Control method, control device and stove for preventing dry burning

Abstract

The present application relates to the technical field of stoves, and discloses a control method for preventing dry burning, comprising: detecting the temperature information of a pot; when the temperature information of the pot meets a first condition, controlling the stove to stop heating; wherein the first condition has a corresponding relationship with the material of the pot, the material of the pot is determined by detecting the temperature information of the pot, and the condition for controlling the stove to stop heating is determined according to the material of the pot, and when the temperature information of the pot meets the condition, the stove is controlled to stop heating to prevent the problem of dry burning. Since pots of different materials have different anti-dry burning thresholds, accurate dry burning prevention of pots of different materials is achieved according to temperature information, which simplifies the determination method and effectively reduces the misjudgment rate of anti-dry burning. The present application also discloses a control device and stove for preventing dry burning.

Description

Technical Field

[0001] The present application relates to the technical field of stoves, for example, to a control method, a control device and a stove for preventing dry burning. Background Art

[0002] Dry burning refers to heating an empty pot for a long time. Due to the long heating time, the pot will dry out or burn. It is a common safety hazard in the kitchen. Dry burning of pots will cause the pots to change color and deform. In serious cases, it may even cause a fire. At present, the anti-dry burning function is common in household stoves. By automatically shutting down the stove when the pot reaches the set threshold, the anti-dry burning control of the pot is realized, which plays a role in protecting the pot.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] In the related art, by comparing with a pre-set single temperature threshold, dry burning is determined to have occurred when the bottom temperature of the pot is higher than the threshold. This technique is more suitable for pots made of metal with good thermal conductivity. For pots with poor thermal conductivity, such as casserole pots or ceramic pots, due to their poor thermal conductivity, there is a large error in obtaining the bottom temperature of the pot. Therefore, it is not suitable for anti-dry burning control only by temperature. Summary of the invention

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The embodiments of the present disclosure provide a control method, a control device and a stove for preventing dry burning, so as to solve the technical problems in the related art that the error is large and the anti-dry burning effect is limited when the anti-dry burning control of non-metallic cookware is performed only by temperature conditions.

[0007] In some embodiments, the control method includes: detecting temperature information of the cookware; when the temperature information of the cookware satisfies a first condition, controlling the cooker to stop heating; wherein the first condition corresponds to the material of the cookware.

[0008] In some embodiments, the device includes a processor and a memory storing program instructions, and the processor is configured to perform the above-mentioned control method for preventing dry burning when executing the program instructions.

[0009] In some embodiments, the stove includes the above-mentioned control device for preventing dry burning.

[0010] The control method, control device and stove for preventing dry burning provided by the embodiments of the present disclosure can achieve the following technical effects:

[0011] The material of the pot is determined by detecting the temperature information of the pot, and the conditions for controlling the stove to stop heating are determined based on the material of the pot. When the temperature information of the pot meets the conditions, the stove is controlled to stop heating to prevent dry burning. Since pots of different materials have different anti-dry burning thresholds, accurate dry burning prevention of pots of different materials is achieved based on temperature information, which simplifies the judgment method and effectively reduces the false judgment rate of anti-dry burning.

[0012] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0014] Figure 1 It is a flow chart of a control method for preventing dry burning provided by an embodiment of the present disclosure;

[0015] Figure 2 is a schematic diagram of a control device for preventing dry burning provided by an embodiment of the present disclosure;

[0016] Figure 3 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0017] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0018] The present disclosure provides a control method for preventing dry burning. Figure 1 As shown, including:

[0019] Step S100, detecting the temperature information of the cookware.

[0020] Generally, when a stove is used to heat a pot, the temperature information of the pot may include the temperature of the bottom of the pot, its heating rate based on the relationship between temperature and time, and the rate of change of the heating rate. The temperature parameter can be obtained by a temperature detection device arranged on the stove or the bottom of the pot, and the time parameter can be obtained by a timer on the stove or the pot.

[0021] Step S110, when the temperature information of the cookware meets the first condition, the cooker is controlled to stop heating; wherein the first condition corresponds to the material of the cookware.

[0022] Here, the first condition is used to express a control condition related to the material of the cookware, and is used to control the cooker to stop heating to prevent dry burning when the temperature information of the cookware meets the control condition. Since cookware of different materials has different dry burning prevention thresholds, accurate dry burning prevention of cookware of different materials is achieved based on temperature information, which simplifies the determination method and effectively reduces the false determination rate of dry burning prevention.

[0023] In some embodiments, the first condition includes: the temperature of the pot is greater than a threshold value.

