistance R2 is in parallel with described piezo buzzer; A common end grounding of described second resistance R2 and described piezo buzzer, another common port is electrically connected with described first resistance R1.Second resistance is in parallel with piezo buzzer, the bleeder resistance in coating-forming voltage loop.
Embodiment three, a kind of method adopting hummer sound volume control device to carry out the control of hummer volume.Below in conjunction with Fig. 3, the method that the present embodiment provides is described.
Concrete, hummer sound volume control device at least comprises hummer BL1, the first resistance R1, microcontroller and signal-adjusting module, described hummer BL1 is electrically connected with described microcontroller by the first resistance R1, and described microcontroller is also electrically connected with signal-adjusting module.
The method that the present embodiment provides specifically can obtain hummer level of sound volume see Fig. 3, S1, microcontroller according to signal-adjusting module.
Concrete, the signal-adjusting module in the present embodiment is human inductor and/or human-computer interaction interface, and wherein, human inductor is infrared inductor.When signal-adjusting module is human inductor, the human-induced signal sensed is transferred to microcontroller by human inductor; When described microcontroller receives human-induced signal, filtering and identification are carried out to described human-induced signal, obtain the distance of human body and described human inductor according to the intensity of human-induced signal, and automatically adjust hummer level of sound volume according to the distance of human body and described human inductor.Detailed process is: after microcontroller receives the human-induced signal of human inductor transmission, human-induced signal is filtered and identifies, and judge the distance (distance also namely between human body and hummer) between human body and human inductor according to the intensity of human-induced signal, then hummer level of sound volume is automatically adjusted according to the distance between human body and human inductor, be specially, when recognizing the distance between human body and human inductor and being less than or equal to predeterminable range scope, namely human body is when human inductor, reduce hummer level of sound volume, such as, current hummer level of sound volume is reduced the first predetermined quantity grade, when distance between human body and human inductor is greater than predeterminable range scope, increases hummer level of sound volume, such as, current hummer level of sound volume is raised the second predetermined quantity grade.In addition, when the distance between human body and human inductor is less than or equal to predeterminable range scope, microcontroller can carry out acoustic-optic indicator prompting by the display circuit on human-computer interaction interface, realizes man-machine interaction.
When signal-adjusting module is human-computer interaction interface, microcontroller receives the hummer level of sound volume inputted by human-computer interaction interface.Such as, user can by the key circuit on human-computer interaction interface to microcontroller input hummer level of sound volume.
S2, according to hummer level of sound volume, microcontroller exports corresponding pwm signal by the first resistance R1 to hummer BL1, and control the buzzing that hummer BL1 sends corresponding volume, wherein, the dutycycle of described pwm signal is corresponding with described hummer level of sound volume.
Concrete, according to the hummer level of sound volume of setting, microcontroller exports corresponding pwm signal by the first resistance R1 to hummer BL1, controls the buzzing (sound) that hummer BL1 sends corresponding volume.Wherein, the dutycycle of the pwm signal that microcontroller exports to hummer BL1 is corresponding with the hummer level of sound volume of setting, when hummer level of sound volume reduces, to the dutycycle reduction of the pwm signal that hummer BL1 exports; Otherwise, when hummer level of sound volume raises, to the dutycycle increase of the pwm signal that hummer BL1 exports.Such as, when PWM exports 4KHz frequency, 50% duty cycle signals, now hummer volume is larger; When PWM exports 4KHz, 25% duty cycle signals, now hummer volume is less.In actual applications, the maximum duty cycle of pwm signal is no more than 50% because adopt dutycycle be the pwm signal of 50% to drive hummer BL1, the buzzing volume of hummer BL1 is enough large.
Embodiment four, a kind of household electrical appliance.
See Fig. 4, the household electrical appliance that the present embodiment provides comprise the hummer sound volume control device in previous embodiment one and previous embodiment two, and correlation technique feature see embodiment one and embodiment two, can not repeat them here.
A kind of hummer sound volume control device provided by the invention and adopt this device to carry out method and the household electrical appliance of the control of hummer volume, microcontroller obtains hummer level of sound volume according to signal-adjusting module, and drive hummer with the buzzing making hummer send different volume according to the pwm signal that hummer level of sound volume exports duty ratio corresponding to hummer, hummer volume can be controlled by the output of pwm signal, adopt the mode that frequency is constant, dutycycle changes to control volume; Microcontroller can obtain hummer level of sound volume in several ways, such as, can judge that the distance between human body and human inductor regulates hummer level of sound volume automatically by human-induced signal, or receive the hummer level of sound volume inputted by human-computer interaction interface, dirigibility is high; In addition, when being judged that by human-induced signal the distance between human body and human inductor arrives within the scope of predeterminable range, carrying out acousto-optic prompting, realizing man-machine interaction.
In addition, hummer sound volume control device provided by the invention can be applied on various household electrical appliance, also can apply to all fields of using hummer, and applicability is strong, and application is extensive.
