Cooking appliance and control method and apparatus therefor, electronic device, and storage medium

Abstract

The present application provides a cooking appliance and a control method and apparatus therefor, an electronic device, and a storage medium. The cooking appliance is provided with a cooking cavity, the cooking appliance comprises a photographing assembly and an air supply assembly, the photographing assembly is used for capturing an image of a food material in the cooking cavity, and the air supply assembly is used for supplying air to the cooking cavity. The control method for the cooking appliance comprises: acquiring an image of a food material; determining color information of the food material on the basis of the image; determining a rotation speed parameter of the air supply assembly on the basis of the color information; and controlling the operation of the air supply assembly on the basis of the rotation speed parameter. In the control method for the cooking appliance provided by the present application, the rotation speed of the air supply assembly is dynamically regulated on the basis of the color information of the food material, so that the possibility of overcooking or undercooking of the food material can be reduced, the degree of doneness of the food material better matches the settings of a user, and the cooking effect of the cooking appliance is improved.

Description

Cooking appliance, control method and device thereof, electronic device, and storage medium

[0001] The present application claims priority to a Chinese patent application No. 202411273211.2, filed on September 11, 2024, and entitled "Cooking appliance, control method and device thereof, electronic device, and storage medium"; and a Chinese patent application No. 202411273202.3, filed on September 11, 2024, and entitled "Cooking appliance, control method and device thereof, electronic device, and storage medium", the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of cooking appliances, in particular to a cooking appliance and a control method, device, electronic device and storage medium thereof. BACKGROUND

[0003] At present, cooking appliances such as steam ovens and air fryers usually have the function of hot air heating. In the related art, the air supply speed of the cooking appliance usually needs to be set by the user through a menu. After the cooking starts, the air supply speed of the hot air is constant, which may easily cause the food to be overcooked or undercooked. SUMMARY

[0004] The present application aims to at least solve or improve the technical problem that the air supply rate of the cooking appliance is constant during cooking in the prior art, which may easily cause the food to be overcooked or undercooked.

[0005] To this end, a first aspect of the present application provides a control method of a cooking appliance.

[0006] A second aspect of the present application provides a control device of a cooking appliance.

[0007] A third aspect of the present application provides an electronic device.

[0008] A fourth aspect of the present application provides a storage medium.

[0009] A fifth aspect of the present application provides a cooking appliance.

[0010] Therefore, according to the first aspect of the present application, the present application provides a control method of a cooking appliance, the cooking appliance having a cooking cavity, the cooking appliance comprising a shooting assembly and an air supply assembly, the shooting assembly being configured to shoot an image of food in the cooking cavity, and the air supply assembly being configured to supply air to the cooking cavity; the control method of the cooking appliance comprising: obtaining the image of the food; determining color information of the food according to the image; determining a rotation speed parameter of the air supply assembly according to the color information; and controlling the air supply assembly to operate according to the rotation speed parameter.

[0011] The control method of the cooking appliance is executed by the cooking appliance, the cooking appliance comprises a shooting assembly and an air supply assembly, the cooking appliance has a cooking cavity, the shooting assembly is configured to shoot an image of food materials in the cooking cavity, and the air supply assembly is configured to supply air to the cooking cavity. When the cooking appliance is cooking, the food materials are placed in the cooking cavity, and the air supply assembly supplies air to the cooking cavity to achieve a cooking effect.

[0012] The control method of the cooking appliance comprises: obtaining an image of the food materials by the shooting assembly, analyzing the image of the food materials to determine color information of the food materials, determining a rotation speed parameter of the air supply assembly according to the color information of the food materials, and then controlling the air supply assembly to operate according to the rotation speed information of the air supply assembly to realize dynamic adjustment of the cooking process. The color information of the food materials can reflect the maturity of the surface layer of the food materials to a certain extent. Therefore, the rotation speed of the air supply assembly is dynamically adjusted according to the color information of the food materials, which can reduce the possibility of overcooking or overburning of the food materials, so that the maturity of the food materials is more in line with the user's setting, and the cooking effect of the cooking appliance is improved.

[0013] In some embodiments, the cooking appliance further comprises a steam generation assembly configured to deliver steam to the cooking cavity. The method further comprises: determining the rotation speed parameter of the air supply assembly according to the color information, including: in a case where the color information does not exceed a first color threshold, determining the rotation speed parameter according to the color information and a second color threshold; and in a case where the color information exceeds the first color threshold, determining the rotation speed parameter as a target rotation speed parameter and controlling the steam generation assembly to be turned on. The second color threshold is less than or equal to the first color threshold.

[0014] In some embodiments, the method further comprises: in a case where the color information does not exceed the first color threshold, determining the rotation speed parameter according to the color information and the second color threshold, including: in a case where the color information does not exceed the first color threshold, if the color information exceeds the second color threshold, increasing the rotation speed parameter to a first rotation speed parameter by a proportional algorithm; and if the color information does not exceed the second color threshold, reducing the rotation speed parameter to a second rotation speed parameter by the proportional algorithm.

[0015] In some embodiments, the method further comprises: before determining the color information of the food materials according to the image, determining a type and a weight of the food materials according to the image; and determining the first color threshold and the second color threshold according to the type, the weight, and a cooking target set by a user.

[0016] In some embodiments, the cooking appliance further comprises a steam generation assembly configured to deliver steam to the cooking cavity. The method further comprises: in a case where the rotation speed parameter is less than or equal to 0, controlling the steam generation assembly to be turned on.

[0017] In some embodiments, the cooking appliance further includes a temperature detection component configured to detect a first temperature value in the cooking cavity, and a heating component configured to heat the inside of the cooking cavity. The control method of the cooking appliance further includes: determining a temperature adjustment value according to the rotation speed parameter; determining a target heating parameter of the heating component according to the first temperature value and the temperature adjustment value; and controlling the heating component to operate according to the target heating parameter.

[0018] In some embodiments, the rotation speed parameter and the temperature adjustment value are in direct proportion.

[0019] In some embodiments, the controlling the heating component to operate according to the target heating parameter includes: determining a heating parameter adjustment value in a unit time according to the target heating parameter and a first heating parameter, wherein the first heating parameter is a current heating parameter of the heating component; and controlling the heating component to adjust the heating parameter once in each unit time according to the heating parameter adjustment value until the heating parameter is equal to the target heating parameter.

[0020] In some embodiments, the determining the heating parameter adjustment value in a unit time according to the target heating parameter and the first heating parameter includes: determining a difference value between the target heating parameter and the first heating parameter; and determining the heating parameter adjustment value according to the difference value and an adjustment coefficient corresponding to the unit time.

[0021] In some embodiments, the determining the temperature adjustment value according to the rotation speed parameter includes: obtaining the rotation speed parameter of the air supply component; determining a compensation value of the first temperature value according to the rotation speed parameter; determining a core temperature value according to the first temperature value and the compensation value; and determining the temperature adjustment value according to a target temperature value and the core temperature value, wherein the target temperature value is a temperature value that the cooking appliance is expected to reach.

[0022] In some embodiments, the determining the core temperature value according to the first temperature value and the compensation value includes: summing the first temperature value and the compensation value to obtain a second temperature value; and determining the core temperature value through the second temperature value and a preset mapping relationship.

[0023] In some embodiments, the rotation speed parameter and the compensation value are in direct proportion.

[0024] According to a second aspect of the present application, the present application provides a control device of a cooking appliance, the cooking appliance having a cooking cavity, the cooking appliance comprising a shooting assembly and an air supply assembly, the shooting assembly being configured to shoot an image of food material in the cooking cavity, and the air supply assembly being configured to supply air to the cooking cavity; the control device of the cooking appliance comprising: an obtaining module configured to obtain the image of the food material; a first determining module configured to determine color information of the food material according to the image; a second determining module configured to determine a rotating speed parameter of the air supply assembly according to the color information; and a first control module configured to control the air supply assembly to operate according to the rotating speed parameter.

