Cooking control method and device for cooking appliance, cooking appliance, and storage medium

Abstract

The present invention discloses a cooking control method and device for a cooking appliance, a cooking appliance, and a storage medium. The method comprises: controlling the cooking appliance to heat in a preset first heating mode during the rice soaking stage of a cooking program, so that the upper temperature of the rice-water mixture in the cooking appliance is higher than the lower temperature, with the first heating mode primarily focusing on side heating; determining whether the side heating function of the cooking appliance is abnormal during the rice soaking stage based on temperature changes at the top and bottom of the cooking appliance's inner cavity during the heating process; and if the side heating function of the cooking appliance is abnormal during the rice soaking stage, switching the first heating mode to a preset second heating mode, canceling the side heating in the second heating mode and focusing on heating the corner areas. The present invention can promptly adjust the control program when the side heating function is abnormal, reduce moisture deviation in the rice, and ensure uniform water absorption in the rice, thereby ensuring a good cooking effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and in particular relates to a cooking control method and device for a cooking appliance, the cooking appliance, and a storage medium. Background Art

[0002] Rice moisture deviation is an important indicator for measuring the consistency of the cooking effect of an entire pot of rice, and it can indirectly represent the consistency of the rice's taste. During the cooking process, the main stages that affect the final moisture deviation of the rice are the soaking and heating stages. Keeping the temperature of the upper layer of rice water higher than that of the lower layer of rice water during the soaking and heating stages is conducive to achieving a better rice moisture deviation. To achieve the above cooking effects, two or more separately controlled coil disks are required for heating. To save costs, the existing technology uses relays combined with IGBTs to control the switching of two electromagnetic coils to achieve segmented heating.

[0003] In the process of implementing the present invention, the inventors found that the existing method of implementing segmented heating has at least the following problems: if an abnormality occurs in the relay during the cooking process and the coil cannot be switched, the cooking appliance continues to cook according to the original procedure, resulting in an increase in the moisture deviation of the rice and uneven water absorption, which affects the cooking effect of the rice. Summary of the Invention

[0004] The present invention provides a cooking control method and device for a cooking appliance, a cooking appliance, and a storage medium to solve the technical problem in existing segmented heating methods that, when a relay malfunctions during cooking, the cooking appliance continues cooking according to the original program, resulting in an increased moisture deviation in rice and affecting the cooking effect of the rice.

[0005] To achieve the above-mentioned objectives, the specific technical solutions of the cooking control method and device, cooking appliance, and storage medium of the present invention are as follows:

[0006] In a first aspect, the present invention provides a cooking control method for a cooking appliance, the method comprising:

[0007] During the heating process of the rice soaking stage, judging whether the side heating function of the cooking appliance is abnormal according to the temperature changes of the top temperature and the bottom temperature of the inner cavity of the cooking appliance;

[0008] If the side heating function of the cooking appliance malfunctions during the rice soaking stage, the first heating mode during the rice soaking stage is switched to a preset second heating mode, and heating during the rice soaking stage is continued in the second heating mode until the total heating time during the rice soaking stage reaches the preset first heating time or the lower temperature of the rice-water mixture reaches a preset first temperature threshold. The second heating mode includes heating with a duty ratio of A2:B2:C2:D2, where A2 represents the side heating time, B2 represents the corner heating time, and C2 represents the bottom heating time; and D2 represents the stop time when heating of each area is stopped, wherein A2=0 and B2>C2.

[0009] Furthermore, before determining whether the side heating function of the cooking appliance is abnormal during the rice soaking stage based on the temperature changes of the top temperature and the bottom temperature of the inner cavity of the cooking appliance during the rice soaking stage, the method further includes:

[0010] During the rice soaking stage of the cooking program, the cooking vessel is controlled to heat in a preset first heating mode so that the upper temperature of the rice-water mixture in the cooking vessel is higher than the lower temperature. The first heating mode includes heating in a duty ratio of A1:B1:C1:D1, where A1 represents the side heating time, B1 represents the corner heating time, and C1 represents the bottom heating time; D1 represents the stop time for stopping heating in all areas, wherein A1>C1 and A1>B1.

[0011] Furthermore, when the total heating time of the rice soaking stage reaches a preset first heating time or the temperature of the lower part of the rice-water mixture reaches a preset first temperature threshold, the method further includes:

[0012] Entering the heating stage of the cooking program, the cooking appliance is controlled to heat in a preset third heating mode during the heating stage so that the upper temperature of the rice-water mixture in the cooking appliance is higher than the lower temperature. The third heating mode includes heating with a duty ratio of A3:B3:C3:D3, where A3 represents the side heating time, B3 represents the corner heating time, and C3 represents the bottom heating time; D3 represents the stop time for stopping heating in each area, wherein A3=0 and B3>C3.

