CN104811859A - Buzzer sound control method, device and controller - Google Patents
Buzzer sound control method, device and controller Download PDFInfo
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Abstract
The invention discloses a buzzer sound control method, a buzzer sound control device and a buzzer sound control controller, wherein the method comprises the following steps: detecting the noise of the surrounding environment in real time; setting the duty ratio of a pulse width modulation signal for controlling the sound intensity of the buzzer according to the noise intensity; and according to the duty ratio, a pulse width modulation signal is output, and the buzzer is controlled to emit sound with corresponding magnitude. The pulse width modulation signal duty ratio used for controlling the sound of the buzzer is set according to the noise of the surrounding environment by detecting the noise of the surrounding environment in real time so as to adjust the decibel of the sound of the buzzer, so that the buzzer is controlled to emit different decibels of sound under different noise environments, and the problem of inconvenience caused by the fact that the sound emitted by the existing buzzer arranged on the controller is fixed is effectively solved.
Description
Technical field
The present invention relates to airconditioning control field, particularly relate to a kind of buzzer sound sound controlling method, device and controller.
Background technology
By arranging buzzer at controller (comprising line control machine, Centralized Controller etc.), when making user by button (or other modes) operation control, the buzzer arranged on the controller sends sound, to point out user operation success, ensure that the validity of user operation.Usually, the sound size that setting buzzer on the controller sends is fixing, this is just easy to make, under quiet environment, the people had a rest near the sound considerable influence of buzzer, in a noisy environment, user likely can't hear the sound that buzzer sends, cause repeatable operation, make troubles.
Summary of the invention
Based on this, be necessary the problem of the inconvenience that the sound size sent for the buzzer arranged on the controller fixedly causes, a kind of buzzer sound sound controlling method, device and controller are provided.
A kind of buzzer sound sound controlling method, comprises the steps:
S100, detects the size of the noise of surrounding environment in real time;
S200, according to the size of described noise, arranges the duty ratio of the pulse width modulating signal for controlling buzzer sound size; And according to described duty ratio, export described pulse width modulating signal, control the sound that described buzzer sends corresponding size.
As a kind of embodiment, described step S200 comprises the steps:
S210, when described noise is less than or equal to XdB, arranging described buzzer sound size is X1dB, and wherein, described X1 is greater than described X;
S220, according to the buzzer sound of described X1dB size, arranging described pulse width modulating signal duty ratio is the first duty ratio;
S230, according to described first duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described X1dB.
Preferably, described step S200 also comprises the steps:
S210 ', when described noise is greater than described XdB and is less than YdB, calculating described buzzer sound size is hdB, and wherein, the size+n of noise described in described h=, n are preset parameter value, and described Y is greater than described X;
S220 ', according to the buzzer sound of described hdB size, the duty ratio arranging described pulse width modulating signal is the second duty ratio;
S230 ', according to described second duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described hdB.
Preferably, perform that described step S220 ' is front also to be comprised the steps:
S211 ', whether the size and the n sum h that detect described noise are greater than Y1;
S212 ', when described h is greater than described Y1, controls described h and equals described Y1;
S213 ', when described h is less than or equal to described Y1, controls described h and remains unchanged;
Wherein, described Y1 is greater than described Y.
More excellent, described step S200 also comprises the steps:
S210 ' ', when described noise is more than or equal to described YdB, arranging described buzzer sound size is described Y1dB;
S220 ' ', according to the buzzer sound of described Y1dB size, the duty ratio arranging described pulse width modulating signal is the 3rd duty ratio;
S230 ' ', according to described 3rd duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described Y1dB.
The explanation of value, also comprises the steps: before performing described step S100
S010, detects the running status being provided with the controller of buzzer, when the running status of described controller is the state of opening buzzer sound automatic control function, performs described step S100; When the running status of described controller is the state of not opening described buzzer sound automatic control function, perform step S100 ';
S100 ', is set to preset value by described buzzer sound size;
S200 ', according to the buzzer sound of described preset value, the duty ratio arranging described pulse width modulating signal is the 4th duty ratio; And according to described 4th duty ratio, export described pulse width modulating signal, control described buzzer and send the sound that size is described preset value.
