Anti-dry burning control method and device, kitchen appliance

Abstract

The present application relates to the technical field of intelligent devices, and discloses a method and device for preventing dry burning control, and a kitchen appliance. The method comprises: obtaining the current temperature of the pot on the kitchen appliance; when the current temperature is greater than the cumulative starting temperature corresponding to the cooking state of the pot, obtaining the current cumulative temperature according to the preset cumulative coefficient, the current temperature, and the saved previous temperature and the previous cumulative temperature; when the current cumulative temperature is greater than the preset dry burning threshold temperature, performing dry burning prevention processing. In this way, early warning is given through the cumulative temperature, which reduces the probability of dry burning of the pot and improves the accuracy of preventing dry burning of the kitchen appliance.

Description

Technical Field

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

[0002] At present, kitchen appliances, such as household gas stoves, induction cookers, etc., all have anti-dry burning functions. Usually, a temperature sensor is used to measure the temperature of the bottom of the pot and compare it with a pre-set single temperature threshold, such as 290 degrees. As long as the temperature of the bottom of the pot is higher than the threshold, dry burning is judged to have occurred.

[0003] However, cookware is made of various materials and there are also various cooking methods for cookware. If only a single temperature threshold is preset, some cookware may dry-burn, or some cookware may not reach the dry-burn stage. As a result, the accuracy of the anti-dry-burn control is not very high. Summary of the invention

[0004] 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.

[0005] The embodiments of the present disclosure provide a method for preventing dry burning, a device for preventing dry burning, and a kitchen appliance to solve the technical problem that the accuracy of preventing dry burning of kitchen appliances needs to be improved.

[0006] In some embodiments, the method comprises:

[0007] Get the current temperature of the pot used in the kitchen appliance;

[0008] When the current temperature is greater than the cumulative starting temperature corresponding to the cooking state of the cookware, the current cumulative temperature is obtained according to a preset cumulative coefficient, the current temperature, and the saved previous temperature and the previous cumulative temperature;

[0009] When the current accumulated temperature is greater than the preset dry-burning threshold temperature, an anti-dry-burning process is performed.

[0010] In some embodiments, the apparatus comprises:

[0011] A temperature acquisition module is configured to acquire the current temperature of the pot on the kitchen appliance;

[0012] a temperature accumulation module, configured to obtain a current accumulated temperature according to a preset accumulation coefficient, the current temperature, and a stored previous temperature and a previous accumulated temperature when the current temperature is greater than an accumulated starting temperature corresponding to a cooking state of the cookware;

[0013] The dry-burn control module is configured to perform dry-burn prevention processing when the current accumulated temperature is greater than a preset dry-burn threshold temperature.

[0014] In some embodiments, the kitchen appliance includes: the above-mentioned anti-dry burning control device.

[0015] The anti-dry-burning control method, anti-dry-burning control device and kitchen appliance provided by the embodiments of the present disclosure can achieve the following technical effects:

[0016] Combined with the cooking status of the pot and the preset cumulative coefficient, the cumulative temperature corresponding to the current temperature of the pot is predicted. Anti-dry-burning treatment is only performed when the predicted cumulative temperature is greater than the preset dry-burning threshold temperature. In this way, early warning is given, the chance of dry-burning of the pot is reduced, and the accuracy of anti-dry-burning of kitchen appliances is improved.

[0017] 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

[0018] 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:

[0019] Figure 1 It is a flow chart of a method for preventing dry burning provided by an embodiment of the present disclosure;

[0020] Figure 2 is a schematic diagram of a flow chart of determining a cumulative starting temperature provided by an embodiment of the present disclosure;

[0021] Figure 3 It is a flow chart of a method for preventing dry burning provided by an embodiment of the present disclosure;

[0022] Figure 4 It is a structural schematic diagram of an anti-dry burning control device provided by an embodiment of the present disclosure;

[0023] Figure 5 It is a structural schematic diagram of an anti-dry burning control device provided by an embodiment of the present disclosure;

[0024] Figure 6 It is a structural schematic diagram of an anti-dry burning control device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] 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.