[0025] According to a third aspect of the present application, the present application provides an electronic device comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions being executed by the processor to implement the steps of the control method of the cooking appliance according to the first aspect.

[0026] According to a fourth aspect of the present application, the present application provides a storage medium, the storage medium storing a program or instructions, the program or instructions being executed by the processor to implement the steps of the control method of the cooking appliance according to the first aspect.

[0027] According to a fifth aspect of the present application, the present application provides a cooking appliance comprising: the control device of the cooking appliance according to the second aspect; or the electronic device according to the third aspect; or the storage medium according to the fourth aspect.

[0028] In some embodiments, the cooking appliance further comprises a main body, the cooking cavity of the cooking appliance being located in the main body; wherein the air supply assembly and the heating assembly of the cooking appliance are arranged on the main body and located at the back side of the cooking cavity.

[0029] In some embodiments, the heating assembly is a graphene heating tube.

[0030] In some embodiments, the cooking appliance further comprises a first control assembly, and a second control assembly electrically connected to the first control assembly and configured to control the heating assembly to work; wherein the first control assembly is configured to output a signal to the second control assembly to realize the control of the heating assembly by the second control assembly.

[0031] In some embodiments, the second control assembly comprises a relay electrically connected to the first control assembly, and a duty cycle first control assembly electrically connected to the relay and the first control assembly; wherein the first control assembly is configured to output an opening signal to the relay and output a duty cycle signal to the duty cycle first control assembly.

[0032] Additional aspects and advantages of the present application will become apparent from the following description part, or can be understood by practicing the present application. BRIEF DESCRIPTION OF DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0034] FIG. 1 shows one of flowcharts of a control method of a cooking appliance according to an embodiment of the present application;

[0035] FIG. 2 shows another of flowcharts of a control method of a cooking appliance according to an embodiment of the present application;

[0036] FIG. 3 shows a third of flowcharts of a control method of a cooking appliance according to an embodiment of the present application;

[0037] FIG. 4 shows a structural block diagram of a control device of a cooking appliance according to an embodiment of the present application;

[0038] FIG. 5 shows a structural block diagram of a control device of a cooking appliance according to an embodiment of the present application;

[0039] FIG. 6 shows a structural block diagram of an electronic device according to an embodiment of the present application;

[0040] FIG. 7 shows one of exploded views of a cooking appliance according to an embodiment of the present application;

[0041] FIG. 8 shows another of exploded views of a cooking appliance according to an embodiment of the present application;

[0042] FIG. 9 shows a third of exploded views of a cooking appliance according to an embodiment of the present application;

[0043] FIG. 10 shows a circuit connection diagram of a first control component, a relay, a duty ratio controller, a heating component, a wind speed controller, and a blowing component of a controller in a cooking appliance according to an embodiment of the present application;

[0044] FIG. 11 shows a temperature rise curve comparison diagram of a graphene heating tube and a general heating tube in a related art, which is employed in a cooking appliance according to an embodiment of the present application.

[0045] In FIGS. 7 to 10, the correspondence between reference numerals and component names is as follows: 700 cooking appliance, 702 main body, 710 cooking cavity, 720 photographing component, 730 blowing component, 732 driving member, 734 impeller, 736 cover, 740 steam generating component, 750 temperature detecting component, 760 heating component, 762 first heating member, 764 second heating member, 766 third heating member, 770 first control component, 780 second control component, 782 relay, 784 duty ratio controller, 790 wind speed controller. DETAILED DESCRIPTION

[0046] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0047] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other manners different from those described herein. Therefore, the scope of the protection of the present application is not limited by the specific embodiments disclosed below.

[0048] The cooking appliance and the control method, device, electronic equipment and storage medium thereof according to some embodiments of the present application are described below with reference to FIGS. 1-11.

[0049] FIG. 1 shows one of the flowcharts of the control method of the cooking appliance according to an embodiment of the present application. As shown in FIG. 1, the control method of the cooking appliance according to an embodiment of the present application has the following steps:

[0050] Step 102: Obtain an image of the food material.

[0051] For example, the image of the food material is obtained by the shooting assembly, that is, the shooting assembly shoots the image in the cooking cavity.

[0052] Step 104: Determine the color information of the food material according to the image.

[0053] For example, the image is analyzed, the image of the food material in the image is extracted, and the color information of the food material, that is, the coloring degree of the food material, is determined.

[0054] Step 106: Determine the rotation speed parameter of the air supply assembly according to the color information.

[0055] For example, the rotation speed parameter of the air supply assembly is determined according to the color information of the food material, so as to realize dynamic adjustment of the rotation speed of the air supply assembly.

[0056] Step 108: Control the air supply assembly to operate according to the rotation speed parameter.

[0057] For example, the operation of the air supply assembly is controlled according to the rotation speed information of the air supply assembly.

[0058] The control method of the cooking appliance provided by the present application is executed by the cooking appliance, which comprises a shooting assembly and an air supply assembly. The cooking appliance has a cooking cavity, the shooting assembly is used to shoot an image of the food material in the cooking cavity, and the air supply assembly is used to supply air to the cooking cavity. When the cooking appliance is cooking, the food material is placed in the cooking cavity, and the air supply assembly supplies air to the cooking cavity to achieve a cooking effect.

[0059] The control method of the cooking appliance comprises: obtaining an image of the food material through a shooting assembly, and analyzing the image of the food material to determine color information of the food material, and determining a rotation speed parameter of the air supply assembly according to the color information of the food material, and then controlling the air supply assembly to operate according to the rotation speed information of the air supply assembly to realize dynamic adjustment of the cooking process. The color information of the food material can reflect the maturity of the surface layer of the food material to a certain extent. Therefore, the rotation speed of the air supply assembly is dynamically adjusted according to the color information of the food material, which can reduce the possibility of overcooking or overburning of the food material and improve the cooking effect of the cooking appliance.

[0060] In some embodiments, the cooking appliance further comprises a steam generation assembly configured to deliver steam to the cooking cavity. The method further comprises: determining the rotation speed parameter of the air supply assembly according to the color information, comprising: in a case where the color information does not exceed a first color threshold, determining the rotation speed parameter according to the color information and a second color threshold; and in a case where the color information exceeds the first color threshold, determining the rotation speed parameter as a target rotation speed parameter and controlling the steam generation assembly to be turned on. The second color threshold is less than or equal to the first color threshold.

[0061] In this embodiment, at each time point of the cooking process, there is a second color threshold corresponding to the time period, and after the cooking is completed, the corresponding first color threshold is the final effect to be achieved by the cooking. Therefore, the method further comprises: in a case where the color information does not exceed the first color threshold corresponding to the final effect to be achieved by the cooking, determining the rotation speed parameter according to the color information of the food material and the second color threshold corresponding to the current cooking time point. In this case, the color information of the food material does not exceed the first color threshold corresponding to the final effect to be achieved by the cooking, which indicates that the surface layer of the food material is not overcooked in the current cooking. In this case, the rotation speed parameter is determined according to the color information of the food material and the second color threshold corresponding to the current cooking time point to dynamically adjust the rotation speed of the air supply assembly, so that the color parameter of the food material is the first color threshold corresponding to the final effect to be achieved by the cooking after the cooking is completed, thereby improving the cooking effect of the cooking appliance.

[0062] The cooking appliance further comprises a steam generation assembly configured to deliver steam to the cooking cavity. In a case where the color information has exceeded the first color threshold corresponding to the final effect to be achieved by the cooking, if the cooking is not completed, the rotation speed parameter is determined as the target rotation speed parameter, and the steam generation assembly is controlled to be turned on. After the steam generation assembly is turned on, water can be supplied to the cooking cavity, thereby slowing down the color change of the surface layer of the food material, reducing the occurrence of overcooking of the surface layer of the food material, reducing the possibility of burning of the food material, and improving the cooking effect of the cooking appliance.

