Temperature control methods, electronic devices, readable storage media, and cooking equipment

Abstract

This invention relates to the field of kitchen appliance technology, specifically providing a temperature control method, electronic device, readable storage medium, and cooking equipment, aiming to solve the problem of how to quickly and stably raise the temperature to a target temperature. To this end, the temperature control method of this invention includes: during the heating phase, determining a full-load stop point based on the target temperature and an overshoot fitting coefficient, and stopping heating after the temperature inside the cooking equipment reaches the full-load stop point; after the heating phase ends, adjusting the temperature inside the equipment based on a PID algorithm. This method, based on the target temperature and the overshoot fitting coefficient, effectively solves the problem in existing technologies where cooking equipment struggles to quickly and stably raise the temperature to the target temperature; and it enables precise heating while saving energy and control costs.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, specifically providing a temperature control method, an electronic device, a readable storage medium, and a cooking device. Background Technology

[0002] As living standards improve, cooking appliances with heating elements, such as ovens and steam ovens, are being used more and more widely to meet diverse food cooking needs.

[0003] However, while existing ovens and steam ovens can generally achieve the desired cooking temperature, they are prone to temperature overshoot during preheating and other heating processes, leading to overheating and partially burning food before reaching the set temperature. Furthermore, current temperature control technologies often suffer from insufficient edge heating to prevent the center from burning. In addition, existing temperature control technologies typically employ PID (Proportional, Integral, Differential) algorithms, which, while accurate, suffer from slow heating. Therefore, how to quickly and stably heat the food to the target temperature has become a pressing problem to be solved.

[0004] Accordingly, a new temperature control solution is needed in this field to address the aforementioned problems. Summary of the Invention

[0005] To overcome the above-mentioned shortcomings, the present invention is proposed, providing a temperature control method, an electronic device, a readable storage medium, and a cooking device to solve, or at least partially solve, the problem of how to rapidly and stably raise the temperature to a target temperature.

[0006] In a first aspect, the present invention provides a temperature control method applied to a cooking device, the cooking device comprising a housing and a heating element disposed within the housing, comprising:

[0007] During the heating phase, the full-opening stop point is determined based on the target temperature and the overshoot fitting coefficient, and heating is stopped after the temperature inside the cooking equipment reaches the full-opening stop point.

[0008] After the heating phase is completed, the temperature inside the chamber is adjusted based on the PID algorithm.

[0009] In one technical solution of the above temperature control method, the method further includes:

[0010] During the heating phase, the heating element is turned on based on a preset heating mode and heated at the maximum power of the heating element. The heating mode includes a rapid heating mode and a non-rapid heating mode.

[0011] If the heating mode is a rapid heating mode, the preset rapid heating element combination will be activated for heating; if the heating mode is a non-rapid heating mode, the user-defined heating element combination will be activated for heating.

[0012] In one technical solution of the above temperature control method, determining the full-opening stop point based on the target temperature and the overshoot fitting coefficient includes:

[0013] Determine whether the target temperature and the overshoot fitting coefficient satisfy the preset relationship;

[0014] If the conditions are met, the target temperature will be used as the stop point for full opening.

[0015] If the conditions are not met, the full-open stop point is obtained based on the target temperature and the overshoot fitting coefficient.

[0016] In one technical solution of the above temperature control method, obtaining the full-open stop point based on the target temperature and the overshoot fitting coefficient includes:

[0017] Acquire at least three sets of historical heating data, including historical full-load stop points and historical overshoot;

[0018] The historical heating data were linearly fitted using the least squares method to obtain the overshoot fitting coefficients.

[0019] Based on the overshoot fitting coefficient, the target temperature, and the preset desired overshoot amount, the full-open stop point is obtained.

[0020] In one technical solution of the above temperature control method, the heating mode includes a rapid heating mode and a non-rapid heating mode. The step of obtaining the full-scale stop point based on the overshoot fitting coefficient, the target temperature, and the preset desired overshoot amount further includes:

[0021] Historical heating data is obtained based on the heating mode in order to obtain the corresponding overshoot fitting coefficient;

[0022] And / or,

[0023] The desired overshoot is obtained based on the heating mode;

[0024] If the rapid heating mode is used during the heating phase, the desired overshoot is the preset value m, where m>0;

[0025] If a non-rapid heating mode is used during the heating phase, the desired overshoot is 0.

[0026] In one technical solution of the above temperature control method, the method further includes:

[0027] The heating mode based on the heating phase selectively enters the transition phase;

[0028] If the rapid heating mode is used during the heating phase, then the transition phase begins, during which the heating element is not turned on.

[0029] If a non-rapid heating mode is used during the heating phase, the transition phase will not begin.

[0030] In one technical solution of the above temperature control method, after entering the transition stage, it also includes:

[0031] The adjustment point is obtained based on the target temperature;

[0032] Determine whether the temperature inside the chamber has reached the adjustment point; if so, the transition phase ends.

[0033] In a second aspect, an electronic device is provided, comprising a processor and a memory, the memory being adapted to store a plurality of program codes, the program codes being adapted to be loaded and executed by the processor to perform the temperature control method described in any of the above-described temperature control methods.

[0034] In a third aspect, a computer-readable storage medium is provided, wherein a plurality of program codes are stored, the program codes being adapted to be loaded and run by a processor to perform the temperature control method described in any of the above-described temperature control methods.

[0035] In a fourth aspect, a cooking device is provided, the cooking device body including a housing and a heating element disposed within the housing, the cooking device including the cooking device body and the aforementioned electronic equipment.

[0036] The present invention comprises one or more of the following technical solutions:

[0037] Beneficial effects:

[0038] In implementing the technical solution of this invention, the full-open stop point is determined based on the target temperature and the overshoot fitting coefficient, and heating is stopped after the temperature inside the cooking equipment reaches the full-open stop point. This effectively solves the problem that cooking equipment in the prior art is difficult to quickly and stably heat up to the target temperature. After the heating stage is completed, the temperature inside the chamber is adjusted based on the PID algorithm, which can achieve precise heating while saving energy consumption and control costs. Attached Figure Description

[0039] The disclosure of this invention will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. Furthermore, similar numbers in the drawings are used to denote similar components, wherein:

[0040] Figure 1 This is a flowchart of the main steps of a temperature control method according to an embodiment of the present invention;

[0041] Figure 2 This is a detailed flowchart of the temperature control method of the present invention corresponding to obtaining the full-open stop point;

[0042] Figure 3 This is a detailed flowchart of the temperature control method according to another embodiment of the present invention;

[0043] Figure 4 This is a main structural block diagram of an electronic device used to perform the temperature control method of the present invention. Detailed Implementation

[0044] Some embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0045] In the description of this invention, "module" and "processor" can include hardware, software, or a combination of both. A module can include hardware circuitry, various suitable sensors, communication ports, memory, and may also include software components, such as program code, or a combination of software and hardware. A processor can be a central processing unit, microprocessor, image processor, digital signal processor, or any other suitable processor. The processor has data and / or signal processing capabilities. The processor can be implemented in software, in hardware, or a combination of both. Non-transitory computer-readable storage media includes any suitable medium capable of storing program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, etc. The term "A and / or B" means all possible combinations of A and B, such as only A, only B, or A and B. The terms "at least one A or B" or "at least one of A and B" have a similar meaning to "A and / or B" and can include only A, only B, or A and B. The singular terms "a" or "this" can also include plural forms.

[0046] This invention provides a temperature control method. (See attached document.) Figure 1 , Figure 1 This is a flowchart of the main steps of a temperature control method according to an embodiment of the present invention.

[0047] In some embodiments, the temperature control method is applied to a cooking device, which includes a housing and a heating element disposed within the housing. Exemplarily, the cooking device may be an oven, a steam oven, a microwave-oven combination appliance, a microwave-steam-oven combination appliance, an integrated stove oven, or other cooking appliances.

[0048] like Figure 1 As shown, the temperature control method in this embodiment of the invention mainly includes the following steps S11-S12.

[0049] Step S11: During the heating phase, the full-open stop point is determined based on the target temperature and the overshoot fitting coefficient, and heating is stopped after the temperature inside the cooking equipment reaches the full-open stop point.

[0050] Step S12: After the heating stage ends, the temperature inside the chamber is adjusted based on the PID algorithm.

[0051] The following will use an oven as an example to specifically describe the embodiments of the present invention.

[0052] When using cooking appliances such as ovens, users typically set the desired target temperature according to their cooking needs. The corresponding heating element combination that is activated is the user-set heating element combination. In practice, the user-set heating element combination can be preset differently depending on the specific cooking appliance and the target temperature. Furthermore, users can also directly select the cooking program corresponding to the recipe on the control panel; each cooking program has a preset target temperature.

[0053] To achieve better cooking results, the oven typically needs to be preheated before it can steadily heat to the user-set target temperature. To ensure a rapid temperature rise, this preheating phase does not use a PID algorithm; instead, the heating elements operate at maximum power, i.e., fully open. Depending on the heating rate, the preheating mode can be divided into a rapid heating mode and a non-rapid heating mode. Users need to select the heating mode and set the target temperature before starting cooking.

[0054] In practice, the time it takes for users to place food varies depending on the heating mode selected. In non-rapid heating mode, fewer heating elements are activated, resulting in a slower heating rate and reducing the risk of overheating and burning. Therefore, food can be placed in the oven before preheating, and the oven door doesn't need to be opened again before stable heating. However, this mode is time-consuming. In rapid heating mode, more heating elements are activated, resulting in a faster heating rate. However, this mode can cause the oven's center temperature to become too high during heating, leading to food burning. Therefore, the oven needs to be preheated empty before placing food in. Consequently, the oven door needs to be opened again before stable heating, which can cause significant temperature fluctuations. Because the number of activated heating elements, the heating speed, and the need to open the door before stable heating all differ, rapid heating and non-rapid heating modes require different control methods and temperature compensation mechanisms.

[0055] In one embodiment, the method further includes:

[0056] During the heating phase, the heating element is turned on based on a preset heating mode and heated at the maximum power of the heating element. The heating mode includes a rapid heating mode and a non-rapid heating mode.

[0057] If the heating mode is a rapid heating mode, the preset rapid heating element combination will be activated for heating; if the heating mode is a non-rapid heating mode, the user-defined heating element combination will be activated for heating.

[0058] The rapid heating mode uses a combination of rapid heating tubes with a higher heating rate than the stable heating process, while the non-rapid heating mode uses the same user-configured combination of heating tubes as the stable heating process.

[0059] For example, in one embodiment of the oven, the oven body includes heating tubes in different positions such as an upper inner heating tube, an upper outer heating tube, a lower heating tube, and a back heating tube; in one embodiment of the present invention, the temperature control device inside the oven body also includes a circulating fan.

[0060] Specifically, in this embodiment, the rapid heating element combination is a combination of activating the upper inner heating element, the lower heating element, and the circulating fan; the user-configured heating element combination is a combination of activating the back heating element and the circulating fan. In other embodiments of the present invention, the rapid heating element combination and the user-configured heating element combination can be used in other combinations according to actual needs, and are not limited to the settings in the above embodiments.

[0061] During the heating phase, in order to ensure the efficiency of preheating the steam oven, regardless of whether the rapid heating mode or the non-rapid heating mode is used, the heating element is always turned on at maximum power with a duty cycle of 1, i.e., fully open. When the temperature inside the oven reaches the full-open stop point, the heating element stops heating, and the full-open operation of the heating element ends, further initiating the subsequent temperature control process.

[0062] In the heating stage of this embodiment, if the rapid heating mode is used, the upper inner heating tube and the lower heating tube will operate at maximum power; if the non-rapid heating mode is used, the back heating tube will operate at maximum power.

[0063] Optionally, in one embodiment, determining the full-opening stop point based on the target temperature and the overshoot fitting coefficient includes:

[0064] Determine whether the target temperature and the overshoot fitting coefficient satisfy the preset relationship;

[0065] If the conditions are met, the target temperature will be used as the stop point for full opening.

[0066] If the conditions are not met, the full-open stop point is obtained based on the target temperature and the overshoot fitting coefficient.

[0067] In one embodiment, let the target temperature be T. set If the overshoot fitting coefficients are a and b, then determine whether the target temperature and the overshoot fitting coefficients satisfy the following relationship (1):

[0068]

[0069] Specifically, in this embodiment, the process of obtaining the full-open stop point based on the target temperature and overshoot fitting coefficient is detailed in the appendix. Figure 2 . Figure 2 This is a detailed flowchart of the temperature control method of the present invention corresponding to obtaining the full-open stop point.

[0070] like Figure 2 As shown, the temperature control method of the present invention, corresponding to obtaining the full-open stop point, includes the following steps S21-S23.

[0071] Step S21: Obtain at least three sets of historical heating data, including historical full-load stop points and historical overshoot.

[0072] For example, historical heating data of the oven at full-load stop points of 100℃, 150℃, and 200℃ are obtained. The temperatures at which the oven overshoots due to temperature field inertia are observed and recorded, for example, 10℃, 8℃, and 6℃ respectively. Overshoot is a common phenomenon in temperature control; after heating stops, the temperature continues to rise due to heating inertia. The difference between the peak temperature and the temperature at which heating stops is the overshoot temperature. By considering overshoot and correcting the full-load stop point during the heating phase, the heating process can reach the target temperature more smoothly, avoiding excessively high temperatures before stable heating.

[0073] Therefore, the historical heating data is recorded as follows: when the historical full-open stop point is 100, the historical overshoot is 10; when the historical full-open stop point is 150, the historical overshoot is 8; and when the historical full-open stop point is 200, the historical overshoot is 10.

[0074] The historical heating data described above are merely examples and do not constitute a limitation of the present invention. Historical heating data is not limited to combinations of data at 100°C, 150°C, and 200°C. Those skilled in the art can obtain heating data at other temperatures as needed, and may also obtain three or more sets of historical heating data as required.

[0075] Step S22: Linearly fit the historical heating data using the least squares method to obtain the overshoot fitting coefficient.

[0076] Least squares method for parameter solving is a common mathematical analysis method capable of fitting complex parameter variables without being affected by the distribution of sampling points. It can seek the best-fit curve and its parameter values ​​based on known data points, and further determine other unknown data points based on the best-fit curve. In this embodiment, the parameter values ​​of the best-fit curve are the overshoot fitting coefficients a and b.

[0077] Let X be the full-open stop point and Y be the overshoot. The linear fitting satisfies the following relationship (2):

[0078] Y = a × X + b (2)

[0079] Among them, the obtained overshoot fitting coefficient 'a' is the slope and 'b' is the intercept.

[0080] Substitute the corresponding historical full-open stop point and historical overshoot into the full-open stop point X and overshoot Y in the above relation (2) respectively, and perform linear fitting to obtain the overshoot fitting coefficients a and b.

[0081] Furthermore, in one embodiment, the method further includes: acquiring historical heating data based on the heating mode to obtain the corresponding overshoot fitting coefficient.

[0082] This involves acquiring historical heating data for both rapid heating and non-rapid heating modes, performing linear fitting to obtain overshoot fitting coefficients for both modes, and then using these coefficients for overshoot fitting of the corresponding heating modes. Since the fitted curves may differ significantly between different heating modes, obtaining the corresponding overshoot fitting coefficients allows for more accurate determination of the full-opening stop point.

[0083] The above fitting process is merely an example and does not constitute a limitation of the present invention. Historical heating data used for linear fitting can be selected according to actual needs. The closer the historical heating data used is to the actual temperature range in cooking, the more accurate the overshoot fitting coefficients will be.

[0084] In other embodiments, linear fitting can be performed based on three or more sets of historical heating data to obtain more accurate overshoot fitting coefficients a and b. The aforementioned historical heating data can be test data before shipment or actual usage data collected after shipment.

[0085] Step S23: Based on the overshoot fitting coefficient, the target temperature, and the preset desired overshoot amount, obtain the full-open stop point.

[0086] Let the full-open stop point X, and the overshoot Y simultaneously satisfy the following relationship:

[0087] Y = a × X + b (2)

[0088] Y = T set +T os -X (3)

[0089] Among them, T set T is the target temperature preset by the user. os This is the preset desired overshoot amount.

[0090] By combining equations (2) and (3), the full-open stopping point can be obtained through equation transformation:

[0091]

[0092] As shown in equation (4), the target temperature T can be determined based on the overshoot fitting coefficients a and b. set And the preset desired overshoot T os Obtain the fully open stop point X.

[0093] Furthermore, in one embodiment, the method further includes: acquiring historical heating data based on the heating mode to obtain the corresponding overshoot fitting coefficient.

[0094] In one embodiment, the method further includes: obtaining a preset desired overshoot amount based on the heating mode;

[0095] If the rapid heating mode is used during the heating phase, the desired overshoot is the preset value m, where m>0;

[0096] If a non-rapid heating mode is used during the heating phase, the desired overshoot is 0.

[0097] For example, in one embodiment, if a rapid heating mode is used during the heating phase, the preset value m is 20°C, i.e., the desired overshoot T is... os =20; If a non-rapid heating mode is used during the heating phase, the desired overshoot T is... os =0. In other embodiments of the present invention, the preset value m can also be set to other reasonable values ​​depending on the specific circumstances. This is because the desired overshoot T is preset in both rapid heating mode and non-rapid heating mode. os All of these have been pre-written into the code and can be directly called when obtaining the full-opening stop point, which can be obtained based on the heating mode.

[0098] In addition, the overshoot cutoff value can be calculated using this model.

[0099] Let Y = 0 in relation (1), then This indicates that there will be no overshoot with this heating element combination. At this point, the full-open stop point is equal to the target temperature, meaning that heating can be stopped once the target temperature is reached.

[0100] Therefore, before obtaining the full-open stop point, the target temperature is first determined to be T. set Do the overshoot fitting coefficients a and b satisfy the following relationship (1):

[0101]

[0102] If the conditions are met, the target temperature is taken as the full-opening stop point, and the heating stage can be completed by heating to the target temperature. There is no need to calculate the full-opening stop point again.

[0103] After the above steps are completed, the full opening stop point is obtained; based on the preset heating mode, the heating tube is heated to the maximum power until the temperature inside the chamber reaches the full opening stop point, and then the heating stage ends.

[0104] Instead of using PID control during the heating phase, the system finds a precise stopping point for heating, thereby saving energy and control costs while rapidly heating up.

[0105] After step S11 is completed, step S12 is executed. After the heating stage is completed, the temperature inside the chamber is adjusted based on the PID algorithm.

[0106] After the oven preheats, it typically needs to heat continuously for a period of time based on the user-selected cooking program or target temperature. During this period, a PID algorithm is used to control the output power of the heating element by controlling the output coefficients of the proportional, integral, and derivative terms, thus precisely regulating the temperature inside the cooking appliance. Specifically, adjusting the proportional gain Kp, integral gain Ki, and derivative gain Kd allows the control system to automatically and quickly make accurate corrections.

[0107] In one embodiment, before adjusting the temperature inside the chamber based on the PID algorithm, a transition phase can be selectively entered. The method further includes:

[0108] The heating mode based on the heating phase selectively enters the transition phase;

[0109] If the rapid heating mode is used during the heating phase, then the transition phase begins, during which the heating element is not turned on.

[0110] If a non-rapid heating mode is used during the heating phase, the transition phase will not begin.

[0111] Furthermore, in this embodiment, after entering the transition phase, the following is also included:

[0112] The adjustment point is obtained based on the target temperature;

[0113] Determine whether the temperature inside the chamber has reached the adjustment point; if so, the transition phase ends.

[0114] For example, the adjustment point is set to the target temperature plus 1°C. The transition phase can be achieved by repeatedly detecting or monitoring the temperature inside the chamber in real time. When the temperature inside the chamber drops to the adjustment point, the transition phase ends; if the temperature inside the chamber does not reach the adjustment point, the transition phase without turning on the heating element continues. In other embodiments, the adjustment point can also be set to other temperature values ​​close to the target temperature, not limited to the target temperature plus 1°C in the example.

[0115] Because the rapid heating mode aims to compensate for heat loss caused by opening the door to add food, the internal temperature remains high after the heating phase. If the internal temperature is directly adjusted using a PID algorithm at this point, the adjustment time is long and inefficient. Therefore, a transition phase where the heating element is not activated is included to allow the internal temperature to quickly approach the target level after the heating phase. The non-rapid heating mode does not have this problem. Therefore, if the non-rapid heating phase is used, there is no need for a transition phase, and the internal temperature can be directly adjusted using a PID algorithm.

[0116] Based on the above steps S11-S12, the full-open stop point is determined based on the target temperature and the overshoot fitting coefficient. Heating is stopped after the temperature inside the cooking equipment reaches the full-open stop point, which effectively solves the problem that cooking equipment in the prior art is difficult to quickly and stably heat up to the target temperature. After the heating stage is over, the temperature inside the chamber is adjusted based on the PID algorithm, which can achieve precise heating while saving energy consumption and control costs.

[0117] Furthermore, the present invention also provides another embodiment, please refer to [link to embodiment]. Figure 3 .

[0118] Figure 3 This is a detailed flowchart of a temperature control method according to another embodiment of the present invention. The method mainly includes the following steps S300-S330.

[0119] Step S300, Initialization Phase. In the initialization phase, parameters that do not need to be saved are initialized.

[0120] Step S310, Heating Stage. The heating element is activated based on the preset heating mode. If the heating mode is a rapid heating mode, the preset rapid heating element combination is activated for heating; if the heating mode is a non-rapid heating mode, the user-defined heating element combination is activated for heating.

[0121] Step S311: Determine whether the temperature inside the chamber has reached the full-opening stop point. If yes, proceed to step S312; otherwise, continue to step S310.

[0122] Furthermore, based on the target temperature T set The overshoot fitting coefficients a and b are used to obtain the full-open stopping point.

[0123] For example, the full-open stop point Among them, T os This is the preset desired overshoot amount.

[0124] Step S312: Determine whether to use rapid heating mode. If yes, proceed to step S320; otherwise, proceed to step S330. After the heating stage ends, adjust the temperature inside the chamber based on the PID algorithm, without needing to enter the transition stage.

[0125] Step S320, Transition Phase. During the transition phase, the heating element is not turned on so that the temperature inside the chamber quickly approaches the preset target temperature after the heating phase ends.

[0126] Step S321: Determine if the adjustment point has been reached. If yes, the heating stage ends, and step S330 is executed to adjust the temperature inside the chamber based on the PID algorithm; otherwise, return to continue executing step S320.

[0127] For example, the temperature at the adjustment point is the preset target temperature plus 1°C.

[0128] It should be noted that although the steps in the above embodiments are described in a specific order, those skilled in the art will understand that in order to achieve the effects of the present invention, different steps do not necessarily have to be executed in such an order. They can be executed simultaneously (in parallel) or in other orders, and these variations are all within the scope of protection of the present invention.

[0129] Those skilled in the art will understand that all or part of the processes in the method of the above embodiment of the present invention can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable storage medium can include any entity or device capable of carrying the computer program code, a medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory, a random access memory, an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc. It should be noted that the content included in the computer-readable storage medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable storage medium does not include electrical carrier signals and telecommunication signals.

[0130] Furthermore, the present invention also provides an electronic device. Please refer to the appendix. Figure 4 , Figure 4 This is a main structural block diagram of an electronic device used to perform the temperature control method of the present invention.

[0131] like Figure 4As shown, in one embodiment of an electronic device according to the present invention, the electronic device includes a processor 401 and a memory 402. The memory 402 may be configured to store program code 403 for executing the temperature control method of the above-described method embodiments. The processor 401 may be configured to execute the program code 403 in the memory 402. The program code 403 includes, but is not limited to, program code 403 for executing the temperature control method of the above-described method embodiments. For ease of explanation, only the parts related to the embodiments of the present invention are shown. For specific technical details not disclosed, please refer to the method section of the embodiments of the present invention.

[0132] Furthermore, the present invention also provides a computer-readable storage medium. In one embodiment of the computer-readable storage medium according to the present invention, the computer-readable storage medium can be configured to store a program that performs the temperature control method of the above-described method embodiments, the program being loaded and run by a processor to implement the above-described temperature control method. For ease of explanation, only the parts related to the embodiments of the present invention are shown; for specific technical details not disclosed, please refer to the method section of the embodiments of the present invention. The computer-readable storage medium can be a storage device comprising various electronic devices; optionally, in the embodiments of the present invention, the computer-readable storage medium is a non-transitory computer-readable storage medium.

[0133] Furthermore, the present invention also provides a cooking device, the main body of which includes a housing and a heating element disposed within the housing. The cooking device includes the main body and the aforementioned electronic equipment. Exemplarily, the cooking device may be an oven, a steam oven, a microwave-oven combination appliance, a microwave-steam-oven combination appliance, an integrated stove oven, or other cooking appliances.

[0134] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0135] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A temperature control method applied to a cooking device, the cooking device comprising a housing and a heating element disposed within the housing, characterized in that, include: During the heating phase, the full-opening stop point is determined based on the target temperature and the overshoot fitting coefficient, and heating is stopped after the temperature inside the cooking equipment reaches the full-opening stop point. After the heating phase is completed, the temperature inside the chamber is adjusted based on the PID algorithm; The step of determining the full-opening stop point based on the target temperature and the overshoot fitting coefficient includes: Determine whether the target temperature and the overshoot fitting coefficient satisfy the preset relationship; If the conditions are met, the target temperature will be used as the stop point for full opening. If the conditions are not met, the full-open stop point is obtained based on the target temperature and the overshoot fitting coefficient. The step of obtaining the full-open stop point based on the target temperature and overshoot fitting coefficient includes: Acquire at least three sets of historical heating data, including historical full-load stop points and historical overshoot; The historical heating data were linearly fitted using the least squares method to obtain the overshoot fitting coefficients. Based on the overshoot fitting coefficient, the target temperature, and the preset desired overshoot amount, the full-open stop point is obtained; The step of determining whether the target temperature and the overshoot fitting coefficient satisfy a preset relationship further includes: Determine whether the target temperature and the overshoot fitting coefficient satisfy the following relationship: in, Let a be the target temperature, and b be the overshoot fitting coefficients. The step of obtaining the full-open stop point based on the overshoot fitting coefficient, the target temperature, and the preset desired overshoot amount further includes: Based on the following relationship, and using the overshoot fitting coefficient, target temperature, and preset desired overshoot amount, the full-open stop point is obtained: in, Let a be the target temperature, and b be the overshoot fitting coefficients. X is the preset overshoot value, and X is the full-open stop point.

2. The temperature control method according to claim 1, characterized in that, The method further includes: During the heating phase, the heating element is turned on based on a preset heating mode and heated at the maximum power of the heating element. The heating mode includes a rapid heating mode and a non-rapid heating mode. If the heating mode is a rapid heating mode, the preset rapid heating element combination will be activated for heating; if the heating mode is a non-rapid heating mode, the user-defined heating element combination will be activated for heating.

3. The temperature control method according to claim 2, characterized in that, The heating mode includes a rapid heating mode and a non-rapid heating mode. The step of obtaining the full-scale stop point based on the overshoot fitting coefficient, the target temperature, and the preset desired overshoot amount also includes: Historical heating data is obtained based on the heating mode in order to obtain the corresponding overshoot fitting coefficient; And / or, The desired overshoot is obtained based on the heating mode; If the rapid heating mode is used during the heating phase, the desired overshoot is the preset value m, where m>0; If a non-rapid heating mode is used during the heating phase, the desired overshoot is 0.

4. The temperature control method according to claim 2, characterized in that, After the heating phase ends, before adjusting the temperature inside the chamber based on the PID algorithm, the method further includes: The heating mode based on the heating phase selectively enters the transition phase; If the rapid heating mode is used during the heating phase, then the transition phase begins, during which the heating element is not turned on. If a non-rapid heating mode is used during the heating phase, the transition phase will not begin.

5. The temperature control method according to claim 4, characterized in that, The transition phase also includes: The adjustment point is obtained based on the target temperature; Determine whether the temperature inside the chamber has reached the adjustment point; if so, the transition phase ends.

6. An electronic device comprising a processor and a memory, the memory being adapted to store a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by the processor to perform the temperature control method according to any one of claims 1 to 5.

7. A computer-readable storage medium storing a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by a processor to perform the temperature control method according to any one of claims 1 to 5.

8. A cooking apparatus, the main body of which includes a housing and a heating element disposed within the housing, characterized in that, The cooking device includes the cooking device body and the electronic device as described in claim 6.

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