[0013] Furthermore, judging whether the side heating function of the cooking appliance is abnormal during the rice soaking stage based on the temperature changes of the top temperature and the bottom temperature of the inner cavity of the cooking appliance includes:

[0014] When the heating time of the rice soaking stage reaches a preset abnormality judgment time, obtaining a first temperature change value of the top temperature and a second temperature change value of the bottom temperature of the inner cavity of the cooking utensil;

[0015] Determining whether a temperature change difference between the first temperature change value and the second temperature change value is greater than or equal to a preset first abnormality threshold;

[0016] If the temperature change difference is greater than or equal to a preset first abnormality threshold, it is determined that the side heating function of the cooking appliance is abnormal during the rice soaking stage.

[0017] Furthermore, the method further comprises:

[0018] If the side heating function of the cooking appliance does not malfunction during the rice soaking stage, heating the rice in the rice soaking stage continues in the first heating mode until the total heating time of the rice soaking stage reaches a preset first heating time or the temperature of the lower portion of the rice-water mixture reaches a preset first temperature threshold;

[0019] Entering the heating stage of the cooking program, the cooking utensil is controlled to heat in a preset fourth heating mode during the heating stage so that the upper temperature of the rice-water mixture in the cooking utensil is higher than the lower temperature. The fourth heating mode includes heating with a duty ratio of A4:B4:C4:D4, where A4 represents the side heating time, B4 represents the corner heating time, and C4 represents the bottom heating time; and D4 represents the stop time when heating of each area is stopped, wherein A4>C4 and A4>B4.

[0020] Furthermore, the method further comprises:

[0021] During the heating process of the heating stage, the heating time required for the top temperature of the inner cavity of the cooking utensil to rise to a preset temperature range is obtained;

[0022] determining whether an abnormality occurs in the side heating function of the cooking appliance during the heating phase based on the heating time;

[0023] If the side heating function of the cooking appliance is abnormal during the heating stage, the fourth heating mode is switched to the preset third heating mode, and the heating during the heating stage is continued in the third heating mode. The third heating mode includes heating in a duty ratio of A3:B3:C3:D3, where A3 represents the side heating time, B3 represents the corner heating time, and C3 represents the bottom heating time; and D3 represents the stop time for stopping heating in each area, wherein A3=0 and B3>C3;

[0024] Otherwise, heating is performed in the fourth heating mode until the boiling stage is reached.

[0025] Furthermore, judging whether the side heating function of the cooking appliance is abnormal during the heating time according to the heating time includes:

[0026] determining a target rice level in the cooking utensil according to a heating time corresponding to when the temperature of the lower portion of the rice-water mixture in the cooking utensil reaches a preset second temperature threshold during the heating process of the soaking rice stage;

[0027] Obtaining a target heating time corresponding to the target rice level, where the target heating time is the heating time required for the top temperature of the inner cavity of the cooking utensil to rise to a preset temperature range under the condition of the target rice level;

[0028] Determining whether a difference between the heating time and the target heating time is greater than or equal to a preset second abnormality threshold;

[0029] If the time difference is greater than or equal to a preset second abnormality threshold, it is determined that the side heating function of the cooking appliance has an abnormality in the heating time.

[0030] Furthermore, the method further comprises:

[0031] When the top temperature of the inner cavity of the cooking utensil is higher than the preset boiling temperature threshold, it enters the boiling stage, and is heated in the boiling stage with the preset fifth heating mode. The fifth heating mode includes heating with a duty ratio of A5:B5:C5:D5, where A5 represents the side heating time, B5 represents the corner heating time, and C5 represents the bottom heating time; D5 represents the stop time when heating of each area is stopped, wherein A5=0 and C5>B5.

[0032] Furthermore, the method further comprises:

[0033] During the rice stewing stage, heating is performed in a preset sixth heating mode. The sixth heating mode includes heating with a duty ratio of A6:B6:C6:D6, where A6 represents the side heating time, B6 represents the corner heating time, and C6 represents the bottom heating time; D6 represents the stop time for stopping heating in each area, wherein A6=0 and C6>B6, or A6=B6=0 and C6>0.

[0034] In a second aspect, the present invention provides a cooking control device for a cooking appliance, the device comprising a functional module for implementing the above method.

[0035] In a third aspect, the present invention provides a cooking appliance comprising a device body and a controller, wherein the controller comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the steps of the method described above are implemented.

[0036] Furthermore, the device body includes a pot body, a first heating component, a second heating component and a third heating component, the first heating component is located at the bottom of the pot body to realize the bottom heating function, the second heating component is located in the corner area of the bottom and side of the pot body to realize the corner heating function, and the third heating component is located on the side of the pot body to realize the side heating function, wherein the first heating component is controlled by a single IGBT, and the second heating component and the third heating component are controlled by IGBT and relay switching.

