CN110542133B - Automatic suction adjusting method for range hood and range hood - Google Patents
Automatic suction adjusting method for range hood and range hood Download PDFInfo
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- CN110542133B CN110542133B CN201910811236.6A CN201910811236A CN110542133B CN 110542133 B CN110542133 B CN 110542133B CN 201910811236 A CN201910811236 A CN 201910811236A CN 110542133 B CN110542133 B CN 110542133B
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- wind speed
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- oil smoke
- range hood
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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
The invention relates to the technical field of cigarette making machines, in particular to an automatic suction adjusting method of a cigarette making machine, which comprises the following steps: acquiring an oil smoke image in a cooking area through an image acquisition device, and acquiring oil smoke concentration information in the cooking area based on the oil smoke image; collecting environmental wind speed information of a cooking environment where a range hood is located through an anemometer; determining target wind speed information for representing the currently required suction of the range hood according to the oil smoke concentration information and the environment wind speed information, wherein the target wind speed information reflects the wind speed at the position of an air inlet of the range hood; and controlling the cigarette making machine to work based on the target wind speed information. The technical scheme of the invention has the advantages of automatically controlling the suction force of the range hood to have high precision, realizing the purposes of efficiently sucking oil smoke, reducing energy consumption and reducing noise of the range hood, and improving the use experience of users.
Description
Technical Field
The invention relates to the technical field of cigarette making machines, in particular to a method for automatically adjusting suction of a cigarette making machine and the cigarette making machine.
Background
The smoke machine is a kitchen daily-use electric appliance for purifying the environment, is generally arranged above a kitchen range and is used for sucking away smoke, oil smoke, water vapor and the like generated by burning or cooking of the kitchen range in real time and exhausting the smoke, the oil smoke, the water vapor and the like out of the room, thereby reducing the pollution of the kitchen and purifying the air. The existing cigarette machine mainly comprises manual adjustment and automatic adjustment for adjusting the suction force. Wherein, the manual adjustment requires the user to manually adjust the suction of the range hood according to the concentration of the oil smoke; carry out automatically regulated to the suction of cigarette machine among the prior art, mainly through following mode: 1. the range hood provides as large a suction force as possible and operates in a maximum suction mode, which is high in energy consumption and noise; 2. the oil smoke concentration is obtained through an image recognition device, and the wind speed of the corresponding range hood is obtained through linear calculation, but the mode determines that the wind speed factor of the range hood is single, and a wind speed calculation model corresponding to the oil smoke concentration is too simple, so that the suction accuracy of the range hood is poor; 3. the oil smoke granularity is detected by installing the probe at the air inlet of the range hood, the adjustment of the suction force is delayed by the mode, and the single wind speed factor of the range hood is determined, so that the suction force precision of the range hood is poor.
Disclosure of Invention
In order to solve the problems of poor suction control precision, high energy consumption, high noise, poor user experience and the like of the cigarette making machine in the prior art, the invention provides an automatic suction adjustment method of the cigarette making machine and the cigarette making machine.
The invention is realized by the following technical scheme:
a method for automatically adjusting the suction force of a cigarette making machine comprises the following steps:
acquiring an oil smoke image in a cooking area through an image acquisition device, and acquiring oil smoke concentration information in the cooking area based on the oil smoke image;
collecting environmental wind speed information of a cooking environment where a range hood is located through an anemometer;
determining target wind speed information for representing the currently required suction of the range hood according to the oil smoke concentration information and the environment wind speed information, wherein the target wind speed information reflects the wind speed at the position of an air inlet of the range hood;
and controlling the cigarette making machine to work based on the target wind speed information.
Further, the step of controlling the operation of the range hood based on the target wind speed information comprises: controlling the cigarette machine to work at the current required suction; under the suction force, the reduction ratio of the oil smoke concentration at any point of the edge position of the area where the oil smoke is located after the preset response time of the range hood is higher than a preset threshold value; or the edge of the area where the oil smoke is located in the preset response time of the range hood does not exceed the preset range.
