A cooking apparatus and a control method thereof

Abstract

The embodiment of the application discloses a kind of cooking equipment and its control method, it is related to cooking equipment technical field, for improving the preheating accuracy of cooking equipment to baking tray, the cooking equipment includes: equipment body;Baking tray;Temperature sensor;Controller is configured as: in the process that cooking equipment runs preheating program, the cumulative consumption energy value of cooking equipment, the energy coefficient of cooking equipment, the temperature rise threshold of cooking equipment, the energy coefficient of baking tray and the initial temperature value and current temperature value of cooking cavity are acquired by temperature sensor;In the case where the current temperature value of cooking cavity reaches preheating target temperature value, according to each parameter, the actual consumption energy value of cooking equipment and the actual consumption energy value of baking tray are determined;In the case where the cumulative consumption energy value of cooking equipment reaches the sum of the actual consumption energy value of cooking equipment and the actual consumption energy value of baking tray, control cooking equipment end running preheating program.

Description

Technical Field

[0001] This application relates to the field of cooking equipment technology, and in particular to a cooking device and its control method. Background Technology

[0002] As people's living standards improve, users' requirements for home cooking are also increasing. Smart recipes in conventional home cooking appliances typically include the name of the recipe and the corresponding cooking method. The control module in the cooking appliance uses data from various sensors and control algorithms to control the heating unit to cook the food.

[0003] In the existing technology, the baking tray of cooking equipment is mostly used to place cooking ingredients. After the cooking equipment is preheated, the baking tray and cooking ingredients are placed into the cooking equipment together. Some baking trays have a large mass and heat storage capacity. They are placed inside the cooking equipment during preheating. After preheating, they absorb heat. Users place food on the baking tray, which can cook food with a better bottom.

[0004] However, in this method, if a baking pan temperature sensor is set, it will restrict the placement of the baking pan. Moreover, if the temperature sensor is not in constant contact with the baking pan, it is difficult to accurately reflect the baking pan temperature in real time, which will cause the cooking equipment to fail to end the preheating program in time or end it prematurely, resulting in poor preheating effect. Summary of the Invention

[0005] This application provides a cooking device and its control method for improving the preheating accuracy of the cooking device on the baking pan.

[0006] To achieve the above objectives, this application adopts the following technical solution.

[0007] In a first aspect, embodiments of this application provide a cooking device, including: a device body having a cooking cavity for accommodating cooking ingredients; a baking pan for placing cooking ingredients; a temperature sensor for detecting the temperature value of the cooking cavity; and a controller configured to: during the preheating process of the cooking device, acquire the cumulative energy consumption value of the cooking device, the energy coefficient of the cooking device, the heating threshold of the cooking device, the energy coefficient of the baking pan, and acquire the initial temperature value and current temperature value of the cooking cavity through the temperature sensor; when the current temperature value of the cooking cavity reaches the preheating target temperature value, determine the actual energy consumption value of the cooking device based on the initial temperature value of the cooking cavity, the current temperature value, the heating threshold of the cooking device, and the energy coefficient of the cooking device; determine the actual energy consumption value of the baking pan based on the initial temperature value of the cooking cavity, the current temperature value, and the energy coefficient of the baking pan; and control the cooking device to end the preheating process when the cumulative energy consumption value of the cooking device reaches the sum of the actual energy consumption value of the cooking device and the actual energy consumption value of the baking pan.

[0008] The technical solution provided in this application provides at least the following beneficial effects: This technical solution eliminates the need for a temperature sensor on the baking pan. Instead, it uses a temperature sensor inside the cooking cavity to detect the initial and current temperatures. When the current temperature of the cooking cavity reaches the preheating target temperature, the actual energy consumption of the cooking equipment is determined based on the initial and current temperatures, the heating threshold of the cooking equipment, and the energy coefficient of the cooking equipment. Similarly, the actual energy consumption of the baking pan is determined based on the initial and current temperatures of the cooking cavity and the energy coefficient of the baking pan. By using different data, the actual energy consumption of the baking pan and the actual energy consumption of the cooking equipment are obtained separately, thereby accurately controlling the energy consumption of the baking pan. When the cumulative energy consumption of the cooking equipment reaches the sum of the actual energy consumption of the cooking equipment and the actual energy consumption of the baking pan, the cooking equipment is controlled to end the preheating program. This precise control of the preheating program makes the end time of the preheating program more reasonable and improves the preheating effect.

[0009] In some embodiments, the actual energy consumption of the cooking device is calculated in the following way:

[0010] Q0 = q * ln(1 - Δ / K)

[0011] Where Q0 is the actual energy consumption of the cooking equipment, q is the energy coefficient of the cooking equipment, which indicates the relationship between the temperature change of the cooking cavity and the energy consumption of the cooking equipment, Δ is the difference between the current temperature value and the initial temperature value of the cooking cavity, and K is the heating threshold of the cooking equipment.

[0012] In some embodiments, the actual energy consumption of the baking pan is calculated in the following way:

[0013] Q1 = C*(T0 - T1)

[0014] Where Q1 is the actual energy consumed by the baking pan, C is the energy coefficient of the baking pan, which is used to indicate the relationship between the temperature change of the cooking cavity and the energy consumed by the baking pan, T0 is the preheating target temperature, and T1 is the initial temperature of the cooking cavity.

[0015] In some embodiments, the controller is further configured to control the cooking device to end the preheating program when the current temperature value reaches the preheating target temperature value and the preheating time of the preheating program reaches the preset time.

[0016] In some embodiments, the cooking device further includes: a heating device for heating food ingredients; and a controller configured to: periodically acquire cooking parameters and acquire the temperature value of the cooking cavity via a temperature sensor during the execution of a cooking task by the cooking device; determine a predicted temperature value of the cooking device in a second cycle based on the temperature value of the cooking cavity in the current cycle and the cooking parameters in the current cycle, provided that the temperature value of the cooking cavity in the current cycle is within a first preset temperature range; wherein the cooking parameters in the current cycle include the operating mode of the cooking device and the heating duty cycle of the heating device in the current cycle, and the second cycle is the cycle following the current cycle; determine the heating duty cycle of the heating device in the second cycle based on the predicted temperature value of the second cycle, the operating mode of the cooking device, and the target cooking temperature value of the cooking task; and control the operation of the heating device based on the heating duty cycle of the heating device in the second cycle.

