CN115751415A - Smoke ventilator and intelligent kitchen utensils and appliances system - Google Patents
Smoke ventilator and intelligent kitchen utensils and appliances system Download PDFInfo
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- CN115751415A CN115751415A CN202211538790.XA CN202211538790A CN115751415A CN 115751415 A CN115751415 A CN 115751415A CN 202211538790 A CN202211538790 A CN 202211538790A CN 115751415 A CN115751415 A CN 115751415A
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Abstract
The application discloses smoke ventilator and intelligent kitchen utensils and appliances system includes: the range hood comprises a range hood body, wherein an air draft device and an air supply device are arranged in the range hood body, an air draft opening is formed in the bottom of the range hood body, a plurality of air curtain air outlets are formed in the bottom of the range hood body, the air draft device is connected with the air draft opening, the air supply device is connected with the air curtain air outlets, and the air curtain air outlets comprise a plurality of first air outlets and a plurality of second air outlets provided with direction adjusting mechanisms; the camera is arranged on one side of the range hood body and used for shooting kitchenware below the range hood; the controller is used for determining the position of the kitchen ware and judging whether smoke needs to be dispersed currently, and when the smoke needs to be dispersed, the air outlet direction of at least part of the second air outlet is adjusted according to the position of the kitchen ware so that the air curtain disperses the smoke between the camera and the kitchen ware.
Description
Technical Field
The application relates to kitchen appliances, in particular to a range hood and an intelligent kitchen ware system.
Background
With the intelligentization of kitchen appliances, more and more new technologies are added to the kitchen, such as image recognition technology. Some kitchen situations can be identified using image recognition techniques. On smoke ventilator, the camera has been installed to equipment and has been carried out intelligent application. Like the lampblack absorber of application number 201710133535.X, it is provided with the camera to improve to the problem that the camera pollutes, but in above-mentioned scheme, though can protect the camera not polluted by smog through the mode of air curtain protection camera, its still can not reduce the influence of oil smoke water smoke to image recognition relatively well under the state that the oil smoke is great or water smoke is great.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a range hood and an intelligent kitchen ware system, which are used for reducing the influence of oil smoke or water mist on the shooting effect of a camera when the camera is used for collecting signals.
On the one hand, this application embodiment provides a smoke ventilator, includes:
the range hood comprises a range hood body, wherein an air draft device and an air supply device are arranged in the range hood body, an air draft opening is formed in the bottom of the range hood body, a plurality of air curtain air outlets are formed in the bottom of the range hood body, the air draft device is connected with the air draft opening, the air supply device is connected with the air curtain air outlets, the air curtain air outlets comprise a plurality of first air outlets and a plurality of second air outlets provided with direction adjusting mechanisms, and the second air outlets are arranged between the air draft opening and a camera;
the camera is arranged on one side of the range hood body and used for shooting the kitchen ware below the range hood;
the controller is used for determining the position of the kitchen ware and judging whether smoke needs to be dispersed currently, and when the smoke needs to be dispersed, the air outlet direction of at least part of the second air outlet is adjusted according to the position of the kitchen ware so that the air curtain disperses the smoke between the camera and the kitchen ware.
In some embodiments, said determining the position of the hob is in particular:
recognizing the position of the kitchen ware through a picture shot by a camera;
or alternatively
When the kitchen range is a whole-region induction cooker, determining the position of the kitchen ware according to positioning data sent by the whole-region induction cooker;
the controller divides the kitchen range into a plurality of regions, each region corresponds to at least one second air outlet, and the controller judges the position of the kitchen range according to the region of the kitchen range.
In some embodiments, a smoke sensor is also provided;
judging whether smoke needs to be dispersed currently, and specifically judging that smoke needs to be dispersed when the smoke sensor detects that the smoke concentration is greater than a threshold value.
In some embodiments, the recognizing the position of the kitchen ware through the picture shot by the camera specifically includes:
receiving a starting signal of the kitchen range, identifying kitchen ware on the kitchen range through the camera when the kitchen range is started, and determining the area to which the kitchen ware belongs and the specific position of the kitchen ware in the area according to the calibration data during initialization.