[0024] Here, the threshold value is used to indicate the maximum temperature critical value of the temperature range that can maintain the cookware in a good state of use during the cooking process. Cookware of different materials has different threshold setting ranges, so the value of the threshold value corresponds to the material of the cookware. When the temperature of the cookware, such as the temperature of the bottom of the pot, is greater than the threshold value, the cookware is at risk of dry burning. At this time, the cooker is controlled to stop heating, thereby achieving accurate dry burning prevention of the cookware.

[0025] In some embodiments, the control method for preventing dry burning further includes: determining the material of the pot according to the heating rate of the pot; determining the threshold according to the material of the pot. The material of the pot is determined according to the heating rate in the pot temperature information. Pots of different materials have different heating rates due to different heat transfer speeds. Therefore, the heating rate has a corresponding relationship with the material of the pot, and the threshold for preventing dry burning can be determined accordingly. Here, the heating rate of the pot is determined based on the heating range and heating time of the pot. For example, the first heating range [T1, T2] is detected and obtained within the first measurement period t1, then the heating rate k1 = (T2-T1) / t1; it can also be the time t2 required for the pot temperature to rise from T2 to T3, then the heating rate k2 = (T3-T2) / t2.

[0026] Optionally, the threshold is determined according to the material of the pot, including: when the material of the pot is metal, the threshold is a first set value; or when the material of the pot is non-metallic, the threshold is a second set value; wherein the first set value is less than the second set value. In this way, when the threshold is determined according to the material of the pot, only dry-burn prevention is implemented for a single pot material, and pots of other materials can be set with a default threshold for dry-burn prevention.

[0027] Optionally, determining the threshold value according to the material of the pot includes: when the material of the pot is metal, the threshold value is a first set value; and when the material of the pot is non-metal, the threshold value is a second set value; wherein the first set value is less than the second set value. In this way, when determining the threshold value according to the material of the pot, it is possible to set the anti-dry-burning threshold value for metal pots and non-metal pots, and a default threshold value can be set for anti-dry-burning for pots of other materials.

[0028] Here, the first setting value is used to indicate the maximum temperature critical value of the temperature range in which a metal cookware can maintain a good use state during the cooking process; the second setting value is used to indicate the maximum temperature critical value of the temperature range in which a non-metal cookware can maintain a good use state during the cooking process. Here, the cookware material is judged according to the heating rate to determine the threshold value that meets the cookware.

[0029] In some embodiments, the material of the pot is determined according to the heating rate of the pot, including: when the heating rate of the pot is less than the first set rate and the rate of change of the heating rate is less than 0, the material of the pot is metal. The first set rate is used to indicate the critical value of the heating rate of the pot when the heating rate of the pot is slow and the rate of change is low; optionally, the value of the first set rate is 0.8-1.2, and the value of the first set rate is 1. The rate of change of the heating rate is obtained by the second-order derivative of the temperature with respect to time, for example, a0=(k2-k1) / t2, and a0 is the rate of change of the heating rate between T2 and T3.

[0030] Under this condition, the rate of change of the heating rate of the cooker is less than 0. Optionally, the rate of change of the heating rate is negative, close to 0 and does not fluctuate much, indicating that the heating speed of the cooker has become slower and slower. When the heating rate of the cooker is also less than the third threshold, it indicates that the temperature rise change of the cooker has reached the limit. In this way, it can be determined that the material of the cooker is a metal cooker. It can be further determined that the current metal cooker is in a waterless cooking dry-burning state. At this time, according to the material of the cooker, the first set value is assigned to 300 degrees. When the temperature of the cooker is greater than 300 degrees, the cooker is controlled to stop heating, which can prevent the metal cooker from dry-burning.

[0031] In some embodiments, determining the material of the cookware according to the heating rate of the cookware includes: when the heating rate of the cookware is greater than the second set rate and the change rate of the heating rate is greater than or equal to 0, the material of the cookware is a metal material; wherein, the second set rate has a corresponding relationship with the firepower level of the cooktop. Here, the second set rate is used to represent the heating rate of a cookware of a certain material in the normal cooking state under the corresponding firepower level. When the heating rate of the cookware is greater than the second set rate, it means that the heating speed of the cookware is in a relatively fast state, greater than the heating rate of the normal cookware cooking state corresponding to this firepower level, and there may be a risk of dry burning. The change rate of the heating rate of the cookware is greater than or equal to 0, indicating that the cookware still maintains a relatively high heating speed and gradually increases its heating rate over time, or continuously maintains a certain heating rate. The cookware material corresponding to this state is a metal cookware. Further, it can be inferred that the current metal cookware is in a dry burning state during cooking with water. At this time, according to the material of the cookware, the first set value is assigned 300 degrees. When the temperature of the cookware is greater than 300 degrees, the cooktop is controlled to stop heating, which can prevent the metal cookware from dry burning.

