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, including: detecting the temperature information of the pot; determining the temperature threshold according to the matching of the temperature information of the pot and the preset information in the database; when the temperature of the pot is greater than or equal to the temperature threshold, controlling the stove to stop heating. By determining the temperature threshold for preventing dry burning according to the matching of the temperature information of the pot and the preset information in the database, when the temperature of the pot is greater than the temperature threshold, controlling the stove to stop heating to prevent the problem of dry burning. Since pots of different materials have different temperature change information, accurate dry burning prevention of pots of different materials is achieved according to the temperature information. By establishing a database, the judgment method is simplified and the misjudgment rate of preventing dry burning is effectively reduced. 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 method includes: detecting temperature information of the cookware; determining a temperature threshold according to a match between the temperature information of the cookware and preset information in a database; and controlling the cooker to stop heating when the temperature of the cookware is greater than or equal to the temperature threshold.

[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] By detecting the temperature information of the pot, and setting the temperature threshold for preventing dry burning according to the matching of the temperature information of the pot with the preset information in the database, when the temperature of the pot is greater than or equal to the threshold, the cooker is controlled to stop heating to prevent dry burning. Since pots of different materials have different temperature information in the cooking state, accurate dry burning prevention of pots of different materials is achieved according to the temperature information. By establishing a database, the judgment method is simplified and the misjudgment rate of preventing dry burning is effectively reduced.

[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, determining a temperature threshold value according to a matching condition between the temperature information of the cookware and the preset information in the database.

[0022] Here, the preset information in the database is used to represent the preset information of one or more materials of pots in the cooking state. The preset information may include preset parameters corresponding to the temperature information obtained in step S100, such as the heating rate of the temperature-time relationship of a pot of one material in the cooking state, and the rate of change of the heating rate. Further, the preset information in the database may include the preset information of pots of multiple materials in the cooking state; or the preset information of pots of at least one material in multiple cooking states. Here, the cooking state may be the relatively basic water cooking and waterless cooking states; it may also be the preset information of the temperature change of the pot under at least one degree of fire under at least one cooking state; it may also be a cooking state based on at least one recipe. The corresponding recipe of the current cooked ingredients can be obtained by linkage with other kitchen appliances or smart appliances, and then the preset information of the corresponding recipe in the database is called according to the recipe.

[0023] Step S120: When the temperature of the cooker is greater than or equal to the temperature threshold, the cooker is controlled to stop heating.

[0024] Here, the temperature threshold 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, and the value of the threshold 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, 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 temperature information of the cookware includes the temperature information of the cookware within a preset time period. Here, the preset time period is used to represent a certain time period after the cooktop starts heating the cookware, during which the cookware is in a safe cooking state without the risk of dry burning. By obtaining the temperature information of the cookware within the preset time period and matching it with the preset information in the database, it is possible to make a matching inference about the material of the cookware currently in the cooking state. On the other hand, by obtaining the temperature information of the cookware within the preset time period, compared with the solution of continuously detecting the relationship between the cookware temperature and time, the data detection time can be shortened, and redundant data and the storage space required for it can be reduced. Optionally, when the temperature information is the temperature information of the cookware within the preset time period, the firepower level of the current cooktop also needs to be obtained. Under different firepower levels, the temperature information of the cookware within a fixed preset time period is different. Therefore, by matching with the preset information corresponding to the firepower level in the database, the accurate judgment of the cookware material can be further improved. 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 change in the resistance, voltage or current of the potentiometer, the cooktop firepower adjustment gear is obtained, and further the cooktop firepower size 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 cooktop firepower size 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 cooktop firepower size is judged by sensing the gas pressure. Of course, the cooktop can also be an induction cooker. In this case, 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.

[0026] Optionally, the preset time period includes multiple spaced time periods.

[0027] Here, by obtaining the temperature information of the cookware in multiple spaced time periods, it is possible to perform multiple matches between the cookware currently in the cooking state and the preset information in the database, realize the monitoring of the multi-stage cooking state of the cookware, and further improve the accurate judgment of the cookware material. At the same time, by setting the spaced time periods, the redundant data brought by continuous detection and the storage space required for it are reduced.

[0028] Optionally, the temperature information of the cookware includes the temperature information of the cookware within a preset temperature range.

[0029] Here, the preset temperature range is used to indicate a temperature range in which the cookware is in a safe cooking state without the risk of dry burning after the cooker starts to heat the cookware. By obtaining the temperature information of the cookware within the preset temperature range and matching it with the preset information in the database, the material of the cookware currently in the cooking state can be matched and inferred. On the other hand, by obtaining the temperature information of the cookware within the preset temperature range, compared with the solution of continuously detecting the relationship between the cookware temperature and time, the data detection time can be shortened, and redundant data and the storage space required can be reduced.

[0030] Optionally, the preset temperature interval includes a plurality of spaced temperature intervals.