[0017] Secondly, embodiments of this application provide a control method for a cooking device, the method comprising: during the preheating process of the cooking device, acquiring the cumulative energy consumption value of the cooking device, the energy coefficient of the cooking device, the heating threshold of the cooking device, the energy coefficient of the baking pan, and acquiring the initial temperature value and current temperature value of the cooking cavity through a temperature sensor; when the current temperature value of the cooking cavity reaches the preheating target temperature value, determining the actual energy consumption value of the cooking device based on the initial temperature value of the cooking cavity, the current temperature value, the heating threshold of the cooking device, and the energy coefficient of the cooking device; determining the actual energy consumption value of the baking pan based on the initial temperature value of the cooking cavity, the current temperature value, and the energy coefficient of the baking pan; and controlling the cooking device to end the preheating process when the cumulative energy consumption value of the cooking device reaches the sum of the actual energy consumption value of the cooking device and the actual energy consumption value of the baking pan.

[0018] Thirdly, embodiments of this application provide a controller, including: one or more processors; one or more memories; wherein the one or more memories are used to store computer program code, the computer program code including computer instructions, and when the one or more processors execute the computer instructions, the controller executes the control method of any of the cooking devices provided in the second aspect.

[0019] Fourthly, embodiments of this application provide a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform the methods provided in the second aspect and possible implementations.

[0020] Fifthly, embodiments of the present invention provide a computer program product that can be directly loaded into a memory and contains software code. After being loaded and executed by a computer, the computer program product can implement the methods provided in the second aspect and possible implementations.

[0021] It should be noted that the aforementioned computer instructions may be stored, in whole or in part, on a computer-readable storage medium. This computer-readable storage medium may be packaged together with the controller's processor or may be packaged separately from the controller's processor; this application does not impose any limitations on this.

[0022] The beneficial effects described in aspects two through five of this application can be referred to the analysis of the beneficial effects of aspect one, and will not be repeated here. Attached Figure Description

[0023] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0024] Figure 1 A hardware structure block diagram of a cooking device provided in an embodiment of this application;

[0025] Figure 2 A schematic block diagram of a cooking device provided in an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the internal interaction of a cooking device provided in an embodiment of this application;

[0027] Figure 4 A hardware configuration block diagram of a cooking device provided in an embodiment of this application;

[0028] Figure 5 This is a schematic flowchart of a control method for a cooking device provided in an embodiment of this application;

[0029] Figure 6 This is a schematic flowchart of another control method for a cooking device provided in an embodiment of this application;

[0030] Figure 7 This is a schematic flowchart of another control method for a cooking device provided in an embodiment of this application;

[0031] Figure 8 This is a schematic flowchart of another control method for a cooking device provided in an embodiment of this application;

[0032] Figure 9 A temperature rise curve of the cooking cavity provided in an embodiment of this application;

[0033] Figure 10 This is a schematic flowchart of another control method for a cooking device provided in an embodiment of this application;

[0034] Figure 11A temperature variation curve of the cooking cavity provided in this application embodiment;

[0035] Figure 12 Another temperature variation curve of the cooking cavity provided in this application embodiment;

[0036] Figure 13 A graph showing the variation of temperature values ​​and temperature changes is provided in an embodiment of this application.

[0037] Figure 14 This is a schematic diagram of the structure of a control device for a cooking apparatus provided in an embodiment of this application;

[0038] Figure 15 This is a schematic diagram of the structure of a control device for another cooking apparatus provided in an embodiment of this application. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0041] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0043] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0044] To facilitate understanding, we will first provide a brief introduction and explanation of some terms or basic concepts of technology involved in the embodiments of the present invention.

[0045] As mentioned above, traditional temperature control methods cannot accurately preheat the baking pan.

[0046] Based on this, this application provides a cooking device, including: a device body having a cooking cavity for accommodating cooking ingredients; a baking pan for placing cooking ingredients; a temperature sensor for detecting the temperature value of the cooking cavity; and a controller configured to: during the preheating process of the cooking device, acquire the cumulative energy consumption value of the cooking device, the energy coefficient of the cooking device, the heating threshold of the cooking device, the energy coefficient of the baking pan, and acquire the initial and current temperature values ​​of the cooking cavity through the temperature sensor; when the current temperature value of the cooking cavity reaches the preheating target temperature value, determine the actual energy consumption value of the cooking device based on the initial temperature value of the cooking cavity, the current temperature value, the heating threshold of the cooking device, and the energy coefficient of the cooking device; determine the actual energy consumption value of the baking pan based on the initial temperature value of the cooking cavity, the current temperature value, and the energy coefficient of the baking pan; and control the cooking device to end the preheating process when the cumulative energy consumption value of the cooking device reaches the sum of the actual energy consumption value of the cooking device and the actual energy consumption value of the baking pan.

[0047] In this way, the cooking equipment can precisely preheat the baking pan, making the end time of the preheating process more reasonable and improving the preheating effect.

[0048] The embodiments provided in this application will now be described in detail with reference to the accompanying drawings.

[0049] Figure 1 A hardware structure block diagram of a cooking device provided in an embodiment of this application, such as... Figure 1 As shown, the cooking device 1 may include a controller 2 and a memory 3.

[0050] In some embodiments, the cooking device 1 may be an oven, a steam oven, a baking machine, or other possible devices. This application does not limit the type of cooking device 1.

[0051] In some embodiments, the controller 2 and the memory 3 are electrically connected directly or indirectly to enable data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines.

[0052] In some embodiments, the cooking device 1 includes at least one software module that can be stored in the memory 3 in the form of software or firmware or embedded in the operating system (OS) of the cooking device 1.

[0053] In some embodiments, the controller 2 is used to execute executable modules stored in the memory 3, such as software function modules and computer programs included in the cooking device 1, to implement the control method of the cooking device.

[0054] In some embodiments, the controller 2 can execute a computer program after receiving an execution instruction. The controller 2 can be an integrated circuit chip with signal processing capabilities.

[0055] In some embodiments, the controller 2 may also be a general-purpose processor, such as a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a discrete gate or transistor logic device, or a discrete hardware component, which can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. In addition, the general-purpose processor may be a microprocessor or any conventional processor, etc.

[0056] In some embodiments, memory 3 may be, but is not limited to, random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), and electrically erasable programmable read-only memory (EEPROM).

[0057] In some embodiments, the memory 3 is used to store a program, which the controller 2 executes upon receiving an execution instruction.