Accordingly, for realizing above-mentioned buzzer sound sound controlling method, present invention also offers a kind of buzzer sound control apparatus, comprise noise measuring module, micro-control module and buzzer, the output of described noise measuring module is connected with the input of described micro-control module, the output of described micro-control module is connected with the input of described buzzer, wherein:
Described noise measuring module, for detecting the size of the noise of surrounding environment in real time;
Described micro-control module comprises the first processing unit and pwm unit, wherein:
Described first processing unit, for the size according to described noise, arranges the duty ratio of the pulse width modulating signal for controlling buzzer sound size;
Described pwm unit, for according to described duty ratio, exports described pulse width modulating signal, controls the sound that described buzzer sends corresponding size.
As a kind of embodiment, described first processing unit comprises first and arranges subelement and the first process subelement, and described pwm unit comprises the first modulation subunit, wherein:
Described first arranges subelement, and for when described noise is less than or equal to XdB, arranging described buzzer sound size is X1dB, and wherein, described X1 is greater than described X;
Described first process subelement, for the buzzer sound according to described X1dB size, the duty ratio arranging described pulse width modulating signal is the first duty ratio;
Described first modulation subunit, for according to described first duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described X1dB.
Preferably, described first processing unit also comprises the second computation subunit and the second process subelement, and described pwm unit also comprises the second modulation subunit, wherein:
Described second computation subunit, for when described noise is greater than described XdB and is less than YdB, calculating described buzzer sound size is hdB, and wherein, the size+n of noise described in described h=, n are preset parameter value, and described Y is greater than described X;
Described second process subelement, for the buzzer sound according to described hdB size, the duty ratio arranging described pulse width modulating signal is the second duty ratio;
Described second modulation subunit, for according to described second duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described hdB.
Preferably, described first processing unit also comprises the first detection sub-unit, first and controls subelement and the second control subelement, wherein:
Whether described first detection sub-unit, be greater than Y1 for the size and n sum h detecting described noise;
Described first controls subelement, for when described h is greater than described Y1, controls described h and equals described Y1;
Described second controls subelement, for when described h is less than or equal to described Y1, controls described h and remains unchanged;
Wherein, described Y1 is greater than described Y.
More excellent, described first processing unit also comprises the 3rd and arranges subelement and the 3rd process subelement, and described pwm unit also comprises the 3rd modulation subunit, wherein:
Described 3rd arranges subelement, and for when described noise is more than or equal to described YdB, arranging described buzzer sound size is described Y1dB;
Described 3rd process subelement, for the buzzer sound according to described Y1dB size, the duty ratio arranging described pulse width modulating signal is the 3rd duty ratio;
Described 3rd modulation subunit, for according to described 3rd duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described Y1dB.
The explanation of value, described micro-control module also comprises the first detecting unit, the first setting unit, the second setting unit and the first modulating unit, wherein:
Described first detecting unit, for detecting the running status of the controller being provided with buzzer;
Described first setting unit, during for being the state of not opening described buzzer sound automatic control function when the running status of described controller, is set to preset value by described buzzer sound size;
Described second setting unit, for the buzzer sound according to described preset value, the duty ratio arranging described pulse width modulating signal is the 4th duty ratio;
Described first modulating unit, for according to described 4th duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described preset value.
Accordingly, present invention also offers a kind of controller, comprise any one buzzer sound control apparatus as above.
Buzzer sound sound controlling method provided by the invention, device and controller, wherein buzzer sound sound controlling method is by detecting the size of the noise of surrounding environment in real time, according to the size of the noise of surrounding environment, the duty ratio of the pulse width modulating signal for controlling buzzer sound size is set, and according to the duty ratio of pulse width modulating signal arranged, output pulse width modulation signal, control the sound that buzzer sends corresponding size, thus under realizing different noisy environments, control the sound that buzzer sends different size, efficiently solve the problem of the inconvenience that sound size that existing setting buzzer on the controller sends fixedly causes.
