CN104819498A - Range hood control method capable of detecting air quality - Google Patents
Range hood control method capable of detecting air quality Download PDFInfo
- Publication number
- CN104819498A CN104819498A CN201510193326.5A CN201510193326A CN104819498A CN 104819498 A CN104819498 A CN 104819498A CN 201510193326 A CN201510193326 A CN 201510193326A CN 104819498 A CN104819498 A CN 104819498A
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- China
- Prior art keywords
- air quality
- range hood
- blower fan
- control method
- fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
Abstract
A range hood control method capable of detecting air quality is characterized by including the steps: (1) starting a sensor; (2) judging whether the current air quality is as same as air quality detected in last time or not, keeping the previous state and cycling the step if the current air quality is as same as the air quality detected in last time, and executing a next step if not; (3) judging whether the current air quality is excellent or not, keeping off and returning to the step (2) if the current air quality is excellent, and executing a next step if not; (4) judging whether a fan runs for X minutes or not, returning to a previous step if not, and executing a next step; (5) storing the current state, resetting gear shifting and initializing time delay for Y seconds; (6) judging whether the current air quality is excellent or not, stopping initialized timing and returning to the step (2) if the current air quality is excellent, and switching gears according to pollution indexes if not. The range hood control method has the advantages that interference resistance is enhanced, detection accuracy is high, frequent starting of a range hood fan is decreased, and the service life of a range hood is prolonged.
Description
Technical field
The present invention relates to a kind of range hood for kitchen use, particularly relate to a kind of control method detecting the range hood of air quality.
Background technology
At present, culinary lampblack absorber great majority realize the dynamic operation of lampblack-pumped opening and closing by Artificial Control, and usually can forget because being busy with culinary art on the one hand and open smoke exhaust ventilator, greasy smell is large by the time just opens; On the other hand at the end of culinary art, smoke extractor always can be closed by most people simultaneously, but now still may be filled with greasy smell in kitchen, cannot reach the object thoroughly removing oil smoke.
In view of above-mentioned Problems existing, the application for a patent for invention " smoke detection system, lampblack absorber intelligence control system and lampblack absorber intelligent control method " being 201110033740.1 if any application number in prior art discloses a kind of like this smoke detection system and adopts an intelligent control system of kitchen ventilator of this smoke detection system, by analyzing the image in the kitchen of shooting, Smoke Detection is carried out to image, and judge the rank of smog, the smoking power of smoke exhaust ventilator is set according to the degree of smog, reaches the object of Based Intelligent Control smoke exhaust ventilator.
But, above-mentioned patent is the adjustment realizing lampblack absorber rotating speed by detecting indoor smog change, and smoke detection apparatus needs to use image collecting device, not only cost is high, and the change of indoor smog often the change of actual mist extractor is delayed, the real-time weak effect detected, cannot accomplish the timely open and close controlling to lampblack absorber, also need to be improved further.
Summary of the invention
Technical problem to be solved by this invention provides a kind of detection more sensitive and the range hood control method of the detected air quality that the degree of accuracy is high for above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of range hood control method detecting air quality, described range hood includes blower fan, air mass sensor and main control chip, it is characterized in that, described control method includes following steps:
(1), air mass sensor is started, preheating 1 ~ 2 second after starting;
(2), main control chip judges that whether current air quality identical with last testing result, if testing result is identical, then blower fan keep before state, then circulate this step; If testing result is not identical, then perform next step;
(3), main control chip judges whether current air quality is excellent, if air quality is excellent, then blower fan keeps closed condition, then gets back to step (2); If air quality does not reach excellent, fan starting also then performs next step;
(4), main control chip judges whether described blower fan has run 1 ~ 5 minute, if do not reach 1 ~ 5 minute running time, then gets back to previous step; If running time has reached 1 ~ 5 minute, then perform next step; Be preferably 3 minutes
(5), main control chip preserves blower fan current operating conditions, and blower fan resets gear shift and initializes timing and start, and time delay 3 ~ 5 seconds;
(6), main control chip judges whether current air quality is excellent again, if air quality is excellent, then blower fan supplements gear shift with money and initializes timing and cut out, and comes back to step (2); If air quality does not reach excellent, then according to air pollution quality index, the rotating speed of described blower fan switches to corresponding gear.
In order to avoid wrong data input main control chip, as preferably, preheating 1 ~ 2 second after the air mass sensor in described step (1) starts.Sensor upon actuation preheating can play the effect of stable data for several seconds, makes the data of detection more accurate.