[0063] The second color threshold is less than or equal to the first color threshold, that is, a plurality of time points can be selected in the whole cooking process, and a second color threshold is matched for each time point, and the first color threshold is matched for the final time point, that is, the color threshold after the cooking of the food material is completed, wherein the second color threshold can gradually increase with the change of the time point until the end of the cooking.

[0064] In some embodiments, when the color information does not exceed the first color threshold, the speed parameter is determined according to the color information and the second color threshold, including: when the color information does not exceed the first color threshold, if the color information exceeds the second color threshold, the speed parameter is increased to the first speed parameter by a proportional algorithm; if the color information does not exceed the second color threshold, the speed parameter is reduced to the second speed parameter by the proportional algorithm.

[0065] In this embodiment, when the color information does not exceed the first color threshold, the speed parameter is determined according to the color information and the second color threshold, including: when the color information does not exceed the first color threshold, if the color information does not exceed the second color threshold, the color information and the second color threshold corresponding to the color information are brought into a proportional integral algorithm (PID), thereby obtaining the first speed parameter, wherein the first speed parameter is greater than the current speed parameter, that is, when the current color information of the food material does not exceed the second color threshold corresponding to the current time point, the speed parameter is increased to the first speed parameter.

[0066] If the color information exceeds the second color threshold, the color information and the second color threshold corresponding to the color information are brought into the proportional integral algorithm, thereby obtaining the second speed parameter, wherein the second speed parameter is less than the current speed parameter, that is, when the current color information of the food material exceeds the second color threshold corresponding to the current time point, the speed parameter is reduced to the second speed parameter.

[0067] For example, the proportional integral algorithm is: Flow=(Si-Sc)×P1+(d(Si-Sc) / dt)×I1, wherein Flow represents the speed parameter, Sc represents the collected color information, Si represents the second color threshold of the time point corresponding to Sc, (d(Si-Sc) / dt) represents the derivative of (Si-Sc) with respect to time t, P1 and I1 are both constants, which can be determined by experience or actual measurement.

[0068] In some embodiments, exemplary, before determining the color information of the food material according to the image, the control method of the cooking appliance further comprises: determining the category and weight of the food material according to the image; and determining the first color threshold and the second color threshold according to the category, the weight, and the cooking target set by the user.

[0069] In this embodiment, before determining the color information of the food material according to the image, the control method of the cooking appliance further comprises: analyzing the image, determining the category and weight of the food material according to the image of the food material, and combining the category, the weight of the food material, and the cooking target set by the user to determine the first color threshold and the second color threshold.

[0070] Exemplary, after the user puts the food material into the cooking cavity, the user can set the cooking target, and then the cooking appliance acquires the image of the food material, and determines the category and weight of the food material according to the image of the food material, combines the category, the weight of the food material, and the cooking target to determine the cooking time, temperature, and air speed and other parameters of the entire cooking process, and determines the second color threshold corresponding to each time point and the first color threshold required for the final cooking.

[0071] The cooking target can be a color target or a taste target, etc.

[0072] For example: the user sets the first color threshold to 0.9, the shooting assembly determines that the initial color information of the food material is 0.1, and then determines the cooking time required for the color information of the food material to change to 0.9 through the database, divides the entire cooking time into several cooking stages, and matches a second color threshold for each cooking stage, that is, after the completion of the cooking stage, the color information of the food material should reach the second color threshold corresponding to the cooking stage, and in the cooking process, the color information of the food material is analyzed according to the image of the food material, and compared with the second color threshold corresponding thereto, if the color information does not reach, the air speed and air volume are increased, and if the color information exceeds, the air speed and air volume are reduced, so as to achieve the purpose of dynamically adjusting the air speed and air volume, and after the cooking is completed, the color information of the food material can be exactly equal to 0.9.

[0073] In addition, the recognition of the category and weight of the food material can be recognized by artificial intelligence algorithm or big data technology, etc.

[0074] In some embodiments, exemplary, the cooking appliance further comprises a steam generating assembly for delivering steam to the cooking cavity; and the control method of the cooking appliance further comprises: controlling the steam generating assembly to be turned on when the rotation speed parameter is less than or equal to 0.

[0075] In this embodiment, the cooking utensil further comprises a steam generation assembly, which can deliver steam to the cooking cavity, and the control method of the cooking utensil further comprises: in the case that the rotation speed parameter of the air supply assembly is less than or equal to 0, controlling the steam generation assembly to be turned on, wherein the rotation speed parameter of the air supply assembly being less than or equal to 0 indicates that the current color threshold has exceeded the second color threshold corresponding to the current time point, and thus the steam generation assembly is turned on to supplement water into the cooking cavity, thereby delaying the color change speed of the surface layer of the food, reducing the occurrence of overcooking of the surface layer of the food, reducing the possibility of burning of the food, and improving the cooking effect of the cooking utensil.

[0076] In this embodiment, the steam generation assembly can be kept at a small gear after being turned on to ensure that the shooting assembly can shoot a clear image.

[0077] In some embodiments, the cooking utensil further comprises a temperature detection assembly and a heating assembly, the temperature detection assembly is used to detect a first temperature value in the cooking cavity, and the heating assembly is used to heat the inside of the cooking cavity; and the control method of the cooking utensil further comprises: determining a temperature adjustment value according to the rotation speed parameter; determining a target heating parameter of the heating assembly according to the first temperature value and the temperature adjustment value; and controlling the heating assembly to operate according to the target heating parameter.

[0078] In this embodiment, the cooking utensil further comprises a temperature detection assembly and a heating assembly, the temperature detection assembly is used to detect a first temperature value in the cooking cavity, and the heating assembly is used to heat the inside of the cooking cavity; and the control method of the cooking utensil further comprises: determining a temperature adjustment value according to the rotation speed parameter; determining a target heating parameter of the heating assembly according to the first temperature value and the temperature adjustment value; and controlling the heating assembly to operate according to the target heating parameter.

[0079] In this embodiment, the cooking utensil further comprises a temperature detection assembly and a heating assembly, the temperature detection assembly is used to detect a first temperature value in the cooking cavity, and the heating assembly is used to heat the inside of the cooking cavity; and the control method of the cooking utensil further comprises: determining a temperature adjustment value according to the rotation speed parameter; determining a target heating parameter of the heating assembly according to the first temperature value and the temperature adjustment value; and controlling the heating assembly to operate according to the target heating parameter.

[0080] The core temperature is greatly affected by the air speed. For example, when the rotation speed parameter of the air supply assembly is 20%, the first temperature value is 150 degrees Celsius, the mapped core temperature value is 180 degrees Celsius, and the actual core temperature is also 180 degrees Celsius. When the rotation speed parameter of the air supply assembly is 80%, the first temperature value is 150 degrees Celsius, the mapped core temperature value is 180 degrees Celsius, but the actual core temperature is 175 degrees Celsius. As described above, the core temperature value needs to be adjusted by a temperature adjustment value. For example, when the rotation speed parameter of the air supply assembly is 80%, the temperature adjustment value is 2 degrees Celsius, the first temperature value is 150 degrees Celsius, the mapped temperature is 180 degrees Celsius, 180 degrees Celsius is subtracted by 2 degrees Celsius, and the final core temperature value is 178 degrees Celsius. The actual core temperature is 178 degrees Celsius, thereby achieving the effect of temperature calibration and improving the accuracy of temperature control. The specific value of the temperature adjustment value needs to be determined according to the volume of the cooking cavity, the power of the heating assembly and the power of the air supply assembly.

[0081] Exemplarily, the heating assembly includes a first heating member, a second heating member and a third heating member. The first heating member is located at the air supply assembly, so that the air supply assembly can deliver hot air into the cooking cavity. The second heating member is arranged at the top of the cooking cavity, and the third heating member is arranged at the bottom of the cooking cavity. The control of the heating assembly can be the control of the first heating member, the second heating member and the third heating member as a whole, or the control of the first heating member.

