CN114484525A

CN114484525A - Kitchen range and control method thereof

Info

Publication number: CN114484525A
Application number: CN202210225341.3A
Authority: CN
Inventors: 黄涛; 林常盛
Original assignee: Hisense Home Appliances Group Co Ltd
Current assignee: Hisense Home Appliances Group Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-05-13

Abstract

The embodiment of the application discloses a cooker and a control method thereof, relates to the technical field of intelligent kitchen electricity, and is used for ensuring the accuracy of temperature control of a cooker. This cooking utensils include: the temperature sensor is used for detecting the temperature value of the pot; a controller connected to the temperature sensor, the controller configured to: acquiring a real-time temperature value of the pot in the current period; if the absolute value of the difference value between the real-time temperature value and the target temperature value is smaller than or equal to a preset threshold value, determining a predicted temperature value of each gear according to the real-time temperature value and the temperature change speed of each gear of the stove; the predicted temperature value of one gear is a temperature value which is predicted to be reached by the cooker when the cooker uses the gear in the next period of the current period; and taking the gear corresponding to the minimum value in the absolute values of the difference values between the predicted temperature value and the target temperature value of each gear as the gear used by the stove in the next period of the current period.

Description

Kitchen range and control method thereof

Technical Field

The application relates to the technical field of intelligent kitchen electricity, in particular to a cooker and a control method thereof.

Background

The current kitchenware products are undergoing the process of product refinement and intellectualization. Along with the increasing improvement of the intellectualization of large-scale household appliances such as refrigerators, ovens, range hoods and the like, products such as electromagnetic ranges and the like are also added into intellectualized promotion ranks in many times.

The intelligentization of the induction cooker is mainly embodied in automatic temperature control, and the temperature control technology adopted in the industry is a temperature control algorithm scheme which is controlled and realized by a proportional-integral-derivative (PID) algorithm. The temperature control is carried out through proportional, integral and differential adjustment, and the temperature curve can be well processed by predicting the nonlinear curve change. However, the temperature curve during cooking is affected by environmental variables, such as air pressure, water temperature, season, etc., which causes hysteresis in the temperature control technique provided by the PID algorithm, resulting in poor accuracy of temperature control.

Disclosure of Invention

The embodiment of the application provides a cooker and a control method thereof, which are used for ensuring the accuracy of temperature control of a cooker.

In a first aspect, a cooktop is provided, comprising:

the temperature sensor is used for detecting the temperature value of the pot;

a controller connected to the temperature sensor, the controller configured to:

acquiring a real-time temperature value of the pot in the current period;

if the absolute value of the difference value between the real-time temperature value and the target temperature value is smaller than or equal to a preset threshold value, determining a predicted temperature value of each gear according to the real-time temperature value and the temperature change speed of each gear of the stove; the predicted temperature value of one gear is the temperature value which is predicted to be reached by the cooker when the cooker uses the gear in the next period of the current period;

and taking the gear corresponding to the minimum value in the absolute values of the difference values between the predicted temperature value and the target temperature value of each gear as the gear used by the stove in the next period of the current period.

Based on the technical scheme, if the absolute value of the difference value between the real-time temperature value and the target temperature value is smaller than or equal to the preset threshold value, the real-time temperature value is close to the target temperature value, and the gear of the cooker can be finely adjusted at the moment so as to realize the constant temperature control of the temperature of the cooker. Because each gear of the cooker has a corresponding temperature change speed, the predicted temperature value which can be reached by the cooker when the cooker uses the gear in the next period of the current period can be determined according to the real-time temperature value and the temperature change speed of each gear of the cooker. And then taking the gear corresponding to the minimum value in the absolute values of the difference values between the predicted temperature value and the target temperature value of each gear as the gear used by the stove in the next period of the current period. It can be understood that if the absolute value of the difference between the predicted temperature value and the target temperature value of a gear is the minimum, the predicted temperature value corresponding to the gear is the closest to the target temperature value, so that the gear can be used as the gear to be used in the next period of the stove. Therefore, the gear used by the cooker in the next period after the current period is determined based on the relation between the predicted temperature value and the target temperature value of each gear of the cooker, so that the cooker can be accurately adjusted to heat the gear to be used by the cooker in the next period, the temperature of the cooker is kept constant, and the accuracy of controlling the temperature of the cooker is guaranteed.

In some embodiments, the controller is configured to determine a predicted temperature value corresponding to each gear according to the real-time temperature value and the temperature change speed of each gear of the cooker, and specifically execute the following steps: and determining a predicted temperature value corresponding to each gear according to the real-time temperature value, the temperature change speed corresponding to each gear of the stove and the temperature correction factor.

In some embodiments, the controller is further configured to: acquiring temperature values of a pot at each moment in N moments included in the last period of the current period, wherein N is a positive integer; according to the temperature value of each moment in the N moments included in the last period, determining the predicted temperature value of the pot in the current period; and obtaining a temperature correction factor according to the predicted temperature value and the real-time temperature value of the pot in the current period.

In some embodiments, the controller is configured to obtain the temperature correction factor according to the predicted temperature value and the real-time temperature value of the pot in the current cycle, and specifically execute the following steps: and subtracting the predicted temperature value of the pot in the current period from the real-time temperature value to obtain a temperature correction factor.

In some embodiments, the controller is configured to determine, according to the temperature value at each of the N times included in the previous cycle, a predicted temperature value of the pot in the current cycle, and specifically execute the following steps:

according to the formula

Determining the temperature variation delta T of the previous period of the current period, wherein N is N moments included in the previous period of the current period, i is the ith moment in the N moments, and T_iA and f are constant values of the temperature at the moment i;

according to the formula

Determining the temperature offset delta K of the previous period of the current period, wherein b is a constant;

according to the formula T_p＝N×ΔT+ΔK+T_NDetermining the predicted temperature value T of the pot in the current period_pWherein, T_NThe temperature value at the last moment in the last cycle of the current cycle.

