CN102538047A - Intelligent smoke exhaust ventilator and control method thereof - Google Patents
Intelligent smoke exhaust ventilator and control method thereof Download PDFInfo
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- CN102538047A CN102538047A CN2012100509370A CN201210050937A CN102538047A CN 102538047 A CN102538047 A CN 102538047A CN 2012100509370 A CN2012100509370 A CN 2012100509370A CN 201210050937 A CN201210050937 A CN 201210050937A CN 102538047 A CN102538047 A CN 102538047A
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Abstract
An intelligent smoke exhaust ventilator includes a blower, a master controller, as well as a power supply circuit, a temperature detection circuit and a blower drive circuit all electrically connected with the master controller, and is characterized by further including a humidity detection circuit electrically connected with the master controller; one end of the humidity detection circuit is electrically connected with a PWM (pulse-width modulation) control pin of the master controller; and the other end of the humidity detection circuit is electrically connected with a humidity detection pin of the master controller. The control method of the smoke exhaust ventilator includes the steps such as initialization and humiture detection, can effectively avoid resource waste brought by blind activation, and can realize the real-time speed adjusting of the blower at the same time, the adjusting precision is high, the structure is simple, and the cost is lower.
Description
Technical field
The present invention relates to a kind of smoke exhaust ventilator and control method thereof, especially a kind of intelligent fume exhauster and control method thereof.
Background technology
In the prior art; Automatic cooking fume exhauster generally detects oil smoke smog size through modes such as temperature sensing element, dew cells separately; When detected temperature value or humidity value surpass preset value, judging has oil smoke, thereby starts smoke exhaust ventilator automatically, but airborne temperature value or humidity value itself are higher under a lot of situation; And can't help that oil smoke causes, if start the waste that smoke exhaust ventilator must bring resource this moment.In addition; In the existing smoke exhaust ventilator power of dc fan all be that producer configures in advance, fix, the rotating speed of blower fan can not be according to current oil smoke amount real time altering, degree of regulation is poor; If speed change will be provided with a lot of gears, complex structure, cost are higher.In order to overcome these defectives, intelligent fume exhauster and control method thereof are developed.
Summary of the invention
Technical problem to be solved by this invention is that a kind of intelligent fume exhauster and control method thereof will be provided, and can effectively avoid blindly starting the wasting of resources that brings, and can realize the real-time speed regulating of blower fan simultaneously, and degree of regulation is high, simple in structure, cost is lower.
The technical scheme that the present invention solves its technical problem employing is: a kind of intelligent fume exhauster; The power circuit, temperature sensing circuit, the blower fan drive circuit that comprise blower fan, master controller, electrically connect with master controller; It also comprises the humidity measuring circuit that electrically connects with master controller; The PWM control pin of humidity measuring circuit one end and master controller electrically connects, and the Humidity Detection pin of the other end and master controller electrically connects.
Described humidity measuring circuit comprises moisture probe, R18, R19, the C10 that humistor R13, terminals JP4 and socket JP6 form; The bipod of the two ends of humistor R13 and terminals JP4 electrically connects; Terminals JP4 and socket JP6 electrically connect through binding post; The pin of socket JP6 and the PWM control pin of master controller electrically connect, and another pin electrically connects with R18, R19 respectively, the other end ground connection of R18; The other end of R19 electrically connects the other end ground connection of C10 with the Humidity Detection pin of C10 and master controller respectively.
The PWM control pin output square-wave pulse of said main controller.
A kind of control method of intelligent fume exhauster comprises the steps:
A, initialization design are that blower fan is not worked, automatic mode does not start, and set fiducial temperature, reference humidity, temperature threshold values, humidity threshold values, actuation temperature, get into b then;
B, humidity measuring circuit are gathered current humidity value, temperature sensing circuit and are gathered current temperature value, and master controller is stored current humiture value and judged whether automatic mode starts, and then gets into c in this way, as otherwise get into d;
C, master controller rotate blower fan according to detected temperature value, pwm pulse of humidity value output, get into g then;
D, judge current humidity and humidity threshold values difference whether greater than reference humidity, then get into e in this way, as otherwise get into f;
E, judge Current Temperatures and temperature threshold values difference whether greater than fiducial temperature, then start automatic mode in this way, get into b then, as otherwise get into f;
F, continue calibration reference humidity and also detect Current Temperatures, judge whether to detect Current Temperatures greater than setting actuation temperature, the master controller 1 output PWM high level that equals 100% then drives blower fan in this way, gets into g then, as otherwise get into b;
G, detect current humidity and whether be lower than reference humidity, then get into h in this way, as otherwise get into b;
H, detect Current Temperatures and whether be lower than fiducial temperature, then delay time a period of time in this way, close blower fan then and close automatic mode, get into b again, as otherwise directly get into b.