[0037] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the method described above when executed by a processor.

[0038] The cooking control method and device for a cooking appliance, the cooking appliance, and the storage medium of the present invention have the following advantages:

[0039] The embodiments of the present invention propose a cooking control method and device for a cooking appliance, a cooking appliance, and a storage medium. These methods can determine whether the side heating function is abnormal based on changes in the top and bottom temperatures of the cooking appliance's inner cavity during a cooking stage that significantly affects the moisture deviation of rice, that is, whether the relay that controls the side heating component to perform heating is operating normally. When an abnormality occurs in the side heating function, the control program can be adjusted in a timely manner to reduce the moisture deviation of the rice and ensure that the rice absorbs water evenly, thereby ensuring the rice cooking effect.

[0040] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. The drawings are only used to illustrate preferred implementation methods and are not considered to be limitations of the present invention.

[0042] Figure 1 This is a flow chart of a cooking control method for a cooking appliance proposed in an embodiment of the present invention;

[0043] Figure 2 A flowchart of a cooking control method for a cooking appliance according to another embodiment of the present invention;

[0044] Figure 3 A flowchart of a specific implementation of the cooking control method of a cooking appliance proposed in an embodiment of the present invention;

[0045] Figure 4This is a structural block diagram of a cooking control device for a cooking appliance proposed in an embodiment of the present invention. DETAILED DESCRIPTION

[0046] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0047] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art in the art to which the present invention pertains. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with those in the context of the prior art and, unless specifically defined, will not be interpreted in an idealized or overly formal sense.

[0048] The cooking utensil in the embodiment of the present invention may be a cooking utensil with a cooking function, such as an electric rice cooker and an electric pressure cooker. This embodiment is specifically described by taking an electric rice cooker as an example.

[0049] Figure 1 The flowchart of the cooking control method of the cooking appliance proposed in the embodiment of the present invention is schematically shown. Figure 1 As shown, the cooking control method of the cooking appliance proposed in the embodiment of the present invention includes the following steps:

[0050] S11. During the heating process of the rice soaking stage, determine whether the side heating function of the cooking appliance is abnormal according to the temperature changes of the top temperature and the bottom temperature of the inner cavity of the cooking appliance.

[0051] In an embodiment of the present invention, whether an abnormality occurs in the side heating function of the cooking appliance during the rice soaking stage is judged based on the temperature changes of the top temperature and the bottom temperature of the inner cavity of the cooking appliance. The specific implementation method includes the following: when the heating time in the rice soaking stage reaches a preset abnormality judgment time, a first temperature change value of the top temperature and a second temperature change value of the bottom temperature of the inner cavity of the cooking appliance are obtained; it is judged whether the temperature change difference between the first temperature change value and the second temperature change value is greater than or equal to a preset first abnormality threshold; if the temperature change difference is greater than or equal to the preset first abnormality threshold, it is determined that an abnormality occurs in the side heating function of the cooking appliance during the rice soaking stage.

[0052] The abnormality judgment time may be selected as 3-5 minutes, and the first abnormality threshold may be selected as 0, which is not specifically limited in the present invention.

[0053] S12. If the side heating function of the cooking appliance is abnormal during the rice soaking stage, the first heating mode during the rice soaking stage is switched to a preset second heating mode, and heating during the rice soaking stage is continued in the second heating mode until the total heating time during the rice soaking stage reaches the preset first heating time or the lower temperature of the rice-water mixture reaches the preset first temperature threshold. The second heating mode includes heating with a duty ratio of A2:B2:C2:D2, where A2 represents the side heating time, B2 represents the corner heating time, and C2 represents the bottom heating time; and D2 represents the stop time for stopping heating in each area, wherein A2=0 and B2>C2. In an optional embodiment, A2:B2:C2:D2=0:12:0:4.

[0054] In an embodiment of the present invention, during the rice soaking stage, the heating component is controlled to heat in a first heating mode, namely Dk1. The first heating mode is mainly side heating, so that the temperature of the upper layer of rice water reaches a certain bottom temperature sensing bag temperature point, namely the first temperature threshold T1, or the bottom temperature sensing bag temperature, namely the bottom temperature of the cooking vessel cavity, is maintained in a certain temperature range (T2+△T1) for a first heating time t. The heating component includes a first heating component, a second heating component, and a third heating component. The first heating component is located at the bottom of the pot body to achieve a bottom heating function, the second heating component is located at the corner area of the bottom and side of the pot body to achieve a corner heating function, and the third heating component is located at the side of the pot body to achieve a side heating function. The first heating component is controlled by a single IGBT, and the second heating component and the third heating component are controlled by IGBT and relay switching.