In some embodiments, the controller is further configured to: if the real-time temperature value of the cookware in the current period is greater than the target temperature value, and the absolute value of the difference between the real-time temperature value and the target temperature value is greater than a preset threshold value, controlling the cooker to adjust the gear to the minimum gear; or if the real-time temperature value is smaller than the target temperature value and the absolute value of the difference value between the real-time temperature value and the target temperature value is larger than a preset threshold value, controlling the stove to adjust the gear to the maximum gear.

In a second aspect, a method of controlling a cooktop is provided, the method comprising: acquiring a real-time temperature value of the pot in the current period; if the absolute value of the difference value between the real-time temperature value and the target temperature value is smaller than or equal to a preset threshold value, determining a predicted temperature value of each gear according to the real-time temperature value and the temperature change speed of each gear of the stove; the predicted temperature value of one gear is the temperature value which is predicted to be reached by the cooker when the cooker uses the gear in the next period of the current period; and taking the gear corresponding to the minimum value in the absolute values of the difference values between the predicted temperature value and the target temperature value of each gear as the gear used by the stove in the next period of the current period.

In a third aspect, an embodiment of the present application provides a controller, including: one or more processors; one or more memories; wherein the one or more memories are for storing computer program code comprising computer instructions which, when executed by the one or more processors, cause the controller to perform any of the methods of controlling a cooking appliance provided by the second aspect.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium comprising computer instructions that, when executed on a computer, cause the computer to perform any one of the methods of controlling a cooktop provided by the second aspect.

In a fifth aspect, embodiments of the present invention provide a computer program product, which is directly loadable into a memory and contains software codes, and which, when loaded and executed by a computer, is capable of implementing any one of the control methods of the cooking appliance as provided in the second aspect.

It should be noted that all or part of the computer instructions may be stored on the computer readable storage medium. The computer readable storage medium may be packaged with or separately from a processor of the controller, which is not limited in this application.

The beneficial effects described in the second aspect to the fifth aspect in the present application may refer to the beneficial effect analysis of the first aspect, and are not described herein again.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic structural diagram of a cooker provided in an embodiment of the present application;

fig. 2 is a schematic view of a display control panel of a display of a cooker provided in an embodiment of the present application;

fig. 3 is a block diagram of a hardware configuration of a cooking appliance provided in an embodiment of the present application;

FIG. 4 is a schematic diagram of a position of a temperature sensor of a cooking appliance provided in an embodiment of the present application;

FIG. 5 is a schematic diagram of a user clicking a function icon of a display of a cooker according to an embodiment of the present application;

FIG. 6 is a schematic view of another embodiment of the present disclosure illustrating a user clicking a function icon of a display of a cooktop;

FIG. 7 is a schematic flow chart of a control method of a cooking appliance provided in an embodiment of the present application;

FIG. 8 is a schematic flow chart of another cooking appliance control method provided by the embodiment of the application;

FIG. 9 is a schematic flow chart of another cooking appliance control method provided by an embodiment of the present application;

FIG. 10 is a schematic view of another embodiment of the present disclosure illustrating a user clicking a function icon of a display of a cooktop;

fig. 11 is a schematic view of a display of a cooker provided in an embodiment of the present application displaying first prompt information;

FIG. 12 is a schematic view of another embodiment of the present disclosure illustrating a user clicking a function icon of a display of a cooktop;

fig. 13 is a schematic view of a display of a cooker provided in an embodiment of the present application displaying second prompt information;

fig. 14 is a schematic hardware structure diagram of a controller according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connected" are used in this application to have a meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, the words "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Fig. 1 is a schematic structural diagram of a cooker provided by the present application according to an exemplary embodiment.

In some embodiments, the cooktop can be a smart cooker, gas range, electromagnetic cooker, or the like. For convenience of description, the cooking range is described as an electromagnetic range.

In some embodiments, the induction cooker can also be called as an induction cooker, which is a product of modern kitchen revolution, and the induction cooker does not need open fire or conduction heating to directly generate heat at the bottom of a pot, so that the heat efficiency is greatly improved. The electromagnetic stove is manufactured by utilizing an electromagnetic induction heating principle and comprises a high-frequency induction heating coil, a high-frequency power conversion device, a controller and the like. When the heating coil is used, alternating current is introduced into the heating coil. An alternating magnetic field is generated around the coil, most of the magnetic lines of force of the alternating magnetic field pass through the metal pot body, and a large amount of eddy current is generated at the bottom of the pot, so that heat required by cooking is generated. Because there is not naked light in the heating process, therefore the electromagnetism kitchen is liked by the user with convenience such as safety, health, and plug-and-play, and the market rate of use is higher and higher.

As shown in fig. 1, the cooktop 100 includes a housing 101, a cooktop panel 102, a display 103, and a controller 104 (not shown in fig. 1).

Wherein, the top of a kitchen range panel 102 sets up on casing 101, and top of a kitchen range panel 102 can be used to bear the weight of the pan.

In some embodiments, the cooktop panel 102 may be a glass ceramic panel or a ceramic panel. Wherein the glass ceramic panel is light transmissive and the ceramic panel is opaque. Both panels are specially treated, and have excellent properties of high temperature resistance and impact resistance.