Described step c also comprises the steps:
The difference of difference, current temperature value and the reference temperature value of c1, calculating Current Temperatures humidity value and reference humidity value;
C2, master controller are exported a pwm pulse by a certain percentage according to said temperature difference and humidity difference;
C3, driving blower fan rotate.
Described temperature threshold values is that 8 ℃, humidity threshold values are 8%.
Described setting actuation temperature is 42 ℃.
The present invention compares the beneficial effect that is produced with background technology:
The temperature sensing circuit that employing and master controller electrically connect and the scheme of humidity measuring circuit; When humidity measuring circuit detects humidity when big; Judge according to the detected temperature signal of temperature sensing circuit whether oil smoke is arranged again, send different pwm pulses if any master controller blower fan is rotated with different rotating speeds, can effectively avoid blindly starting the wasting of resources that brings; Can realize simultaneously the real-time speed regulating of blower fan, degree of regulation is high, simple in structure, cost is lower.
Description of drawings: Fig. 1 is a control flow chart of the present invention.
Fig. 2 is a circuit structure diagram of the present invention.
Fig. 3 is a control block diagram of the present invention.
The specific embodiment: shown in accompanying drawing 1, accompanying drawing 3; Power circuit 2, temperature sensing circuit 3, lighting circuit 5, cleaning circuit 6, blower fan drive circuit 7, button and display circuit 8 that the intelligent fume exhauster of present embodiment comprises blower fan 9, master controller 1, electrically connects with master controller 1; Also comprise the humidity measuring circuit 4 that electrically connects with master controller 1; Humidity measuring circuit 4 comprises moisture probe, R18, R19, the C10 that humistor R13, terminals JP4 and socket JP6 form, and the bipod of the two ends of humistor R13 and terminals JP4 electrically connects, and terminals JP4 and socket JP6 electrically connect through binding post; The pin of socket JP6 and the PWM control pin of master controller 1 electrically connect; Another pin electrically connects with R18, R19 respectively, the other end ground connection of R18, and the other end of R19 electrically connects with the Humidity Detection pin of C10 and master controller 1 respectively; The other end ground connection of C10, the PWM pin of master controller 1 are exported the different square-wave pulse of high and low level dutycycle.The two ends of humidity measuring circuit 4 all are directly connected to master controller 1, and are simple in structure, cost is lower.Moisture probe and temp probe can be installed on the housing of smoke exhaust ventilator or be installed in enclosure interior or other positions of being convenient to detect.Power circuit 2 provides power supply to master controller 1; Master controller 1 is according to temperature sensing circuit 3, humidity measuring circuit 4 detected temperature, humidity value and internal analysis program command motor-drive circuit 7 starter motors 9, and the user can make master controller 1 control lighting circuit 5 provide illumination, cleaning circuit 6 to clean through button and display circuit 8.
Referring to accompanying drawing 2, the control method of above-mentioned intelligent fume exhauster may further comprise the steps:
A, initialization design are that blower fan 9 is not worked, automatic mode does not start, and set fiducial temperature, reference humidity, temperature threshold values, humidity threshold values, actuation temperature, get into b then;
B, humidity measuring circuit 4 gathers current humidity value, temperature sensing circuit 3 is gathered current temperature value, and the master controller 1 current humiture value of storage also judges whether automatic mode starts, and then gets into c in this way, as otherwise get into d;
C, master controller 1 rotate blower fan according to detected temperature value, pwm pulse of humidity value output, get into g then;
D, judge current humidity and humidity threshold values difference whether greater than reference humidity, then get into e in this way, as otherwise get into f;
E, judge Current Temperatures and temperature threshold values difference whether greater than fiducial temperature, then start automatic mode in this way, get into b then, as otherwise get into f;
F, continue calibration reference humidity and also detect Current Temperatures, judge whether to detect Current Temperatures greater than setting actuation temperature, the master controller 1 output PWM high level that equals 100% then drives blower fan 9 in this way, gets into g then, as otherwise get into b;
G, detect current humidity and whether be lower than reference humidity, then get into h in this way, as otherwise get into b;
H, detect Current Temperatures and whether be lower than fiducial temperature, then delay time a period of time in this way, close blower fan 9 then and close automatic mode, get into b again, as otherwise directly get into b.