Accompanying drawing explanation
Fig. 1 is buzzer sound sound controlling method one specific embodiment flow chart;
Fig. 2 is another specific embodiment flow chart of buzzer sound sound controlling method;
Fig. 3 is buzzer sound control apparatus one specific embodiment structural representation;
Fig. 4 is another specific embodiment structural representation of buzzer sound control apparatus.
Embodiment
For making technical solution of the present invention clearly, below in conjunction with drawings and the specific embodiments, the present invention is described in further details.
See Fig. 1, a kind of buzzer sound sound controlling method, comprises the steps:
S100, detects the size of the noise of surrounding environment in real time;
S200, according to the size of noise, arranges the duty ratio of the pulse width modulating signal for controlling buzzer sound size; And according to duty ratio, output pulse width modulation signal, controls the sound that buzzer sends corresponding size.
Buzzer sound sound controlling method provided by the invention, by detecting the noise of surrounding environment in real time, according to the size of the noise of surrounding environment, the duty ratio of the pulse width modulating signal for controlling buzzer sound size is set, and according to the duty ratio of pulse width modulating signal arranged, output pulse width modulation signal, the size of the sound regulating buzzer to send, make buzzer can be under various circumstances, send the sound of different decibel, achieve the controllability of buzzer sound, efficiently solve the inconvenience problem that existing buzzer sound size fixedly causes.
See Fig. 2, preferably, as another specific embodiment of buzzer sound sound controlling method of the present invention, also comprise the steps: before performing step S100
S010, detects the running status being provided with the controller of buzzer, when the running status of controller is the state of opening buzzer sound automatic control function, performs step S100; When the running status of controller is the state of not opening buzzer sound automatic control function, perform step S100 ';
S100, detects the size of the noise of surrounding environment in real time;
S200, according to the size of noise, arranges the duty ratio of the pulse width modulating signal for controlling buzzer sound size; And according to duty ratio, output pulse width modulation signal, controls the sound that buzzer sends corresponding size, and returns step S100;
S100 ', is set to preset value by buzzer sound size;
S200 ', according to the buzzer sound of preset value, the duty ratio arranging pulse width modulating signal is the 4th duty ratio; And according to the 4th duty ratio, output pulse width modulation signal, controls buzzer and sends the sound that size is preset value.
Further, when controller being provided with buzzer, first detect this controller and whether start buzzer sound automatic control function, if this controller has started buzzer sound automatic control function, the noise of surrounding environment is then automatically detected in real time by controller, and regulate the size of buzzer sound in real time according to the noise detected, flexible and convenient operation; If this control not enabled buzzer sound automatic control function, then buzzer sound size is manually set to preset value, and according to this preset value, obtain the duty ratio of pulse width modulating signal corresponding thereto, the size realizing the sound regulating buzzer to send is preset value, thus allow user be set to by buzzer sound more intuitively to feel comfortable scope, simple to operate.
What deserves to be explained is, as the another specific embodiment of buzzer sound sound controlling method of the present invention, also comprise the steps: before performing step S010
Step S001, detects whether there is the action that operation setting has the controller of buzzer, when existence operates the action of this controller, performs step S010; When there is not the action of this controller of operation, then control the buzzer arranged on the controller and do not send any sound.
Preferably, as buzzer sound sound controlling method one specific embodiment of the present invention, step S200 also comprises the steps:
S210, when noise is less than or equal to XdB, arranging buzzer sound size is X1dB, and wherein, X1 is greater than X;
S220, according to the buzzer sound of X1dB size, the duty ratio arranging pulse width modulating signal is the first duty ratio;
S230, according to the first duty ratio, output pulse width modulation signal, controls buzzer and sends the sound that size is X1dB.
At this, it should be noted that, X1 is greater than X, and X1 is the first set point; As a kind of embodiment, when the value of X is 20, the value of X1 can be set to 25; When detecting that the noise of surrounding environment is less than or equal to 20dB in real time, i.e. S
induring≤20dB, S
out=25dB, be namely less than or equal to the environment of 20dB at noise under, buzzer sound size is 25dB.Then, according to the corresponding relation database of the duty ratio of buzzer sound size and pulse width modulating signal, the duty ratio of pulse width modulating signal corresponding when to search buzzer sound size be 25dB is the first duty ratio.