[0032] Optionally, the higher the firepower of the cooktop, the larger the value of the corresponding second set rate. Since the second set rate has a corresponding relationship with the firepower level, which represents the heating rate of a cookware of a certain material in the normal cooking state under the corresponding firepower level, the value of the second set rate increases accordingly with the increase of the firepower level. Here, the firepower level can be obtained through a firepower detection sensor. The firepower detection sensor can be a rotatable potentiometer installed on the cooktop switch knob column. By sensing the resistance, voltage or current change of the potentiometer, the firepower adjustment gear of the cooktop is obtained, and further the firepower size of the cooktop is judged. In another embodiment, the firepower detection sensor can also be a gas flow rate sensing device installed on the gas pipeline, and the firepower size of the cooktop is judged by sensing the gas flow rate. In yet another embodiment, the firepower detection sensor can be a gas pressure sensing device installed on the gas pipeline, and the firepower size of the cooktop is judged by sensing the gas pressure. Of course, the cooktop can also be an induction cooker. At this time, the firepower of the induction cooker can be judged by detecting the current size or firepower gear of the supply coil; the firepower can be divided into multiple gears, such as 1st gear, 2nd gear, 3rd gear, 4th gear and 5th gear, etc. In one embodiment, the firepower is divided into 3 gears, the 1st gear is low fire, the 2nd gear is medium fire, and the 3rd gear is high fire. The first preset firepower is P1 and the second preset firepower is P2. For example, when the detected firepower P < P1, it is judged that the current firepower level is low fire. When the detected firepower P1 ≤ P ≤ P2, it is judged that the current firepower level is medium fire. When the detected firepower P > P2, it is judged that the current firepower level is high fire. According to the current firepower level, the corresponding second set rate value can be confirmed, which is used to judge the cooking state of the cookware, so as to determine the threshold for preventing the cookware from dry burning.

[0033] Optionally, when the heating rate of the cookware does not meet the above conditions, the material of the cookware is non-metallic material, such as a ceramic pot. According to the material characteristics of the cookware, the corresponding second setting value for preventing dry burning should be greater than the first setting value mentioned above. Optionally, the second setting value is assigned to 400 degrees. When the temperature of the cookware is greater than 400 degrees, the stove is controlled to stop heating, which can prevent the non-metallic cookware from dry burning.

[0034] In some embodiments, the above-mentioned detecting the temperature information of the cookware includes: when the temperature of the cookware reaches a preset temperature, detecting the temperature information of the cookware.

[0035] Here, the preset temperature is used to express the temperature range in which some or all of the materials of the pot are in a safe cooking state during the cooking process. Optionally, the preset temperature range is 140 to 230 degrees. When cooking starts, when the temperature of the pot, such as the temperature of the bottom of the pot, is within the preset temperature range, the pot is in a state where heating and cooking have begun and there is no danger of dry burning. At this time, the anti-dry burning function is activated and its temperature information is obtained. Compared with the solution of continuously detecting the relationship between the temperature and time of the pot, it can shorten the data detection time and reduce redundant data and the storage space required. Optionally, after cooking starts, the current pot temperature can be detected regularly by setting an interval time period to determine whether to turn on the anti-dry burning function and detect the temperature information of the pot.

[0036] In some embodiments, the above control method for preventing dry burning further includes: when the temperature of the pot reaches a third set value, controlling the stove to stop heating. The third set value is used to express the temperature at which some or all of the materials of the pot are at risk of dry burning. When the pot reaches this temperature, continuing to heat it may cause the pot to dry burn or even explode. Optionally, the third set value is greater than the above second set value; optionally, the third set value is assigned to 500 degrees. When the temperature of the pot is greater than 500 degrees, the stove is controlled to stop heating, which can prevent the pot from dry burning. In this way, when the threshold cannot be set according to the material of the pot, the anti-dry burning protection of the pot is achieved by setting the third set value.

[0037] The control method for preventing dry burning provided in this embodiment detects the temperature information of the pot and the material of the pot, and determines the condition for controlling the stove to stop heating according to the material of the pot. When the temperature information of the pot meets the condition, the stove is controlled to stop heating to prevent the problem of dry burning. Since pots of different materials have different thresholds for preventing dry burning, accurate prevention of dry burning of pots of different materials is achieved according to temperature information, which simplifies the determination method, improves data processing efficiency, and effectively reduces the false determination rate of preventing dry burning.