Described step c also comprises the steps:
The difference of difference, current temperature value and the reference temperature value of c1, calculating Current Temperatures humidity value and reference humidity value;
C2, master controller 1 are exported a pwm pulse by a certain percentage according to said temperature difference and humidity difference;
C3, driving blower fan 9 rotate.
Owing to airborne temperature, humidity owing to reasons such as season, weather are constantly to change, so the value of fiducial temperature, reference humidity also is changing and needs constantly calibration.The temperature threshold values of setting can be between 4 ℃～20 ℃, and the humidity threshold values can be between 4%～20%, and actuation temperature can be between 39 ℃～45 ℃.
Because the susceptibility of humidity sensor is higher than temperature sensor; The present invention is after detecting moisture signal, and basis detects to such an extent that temperature signal judges whether oil smoke is arranged again, and can make master controller 1 output different pulse according to the difference of temperature, humidity in the oil smoke; Driving blower fan turns round with different speed; Can effectively avoid relying on merely humidity or temperature detection to start the wasting of resources that blower fan brings, further, blower fan is according to oil smoke size real-time speed regulating; Can not in time get rid of the generation of phenomenons such as oil smoke, oil smoke hour waste electric power when avoiding oil smoke big, and degree of regulation is high, simple in structure, cost is lower.
Claims (7)
1. intelligent fume exhauster; The power circuit (2), temperature sensing circuit (3), the blower fan drive circuit (7) that comprise blower fan (9), master controller (1), electrically connect with master controller (1); It is characterized in that it also comprises the humidity measuring circuit (4) that electrically connects with master controller (1); The PWM control pin of humidity measuring circuit (4) one ends and master controller (1) electrically connects, and the Humidity Detection pin of the other end and master controller (1) electrically connects.
2. intelligent fume exhauster according to claim 1; It is characterized in that humidity measuring circuit (4) comprises moisture probe, R18, R19, C10 that humistor R13, terminals JP4 and socket JP6 form; The bipod of the two ends of humistor R13 and terminals JP4 electrically connects, and terminals JP4 and socket JP6 electrically connect through binding post, and the PWM control pin of the pin of socket JP6 and master controller (1) electrically connects; Another pin electrically connects with R18, R19 respectively; The other end ground connection of R18, the other end of R19 electrically connect the other end ground connection of C10 with the Humidity Detection pin of C10 and master controller (1) respectively.
3. intelligent fume exhauster according to claim 1 and 2 is characterized in that the PWM control pin of said main controller (1) is exported square-wave pulse.
4. the control method of an intelligent fume exhauster is characterized in that comprising the steps:
A, initialization design are that blower fan (9) is not worked, automatic mode does not start, and set fiducial temperature, reference humidity, temperature threshold values, humidity threshold values, actuation temperature, get into b then;
B, humidity measuring circuit (4) are gathered current humidity value, temperature sensing circuit (3) and are gathered current temperature value, and the current humiture value of master controller (1) storage also judges whether automatic mode starts, and then gets into c in this way, as otherwise get into d;
C, master controller (1) rotate blower fan according to detected temperature value, pwm pulse of humidity value output, get into g then;
D, judge current humidity and humidity threshold values difference whether greater than reference humidity, then get into e in this way, as otherwise get into f;
E, judge Current Temperatures and temperature threshold values difference whether greater than fiducial temperature, then start automatic mode in this way, get into b then, as otherwise get into f;
F, continue calibration reference humidity and also detect Current Temperatures, judge whether to detect Current Temperatures greater than setting actuation temperature, the master controller 1 output PWM high level that equals 100% then drives blower fan (9) in this way, gets into g then, as otherwise get into b;
G, detect current humidity and whether be lower than reference humidity, then get into h in this way, as otherwise get into b;
H, detect Current Temperatures and whether be lower than fiducial temperature, then delay time a period of time in this way, close blower fan (9) then and close automatic mode, get into b again, as otherwise directly get into b.
5. the control method of intelligent fume exhauster according to claim 4 is characterized in that step c also comprises the steps:
The difference of difference, current temperature value and the reference temperature value of c1, calculating Current Temperatures humidity value and reference humidity value;
C2, master controller (1) are exported a pwm pulse by a certain percentage according to said temperature difference and humidity difference;
C3, driving blower fan (9) rotate.
6. the control method of intelligent fume exhauster according to claim 4 is characterized in that described temperature threshold values is that 8 ℃, humidity threshold values are 8%.