[0055] A cooking control method for a cooking appliance proposed in an embodiment of the present invention can determine whether the side heating function is abnormal based on changes in the top temperature and bottom temperature of the cooking appliance inner cavity during the rice soaking stage, which significantly affects the moisture deviation of the rice. That is, whether the relay that controls the side heating component to perform heating is working normally. When the side heating function is abnormal, the control program is adjusted in time to reduce the moisture deviation of the rice and make the rice absorb water evenly, thereby ensuring the rice cooking effect.

[0056] Furthermore, if Figure 2 As shown, the cooking control method of the cooking appliance proposed in the embodiment of the present invention further includes step S10: determining whether the side heating function of the cooking appliance is abnormal before the rice soaking stage based on the temperature changes of the top temperature and the bottom temperature of the inner cavity of the cooking appliance during the heating process of the rice soaking stage;

[0057] Step S10: During the rice soaking stage of the cooking program, the cooking vessel is controlled to heat in a preset first heating mode so that the upper temperature of the rice-water mixture in the cooking vessel is higher than the lower temperature. The first heating mode includes heating in a duty ratio of A1:B1:C1:D1, where A1 represents the side heating time, B1 represents the corner heating time, and C1 represents the bottom heating time; and D1 represents the stop time for stopping heating in each area, wherein A1>C1 and A1>B1.

[0058] In an optional embodiment, A1:B1:C1:D1=10:2:0:4.

[0059] During the rice soaking stage, in order to reduce the moisture deviation of the rice and make the rice absorb water evenly, the cooking appliance is heated in a preset first heating mode. The first heating mode is mainly side heating, that is, the side heating time A1 is greater than the corner heating time and the bottom heating time. In an optional embodiment, bottom heating can be omitted as long as the upper temperature of the rice-water mixture in the cooking appliance can be higher than the lower temperature.

[0060] Furthermore, when the total heating time of the rice soaking stage reaches a preset first heating time or the temperature of the lower part of the rice-water mixture reaches a preset first temperature threshold, the method further includes:

[0061] Entering the heating stage of the cooking program, the cooking vessel is controlled to heat in a preset third heating mode during the heating stage so that the upper temperature of the rice-water mixture in the cooking vessel is higher than the lower temperature. The third heating mode includes heating with a duty ratio of A3:B3:C3:D3, where A3 represents the side heating time, B3 represents the corner heating time, and C3 represents the bottom heating time; and D3 represents the stop time for stopping heating in each area, wherein A3=0 and B3>C3. In an optional embodiment, A3:B3:C3:D3=0:14:0:2.

[0062] In another embodiment of the present invention, if the side heating function of the cooking appliance does not malfunction during the rice soaking stage, heating during the rice soaking stage is continued in the first heating mode until the total heating time during the rice soaking stage reaches a preset first heating time or the temperature of the lower portion of the rice-water mixture reaches a preset first temperature threshold;

[0063] Entering the heating stage of the cooking program, the cooking utensil is controlled to heat in a preset fourth heating mode during the heating stage so that the upper temperature of the rice-water mixture in the cooking utensil is higher than the lower temperature. The fourth heating mode includes heating with a duty ratio of A4:B4:C4:D4, where A4 represents the side heating time, B4 represents the corner heating time, and C4 represents the bottom heating time; and D4 represents the stop time for stopping heating in each area, wherein A4>C4 and A4>B4. In an optional embodiment, A4:B4:C4:D4=12:2:0:2.

[0064] In an embodiment of the present invention, if the side heating function of the cooking appliance does not malfunction during the rice soaking stage, the heating component is controlled to heat in the fourth heating mode Dk2 during the temperature rise stage, with the side coil heating being the main method until the temperature of the top temperature sensing package reaches a certain temperature T3, and then the boiling stage is entered. In an optional embodiment, T3 can be 80°C-90°C.

[0065] In an embodiment of the present invention, during the heating process in the heating stage, the heating time required for the top temperature of the inner cavity of the cooking utensil to rise to a preset temperature range is obtained; based on the heating time, it is determined whether the side heating function of the cooking utensil is abnormal during the heating stage; if the side heating function of the cooking utensil is abnormal during the heating stage, the fourth heating mode is switched to the preset third heating mode, and the heating in the heating stage is continued in the third heating mode, the third heating mode includes heating with a duty ratio of A3:B3:C3:D3, wherein A3 represents the side heating time, B3 represents the corner heating time, and C3 represents the bottom heating time; and D3 represents the stop time for stopping heating in each area, wherein A3=0 and B3>C3, otherwise, heating is performed in the fourth heating mode until entering the boiling stage. Among them, judging whether the side heating function of the cooking utensil has an abnormality during the heating time according to the heating time specifically includes the following steps: judging the target rice level in the cooking utensil according to the heating time corresponding to when the lower temperature of the rice-water mixture in the cooking utensil reaches a preset second temperature threshold during the heating process of the rice soaking stage; obtaining the target heating time corresponding to the target rice level, the target heating time being the heating time required for the top temperature of the inner cavity of the cooking utensil to rise to a preset temperature range under the condition of the target rice level; judging whether the difference between the heating time and the target heating time is greater than or equal to a preset second abnormality threshold; if the difference is greater than or equal to the preset second abnormality threshold, it is determined that the side heating function of the cooking utensil has an abnormality during the heating time.