In the description of this instructions, concrete grammar, device or feature that the description of reference term " embodiment one ", " embodiment two ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, method, device or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a hummer sound volume control device, is characterized in that, described device comprises hummer BL1, the first resistance R1, microcontroller and signal-adjusting module;
One end of described hummer BL1 is electrically connected with described microcontroller by the first resistance R1, the other end ground connection of described hummer BL1; Described microcontroller is also electrically connected with described signal-adjusting module;
Described microcontroller to hummer BL1 output pwm signal, controls the adjustment of hummer BL1 volume by described first resistance R1 by the dutycycle adjusting pwm signal.
2. hummer sound volume control device as claimed in claim 1, it is characterized in that, described signal-adjusting module is human inductor and/or human-computer interaction interface.
3. hummer sound volume control device as claimed in claim 2, it is characterized in that, when described signal-adjusting module is human inductor, described microcontroller adjusts hummer level of sound volume automatically according to the distance of human body and human inductor, and it specifically comprises:
When the distance of human body and human inductor is less than or equal to predetermined distance range, current hummer level of sound volume is reduced the first predetermined quantity grade;
When the distance of human body and human inductor is greater than predetermined distance range, current hummer level of sound volume is raised the second predetermined quantity grade.
4. hummer sound volume control device as claimed in claim 2, it is characterized in that, described human-computer interaction interface comprises display circuit and key circuit, and described device also comprises:
Power circuit, described power circuit is electrically connected with described microcontroller, to power to described microcontroller.
5. hummer sound volume control device as claimed in claim 1, it is characterized in that, described hummer BL1 is piezo buzzer or electromagnetic buzzer; When described hummer BL1 is piezo buzzer, described device also comprises:
Second resistance R2, described second resistance R2 is in parallel with described piezo buzzer;
First common end grounding of described second resistance R2 and described piezo buzzer, second common port is electrically connected with described first resistance R1.
6. the method adopting hummer sound volume control device to carry out the control of hummer volume, described hummer sound volume control device comprises hummer BL1, the first resistance R1, microcontroller and signal-adjusting module, described hummer BL1 is electrically connected with described microcontroller by the first resistance R1, described microcontroller is also electrically connected with signal-adjusting module, it is characterized in that, described method comprises:
S1, microcontroller obtain hummer level of sound volume according to signal-adjusting module;
S2, according to hummer level of sound volume, microcontroller exports corresponding pwm signal by the first resistance R1 to hummer BL1, and control the buzzing that hummer BL1 sends corresponding volume, wherein, the dutycycle of described pwm signal is corresponding with described hummer level of sound volume.
7. the method adopting hummer sound volume control device to carry out the control of hummer volume as claimed in claim 6, it is characterized in that, described signal-adjusting module is human inductor and/or human-computer interaction interface;
When described signal-adjusting module is human inductor, described step S1 specifically comprises:
The human-induced signal sensed is transferred to microcontroller by S11a, human inductor;
When S12a, described microcontroller receive human-induced signal, filtering and identification are carried out to described human-induced signal, obtain the distance of human body and described human inductor according to the intensity of human-induced signal, and automatically adjust hummer level of sound volume according to the distance of human body and described human inductor;
When described signal-adjusting module is human-computer interaction interface, described step S1 specifically comprises:
S11b, microcontroller receive the hummer level of sound volume inputted by human-computer interaction interface.
8. the method adopting hummer sound volume control device to carry out the control of hummer volume as claimed in claim 7, it is characterized in that, microcontroller described in described step S12a automatically adjusts hummer level of sound volume according to the distance of human body and described human inductor and specifically comprises:
When the distance of human body and human inductor is less than or equal to predetermined distance range, current hummer level of sound volume is reduced the first predetermined quantity grade;
When the distance of human body and human inductor is greater than predetermined distance range, current hummer level of sound volume is raised the second predetermined quantity grade.
9. the method adopting hummer sound volume control device to carry out the control of hummer volume as claimed in claim 8, it is characterized in that, described method also comprises:
When the distance of human body and described human inductor is less than or equal within the scope of predeterminable range, makes acousto-optic by human-computer interaction interface and remind.
10. household electrical appliance, is characterized in that, described household electrical appliance comprise:
Hummer sound volume control device as described in any one of claim 1-5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510502462.8A CN105045186A (en) | 2015-08-14 | 2015-08-14 | Buzzer volume control apparatus and method for controlling buzzer volume by using the same, and household appliance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510502462.8A CN105045186A (en) | 2015-08-14 | 2015-08-14 | Buzzer volume control apparatus and method for controlling buzzer volume by using the same, and household appliance |
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| CN201510502462.8A Pending CN105045186A (en) | 2015-08-14 | 2015-08-14 | Buzzer volume control apparatus and method for controlling buzzer volume by using the same, and household appliance |
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Cited By (1)
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| CN108806658A (en) * | 2017-05-03 | 2018-11-13 | 深圳市帝迈生物技术有限公司 | A kind of blood analyser and its buzzer volume adjust driving circuit |
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