7. the control method of intelligent fume exhauster according to claim 4 is characterized in that described setting actuation temperature is 42 ℃.
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| CN201210050937.0A CN102538047B (en) | 2012-03-01 | 2012-03-01 | Intelligent smoke exhaust ventilator and control method thereof |
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| CN201210050937.0A CN102538047B (en) | 2012-03-01 | 2012-03-01 | Intelligent smoke exhaust ventilator and control method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103644583A (en) * | 2013-09-12 | 2014-03-19 | 中山华帝燃具股份有限公司 | Control device capable of monitoring running state of range hood in real time and control method thereof |
| CN104214808A (en) * | 2014-08-22 | 2014-12-17 | 珠海格力电器股份有限公司 | Range hood and control method thereof |
| CN106091056A (en) * | 2016-06-28 | 2016-11-09 | 深圳市朗特电子有限公司 | A kind of kitchen fume concentration autocontrol method, system and lampblack absorber |
| CN107327413A (en) * | 2016-04-30 | 2017-11-07 | 华帝股份有限公司 | High-reliability oil smoke detection method |
| CN107842890A (en) * | 2017-11-13 | 2018-03-27 | 国网山东省电力公司荣成市供电公司 | A kind of intelligent fume exhauster |
| CN109915867A (en) * | 2017-12-13 | 2019-06-21 | 宁波方太厨具有限公司 | A kind of data processing method of oil smoke sensor |
| CN109916855A (en) * | 2017-12-13 | 2019-06-21 | 宁波方太厨具有限公司 | The data processing method of oil smoke sensor |
| CN110307569A (en) * | 2018-03-27 | 2019-10-08 | 博西华电器（江苏）有限公司 | The control method and control device of kitchen ventilator, kitchen ventilator |
| CN111580572A (en) * | 2020-05-31 | 2020-08-25 | 杭州晶一智能科技有限公司 | Automatic intelligent control method for range hood based on second derivative analysis of humidity |
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| CN103644583B (en) * | 2013-09-12 | 2016-02-24 | 华帝股份有限公司 | Control device capable of monitoring running state of range hood in real time and control method thereof |
| CN104214808A (en) * | 2014-08-22 | 2014-12-17 | 珠海格力电器股份有限公司 | Range hood and control method thereof |
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| CN106091056B (en) * | 2016-06-28 | 2018-07-31 | 深圳朗特智能控制股份有限公司 | A kind of kitchen fume concentration autocontrol method, system and kitchen ventilator |
| CN106091056A (en) * | 2016-06-28 | 2016-11-09 | 深圳市朗特电子有限公司 | A kind of kitchen fume concentration autocontrol method, system and lampblack absorber |
| CN107842890A (en) * | 2017-11-13 | 2018-03-27 | 国网山东省电力公司荣成市供电公司 | A kind of intelligent fume exhauster |
| CN109915867A (en) * | 2017-12-13 | 2019-06-21 | 宁波方太厨具有限公司 | A kind of data processing method of oil smoke sensor |
| CN109916855A (en) * | 2017-12-13 | 2019-06-21 | 宁波方太厨具有限公司 | The data processing method of oil smoke sensor |
| CN109915867B (en) * | 2017-12-13 | 2020-06-26 | 宁波方太厨具有限公司 | Data processing method of oil smoke sensor |
| CN109916855B (en) * | 2017-12-13 | 2021-08-20 | 宁波方太厨具有限公司 | Data processing method of oil smoke sensor |
| CN110307569A (en) * | 2018-03-27 | 2019-10-08 | 博西华电器（江苏）有限公司 | The control method and control device of kitchen ventilator, kitchen ventilator |
| CN110307569B (en) * | 2018-03-27 | 2022-08-12 | 博西华电器（江苏）有限公司 | Control method and control device of range hood and range hood |
| CN111580572A (en) * | 2020-05-31 | 2020-08-25 | 杭州晶一智能科技有限公司 | Automatic intelligent control method for range hood based on second derivative analysis of humidity |
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| CN102538047B (en) | 2014-05-21 |
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Effective date of registration: 20170421 Address after: 528325 Guangdong Province, Foshan city Shunde District Xingtan town De Fu Road No. 71 Patentee after: Guangdong Vanward heat energy technology Co., Ltd. Address before: 528305 Foshan, Shunde District, Ronggui street, Hongqi Road, No. 80 Patentee before: Foshan Shunde Wanhe Electrical Fittings Co., Ltd. |
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