In some embodiments, the display 103 may be a liquid crystal display, an organic light-emitting diode (OLED) display. The particular type, size, resolution, etc. of the display 103 is not limited, and those skilled in the art will appreciate that the display 103 may be modified in performance and configuration as desired.

The display 103 may be used to display a control panel of the cooktop 100 to implement a human-computer interaction function. For example, as shown in fig. 2, icons of function buttons such as a switch, a quick-fry, a hot pot, a water boiling, a timing, a soup, a constant temperature, a slow fire, "+", "-" and the like may be displayed on the control panel of the cooker 100 displayed on the display 103. Wherein, the "+" function icon represents the temperature increase or the power increase, the "-" function icon represents the temperature decrease or the power decrease, the rectangular box at the middle position between the "+" and "-" function icons can be called as a power/temperature display box, and can be used for displaying the current power used by the cooker, such as 2000W, or the set target temperature value, such as 200 ℃. It should be noted that displaying the function buttons on the display 103 in the form of icons is merely an example, and the display mode of the function buttons is not limited in the embodiment of the present application.

In some embodiments, the cooktop 100 can feed back the current state of the cooktop 100, such as being in a water-boiling state or a stir-fry state, etc., through the display 103.

In some embodiments, the controller 104 refers to a device that can generate an operation control signal according to the command operation code and the timing signal, and instruct the cooking appliance 100 to execute the control command. Illustratively, the controller 104 may be a Central Processing Unit (CPU), a general purpose processor Network Processor (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The controller 104 may also be other devices with processing functions, such as a circuit, a device, or a software module, which is not limited in any way by the embodiments of the present application.

Fig. 3 is a block diagram of a hardware configuration of the cooktop 100 shown herein according to an exemplary embodiment. As shown in fig. 3, the cooktop 100 can also include one or more of the following: heating device 105, cooling fan 106, temperature sensor 107, pot moving detection device 108, voice prompt device 109, communication interface 110 and memory 111.

In some embodiments, the heating device 105 is connected to the controller 104 for providing a heat source to the cooktop 100. The heating device 105 may be disposed below the cooktop panel 102.

In some embodiments, the heating device 105 may be a conventional electric heating device that uses electric energy to achieve a heating effect.

In some embodiments, the heating device 105 may be coil-shaped.

In some embodiments, a heat sink fan 106 is connected to the controller 104 for reducing the temperature inside the cooktop 100. The heat dissipation fan 106 may also be used to increase the air pressure in the air duct of the cooker 100 and discharge high-pressure air, and is a mechanism that increases the air pressure and discharges air by means of input mechanical energy, and the heat dissipation fan 106 may also be a ventilator, a blower, or a wind power generator.

In some embodiments, the cooktop 100 further comprises an air inlet and an air outlet that cooperate with the heat dissipation fan 106 to dissipate heat from the interior of the cooktop 100.

In some embodiments, the temperature sensor 107 is connected to the controller 104 for detecting a temperature value of the pot and sending the detected temperature value of the pot to the controller 104.

Fig. 4 is a schematic diagram illustrating an arrangement position of a temperature sensor provided in the present application according to an exemplary embodiment. As shown in fig. 4, the temperature sensor 107 may be disposed at a central position of the cooktop panel 102.

In some embodiments, the temperature sensor 107 may be a negative temperature coefficient semiconductor thermistor, the resistance of which decreases with the increase of its own temperature and increases with the decrease of its own temperature, and the voltage across the resistor changes due to the change of the resistance.

In some embodiments, the controller 104 can obtain the real-time temperature value of the pot in the current period according to the temperature sensor 107. And according to the real-time temperature value of the cookware in the current period, determining an adjusting instruction of the gear of the cookware 100, and then sending out the adjusting instruction.

In some embodiments, a pan movement detection device 108 is connected to the controller 104 for detecting whether a pan is placed on the cooktop 100.

In some embodiments, pan movement detection device 108 includes a reed switch and a magnet. The two are in a contact state by default, and at this time, the pan moving detection device 108 feeds back a pan moving signal to the controller 104, and the pan moving signal is used for indicating that no pan is placed on the cooking bench panel 102. When a pot is placed on the cooking bench panel 102, the weight causes the spring in the switch reed pipe to be pressed down, so that the reed pipe moves down and is separated from the magnet, and at this time, the pot moving detection device 108 feeds back a pot sitting signal to the controller 104, and the pot sitting signal is used for indicating that the pot is placed on the cooking bench panel 102.

In some embodiments, the controller 104 may further receive a signal fed back by a pan moving detection device 108 configured to the cooker 100, and send an adjustment instruction to the cooker 100 according to the fed back signal. For example, after the controller 104 receives the pan moving signal fed back by the pan moving detection device 108, the controller 104 sends a shutdown instruction to the cooker 100 to avoid wasting power resources and reduce the probability of accidents.

In some embodiments, the voice prompt device 109 is connected to the controller 104 and may be configured to issue a voice prompt after the cooking appliance 100 completes the related cooking operation, such as a timing heating end prompt tone, an overheating prompt tone, a pot movement prompt tone, and the like. The content of the voice prompt may be preset by a manufacturer of the cooker 100, or may be set by a user through the display 103.

In some embodiments, the communication interface 110 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communication interface 110 may include at least one of a wireless communication technology (WIFI) module, a bluetooth module, a wired ethernet module, a Near Field Communication (NFC) module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. Communication interface 110 may be used to communicate with other devices or communication networks (e.g., ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), etc.). Illustratively, the communication interface 110 is coupled to the controller 104, and the controller 104 may communicate with the terminal device via the communication interface 110.