[0082] Exemplarily, the target heating parameter can be determined by a proportional integral algorithm: PWM = (Ti-Tc) x P2 + (d(Ti-Tc) / dt) x I2, wherein PWM represents the target heating parameter, that is, the duty cycle of the heating assembly, Tc represents the first temperature value, Ti represents the set temperature corresponding to the time point, (d(Ti-Tc) / dt) represents the derivative of (Ti-Tc) with respect to time t, and P2 and I2 are both constants which can be determined by experience or actual measurement.

[0083] In some embodiments, exemplarily, the rotation speed parameter and the temperature adjustment value are proportional.

[0084] In this embodiment, the rotation speed parameter of the air supply assembly and the temperature adjustment value are proportional, that is, the faster the rotation speed of the air supply assembly, the greater the temperature adjustment value, thereby ensuring the accuracy of the temperature control of the cooking cavity and improving the cooking effect of the cooking appliance.

[0085] In some embodiments, the control of the heating assembly according to the target heating parameter includes: determining a heating parameter adjustment value in a unit time according to the target heating parameter and a first heating parameter, wherein the first heating parameter is a current heating parameter of the heating assembly; and controlling the heating assembly to adjust the heating parameter once in each unit time according to the heating parameter adjustment value until the heating parameter equals the target heating parameter.

[0086] In this embodiment, the control of the heating assembly according to the target heating parameter includes: determining a heating parameter adjustment value in a unit time according to the target heating parameter and a first heating parameter, that is, in the process of increasing or decreasing the heating parameter, the heating parameter of the heating assembly is not changed to the corresponding target heating parameter at one time, but is adjusted once in each unit time according to the heating parameter adjustment value until the heating parameter of the heating assembly equals the target heating parameter. The step-by-step adjustment of the heating parameter of the heating assembly can reduce the occurrence of the bright-dark phenomenon of the heating assembly and improve the sensory experience of the cooking appliance.

[0087] In some embodiments, the determination of the heating parameter adjustment value in a unit time according to the target heating parameter and the first heating parameter includes: determining a difference between the target heating parameter and the first heating parameter; and determining the heating parameter adjustment value according to the difference and an adjustment coefficient corresponding to the unit time.

[0088] In this embodiment, the determination of the heating parameter adjustment value in a unit time according to the target heating parameter and the first heating parameter includes: determining a difference between the target heating parameter and the first heating parameter; and multiplying the difference by an adjustment coefficient corresponding to the unit time to obtain the heating parameter adjustment value, which is a single increase amount of the operating parameter of the heating assembly. The first heating parameter and the heating parameter adjustment value are added to obtain the operating parameter of the heating assembly in the next unit time, wherein the adjustment coefficient is less than 1, for example, the adjustment coefficient can be 0.05, 0.1, 0.2, 0.25 or 0.5, etc. The unit time can be set according to the specific situation of cooking.

[0089] For example, the output of the heating parameter can be performed by a 1st order low-pass filter method, that is, the heating parameter of the heating assembly in the next unit time is: current PWM + (target PWM - current PWM) x 10%, and the specific single calculation step can be set to 100 ms to 1 s, wherein the current PWM represents the current heating parameter, the target PWM represents the first heating parameter, and (target PWM - current PWM) x 10% represents the heating parameter adjustment value.

[0090] FIG. 2 shows a flowchart of a second control method of a cooking appliance according to an embodiment of the present application. As shown in FIG. 2, the control method of the cooking appliance according to an embodiment of the present application includes the following steps:

[0091] Step 202: Determine a target heating parameter of the heating assembly.

[0092] For example, according to the first temperature value and the temperature adjustment value, the target heating parameter to which the heating assembly needs to run is determined.

[0093] Step 204: According to the target heating parameter and the first heating parameter of the heating assembly, determine a heating parameter difference of the heating parameter of the heating assembly.

[0094] For example, the first heating parameter of the heating assembly is queried, and the heating parameter difference of the heating parameter of the heating assembly is calculated according to the target heating parameter and the first heating parameter.

[0095] Step 206: According to the heating parameter difference, determine a heating parameter adjustment value of the heating parameter per unit time.

[0096] For example, after the heating parameter difference is calculated, the heating parameter adjustment value of the heating parameter of the heating assembly per unit time is determined by using the heating parameter difference.

[0097] Step 208: According to the heating parameter adjustment value, control the heating assembly to adjust the heating parameter once per unit time until the heating parameter of the heating assembly reaches the target heating parameter.

[0098] For example, the heating assembly is controlled to adjust the heating parameter once per unit time according to the heating parameter adjustment value until the heating parameter of the heating assembly reaches the target heating parameter.

[0099] The control method of the cooking appliance according to the present application is executed by the cooking appliance, and the cooking appliance includes a heating assembly, and the heating assembly is used to heat food materials.

[0100] The control method of the cooking appliance comprises: determining a target heating parameter to which the heating assembly needs to be adjusted, determining a heating parameter difference of the heating parameter of the heating assembly according to the target heating parameter and a first heating parameter of the heating assembly, that is, the difference between the target heating parameter and the first heating parameter, obtaining the heating parameter difference, determining a heating parameter adjustment value of the heating parameter per unit time according to the heating parameter difference, and controlling the heating assembly to adjust the heating parameter once per unit time according to the heating parameter adjustment value until the heating parameter of the heating assembly reaches the target heating parameter, that is, in the process of increasing or decreasing the heating parameter, the heating parameter is not changed to the corresponding heating parameter at one time, but is adjusted once per unit time according to the heating parameter adjustment value until the heating parameter of the heating assembly is equal to the target heating parameter, so that the heating parameter of the heating assembly is adjusted step by step, so that the power of the heating assembly does not change suddenly but changes gradually, thereby reducing the possibility of the heating assembly appearing bright and dark, and making the cooking appliance have better visual perception in the cooking process.

[0101] In some embodiments, the temperature adjustment value is determined according to the rotation speed parameter, including: obtaining the rotation speed parameter of the air supply assembly; determining a compensation value of the first temperature value according to the rotation speed parameter; determining a core temperature value according to the first temperature value and the compensation value; and determining the temperature adjustment value according to the target temperature value and the core temperature value, wherein the target temperature value is a temperature value that the cooking appliance is expected to reach.

[0102] In this embodiment, the temperature adjustment value is determined according to the rotation speed parameter, including: obtaining the rotation speed parameter of the air supply assembly, and determining a compensation value of the first temperature value according to the rotation speed parameter. Since the airflow flow in the cooking cavity will affect the temperature in the cooking cavity, the compensation value needs to be determined according to the rotation speed parameter of the air supply assembly, and the first temperature value is compensated by the compensation value, and then the core temperature value is determined, thereby improving the accuracy of the core temperature value.

[0103] In some embodiments, the core temperature value is determined according to the first temperature value and the compensation value, including: summing the first temperature value and the compensation value to obtain a second temperature value; and determining the core temperature value by the second temperature value and a preset mapping relationship.

[0104] In this embodiment, since the faster the hot air speed is, the lower the temperature attenuation is, the core temperature value is determined according to the first temperature value and the compensation value, including: summing the first temperature value and the compensation value to obtain a compensated second temperature value, and calculating the core temperature value by the second temperature value, that is, determining the core temperature value by the second temperature value and a preset mapping relationship, thereby improving the accuracy of the core temperature value.

[0105] Exemplarily, since the food material is usually placed at the center position of the cooking cavity, when the heating assembly is controlled, the temperature at the center position of the cooking cavity, that is, the core temperature value, is usually based on, but since the temperature detection assembly cannot be arranged at the center position of the cooking cavity, the temperature detection assembly is arranged at a corner or a side wall of the cooking cavity to detect a first temperature value in the cooking cavity, and then the core temperature value is obtained through the mapping relationship between the position and the center position, for example, if the first temperature value is 150 degrees Celsius, the mapped core temperature value is 180 degrees Celsius.