In order to prevent air quality frequent variations, cause motor frequently to switch between opening and closing, as preferred further, the time of the numerical value X in described step (4) is 1 ~ 5 minute.Extending the fan operation time can reduce because disturbing the data fluctuations that causes, reduces the frequency that motor is frequently opened, and extends motor service life.
In order to ensure that main control chip receives the Stability and veracity of sensor output signal, as again one preferably, the time of the numerical value Y in described step (5) is 3 ~ 5 seconds.After fan operation a period of time, preserve this state and time delay, antijamming capability can be improved further, avoid the signal fluctuation that external interference in the short time causes.
As preferably, the air pollution quality index in described step (6) can correspond to slight pollution, intermediate pollution and severe contamination three kinds of gears simply, and described air quality is slight pollution, and corresponding rotation speed of fan is with 10m
3/ min low cruise; Described air quality is intermediate pollution, and corresponding rotation speed of fan is with 13m
3/ min middling speed is run; Described air pollution quality index is severe contamination, and corresponding rotation speed of fan is with 15m
3/ min high-speed cruising.
Compared with prior art, the invention has the advantages that: increase and repeatedly compare detection and delays time to control, the functional reliability of equipment is improved, antijamming capability strengthens, accuracy in detection is higher, not only avoids fluctuating the interfering signal caused because of the external world, effectively prevents maloperation, and reduce the frequent starting of range hood fan, thus the life-span of lampblack absorber can be extended.
Accompanying drawing explanation
Fig. 1 is the control method flow chart of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figure 1, present embodiment discloses a kind of range hood control method detecting air quality, this range hood includes blower fan, air mass sensor and main control chip, wherein, main control chip can by various integrated circuit of the prior art or chip microcontroller, as the Samsung MCU chip that model is S3F8S45, air mass sensor also can select various model of the prior art, as the present embodiment selects model to be the air mass sensor of AQM-300.
The range hood control method that the present embodiment can detect air quality includes following steps:
(1), first, needing first to start air mass sensor, in order to avoid wrong data input pickup, 1 ~ 2 second is good by sensor preheating upon actuation, sensor upon actuation preheating can play the effect of stable data for several seconds, makes the data of detection more accurate.
(2), then, main control chip judges that whether current air quality is identical with last testing result, if testing result is identical with last time, then the state (namely blower fan keeps closed condition or starting state) before blower fan maintenance, then circulate this step; If twice testing result is not identical, then perform next step.
(3), now, main control chip judges whether current air quality is excellent, and whether air quality is excellent, if air quality is excellent, then blower fan keeps closed condition (if blower fan is open mode before, then now blower fan cuts out automatically), then gets back to step (2); If air quality does not reach excellent, fan starting also then performs next step.
(4), in order to prevent air quality frequent variations, and cause motor frequently to switch between closedown and unlatching, under blower fan starting state, main control chip needs to judge whether blower fan has run 1 ~ 5 minute, if pollution sources disappear, then blower fan running is closed after 1 ~ 5 minute automatically, if pollution sources sustainable existence, blower fan can be exhausted all the time; If do not reach 1 ~ 5 minute running time, then get back to previous step; If running time has reached 1 ~ 5 minute, then perform next step;
The present embodiment preferred fan operation time can be 3 minutes, after time delay runs for 3 minutes, main control chip can read current pollution value, for the unstability preventing state from switching instantaneous data, the prolongation fan operation time can reduce because disturbing the data fluctuations caused, reduce the motor frequency of frequently opening, the ability that system resists external interference can be increased, thus extend motor service life.
(5), in order to ensure that main control chip receives the Stability and veracity of sensor output signal, main control chip preserves blower fan current operating conditions, and blower fan resets gear shift and initializes timing and start, and time delay 3 ~ 5 seconds; After fan operation a period of time, preserve this state and time delay, antijamming capability can be improved further, avoid the signal fluctuation that external interference in the short time causes.
(6), then, main control chip judges whether current air quality is excellent again, if air quality is excellent, then blower fan supplements gear shift with money and initializes timing cut out, comes back to step (2); If air quality does not reach excellent, then according to air pollution quality index, the rotating speed of blower fan switches to corresponding gear.
Air pollution quality index in the present embodiment can correspond to slight pollution, intermediate pollution and severe contamination three kinds of gears simply, and when dusty gas is less than 6%, air quality is defined as excellent, and blower fan can start; When dusty gas is between 6 ~ 12%, air quality is slight pollution, and corresponding rotation speed of fan is with 10m
3/ min low cruise; When dusty gas is between 12 ~ 18%, air quality is intermediate pollution, and corresponding rotation speed of fan is with 13m
3/ min middling speed is run; When dusty gas is greater than 18%, air quality is serious pollution, and corresponding rotation speed of fan is with 15m
3/ min high-speed cruising.Air pollution quality index can also be divided into more rank according to actual conditions, the rotation speed of fan of the corresponding different gear of pollution index of different stage.