[0058] In the embodiments shown in this application, controller 2 refers to a device that can generate operation control signals according to instruction opcodes and timing signals, instructing cooking equipment 1 to execute control commands. Exemplarily, controller 2 can be a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a programmable logic device (PLD), or any combination thereof. Controller 2 can also be other devices with processing functions, such as circuits, devices, or software modules; this application does not impose any limitations on this.

[0059] In addition, the controller 2 can be used to control the various components inside the cooking device 1 so that each component can perform the predetermined functions of the cooking device 1.

[0060] Figure 2 A schematic block diagram of a cooking device provided in an embodiment of this application is shown, such as... Figure 2 As shown, the cooking device 1 includes: a device body 11, a cooking cavity 12, a baking pan 13, and a temperature sensor 14. Figure 2 (not shown in the image) and the human-computer interaction interface 15.

[0061] In some embodiments, the device body 11 has a cooking cavity for accommodating cooking ingredients.

[0062] In some embodiments, the cooking cavity 12 is used to hold cooking ingredients.

[0063] In some embodiments, the baking tray 13 is used to place cooking ingredients.

[0064] In some embodiments, the baking tray 13 is placed on a shelf ( Figure 2 (not shown in the image), the shelves can have multiple layers, and this application does not limit the number of shelves.

[0065] In some embodiments, the temperature sensor 14 may be installed inside the upper side of the cooking cavity, above the highest position where the baking pan can be placed, to detect the temperature value inside the cooking cavity.

[0066] In some embodiments, the temperature sensor 14 can periodically provide feedback on the temperature value inside the cooking cavity at a preset duration, such as providing a temperature value every 1 second or every 4 seconds.

[0067] In some embodiments, the human-computer interaction interface 15 is used by the user to select cooking instructions and view cooking parameters.

[0068] In some embodiments, the cooking apparatus 1 may further include a heating device 16. Figure 2 (Not shown in the image).

[0069] In some embodiments, the heating device 16 is used to heat cooking ingredients.

[0070] In some embodiments, the heating device 16 may be an infrared heating tube, a resistance heating tube, a graphene heating tube, a carbon fiber heating tube, etc., and the heating device 16 may be arranged in the upper part, lower part, or back of the cooking cavity.

[0071] In some embodiments, the heating device 16 further includes a convection fan.

[0072] Figure 3 This is a schematic diagram of the internal interaction of a cooking device provided in an embodiment of this application, such as... Figure 3 As shown, the user inputs cooking instructions or selects a cooking program on the human-computer interaction interface 15. The human-computer interaction interface 15 sends the cooking instructions or cooking program selected by the user to the heating device 16. The heating device 16 starts heating the cooking cavity 12 and the baking pan 13 inside the cooking cavity 12. The temperature sensor 14 periodically detects the temperature value of the cooking cavity at a preset time and feeds back the detected temperature value to the human-computer interaction interface 15.

[0073] Figure 4 This is a hardware configuration block diagram of the cooking device 1 provided in this application according to an exemplary embodiment. Figure 4 As shown, the cooking device 1 may also include a communication interface 1001.

[0074] In some embodiments, the communication interface 1001 is used to establish communication connections with other network entities, such as establishing communication connections with terminal devices. The communication interface 1001 may include a radio frequency (RF) module, a cellular module, a wireless fidelity (WIFI) module, and a GPS module, etc. Taking an RF module as an example, the RF module can be used for signal reception and transmission; specifically, it sends received information to the controller 2 for processing; additionally, it transmits signals generated by the controller 2. Typically, the RF circuit may include, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier (LNA), a duplexer, etc.

[0075] Those skilled in the art will understand that Figure 4 The hardware structure shown does not constitute a limitation on the cooking device 1. The cooking device 1 may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0076] Figure 5This is a schematic flowchart of a control method for a cooking device provided in an embodiment of this application, as shown below. Figure 5 As shown, the method includes the following steps:

[0077] S101. During the preheating process of the cooking equipment, the controller acquires the cumulative energy consumption value of the cooking equipment, the energy coefficient of the cooking equipment, the heating threshold of the cooking equipment, the energy coefficient of the baking pan, and the initial and current temperature values ​​of the cooking cavity.

[0078] Optionally, the controller can obtain the initial and current temperature values ​​of the cooking cavity through a temperature sensor.

[0079] In some embodiments, the temperature sensor can sense the temperature inside the cooking cavity and convert it into a usable output signal, which is then sent to the controller.

[0080] It should be noted that the temperature value can be in degrees Celsius, represented by the symbol ℃, or in Kelvin, represented by the symbol K. This application does not limit the unit of temperature.

[0081] In the embodiments of this application, for ease of description, the temperature unit is described below as degrees Celsius (°C).

[0082] It should be noted that the product of the total power output of the cooking equipment since it is powered on and the energy conversion rate is the cumulative energy consumption value of the cooking equipment. The rated energy consumption value is usually divided into two parts and supplied to the cooking equipment and the baking pan respectively. However, in actual implementation, due to the dispersion and absorption of energy, the rated energy consumption value of the cooking equipment cannot be exactly the sum of the actual energy consumption value of the baking pan and the actual energy consumption value of the cooking equipment.

[0083] In some embodiments, the energy coefficient of the cooking device is used to indicate the relationship between the temperature change of the cooking cavity and the energy consumed by the cooking device, the heating threshold of the cooking device is the maximum temperature that can be reached in the cooking cavity, and the energy coefficient of the baking pan is used to indicate the relationship between the temperature change of the cooking cavity and the energy consumed by the baking pan.

[0084] It should be noted that the heating threshold of cooking equipment is usually related to the heating element capacity in the heating device, while the energy coefficient of cooking equipment is usually related to the characteristics of the cooking equipment itself. For a certain model of cooking equipment, the heating threshold and the energy coefficient of the cooking equipment are approximately the same.

[0085] In some embodiments, the cooking cavity typically needs to be preheated before the cooking device begins to perform a cooking task.

[0086] For example, a user can select a smart recipe they want to cook on a human-computer interaction interface, and the cooking device can then perform the cooking task recorded in the recipe.

[0087] The smart recipe can include the preheating target temperature and default preheating time for the cooking mode corresponding to the cooking task. Alternatively, users can directly set the preheating target temperature and default preheating time on the human-computer interaction interface.