In some embodiments, according to the position of the kitchen ware, the air outlet direction of at least part of the second air outlet is adjusted, so that the air curtain disperses the smoke between the camera and the kitchen ware, specifically:
selecting a corresponding second air outlet according to the region to which the kitchen ware belongs to adjust the air outlet direction;
and directing the air outlet direction of the selected second air outlet to the center of the bottom of the kitchen ware.
In some embodiments, the determining, according to the calibration data at the time of initialization, an area to which the cookware belongs and a specific position of the cookware in the area includes:
identifying the position of the kitchen ware, and determining the area of the kitchen ware according to the projection center of the kitchen ware on the panel of the kitchen ware;
determining a first coordinate of the kitchen ware in a three-dimensional coordinate system established by taking the camera as an original point at the projection center of the kitchen ware panel according to the height calibration value of the camera and the kitchen ware panel and the calibration size of the kitchen ware panel;
the directional kitchen utensils and appliances bottom center of air-out direction person of the second air outlet that will select specifically is:
determining a second coordinate of the selected second air outlet in the three-dimensional coordinate system according to the calibration position relation between the camera and the air outlet;
and determining the adjusting angle of the second air outlet according to the first coordinate and the second coordinate.
In some embodiments, the second air outlet is provided with a direction-adjusting blade, and the rotating shaft direction of the direction-adjusting blade is parallel to the horizontal plane and the installation wall surface of the range hood.
In some embodiments, the three-dimensional coordinate system has a Z axis perpendicular to the horizontal plane and a Y axis perpendicular to the installation wall, and the X, Y and Z axes are perpendicular to each other;
determining the adjusting angle of the second air outlet according to the first coordinate and the second coordinate, which is specifically as follows:
the first coordinate is (x 1, y1, z 1), the second coordinate is (x 2, y2, z 2);
angle of adjustment = arctan (| z1-z2|/| y1-y2 |).
In some embodiments, further comprising a wireless communication device for communicating with the cooktop.
In another aspect, an embodiment of the present application provides an intelligent kitchen ware system, including:
a range hood;
and the cooker is communicated with the range hood, and controls the power distribution state, adjusts the power or closes the heating function according to the information returned by the range hood.
The embodiment of the application provides a smoke exhaust ventilator, including lampblack absorber body, camera and controller, it includes updraft ventilator and air supply arrangement, be used for making air curtain and convulsions respectively, second air outlet through setting up and possessing direction adjustment mechanism, confirm the current position at place of kitchen utensils and appliances and whether need carry out smog through the controller and dispel at present, when needs are carried out smog and are blown away, through the direction of adjusting the second air outlet, dispel the smog between camera and the kitchen utensils and appliances, influence when can reduce smog water smoke and carry out image recognition to the camera.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a range hood provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a kitchen range and a kitchen ware shot by a camera provided by the embodiment of the application;
FIG. 3 is a schematic view illustrating a calculation of a control angle of a turning vane according to an embodiment of the present application;
FIG. 4 is a schematic view of the direction-adjusting blade and the installation direction of the rotating shaft provided by the embodiment of the present application;
FIG. 5 is a schematic direction-adjusting blade provided by an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a whole-zone induction cooker provided in an embodiment of the present application;
FIG. 7 is a schematic diagram of liquid heating provided by embodiments of the present application;
fig. 8 is a schematic view of fig. 7 after edge processing.
Detailed Description
In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below through embodiments with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, the present embodiment provides a range hood, which includes a range hood body, a camera and a controller.
The mechanism for adjusting the wind direction of the second outlet can be implemented by the structure shown in fig. 4 and 5, which is commonly used in air conditioners and other devices, and adjusts the direction of the wind by adjusting the direction of the wind deflector. It can be understood that the second air outlet is provided with a direction adjusting blade 1031, and the rotating shaft direction of the direction adjusting blade 1031 is parallel to both the horizontal plane and the mounting wall surface of the range hood, and it can be understood that the rotating shaft direction is parallel to the X axis in the coordinate system. Fig. 4 and 5 only provide a structure for adjusting the direction, and in practice, a plurality of direction-adjusting vanes may be adopted, and a turning nozzle or the like may be adopted instead. It can be understood that a valve or a wind guiding plate can be arranged between the air supply device and the air outlets to control the air outlet state.