[0066] The preset temperature range may be 10° C., and the second abnormal threshold may be 20s-35s, which are not specifically limited in the present invention.

[0067] In an embodiment of the present invention, when the top temperature of the inner cavity of the cooking utensil is higher than a preset boiling temperature threshold, it enters the boiling stage, and heating is performed in the boiling stage in a preset fifth heating mode. The fifth heating mode includes heating with a duty ratio of A5:B5:C5:D5, where A5 represents the side heating time, B5 represents the corner heating time, and C5 represents the bottom heating time; and D5 represents the stop time when heating of each area is stopped, wherein A5=0 and C5>B5. In an optional embodiment, A5:B5:C5:D5=0:4:6:6.

[0068] In an embodiment of the present invention, the boiling stage can be specifically divided into a boiling stage 1, i.e., a primary boiling stage, and a boiling stage 2, i.e., a boiling maintenance stage. In boiling stage 1, heating is mainly performed on the sides and / or the R-angle, with bottom heating as a supplementary method. Boiling stage 2 is similar to the rice stewing stage, with bottom heating as a supplementary method. Boiling stage 1 can be heated according to the following duty ratio of 0:6:4:6, and boiling stage 2 can be heated by switching the heating mode to the following duty ratio of 0:2:6:8.

[0069] Specifically, after the boiling stage ends, the rice stewing stage is entered, and heating is performed in a preset sixth heating mode in the rice stewing stage. The sixth heating mode includes heating with a duty ratio of A6:B6:C6:D6, where A6 represents the side heating time, B6 represents the corner heating time, and C6 represents the bottom heating time; D6 represents the stop time when heating of each area is stopped, wherein A6=0 and C6>B6, or A6=B6=0 and C6>0. In an optional embodiment, A6:B6:C6:D6=0:2:3:11.

[0070] The following is an explanation of a method for controlling cooking by using a variable power continuous heating control method during the boiling maintenance phase through a specific embodiment. Figure 3 As shown, specifically including:

[0071] Heat with Dk1 and maintain at the bottom temperature interval (T2+△T1) until the maintenance time ≥ t;

[0072] If 4 minutes into the rice soaking stage, the temperature change of the top temperature-sensing package (ΔTT) - the temperature change of the bottom temperature-sensing package (ΔTB) is greater than 0, it is judged that the side coil is working normally; otherwise, it is judged that the relay is abnormal and cannot be switched to the side coil. Subsequently, in the rice soaking stage, the second heating mode Dk1' is used instead of the first heating mode Dk1 for heating, where R angle heating is mainly used. Specifically, A=0, B-2≥C≥0; in the temperature rising stage, the third heating mode Dk2' is used instead of the fourth heating mode Dk2 for heating, and the corner and bottom are switched for heating, and the R angle heating time is greater than the bottom heating time; in the boiling stage, the R angle and bottom are switched for heating, and the bottom heating time is greater than the R angle heating time; in the rice stewing stage, the R angle and bottom are switched for heating / bottom heating alone is used.

[0073] If the side coils are functioning properly, Dk1 heating is used to complete the soaking stage, followed by the warm-up stage. During the warm-up stage, the total heating time at the end of the soaking stage is used to differentiate between different rice quantities (the smaller the rice quantity, the shorter the total heating time). If the warm-up time required for the top temperature sensor to rise by 10°C (t1) minus the preset target warm-up time for each rice quantity (t2) is ≥ 30s, the relay is considered abnormal and side coil heating cannot be switched. The control program is subsequently adjusted to use Dk2' heating during the warm-up stage, switching between the corner and bottom heating, with the R corner heating time greater than the bottom heating time; switching between the R corner and bottom heating during the boiling stage, with the bottom heating time greater than the R corner heating time; and switching between the R corner and bottom heating or heating the bottom alone during the simmering stage.