In some embodiments, the memory 111 is connected to the controller 104 for storing applications and data, and the controller 104 performs various functions and data processing of the cooktop 100 by operating the applications and data stored in the memory 111. The memory 111 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and application programs (such as a voice prompt function, an information display function, and the like) required by at least one function; the stored data area may store data created from use of the cooktop 100. Further, the memory 111 may include high speed random access memory, and may also include non-volatile memory, such as a magnetic disk storage device, a flash memory device, or other volatile solid state storage device.

Although not shown in fig. 3, the kitchen range 100 may further include a power supply device (such as a battery and a power management chip) for supplying power to each component, and the battery may be logically connected to the controller 104 through the power management chip, so as to implement functions of power consumption management and the like of the kitchen range 100 through the power supply device.

It is understood that the structure illustrated by the embodiment of the invention does not constitute a specific limitation on the cooker. In other embodiments of the present application, the cooktop can include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

In some embodiments, the cooktop can include multiple gears, for example 8 gears. Different gears correspond to different heating powers.

For example, table 1 below shows exemplary correspondence between different gears and heating powers.

TABLE 1

Gear position	Power of
		P1	1000W
P2	1200W
		P3	1400W
P4	1500W
		P5	1600W
P6	1800W
		P7	2000W
P8
		2200W

It is easy to understand that one heating power corresponds to one temperature change speed, and it can be understood that the larger the heating power is, the faster the temperature change speed is. One heating power corresponds to one gear, that is, one gear corresponds to one temperature change speed, so that different gears corresponding to different temperature change speeds can be obtained, and it can be understood that the higher the gear is, the faster the temperature change speed is.

In some embodiments, the cooktop may include multiple functions, with different functions corresponding to different heating powers.

Exemplarily, table 2 exemplarily shows the correspondence between different functions of the cooktop and the heating power.

TABLE 2

Function(s)	Power of
		Slow fire	1000W
Soup and porridge	1600W
		Chafing dish	1800W
Boiling water	2000W
		Quick-fried food	2200W

In some embodiments, different heating powers correspond to different temperature limits. For example, 1000W corresponds to 160 ℃ and 1600W corresponds to 210 ℃. It is understood that the maximum pot can be heated to 160 ℃ if the cooker is operated at 1000W power and to 200 ℃ if the cooker is operated at 1600W power.

In connection with the above table 2, it can be understood that the different functions of the cookware lead to different maximum temperatures that the cookware can reach.

In some embodiments, the thermostatic function of the cooktop may correspond to a plurality of heating powers. For example, after the user sets the target temperature value by touching a "+" or "-" function icon on the display of the cooker, the user can touch a constant temperature function icon on the display of the cooker. Assuming that the target temperature value set by the user is 200 ℃, namely the heating power is 1600W, the controller controls the cooker to work at the heating power of 1600W all the time until a shutdown instruction of the user is received (namely the user clicks a switch function icon on a display of the cooker again), the constant temperature mode is cancelled, and the cooker enters the shutdown mode.

In some embodiments, a user may use a function where the cooktop may adjust power. It will be appreciated that during cooking of a food item by a user using the hob, different stages may cook the food item using different heating powers. For example, during cooking, a user may first select high power to perform a big fire stir-frying process on the food material, but after the food material is stir-fried for a period of time, in order to prevent the food material from being burnt and taste the food material, the user may select to reduce the power of the cooker to perform a small fire slow stewing process on the food material.

Generally, when a user uses the cooker, the user can adjust the temperature of the cooker by touching a ' + ' or ' -icon on a display of the cooker to adjust the heating power of the cooker.

In some embodiments, as shown in fig. 5, assuming the user selects to use the cooktop for cooking, the user can click on a stir-fry function icon on the display of the cooktop to send a stir-fry instruction to the cooktop. The controller receives a stir-frying instruction sent by a user, responds to the stir-frying instruction sent by the user, controls the power/temperature display frame of the display to display 2200W, and controls the cooker to work in a P8 gear.

After the cooker works in a P8 gear for a period of time, a user needs to slowly stew food materials, and the user can select to click a' -function icon on a display of the cooker so as to send a power-down instruction to the cooker. Assuming that a user needs to reduce the heating power to 1400W, after the cooker receives a power reduction command sent by the user, the power/temperature display frame of the display is controlled to display 1400W in response to the power reduction command sent by the user, and the cooker is controlled to work in a P3 gear.

In some embodiments, a user may use the functionality of the cooktop to maintain a constant temperature. For example, when a user uses the cooker to fry food materials, the oil temperature in the cooker needs to be kept constant, that is, the cooker needs to keep the oil temperature in the cooker constant, so that bad cooking experience brought to the user due to the fact that the oil temperature in the cooker is suddenly high and suddenly low is avoided.

In some embodiments, as shown in fig. 6, a user may set a frying temperature value (i.e., a target temperature value) by touching a "+" or "-" function icon on a display of the cooker, and then click on a constant temperature function icon to control the cooker to enter a constant temperature mode. Assuming that the target temperature value set by the user is 210 ℃, after receiving the target temperature value set by the user and the constant temperature mode command, the controller controls the cooker to work at any gear of P5, P6, P7 or P8, for example, controls the cooker to work at a gear of P6, and controls the power/temperature display frame of the display to display 210 ℃ in response to the target temperature value set by the user and the constant temperature mode command.