The duty ratio arranging pulse width modulating signal is the first duty ratio, exports the pulse width modulating signal of the first duty ratio to buzzer, controls buzzer and sends the sound that size is 25dB.
Time it makes that environment is more quiet around, by regulating buzzer to send less sound, under guaranteeing the prerequisite of alert successful operation, having a rest near can not having influence on or the people of the environment that needs peace and quiet.
Wherein, S
infor the size of the noise of surrounding environment detected, unit is decibel (dB), S
outfor the size of buzzer sound, unit is decibel (dB); According to the actual impression of people to sound size, S
outspan be [25dB, 85dB].
As a kind of embodiment, according to the duty ratio of pulse width modulating signal, output pulse width modulation signal, it can be obtained by the database data of testing the correspondence recorded.As a kind of embodiment, in the embodiment of the present invention, measure the corresponding sound size of buzzer under multiple pulse width modulating signal different duty, then obtained the corresponding relation of buzzer sound size and duty ratio by linear fit, and corresponding relation is stored into for subsequent use in database searching.
Preferably, as the another specific embodiment of buzzer sound sound controlling method of the present invention, step S200 also comprises the steps:
S210 ', when noise is greater than XdB and is less than YdB, calculating buzzer sound size is h decibel (dB), wherein, and the size+n of h=noise, n is preset parameter value, and the value of n can be arranged as the case may be, and Y is greater than X; Preferably, as a kind of embodiment, the value of n can be set to 5,10 or 15;
S220 ', according to the buzzer sound of h decibel (dB) size, the duty ratio arranging pulse width modulating signal is the second duty ratio;
S230 ', according to the second duty ratio, output pulse width modulation signal, controls buzzer and sends the sound that size is h decibel (dB).
As a kind of embodiment, Y is greater than X, and therefore, when the value of X is 20, the value of Y can be 80; Namely when the size of noise surrounding environment being detected is: 20dB < S
induring < 80dB, S
out=(S
in+ n) dB, calculating buzzer sound size h decibel (dB) is (S
in+ n) dB;
According to the corresponding relation database of the duty ratio of buzzer sound size and pulse width modulating signal, obtain and (S
in+ n) the second duty ratio of the corresponding pulse width modulating signal of dB;
The duty ratio arranging pulse width modulating signal is the second duty ratio, exports the pulse width modulating signal of the second duty ratio to buzzer, and the decibel that control buzzer is sounded is (S
in+ n) dB and h decibel (dB);
In the embodiment of the present invention, according to the size of the noise of the surrounding environment detected, the size of regulating and controlling buzzer sound, the difference of the size of the sound that buzzer is sent and the size of noise be 5dB, 10dB or 15dB can realize ensureing buzzer sound can alert successful operation whether while, avoid the phenomenon of the people bothering surrounding.
Preferably, in execution, step S220 ' is front also comprises the steps:
S211 ', whether the size and the n sum h that detect noise are greater than Y1;
S212 ', when h is greater than Y1, control h equals Y1;
S213 ', when h is less than or equal to Y1, control h remains unchanged;
Wherein, Y1 is greater than Y.
It should be noted that, Y1 is the second set point; According to S
out=(S
in+ n) dB, calculating buzzer sound size h decibel (dB) is (S
in+ n) after dB, due to people to the actual tolerance range of sound size at [25dB, 85dB], thus, preferably, the value of Y1 can be set to 85, as (S
in+ n) dB > 85dB time, beyond the actual tolerance range of people to sound, bring uncomfortable sensation to people, therefore, by detecting the buzzer sound size h dB i.e. (S now calculated
in+ n) dB, if h is greater than 85(i.e. (S
in+ n) dB > 85dB), then control h equals 85(i.e. (S
in+ n) dB=85dB), and the corresponding relation database of duty ratio according to buzzer sound size and pulse width modulating signal, obtain (S
in+ n) dB=85dB time, the duty ratio of corresponding pulse width modulating signal, regulates the sound size of buzzer, effectively avoids (the S when calculate
in+ n) dB > 85dB time, the size of the sound that buzzer sends is more than 85dB, thus the phenomenon of people of having a rest near impact, and ensure that can the whether effect of alert successful operation simultaneously.