[0074] For simplicity of description, the method embodiments are described as a series of actions. However, those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because certain steps can be performed in other orders or simultaneously according to the embodiments of the present invention. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0075] Figure 4 FIG. 1 is a structural block diagram of a cooking control device for a cooking appliance according to an embodiment of the present invention. Figure 4 As shown, the device includes a functional module for implementing the cooking control method of the cooking appliance as described in the above embodiment, specifically including:

[0076] A control module 201 is configured to control a cooking vessel to heat in a preset first heating mode during a rice soaking stage of a cooking program, so that the upper temperature of the rice-water mixture in the cooking vessel is higher than the lower temperature. The first heating mode includes heating in a duty ratio of A1:B1:C1:D1, where A1 represents a side heating time, B1 represents a corner heating time, and C1 represents a bottom heating time; and D1 represents a stop time for stopping heating in each area, wherein A1>C1 and A1>B1;

[0077] The judgment module 202 is used to judge whether the side heating function of the cooking appliance is abnormal during the rice soaking stage based on the temperature changes of the top and bottom temperatures of the cooking appliance cavity during the heating process of the rice soaking stage;

[0078] The control module 201 is also used to switch the first heating mode to a preset second heating mode when an abnormality occurs in the side heating function of the cooking appliance during the rice soaking stage, and continue heating the rice soaking stage in the second heating mode until the total heating time of the rice soaking stage reaches the preset first heating time or the lower temperature of the rice-water mixture reaches the preset first temperature threshold. The second heating mode includes heating with a duty ratio of A2:B2:C2:D2, where A2 represents the side heating time, B2 represents the corner heating time, and C2 represents the bottom heating time; and D2 represents the stop time when heating of each area is stopped, wherein A2=0 and B2>C2.

[0079] In an embodiment of the present invention, the control module 201 is further configured to enter a heating phase of a cooking program when the total heating duration of the rice soaking stage reaches a preset first heating duration or the lower temperature of the rice-water mixture reaches a preset first temperature threshold value, and control the cooking utensil to heat in a preset third heating mode during the heating phase so that the upper temperature of the rice-water mixture in the cooking utensil is higher than the lower temperature. The third heating mode includes heating in a duty cycle of A3:B3:C3:D3, where A3 represents the side heating time, B3 represents the corner heating time, and C3 represents the bottom heating time; and D3 represents the stop time when heating is stopped in each zone, wherein A3=0 and B3>C3.

[0080] In the embodiment of the present invention, the control module 201 is further configured to, if the side heating function of the cooking appliance does not malfunction during the rice soaking stage, continue heating the rice in the first heating mode until the total heating time during the rice soaking stage reaches a preset first heating time or the temperature of the lower portion of the rice-water mixture reaches a preset first temperature threshold;

[0081] Entering the heating stage of the cooking program, the cooking utensil is controlled to heat in a preset fourth heating mode during the heating stage so that the upper temperature of the rice-water mixture in the cooking utensil is higher than the lower temperature. The fourth heating mode includes heating with a duty ratio of A4:B4:C4:D4, where A4 represents the side heating time, B4 represents the corner heating time, and C4 represents the bottom heating time; and D4 represents the stop time when heating of each area is stopped, wherein A4>C4 and A4>B4.

[0082] Furthermore, the device further includes an acquisition module not shown in the drawings:

[0083] The acquisition module is used to obtain the heating time required for the top temperature of the inner cavity of the cooking utensil to rise to a preset temperature range during the heating process of the heating stage;

[0084] Furthermore, in the judgment module 202, the HIA is used to judge whether the side heating function of the cooking appliance is abnormal during the heating stage according to the heating time;

[0085] The control module 201 is also used to switch the fourth heating mode to the preset third heating mode if an abnormality occurs in the side heating function of the cooking appliance during the heating stage, and continue heating in the heating stage in the third heating mode. The third heating mode includes heating with a duty ratio of A3:B3:C3:D3, where A3 represents the side heating time, B3 represents the corner heating time, and C3 represents the bottom heating time; and D3 represents the stop time for stopping heating in each area, wherein A3=0 and B3>C3, otherwise, heating is performed in the fourth heating mode until entering the boiling stage.

[0086] In an embodiment of the present invention, the control module 201 is also used to enter the boiling stage when the top temperature of the inner cavity of the cooking utensil is higher than a preset boiling temperature threshold, and to perform heating in a preset fifth heating mode during the boiling stage. The fifth heating mode includes heating with a duty cycle of A5:B5:C5:D5, where A5 represents the side heating time, B5 represents the corner heating time, and C5 represents the bottom heating time; and D5 represents the stop time when heating of each area is stopped, wherein A5=0 and C5>B5.

[0087] In an embodiment of the present invention, the control module 201 is further used to perform heating in a preset sixth heating mode during the rice stewing stage. The sixth heating mode includes heating with a duty ratio of A6:B6:C6:D6, where A6 represents the side heating time, B6 represents the corner heating time, and C6 represents the bottom heating time; D6 represents the stop time when heating of each area is stopped, wherein A6=0 and C6>B6, or A6=B6=0 and C6>0.