The background art can know that the current temperature control algorithm cannot realize accurate control of the temperature of the cookware, and can understand that the current temperature control algorithm cannot enable the cooker to realize accurate control of keeping the temperature of the cookware constant. The embodiment of the application provides a control method of a cooker, which can predict a predicted temperature value which can be reached by the cooker by using each gear in the next period according to the temperature change speed of each gear of the cooker and the real-time temperature value of the cooker in the current period, and further determine the gear to be used by the cooker in the next period according to the predicted temperature value corresponding to each gear of the cooker, so that the cooker can be accurately adjusted to be used in the next period, the cooker temperature can be kept constant, and the cooker temperature can be accurately controlled.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The embodiment of the application provides a control method of a cooker, which is applied to the controller 104 in the cooker 100. As shown in fig. 7, the control method may include the steps of:

s101, acquiring a real-time temperature value of the pot in the current period.

In view of the above, assuming that a user needs to fry food materials with the cooker, the user can set a target temperature value by touching a "+" or "-" function icon on a display of the cooker, and then click a constant temperature function icon on the display of the cooker to control the cooker to enter a constant temperature mode. The target temperature value can be understood as a temperature value which the user needs to enable the pot to reach when frying food.

After the controller receives an instruction of setting a target temperature value by a user and an instruction of entering a constant temperature mode, the real-time temperature value of the cookware is periodically acquired in response to the instruction of setting the target temperature value by the user and the instruction of entering the constant temperature mode.

The real-time temperature value can be understood as the temperature value of the cookware in the current period, and the time interval between the two periods meets the preset time interval. The preset time interval may be set by a user; alternatively, the preset time interval may be custom defined for the cooktop. Illustratively, the predetermined time interval is 3 minutes.

S102, if the absolute value of the difference value between the real-time temperature value and the target temperature value is smaller than or equal to a preset threshold value, determining the predicted temperature value of each gear according to the real-time temperature value and the temperature change speed of each gear of the stove.

In some embodiments, a user may set a target temperature value for the cooker and control the cooker to enter a constant temperature mode after a period of time after the cooker is used for heating, so that a real-time temperature value of the cooker in a current period may be higher than the target temperature value or lower than the target temperature value.

If the absolute value of the difference value between the real-time temperature value and the target temperature value is smaller than or equal to the preset threshold value, the real-time temperature value of the cooker in the current period is close to the target temperature value, and the controller does not need to control the cooker to greatly increase gears for rapid heating treatment or greatly reduce gears for rapid cooling treatment. The controller can control the cooking utensils to enter a fine adjustment mode, namely the gear of the cooking utensils is adjusted to a small extent, so that the temperature value of the cookware is kept within a target temperature value range, and the temperature of the cookware is kept constant. The preset threshold may be preset by a manufacturer of the cooker when the manufacturer leaves a factory, or may be set by a user through a display of the cooker, for example, the preset threshold is 10 ℃.

After the controller determines to control the cooker to enter the fine adjustment mode according to the real-time temperature value of the current period, the controller needs to know the gear to be used by the cooker in the next period after the current period so as to realize fine adjustment of the temperature of the cooker and further keep the temperature of the cooker constant.

As can be seen from the above, the kitchen range can have a plurality of gears, and different gears correspond to different temperature change speeds.

In some embodiments, the controller may determine the predicted temperature value of each gear according to the real-time temperature value of the pot in the current period and the temperature change speed corresponding to each gear of the cooker. The predicted temperature value of one gear is the temperature value which is predicted to be reached by the cooker when the cooker uses the gear in the next cycle of the current cycle.

S103, taking the gear corresponding to the minimum value in the absolute values of the difference values between the predicted temperature value and the target temperature value of each gear as the gear used by the stove in the next period of the current period.

After the predicted temperature values corresponding to the respective gears are determined, the predicted temperature values corresponding to the respective gears may be compared to the target temperature values. If the absolute value of the difference between the predicted temperature value and the target temperature value of one gear in each gear is the minimum, the fact that the temperature value which can be reached by the cooker after the gear is used in the next period after the current period of the cooker is the closest to the target temperature value represents that the gear can be used as the gear to be used in the next period after the current period of the cooker.

For example, assuming that the target temperature value set by the user is 200 ℃, the cooker comprises 4 gears (a first gear, a second gear, a third gear and a fourth gear). If the predicted temperature value corresponding to the first gear is 240 ℃, the predicted temperature value corresponding to the second gear is 140 ℃, the predicted temperature value corresponding to the third gear is 180 ℃, and the predicted temperature value corresponding to the fourth gear is 250 ℃. It can be known through calculation that the absolute value of the difference between the predicted temperature value corresponding to the third gear and the target temperature value is the minimum and is 20 ℃, and then the third gear can be used as the gear to be used by the cooker in the next period after the current period.

Based on the embodiment shown in fig. 7, when the absolute value of the difference between the real-time temperature value of the pot in the current period and the target temperature value is less than or equal to the preset threshold, the real-time temperature value of the pot in the current period and the target temperature value are close to each other, and the gear of the cooker can be finely adjusted to keep the temperature of the pot constant. Because each gear of the cooker corresponds to different temperature change speeds, the predicted temperature value which can be reached by the cooker when the cooker uses the gear in the next period after the current period of each gear can be determined according to the real-time temperature value and the temperature change speed of each gear. And then taking the gear corresponding to the minimum value in the absolute values of the difference values between the predicted temperature value and the target temperature value of each gear as the gear to be used by the cooking range in the next period of the current period. It can be understood that if the absolute value of the difference between the predicted temperature value and the target temperature value of a gear is the minimum, the predicted temperature value corresponding to the gear is the closest to the target temperature value, so that the gear can be used as the gear to be used in the next period of the stove. So, based on the relation between the prediction temperature value and the target temperature value to each gear of cooking utensils, decide the gear that cooking utensils used in next cycle after the current cycle, can make the accurate adjustment of cooking utensils the gear that will use in next cycle to the realization keeps the pan constancy of temperature, has guaranteed the accuracy nature to pan temperature control, has realized the accurate accuse temperature to the pan temperature.