[0026] Combined with the cooking status of the pot and the preset cumulative coefficient, the cumulative temperature corresponding to the current temperature of the pot is predicted. When the predicted cumulative temperature is greater than the preset dry burning threshold temperature, the anti-dry burning treatment is performed. In this way, early warning is given through the cumulative temperature, which reduces the chance of the pot being dry burned and improves the accuracy of the anti-dry burning of kitchen appliances. In addition, there is no need to detect the material of the pot and the firepower of the kitchen appliance, making the anti-dry burning treatment process relatively simple and improving the efficiency of the anti-dry burning treatment.

[0027] Figure 1 FIG. 1 is a flow chart of a method for preventing dry burning provided by an embodiment of the present disclosure. Figure 1 As shown, the process of dry burning prevention control includes:

[0028] Step 101: Obtain the current temperature of the pot used for cooking on the kitchen appliance.

[0029] In the disclosed embodiment, the kitchen appliance includes: a gas stove, an induction cooker, etc. The current temperature of the pot on the kitchen appliance can be obtained through a temperature sensor, for example: the current temperature of the pot on the kitchen appliance can be obtained through an infrared temperature sensor. Of course, other non-contact temperature sensors can also be used here. The anti-dry-burning control is performed in real time, so the temperature of the pot can be collected according to a preset sampling frequency.

[0030] Step 102: when the current temperature is greater than the cumulative starting temperature corresponding to the cooking state of the cookware, the current cumulative temperature is obtained according to the preset cumulative coefficient, the current temperature, and the saved previous temperature and the previous cumulative temperature.

[0031] In the disclosed embodiment, when the pot is cooking with water, if the water is in a boiling state, it can be determined that the pot is in a boiling cooking state, and other states can be determined as non-boiling cooking states. When the pot is in a boiling state, the temperature change of the pot is relatively small, and the corresponding temperature is the boiling temperature of the pot.

[0032] When the pots on the kitchen appliances are cooking, there is a normal cooking heating stage. Once a limit temperature is exceeded, dry burning may occur, which can be monitored. Therefore, the limit temperature can be determined first, that is, the cumulative starting temperature corresponding to the cooking state of the pot.

[0033] In some embodiments, determining the cumulative starting temperature may include: determining the current cooking state of the cookware, and determining the current cumulative starting temperature corresponding to the current cooking state according to the correspondence between the stored cooking state and the cumulative starting temperature. For example, the preset correspondence between the cooking state of the cookware and the cumulative starting temperature may include: the cumulative starting temperature corresponding to the boiling cooking state is the boiling temperature of the cookware. The cumulative starting temperature corresponding to the non-boiling cooking state may be the boiling temperature plus the set temperature.

[0034] In some embodiments, when the current temperature is greater than the first set temperature and the cookware is in a boiling cooking state, the cumulative starting temperature can be determined according to the boiling temperature of the cookware. When the current temperature is greater than the second set temperature and the cookware is in a non-boiling cooking state, the second set temperature is determined as the cumulative starting temperature, wherein the second set temperature is greater than the first set temperature.

[0035] When the pot is cooked with water, there is generally a corresponding boiling temperature. The boiling temperature may vary according to the type of pot and the firepower of the electric shock device, and the general value may be between 140-240°. In some embodiments of the present disclosure, the first set temperature T1 may be slightly greater than the boiling temperature. When the pot is cooked with water, the boiling temperature corresponding to the collected boiling cooking state will be determined, and then the cumulative starting temperature will be determined according to the boiling temperature. For example, the boiling temperature Tf can be determined as the cumulative starting temperature Tq. Alternatively, in some embodiments, since there is water cooking, when the bottom of the pot is kept boiling, the boiling temperature collected each time will also have some deviations. Therefore, when determining Tq, the boiling temperature can be appropriately compensated, that is, the cumulative starting temperature Tq can be the sum of the boiling temperature Tf and the compensation temperature T3. Preferably, the value of T3 is not less than 0, and the corresponding value range can be between (3-10)°C. Of course, the value of T3 can also be determined based on experiments.

[0036] The second set temperature T2 is greater than the first set temperature T1, and greater than the boiling temperature of the pot. If the boiling temperature is (140-240°C), the value range of T2 can be (270±10)°C, of ​​course, not limited to this, 250°C, 255°C, 285°C. Similarly, the specific T2 value can also be determined through big data collection and analysis. When the pot is in a non-boiling cooking state, the second set temperature T2 can be determined as the cumulative starting temperature Tq.