[0038] The present disclosure provides a control device for preventing dry burning. Figure 2 As shown, including:

[0039] The detection module 200 is used to detect the temperature information of the cookware.

[0040] Generally, when a stove is used to heat a pot, the temperature information of the pot may include the temperature of the bottom of the pot, its heating rate based on the relationship between temperature and time, and the rate of change of the heating rate. The temperature parameter can be obtained by a temperature detection device arranged on the stove or the bottom of the pot, and the time parameter can be obtained by a timer on the stove or the pot.

[0041] The control module 210 controls the cooker to stop heating when the temperature information of the cooker satisfies a first condition; wherein the first condition corresponds to the material of the cooker.

[0042] In some embodiments, the first condition includes: the temperature of the pot is greater than a threshold value. When the temperature of the pot, such as the temperature of the bottom of the pot, is greater than the threshold value, the pot is at risk of dry burning, and the cooker is controlled to stop heating, thereby achieving accurate dry burning prevention of the pot.

[0043] In some embodiments, the control device for preventing dry-boiling further includes: a material determination module configured to determine the material of the cookware according to the heating rate of the cookware; and a threshold determination module configured to determine the threshold according to the material of the cookware. The material of the cookware is determined according to the heating rate in the cookware temperature information. Cookware of different materials has different heating rates due to different heat transfer speeds. Therefore, the heating rate has a corresponding relationship with the material of the cookware, and the threshold for preventing dry-boiling can be determined accordingly.

[0044] In some embodiments, the threshold is determined according to the material of the pot, including: when the material of the pot is metal, the threshold is a first set value; or when the material of the pot is non-metallic, the threshold is a second set value; wherein the first set value is less than the second set value. In this way, when the threshold is determined according to the material of the pot, only dry-boiling prevention is implemented for a single pot material, and pots of other materials can be set with a default threshold for dry-boiling prevention.

[0045] In some embodiments, the material of the cookware is determined according to the heating rate of the cookware, including: when the heating rate of the cookware is less than a first set rate and the rate of change of the heating rate is less than 0, the material of the cookware is metal.

[0046] In some embodiments, the material of the cookware is determined based on the heating rate of the cookware, including: when the heating rate of the cookware is greater than a second set rate and the rate of change of the heating rate is greater than or equal to 0, the material of the cookware is metal; wherein the second set rate has a corresponding relationship with the firepower level of the stove.

[0047] Optionally, the higher the firepower of the stove, the larger the value of the corresponding second set rate. Since the second set rate has a corresponding relationship with the firepower level, it expresses the heating rate of a pot of a certain material in a normal cooking state under the corresponding firepower level. Therefore, as the firepower level increases, the value of the second set rate also increases accordingly.

[0048] Optionally, when the heating rate of the cookware does not meet the above conditions, the material of the cookware is non-metallic material, such as a ceramic pot. According to the material characteristics of the cookware, the corresponding second setting value for preventing dry burning should be greater than the first setting value mentioned above. Optionally, the second setting value is assigned to 400 degrees. When the temperature of the cookware is greater than 400 degrees, the stove is controlled to stop heating, which can prevent the non-metallic cookware from dry burning.

[0049] In some embodiments, the above-mentioned detecting the temperature information of the cookware includes: when the temperature of the cookware reaches a preset temperature, detecting the temperature information of the cookware.

[0050] Here, the preset temperature is used to express the temperature range in which some or all of the materials of the pot are in a safe cooking state during the cooking process. Optionally, the preset temperature range is 140 to 230 degrees. When cooking starts, when the temperature of the pot, such as the temperature of the bottom of the pot, is within the preset temperature range, the pot is in a state where heating and cooking have begun and there is no danger of dry burning. At this time, the anti-dry burning function is activated and its temperature information is obtained. Compared with the solution of continuously detecting the relationship between the temperature and time of the pot, it can shorten the data detection time and reduce redundant data and the storage space required. Optionally, after cooking starts, the current pot temperature can be detected regularly by setting an interval time period to determine whether to turn on the anti-dry burning function and detect the temperature information of the pot.

[0051] In some embodiments, the control device for preventing dry burning mentioned above further includes: a forced stop module, which is configured to control the stove to stop heating when the temperature of the pot reaches a third set value. The third set value is used to express the temperature at which some or all of the materials of the pot are at risk of dry burning. When the pot reaches this temperature, continuing to heat it may cause the pot to dry burn or even explode. Optionally, the third set value is greater than the second set value mentioned above; optionally, the third set value is assigned to 500 degrees. When the temperature of the pot is greater than 500 degrees, the stove is controlled to stop heating, which can prevent the pot from dry burning. In this way, when the threshold cannot be set according to the material of the pot, the anti-dry burning protection of the pot is achieved by setting the third set value.