As the another specific embodiment of buzzer sound sound controlling method of the present invention, step S200 also comprises the steps:
S210 ' ', when noise is more than or equal to YdB, arranging buzzer sound size is Y1dB;
S220 ' ', according to the buzzer sound of Y1dB size, the duty ratio arranging pulse width modulating signal is the 3rd duty ratio;
S230 ' ', according to the 3rd duty ratio, output pulse width modulation signal, controls buzzer and sends the sound that size is Y1dB.
Preferably, when the value of Y is 80, the value of Y1 can be set to 85, namely when the size of the noise of the surrounding environment detected is: S
induring>=80dB, according to S
induring>=80dB, S
out=85dB, obtaining buzzer sound size is 85dB, and the corresponding relation database of duty ratio according to buzzer sound size and pulse width modulating signal, obtain the duty ratio (i.e. the 3rd duty ratio) of the pulse width modulating signal corresponding with 85dB, therefore, the duty ratio now arranging pulse width modulating signal is the 3rd duty ratio, to the pulse width modulating signal of buzzer input the 3rd duty ratio, the decibel of the sound that regulating and controlling buzzer sends is 85dB, even if ensure that in a noisy environment, operating personnel still can hear the sound that buzzer sends, obtain successful operation whether prompting.
Accordingly, based on same inventive concept, present invention also offers a kind of buzzer sound control apparatus, due to the operation principle of buzzer sound control apparatus and buzzer sound sound controlling method principle similar, therefore, repeat part and repeat no more.
See Fig. 3, a kind of buzzer sound control apparatus 300, comprise noise measuring module 310, micro-control module 320 and buzzer 330, the output of noise measuring module 310 is connected with the input of micro-control module 320, the output of micro-control module 320 is connected with the input of buzzer 330, wherein:
Noise measuring module 310, for detecting the size of the noise of surrounding environment in real time;
Micro-control module 320 comprises the first processing unit 321 and pwm unit 322, wherein:
First processing unit 321, for the size according to noise, arranges the duty ratio of the pulse width modulating signal for controlling buzzer sound size;
Pwm unit 322, for according to duty ratio, output pulse width modulation signal, controls the sound that buzzer 330 sends corresponding size.
See Fig. 4, as buzzer sound control apparatus 300 1 specific embodiment of the present invention, the first processing unit 321 comprises first and arranges subelement 3210 and the first process subelement 3211, and pwm unit 322 comprises the first modulation subunit 3220, wherein:
First arranges subelement 3210, and for when noise is less than or equal to XdB, arranging buzzer sound size is X1dB, and wherein, X1 is greater than X;
First process subelement 3211, for the buzzer sound according to X1dB size, the duty ratio arranging pulse width modulating signal is the first duty ratio;
First modulation subunit 3220, for according to the first duty ratio, output pulse width modulation signal, controls buzzer 330 and sends the sound that size is X1dB.
Preferably, the first processing unit 321 also comprises the second computation subunit 3212 and the second process subelement 3213, and pwm unit 322 also comprises the second modulation subunit 3221, wherein:
Second computation subunit 3212, during for being greater than XdB when noise and being less than YdB, calculating buzzer sound size is hdB, wherein, and the size+n of h=noise, n is preset parameter value, and Y is greater than X;
Second process subelement 3213, for the buzzer sound according to hdB size, the duty ratio arranging pulse width modulating signal is the second duty ratio;
Second modulation subunit 3221, for according to the second duty ratio, output pulse width modulation signal, controls buzzer 330 and sends the sound that size is hdB.
Preferably, the first processing unit 321 also comprises the first detection sub-unit 3214, first and controls subelement 3215 and the second control subelement 3216, wherein:
Whether the first detection sub-unit 3214, be greater than Y1 for the size and n sum h detecting noise;
First controls subelement 3215, and for when h is greater than Y1, control h equals Y1;
Second controls subelement 3216, and for when h is less than or equal to Y1, control h remains unchanged;
Wherein, Y1 is greater than Y.