[0088] Furthermore, after the user makes the selection, the cooking device can first enter the preheating program before executing the cooking task recorded in the recipe (the preheating time of the preheating program is not included in the set time). The purpose of running the preheating program is to heat the baking pan to the preheating target temperature value.

[0089] S102. When the current temperature of the cooking cavity reaches the preheating target temperature, the controller determines the actual energy consumption of the cooking equipment based on the initial temperature of the cooking cavity, the current temperature, the heating threshold of the cooking equipment, and the energy coefficient of the cooking equipment.

[0090] In some embodiments, the temperature rise from the initial temperature value to the current temperature value in the cooking cavity is Δ = K(1-e) -Q 0 / q), therefore, the actual energy consumption of the cooking equipment is calculated as follows, as shown in formula (1):

[0091] Q0=q*ln(1-Δ / K) Formula (1)

[0092] Where Q0 is the actual energy consumption of the cooking equipment, q is the energy coefficient of the cooking equipment, Δ is the difference between the current temperature and the initial temperature of the cooking cavity, and K is the heating threshold of the cooking equipment.

[0093] In some embodiments, if the heating capacity of the heating device of the cooking equipment is strong, the value of Δ / K is less than 0.1. In this case, Q0 can be considered as q*(1-Δ / K) to improve calculation efficiency.

[0094] S103. The controller determines the actual energy consumption of the baking pan based on the initial temperature value of the cooking cavity, the current temperature value, and the energy coefficient of the baking pan.

[0095] In some embodiments, the actual energy consumption of the baking pan is calculated as shown in formula (2):

[0096] Q1=C*(T0-T1) Formula (2)

[0097] Where Q1 is the actual energy consumed by the baking pan, C is the energy coefficient of the baking pan, T0 is the preheating target temperature, and T1 is the initial temperature of the cooking cavity.

[0098] It should be noted that the initial temperature of the cooking cavity is usually close to the ambient temperature, which is detected by an ambient temperature sensor, for example, 25°C.

[0099] S104. When the cumulative energy consumption of the cooking equipment reaches the sum of the actual energy consumption of the cooking equipment and the actual energy consumption of the baking pan, the controller will terminate the preheating program.

[0100] In some embodiments, when the cumulative energy consumption of the cooking equipment reaches the sum of the actual energy consumption of the cooking equipment and the actual energy consumption of the baking pan, it indicates that the energy intake of the baking pan and the cooking equipment is sufficient. At this time, the controller controls the cooking equipment to end the preheating program.

[0101] In some embodiments, when the cumulative energy consumption of the cooking equipment does not reach the sum of the actual energy consumption of the cooking equipment and the actual energy consumption of the baking pan, it indicates that the energy intake of the baking pan and the cooking equipment is insufficient. In this case, the controller controls the cooking equipment to continue running the preheating program.

[0102] The technical solution provided in this application provides at least the following beneficial effects: This technical solution eliminates the need for a temperature sensor on the baking pan. Instead, it uses a temperature sensor inside the cooking cavity to detect the initial and current temperatures. When the current temperature of the cooking cavity reaches the preheating target temperature, the actual energy consumption of the cooking equipment is determined based on the initial and current temperatures, the heating threshold of the cooking equipment, and the energy coefficient of the cooking equipment. Similarly, the actual energy consumption of the baking pan is determined based on the initial and current temperatures of the cooking cavity and the energy coefficient of the baking pan. By using different data, the actual energy consumption of the baking pan and the actual energy consumption of the cooking equipment are obtained separately, thereby accurately controlling the energy consumption of the baking pan. When the cumulative energy consumption of the cooking equipment reaches the sum of the actual energy consumption of the cooking equipment and the actual energy consumption of the baking pan, the cooking equipment is controlled to end the preheating program. This precise control of the preheating program makes the end time of the preheating program more reasonable and improves the preheating effect.

[0103] In some embodiments, when the current temperature reaches the preheating target temperature and the preheating time of the preheating program reaches the preset time, the cooking device is controlled to end the preheating program.

[0104] In some embodiments, the preset time is a times the default preheating time of the preheating program, where a is a preset value. The value of a may vary for different cooking appliances and is determined through multiple tests.

[0105] Specifically, when the current temperature reaches the target preheating temperature and the preheating time of the preheating program reaches a*default preheating time, the cooking device is controlled to end the preheating program.

[0106] In some embodiments, after the preheating process is completed, the cooking device prompts the user to place the cooking ingredients into the baking pan, and the cooking device starts the cooking task. At this time, the controller controls the heating device to cook the ingredients by using the temperature value of the cooking chamber. Figure 6 This is a schematic flowchart of a control method for another cooking device provided in an embodiment of this application, used to control the heating device to cook the ingredients, such as... Figure 6 As shown, the method includes the following steps:

[0107] S201. When the cooking equipment is performing a cooking task, the controller periodically acquires cooking parameters and the temperature value of the cooking chamber at a preset duration.

[0108] In some embodiments, the controller can obtain the temperature value for the current cycle through a temperature sensor.

[0109] It should be noted that the preset duration is set and stored in the cooking equipment manufacturer's memory. Different cooking equipment manufacturers may set different preset durations, which may be as short as one second. The duration of one cycle may be as short as half a minute, one minute, etc. This application does not limit this.

[0110] In some embodiments, cooking parameters include the operating mode of the cooking equipment and the heating duty cycle of the heating device.

[0111] S202. When the temperature value of the cooking chamber in the current cycle is within the first preset temperature range, the controller determines the predicted temperature value of the cooking device in the second cycle based on the temperature value of the current cycle and the cooking parameters of the current cycle.

[0112] The cooking parameters for the current cycle include the operating mode of the cooking equipment and the heating duty cycle of the heating device in the current cycle. The second cycle is the cycle following the current cycle.

[0113] It should be noted that the first preset temperature range is preset and stored in the memory by the cooking equipment manufacturer. Different cooking equipment manufacturers set different first preset temperature ranges, and this application does not limit this.

[0114] In some embodiments, the upper limit of the first preset temperature range is greater than the target temperature value, and the lower limit of the first preset temperature range is less than the target temperature value. The target temperature value can be set by the user or a modified user-set temperature value.

[0115] For example, the first preset range can be [m, n].

[0116] In some embodiments, the controller can determine the maximum temperature value, heating coefficient, and cooling coefficient corresponding to the current operating mode based on the operating mode of the cooking equipment.