Further, the step of determining target wind speed information for representing the currently required suction of the range hood according to the oil smoke concentration information and the environment wind speed information comprises: and determining the wind speed at the position of the air inlet based on a preset wind speed calculation model.
Furthermore, detecting points are screened in a cooking area, and the preset wind speed calculation model is used for predicting the oil smoke distribution in the cooking area after the response time of the range hood is passed on the basis of the horizontal diffusion component and the vertical diffusion component of the oil smoke at the detecting points.
Further, the preset wind speed calculation model has the following calculation formula:
wherein C is the oil smoke concentration at the detection point screened by the cooking area, C0For the back of the area between the point of detection and the oil soot point sourceConcentration of landscape Smoke S0The smoke concentration at the smoke point source is shown, alpha is the horizontal diffusion coefficient of smoke, beta is the vertical diffusion coefficient of smoke, r is the horizontal distance between the detection point and the smoke point source, h is the vertical distance between the detection point and the smoke point source, u is the ambient air speed, v is the air speed at the air inlet of the smoke machine, and t is the response time of the smoke machine.
Further, according to the maximum oil smoke concentration at the kitchen range area and the horizontal distance between the position of the maximum oil smoke concentration at the kitchen range area and the center of the kitchen range, the smoke concentration S at the smoke point source is calculated and obtained0。
Further, the image acquisition device is assembled on the cigarette machine main body, and the anemometer is assembled on the outer side wall of the cigarette machine main body.
Further, the image collecting device is mounted around a cooking bench or at a wall position of a kitchen, and the anemometer is mounted at a kitchen fixing portion.
Further, the kitchen fixing part is a wall body, a cooking bench or a kitchen appliance.
The invention also provides a range hood, comprising:
the image acquisition device is used for acquiring oil smoke images in the cooking area;
the smoke identification module is used for acquiring oil smoke concentration information in a cooking area based on the oil smoke image;
the anemometer is used for acquiring the environmental wind speed information of the cooking environment where the smoke exhaust ventilator is located;
the control unit is used for determining target wind speed information used for representing the currently required suction force of the range hood according to the oil smoke concentration information and the environment wind speed information and controlling the range hood to work based on the target wind speed information;
compared with the prior art, the invention has the following beneficial effects:
in the technical scheme that this application provided, adopt the intelligent control mode, through the oil smoke concentration information in the real-time detection culinary art region, the environment wind speed information of culinary art environment, confirm the target wind speed information that is used for the present required suction of characterization cigarette machine according to oil smoke concentration information and environment wind speed information, and based on target wind speed information control cigarette machine work, make the cigarette machine can adjust the suction of cigarette machine automatically and accurately, thereby realized the high-efficient oil absorption cigarette of cigarette machine, energy consumption and the purpose of making an uproar of falling, user experience of using has been promoted. Further, the cigarette machine that this application provided enables the suction and the oil smoke concentration of cigarette machine and the environment wind speed suits, realizes automatic accurate regulation suction, has high-efficient oil absorption cigarette, the energy consumption is low, the performance that the noise is little.
Drawings
The invention is described in further detail below with reference to the accompanying drawings:
FIG. 1 is a flow chart of a method for automatically adjusting the suction of a cigarette making machine according to the present invention;
figure 2 is a schematic diagram of a cigarette machine according to the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example one
In one embodiment of the present invention, as shown in figure 1, there is provided a method for automatically adjusting the suction of a cigarette making machine, comprising:
s1, acquiring oil smoke images in the cooking area through an image acquisition device, and acquiring oil smoke concentration information in the cooking area based on the oil smoke images;
collecting environmental wind speed information of a cooking environment where a range hood is located through an anemometer;
s2, determining target wind speed information used for representing the currently required suction of the range hood according to the oil smoke concentration information and the environment wind speed information, wherein the target wind speed information reflects the wind speed at the position of an air inlet of the range hood;
and S3, controlling the cigarette making machine to work based on the target wind speed information.