[0106] The core temperature value is greatly affected by the air speed, for example, in the case that the air supply speed of the air supply assembly is 20%, the first temperature is 150 degrees Celsius, the mapped second temperature is 180 degrees Celsius, and the actual core temperature value is also 180 degrees Celsius, in the case that the air supply speed of the air supply assembly is 80%, the first temperature value is 150 degrees Celsius, the mapped core temperature value is 180 degrees Celsius, but the actual core temperature value is 185 degrees Celsius. As described above, the core temperature value needs to be adjusted by the compensation value, for example, in the case that the air supply speed of the air supply assembly is 80%, the compensation value is 2 degrees Celsius, the first temperature is 148 degrees Celsius, and after being combined with the compensation value, the first temperature is 150 degrees Celsius, the mapped core temperature value is 180 degrees Celsius, and the actual core temperature value is also 180 degrees Celsius, so that the temperature calibration effect is achieved, and the accuracy of temperature control is improved.

[0107] The specific value of the compensation value needs to be determined according to the volume of the cooking cavity, the power of the heating assembly and the power of the air supply assembly.

[0108] In some embodiments, exemplarily, the speed parameter and the compensation value are proportional.

[0109] In this embodiment, the faster the air speed of the hot air, the lower the temperature attenuation, the greater the temperature difference between the core temperature value and the first temperature value, and the speed parameter and the compensation value are proportional, so that the core temperature value can be accurately obtained under various air speeds.

[0110] FIG. 3 shows a flowchart of a control method of a cooking appliance according to an embodiment of the present application. As shown in FIG. 3, the control method of the cooking appliance according to an embodiment of the present application includes the following steps:

[0111] Step 302: receiving a cooking target set by a user.

[0112] Exemplarily, the user can set the cooking target according to the taste he wants, for example, the taste, doneness or color of the food material, etc.

[0113] Step 304: Start cooking, the shooting component shoots the image of the food material, identifies the type and weight of the food material according to the image, sets the estimated cooking time, and collects the color information Sc of the food material.

[0114] Illustratively, after starting cooking, the shooting component shoots the image, so that the image of the food material can be identified to determine the type and weight of the food material, and then the estimated cooking time is set according to the type and weight of the food material, and the color information Sc of the current food material is collected in real time.

[0115] Step 306: In the cloud database, all second color thresholds Si of various food materials in the entire cooking process are stored, and the second color threshold Si corresponding to a certain time point is issued when the cooking is performed to the time point.

[0116] Illustratively, in the cloud database, each type of food material corresponds to a preset second color threshold Si in the entire cooking stage, and the second color threshold Si corresponding to the cooking stage is issued when the cooking is performed to the cooking stage, that is, the color information that the food material should reach in the cooking stage.

[0117] Step 308: According to the current Sc and Si, the speed parameter Flow is obtained by the PID calculation method, and the color information of the food material in the entire cooking process is adjusted by adjusting the speed parameter of the air supply component. If the speed parameter of the air supply component is adjusted to 0 or below, it means that the current color information is too high, and then a small amount of steam can be appropriately supplemented.

[0118] Illustratively, according to the real-time Sc and Si, the speed parameter Flow is obtained by the PID calculation method, and the color parameter of the food material in the entire cooking process is adjusted by adjusting the speed of the air supply component. If the speed parameter is adjusted to 0 or below, it proves that the color parameter is too high, and then a small amount of steam can be appropriately supplemented, preferably without affecting the picture collection of the shooting component.

[0119] Step 310: Flow=(Si-Sc)×P1+(d(Si-Sc) / dt)×I1, P1 and I1 are constants, respectively, if Sc in cooking is higher than the first color threshold, the lowest steam auxiliary is started, and the air supply component is turned to the smallest gear (10%).

[0120] Illustratively, Flow is calculated according to Flow=(Si-Sc)×P1+(d(Si-Sc) / dt)×I1, wherein Flow represents the speed parameter, the range of Flow is [0, 100], Sc represents the collected color information, Si represents the second color threshold of the time point corresponding to Sc, (d(Si-Sc) / dt) represents the derivative of (Si-Sc) with respect to time t, P1 and I1 are both constants, which can be determined by experience or actual measurement.

[0121] And, in the case that Sc has been higher than the first color threshold, then start the lowest steam assist, and open the air supply assembly to the minimum position (10%).

[0122] Step 312: control the operation of the air supply assembly according to Flow.

[0123] Exemplarily, the operation of the air supply assembly is controlled according to the duty ratio of Flow.

[0124] Step 314: the temperature detection assembly detects the first temperature value Tc in the cooking cavity.

[0125] Exemplarily, the temperature detection assembly detects the first temperature value Tc in the current cooking cavity.

[0126] Step 316: determine the current first temperature value Tc and the set temperature Ti, the rotational speed of the air supply assembly will affect the mapping relationship between the first temperature value Tc and the core temperature value, and the temperature adjustment value of the first temperature value Tc and the core temperature value needs to be determined before determining the target heating parameter PWM of the heating assembly.

[0127] Exemplarily, the set temperature Ti corresponds to the current temperature, according to the real-time first temperature value Tc and the set temperature Ti, the rotational speed of the air supply assembly will affect the mapping value of the first temperature value Tc, and the air supply assembly and temperature mapping relationship need to be decoupled before calculating the PWM of graphene through PID.

[0128] Step 318: PWM=(Ti-Tc)×P2+(d(Ti-Tc) / dt)×I2, P2 and I2 are constants respectively, in order to avoid the visual sense of the heating assembly appearing on and off, the output is carried out through the method of 1st order low-pass filter: current PWM+(target PWM-current PWM)×10%, the specific single calculation step can be set to 100ms to 1s.

[0129] Exemplarily, PWM is calculated according to PWM=(Ti-Tc)×P2+(d(Ti-Tc) / dt)×I2, PWM represents the heating parameter, that is, the duty ratio of the heating assembly, Tc represents the first temperature value, Ti represents the set temperature corresponding to the time point, (d(Ti-Tc) / dt) represents the derivative of (Ti-Tc) with respect to time t, P2 and I2 are both constants, which can be determined through experience or actual measurement.

[0130] The PWM range is [0, 100], to avoid the visual sense of the heating assembly appearing on and off, the output is processed by a first-order low-pass filter method, and the specific calculation rule is: current PWM + (target PWM - current PWM) * 10%, and the specific single calculation step can be set to 100ms to 1s, wherein the current PWM represents the current heating parameter, the target PWM represents the first heating parameter, and (target PWM - current PWM) * 10% represents the heating parameter adjustment value.

[0131] Step 320: controlling the heating assembly to operate according to the PWM.

[0132] Exemplarily, the heating assembly is controlled according to the PWM.

[0133] The application can determine the doneness of the food material by identifying the color information of the cooking in real time, so as to achieve the target cooking effect by dynamically adjusting the air supply assembly, and form a closed loop by adjusting the steam and the air speed. In addition, the air speed will affect the mapping of the furnace core temperature and the first temperature value, and the mapping of the furnace core temperature and the first temperature value needs to be compensated by the temperature adjustment value.

[0134] Exemplarily, the application realizes stepless adjustment of the air supply assembly and stepless adjustment of the heating assembly according to the real-time image obtained by image recognition and the preset image, which can improve the heating effect of the cooking utensil.