[0117] Furthermore, the controller determines the predicted temperature value of the cooking equipment in the second cycle based on the temperature value of the current cycle, the maximum temperature value of the heating duty cycle of the heating device in the current cycle, the heating coefficient, and the cooling coefficient.

[0118] The heating coefficient is used to characterize the heating capacity of the cooking equipment in the current operating mode, while the cooling coefficient is used to characterize the heat dissipation capacity of the cooking equipment in the current operating mode.

[0119] It should be noted that for the same cooking equipment, the maximum temperature, heating coefficient, and cooling coefficient will differ under different operating modes.

[0120] Furthermore, different cooking appliances may have the same or different maximum temperature, heating coefficient, and cooling coefficient under the same operating mode. In other words, the maximum temperature, heating coefficient, and cooling coefficient are related to the cooking appliance itself.

[0121] In some embodiments, the predicted temperature value of the cooking device in the second cycle can be calculated as shown in formula (3):

[0122] T' n+1 =T n +(K1-T n )*a*D n *100+(T n -K2)*b*(1-D n )*100 formula (3)

[0123] Among them, T' n+1 T is the predicted temperature value for the cooking equipment in the second cycle. n K1 is the temperature value for the current cycle, a is the maximum temperature value under the current operating mode, and D is the temperature rise coefficient. n K2 represents the heating duty cycle of the heating device in the current cycle, and K2 represents the normal temperature value (usually within the temperature range [20℃, 25℃]).

[0124] For example, assume the normal temperature value K2 is 20℃, the maximum temperature value K1 in the current operating mode is 400℃, a is 0.0003, b is 0.00002, and the heating duty cycle D of the heating device in the current cycle is... n The current cycle temperature value T obtained in step S101 is 50%. n If the temperature is 190℃, then T' n+1=190+(400-190)×0.0003×50%+(190-20)×0.00002×(1-50%)=193.32℃.

[0125] In some embodiments, for calculating T' n+1 The heating coefficient can be the initial value or the correction value of the heating coefficient.

[0126] Optionally, the correction value for the heating coefficient can be the initial value of the heating coefficient and the weighted average of the heating coefficients of each heating cycle prior to the current heating cycle.

[0127] The heating cycle refers to the heating cycle in which the temperature value is less than the lower limit of the first preset temperature range. The heating coefficient of the heating cycle is calculated as shown in formula (4):

[0128] a=Δ T1 / (KT t1 ) Formula (4)

[0129] Where, Δ T1 T is the difference between the temperature value of this heating cycle and the temperature value of the previous heating cycle. t1 This indicates the temperature value for that heating cycle.

[0130] In some embodiments, for calculating T' n+1 The cooling coefficient can be the initial value of the cooling coefficient or the correction value of the cooling coefficient.

[0131] Optionally, the correction value for the cooling coefficient can be the initial value of the cooling coefficient and the weighted average of the cooling coefficients of each cooling cycle prior to the current heating cycle.

[0132] The cooling cycle refers to the heating cycle in which the temperature value is greater than the upper limit of the first preset temperature range. The cooling coefficient of the cooling cycle is calculated as shown in formula (5):

[0133] b = Δ T2 / (T t2 -K2) Formula (5)

[0134] Where, Δ T2 T is the difference between the temperature value of the previous heating cycle and the temperature value of the current cooling cycle. t2 This indicates the temperature value during the cooling cycle.

[0135] S203. The controller determines the heating duty cycle of the heating device in the second cycle based on the predicted temperature value of the second cycle, the operating mode of the cooking equipment, and the target cooking temperature value of the cooking task.

[0136] In some embodiments, the controller can determine the heating duty cycle of the heating device in the second cycle based on the maximum temperature value corresponding to the current operating mode of the cooking device, the target cooking temperature value, the predicted temperature value in the second cycle, the heating coefficient, and the cooling coefficient.

[0137] In some embodiments, the heating duty cycle D of the heating device in the second cycle n+1 The following relationship must be satisfied:

[0138]

[0139] Among them, D' n+1 The predicted heating duty cycle for the heating device in the second cycle.

[0140] In some embodiments, the predicted heating duty cycle D' of the heating device in the second cycle n+1 The satisfied relationship is shown in formula (6):

[0141] T' c =T' n+1 +(K1-T' n+1 )*a*D' n+1 *100+(T' n+1 -K2)*b*(1-D' n+1 ) Formula (6)

[0142] Among them, T' c This is the target cooking temperature for the second cycle.

[0143] For example, assuming the normal temperature value K2 is 20℃, the maximum temperature value K1 in the current operating mode is 400℃, and the target cooking temperature value for the second cycle is T' c 200℃, a = 0.0003, b = 0.00002, the predicted temperature value T' for the second cycle is obtained in step S202. n+1 The temperature is 193.32℃. Therefore, according to formula (6), D' can be calculated. n+1 Approximately 119%.

[0144] S204. The controller controls the operation of the heating device based on the heating duty cycle of the heating device in the second cycle.

[0145] Steps S201-S204 described above can bring at least the following beneficial effects: By acquiring the temperature value obtained by the temperature sensor in the current cycle, determining the range of the current temperature value, and determining the heating duty cycle of the cooking device in the second cycle, the temperature inside the cooking device is kept constant near the user-set target temperature, and the temperature of the cooked food fluctuates within a very small range, thus improving the cooking quality of the food.

[0146] In some embodiments, because the temperature value detected by the temperature sensor is inconsistent with the actual temperature value inside the cooking cavity, the arrival of the temperature value detected by the temperature sensor at the user-set temperature value does not necessarily mean that the cooking cavity has reached the user-set temperature value. This will affect the cooking effect of the cooking device.

[0147] Therefore, to eliminate the error between the temperature value detected by the temperature sensor and the actual temperature value inside the cooking cavity, the correspondence between the temperature value detected by the temperature sensor and the actual temperature value inside the cooking cavity can be obtained under a test environment. Based on this correspondence, the temperature value detected by the temperature sensor can be corrected. Figure 7 This is a schematic flowchart of a control method for another cooking device provided in an embodiment of this application, used to correct the temperature value detected by the temperature sensor, such as... Figure 7 As shown, the method includes the following steps:

[0148] S301, The controller obtains the set cooking temperature value.

[0149] The cooking temperature is set to the temperature that the user expects the cooking cavity to maintain.

[0150] For example, if the user expects the cooking cavity to maintain a temperature of 200°C, then the cooking temperature is set to 200°C.