In the embodiment of the application, adopt the intelligent control mode, through the interior oil smoke concentration information of real-time detection culinary art region, the environment wind speed information of culinary art environment, confirm the target wind speed information that is used for the present required suction of characterization cigarette machine according to oil smoke concentration information and environment wind speed information, and control the cigarette machine work based on target wind speed information, make the cigarette machine can adjust the suction of cigarette machine automatically and accurately, thereby realized the high-efficient oil absorption cigarette of cigarette machine, the purpose of energy consumption reduction and noise reduction, user use experience has been promoted, thereby it is single to have solved and confirmed cigarette machine wind speed factor, lead to controlling the poor problem of suction precision of cigarette machine.
In the embodiment, the image acquisition device is assembled on the cigarette machine main body and is used for acquiring the oil smoke image of the cooking area between the upper part of the cooker and the cigarette machine main body. Wherein, the image acquisition device can be a camera. It should be noted that, the present application does not limit the analogy of the oil smoke image in the collection area, and includes but is not limited to: black and white images (grayscale images), color images (RGB images), or video streams.
Of course, it can be understood that the image acquisition device is assembled around a cooking bench or on a wall of a kitchen and used for acquiring oil smoke images of a cooking area between the upper part of the cooking range and the main body of the range hood.
In this embodiment, the range hood further comprises a smoke recognition module for acquiring smoke concentration information within a cooking area based on the smoke image.
Specifically, when the cigarette machine is started, the camera starts to collect oil smoke images of a cooking area under the cigarette machine in real time, the oil smoke images are transmitted to the smoke identification module, and the smoke identification module carries out preprocessing on the oil smoke images and then carries out calculation to obtain oil smoke concentration information in the cooking area. It should be noted that the smoke recognition module in the present invention preprocesses the smoke image and calculates the smoke concentration by using a preprocessing method and a smoke concentration calculation method that are conventional in the art, and are known and available to those skilled in the art.
In the embodiment, the anemometer is assembled on the kitchen fixing part and used for collecting the environmental wind speed information of the cooking environment where the range hood is located; wherein the ambient wind speed refers to a horizontal wind speed in the cooking environment. Specifically, the kitchen fixing part is a wall body, a cooking bench or a kitchen appliance. It is understood that the kitchen appliance may be a refrigerator, a range hood, a rice cooker, an oven or a microwave oven, and the like, and the appliances used in the kitchen are within the protection scope of the present invention.
In another preferred embodiment of this embodiment, the anemometer is mounted on the outer sidewall of the body of the machine.
In this embodiment, the range hood further includes a control unit, configured to determine, according to the oil smoke concentration information and the ambient wind speed information, target wind speed information used for representing a currently required suction force of the range hood, and control the range hood to operate based on the target wind speed information. The control unit is electrically connected with the image acquisition device, the smoke identification module and the anemometer respectively.
In this embodiment, the step of determining target wind speed information for representing the currently required suction of the range hood according to the soot concentration information and the ambient wind speed information includes: and determining the wind speed at the position of the air inlet based on a preset wind speed calculation model.
In this embodiment, a detection point is screened in a cooking area, and the preset wind speed calculation model is used for predicting the smoke distribution in the cooking area after the response time of the range hood is passed based on the horizontal diffusion component and the vertical diffusion component of the smoke at the detection point. The preset wind speed calculation model comprises the following calculation formula:
wherein C is the oil smoke concentration at the detection point screened by the cooking area, C0For detecting background smoke concentration, S, in the region between the point and the oil smoke point source0The smoke concentration at the smoke point source is shown, alpha is the horizontal diffusion coefficient of smoke, beta is the vertical diffusion coefficient of smoke, r is the horizontal distance between the detection point and the smoke point source, h is the vertical distance between the detection point and the smoke point source, u is the ambient air speed, v is the air speed at the air inlet of the smoke machine, and t is the response time of the smoke machine.