As a kind of embodiment of buzzer sound control apparatus 300 of the present invention, the first processing unit 321 also comprises the 3rd and arranges subelement 3217 and the 3rd process subelement 3218, and pwm unit 322 also comprises the 3rd modulation subunit 3222, wherein:
3rd arranges subelement 3217, and for when noise is more than or equal to YdB, arranging buzzer sound size is Y1dB;
3rd process subelement 3218, for the buzzer sound according to Y1dB size, the duty ratio arranging pulse width modulating signal is the 3rd duty ratio;
3rd modulation subunit 3222, for according to the 3rd duty ratio, output pulse width modulation signal, controls buzzer 330 and sends the sound that size is Y1dB.
More excellent, in buzzer sound control apparatus 300 1 specific embodiment provided by the invention, micro-control module 320 also comprises the first detecting unit 323, first setting unit 324, second setting unit 325 and the first modulating unit 326, wherein:
First detecting unit 323, for detecting the running status of the controller being provided with buzzer 330;
First setting unit 324, for when the running status of controller is the state of not opening buzzer sound automatic control function, is set to preset value by buzzer sound size;
Second setting unit 325, for the buzzer sound according to preset value, the duty ratio arranging pulse width modulating signal is the 4th duty ratio;
First modulating unit 326, for according to the 4th duty ratio, output pulse width modulation signal, controls buzzer 330 and sends the sound that size is preset value.
Accordingly, present invention also offers a kind of controller, this controller, except comprising in existing controller except other peripheral hardwares, also comprises any one buzzer sound control apparatus as above.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (13)
1. a buzzer sound sound controlling method, is characterized in that, comprises the steps:
S100, detects the size of the noise of surrounding environment in real time;
S200, according to the size of described noise, arranges the duty ratio of the pulse width modulating signal for controlling buzzer sound size; And according to described duty ratio, export described pulse width modulating signal, control the sound that described buzzer sends corresponding size.
2. buzzer sound sound controlling method according to claim 1, is characterized in that, described step S200 comprises the steps:
S210, when described noise is less than or equal to XdB, arranging described buzzer sound size is X1dB, and wherein, described X1 is greater than described X;
S220, according to the buzzer sound of described X1dB size, the duty ratio arranging described pulse width modulating signal is the first duty ratio;
S230, according to described first duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described X1dB.
3. buzzer sound sound controlling method according to claim 2, is characterized in that, described step S200 also comprises the steps:
S210 ', when described noise is greater than described XdB and is less than YdB, calculating described buzzer sound size is hdB, and wherein, the size+n of noise described in described h=, n are preset parameter value, and described Y is greater than described X;
S220 ', according to the buzzer sound of described hdB size, the duty ratio arranging described pulse width modulating signal is the second duty ratio;
S230 ', according to described second duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described hdB.
4. buzzer sound sound controlling method according to claim 3, is characterized in that, performs that described step S220 ' is front also to be comprised the steps:
S211 ', whether the size and the n sum h that detect described noise are greater than Y1;
S212 ', when described h is greater than described Y1, controls described h and equals described Y1;
S213 ', when described h is less than or equal to described Y1, controls described h and remains unchanged;
Wherein, described Y1 is greater than described Y.
5. buzzer sound sound controlling method according to claim 4, is characterized in that, described step S200 also comprises the steps:
S210 ' ', when described noise is more than or equal to described YdB, arranging described buzzer sound size is described Y1dB;
S220 ' ', according to the buzzer sound of described Y1dB size, the duty ratio arranging described pulse width modulating signal is the 3rd duty ratio;
S230 ' ', according to described 3rd duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described Y1dB.
6. the buzzer sound sound controlling method according to any one of claim 1 to 5, is characterized in that, also comprises the steps: before performing described step S100
S010, detects the running status being provided with the controller of buzzer, when the running status of described controller is the state of opening buzzer sound automatic control function, performs described step S100; When the running status of described controller is the state of not opening described buzzer sound automatic control function, perform step S100 ';
S100 ', is set to preset value by described buzzer sound size;
S200 ', according to the buzzer sound of described preset value, the duty ratio arranging described pulse width modulating signal is the 4th duty ratio; And according to described 4th duty ratio, export described pulse width modulating signal, control described buzzer and send the sound that size is described preset value.