[0135] Exemplarily, when the user wants to cook a 450g steak, the color information is set to 0.8, the initial color information recognized by the shooting assembly is 0.1, the second color threshold set in real time is determined from the cloud database, and the color information reaches 0.6 in the first 5 minutes. Through real-time calculation, the duty ratio of the air supply assembly will be opened to 90%, and the air speed will be maintained at 90%. When the air speed is opened to 90%, the compensation value is 2 degrees Celsius, that is, when calculating the furnace core temperature value, the first temperature value is reduced by 2 degrees Celsius by default. The steak needs a furnace core temperature value of 230 degrees Celsius. When the air speed is low, the first temperature value corresponding to the furnace core temperature value of 230 degrees Celsius is 225 degrees Celsius. When the air speed is opened to 90%, the first temperature value corresponding to the furnace core temperature value of 230 degrees Celsius is 223 degrees Celsius, and the PWM of the heating assembly is reduced to 20%. When the cooking is performed to 4min30s, the color information of the steak reaches 0.7, the air supply assembly will reduce the air speed to 10%, and at the same time, the minimum steam amount is opened. When the furnace core temperature value is 230 degrees Celsius, the first temperature value corresponding thereto is 226 degrees Celsius.

[0136] The above methods can be implemented in various ways depending on the particular specifications and / or example applications. For example, these methods can be implemented by a combination of hardware, firmware, and / or software. For example, in a hardware implementation, the processors can be implemented within one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, electronic devices, other devices units for performing the above-described functions, and / or a combination thereof.

[0137] As shown in FIG. 4, according to the second aspect of the present application, the present application provides a control device 400 of a cooking appliance, the cooking appliance having a cooking cavity, the cooking appliance comprising a shooting assembly and an air supply assembly, the shooting assembly being configured to shoot an image of food materials in the cooking cavity, and the air supply assembly being configured to supply air to the cooking cavity; the control device of the cooking appliance comprises: an acquisition module 402 configured to acquire the image of the food materials; a first determination module 404 configured to determine color information of the food materials according to the image; a second determination module 406 configured to determine a rotation speed parameter of the air supply assembly according to the color information; and a first control module 408 configured to control the air supply assembly to operate according to the rotation speed parameter.

[0138] The control device of the cooking appliance provided by the present application belongs to the cooking appliance, the cooking appliance comprising a shooting assembly and an air supply assembly, the cooking appliance having a cooking cavity, the shooting assembly being configured to shoot an image of food materials in the cooking cavity, and the air supply assembly being configured to supply air to the cooking cavity; when the cooking appliance is cooking, the food materials are placed in the cooking cavity, and the air supply assembly supplies air to the cooking cavity to achieve a cooking effect.

[0139] The control device of the cooking appliance comprises: acquiring the image of the food materials by the shooting assembly, analyzing the image of the food materials in the image to determine the color information of the food materials, determining the rotation speed parameter of the air supply assembly according to the color information of the food materials, and then controlling the air supply assembly to operate according to the rotation speed information of the air supply assembly to realize dynamic adjustment of the cooking process; wherein the color information of the food materials can reflect the maturity of the surface layer of the food materials to a certain extent, and therefore, dynamic adjustment of the rotation speed of the air supply assembly according to the color information of the food materials can reduce the possibility of overcooking or overburning of the food materials and improve the cooking effect of the cooking appliance.

[0140] In some embodiments, the cooking appliance further includes a steam generation assembly configured to deliver steam to the cooking cavity; the second determining module includes: a first determining submodule configured to determine the rotation speed parameter according to the color information and a second color threshold value, if the color information does not exceed a first color threshold value; and a second determining submodule configured to determine the rotation speed parameter as a target rotation speed parameter and control the steam generation assembly to be turned on, if the color information exceeds the first color threshold value; wherein the second color threshold value is less than or equal to the first color threshold value.

[0141] In some embodiments, the first determining submodule includes: a first calculation unit configured to increase the rotation speed parameter to a first rotation speed parameter by a proportional algorithm, if the color information exceeds a second color threshold value, if the color information does not exceed the first color threshold value; and a second calculation unit configured to decrease the rotation speed parameter to a second rotation speed parameter by the proportional algorithm, if the color information does not exceed the second color threshold value.

[0142] In some embodiments, the cooking appliance further includes: a third determining module configured to determine a type and a weight of the food material according to the image; and a fourth determining module configured to determine the first color threshold value and the second color threshold value according to the type, the weight, and a cooking target set by a user.

[0143] In some embodiments, the cooking appliance further includes a steam generation assembly configured to deliver steam to the cooking cavity; the control device of the cooking appliance further includes: a second control module configured to control the steam generation assembly to be turned on, if the rotation speed parameter is less than or equal to 0.

[0144] As shown in FIG. 5, in some embodiments, the cooking appliance further includes a temperature detection assembly configured to detect a first temperature value in the cooking cavity, and a heating assembly configured to heat an inside of the cooking cavity; the control device 500 of the cooking appliance further includes: a fifth determining module 502 configured to determine a temperature adjustment value according to the rotation speed parameter; a sixth determining module 504 configured to determine a target heating parameter of the heating assembly according to the first temperature value and the temperature adjustment value; and a third control module 506 configured to control the heating assembly to operate according to the target heating parameter.

[0145] In some embodiments, the rotation speed parameter and the temperature adjustment value are in direct proportion.

[0146] As shown in FIG. 5, in some embodiments, the third control module 506 includes: a third determination submodule 508, configured to determine a heating parameter adjustment value in a unit time according to the target heating parameter and a first heating parameter, wherein the first heating parameter is a current heating parameter of the heating assembly; and a control submodule 510, configured to control the heating assembly to adjust the heating parameter once in each unit time according to the heating parameter adjustment value, until the heating parameter is equal to the target heating parameter.

[0147] In some embodiments, the fifth determination module includes: an acquisition submodule, configured to acquire a rotating speed parameter of the air supply assembly; a fourth determination submodule, configured to determine a compensation value of the first temperature value according to the rotating speed parameter; a fifth determination submodule, configured to determine a core temperature value according to the first temperature value and the compensation value; and a sixth determination submodule, configured to determine a temperature adjustment value according to a target temperature value and the core temperature value, wherein the target temperature value is a temperature value that the cooking appliance is expected to reach.

[0148] In some embodiments, the fifth determination submodule includes: a third calculation unit, configured to add the first temperature value and the compensation value to obtain a second temperature value; and a determination unit, configured to determine the core temperature value through the second temperature value and a preset mapping relationship.

[0149] In some embodiments, the rotating speed parameter and the compensation value are in direct proportion.

[0150] As shown in FIG. 6, according to the third aspect of the present application, the present application provides an electronic device 600, including a processor 602 and a memory 604, the memory 604 stores programs or instructions executable on the processor 602, and the programs or instructions are executed by the processor 602 to implement the steps of the control method of the cooking appliance provided in the embodiments of the first aspect.

[0151] The electronic device provided in the present application includes the memory storing the programs or instructions executable by the processor to implement the steps of the control method of the cooking appliance provided in the embodiments of the first aspect, and therefore has all the beneficial effects of the control method of the cooking appliance provided in the embodiments of the first aspect, which will not be repeated here.

[0152] According to the fourth aspect of the present application, the present application provides a storage medium, and the storage medium stores programs or instructions executable by the processor to implement the steps of the control method of the cooking appliance provided in the embodiments of the first aspect. The storage medium can be a readable storage medium.

[0153] The storage medium provided in the application has all the beneficial effects of the control method of the cooking appliance provided in the first aspect, which will not be repeated here.

[0154] The storage medium can be a tangible device that can retain and store instructions for use by an instruction execution device. The computer storage medium can be an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any appropriate combination of the above devices, but is not limited to this. A non-exhaustive list of more specific examples of computer storage media includes a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital video disc (DVD), a memory card, a floppy disk, an encoded mechanical device (such as a punch card or a groove with protruding structures recording instructions), and any appropriate combination of the above devices. The computer storage medium used herein should not be understood as a transmission signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium, or an electrical signal transmitted through a wire, etc.

[0155] As shown in FIGS. 7, 8 and 9, according to the fifth aspect of the application, the application provides a cooking appliance, comprising: the control device of the cooking appliance provided in the second aspect; or the electronic device provided in the third aspect; or the storage medium provided in the fourth aspect.