[0151] S302. The controller determines whether the set cooking temperature value exists in the temperature value correspondence table.

[0152] The temperature value correspondence table is used to record multiple cooking temperature values ​​and multiple detection temperature values. Each cooking temperature value corresponds to one detection temperature value. The cooking temperature value is the temperature value inside the cooking cavity, and the detection temperature value is the temperature value detected by the temperature sensor.

[0153] It should be noted that since the temperature sensor may be installed anywhere inside the cooking cavity, the temperature value detected by the temperature sensor may not be the temperature at the center of the cooking cavity. In the case where the temperature value detected by the temperature sensor is not the temperature value at the center of the cooking cavity, the temperature at the center of the cooking cavity can be found by referring to the correspondence between the temperature value detected by the temperature sensor and the temperature value at the center of the cooking cavity.

[0154] Optionally, the correspondence between the cooking temperature value and the detection temperature value can be referred to Table 1 below. Of course, the cooking temperature value may be greater than or less than the detection temperature value. Table 1 takes the cooking temperature value being greater than the detection temperature value as an example.

[0155] Table 1

[0156] Cooking temperature value Temperature value …… …… 240℃ 222℃ 220℃ 201℃ 200℃ 188℃ 180℃ 176℃ …… ……

[0157] S303. If the set cooking temperature value exists in the temperature value correspondence table, the controller finds the detection temperature value corresponding to the set cooking temperature value from the temperature value correspondence table, and uses the detection temperature value corresponding to the set cooking temperature value as the cooking target temperature value.

[0158] Referring to Table 1, let's take a cooking temperature of 220℃ as an example. This cooking temperature value exists in the temperature value mapping table. The corresponding detection temperature value is found to be 201℃. Then, 201℃ is used as the target cooking temperature value T'. c .

[0159] S304. If the set cooking temperature value does not exist in the temperature value correspondence table, the controller determines the cooking target temperature value based on the first cooking temperature value, the second cooking temperature value, the first detection temperature value, and the second detection temperature value.

[0160] The first cooking temperature value and the second cooking temperature value are adjacent in the temperature value correspondence table, and the cooking temperature value is set to be between the first cooking temperature value and the second cooking temperature value; the first detection temperature value has a corresponding relationship with the first cooking temperature value in the temperature value correspondence table, and the second detection temperature value has a corresponding relationship with the second cooking temperature value in the temperature value correspondence table.

[0161] In some embodiments, the target cooking temperature value T' c It also satisfies the following relationship, as shown in formula (7):

[0162]

[0163] Among them, T u T is the first cooking temperature value. d The second cooking temperature value, T' u The first detected temperature value, T' d This is the second temperature value detected.

[0164] For example, referring to Table 1, assuming the set cooking temperature is 230℃, this set cooking temperature does not exist in the temperature value correspondence table. The first cooking temperature value is found to be 220℃, and the second cooking temperature value is 240℃. Then, the corresponding first detection temperature value 01℃ and second detection temperature value 222℃ are found. After calculation, the target cooking temperature value T' can be obtained. c The integer value is 222℃.

[0165] Steps S301-S304 described above provide at least the following benefits: After obtaining the set cooking temperature value, the target temperature inside the cooking cavity is obtained based on the correspondence between the set cooking temperature value and the temperature value detected by the sensor. This eliminates errors caused by inaccurate values ​​collected by the temperature sensor, making the cooking temperature more precise.

[0166] In some embodiments, for any operating mode of the cooking device, the cooking device may undergo a series of testing processes before leaving the factory to determine the maximum temperature value of that operating mode, and the maximum temperature value corresponding to that operating mode may be pre-configured in the controller of the cooking device before leaving the factory. Figure 8 This is a schematic flowchart of a control method for another cooking device provided in an embodiment of this application, used to determine the maximum temperature value of the operating mode, such as... Figure 8 As shown, the method includes the following steps:

[0167] S401 The controller controls the cooking equipment to operate in the target operating mode with a heating duty cycle of 100%, and periodically collects the temperature value of the cooking cavity of the cooking equipment until the temperature value inside the cooking cavity of the cooking equipment tends to stabilize.

[0168] The temperature value of the cooking cavity of the cooking device is collected periodically, and the duration of the period can be preset, for example, it can be set to 3 seconds.

[0169] It should be noted that the temperature inside the cooking cavity of the cooking equipment tends to be stable because the cooking equipment has heat dissipation elements. When the heating duty cycle is 100%, heat dissipation and heating tend to be balanced, so that the temperature inside the cooking cavity can be approximately regarded as stable.

[0170] S402: The controller fits the heating curve of the cooking equipment in the target operating mode based on the multiple temperature values ​​collected.

[0171] For example, Figure 9 The heating curve fitted by the cooking equipment under the target operating mode is given. It can be seen that the temperature inside the cooking equipment gradually increases with time. After reaching 200℃, the slope of the curve becomes significantly smaller.

[0172] In other words, the temperature change value is constantly decreasing, so it can be inferred that the temperature inside the cooking device may remain constant at a certain temperature over time.

[0173] S403 The controller performs limit processing on the heating curve to obtain the maximum temperature value of the cooking equipment in the target operating mode.

[0174] For example, for Figure 9The heating curve is subjected to limit processing. When the cooking equipment is in the target operating mode, the temperature is constant at around 400℃ as time approaches infinity. Therefore, the maximum temperature value corresponding to the cooking equipment in the target operating mode is determined to be 400℃.

[0175] The above steps S401-S403 bring at least the following beneficial effects: Under the test environment, the maximum temperature value of the cooking equipment in each mode is obtained, so that the cooking equipment can more accurately predict the temperature of the next cycle when it is working, and thus obtain the heating duty cycle of the next cycle. In this way, the temperature fluctuation of the cooking equipment is small during cooking, and the cooking effect of the food is better.

[0176] In some embodiments, for any operating mode of the cooking device, the initial values ​​of the heating coefficient and cooling coefficient corresponding to that operating mode can be pre-configured before the device leaves the factory. Figure 10 This is a schematic flowchart of a control method for another cooking device provided in an embodiment of this application, used to obtain the initial values ​​of the heating coefficient and the cooling coefficient corresponding to the target operating mode, such as... Figure 10 As shown, it includes the following steps:

[0177] S501 The controller controls the cooking equipment to operate in the target operating mode with a preset heating duty cycle, and periodically collects the temperature value of the cooking cavity of the cooking equipment until the temperature value in the cooking cavity of the cooking equipment tends to stabilize.