The application provides a according to the predetermined wind speed calculation model that the level and the vertical diffusion of oil smoke distribute and establish, make the suction of cigarette machine and oil smoke concentration and environment wind speed can adapt to, realized automatic and accurate regulation cigarette machine suction, make the high-efficient oil absorption cigarette of cigarette machine, the purpose of lowering energy consumption and making an uproar falls to it is single to have solved among the prior art definite cigarette machine wind speed factor, and wind speed calculation model is too simple, leads to the poor problem of suction precision of control cigarette machine.
It is understood that the detection point refers to a point where smoke easily leaks from the cooking area during the process of sucking the smoke generated in the cooking area by the smoke exhauster.
It is understood that the background smoke concentration refers to the smokeless state, i.e. C0The value of (a) is 0, or an image is shot every preset time period (for example, every one minute) acquired by the image acquisition device, and the background smoke concentration refers to the smoke concentration obtained by the previous shot image and performing analysis and calculation according to the shot image; preferably, C0The value of (d) is 0.
In the embodiment, the smoke concentration S at the smoke point source is obtained through calculation according to the maximum oil smoke concentration at the kitchen range area and the horizontal distance between the position of the maximum oil smoke concentration at the kitchen range area and the center of the kitchen range0Wherein the smoke concentration S at the smoke point source0Obtained by the following formula:
wherein S ismThe maximum oil smoke concentration at the range area, rmThe horizontal distance between the position of the maximum oil smoke concentration in the range area and the center of the range, and alpha is the horizontal diffusion coefficient of the oil smoke.
The value of alpha is related to the size of the stove and the distance between the stove head and the edge of the stove, wherein the value range of alpha is 0.02-0.06.
The value of beta is related to the type of the range hood, such as side suction, top suction, and the height of the range hood from the table top, wherein the value of beta is 8.02-10.97.
The range of response time t of the range hood is 2-4 s, and preferably t is 3 s.
In this embodiment, the step of controlling the operation of the range hood based on the target wind speed information includes: controlling the cigarette machine to work at the current required suction; under the suction force, the reduction ratio of the oil smoke concentration at any point of the edge position of the area where the oil smoke is located after the preset response time of the range hood is higher than a preset threshold value; or the edge of the area where the oil smoke is located in the preset response time of the range hood does not exceed the preset range. Therefore, the smoke exhaust machine can prevent the phenomenon of smoke leakage in a cooking area during working, and the aim of efficiently absorbing the smoke is fulfilled.
Example two
The embodiment of the application also provides a cigarette making machine for implementing the automatic suction adjustment method of the cigarette making machine, as shown in fig. 2, the cigarette making machine comprises: the image acquisition device is used for acquiring oil smoke images in the cooking area; the smoke identification module is used for acquiring oil smoke concentration information in a cooking area based on the oil smoke image; the anemometer is used for acquiring the environmental wind speed information of the cooking environment where the smoke exhaust ventilator is located; and the control unit is used for determining target wind speed information used for representing the currently required suction force of the range hood according to the oil smoke concentration information and the environment wind speed information and controlling the range hood to work based on the target wind speed information.
The application provides a cigarette machine enables the suction of cigarette machine and oil smoke concentration and environment wind speed and suits, realizes automatic accurate regulation suction, has high-efficient oil absorption cigarette, the energy consumption is low, the performance that the noise is little.
It should be noted that any one of the above-mentioned automatic suction force adjusting methods of the cigarette making machine may be implemented or realized in the cigarette making machine provided by this embodiment.
In addition, it should be noted that, for alternative or preferred embodiments of the present embodiment, reference may be made to the relevant description in the first embodiment, and details are not described herein again.