[0088] It should be noted that for other corresponding descriptions of the functional modules involved in the cooking control device for cooking appliances provided in the embodiment of the present invention, reference can be made to Figure 1 The corresponding description of the illustrated method embodiment will not be repeated here.

[0089] In addition, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the cooking control method for the cooking appliance as described above are implemented.

[0090] In this embodiment, when the cooking control method for a cooking appliance is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention can implement all or part of the process steps in the above-mentioned method embodiments by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, it can implement the steps of each of the above-mentioned method embodiments. The computer program includes computer program code, which can be in source code form, object code form, executable file, or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal, and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media does not include electric carrier signals and telecommunication signals.

[0091] In addition, an embodiment of the present invention further provides a cooking appliance, the cooking appliance comprising a device body and a controller, the controller comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the cooking control method of the cooking appliance as described above when executing the computer program. Figure 1 Alternatively, the functions of each module / unit in the cooking control device embodiment of the cooking appliance, such as Figure 4 The control module 201 and the judgment module 202 are shown.

[0092] Furthermore, the device body of the cooking utensil includes a pot body, a first heating component, a second heating component and a third heating component, the first heating component is located at the bottom of the pot body to realize the bottom heating function, the second heating component is located in the corner area of the bottom and side of the pot body to realize the corner heating function, and the third heating component is located on the side of the pot body to realize the side heating function, wherein the first heating component is controlled by a single IGBT, and the second heating component and the third heating component are controlled by IGBT and relay switching.

[0093] Furthermore, the device body of the cooking utensil also includes a temperature sensing component, which includes a top temperature sensing package and a bottom temperature sensing package for obtaining the top temperature and the bottom temperature of the inner cavity of the cooking utensil.

[0094] The embodiments of the present invention propose a cooking control method and device for a cooking appliance, a cooking appliance, and a storage medium. The methods can determine whether the side heating function is abnormal, that is, whether the relay that controls the side heating component to perform heating is working normally, based on the top temperature and the bottom temperature of the cooking appliance inner cavity during the two cooking stages that significantly affect the moisture deviation of rice, and adjust the control program in time when the side heating function is abnormal. In the initial stages of soaking rice, heating and boiling, cooking is continued using a control method that mainly uses R-angle heating and supplemented by bottom heating, thereby reducing the moisture deviation of rice and allowing the rice to absorb water evenly to ensure the rice cooking effect.

[0095] In the embodiments of the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the units or divisions of the units are merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical or other forms.

[0096] Those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of the present invention and to form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cooking control method for a cooking appliance, characterized in that: The method comprises: During the heating process of the rice soaking stage, judging whether the side heating function of the cooking appliance is abnormal according to the temperature changes of the top temperature and the bottom temperature of the inner cavity of the cooking appliance; If the side heating function of the cooking appliance is abnormal during the rice soaking stage, the first heating mode during the rice soaking stage is switched to a preset second heating mode, and heating during the rice soaking stage is continued in the second heating mode until the total heating time during the rice soaking stage reaches the preset first heating time or the temperature of the lower part of the rice-water mixture reaches a preset first temperature threshold. The second heating mode includes heating in a duty ratio of A2:B2:C2:D2, where A2 represents the side heating time, B2 represents the corner heating time, and C2 represents the bottom heating time; and D2 represents the stop time for stopping heating in each area, wherein A2=0 and B2>C2; Before determining whether a side heating function of the cooking utensil is abnormal during the rice soaking stage based on temperature changes of the top temperature and the bottom temperature of the inner cavity of the cooking utensil during the rice soaking stage, the method further includes: controlling the cooking utensil to heat in a preset first heating mode during the rice soaking stage of the cooking program so that the upper temperature of the rice-water mixture in the cooking utensil is higher than the lower temperature, the first heating mode comprising heating in a duty ratio of A1:B1:C1:D1, wherein A1 represents a side heating time, B1 represents a corner heating time, and C1 represents a bottom heating time; and D1 represents a stop time for stopping heating of all areas, wherein A1>C1 and A1>B1; If the side heating function of the cooking utensil does not malfunction during the rice soaking stage, heating in the rice soaking stage is continued in the first heating mode until the total heating time in the rice soaking stage reaches a preset first heating time or the lower temperature of the rice-water mixture reaches a preset first temperature threshold; the cooking program enters a heating stage, during which the cooking utensil is controlled to heat in a preset fourth heating mode so that the upper temperature of the rice-water mixture in the cooking utensil is higher than the lower temperature, the fourth heating mode including heating with a duty ratio of A4:B4:C4:D4, where A4 represents the side heating time, B4 represents the corner heating time, and C4 represents the bottom heating time; and D4 represents the stop time when heating of each area is stopped, wherein A4>C4 and A4>B4.