[0037] Of course, if the current temperature is less than or equal to the first set temperature, it means that there is still some time before the pot is dry-burned, and the possibility of the pot being dry-burned is relatively small. At this time, it is not necessary to accumulate the temperature, so the accumulated starting temperature can be reset to zero. In this way, the accumulated temperature is reset, reducing the probability of misoperation.

[0038] Since the current temperature is greater than the cumulative starting temperature, it is necessary to estimate the corresponding cumulative temperature and make a prediction of dry burning prevention in advance. i , and the previous temperature T i-1 and the previous accumulated temperature Q i-1 , get the current accumulated temperature Q i In some embodiments, the current temperature T i , and the previous temperature T i-1 , get the current temperature difference Δt i =T i -T i-1 ; Then, according to the preset cumulative coefficient n, the current temperature difference Δt i , and the previously saved accumulated temperature Q i-1 , the current accumulated temperature Q is obtained by formula (1) i ;

[0039] Q i =Q i-1 +Sgn(Δt i )*(|Δt i |) n (1)

[0040] Among them, i is the current sampling number, Q i is the current accumulated temperature, Δt i is the current temperature difference, n is the preset cumulative coefficient, Sgn(Δt i ) is the sign of the current temperature difference. If Δt i is greater than or equal to zero, then the corresponding Sgn(Δt i ) is a positive sign, otherwise it is a negative sign. i is an integer greater than or equal to 1.

[0041] n is a preset cumulative coefficient. Generally, n is a real number greater than 1. The larger the value, the faster the accumulation speed, and the faster the dry burning judgment can be completed. Since a temperature acquisition must be performed before each accumulation to obtain the current temperature of the pot, the temperature sampling frequency is equivalent to the frequency of calling the above formula for calculation. The frequency of temperature sampling also affects the speed of accumulation. When the sampling frequency increases, the rapid acquisition will result in a smaller temperature difference collected each time, and the final cumulative temperature value Q will also be smaller. Of course, when the sampling frequency decreases, the Q value should increase. In some embodiments, through the analysis of big data, the frequency of temperature sampling can be controlled between 0.25HZ-0.5HZ. Of course, the specific sampling frequency and cumulative coefficient n are different according to different kitchen appliances and can be configured before leaving the factory. For example: if the sampling frequency is 0.5HZ, the value range of n can be 1.5-3.

[0042] Of course, when the temperature is accumulated for the first time, Δt i = 0, and the current accumulated temperature is the accumulated starting temperature. Then, based on the first accumulated temperature, the accumulation is continued according to formula (1) to obtain the current accumulated temperature of each collection.

[0043] Step 103: When the current accumulated temperature is greater than the preset dry-burning threshold temperature, an anti-dry-burning process is performed.

[0044] The current accumulated temperature corresponding to this collection is accumulated by the preset accumulated coefficient, so that the current accumulated temperature is compared with the preset dry burning threshold temperature. If the current accumulated temperature is greater than the preset dry burning threshold temperature, the dry burning prevention process can be performed. The specific dry burning prevention process can adopt the existing related dry burning prevention process, including at least one of the following methods: shutting off the gas source, power supply, sound and light alarm, sending warning information to the control terminal, network alarm, etc.

[0045] It can be seen that in this embodiment, the cumulative temperature corresponding to the current temperature of the pot is predicted in combination with the cooking state of the pot and the preset cumulative coefficient. When the predicted cumulative temperature is greater than the preset dry burning threshold temperature, the dry burning prevention process is performed. In this way, early warning is given, the probability of dry burning of the pot is reduced, and the accuracy of the dry burning prevention of the kitchen appliance is improved. In addition, there is no need to detect the material of the pot and the firepower of the kitchen appliance, which makes the dry burning prevention process simpler and improves the efficiency of the dry burning prevention process.

[0046] Of course, after obtaining the current accumulated temperature, it is necessary to save the current temperature and the current accumulated temperature. In this way, the temperature can be accumulated the next time the temperature is collected, thus ensuring the continuity of the dry burning warning.

[0047] The operation flow is collected into a specific embodiment below to illustrate the anti-dry burning control process provided by the embodiment of the present invention.

[0048] In the disclosed embodiment, the accumulated starting temperature corresponding to the cooking state of the cookware may be extracted for configuration, or may be determined based on the collected temperature.