[0178] Similarly, the temperature value of the cooking cavity of the cooking device is collected periodically, and the duration of the period can be preset, for example, it can be set to 3 seconds.

[0179] For example, the duty cycle of the third heating element can be 30%. Figure 11 The curve showing the temperature change within the cooking cavity of the cooking equipment over heating time when operating at a 30% heating duty cycle is provided, such as... Figure 11 As shown, when operating with a heating duty cycle of 30%, the slope begins to decrease at around 150℃, and the temperature stabilizes around 220℃. Figure 12 From Figure 11 A small segment extracted from the text, such as Figure 12 As shown, the cooking equipment operates at a heating duty cycle of 30%, exhibiting an approximately linear relationship in the short term.

[0180] S502: The controller determines the temperature value and temperature change value for each heating cycle based on the multiple temperature values ​​collected.

[0181] The temperature change in one heating cycle is equal to the difference between the temperature in that heating cycle and the temperature in the previous heating cycle.

[0182] For example, if the temperature in the nth period is 150℃ and the temperature in the (n+1)th period is 153℃, then the temperature change in the (n+1)th period is 3℃.

[0183] S503: The controller fits a first-order curve based on the temperature value and temperature change value of each heating cycle to obtain the expression of the temperature value-temperature change value curve.

[0184] Figure 13 Provide the temperature values ​​and temperature change curves for each cycle, such as... Figure 13 As shown, the expression can be obtained as Y = -0.0113X + 2.742.

[0185] S504. The controller determines the initial values ​​of the heating coefficient and the cooling coefficient based on the expression of the temperature value-temperature change curve.

[0186] The slope C is -0.0113 and the constant D is 2.742, obtained from the curve Y = -0.0113X + 2.742, which shows the temperature change value as a function of temperature.

[0187] In some embodiments, the heating coefficient α is calculated as shown in formula (8):

[0188]

[0189] In some embodiments, the cooling coefficient b is calculated as shown in formula (9):

[0190]

[0191] For example, assuming the normal temperature is 20℃ and the maximum temperature K is 400℃, the heating coefficient a can be calculated to be approximately 0.0003 and the cooling coefficient b to be approximately 0.0000328.

[0192] The steps S501-S504 described above provide at least the following beneficial effects: Under test conditions, the heating coefficient and cooling coefficient of the cooking equipment in each mode are obtained. This allows the cooking equipment to more accurately predict the temperature of the next cycle during operation, thereby obtaining the heating duty cycle for the next cycle. Consequently, the temperature fluctuation of the cooking equipment is smaller during cooking, resulting in better food cooking effects.

[0193] In this embodiment of the invention, electronic products can be divided into functional modules according to the above method examples. For example, each function can be divided into its own functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0194] When dividing each function into modules according to its corresponding function. Figure 14 This is a schematic diagram of the structure of a control device for a cooking apparatus provided in an embodiment of this application, as shown below. Figure 14 As shown, the control device 200 of the cooking equipment may include: an acquisition module 201, a determination module 202, and a control module 203.

[0195] In some embodiments, the acquisition module 201 is used to acquire the cumulative energy consumption value of the cooking device, the energy coefficient of the cooking device, the heating threshold of the cooking device, the energy coefficient of the baking pan, and the initial temperature value and current temperature value of the cooking cavity through a temperature sensor during the preheating process of the cooking device.

[0196] In some embodiments, the determining module 202 is used to determine the actual energy consumption of the cooking device based on the initial temperature value of the cooking cavity, the current temperature value, the heating threshold of the cooking device, and the energy coefficient of the cooking device when the current temperature value of the cooking cavity reaches the preheating target temperature value.

[0197] In some embodiments, the determining module 202 is further configured to determine the actual energy consumption of the baking pan based on the initial temperature value of the cooking cavity, the current temperature value, and the energy coefficient of the baking pan.

[0198] In some embodiments, the control module 203 is configured to control the cooking device to end the preheating process when the cumulative energy consumption of the cooking device reaches the sum of the actual energy consumption of the cooking device and the actual energy consumption of the baking pan.

[0199] In some embodiments, the control module 203 is further configured to control the cooking device to end the preheating program when the current temperature value reaches the preheating target temperature value and the preheating time of the preheating program reaches the preset time.

[0200] In some embodiments, the acquisition module 201 is further configured to acquire cooking parameters periodically for a preset duration and acquire the temperature value of the cooking cavity through a temperature sensor during the cooking process of the cooking device performing a cooking task.

[0201] In some embodiments, the determining module 202 is further configured to determine the predicted temperature value of the cooking device in the second cycle based on the temperature value of the current cycle and the cooking parameters in the current cycle, provided that the temperature value of the cooking cavity in the current cycle is within a first preset temperature range.

[0202] In some embodiments, the determining module 202 is further configured to determine the heating duty cycle of the heating device in the second cycle based on the predicted temperature value of the second cycle, the operating mode of the cooking device, and the target cooking temperature value of the cooking task.

[0203] In some embodiments, the control module 203 is also used to control the operation of the heating device based on the heating duty cycle of the heating device in the second cycle.

[0204] When using integrated units, Figure 15 A schematic diagram of another possible structure of the control device for the cooking equipment involved in the above embodiments is shown. For example... Figure 15 As shown, the control device 200 of the cooking equipment may further include: a storage module 204, a communication module 205, and a processing module 206. The communication module 205 can be used to support communication between the control device of the cooking equipment and other entities. The storage module 204 is used to store the program code and data of the control device of the cooking equipment.

[0205] In some embodiments, processing module 206 may be a processor or a controller. Storage module 204 may be a memory. Communication module 205 may be a transceiver, transceiver circuit, or communication interface, etc.

[0206] In this configuration, when the processing module 206 is a processor, the storage module 204 is a memory, and the communication module 205 is a transceiver, the processor, transceiver, and memory can be connected via a bus. The bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc.

[0207] This invention also provides a computer-readable storage medium including computer-executable instructions that, when executed on a computer, cause the computer to perform the method provided in the above embodiments.

[0208] This invention also provides a computer program product that can be directly loaded into a memory and contains software code. After being loaded and executed by a computer, the computer program product can implement the methods provided in the above embodiments.