And the camera 104 is arranged on one side of the range hood body 100 and is used for shooting kitchen ware 201 below the range hood, wherein the kitchen ware is positioned on the kitchen ware panel 200. The kitchen ware in the embodiment refers to kitchen ware such as a wok, a saucepan and the like, and the kitchen ware mainly refers to an induction cooker and can also be a gas stove. In some embodiments, the cooking utensil can be a whole-area induction cooker, and the whole-area induction cooker is an induction cooker which does not limit a specific position for placing a cooking utensil by a user, determines the position of the cooking utensil in an induction mode and calls a corresponding coil to heat. As shown in fig. 6, a plurality of electromagnetic induction heating coils are arranged in a matrix, and when the kitchen ware 201 is in the area in the figure, a controller 202 for controlling the heating coils on the whole-area induction cooker controls the corresponding plurality of electromagnetic induction heating coils C1, C2, C3 and C4 to work. The camera is mainly used for collecting images, sending the images to the controller, recognizing the images by using the trained AI model, and performing specific business processing according to the result of the image recognition. These business processes include, but are not limited to, boiling alarms, fire alarms, boiling center detection, etc. Through the detection, specific service processing can be performed by matching with other intelligent equipment. For example, the boiling center detection can detect the boiling center by means of image recognition, and judge whether the power distribution of the induction cooker needs to be adjusted according to whether the boiling center is in the center of the kitchenware. Or a boiling alarm, when the boiling overflow is detected, the boiling overflow is prevented by controlling the cooker to reduce the power/air supply amount, or the cooker is directly informed to close the cooker head.
The controller is used for determining the position of the kitchen ware and judging whether smoke needs to be dispersed currently, and when the smoke needs to be dispersed, the air outlet direction of at least part of the second air outlet is adjusted according to the position of the kitchen ware so that the air curtain disperses the smoke between the camera and the kitchen ware. It should be understood that in this embodiment, blow to kitchen utensils and appliances through the second air outlet, can clear up a passageway for the shooting sight of camera to a certain extent, with smog to the wall direction dispel, reduce the concentration of smog or water smoke on the camera shooting sight, reduce the influence that these smokes shot to the camera, improve the recognition accuracy of camera.
Specifically, the location of the cooktop can be determined in the following manner:
in some embodiments, the position of the kitchen ware can be identified through a picture shot by the camera.
When the cooktop is a fixed-cooktop cooker and is provided with a cooktop state detection function, the position of the kitchenware can be determined based on the acquired cooktop state.
When the cooking utensils are the subregion electromagnetism stove, confirm the position of kitchen utensils and appliances according to the locating data that the subregion electromagnetism stove sent, in the subregion electromagnetism stove, the subregion electromagnetism stove can sense the position of kitchen utensils and appliances to confirm which coil in the start coil array based on the position of kitchen utensils and appliances, thereby realize not restricting the function that the user placed the kitchen utensils and appliances position. By utilizing the function, the position of the kitchen ware can be determined through the positioning information of the whole-area induction cooker. The identification mode can be selected according to the type of the cooker (with different functions). For example, boiling monitoring may be initiated while cooking the soup. And when the position relation between the kitchen range and the range hood is known, the position of the kitchen range relative to the air outlet can be determined according to the position information reported by the kitchen range.
The controller divides the kitchen range into a plurality of areas, each area corresponds to at least one second air outlet, and the controller judges the position of the kitchen range according to the area of the kitchen range. It can be understood that, in order to simplify the structure and reduce the complexity of the algorithm, a second air outlet with a direction adjusting function can be correspondingly arranged for each area, and when smoke dissipation is required to be carried out on the kitchen ware in a certain area, only the corresponding second air outlet is started. This has the advantage that when smoke dissipation is required in different areas, it is possible to simultaneously dissipate to a plurality of different areas. The design can be adapted to the characteristics of the whole-area induction cooker, namely the placement position of the kitchenware of the whole-area induction cooker can be uncertain. The second air outlets can be arranged along the Z-axis direction and correspond to the zones of the stove. It will be appreciated that the above approach requires the positional relationship between the cooktop and range hood to be set at initialization. For example, the installation height difference of the cooking range and the smoke exhaust machine, the size of the cooking range and the like are set.