[0049] Figure 2 FIG. 1 is a flow chart of determining a cumulative starting temperature provided by an embodiment of the present disclosure. Figure 2 As shown, the process of determining the cumulative starting temperature includes:

[0050] Step 201: Determine whether the collected temperature is greater than the first set temperature T1. If yes, execute step 202; otherwise, execute step 206.

[0051] Step 202: Determine whether the cooker is in a boiling cooking state. If yes, execute step 203; otherwise, execute step 204.

[0052] Step 203: The sum of the boiling temperature of the cookware and the preset compensation temperature is determined as the cumulative starting temperature.

[0053] Step 204: Determine whether the collected temperature is greater than the second set temperature T2. If so, execute step 205; otherwise, this process ends.

[0054] Step 205: Determine the second set temperature T2 as the cumulative start temperature.

[0055] Step 206: clearing the accumulated starting temperature.

[0056] It can be seen that different cooking states of the cookware correspond to different cumulative starting temperatures. Therefore, the cumulative temperature of the cookware is predicted in combination with the cooking state of the cookware, thereby improving the accuracy of the cumulative temperature pre-storage.

[0057] Figure 3 FIG. 1 is a flow chart of a method for preventing dry burning provided by an embodiment of the present disclosure. Figure 3 As shown, the process of dry burning prevention control includes:

[0058] Step 301: Obtain the current temperature T of the pot on the gas cooker according to the sampling frequency of 0.5 Hz i .

[0059] Step 302: Determine whether the accumulated starting temperature Tq is equal to zero. If not, execute step 303; if so, execute step 309.

[0060] Here, the accumulated starting temperature Tq corresponds to the cooking state of the cookware, and can be preset in advance according to the cooking state, or determined according to the above steps 201-206.

[0061] Step 303: Determine the current temperature Ti Is it greater than the accumulated starting temperature Tq? If so, execute step 304; otherwise, return to step 301.

[0062] Step 304: According to the current temperature T i , and the previous temperature T i-1 , get the current temperature difference Δt i .

[0063] Step 305: According to the preset cumulative coefficient n, the current temperature difference Δt i , and the previously saved accumulated temperature Q i-1 , get the current accumulated temperature Q i .

[0064] Here, the current accumulated temperature Q can be obtained by formula (1): i .

[0065] Q i =Q i-1 +Sgn(Δt i )*(|Δt i |) n (1)

[0066] Among them, Sgn(Δt i ) is the sign of the current temperature difference. If Δt i is greater than or equal to zero, then the corresponding Sgn(Δt i ) is positive, otherwise it is negative.

[0067] Step 306: Save the current temperature Ti and the current accumulated temperature Q i .

[0068] Step 307: Determine the current accumulated temperature Q i Is it greater than the preset dry-burning threshold temperature? If so, execute step 308; otherwise, return to step 301.

[0069] Step 308: Cut off the gas source of the gas cooker and give an audible and visual warning.

[0070] Step 309: The current accumulated temperature Q i Cleared.

[0071] It can be seen that in the disclosed embodiment, the cumulative temperature corresponding to the current temperature of the pot is predicted in combination with the cooking state of the pot and the preset cumulative coefficient. When the predicted cumulative temperature is greater than the preset dry burning threshold temperature, the dry burning prevention process is performed. In this way, early warning is given, the probability of dry burning of the pot is reduced, and the accuracy of dry burning prevention of kitchen appliances is improved. In addition, when the current temperature is less than Tq, no accumulation is performed. In the case of repeated temperature fluctuations, such as small stoves / waterless cooking, which are prone to repeated temperature fluctuations, the accumulation speed is slowed down to avoid misjudgment.

[0072] According to the above-mentioned process of anti-dry burning control, a device for anti-dry burning control can be constructed.

[0073] Figure 4 Schematic diagram of a dry burning prevention control device provided by an embodiment of the present disclosure. Figure 4 As shown, the anti-dry burning control device includes: a temperature acquisition module 410 , a temperature accumulation module 420 and a dry burning control module 430 .

[0074] The temperature acquisition module 410 is configured to acquire the current temperature of the pot being cooked on the kitchen appliance.

[0075] The temperature accumulation module 420 is configured to obtain the current accumulated temperature according to the preset accumulation coefficient, the current temperature, and the saved previous temperature and the previous accumulated temperature when the current temperature is greater than the accumulated starting temperature corresponding to the cooking state of the cookware.