[0156] The cooking appliance provided in the application has all the beneficial effects of the control device of the cooking appliance provided in the second aspect, the electronic device provided in the third aspect, or the storage medium provided in the fourth aspect, which will not be repeated here.

[0157] As shown in FIGS. 7, 8 and 9, in some embodiments, the cooking appliance 700 further includes a main body 702, the cooking cavity 710 of the cooking appliance 700 is located inside the main body 702, the air supply assembly 730 and the heating assembly 760 of the cooking appliance 700 are arranged on the main body 702 and located at the back side of the cooking cavity 710, which is the side opposite to the opening of the cooking cavity 710.

[0158] In this embodiment, the cooking appliance 700 further includes a main body 702, the cooking cavity 710 is located inside the main body 702, and the air supply assembly 730 and the heating assembly 760 of the cooking appliance 700 are arranged on the main body 702 and located at the back side of the cooking cavity 710, i.e., the side away from the door of the cooking cavity 710, so that the temperature inside the cooking cavity 710 is more uniform.

[0159] In this embodiment, the cooking appliance 700 further includes a main body 702 and a door, the cooking cavity 710 of the cooking appliance 700 is located inside the main body 702, the door is arranged on the main body 702 in a hinged manner and is used to close the cooking cavity 710, and the air supply assembly 730 and the heating assembly 760 of the cooking appliance 700 are arranged on the main body 702 and located at the side of the cooking cavity 710 away from the door.

[0160] In this embodiment, the cooking appliance 700 further includes a main body 702 and a door, the cooking cavity 710 of the cooking appliance 700 is located inside the main body 702, the door is arranged on the main body 702 in a hinged manner and is used to close the cooking cavity 710, and the air supply assembly 730 and the heating assembly 760 of the cooking appliance 700 are arranged on the main body 702 and located at the side of the cooking cavity 710 away from the door, so that the temperature inside the cooking cavity 710 is more uniform.

[0161] As shown in FIG. 7, the cooking appliance 700 has a cooking cavity 710 in which food materials can be placed, and the cooking appliance 700 includes a main body 702, a shooting assembly 720, an air supply assembly 730, a steam generation assembly 740, a temperature detection assembly 750, a heating assembly 760 and a first control assembly 770, the shooting assembly 720, the air supply assembly 730, the steam generation assembly 740, the temperature detection assembly 750, the heating assembly 760 and the first control assembly 770 are arranged on the main body 702, and the first control assembly 770 is electrically connected with the shooting assembly 720, the air supply assembly 730, the steam generation assembly 740, the temperature detection assembly 750 and the heating assembly 760 to control the shooting assembly 720, the air supply assembly 730, the steam generation assembly 740, the temperature detection assembly 750 and the heating assembly 760.

[0162] The photographing assembly 720 is configured to photograph an image in the cooking cavity 710. After food is placed in the cooking cavity 710, the photographing assembly 720 can photograph an image of the food. The air supply assembly 730 can supply air into the cooking cavity 710. The air supplied by the air supply assembly 730 into the cooking cavity 710 can be hot air. The steam generation assembly 740 can supply steam into the cooking cavity 710. The temperature detection assembly 750 can detect a first temperature value in the cooking cavity 710. Since the temperature at different positions in the cooking cavity 710 is different, the first temperature value needs to be mapped to a core temperature value of the food position to improve the accuracy of temperature control. The heating assembly 760 can heat the inside of the cooking cavity 710.

[0163] The air supply assembly 730 includes a driving member 732, an impeller 734, and a cover 736. The impeller 734 is arranged on the driving member 732, and the cover 736 covers the impeller 734. The driving member 732 can drive the impeller 734 to rotate, so as to supply air into the cooking cavity 710 through a through hole in the cover 736.

[0164] The heating assembly 760 includes a first heating member 762, a second heating member 764, and a third heating member 766. The first heating member 762 is arranged at the impeller 734, so that the air supply assembly 730 can supply hot air into the cooking cavity 710. The control of the heating assembly 760 can be the control of the first heating member 762, or the simultaneous control of the first heating member 762, the second heating member 764, and the third heating member 766. The second heating member 764 is arranged at the top of the cooking cavity 710, and the third heating member 766 is arranged at the bottom of the cooking cavity 710.

[0165] The temperature detection assembly 750 can be a negative temperature coefficient (NTC) or other components.

[0166] In some embodiments, the heating assembly 760 is a graphene heating tube.

[0167] In this embodiment, the heating assembly 760 is a graphene heating tube, so as to improve the heating effect and reduce energy consumption.

[0168] The graphene heating tube arranged at the back and the ordinary metal heating tube are different in that the graphene heating tube has fast heating and high thermal efficiency. The graphene heating tube is directly opposite to the user's visual angle at the back, and frequent switching of power needs to be reduced. The switching of power can make the graphene heating tube bright and dark obviously. In combination with the target heating parameter adjustment mode of the present application, the phenomenon of the graphene heating tube being bright and dark can be reduced.

[0169] As shown in FIG. 11, the heating efficiency of the graphene heating tube is greater than that of the ordinary metal heating tube. For example, when the temperature rises from 25℃ to 100℃, the graphene heating tube only needs 2 minutes, while the ordinary metal heating tube needs 3 minutes and 40 seconds.

[0170] As shown in FIG. 10, in some embodiments, the cooking utensil 700 further comprises a first control component 770 and a second control component 780, the second control component 780 and the first control component 770 are electrically connected, and the second control component 780 is configured to control the working of the heating component 760. The first control component 770 is configured to output a signal to the second control component 780 to realize the control of the second control component 780 on the working of the heating component 760.

[0171] In this embodiment, the cooking utensil 700 further comprises a first control component 770 and a second control component 780, the second control component 780 and the first control component 770 are electrically connected, and the second control component 780 is configured to control the working of the heating component 760. The first control component 770 is configured to output a signal to the second control component 780 to realize the control of the second control component 780 on the working of the heating component 760, so as to realize the intelligent control of the heating component 760.

[0172] In this embodiment, the first control component 770 can be a power board.

[0173] As shown in FIG. 10, in some embodiments, the second control component 780 comprises a relay 782 and a duty cycle controller 784, the relay 782 and the first control component 770 are electrically connected, and the duty cycle controller 784 and the relay 782 and the first control component 770 are electrically connected. The first control component 770 is configured to output an opening signal to the relay 782 and output a duty cycle signal to the duty cycle controller 784.

[0174] In this embodiment, the second control component 780 comprises a relay 782 and a duty cycle controller 784, the duty cycle controller 784 is configured to control the duty cycle of the heating component 760, that is, the target heating parameter. The first control component 770 is configured to output an opening signal to the relay 782 and output a duty cycle signal to the duty cycle controller 784. The relay 782 is configured to control whether the duty cycle controller 784 is started, so as to improve the safety of the cooking utensil 700.

[0175] The first control component 770 calculates the PWM signal and the wind speed signal according to the actual parameters in the cooking cavity 710. If the PWM signal is greater than 0, it indicates that the relay 782 needs to be opened. The PWM signal is sent to the duty cycle controller 784. The duty cycle controller 784 adjusts the power of the heating component 760 to the required heating power according to the required duty cycle.

[0176] The duty cycle controller 784 can be a graphene inverter (GID) module.

[0177] In other embodiments of the present application, the relay 782 can also be cancelled.

[0178] As shown in FIG. 10, in some embodiments, the cooking appliance 700 also includes a wind speed controller 790 for controlling the air supply assembly 730 according to the wind speed signal sent by the first control assembly 770. The cooking appliance 700 also includes a fan relay 782 to control whether the wind speed controller 790 is turned on.

[0179] The present application provides a graphene heating tube, and the wind speed of the air supply assembly 730 is adjustable, which can be adjusted by the rotation speed or by forward and reverse rotation.