As a possible implementation manner, as shown in fig. 8, after determining that the absolute value of the difference between the real-time temperature value and the target temperature value is greater than or equal to the preset threshold in step S102, how to determine the predicted temperature value of each gear may be specifically implemented as the following steps:

s1021, obtaining the temperature value of the pot at each moment in N moments included in the last period of the current period.

Wherein N is a positive integer.

The storage of the cooker stores the temperature value of the cooker in each period in the heating process of the cooker, and the controller can acquire the temperature value of the cooker at each moment in N moments in the previous period before the current period through the storage. For example, assume that N is 30, that is, temperature values at respective 30 time points included in the last cycle are obtained.

S1022, according to the temperature value of each moment in the N moments included in the last cycle of the current cycle, determining the predicted temperature value of the pot in the current cycle.

After obtaining the temperature value of the pot at each of the N times included in the previous cycle before the current cycle, the temperature variation of the previous cycle may be obtained according to the following formula (1):

where Δ T is a temperature variation amount of a previous cycle, N is a number of times included in a previous period, i denotes an ith time among the N times, and T_iAnd a and f are constants preset by a cooker manufacturer and are temperature values at the ith moment.

The temperature offset of the last cycle can be obtained according to the following equation (2):

wherein, Δ K is the temperature offset of the previous period, and b is a constant preset by a cooker manufacturer.

Furthermore, the predicted temperature value of the cooker in the current period can be obtained through the following formula (3):

T_p＝N×ΔT+ΔK+T_Nformula (3)

Wherein, T_pIs the predicted temperature value, T, of the stove in the current period_NThe temperature value of the cookware at the last moment in the last period of N moments is obtained.

S1023, obtaining a temperature correction factor according to the predicted temperature value and the real-time temperature value of the pot in the current period.

The real-time temperature value of the pot in the current period is obtained in the step S101, and the predicted temperature value of the pot in the current period is obtained in the step S1022.

Optionally, the predicted temperature value of the pot in the current period may be subtracted from the real-time temperature value of the pot in the current period to obtain the temperature correction factor.

It can be understood that, in the process of controlling the temperature of the cookware by the cookware, some deviation always exists between the actual temperature value and the predicted temperature value of the cookware due to various reasons, and the deviation indicates that the controller is not accurate enough for predicting the temperature value of the cookware. In order to improve the accuracy of the controller for predicting the temperature value of the cookware, the predicted temperature value of the cookware needs to be continuously corrected. Therefore, the difference value of the actual temperature value and the predicted temperature value of the cookware in the current period is used as the temperature correction factor, the temperature correction factor is applied to the prediction process of the temperature value of the cookware in the next period after the current period, the accuracy of prediction of the temperature value of the cookware is improved, the controller can adjust the gear to be used by the cookware in the next period according to the accurate predicted temperature value of the cookware, and the accurate control of the temperature of the cookware is further realized.

And S1024, determining the predicted temperature value of each gear according to the real-time temperature value, the temperature change speed of each gear of the stove and the temperature correction factor.

Each gear has a default temperature change speed and is continuously changed along with the heating process of the cooker by the cooker. The temperature variation delta T of the cooker in the last period is the temperature variation speed corresponding to the gear used by the cooker in the last period.

The predicted temperature value for each gear may be determined according to the following equation (4):

T_q＝V_qXS + Delta equation (4)

Wherein, T_qPredicted temperature value, V, for the q-th gear_qIs the temperature change speed of the q-th gear. S is a cycle time, e.g. 3 seconds. And delta is a temperature correction factor.

Optionally, the predicted temperature value corresponding to each gear may be a temperature value that the cooker can reach when the cooker uses the gear at the last time in the next cycle after the current cycle.

The above embodiments mainly describe the situation that when the absolute value of the difference between the real-time temperature value and the target temperature value of the pot in the current period is smaller than the preset threshold, the controller controls the stove to enter the fine-tuning mode to realize the constant temperature control of the pot temperature. In some embodiments, if the absolute value of the difference between the real-time temperature value and the target temperature value of the pot in the current cycle is greater than the preset threshold, as shown in fig. 9, the control method further includes the following steps:

s201, if the real-time temperature value of the pot in the current period is larger than the target temperature value, and the difference value between the real-time temperature value and the target temperature value is larger than a preset threshold value, controlling the cooker to adjust the gear to the minimum gear.

It can be understood that, if the real-time temperature value of the pot in the current period is greater than the target temperature value, and the difference between the real-time temperature value and the target temperature value is greater than the preset threshold, it indicates that the real-time temperature value of the pot not only exceeds the target temperature value set by the user in the current period, but also exceeds a large range. In order to enable the real-time temperature value of the cooker to be close to the target temperature value set by a user, downshift treatment needs to be carried out on the cooker.

Optionally, the controller may control the cooker to adjust the gear to a minimum gear, for example, a P1 gear, so that the temperature value of the cooker is rapidly reduced to approach the target temperature value.

Wherein, causing the real-time temperature value of the cookware in the current period to be greatly higher than the target temperature value may include the following situations:

in case 1, as shown in fig. 10, in the process of cooking by using the cooking appliance, a user needs to use a high temperature (e.g., 210 ℃) to cook the food material at a high temperature in a certain stage, and after the food material is cooked at the high temperature for a certain period of time, the user needs to use a normal temperature (e.g., 100 ℃) to cook the food material at the normal temperature, so the user can select to click the "-" function icon displayed on the display of the cooking appliance, so as to reduce the target temperature value. Therefore, the real-time temperature value of the cookware in the current period is greatly higher than the target temperature value. For example, during cooking, the high gear can be selected for stir-frying with strong fire, and then the low gear can be selected for slow stewing with small fire, etc.