The control method of the present embodiment adds repeatedly cycle detection and delays time to control link, the antijamming capability of equipment is strengthened, accuracy in detection is higher, can effectively reduce because external interference causes the frequent starting of range hood fan, thus the life-span of lampblack absorber can be extended, improve the functional reliability of equipment.
Claims (5)
1. can detect a range hood control method for air quality, described range hood includes blower fan, air mass sensor and main control chip, it is characterized in that, described control method includes following steps:
(1) air mass sensor, described in startup;
(2), described main control chip judges that whether current air quality identical with last testing result, if testing result is identical, then blower fan keep before state, then circulate this step; If testing result is not identical, then perform next step;
(3), described main control chip judges whether current air quality is excellent, if air quality is excellent, then blower fan keeps closed condition, then gets back to step (2); If air quality does not reach excellent, fan starting also then performs next step;
(4), described main control chip judges whether described blower fan runs X minute, if do not reach X minute running time, then gets back to previous step; If running time reaches X minute, then perform next step;
(5), described main control chip preserves blower fan current operating conditions, and blower fan resets gear shift and initializes timing and start, and time delay Y second;
(6), described main control chip judges whether current air quality is excellent again, if air quality is excellent, then blower fan supplements gear shift with money and initializes timing and cut out, and comes back to step (2); If air quality does not reach excellent, then according to air pollution quality index, the rotating speed of described blower fan switches to corresponding gear.
2. the range hood control method detecting air quality according to claim 1, is characterized in that: preheating 1 ~ 2 second after the air mass sensor in described step (1) starts.
3. the range hood control method detecting air quality according to claim 1, is characterized in that: the time of the numerical value X in described step (4) is 1 ~ 5 minute.
4. the range hood control method detecting air quality according to claim 2, is characterized in that: the time of the numerical value Y in described step (5) is 3 ~ 5 seconds.
5. the range hood control method detecting air quality according to claim 1, it is characterized in that: the air pollution quality exponent pair in described step (6) should be slight pollution, intermediate pollution and severe contamination three kinds of gears, described air quality is slight pollution, and corresponding rotation speed of fan is with 10m
3/ min low cruise; Described air quality is intermediate pollution, and corresponding rotation speed of fan is with 13m
3/ min middling speed is run; Described air pollution quality index is severe contamination, and corresponding rotation speed of fan is with 15m
3/ min high-speed cruising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510193326.5A CN104819498B (en) | 2015-04-22 | 2015-04-22 | The range hood control method of detectable air quality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510193326.5A CN104819498B (en) | 2015-04-22 | 2015-04-22 | The range hood control method of detectable air quality |
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| CN104819498A true CN104819498A (en) | 2015-08-05 |
| CN104819498B CN104819498B (en) | 2017-08-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105444237A (en) * | 2015-12-31 | 2016-03-30 | 欧派家居集团股份有限公司 | Range hood and control method thereof |
| CN106152220A (en) * | 2016-08-22 | 2016-11-23 | 珠海格力电器股份有限公司 | Range hood and control method thereof and device |
| CN106765386A (en) * | 2016-12-15 | 2017-05-31 | 杭州老板电器股份有限公司 | Smoke exhaust ventilator control method |
| CN106931478A (en) * | 2015-12-31 | 2017-07-07 | 九阳股份有限公司 | A kind of lampblack absorber fresh air purifying control method |
| CN108151091A (en) * | 2016-12-05 | 2018-06-12 | 台湾樱花股份有限公司 | The Detection of Air Quality method and smoke exhaust ventilator of smoke exhaust ventilator |
| CN109028238A (en) * | 2018-09-29 | 2018-12-18 | 佛山市云米电器科技有限公司 | A kind of intelligent shift method with vision-based detection module kitchen ventilator |
| TWI665409B (en) * | 2016-11-23 | 2019-07-11 | 台灣櫻花股份有限公司 | Air quality detection method of range hood and range hood thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105444237A (en) * | 2015-12-31 | 2016-03-30 | 欧派家居集团股份有限公司 | Range hood and control method thereof |
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| CN109028238A (en) * | 2018-09-29 | 2018-12-18 | 佛山市云米电器科技有限公司 | A kind of intelligent shift method with vision-based detection module kitchen ventilator |
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