[0031] Here, by obtaining the temperature information of the cookware in multiple preset temperature intervals, the cookware currently in the cooking state can be matched with the preset information in the database multiple times, so as to realize the monitoring of the cooking state of the cookware in multiple stages and further improve the accurate judgment of the cookware material. At the same time, by setting multiple preset temperature intervals, the redundant data caused by continuous detection and the storage space required for it are reduced.

[0032] In some embodiments, the temperature information includes a heating rate. Cookware of different materials has different heating rates due to different heat transfer speeds. Therefore, the value of the heating rate corresponds to the material of the cookware. Here, the heating rate of the cookware is determined based on the heating interval and heating time of the cookware. For example, the first heating interval [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 cookware temperature to rise from T2 to T3, then the heating rate k2 = (T3-T2) / t2. According to the matching of the heating rate of the cookware with the preset information in the database, it is possible to determine the material of the cookware according to the heating rate to set the threshold for preventing dry burning. Optionally, it can also be based on the rate of change of the heating rate, where the rate of change of the heating rate is obtained by the second-order derivative of temperature with respect to time, for example, a0 = (k2-k1) / t2, a0 is the rate of change of the heating rate between T2 and T3. The rate of change of the heating rate can be used to obtain the current heating rate of the cookware. For example, when the rate of change of the heating rate of the cookware is greater than or equal to 0, it means that the cookware still maintains a relatively high heating rate and gradually increases its heating rate over time, or maintains a certain heating rate. When the rate of change of the heating rate of the cookware is less than 0, it means that the heating rate of the cookware has become slower and slower, and the heating change of the cookware may have reached its limit. In this way, by combining multiple parameters of temperature information and their changing trends, and matching them with the preset information in the database, the accurate judgment of the cookware material is further improved to determine the threshold for preventing dry burning.

[0033] In some embodiments, the preset information in the database includes one or more materials of the cookware, the heating rate and temperature threshold corresponding to the cookware of various materials. Thus, by detecting the heating rate of the cookware and matching the corresponding heating rate, the corresponding cookware material and the temperature threshold corresponding to the cookware material can be determined.

[0034] In some embodiments, the temperature threshold includes a first setting value and a temperature threshold corresponding to the material of the cookware; wherein the first setting value is greater than the temperature threshold corresponding to the material of the cookware. Here, the first setting value is used to express the temperature at which some or all of the materials of the cookware are at risk of dry-burning. When the cookware reaches this temperature, continuing to heat it may cause the cookware to dry-burn or even explode.

[0035] Optionally, when the match is successful, the threshold is a temperature threshold corresponding to the material of the cookware; when the match fails, the threshold is the first set value.

[0036] When the temperature information of the pot successfully matches the preset information, for example, the heating rate of the pot matches the heating rate of a pot of a certain material in the database, the temperature threshold corresponding to the material of the pot can be determined as the threshold for preventing dry burning, or the material of the pot and / or its cooking state can be determined according to the preset information to determine the corresponding threshold for preventing dry burning. For example, according to the temperature information of the pot, which can be the change in the temperature range or the preset time period, it is matched with the preset information in the database, and the temperature threshold value corresponding to the preset information is determined as the threshold for preventing dry burning of the stove, or the material of the pot currently in the cooking state is determined to determine the corresponding first set value as the threshold for preventing dry burning. For example, according to the matching of the temperature information and the preset information, the threshold for preventing dry burning is set to 400 degrees. When the temperature of the pot is greater than 400 degrees, the stove is controlled to stop heating, which can prevent the pot from being dry burned. Or according to the matching of the temperature information and the preset information, it is determined that the material of the pot currently in the cooking state is a metal pot, and according to the temperature threshold corresponding to the metal pot, the threshold for preventing dry burning is set to 300 degrees. Alternatively, according to the temperature information of the pot in multiple time intervals or the temperature information of the pot in multiple preset temperature intervals in the temperature information of the pot, the temperature information and its change trend are matched with the preset information in the database, and the threshold corresponding to the matched preset information is determined as the threshold for preventing dry burning of the stove; or the material of the pot corresponding to the matched preset information and the cooking state, such as the degree of doneness of the recipe being cooked, the cooking state with or without water, etc., are determined to determine the threshold for preventing dry burning to control the stove against dry burning. Optionally, when the temperature information of the pot successfully matches the preset information, the material of the pot is determined according to the preset information, and the threshold for preventing dry burning is determined according to the material of the pot. Among them, when it is determined according to the matching result that the pot is a pot of the first material, such as a metal pot, the first threshold corresponding to the metal pot is set as the threshold for preventing dry burning, and a value of 300 degrees is assigned to it; or when it is determined according to the matching result that the pot is a pot of the second material, such as a non-metal pot, the second threshold corresponding to the non-metal pot is determined as the threshold for preventing dry burning, and a value of 400 degrees is assigned to it. Here, the first threshold and the second threshold are two set values ​​of the temperature threshold, which are respectively used to indicate the maximum temperature critical value of the temperature range in which the cookware of the first material can maintain a good use state during the cooking process; and the maximum temperature critical value of the temperature range in which the cookware of the second material can maintain a good use state during the cooking process.