7. a buzzer sound control apparatus, it is characterized in that, comprise noise measuring module, micro-control module and buzzer, the output of described noise measuring module is connected with the input of described micro-control module, the output of described micro-control module is connected with the input of described buzzer, wherein:
Described noise measuring module, for detecting the size of the noise of surrounding environment in real time;
Described micro-control module comprises the first processing unit and pwm unit, wherein:
Described first processing unit, for the size according to described noise, arranges the duty ratio of the pulse width modulating signal for controlling buzzer sound size;
Described pwm unit, for according to described duty ratio, exports described pulse width modulating signal, controls the sound that described buzzer sends corresponding size.
8. buzzer sound control apparatus according to claim 7, is characterized in that, described first processing unit comprises first and arranges subelement and the first process subelement, and described pwm unit comprises the first modulation subunit, wherein:
Described first arranges subelement, and for when described noise is less than or equal to XdB, arranging described buzzer sound size is X1dB, and wherein, described X1 is greater than described X;
Described first process subelement, for the buzzer sound according to described X1dB size, the duty ratio arranging described pulse width modulating signal is the first duty ratio;
Described first modulation subunit, for according to described first duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described X1dB.
9. buzzer sound control apparatus according to claim 8, is characterized in that, described first processing unit also comprises the second computation subunit and the second process subelement, and described pwm unit also comprises the second modulation subunit, wherein:
Described second computation subunit, for when described noise is greater than described XdB and is less than YdB, calculating described buzzer sound size is hdB, and wherein, the size+n of noise described in described h=, n are preset parameter value, and described Y is greater than described X;
Described second process subelement, for the buzzer sound according to described hdB size, the duty ratio arranging described pulse width modulating signal is the second duty ratio;
Described second modulation subunit, for according to described second duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described hdB.
10. buzzer sound control apparatus according to claim 9, is characterized in that, described first processing unit also comprises the first detection sub-unit, first and controls subelement and the second control subelement, wherein:
Whether described first detection sub-unit, be greater than Y1 for the size and n sum h detecting described noise;
Described first controls subelement, for when described h is greater than described Y1, controls described h and equals described Y1;
Described second controls subelement, for when described h is less than or equal to described Y1, controls described h and remains unchanged;
Wherein, described Y1 is greater than described Y.
11. buzzer sound control apparatus according to claim 10, is characterized in that, described first processing unit also comprises the 3rd and arranges subelement and the 3rd process subelement, and described pwm unit also comprises the 3rd modulation subunit, wherein:
Described 3rd arranges subelement, and for when described noise is more than or equal to described YdB, arranging described buzzer sound size is described Y1dB;
Described 3rd process subelement, for the buzzer sound according to described Y1dB size, the duty ratio arranging described pulse width modulating signal is the 3rd duty ratio;
Described 3rd modulation subunit, for according to described 3rd duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described Y1dB.
12. buzzer sound control apparatus according to any one of claim 7 to 11, it is characterized in that, described micro-control module also comprises the first detecting unit, the first setting unit, the second setting unit and the first modulating unit, wherein:
Described first detecting unit, for detecting the running status of the controller being provided with buzzer;
Described first setting unit, during for being the state of not opening described buzzer sound automatic control function when the running status of described controller, is set to preset value by described buzzer sound size;
Described second setting unit, for the buzzer sound according to described preset value, the duty ratio arranging described pulse width modulating signal is the 4th duty ratio;
Described first modulating unit, for according to described 4th duty ratio, exports described pulse width modulating signal, controls described buzzer and sends the sound that size is described preset value.
13. 1 kinds of controllers, is characterized in that, comprise the buzzer sound control apparatus described in any one of claim 7 to 12.
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| CN201410038890.5A CN104811859A (en) | 2014-01-26 | 2014-01-26 | Buzzer sound control method, device and controller |
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