[0180] As shown in FIG. 7, the cooking appliance 700 has a cooking cavity 710 in which food materials can be placed, and includes a main body 702, a shooting assembly 720, an air supply assembly 730, a steam generation assembly 740, a temperature detection assembly 750, a heating assembly 760, and a first control assembly 770, etc. The shooting assembly 720, the air supply assembly 730, the steam generation assembly 740, the temperature detection assembly 750, the heating assembly 760, and the first control assembly 770 are arranged on the main body 702, and the first control assembly 770 is electrically connected with the shooting assembly 720, the air supply assembly 730, the steam generation assembly 740, the temperature detection assembly 750, and the heating assembly 760 to control the shooting assembly 720, the air supply assembly 730, the steam generation assembly 740, the temperature detection assembly 750, and the heating assembly 760.

[0181] The shooting assembly 720 is used to shoot images in the cooking cavity 710. After the food materials are placed in the cooking cavity 710, the shooting assembly 720 can shoot images of the food materials, the air supply assembly 730 can supply air to the cooking cavity 710, the air supplied by the air supply assembly 730 to the cooking cavity 710 can be hot air, the steam generation assembly 740 can supply steam to the cooking cavity 710, the temperature detection assembly 750 can detect a first temperature value in the cooking cavity 710, since the temperatures at different positions in the cooking cavity 710 are different, the first temperature value needs to be mapped to a core temperature value of the food material position to improve the accuracy of temperature control, and the heating assembly 760 can heat the inside of the cooking cavity 710.

[0182] The air supply assembly 730 comprises a driving member 732, an impeller 734 and a cover 736. The impeller 734 is arranged on the driving member 732, and the cover 736 covers the impeller 734. The driving member 732 can drive the impeller 734 to rotate, so as to supply air into the cooking cavity 710 through the through hole of the cover 736.

[0183] In the present application, the terms "first", "second", "third" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0184] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the components or units referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the present application.

[0185] In the description of the present application, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0186] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A control method of a cooking appliance, wherein, The cooking appliance has a cooking cavity, and comprises a photographing assembly and an air supply assembly, the photographing assembly being configured to photograph an image of food materials in the cooking cavity, and the air supply assembly being configured to supply air to the cooking cavity; The control method of the cooking appliance comprises: obtaining the image of the food materials; determining color information of the food materials according to the image; determining a rotation speed parameter of the air supply assembly according to the color information; controlling the air supply assembly to operate according to the rotation speed parameter. 2.The control method of a cooking appliance according to claim 1, wherein, The cooking appliance further comprises a steam generation assembly configured to deliver steam to the cooking cavity; and determining the rotation speed parameter of the air supply assembly according to the color information comprises: in a case where the color information does not exceed a first color threshold, determining the rotation speed parameter according to the color information and a second color threshold; in a case where the color information exceeds the first color threshold, determining the rotation speed parameter as a target rotation speed parameter and controlling the steam generation assembly to start; wherein the second color threshold is less than or equal to the first color threshold. 3.The control method of a cooking appliance according to claim 2, wherein, In a case where the color information does not exceed a first color threshold, determining the rotation speed parameter according to the color information and a second color threshold comprises: in a case where the color information does not exceed a first color threshold, if the color information exceeds the second color threshold, increasing the rotation speed parameter to a first rotation speed parameter by a proportional algorithm; if the color information does not exceed the second color threshold, decreasing the rotation speed parameter to a second rotation speed parameter by a proportional algorithm. 4.The control method of a cooking appliance according to claim 2, wherein, Before determining the color information of the food materials according to the image, the control method of the cooking appliance further comprises: determining a type and a weight of the food materials according to the image; determining the first color threshold and the second color threshold according to the type, the weight and a cooking target set by a user. 5.The control method of a cooking appliance according to claim 1, wherein, The cooking appliance further comprises a steam generation assembly configured to deliver steam to the cooking cavity; and the control method of the cooking appliance further comprises: in a case where the rotation speed parameter is less than or equal to 0, controlling the steam generation assembly to start. 6.The control method of a cooking appliance according to any one of claims 1 to 5, wherein, The cooking appliance further comprises a temperature detection assembly configured to detect a first temperature value in the cooking cavity and a heating assembly configured to heat an inside of the cooking cavity; The control method of the cooking appliance further comprises: determining a temperature adjustment value according to the rotation speed parameter; determining a target heating parameter of the heating assembly according to the first temperature value and the temperature adjustment value; controlling the heating assembly to operate according to the target heating parameter. 7.The control method of a cooking appliance according to claim 6, wherein, Controlling the heating assembly to operate according to the target heating parameter comprises: determining a heating parameter adjustment value in a unit time according to the target heating parameter and a first heating parameter, wherein the first heating parameter is a current heating parameter of the heating assembly; controlling the heating assembly to adjust the heating parameter of the heating assembly once in each unit time according to the heating parameter adjustment value until the heating parameter is equal to the target heating parameter. 8.The control method of a cooking appliance according to claim 7, wherein, According to the target heating parameter and the first heating parameter, a heating parameter adjustment value in a unit time is determined, including: determining a difference value of the target heating parameter and the first heating parameter; determining the heating parameter adjustment value according to the difference value and an adjustment coefficient corresponding to the unit time. 9.The control method of a cooking appliance according to claim 6, wherein, According to the rotation speed parameter, a temperature adjustment value is determined, including: obtaining a rotation speed parameter of the air supply assembly; determining a compensation value of the first temperature value according to the rotation speed parameter; determining a core temperature value according to the first temperature value and the compensation value; determining the temperature adjustment value according to a target temperature value and the core temperature value, wherein the target temperature value is a temperature value that the cooking appliance is expected to reach. 10.The control method of a cooking appliance according to claim 9, wherein, determining the core temperature value according to the first temperature value and the compensation value, including: adding the first temperature value and the compensation value to obtain a second temperature value; determining the core temperature value through the second temperature value and a preset mapping relationship.

11. The control method of the cooking appliance according to claim 9, wherein: the rotation speed parameter and the compensation value are directly proportional.

12. A control device of a cooking appliance, wherein, The cooking appliance has a cooking cavity, and the cooking appliance includes a shooting assembly and an air supply assembly, the shooting assembly is used to shoot an image of food material in the cooking cavity, and the air supply assembly is used to supply air to the cooking cavity. The control device of the cooking appliance includes: an obtaining module, configured to obtain the image of the food material; a first determining module, configured to determine color information of the food material according to the image; a second determining module, configured to determine a rotation speed parameter of the air supply assembly according to the color information; a first control module, configured to control the air supply assembly to operate according to the rotation speed parameter.

13. An electronic device, comprising: A processor and a memory, the memory stores programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the control method of the cooking appliance according to any one of claims 1 to 11.

14. A storage medium, wherein, The storage medium stores programs or instructions, and the programs or instructions are executed by the processor to implement the steps of the control method of the cooking appliance according to any one of claims 1 to 11.

15. A cooking appliance, wherein, including: the control device of the cooking appliance according to claim 12; or the electronic device according to claim 13; or the storage medium according to claim 14. The cooking appliance further includes:

16. The cooking appliance of claim 15, wherein, a main body, and a cooking cavity of the cooking appliance is located in the main body; wherein the air supply assembly and the heating assembly of the cooking appliance are arranged on the main body and located at the back side of the cooking cavity.

17. The cooking appliance according to claim 16, wherein: the heating assembly is a graphene heating tube. Further including:

18. The cooking appliance of claim 16, wherein, a first control assembly; a second control assembly, electrically connected with the first control assembly, configured to control the heating assembly to work; wherein the first control assembly is configured to output a signal to the second control assembly to realize the control of the heating assembly by the second control assembly. The second control assembly includes:

19. The cooking appliance of claim 18, wherein, a relay, electrically connected with the first control assembly; a duty cycle controller, electrically connected with the relay and the first control assembly. ​ The first control component is configured to output an opening signal to the relay and output a duty cycle signal to the duty cycle controller. The first control component is configured to output an opening signal to the relay and output a duty cycle signal to the duty cycle controller.

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