Claims (8)
1. A method for automatically adjusting the suction force of a cigarette making machine is characterized by comprising the following steps:
acquiring an oil smoke image in a cooking area through an image acquisition device, and acquiring oil smoke concentration information in the cooking area based on the oil smoke image;
collecting environmental wind speed information of a cooking environment where a range hood is located through an anemometer;
determining target wind speed information for representing the currently required suction of the range hood according to the oil smoke concentration information and the environment wind speed information, wherein the target wind speed information reflects the wind speed at the position of an air inlet of the range hood;
controlling the cigarette making machine to work based on the target wind speed information;
the step of determining target wind speed information for representing the currently required suction of the range hood according to the oil smoke concentration information and the environment wind speed information comprises the following steps: determining the wind speed at the position of the air inlet based on a preset wind speed calculation model; the preset wind speed calculation model has the following calculation formula:
wherein C is the oil smoke concentration at the detection point screened by the cooking area, C0For detecting background smoke concentration, S, in the region between the point and the oil smoke point source0The smoke concentration at the smoke point source is shown, alpha is the horizontal diffusion coefficient of smoke, beta is the vertical diffusion coefficient of smoke, r is the horizontal distance between the detection point and the smoke point source, h is the vertical distance between the detection point and the smoke point source, u is the ambient air speed, v is the air speed at the air inlet of the smoke machine, and t is the response time of the smoke machine.
2. The method for automatically adjusting the suction of a cigarette making machine according to claim 1, wherein said step of controlling the operation of the cigarette making machine based on said target wind speed information comprises: controlling the cigarette machine to work at the current required suction; under the suction force, the reduction ratio of the oil smoke concentration at any point of the edge position of the area where the oil smoke is located after the preset response time of the range hood is higher than a preset threshold value; or the edge of the area where the oil smoke is located in the preset response time of the range hood does not exceed the preset range.
3. The method for automatically adjusting the suction force of a cigarette making machine as claimed in claim 1, wherein a detection point is screened in a cooking area, and the preset wind speed calculation model is used for predicting the smoke distribution in the cooking area after the response time of the cigarette making machine is passed on the basis of the horizontal diffusion component and the vertical diffusion component of the smoke at the detection point.
4. The automatic suction adjustment method for the cigarette making machine as claimed in claim 1, characterized in that the smoke concentration S at the smoke point source is obtained by calculation according to the maximum smoke concentration at the cooking range area and the horizontal distance between the position of the maximum smoke concentration at the cooking range area and the center of the cooking range0。
5. The automatic suction force adjusting method for the cigarette making machine according to any one of claims 1 to 4, characterized in that the image acquisition device is assembled on the cigarette making machine body, and the anemometer is assembled on the outer side wall of the cigarette making machine body.
6. The automatic suction force adjusting method of a cigarette machine as claimed in any one of claims 1 to 4, characterized in that the image collecting device is mounted around a kitchen or at a wall position of a kitchen, and the anemometer is mounted at a kitchen fixing part.
7. The method for automatically adjusting the suction force of a cigarette machine as claimed in claim 6, wherein the kitchen fixing part is a wall body, a cooking bench or a kitchen appliance.
8. A machine as claimed in any one of claims 1 to 7, comprising:
the image acquisition device is used for acquiring oil smoke images in the cooking area;
the smoke identification module is used for acquiring oil smoke concentration information in a cooking area based on the oil smoke image;
the anemometer is used for acquiring the environmental wind speed information of the cooking environment where the smoke exhaust ventilator is located;
and the control unit is used for determining target wind speed information used for representing the currently required suction force of the range hood according to the oil smoke concentration information and the environment wind speed information and controlling the range hood to work based on the target wind speed information.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113124433A (en) * | 2019-12-31 | 2021-07-16 | 青岛海尔智慧厨房电器有限公司 | Range hood control method and device, range hood and storage medium |
| CN113028473B (en) * | 2021-04-29 | 2022-10-14 | 华帝股份有限公司 | Oil smoke suction and exhaust method, range hood, stove and oil smoke suction and exhaust system |
| CN113108346A (en) * | 2021-04-30 | 2021-07-13 | 宁波方太厨具有限公司 | Speed regulation control method for preventing smoke leakage of range hood |
| CN114608041B (en) * | 2022-03-09 | 2022-12-27 | 宁波方太厨具有限公司 | Smoke machine control method and system, smoke machine and storage medium |
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