Whether smoke needs to be dispersed at present or not is judged, and a smoke sensor can be arranged; and when the smoke sensor detects that the smoke concentration is greater than a threshold value, determining that smoke needs to be dispersed. Of course, the concentration (humidity) of the mist may be detected by a sensor, and the mist (water mist) may be dispersed when the concentration of the mist is greater than a threshold value. A sensor may be provided to determine if a dispel is required. Furthermore, the dispersion control can be carried out according to the sampling requirement of the camera. For example, the camera performs sampling analysis for two seconds every three seconds, and the second air outlet may operate in a manner of performing air outlet for two seconds every three seconds. It will be appreciated that the duty cycle of the second outlet may be advanced relative to the camera to ensure smoke dispersal.
In some embodiments, the recognizing a position of the kitchen ware through the picture taken by the camera specifically includes:
receiving a starting signal of the kitchen range, identifying kitchen ware on the kitchen range through the camera when the kitchen range is started, and determining the area to which the kitchen ware belongs and the specific position of the kitchen ware in the area according to the calibration data during initialization.
Specifically, the method comprises the following steps:
and identifying the position of the kitchen ware, and determining the area of the kitchen ware according to the projection center of the kitchen ware on the panel of the kitchen ware. By taking a geometric measurement in the image, the center of the cookware, which is generally circular, can be determined, and thus its central position can be easily determined.
According to the height calibration value of the camera and the kitchen range panel and the calibration size of the kitchen range panel, determining a first coordinate of the kitchen range in a three-dimensional coordinate system established by taking the camera as an original point at the projection center of the kitchen range panel.
As shown in fig. 1 and 2, a three-dimensional coordinate system is established with the camera as an origin o, wherein a direction perpendicular to a horizontal plane is a Z-axis, a direction perpendicular to the installation wall is a Y-axis, and the X, Y, and Z-axes are perpendicular to each other. As can be seen from fig. 1 and 2, in practice, the Z axis is an axis perpendicular to the horizontal plane (assuming that the wall on which the range hood is mounted is perpendicular to the horizontal plane), the Y axis is perpendicular to the mounting surface of the range hood, and the X axis is parallel to the length direction of the cooker panel. In the embodiment, the actual distance can be used as the measurement of the three-dimensional coordinate, and the size in the image is calibrated according to the distance of the camera and the size of the cooker panel, so as to determine the coordinate of each point in the image in the three-dimensional coordinate system. In the image, how much distance a pixel represents can be measured according to the size of the cooktop panel. And the kitchen range panel and the kitchen ware are in regular shapes, so that the distance in the image is converted into the actual distance under the condition of low measurement requirement precision, and the coordinate in the coordinate system is obtained. For example, the width of the cooker panel is 40cm, and the cooker panel occupies 800 pixel points, which indicates that each pixel point in the image represents 0.05cm in the plane of the cooker panel. Specifically, referring to fig. 1, 2 and 3, the position relationship between the air outlet and the camera is determined, and the distance represented by the pixels in the image is also determined, so that the projection position of the second air outlet, namely the projection b point of the point d on the stove, can be determined in the image. If the included angle between the connecting line of the point a and the point d of the center of the kitchen ware and the horizontal plane needs to be measured, the xyz parameter needs to be considered, and in the embodiment, the adjusting plate of the second air outlet only has one rotating shaft. Therefore, in practice, only the included angle between the steering blade and the horizontal plane needs to be calculated, and the actual control information is also the calculated angle α, so that the problem can be converted into the calculation of the triangle ≥ bcd. The calculation mode is ═ α = arctan (| z1-z2|/| y1-y2 |), wherein the point a coordinate is (x 1, y1, z 1), the center coordinate of the kitchen ware, the point b coordinate is (x 2, y2, z 1), the projection point of the air outlet on the kitchen range panel is (x 2, y2, z 2), namely the coordinate of the second air outlet, the point c is the projection of the point a on a straight line which is parallel to the y axis and passes through the point b, and the coordinate of the point c can be determined to be (x 2, y1, z 1). Since d is in the same plane as the camera, z2 is practically equal to 0. And z1 is actually the distance from the camera to the cooktop panel, and is known. Therefore, the included angle alpha of the direction-adjusting blade can be calculated by measuring the corresponding xy coordinate information through the image.