[0209] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in this invention can be implemented using hardware, software, firmware, or any combination thereof. When implemented in software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium accessible to a general-purpose or special-purpose computer.

[0210] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0211] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely exemplary; for instance, the division of modules or units is only a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed between each other may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. Units described as separate components may or may not be physically separate; components shown as units may be one physical unit or multiple physical units, i.e., they may be located in one place or distributed in multiple different places. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0212] Furthermore, the functional units in the various embodiments of this invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0213] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cooking device, characterized in that, include: The main body of the device has a cooking cavity for holding cooking ingredients; A baking tray for holding the cooking ingredients; A temperature sensor is used to detect the temperature value of the cooking cavity; The controller is configured as follows: During the preheating process of the cooking equipment, the cumulative energy consumption of the cooking equipment, the energy coefficient of the cooking equipment, the heating threshold of the cooking equipment, the energy coefficient of the baking pan, and the initial and current temperature values ​​of the cooking cavity are obtained through the temperature sensor. When the current temperature of the cooking cavity reaches the preheating target temperature, the actual energy consumption of the cooking equipment is determined based on the initial temperature of the cooking cavity, the current temperature, the heating threshold of the cooking equipment, and the energy coefficient of the cooking equipment. The actual energy consumption of the baking pan is determined based on the initial temperature value and current temperature value of the cooking cavity and the energy coefficient of the baking pan. When the cumulative energy consumption of the cooking equipment reaches the sum of the actual energy consumption of the cooking equipment and the actual energy consumption of the baking pan, the cooking equipment is controlled to end the preheating program.

2. The cooking apparatus according to claim 1, characterized in that, The actual energy consumption of the cooking equipment is calculated in the following way: Q0 = q * ln(1 - Δ / K) Wherein, Q0 is the actual energy consumption value of the cooking device, q is the energy coefficient of the cooking device, used to indicate the relationship between the temperature change of the cooking cavity and the energy consumption value of the cooking device, Δ is the difference between the current temperature value of the cooking cavity and the initial temperature value, and K is the heating threshold of the cooking device.

3. The cooking apparatus according to claim 1, characterized in that, The actual energy consumption of the baking pan is calculated in the following way: Q1 = C*(T0 - T1) Wherein, Q1 is the actual energy consumption value of the baking pan, C is the energy coefficient of the baking pan, used to indicate the relationship between the temperature change of the cooking cavity and the energy consumption value of the baking pan, T0 is the preheating target temperature value, and T1 is the initial temperature value of the cooking cavity.

4. The cooking apparatus according to claim 1, characterized in that, The controller is also configured to: When the current temperature reaches the target preheating temperature and the preheating time of the preheating program reaches the preset time, the cooking device is controlled to end the preheating program.

5. The cooking apparatus according to claim 1, characterized in that, The cooking equipment also includes: A heating device used to heat cooking ingredients; The controller is also configured to: During the cooking process, the cooking equipment acquires cooking parameters periodically over a preset time period and obtains the temperature value of the cooking cavity through the temperature sensor. Given that the temperature of the cooking cavity in the current cycle is within a first preset temperature range, the predicted temperature of the cooking device in the second cycle is determined based on the temperature of the current cycle and the cooking parameters in the current cycle; wherein, the cooking parameters in the current cycle include the operating mode of the cooking device and the heating duty cycle of the heating device in the current cycle, and the second cycle is the cycle following the current cycle; Based on the predicted temperature value of the second cycle, the operating mode of the cooking equipment, and the target cooking temperature value of the cooking task, the heating duty cycle of the heating device in the second cycle is determined. The operation of the heating device is controlled based on the heating duty cycle of the heating device in the second cycle.

6. A method for controlling a cooking device, characterized in that, The method includes: During the preheating process of the cooking equipment, the cumulative energy consumption of the cooking equipment, the energy coefficient of the cooking equipment, the heating threshold of the cooking equipment, the energy coefficient of the baking pan, and the initial and current temperatures of the cooking cavity are obtained. When the current temperature of the cooking cavity reaches the preheating target temperature, the actual energy consumption of the cooking equipment is determined based on the initial temperature of the cooking cavity, the current temperature, the heating threshold of the cooking equipment, and the energy coefficient of the cooking equipment. The actual energy consumption of the baking pan is determined based on the initial temperature value and current temperature value of the cooking cavity and the energy coefficient of the baking pan. When the cumulative energy consumption of the cooking equipment reaches the sum of the actual energy consumption of the cooking equipment and the actual energy consumption of the baking pan, the cooking equipment is controlled to end the preheating program.

7. The method according to claim 6, characterized in that, The actual energy consumption of the cooking equipment is calculated in the following way: Q0 = q * ln(1 - Δ / K) Wherein, Q0 is the actual energy consumption value of the cooking device, q is the energy coefficient of the cooking device, used to indicate the relationship between the temperature change of the cooking cavity and the energy consumption value of the cooking device, Δ is the difference between the current temperature value of the cooking cavity and the initial temperature value, and K is the heating threshold of the cooking device.

8. The method according to claim 6, characterized in that, The actual energy consumption of the baking pan is calculated in the following way: Q1 = C*(T0 - T1) Wherein, Q1 is the actual energy consumption value of the baking pan, C is the energy coefficient of the baking pan, used to indicate the relationship between the temperature change of the cooking cavity and the energy consumption value of the baking pan, T0 is the preheating target temperature value, and T1 is the initial temperature value of the cooking cavity.

9. The method according to claim 6, characterized in that, The method further includes: When the current temperature reaches the target preheating temperature and the preheating time of the preheating program reaches the preset time, the cooking device is controlled to end the preheating program.

10. The method according to claim 9, characterized in that, The method further includes: During the cooking process, the cooking equipment acquires cooking parameters and the temperature value of the cooking cavity periodically for a preset duration. Given that the temperature of the cooking cavity in the current cycle is within a first preset temperature range, the predicted temperature of the cooking device in the second cycle is determined based on the temperature of the current cycle and the cooking parameters in the current cycle; wherein, the cooking parameters in the current cycle include the operating mode of the cooking device and the heating duty cycle of the heating device in the current cycle, and the second cycle is the cycle following the current cycle; Based on the predicted temperature value of the second cycle, the operating mode of the cooking equipment, and the target cooking temperature value of the cooking task, the heating duty cycle of the heating device in the second cycle is determined. The operation of the heating device is controlled based on the heating duty cycle of the heating device in the second cycle.

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