[0052] The control device for preventing dry burning provided in this embodiment detects the temperature information of the pot and the material of the pot, and determines the condition for controlling the stove to stop heating according to the material of the pot. When the temperature information of the pot meets the condition, the stove is controlled to stop heating to prevent the problem of dry burning. Since pots of different materials have different thresholds for preventing dry burning, accurate prevention of dry burning of pots of different materials is achieved according to temperature information, which simplifies the determination method, improves the data processing efficiency, and effectively reduces the false judgment rate of preventing dry burning.

[0053] The disclosed embodiment provides a stove, comprising the above-mentioned device for preventing dry burning. Optionally, the stove can be an induction cooker or a gas stove. By providing the device for preventing dry burning, the material of the pot placed on the stove for cooking can be determined according to the temperature information of the pot, so as to control the stove and prevent the pot from being dry burned, thereby effectively improving the safety of the stove and reducing the misjudgment rate when preventing dry burning.

[0054] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned control method for preventing dry burning.

[0055] An embodiment of the present disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the above-mentioned control method for preventing dry burning.

[0056] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0057] The present disclosure provides an electronic device, the structure of which is as follows: Figure 3 As shown, the electronic device includes:

[0058] at least one processor 300, Figure 3 In the example, a processor 300 is used; and a memory 301 may also include a communication interface 302 and a bus 303. The processor 300, the communication interface 302, and the memory 301 may communicate with each other through the bus 303. The communication interface 302 may be used for information transmission. The processor 300 may call the logic instructions in the memory 301 to execute the control method for preventing dry burning in the above embodiment.

[0059] In addition, the logic instructions in the memory 301 described above can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0060] The memory 301 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 300 executes functional applications and data processing by running the software programs, instructions and modules stored in the memory 301, that is, implementing the control method for preventing dry burning in the above method embodiment.

[0061] The memory 301 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 301 may include a high-speed random access memory and may also include a non-volatile memory.

[0062] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0063] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, individual components and functions are optional, 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. The scope of the embodiments of the present disclosure includes the entire scope of the claims, and all available equivalents of the claims. When used in this application, although the terms "first", "second", etc. may be used in this application to describe each element, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without changing the meaning of the description, the first element can be called the second element, and similarly, the second element can be called the first element, as long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first element and the second element are both elements, but may not be the same element. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular forms "a", "an" and "the" are intended to include the plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method or device including the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0064] Those skilled in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0065] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0066] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

[0067] The terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. in this document indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this document and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of this document, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, it can also be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0068] As used herein, the term "plurality" means two or more than two, unless otherwise specified.

[0069] In this document, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0070] In this article, the term "and / or" is a description of the association relationship between objects, indicating that three relationships may exist. For example, A and / or B means: A or B, or, A and B.

Claims

1. A control method for preventing dry burning, characterized in that: include: Detect the temperature information of the pot; When the temperature information of the cooker meets the first condition, controlling the cooker to stop heating; Wherein, the first condition has a corresponding relationship with the material of the cookware; The first condition includes: the temperature of the pot is greater than a threshold; Determining the threshold value includes: determining the material of the cookware according to the heating rate of the cookware; Determining the threshold value according to the material of the cookware; When the heating rate of the cookware is less than the first set rate and the rate of change of the heating rate is less than 0, the material of the cookware is metal.

2. The control method according to claim 1, characterized in that: Determining the threshold according to the material of the cookware includes: When the material of the cookware is metal, the threshold is a first set value; and / or When the material of the cookware is non-metallic material, the threshold is a second set value; The first setting value is smaller than the second setting value.

3. The control method according to claim 1, characterized in that: Determining the material of the cookware according to the heating rate of the cookware includes: When the heating rate of the cookware is greater than the second set rate and the rate of change of the heating rate is greater than or equal to 0, the material of the cookware is metal.

4. The control method according to claim 2, characterized in that: The higher the firepower of the stove is, the larger the value of the corresponding second set rate is.

5. The control method according to any one of claims 1 to 4, characterized in that: The detecting the temperature information of the cookware comprises: When the temperature of the pot reaches the preset temperature, the temperature information of the pot is detected.

6. A control device for preventing dry burning, characterized in that: The method comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the method according to any one of claims 1 to 5 when executing the program instructions.

7. A cooking appliance, characterized in that: The invention comprises a control device for preventing dry burning as claimed in claim 6.

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