Therefore, in the foregoing embodiment, according to the position of the kitchen ware, the air outlet direction of at least part of the second air outlet is adjusted, so that the air curtain disperses the smoke between the camera and the kitchen ware, specifically:
selecting a corresponding second air outlet according to the region to which the kitchen ware belongs to adjust the air outlet direction;
the air outlet direction of the selected second air outlet points to the center of the bottom of the kitchen ware.
Specifically, the method comprises the following steps:
determining a second coordinate of the selected second air outlet in the three-dimensional coordinate system according to the calibration position relation between the camera and the air outlet;
and determining the adjusting angle of the second air outlet according to the first coordinate and the second coordinate. Specifically, the first coordinate is (x 1, y1, z 1), and the second coordinate is (x 2, y2, z 2); angle of adjustment = arctan (| z1-z2|/| y1-y2 |).
In some embodiments, the stove further comprises a wireless communication device, the wireless communication device is used for communicating with the stove and can communicate in a wireless communication mode such as an infrared receiving tube, wifi, bluetooth or zigbee.
In another aspect, the present embodiment provides an intelligent kitchen tool system, including:
a range hood;
and the cooker is communicated with the range hood, and controls the power distribution state, adjusts the power or closes the heating function according to the information returned by the range hood.
The functions of adjusting the power level or turning off the heating function in the rate distribution state will be further described.
Referring to fig. 6, fig. 6 illustrates a structure of a whole-area induction cooker, in which a dotted circle indicates a position on a panel of an induction cooker 200 covered by a cooking utensil 201, and the position of the cooking utensil can be identified by a camera provided in a range hood, and at this time, a function of rate distribution, power adjustment, or turning off a heating function can be performed according to a boiling state in the cooker. It can be understood that, for the adjustment of the power, the adjustment may be controlled according to the boiling condition in the kitchen ware, for example, in some embodiments, the boiling of the fire may cause overflow, the range hood may send a feedback signal to the induction cooker according to the identification result, and the controller reduces the output power and reduces the boiling. After boiling overflow is identified, the electromagnetic oven can be controlled to be closed for overflow detection. The boiling state can be identified, and the judgment can be carried out by identifying the size and the distribution condition of the bubbles in the kitchenware. As shown in fig. 7, the position of bubble generation in the kitchen tool actually reflects the distribution of heating power, and the effect graph shown in fig. 8 can be obtained by performing edge detection through the Canny algorithm. At this time, the number, size, and density of bubbles may be counted. If the bubbles are concentrated in a part, which actually means that the part is heated more than other areas, it is generally desirable to control the boiling center in the middle area of the cookware, so that the possibility of overflowing can be reduced during boiling. The range hood can count according to the window with the set size, count the bubble density corresponding to each window, determine the area with the maximum bubble density as the boiling center, send the position information of the boiling center corresponding to the induction cooker, and then control the power of the induction cooker. At this time, the induction cooker may be informed of further control of the power distribution of the coil through image recognition.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. Those skilled in the art will appreciate that the present application is not limited to the particular embodiments described herein, but is capable of many obvious modifications, rearrangements and substitutions without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (10)
1. A range hood, comprising:
the range hood comprises a range hood body, wherein an air draft device and an air supply device are arranged in the range hood body, an air draft opening is formed in the bottom of the range hood body, a plurality of air curtain air outlets are formed in the bottom of the range hood body, the air draft device is connected with the air draft opening, the air supply device is connected with the air curtain air outlets, and the air curtain air outlets comprise a plurality of first air outlets and a plurality of second air outlets provided with direction adjusting mechanisms;
the camera is arranged on one side of the range hood body and used for shooting the kitchen ware below the range hood;
the controller is used for determining the position of the kitchen ware and judging whether smoke needs to be dispersed currently, and when the smoke needs to be dispersed, the air outlet direction of at least part of the second air outlet is adjusted according to the position of the kitchen ware so that the air curtain disperses the smoke between the camera and the kitchen ware.