[0037] When the match fails, the threshold is determined to be the first set value. The first 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 second set value is assigned a value of 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 preset information in the database, the anti-dry burning protection of the pot is achieved by setting the first set value.

[0038] In some embodiments, obtaining the temperature information of the pot includes: when the temperature of the pot reaches a preset temperature, detecting the temperature information of the pot. Here, the preset temperature is used to express the temperature range in which some or all of the material pots are in a safe cooking state during the cooking process. Optionally, the preset temperature range is 140 degrees 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, the data detection time can be shortened, and redundant data and the storage space required can be reduced. Optionally, after cooking starts, the current pot temperature can be detected regularly by setting an interval time period to determine whether the preset temperature has been reached, so as to determine when to turn on the anti-dry burning function and detect the temperature information of the pot.

[0039] The control method for preventing dry burning provided by the embodiment of the present disclosure detects the temperature information of the pot, and sets the threshold for preventing dry burning according to the matching of the temperature information of the pot with the preset information in the database. When the temperature of the pot is greater than or equal to the threshold for preventing dry burning, the cooker is controlled to stop heating to prevent the problem of dry burning. Since pots of different materials have different temperature information in the cooking state, accurate prevention of dry burning of pots of different materials is achieved according to the temperature information. By establishing a database, the determination method is simplified and the misjudgment rate of preventing dry burning is effectively reduced.

[0040] The present disclosure provides a control device for preventing dry burning. Figure 2 As shown, including:

[0041] The detection module 200 is configured to obtain the temperature information of the cookware;

[0042] The matching module 210 is configured to determine a temperature threshold value according to a matching condition between the temperature information of the cookware and the preset information in the database;

[0043] The control module 220 is configured to control the cooker to stop heating when the temperature of the cooker is greater than or equal to a temperature threshold.

[0044] The threshold for preventing dry-boiling is determined based on the matching of the heating rate of the temperature information of the pot with the preset information in the database. Pots of different materials have different heating rates due to different heat transfer speeds. Therefore, the value of the heating rate corresponds to the material of the pot. In this way, by combining multiple parameters of the temperature information and their changing trends, and matching them with the preset information in the database, the accurate judgment of the pot material is further improved to determine the threshold for preventing dry-boiling.

[0045] In some embodiments, obtaining the temperature information of the cookware includes: detecting the temperature information of the cookware after the temperature of the cookware reaches a preset temperature. Here, the preset temperature is used to express the temperature range in which some or all of the cookware is in a safe cooking state during the cooking process. Optionally, the preset temperature range is 140 degrees to 230 degrees.

[0046] The control device for preventing dry burning provided by the embodiment of the present disclosure detects the temperature information of the pot, and sets the temperature threshold according to the matching of the temperature information of the pot with the preset information in the database. When the temperature of the pot is greater than or equal to the threshold for preventing dry burning, the cooker is controlled to stop heating to prevent the problem of dry burning. Since pots of different materials have different temperature information in the cooking state, accurate prevention of dry burning of pots of different materials is achieved according to the temperature information. By establishing a database, the determination method is simplified and the misjudgment rate of preventing dry burning is effectively reduced.

[0047] 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 setting the device for preventing dry burning, the stove can be controlled by comparing the temperature information of the pot placed on the stove for cooking with the preset information in the database to determine the threshold for preventing dry burning, thereby preventing the pot from being dry burned, effectively improving the safety of the stove and reducing the misjudgment rate when preventing dry burning.

[0048] 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.

[0049] 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.

[0050] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0051] The present disclosure provides an electronic device, the structure of which is as follows: Figure 3 As shown, the electronic device includes:

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] As used herein, the term "plurality" means two or more than two, unless otherwise specified.

[0063] 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.

[0064] 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; Determine the temperature threshold value according to the matching condition between the temperature information of the cookware and the preset information in the database; When the temperature of the cooker is greater than or equal to the temperature threshold, controlling the cooker to stop heating; The temperature information of the cookware includes a heating rate and a rate of change of the heating rate; the rate of change of the heating rate is used to indicate a changing trend of the heating rate.

2. The control method according to claim 1, characterized in that: The temperature information of the cookware includes the temperature information of the cookware within a preset time period.

3. The control method according to claim 1, characterized in that: The preset time period includes a plurality of spaced time periods.

4. The control method according to claim 1, characterized in that: The temperature information of the cookware includes the temperature information of the cookware within a preset temperature range.

5. The control method according to claim 1, characterized in that: The preset information in the database includes one or more materials of the cookware, and the heating rates and temperature thresholds corresponding to the cookware of various materials.

6. The control method according to claim 1, characterized in that: The temperature threshold includes a first set value and a temperature threshold corresponding to the material of the cookware; Wherein, the first setting value is greater than the temperature threshold corresponding to the material of the cookware.

7. The control method according to any one of claims 1 to 6, characterized in that: The 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.

8. A control device for preventing dry burning, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to perform the method according to any one of claims 1 to 7 when executing the program instructions.

9. A cooking appliance, characterized in that: The invention comprises a control device for preventing dry burning as claimed in claim 8.

Images