Situation 2, in the process of cooking food materials at high temperature by using a cooker, due to misoperation, a function icon on a display of the cooker is touched by mistake, so that a target temperature value is reduced, and the actual temperature value of the cooker in the current period is greatly higher than the target temperature value.

In some embodiments, when it is determined that the real-time temperature value of the pot in the current period is greater than the target temperature value and the difference between the real-time temperature value and the target temperature value is greater than the preset threshold value, the controller may send first prompt information to prompt the user that the real-time temperature value of the pot is substantially higher than the target temperature value, so as to avoid the problem that the cooking experience of the user is affected due to the rapid reduction of the temperature of the pot caused by the false touch of the user.

For example, the controller may issue the first prompt message in one or more of the following manners:

in the mode 1, the controller displays the first prompt message through the display.

For example, as shown in fig. 11, the content of the first prompt message displayed on the display may be "the current pot is at a higher temperature and a downshift process is to be performed". The controller may control the display to maintain the display of the first prompt information until a confirmation operation of the user is not received.

And in the mode 2, the controller plays the first prompt message through the voice prompt device.

For example, the content played by the voice prompt device may be "the current pot is at a higher temperature and will be downshifted", where the sound played by the voice prompt device may be a sound preset by a manufacturer of the cooking appliance, or may be various voice packets downloaded by a user to the cooking appliance through the internet.

Optionally, after receiving the confirmation operation of the user, the controller may control the voice prompt apparatus to stop playing the first prompt message.

S202, if the real-time temperature value of the pot in the current period is smaller than the target temperature value, and the absolute value of the difference value between the real-time temperature value and the target temperature value is larger than a preset threshold value, controlling the cooker to adjust the gear to the maximum gear.

It can be understood that, if the real-time temperature value of the pot in the current period is smaller than the target temperature value and the difference between the real-time temperature value and the target temperature value is greater than the preset threshold, it indicates that the real-time temperature value of the pot is not only lower than the target temperature value set by the user in the current period, but also the difference between the real-time temperature value and the target temperature value is large. In order to make the real-time temperature value of the cooker approach to the target temperature value set by the user, the cooker needs to be subjected to upshifting treatment.

Optionally, the controller may control the cooker to adjust the gear to a maximum gear, for example, a P8 gear, so that the temperature value of the cooker is rapidly increased to approach the target temperature value.

Wherein, causing the real-time temperature value of the pot in the current period to be greatly lower than the target temperature value may include the following situations:

in case 1, as shown in fig. 12, in the process of cooking by using the cooker, a user needs to cook the food at normal temperature by using normal temperature (for example, 100 ℃) at a certain stage, and after cooking the food at normal temperature for a certain period of time, the user needs to cook the food at high temperature by using high temperature (for example, 210 ℃), so that the user can select to click a temperature-raising icon displayed on a display of the cooker to raise a target temperature value. Therefore, the real-time temperature value of the cookware in the current period is greatly lower than the target temperature value. For example, in the process of cooking, the low gear is selected firstly to cook slowly with small fire, and the high gear is selected finally to collect juice with large fire.

In case 2, when a user uses the cooker to cook food at normal temperature, due to misoperation, the user touches a "+" function icon on a display of the cooker by mistake, so that a target temperature value is increased, and the actual temperature value of the cooker in the current period is greatly lower than the target temperature value.

In some embodiments, when it is determined that the real-time temperature value of the pot in the current period is smaller than the target temperature value and the difference value between the real-time temperature value and the target temperature value is greater than the preset threshold value, the controller may send second prompt information to prompt the user that the real-time temperature value of the pot is greatly lower than the target temperature value, so as to avoid the problem that the cooking experience of the user is affected due to the rapid temperature rise of the pot caused by the false touch control of the user.

For example, the controller may issue the second prompt message in one or more of the following manners:

in the mode 1, the controller displays the second prompt message through the display.

For example, as shown in fig. 13, the content of the second prompt message displayed on the display may be "the current pot is at a low temperature and will be shifted up. The controller may control the display to maintain the display of the second prompt information until the confirmation operation by the user is not received.

And in the mode 2, the controller plays the second prompt message through the voice prompt device.

For example, the content played by the voice prompt device may be "the current pot is at a low temperature and will be shifted up".

Optionally, after receiving the confirmation operation of the user, the controller may control the voice prompt apparatus to stop playing the second prompt message.

Based on the embodiment shown in fig. 9, the controller controls the cooker to perform up-shift processing or down-shift processing according to the magnitude relation between the real-time temperature value and the target temperature value of the cooker in the current period, so that the temperature value of the cooker is as fast as possible close to the target temperature value, the cooker is controlled to enter a fine-tuning mode, and accurate control over the temperature of the cooker is facilitated.

In some embodiments, the control method of the cooker provided by the embodiment of the application can also be applied to cookers with functions of executing intelligent recipes.

When the user uses the cooking utensils with the function of executing the intelligent menu, the user adds food materials in the pot and selects the menu to be executed by the cooking utensils, then the cooking utensils do not need to be operated, the menu of the user options is automatically executed by the cooking utensils, the food materials are cooked until the food materials are cooked, the user does not need to participate in the cooking process, the cooking difficulty of the user is reduced, and the cooking experience of the user is improved.