2. A hood as claimed in claim 1, wherein the determination of the location of the cooktop is in particular: recognizing the position of the kitchen ware through a picture shot by a camera;
or
When the kitchen range is a whole-region induction cooker, determining the position of the kitchen ware according to positioning data sent by the whole-region induction cooker; the controller divides the stove into a plurality of areas, and each area corresponds to at least one second air outlet.
3. A range hood as claimed in claim 1, wherein a smoke sensor is also provided;
judging whether smoke needs to be dispersed currently, and specifically judging that smoke needs to be dispersed when the smoke sensor detects that the smoke concentration is greater than a threshold value.
4. The range hood of claim 2, wherein the picture taken by the camera identifies the location of the kitchen ware, and specifically comprises:
receiving a starting signal of the kitchen range, identifying the kitchen ware on the kitchen range through the camera when the kitchen range is started, and determining the area to which the kitchen ware belongs and the specific position of the kitchen ware in the area according to the calibration data during initialization.
5. The range hood of claim 4, wherein the direction of the air output of at least part of the second air outlets is adjusted according to the position of the kitchen ware, so that the air curtain disperses the smoke between the camera and the kitchen ware, specifically:
selecting a corresponding second air outlet according to the region to which the kitchen ware belongs to adjust the air outlet direction;
and directing the air outlet direction of the selected second air outlet to the center of the bottom of the kitchen ware.
6. The range hood according to claim 5, wherein the area to which the kitchen ware belongs and the specific position of the kitchen ware in the area are determined according to the calibration data at the time of initialization, specifically:
identifying the position of the kitchen ware, and determining the area of the kitchen ware according to the projection center of the kitchen ware on the panel of the kitchen ware;
determining a first coordinate of the kitchen ware in a three-dimensional coordinate system established by taking the camera as an original point at the projection center of the kitchen ware panel according to the height calibration value of the camera and the kitchen ware panel and the calibration size of the kitchen ware panel;
the directional kitchen utensils and appliances bottom center of air-out direction person of the second air outlet that will select specifically is:
determining a second coordinate of the selected second air outlet in the three-dimensional coordinate system according to the calibration position relation between the camera and the air outlet;
and determining the adjusting angle of the second air outlet according to the first coordinate and the second coordinate.
7. The range hood of claim 6, wherein the second air outlet is provided with direction-adjusting vanes, and the direction of the rotating shaft of the direction-adjusting vanes is parallel to the horizontal plane and the installation wall of the range hood.
8. The range hood of claim 6, wherein in the three-dimensional coordinate system, a direction perpendicular to a horizontal plane is a Z axis, a direction perpendicular to a mounting wall is a Y axis, and the X, Y and Z axes are perpendicular to each other;
determining the adjusting angle of the second air outlet according to the first coordinate and the second coordinate, which is specifically as follows:
the first coordinate is (x 1, y1, z 1), and the second coordinate is (x 2, y2, z 2);
angle of adjustment = arctan (| z1-z2|/| y1-y2 |).
9. The range hood of claim 1, further comprising a wireless communication device for communicating with the range.
10. An intelligent cookware system, comprising:
the range hood of claim 1;
and the cooker is communicated with the range hood, and controls the power distribution state, adjusts the power or closes the heating function according to the information returned by the range hood.
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| CN202211538790.XA CN115751415A (en) | 2022-12-02 | 2022-12-02 | Smoke ventilator and intelligent kitchen utensils and appliances system |
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| CN202211538790.XA CN115751415A (en) | 2022-12-02 | 2022-12-02 | Smoke ventilator and intelligent kitchen utensils and appliances system |
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