2. The cooking control method of a cooking appliance according to claim 1, wherein: When the total heating time of the rice soaking stage reaches a preset first heating time or the temperature of the lower portion of the rice-water mixture reaches a preset first temperature threshold, the method further includes: Entering the heating stage of the cooking program, the cooking appliance is controlled to heat in a preset third heating mode during the heating stage so that the upper temperature of the rice-water mixture in the cooking appliance is higher than the lower temperature. The third heating mode includes heating with a duty ratio of A3:B3:C3:D3, where A3 represents the side heating time, B3 represents the corner heating time, and C3 represents the bottom heating time; D3 represents the stop time for stopping heating in each area, wherein A3=0 and B3>C3.

3. The cooking control method of a cooking appliance according to claim 1, wherein: Based on the temperature changes at the top and bottom of the cooking cavity, determine whether the side heating function of the cooking appliance is abnormal during the rice soaking stage, including: When the heating time of the rice soaking stage reaches a preset abnormality judgment time, obtaining a first temperature change value of the top temperature and a second temperature change value of the bottom temperature of the inner cavity of the cooking utensil; Determining whether a temperature change difference between the first temperature change value and the second temperature change value is greater than or equal to a preset first abnormality threshold; If the temperature change difference is greater than or equal to a preset first abnormality threshold, it is determined that the side heating function of the cooking appliance is abnormal during the rice soaking stage.

4. The cooking control method of a cooking appliance according to claim 1, wherein: The method further comprises: During the heating process of the heating stage, the heating time required for the top temperature of the inner cavity of the cooking utensil to rise to a preset temperature range is obtained; determining whether an abnormality occurs in the side heating function of the cooking appliance during the heating phase based on the heating time; If the side heating function of the cooking appliance is abnormal during the heating stage, the fourth heating mode is switched to the preset third heating mode, and the heating during the heating stage is continued in the third heating mode. The third heating mode includes heating in a duty ratio of A3:B3:C3:D3, where A3 represents the side heating time, B3 represents the corner heating time, and C3 represents the bottom heating time; and D3 represents the stop time for stopping heating in each area, wherein A3=0 and B3>C3; Otherwise, heating is performed in the fourth heating mode until the boiling stage is reached.

5. The cooking control method of a cooking appliance according to claim 4, wherein: The determining, based on the heating time, whether an abnormality occurs in the side heating function of the cooking appliance during the heating time includes: determining a target rice level in the cooking utensil according to a heating time corresponding to when the temperature of the lower portion of the rice-water mixture in the cooking utensil reaches a preset second temperature threshold during the heating process of the soaking rice stage; Obtaining a target heating time corresponding to the target rice level, where the target heating time is the heating time required for the top temperature of the inner cavity of the cooking utensil to rise to a preset temperature range under the condition of the target rice level; Determine whether a difference between the heating time and the target heating time is greater than or equal to a preset second abnormality threshold; If the time difference is greater than or equal to a preset second abnormality threshold, it is determined that the side heating function of the cooking appliance is abnormal in the heating time.

6. The cooking control method of a cooking appliance according to any one of claims 1 to 5, characterized in that: The method further comprises: When the top temperature of the inner cavity of the cooking utensil is higher than the preset boiling temperature threshold, it enters the boiling stage, and is heated in the boiling stage with the preset fifth heating mode. The fifth heating mode includes heating with a duty ratio of A5:B5:C5:D5, where A5 represents the side heating time, B5 represents the corner heating time, and C5 represents the bottom heating time; D5 represents the stop time when heating of each area is stopped, wherein A5=0 and C5>B5.

7. The cooking control method of a cooking appliance according to claim 6, wherein: The method further comprises: During the rice stewing stage, heating is performed in a preset sixth heating mode. The sixth heating mode includes heating with a duty ratio of A6:B6:C6:D6, where A6 represents the side heating time, B6 represents the corner heating time, and C6 represents the bottom heating time; D6 represents the stop time for stopping heating in each area, wherein A6=0 and C6>B6, or A6=B6=0 and C6>0.

8. A cooking control device for a cooking appliance, characterized in that: The device includes a functional module for implementing the method according to any one of claims 1 to 6.

9. A cooking utensil, characterized in that: The device comprises a device body and a controller, wherein the controller comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. The cooking appliance according to claim 9, characterized in that The device body includes a pot body, a first heating component, a second heating component and a third heating component. The first heating component is located at the bottom of the pot body to realize the bottom heating function, the second heating component is located in the corner area of the bottom and side of the pot body to realize the corner heating function, and the third heating component is located on the side of the pot body to realize the side heating function. The first heating component is controlled by a single IGBT, and the second heating component and the third heating component are controlled by IGBT and relay switching.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is controlled by a processor, the computer program implements the steps of the method according to any one of claims 1 to 7.

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