And after receiving the instruction of setting the menu by the user, the cooker responds to the instruction of setting the menu by the user and cooks the food according to the cooking flow indicated by the menu. In the cooking process of cooking the food materials according to the cooking flow indicated by the menu, the food materials can be cooked at different temperatures in different stages, the cooker can execute the control method of the cooker provided by the embodiment of the application, the temperature is accurately controlled in the different stages of cooking the food materials, the temperature in the cooker is accurately controlled, the cooking effect of the food materials is further guaranteed, and the user experience is favorably improved.

It can be seen that the foregoing describes the solution provided by the embodiments of the present application primarily from a methodological perspective. In order to implement the functions described above, the embodiments of the present application provide corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiment of the present application, the controller may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

As shown in fig. 14, the controller 3000 includes a processor 3001, and optionally, a memory 3002 and a communication interface 3003, which are connected to the processor 3001. The processor 3001, the memory 3002, and the communication interface 3003 are connected by a bus 3004.

The processor 3001 may be a Central Processing Unit (CPU), a general purpose processor Network Processor (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor 3001 may also be any other means having processing functionality such as a circuit, device, or software module. The processor 3001 may also include multiple CPUs, and the processor 3001 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores that process data (e.g., computer program instructions).

Memory 3002 may be a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, but is not limited to, electrically erasable programmable read-only memory (EEPROM), compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 3002 may be separate or integrated with the processor 3001. The memory 3002 may contain, among other things, computer program code. The processor 3001 is configured to execute the computer program code stored in the memory 3002, thereby implementing the control method provided by the embodiment of the present application.

Communication interface 3003 may be used to communicate with other devices or communication networks (e.g., ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), etc.). Communication interface 3003 may be a module, circuitry, transceiver, or any device capable of enabling communication.

The bus 3004 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus 3004 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 14, but this is not intended to represent only one bus or type of bus.

Embodiments of the present invention also provide a computer-readable storage medium, where the computer-readable storage medium includes computer-executable instructions, and when the computer-executable instructions are executed on a computer, the computer is caused to execute the method provided in the foregoing embodiments.

The embodiment of the present invention further provides a computer program product, which can be directly loaded into the memory and contains software codes, and after being loaded and executed by the computer, the computer program product can implement the method provided by the above embodiment.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other division ways in actual implementation. For example, various elements or components may be combined or may be integrated into another device, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A cooking utensil, characterized in that includes:

the temperature sensor is used for detecting the temperature value of the pot;

a controller connected to the temperature sensor, the controller configured to:

acquiring a real-time temperature value of the pot in a current period;

if the absolute value of the difference value between the real-time temperature value and the target temperature value is smaller than or equal to a preset threshold value, determining a predicted temperature value of each gear according to the real-time temperature value and the temperature change speed of each gear of the stove; the predicted temperature value of one gear is a temperature value which is predicted to be reached by the cooker when the cooker uses the gear in the next period of the current period;

and taking the gear corresponding to the minimum value in the absolute values of the difference values between the predicted temperature value and the target temperature value of each gear as the gear used by the cooker in the next period of the current period.

2. The hob according to claim 1, characterized in that the controller is configured to determine a predicted temperature value for each gear of the hob according to the real-time temperature value and a temperature change speed of each gear of the hob, in particular to perform the following steps:

and determining a predicted temperature value corresponding to each gear according to the real-time temperature value, the temperature change speed corresponding to each gear of the stove and the temperature correction factor.

3. The cooktop of claim 2, wherein the controller is further configured to:

acquiring temperature values of the cookware at each moment in N moments included in the last period of the current period, wherein N is a positive integer;

according to the temperature value of each moment in N moments included in the last period of the current period, determining the predicted temperature value of the pot in the current period;

and obtaining the temperature correction factor according to the predicted temperature value and the real-time temperature value of the pot in the current period.

4. The hob according to claim 3, wherein the controller is configured to derive the temperature correction factor according to the predicted temperature value and the real-time temperature value of the pot in the current period, and specifically perform the following steps:

and subtracting the predicted temperature value of the pot in the current period from the real-time temperature value to obtain the temperature correction factor.

5. The hob according to claim 3, characterized in that the controller is configured to determine the predicted temperature value of the pot in the current cycle from the temperature values at each of the N moments included in the previous cycle, in particular to perform the following steps:

according to the formula

Determining the temperature variation delta T of the previous period of the current period, wherein N is the number of moments included in the previous period of the current period, i is the ith moment in the N moments, and T_iA and f are constant values of the temperature at the moment i;

according to the formula

according to the formula T_p＝N×ΔT+ΔK+T_NDetermining the predicted temperature value T of the pot in the current period_pWherein, T_NThe temperature value is the temperature value at the last moment in the last period of the current period.

6. The cooktop of any of claims 1 to 4, wherein the controller is further configured to:

if the real-time temperature value of the cookware in the current period is greater than the target temperature value, and the absolute value of the difference between the real-time temperature value and the target temperature value is greater than the preset threshold value, controlling the cooker to adjust the gear to the minimum gear; alternatively, the first and second electrodes may be,

and if the real-time temperature value is smaller than the target temperature value and the absolute value of the difference between the real-time temperature value and the target temperature value is larger than the preset threshold value, controlling the stove to adjust the gear to the maximum gear.

7. A control method of a cooker is characterized by comprising the following steps:

acquiring a real-time temperature value of the pot in the current period;

8. The method of claim 7, wherein determining the predicted temperature value for each gear of the range from the real-time temperature value and the speed of temperature change for each gear of the range comprises:

9. The method of claim 8, further comprising:

according to the temperature value of each moment in the N moments included in the last period, determining the predicted temperature value of the pot in the current period;

10. The method of claim 9, wherein obtaining the temperature correction factor according to the predicted temperature value and the real-time temperature value of the pot in the current period comprises: