Control method and device for preventing dry burning of a stove, stove, computer readable storage medium

Abstract

This application relates to the field of smart home appliance technology, and discloses a control method for preventing dry burning of a stove. The method includes: acquiring the current stove heat level and determining a safe cooking model corresponding to the current heat level; acquiring the current cooking state and cookware temperature information; inputting the current cooking state and cookware temperature information into the safe cooking model, outputting a safe cooking judgment result, and executing an anti-dry burning operation corresponding to the safe cooking judgment result. By combining the current stove heat level with the determination of the corresponding safe cooking model, the accuracy of cooking safety judgment under the current stove heat level is improved, thereby increasing the accuracy of anti-dry burning control and effectively reducing the false judgment rate of anti-dry burning. The dry burning judgment result is more accurate and timely, and is not affected by the type of cookware. This application also discloses a control device, a stove, and a computer storage medium for preventing dry burning of a stove.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a control method and device for preventing dry burning of a stove, a stove, and a computer-readable storage medium. Background Technology

[0002] Dry burning refers to heating an empty pot for an extended period, causing it to dry out and burn. This is a common kitchen safety hazard, leading to discoloration and deformation of the cookware, and in severe cases, even a fire. Currently, many household stoves have anti-dry-burning functions that automatically shut off the stove when the pot reaches a set threshold, protecting the cookware. However, cooking is a complex process; the type of cookware, cooking mode, heat level, and amount of food in the pot all affect the detection of dry burning.

[0003] A related technology provides a method for preventing dry burning, which can determine whether the stove is in a water-cooking state or a waterless cooking state based on the temperature and temperature range of the cookware; and obtain the anti-dry burning temperature value corresponding to the water-cooking state or the waterless cooking state as the anti-dry burning temperature threshold of the stove. This improves the control accuracy of preventing dry burning.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] When judging the cooking status solely based on the temperature information of the cookware in order to achieve anti-dry-burning control, it is easy to cause misjudgment of the cooking status when the cookware is not actually boiling, or the actual cooking status does not match the judgment result, thus limiting the anti-dry-burning effect.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a control method and device for preventing dry burning in stoves, as well as a stove, to improve the dry burning prevention control effect.

[0009] In some embodiments, the control method for preventing dry burning of a stove includes: acquiring the current stove firepower and determining a safe cooking model corresponding to the current stove firepower; acquiring the current cooking state and pot temperature information; inputting the current cooking state and pot temperature information into the safe cooking model, outputting a safe cooking judgment result, and performing an anti-dry burning operation corresponding to the safe cooking judgment result.

[0010] Optionally, determining the safe cooking model corresponding to the current stove heat includes: obtaining an initial safe cooking model; adjusting the cooking judgment parameters in the initial safe cooking model according to the current stove heat to determine the safe cooking model corresponding to the current stove heat.

[0011] Optionally, the step of inputting the current cooking state and cookware temperature information into the safe cooking model and outputting a safe cooking judgment result includes: inputting the current cooking state and cookware temperature information into the safe cooking model; determining one or more safe cooking judgment conditions in the safe cooking model corresponding to the current cooking state; outputting a safe cooking judgment result of "dry burning" if the cookware temperature information does not meet one or more safe cooking judgment conditions; and outputting a safe cooking judgment result of "safe" if the cookware temperature information meets all safe cooking judgment conditions. The safe cooking judgment conditions consist of one or more cooking judgment parameters.

[0012] Optionally, the step of inputting cookware temperature information into the safe cooking model and outputting a safe cooking judgment result includes: inputting cookware temperature information into the safe cooking model, wherein the safe cooking model has one or more safe cooking judgment conditions; determining whether the corresponding safe cooking judgment condition is met one by one in a set order among the multiple safe cooking judgment conditions; and outputting a safe cooking judgment result.

[0013] Optionally, the safe cooking judgment conditions include at least: the current cookware temperature is less than or equal to the maximum safe temperature threshold; and / or, the current cookware temperature change rate is less than or equal to 0.

[0014] Optionally, inputting the current cooking state and cookware temperature information into the safe cooking model further includes: determining the current cookware temperature and the cooking safety temperature threshold corresponding to the current cooking state; and inputting the current cooking state and cookware temperature information into the safe cooking model when the current cookware temperature is greater than the cooking safety temperature threshold.

[0015] In some embodiments, the control device for preventing dry burning of a stove includes: a stove firepower determination module configured to acquire the current stove firepower and determine a safe cooking model corresponding to the current stove firepower; a cookware temperature acquisition module configured to acquire the current cooking state and cookware temperature information; and an execution module configured to input the current cooking state and cookware temperature information into the safe cooking model, output a safe cooking judgment result, and execute an anti-dry burning operation corresponding to the safe cooking judgment result.

[0016] In some embodiments, the control device for preventing dry burning of a cooktop includes a processor and a memory storing program instructions, the processor being configured to execute the control method for preventing dry burning of a cooktop as described above when the program instructions are executed.

[0017] In some embodiments, the cooktop includes: a cooktop body; and a control device for preventing dry burning of the cooktop, as described above, which is installed on the cooktop body.

[0018] In some embodiments, the computer-readable storage medium stores program instructions that, when executed, cause a computer to perform the control method for preventing dry burning of a stove as described above.

[0019] The control method and device for preventing dry burning of stoves, the stove itself, and the computer-readable storage medium provided in this disclosure can achieve the following technical effects:

[0020] By combining the current stove heat level to determine the corresponding safe cooking model, the current cooking status and cookware temperature information are input into the safe cooking model, outputting a safe cooking judgment result and executing the corresponding anti-dry-burning operation. This improves the accuracy of cooking safety judgment under the current stove heat level, thereby enhancing the accuracy of anti-dry-burning control and effectively reducing the false judgment rate of anti-dry-burning. The dry-burning judgment result is more accurate and timely, and is not affected by the type of cookware.

[0021] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0023] Figure 1 This is a schematic diagram illustrating the usage scenario of the stove provided in this embodiment of the disclosure;

[0024] Figure 2 This is a schematic diagram of the processor connection relationship of the stove provided in the embodiments of this disclosure;

[0025] Figure 3 This is a schematic flowchart of a control method for preventing dry burning in a stove provided in an embodiment of this disclosure;

[0026] Figure 4 This is a schematic flowchart of another control method for preventing dry burning of stoves provided in this embodiment of the present disclosure;

[0027] Figure 5a This is a schematic flowchart of another control method for preventing dry burning of stoves provided in this embodiment of the present disclosure;

[0028] Figure 5b This is a schematic flowchart of another control method for preventing dry burning of stoves provided in this embodiment of the present disclosure;

[0029] Figure 6 This is a schematic flowchart of another control method for preventing dry burning of stoves provided in this embodiment of the present disclosure;

[0030] Figure 7 This is a schematic diagram of a control device for preventing dry burning in a stove, provided in an embodiment of this disclosure;

[0031] Figure 8 This is a schematic diagram of another control device for preventing dry burning of stoves provided in an embodiment of this disclosure;

[0032] Figure 9 This is a schematic diagram of a stove provided in an embodiment of this disclosure. Detailed Implementation

[0033] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0034] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0035] Unless otherwise stated, the term "multiple" means two or more.

[0036] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0037] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0038] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0039] Stoves typically use temperature probes to detect the temperature of the pot's bottom and automatically shut off the gas supply when the temperature reaches a preset threshold, preventing fires and other accidents. However, cooking is a complex process; the type of cookware, cooking mode, heat level, and amount of food all affect the detection of dry burning. Existing methods are prone to problems such as delayed detection and misjudgment of dry burning. The various thresholds often only apply to one type of pot, resulting in a limited scope and delayed detection. For example, a thick-bottomed stone pot can reach a very high dry burning temperature, potentially exceeding 300°C. This could prevent the timely detection of dry burning in a pot. Conversely, some cast iron pots have a very low boiling point, and the temperature at which dry burning occurs is also very low (approximately 100°C to 150°C). For such pots, a fixed dry burning threshold may not be sufficient for timely detection. Therefore, conventional anti-dry burning strategies are limited by the type of cookware and have a narrow range of applicability. Furthermore, the temperature changes during dry burning vary depending on the heat level of the stove and the cooking conditions.

[0040] This solution addresses the issues of limited applicability and untimely judgment in stove anti-dry burning by establishing correlation and control logic among multiple factors, including cooking status and firepower identification, boiling temperature determination, temperature change range during dry burning, and boiling temperature change range.

[0041] Figure 1 This is a schematic diagram illustrating the usage scenario of the stove provided in this embodiment.

[0042] Combination Figure 1 As shown, this usage scenario includes a cooktop 100 and a home cloud platform 110 for communicating with the cooktop 100. The cooktop 100 can be a common cooktop used in kitchens, such as a gas cooktop, induction cooktop, electric ceramic cooktop, or integrated cooktop.

[0043] The cooktop 100 can connect to the home's WiFi network and communicate with control terminals such as mobile phones and cloud servers. Users can also control the cooktop 100 to execute cooking program commands through a smartphone application.

[0044] The cooktop 100 communicates with the home cloud platform 110 via WiFi network. The home cloud platform 110 receives real-time status data from the cooktop 100 for subscription by the big data platform and application services. It also sends cooking program instructions from other business servers, big data platforms, application terminals, and smart terminals to the cooktop 100.

[0045] In other implementation scenarios of this solution, terminal devices may also be included for communicating with the stove 100 and / or the home cloud platform 110. Here, terminal devices refer to smart devices in smart home application scenarios, such as smartphones, wearable devices, smart mobile devices, virtual display devices, etc., or smart home appliances, such as smart refrigerators, smart TVs, smart washing machines, smart air conditioners, smart speakers, smart lights, and smart curtains, or any combination thereof.

[0046] Figure 2 This is a schematic diagram of the processor connection relationship of the stove provided in the embodiments of this disclosure.

[0047] Combination Figure 2 The processor 200 of the stove is used to receive and send information and instructions. The processor 200 is connected to the temperature sensor 210 and the stove fire control 220.

[0048] The temperature sensor 210 is installed on the stove to obtain the temperature of the area where the pot is heated.

[0049] The cooktop heat control controller 220 is used to acquire the current cooktop heat level and adjust it according to instructions. Here, when the cooktop is a gas cooktop, the current heat level can be determined by acquiring the gas flow rate in the gas supply line; or by the rotation angle of the cooktop knob; or by adjusting the opening of the proportional valve based on the gas flow rate to determine the current heating level. When the cooktop is an induction cooker or an electric ceramic cooktop, the cooktop heat control controller can determine the current heat level based on the current heating power.

[0050] Figure 3 This is a flowchart illustrating a control method for preventing dry burning in a stove, provided in an embodiment of this disclosure, and applied to the aforementioned stove. This control method for preventing dry burning in a stove can be executed by the stove's processor; it can also be executed on a server, such as a home cloud platform communicating with the stove; or it can be executed on a terminal device, such as a smartphone or the control terminal of a smart home appliance. In this embodiment, the stove's processor is used as the executing entity to describe the solution.

[0051] like Figure 3 As shown, the control method for preventing dry burning in stoves includes:

[0052] Step S301: Obtain the current stove firepower and determine the safe cooking model corresponding to the current stove firepower.

[0053] Step S302: Obtain the current cooking status and cookware temperature information.

[0054] Step S303: Input the current cooking status and cookware temperature information into the safe cooking model, output the safe cooking judgment result, and execute the anti-dry burning operation corresponding to the safe cooking judgment result.

[0055] A safe cooking model is a judgment model established based on one or more sets of safe cooking judgment conditions related to stove heat. It can output a safe cooking judgment result corresponding to the input current cooking information. The judgment conditions for safe cooking status differ under different stove heat levels. For example, the threshold for the rate of temperature change of the pot differs depending on the heat level. Therefore, by combining stove heat levels to determine the corresponding safe cooking model, the accuracy of judging the safety of the current cooking state in the pot can be improved.

[0056] Cooking status includes whether the pot contains water or not. The current cooking status can be determined based on changes in the pot's temperature.

[0057] The cookware temperature information includes the current cookware temperature and the temperature change information within a set time period prior to the current time. This cookware temperature information allows us to determine the temperature changes of the cookware at the current time and within the set time period prior to the current time.

[0058] Optionally, before inputting the current cooking status and cookware temperature information into the safe cooking model, the following steps are also included:

[0059] Determine the current cookware temperature and the corresponding safe cooking temperature threshold for the current cooking state;

[0060] If the current cookware temperature is higher than the safe cooking temperature threshold, input the current cooking status and cookware temperature information into the safe cooking model.

[0061] By obtaining the cooking safety temperature threshold corresponding to the cooking state, the system can perform safe cooking detection using a safe cooking model when the current temperature is higher than the cooking safety temperature threshold, thus avoiding redundant system operation data caused by multiple data collections.

[0062] Further, determine the safe cooking temperature threshold corresponding to the current cooking state, including:

[0063] The system obtains the current cooking status and retrieves the corresponding safe cooking temperature threshold by searching a pre-stored relationship. The pre-stored relationship includes a one-to-one correspondence between the cooking status and the safe cooking temperature threshold. The relationship can be pre-stored in the controller of the stove or in other smart home appliances connected to the stove. During the communication between the smart home appliance and the stove, the relationship is retrieved to determine the corresponding safe cooking temperature threshold based on the current cooking status.

[0064] Thus, this embodiment of the invention determines a corresponding safe cooking model by combining the current stove heat level with the current cooking state and cookware temperature information. It then outputs a safe cooking judgment result and executes the corresponding anti-dry-burning operation. This improves the accuracy of cooking safety judgment under the current stove heat level, thereby enhancing the accuracy of anti-dry-burning control and effectively reducing the false judgment rate. The dry-burning judgment result is more accurate and timely, and is unaffected by the type of cookware.

[0065] The following describes how to determine a safe cooking model using specific examples.

[0066] Figure 4 This is a flowchart illustrating another control method for preventing dry burning in a stove, provided in an embodiment of this disclosure, applied to the aforementioned stove. In this embodiment, the stove is used as the executing subject to describe the solution.

[0067] like Figure 4 As shown, the control method for preventing dry burning in stoves includes:

[0068] Step S401: Obtain the current stove firepower.

[0069] Step S402: Obtain the initial safe cooking model.

[0070] An initial safe cooking model refers to a model that integrates one or more initial safe cooking judgment conditions. It can be pre-stored in the controller of the cooktop, in a home cloud platform, or pre-stored in other smart home appliances connected to the cooktop. The initial safe cooking model can be retrieved during communication between the smart home appliance and the cooktop.

[0071] Step S403: Adjust the cooking judgment parameters in the initial safe cooking model according to the current stove firepower to determine the safe cooking model corresponding to the current stove firepower.

[0072] One or more cooking judgment parameters are combined to form one or more sets of safe cooking judgment conditions in a safe cooking model. By establishing the correspondence between the current stove heat and the cooking judgment parameters in the safe cooking model, the accuracy of the safe cooking judgment for the current pot can be improved.

[0073] Step S404: Obtain the current cooking status and cookware temperature information.

[0074] Step S405: Input the current cooking status and cookware temperature information into the safe cooking model, output the safe cooking judgment result, and execute the anti-dry burning operation corresponding to the safe cooking judgment result.

[0075] Optionally, the cooking judgment parameters in the initial safe cooking model can be adjusted according to the current stove heat, including:

[0076] Obtain the cooking judgment parameters in the initial safe cooking model;

[0077] Based on the current stove heat output, determine the adjustment trend of the cooking judgment parameters;

[0078] Adjust the corresponding cooking judgment parameters according to the adjustment trend.

[0079] The adjustment trend can include the direction and / or magnitude of the adjustment of the cooking judgment parameters.

[0080] Here, the adjustment direction refers to whether the cooking judgment parameter needs to be increased or decreased according to the current stove firepower, so as to achieve a match with the current stove firepower.

[0081] The adjustment range refers to the amount of change in the cooking judgment parameters when adjusting them to match the current firepower of the stove.

[0082] Furthermore, when the adjustment trend includes the adjustment direction, the adjustment trend of the cooking judgment parameters is determined based on the current stove firepower, including:

[0083] The system obtains the stove's heat output and retrieves the adjustment direction of cooking judgment parameters corresponding to the current heat output by searching pre-stored relationships. These pre-stored relationships include a one-to-one correspondence between stove heat output and the adjustment direction of one or more cooking judgment parameters. These relationships can be pre-stored in the stove's controller or in other smart home appliances connected to the stove. During communication between the smart home appliance and the stove, these relationships are retrieved to determine the adjustment direction of the cooking judgment parameters based on the stove's heat output.

[0084] For example, the one-to-one correspondence between stove heat and one or more cooking judgment parameters can be pre-stored in the controller in the form of a table. Table 1 shows an example of such a correlation.

[0085] Table 1

[0086] Cooking judgment parameters Relationship with stove firepower <![CDATA[Lower boiling limit value B min > Positive correlation <![CDATA[Boiling upper limit value B max > Positive correlation <![CDATA[Boiling temperature range value ΔT biol > Positive correlation <![CDATA[Number of boilings B num > negative correlation <![CDATA[Lower limit value S for waterless cooking min > Positive correlation <![CDATA[Upper limit value S for waterless cooking max > Positive correlation The temperature variation range U(T) for waterless cooking Positive correlation

[0087] Furthermore, considering the adjustment trend and adjustment magnitude, the adjustment trend of the cooking judgment parameters is determined based on the current stove heat, including:

[0088] The system obtains the stove's heat output and retrieves the adjustment range of cooking judgment parameters corresponding to the current heat output by searching pre-stored relationships. These pre-stored relationships include a one-to-one correspondence between stove heat output and the adjustment range of one or more cooking judgment parameters. These relationships can be pre-stored in the stove's controller or in other smart home appliances connected to the stove. During communication between the smart home appliance and the stove, these relationships are retrieved to determine the adjustment range of the cooking judgment parameters based on the stove's heat output.

[0089] The following specific examples illustrate how to determine the safe cooking judgment result output based on the safe cooking model.

[0090] Figure 5a This is a flowchart illustrating another control method for preventing dry burning in a stove, provided in an embodiment of this disclosure, applied to the aforementioned stove. In this embodiment, the stove is used as the executing subject to describe the solution.

[0091] like Figure 5a As shown, the control method for preventing dry burning in stoves includes:

[0092] Step S501a: Obtain the current stove firepower and determine the safe cooking model corresponding to the current stove firepower.

[0093] Step S502a: Obtain the current cooking status and cookware temperature information.

[0094] Step S503a: Input the current cooking status and cookware temperature information into the safe cooking model.

[0095] Step S504a: Determine one or more safe cooking judgment conditions in the safe cooking model that correspond to the current cooking state.

[0096] Step S505a: If the cookware temperature information does not meet one or more safe cooking judgment conditions, output the safe cooking judgment result as dry burning.

[0097] Step S506a: Perform the anti-dry-burning operation corresponding to the dry-burning judgment result.

[0098] In step S507a, if the cookware temperature information meets all the safe cooking judgment conditions, output a safe cooking judgment result: safe. You can then return to step S501a to continue the detection.

[0099] The safe cooking judgment criteria consist of one or more cooking judgment parameters.

[0100] The safe cooking model integrates one or more safe cooking judgment conditions. First, based on the current cooking state, the corresponding safe cooking judgment conditions are determined. Then, if the cookware temperature information meets all the safe cooking judgment conditions corresponding to the current cooking state, the current safe cooking judgment result is determined to be safe; if the cookware temperature information does not meet any of the safe cooking judgment conditions corresponding to the current cooking state, the current safe cooking judgment result is determined to be dry burning, and the corresponding anti-dry burning operation is then executed.

[0101] The anti-dry-burning actions corresponding to the dry-burning judgment result can include reducing the stove's heat, turning off the gas supply to the stove, and sending a prompt message to the user. Among them, reducing the stove's heat can be done by reducing the heat so that the stove continues to supply a small amount of heat to the pot, or by reducing the heat until the stove is turned off and the gas (electricity) is cut off, stopping the supply of heat to the pot.

[0102] Optionally, the conditions for determining safe cooking include at least: the current temperature of the cookware is less than the maximum safe temperature threshold; and the current rate of change of the cookware temperature is less than or equal to 0.

[0103] The maximum safe temperature threshold is used to characterize the upper limit of the temperature rise of cookware under non-dry-burning conditions.

[0104] When the current cookware temperature is below the maximum safe temperature threshold, and the current rate of temperature change is less than or equal to 0, the cookware is still in a safe cooking state. When the current cookware temperature is greater than or equal to the maximum safe temperature threshold, it indicates a very high probability of dry burning, and a rate of temperature change greater than 0 indicates that the cookware temperature is still rising, further increasing the possibility of dry burning. If the cookware temperature information does not meet these safe cooking criteria, the gas supply to the stove should be turned off to prevent dry burning and avoid further temperature increases in the cookware.

[0105] Figure 5b This is a flowchart illustrating another control method for preventing dry burning in a stove, provided in an embodiment of this disclosure, applied to the aforementioned stove. In this embodiment, the stove is used as the executing subject to describe the solution.

[0106] like Figure 5b As shown, the control method for preventing dry burning in stoves includes:

[0107] Step S501b: Obtain the current stove firepower and determine the safe cooking model corresponding to the current stove firepower.

[0108] Step S502b: Obtain the current cooking status and cookware temperature information.

[0109] Step S503b: Input the current cooking status and cookware temperature information into the safe cooking model.

[0110] Step S504b: Determine multiple safe cooking judgment conditions in the safe cooking model that correspond to the cooking state.

[0111] Step S505b: Determine whether the cookware temperature information meets the corresponding safe cooking judgment condition in a set order among multiple safe cooking judgment conditions.

[0112] Step S506b: Output the safe cooking judgment result and execute the anti-dry burning operation corresponding to the safe cooking judgment result.

[0113] After determining the corresponding safe cooking judgment conditions based on the current cooking status, the pot temperature information is matched with the safe cooking judgment conditions one by one in a set order. Then, if the pot temperature information does not meet the safe cooking judgment conditions, the safe cooking judgment result is output as dry burning; if the pot temperature information meets all the safe cooking judgment conditions, the safe cooking judgment result is output as safe.

[0114] Here, the order is set to reflect the execution priority of multiple safe cooking judgment conditions.

[0115] Multiple safe cooking judgment conditions can be sorted according to the probability of dry burning. The safety judgment condition that is more likely to cause dry burning when not met has a higher execution priority and is placed earlier in the set order.

[0116] In this way, by determining whether the cookware temperature information meets the corresponding safe cooking judgment conditions one by one in the set order among multiple safe cooking judgment conditions, the accuracy and speed of cooking safety judgment under the current stove firepower can be further improved, the dry burning judgment result is more accurate and timely, and it is not affected by the type of cookware.

[0117] Figure 6 This is a flowchart illustrating a control method for preventing dry burning in a stove, provided in an embodiment of this disclosure, and applied to the aforementioned stove. In this embodiment, the stove is used as the executing subject to describe the solution.

[0118] like Figure 6 As shown, the control method for preventing dry burning in stoves includes:

[0119] Step S601: Obtain the current stove firepower.

[0120] Step S602: Obtain the corresponding cooking judgment parameters from the preset database according to the stove's firepower to form the cooking judgment conditions.

[0121] Step S603: Collect cookware temperatures up to the set number. After collecting cookware temperatures up to the set number, perform a new anti-dry-burning calculation and judgment for each new cookware temperature obtained.

[0122] Step S604: Determine the cookware temperature information based on multiple cookware temperatures.

[0123] Here, the cookware temperature information includes the current cookware temperature; the difference ΔT between multiple cookware temperatures, including at least the difference ΔT1 between two cookware temperatures spaced apart by a first set time interval and the difference ΔT2 between two cookware temperatures spaced apart by a second set time interval; the rate of change of cookware temperature (first derivative) within a third set time interval; and the second derivative of cookware temperature within a fourth set time interval.

[0124] The temperature can be calculated directly from the cookware temperature collected by the sensor; alternatively, the average value of multiple temperature values ​​collected over a continuous period of time can be calculated and taken as the current equivalent temperature T. Based on the equivalent temperature T, the temperature difference, first derivative, second derivative, etc., can be calculated.

[0125] Step S605: Determine the current water-based cooking conditions corresponding to the current stove heat level. The water-based cooking conditions must include at least the current boiling count B. num > Boiling threshold N1 for cooking with water. The current cooking conditions with water consist of one or more cooking judgment parameters corresponding to the current stove firepower obtained in step S602.

[0126] Step S606: When the current pot temperature T is greater than or equal to the lower boiling limit B min And less than the upper limit of boiling B max Furthermore, multiple temperature differences ΔT1, ΔT2, etc., are all less than the boiling temperature range value ΔT. bi If the current state of the pot is boiling, determine that the pot is boiling. Otherwise, proceed to step S611.

[0127] Step S607, B num =B num +1, current boiling temperature T biol =T. Simultaneously, the minimum current boiling temperature obtained after the change in heat output is set as the initial boiling temperature T. biol0 The maximum current boiling temperature obtained after the change in firepower is set as the maximum boiling temperature T. biolmax .

[0128] Step S608, determine B num Does the equation = 1 hold true? In B num If the value is 1, proceed to step S609; otherwise, proceed to step S610.

[0129] Step S609: Set T to the minimum boiling temperature T biol_min Proceed to step S611.

[0130] Step S610, determine T biol <Tbiol_min Is it true? In T biol <T biol_min If the condition is met, proceed to step S609; otherwise, proceed to step S611.

[0131] Step S611, determine B num >Is N1 true? In B num If the value is greater than N1, proceed to step S611a. Otherwise, proceed to step S621 to determine the waterless cooking state.

[0132] Step S611a: Determine that the pot temperature information meets the current water cooking conditions.

[0133] Step S612: When the current cooking time is greater than the set cooking time and the current pot temperature is greater than the dry-burning temperature limit D. min In this case, the cooking state with water and the cookware temperature information are input into the safe cooking model. Here, it is necessary to obtain the current cookware temperature and the cooking safety temperature threshold corresponding to the current cooking state with water. In this embodiment, the dry-burning temperature limit D is... min This serves as the safe cooking temperature threshold corresponding to the current state of cooking with water.

[0134] Step S613: Determine multiple safe cooking judgment conditions in the safe cooking model corresponding to the cooking state with water. In this embodiment, the safe cooking judgment conditions corresponding to the cooking state with water in the safe cooking model include safe cooking judgment conditions 1 to 5.

[0135] Step S614: Determine whether the cookware temperature information meets safe cooking judgment condition 1. If the cookware temperature information meets safe cooking judgment condition 1, proceed to step S615; otherwise, proceed to step S620. Among multiple safe cooking judgment conditions, determine whether the cookware temperature information meets the corresponding safe cooking judgment condition with water in a predetermined order.

[0136] Safe cooking criteria 1 includes:

[0137] The difference between the current pot temperature and the current boiling temperature is less than or equal to the first dry-boiling temperature rise judgment value T. AFBT1 ; and / or, the second derivative d of the cookware temperature within the fourth set time period. 2 T is less than or equal to the second derivative limit d for water-cooked dry-boiling. 2 T1.

[0138] That is, the safe cooking judgment condition 1 includes: TT biol ≤T AFBT1 , and / or d 2 T≤d 2 T1.

[0139] Step S615: Determine whether the cookware temperature information meets the safe cooking judgment condition 2. If the cookware temperature information meets the safe cooking judgment condition 2, proceed to step S616; otherwise, proceed to step S620.

[0140] Safe cooking judgment condition 2 includes:

[0141] The difference between the current pot temperature and the current boiling temperature is less than or equal to the second dry-boiling temperature rise judgment value T. AFBT2 ; and / or, the second derivative d of the cookware temperature within the fourth set time period. 2 T is greater than or equal to the second derivative limit d for water-cooked dry-boiling. 2 The negative value of T1.

[0142] That is, the second condition for judging safe cooking includes: TT biol ≤T AFBT2 , and / or d 2 T≤-d 2 T1.

[0143] Among them, T AFBT1 <T AFBT2 .

[0144] Step S616: Determine whether the cookware temperature information meets the safe cooking judgment condition 3. If the cookware temperature information meets the safe cooking judgment condition 3, proceed to step S617; otherwise, proceed to step S620.

[0145] Safe cooking judgment condition 3 includes: the number of consecutive times the rate of change of cookware temperature exceeds the limit value dT1 for dry burning in water is less than or equal to the number of consecutive judgments of dry burning in water n1, and / or, the second derivative of cookware temperature d within the fourth set time period. 2 T is greater than or equal to the second derivative limit d for water-cooked dry-boiling. 2 The negative value of T1.

[0146] Step S617: Determine whether the cookware temperature information meets the safe cooking judgment condition 4. If the cookware temperature information meets the safe cooking judgment condition 4, proceed to step S618; otherwise, proceed to step S620.

[0147] Safe cooking criteria 4 includes:

[0148] Current boiling temperature T biol With the initial boiling temperature T biol0 The difference is less than or equal to the maximum boiling temperature rise ΔDT bioll ; and / or, the second derivative d of the cookware temperature within the fourth set time period. 2 T is greater than or equal to the second derivative limit d for water-cooked dry-boiling. 2 The negative value of T1.

[0149] That is, the third condition for judging safe cooking includes: T biol -T biol0 ≤ΔT biol , and / or d 2 T≥-d 2 T1.

[0150] Step S618: Determine whether the cookware temperature information meets the safe cooking judgment condition 5. If the cookware temperature information meets the safe cooking judgment condition 5, proceed to step S619; otherwise, proceed to step S620.

[0151] The five criteria for judging safe cooking include:

[0152] The current cookware temperature T is less than or equal to the maximum safe temperature threshold D. max And / or, the current rate of change of the cookware temperature is less than or equal to 0.

[0153] Step S619: Output the safe cooking judgment result as safe, and return to step S601.

[0154] In step S620, the safe cooking judgment result is output as dry burning, and the gas supply to the stove is turned off, prompting the user to report dry burning. At this time, the stove can be controlled to turn off the gas and the buzzer alarm can be activated.

[0155] Step S621: Determine the current waterless cooking conditions corresponding to the current stove heat level. The current waterless cooking conditions include at least the current first waterless cooking conditions.

[0156] Step S622: Determine whether the cookware temperature information meets the first waterless cooking condition. If the cookware temperature information meets the current first waterless cooking condition, proceed to step S624; otherwise, proceed to step S623.

[0157] The current first anhydrous cooking conditions include:

[0158] The current cookware temperature is greater than or equal to the lower limit value S for waterless cooking. min And less than the upper limit value S for waterless cooking max Furthermore, the temperature difference ΔT between multiple cookware temperatures before the current cookware temperature is greater than the waterless cooking temperature variation range value U(T); wherein, the temperature difference ΔT between multiple cookware temperatures includes at least the temperature difference ΔT1 between two cookware temperatures spaced apart by a first set time interval and the temperature difference ΔT2 between two cookware temperatures spaced apart by a second set time interval.

[0159] Step S623: Determine whether the pot temperature information meets the second waterless cooking condition. If the pot temperature information meets the current second waterless cooking condition, determine that the current pot state is a waterless cooking state. Proceed to step S624; otherwise, proceed to step S626. That is, if the pot temperature information meets either the current first or the current second waterless cooking condition, determine that the current cooking state is a waterless cooking state.

[0160] The current second anhydrous cooking conditions include:

[0161] The temperature differences ΔT between multiple cookware temperatures prior to the current cookware temperature are all greater than the range of temperature changes in waterless cooking, U(T); and the rate of change of cookware temperature is less than the limit of the slope of dry burning in waterless cooking, dT2; and the current cookware temperature T is less than or equal to the threshold of dry burning in waterless cooking, D. smax .

[0162] Among them, the temperature variation range U(T) of waterless cooking can be determined based on the current pot temperature (or the current equivalent temperature) T, and is negatively correlated with the current pot temperature T.

[0163] Step S624: The pot temperature information meets the current waterless cooking conditions. The current state inside the pot is determined to be waterless cooking.

[0164] Step S625: When the current cooking time is greater than the set cooking time and the current pot temperature is greater than the dry-boiling threshold D for waterless cooking. smax In this case, the waterless cooking state and cookware temperature information are input into the safe cooking model. Here, it is necessary to obtain the current cookware temperature and the cooking safety temperature threshold corresponding to the current waterless cooking state. In this embodiment, the waterless cooking dry-burning threshold D is... smax This serves as the safe cooking temperature threshold corresponding to the current waterless cooking state.

[0165] Step S626: Determine one or more safe cooking judgment conditions in the safe cooking model corresponding to the waterless cooking state. In this embodiment, the safe cooking judgment conditions corresponding to the waterless cooking state in the safe cooking model include safe cooking judgment conditions 5 and 6.

[0166] Step S627: Determine whether the cookware temperature information meets the safe cooking judgment condition 6. If the cookware temperature information meets the safe cooking judgment condition 6, proceed to step S618; otherwise, proceed to step S620. In step S618, the previous cookware temperature T is compared with the maximum safe temperature threshold D again. max The system compares the values ​​to continuously obtain the current boiling count, and shuts off the gas supply when the current pot temperature exceeds the maximum safe temperature threshold. This allows it to continue recognizing cooking modes with water after determining that cooking is done without water, adapting to scenarios where water or ingredients are added during cooking.

[0167] Among them, the sixth criterion for judging safe cooking includes:

[0168] The number of consecutive times the slope of the cookware temperature change is greater than the threshold for the slope of dry burning without water is less than or equal to the number of consecutive judgments of dry burning without water n2; and / or, the second derivative of the current cookware temperature is less than the limit value d of the second derivative of dry burning without water. 2 The negative value of T2.

[0169] Step S628: Input the unknown cooking mode status and cookware temperature information into the safe cooking model. The unknown cooking mode status includes situations where the cooking status cannot be determined based on the current cookware temperature information, as well as situations where the cookware cooking status is determined to be an unknown cooking mode when the stove is turned on or when the heat changes.

[0170] Step S629: Determine one or more safe cooking judgment conditions in the safe cooking model corresponding to the unknown cooking mode state. In this embodiment, the safe cooking judgment condition corresponding to the unknown cooking mode state in the safe cooking model includes safe cooking judgment condition 5, i.e., proceed to step S618.

[0171] Optionally, the cooking judgment parameters used in the above embodiments are all obtained from a preset database based on the current stove firepower.

[0172] Furthermore, based on the current stove heat, the corresponding cooking judgment parameters are determined, including:

[0173] The system obtains the stove's heat output and retrieves the corresponding cooking parameters by searching pre-stored relationships. These pre-stored relationships include a one-to-one correspondence between the stove's heat output and one or more cooking parameters. These relationships can be pre-stored in the stove's controller or in other smart home appliances connected to the stove. During communication between the smart home appliance and the stove, these relationships are retrieved to determine the cooking parameters based on the stove's heat output.

[0174] For example, based on the current stove heat, the corresponding cooking judgment parameters are determined, including:

[0175] Obtain the initial cooking judgment parameters;

[0176] Adjust the initial cooking judgment parameters based on the current relationship between the stove's heat output and the cooking judgment parameters.

[0177] The one-to-one correspondence between stove heat output and one or more cooking judgment parameters can be pre-stored in the database in tabular form. Table 2 shows an example of such a correlation.

[0178] Table 2

[0179]

[0180]

[0181] Thus, the control method for preventing dry burning of stoves provided in this embodiment can determine the corresponding cooking judgment parameters by combining the current stove firepower, thereby improving the accuracy of cooking safety judgment under the current stove firepower. Simultaneously, instead of directly using the pot bottom temperature, it uses multiple collected temperature values, or the truncated average over a set time period, as the equivalent temperature for calculation, avoiding misjudgments caused by occasional, brief temperature anomalies and improving the reliability of the detection data. The boiling and waterless cooking states are determined by the pot temperature changes over different durations, and the boiling temperature and number of boiling cycles are used to determine whether it is a water-cooking mode. This considers temperature changes over different durations, making the cooking state judgment more accurate. The safety cooking model with built-in safety cooking judgment conditions ensures that the various judgment conditions are not mutually exclusive. In the water-cooking mode, the boiling temperature and the first and second derivatives of the temperature change are used as the safety cooking judgment criteria; in the waterless cooking mode, the pot bottom temperature and the first and second derivatives of the temperature change are used as the safety cooking judgment criteria. It is not affected by factors such as the type of cookware, the amount of food being cooked, the amount of water, the heat level, or changes in heat, making it adaptable to a wide range of situations and allowing for more accurate and timely judgments.

[0182] Figure 7 This is a schematic diagram of a control device for preventing dry burning in a stove, provided in an embodiment of this application. The control device for preventing dry burning in a stove can be implemented through software, hardware, or a combination of both.

[0183] Combination Figure 7 As shown in the figure, this disclosure provides a control device 700 for preventing dry burning of a stove, including a stove firepower determination module 71, a cookware temperature acquisition module 72, and an execution module 73. The stove firepower determination module 71 is configured to acquire the current stove firepower and determine a safe cooking model corresponding to the current stove firepower; the cookware temperature acquisition module 72 is configured to acquire the current cooking state and cookware temperature information; the execution module 73 is configured to input the current cooking state and cookware temperature information into the safe cooking model, output a safe cooking judgment result, and execute an anti-dry burning operation corresponding to the safe cooking judgment result.

[0184] Combination Figure 8As shown, this embodiment of the disclosure provides a control device 800 for preventing dry burning of a stove, including a processor 800 and a memory 801. Optionally, the device may further include a communication interface 802 and a bus 803. The processor 800, communication interface 802, and memory 801 can communicate with each other via the bus 803. The communication interface 802 can be used for information transmission. The processor 800 can call logical instructions in the memory 801 to execute the control method for preventing dry burning of the stove described in the above embodiment.

[0185] Furthermore, the logic instructions in the aforementioned memory 801 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0186] The memory 801, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 800 executes functional applications and data processing by running the program instructions / modules stored in the memory 801, thereby implementing the control method for preventing dry burning of the stove in the above embodiments.

[0187] The memory 801 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 801 may include high-speed random access memory and may also include non-volatile memory.

[0188] Combination Figure 9 As shown, this disclosure provides a cooktop 100, including a product body and the aforementioned control device 700 (800) for preventing dry burning. The control device 700 (800) for preventing dry burning is installed on the product body. The installation relationship described herein is not limited to placement inside the product, but also includes installation and connection with other components of the product, including but not limited to physical connection, electrical connection, or signal transmission connection. Those skilled in the art will understand that the control device 700 (800) for preventing dry burning can be adapted to feasible product bodies to achieve other feasible embodiments.

[0189] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to execute the above-described control method for preventing dry burning of a stove.

[0190] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, such as a USB flash drive, external hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, etc., and other media capable of storing program code.

[0191] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0192] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0193] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0194] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A control method for preventing dry burning in stoves, characterized in that, include: Get the current stove heat level and obtain the initial safe cooking model; Adjust the cooking judgment parameters in the initial safe cooking model according to the current stove firepower to determine the safe cooking model corresponding to the current stove firepower; Get the current cooking status and cookware temperature information; Input the current cooking status and cookware temperature information into the safe cooking model, output the safe cooking judgment result, and execute the anti-dry burning operation corresponding to the safe cooking judgment result; The step of inputting the current cooking status and cookware temperature information into the safe cooking model and outputting a safe cooking judgment result includes: Input the current cooking status and cookware temperature information into the safe cooking model; Determine multiple safe cooking judgment conditions in the safe cooking model that correspond to the current cooking state; If the cookware temperature information does not meet one or more safe cooking judgment conditions, the output safe cooking judgment result is dry burning; If the cookware temperature information meets all the conditions for safe cooking, the safe cooking judgment result is output as safe. The safe cooking judgment condition is composed of multiple cooking judgment parameters; The safe cooking judgment conditions include: the difference between the current cookware temperature and the current boiling temperature is less than or equal to the first dry-heating judgment value T. AFBT1 ; and / or, the second derivative d of the cookware temperature within the fourth set time period. 2 T is less than or equal to the second derivative limit d for water-cooked dry-boiling. 2 T1; The safe cooking judgment conditions also include: the number of consecutive times the rate of change of the cookware temperature exceeds the limit value dT1 for dry burning in water is less than or equal to the number of consecutive judgments of dry burning in water n1, and / or, the second derivative of the cookware temperature d within the fourth set time period. 2 T is greater than or equal to the second derivative limit d for water-cooked dry-boiling. 2 Negative values ​​of T1; The safe cooking judgment criteria also include: the current cookware temperature T is less than or equal to the maximum safe temperature threshold D. max And / or, the current rate of change of the cookware temperature is less than or equal to 0.

2. The control method according to claim 1, characterized in that, The process of inputting cookware temperature information into the safe cooking model and outputting a safe cooking judgment result includes: Input the cookware temperature information into the safe cooking model, which has multiple safe cooking judgment conditions. Among multiple safe cooking judgment conditions, determine whether the corresponding safe cooking judgment conditions are met one by one in a set order; Output the result of the safe cooking judgment.

3. The control method according to any one of claims 1 or 2, characterized in that, The current cooking status and cookware temperature information are input into the safe cooking model, which also includes: Determine the current cookware temperature and the corresponding safe cooking temperature threshold for the current cooking state; If the current cookware temperature is higher than the safe cooking temperature threshold, input the current cooking status and cookware temperature information into the safe cooking model.

4. A control device for preventing dry burning in stoves, characterized in that, include: The stove firepower determination module is configured to obtain the current stove firepower and acquire the initial safe cooking model; Adjust the cooking judgment parameters in the initial safe cooking model according to the current stove firepower to determine the safe cooking model corresponding to the current stove firepower; The cookware temperature acquisition module is configured to acquire the current cooking status and cookware temperature information; The execution module is configured to input the current cooking state and cookware temperature information into the safe cooking model, output a safe cooking judgment result, and execute an anti-dry-burning operation corresponding to the safe cooking judgment result; wherein, inputting the current cooking state and cookware temperature information into the safe cooking model and outputting a safe cooking judgment result includes: Input the current cooking status and cookware temperature information into the safe cooking model; Determine multiple safe cooking judgment conditions in the safe cooking model that correspond to the current cooking state; If the cookware temperature information does not meet one or more safe cooking judgment conditions, the output safe cooking judgment result is dry burning; If the cookware temperature information meets all the conditions for safe cooking, the safe cooking judgment result is output as safe. The safe cooking judgment condition is composed of multiple cooking judgment parameters; The safe cooking judgment conditions include: the difference between the current cookware temperature and the current boiling temperature is less than or equal to the first dry-heating judgment value T. AFBT1 ; and / or, the second derivative d of the cookware temperature within the fourth set time period. 2 T is less than or equal to the second derivative limit d for water-cooked dry-boiling. 2 T1; The safe cooking judgment conditions also include: the number of consecutive times the rate of change of the cookware temperature exceeds the limit value dT1 for dry burning in water is less than or equal to the number of consecutive judgments of dry burning in water n1, and / or, the second derivative of the cookware temperature d within the fourth set time period. 2 T is greater than or equal to the second derivative limit d for water-cooked dry-boiling. 2 Negative values ​​of T1; The safe cooking judgment criteria also include: the current cookware temperature T is less than or equal to the maximum safe temperature threshold D. max And / or, the current rate of change of the cookware temperature is less than or equal to 0.

5. A control device for preventing dry burning in a stove, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the control method for preventing dry burning of a stove as described in any one of claims 1 to 3.

6. A stove, characterized in that, include: The stove body; The control device for preventing dry burning of a stove as described in claim 4 or 5 is installed on the stove body.

7. A computer-readable storage medium storing program instructions, characterized in that, When the program instructions are executed, they cause the computer to perform the control method for preventing dry burning of the stove as described in any one of claims 1 to 3.

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