[0076] The dry-burn control module 430 is configured to perform dry-burn prevention processing when the current accumulated temperature is greater than a preset dry-burn threshold temperature.

[0077] In some embodiments, the apparatus further comprises:

[0078] The first starting determination module is configured to determine the cumulative starting temperature according to the boiling temperature of the cookware when the current temperature is greater than the first set temperature and the cookware is in a boiling cooking state.

[0079] The second starting determination module is configured to determine the second set temperature as the cumulative starting temperature when the current temperature is greater than the second set temperature and the cookware is in a non-boiling cooking state, wherein the second set temperature is greater than the first set temperature.

[0080] In some embodiments, the device further includes: a zeroing module configured to clear the accumulated starting temperature when the current temperature is less than or equal to the first set temperature.

[0081] In some embodiments, the temperature accumulation module 420 is configured to obtain the current temperature difference value according to the current temperature and the previous temperature stored; obtain the current accumulated temperature according to the preset accumulation coefficient, the current temperature difference value, and the previous accumulated temperature stored by formula (1);

[0082] Q i =Q i-1 +Sgn(Δt i )*(|Δt i |) n (1)

[0083] Among them, i is the current sampling number, Q i is the current accumulated temperature, Δt i is the current temperature difference, n is the preset cumulative coefficient, Sgn(Δt i ) is the sign of the current temperature difference.

[0084] In some embodiments, the device includes: a saving module configured to save the current temperature and the current accumulated temperature.

[0085] The following example illustrates the anti-dry burning control process performed by the anti-dry burning control device provided in the embodiment of the present disclosure.

[0086] Figure 5 Schematic diagram of a dry burning prevention control device provided by an embodiment of the present disclosure. Figure 5 As shown, the anti-dry burning control device includes: a temperature acquisition module 410, a temperature accumulation module 420 and a dry burning control module 430, and also includes: a first start determination module 440, a second start determination module 450, a clearing module 460 and a saving module 470.

[0087] The temperature acquisition module can obtain the current temperature T of the pot on the stove according to the set sampling frequency. i . If the current temperature is greater than the first set temperature and the cookware is in a boiling cooking state, the first start determination module 440 may determine the sum of the boiling temperature of the cookware and the preset compensation temperature as the cumulative start temperature. If the current temperature is greater than the second set temperature and the cookware is in a non-boiling cooking state, the second start determination module 450 may determine the second set temperature T2 as the cumulative start temperature. If the current temperature is less than or equal to the first set temperature, the clearing module 460 may clear the cumulative start temperature.

[0088] Thus, when the current temperature is greater than the cumulative starting temperature, the temperature accumulation module 420 can obtain the current temperature difference Δt according to the current temperature and the previous temperature stored. i , and according to the preset cumulative coefficient n, the current temperature difference Δt i, and the previously saved cumulative temperature Q i-1 , via Q i =Q i-1 +Sgn(Δt i )*(|Δt i |) n , get the current accumulated temperature Q i .

[0089] Furthermore, the storage module 470 may also store the current temperature and the current accumulated temperature.

[0090] When the current accumulated temperature is greater than the preset dry-burning threshold temperature, the dry-burning control module can cut off the energy of the stove, issue an audible and visual warning, and send a prompt message to the user terminal.

[0091] Of course, when the accumulated starting temperature is zero, the reset module 460 may also reset the accumulated temperature to zero.

[0092] It can be seen that in this embodiment, the anti-dry-burn control device combines the cooking state of the pot and the preset cumulative coefficient to predict the cumulative temperature corresponding to the current temperature of the pot. When the predicted cumulative temperature is greater than the preset dry-burn threshold temperature, the anti-dry-burn process is performed. In this way, early warning is given, the probability of the pot being dry-burned is reduced, and the accuracy of anti-dry-burning of kitchen appliances is improved. In addition, when the current temperature is less than the cumulative starting temperature, no accumulation is performed. In the case of repeated temperature fluctuations, such as small stoves / waterless cooking, which are prone to repeated temperature fluctuations, the accumulation speed is slowed down to avoid misjudgment.

[0093] The present disclosure provides a device for preventing dry burning control, the structure of which is as follows: Figure 6 As shown, including:

[0094] The processor 100 and the memory 101 may further include a communication interface 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other through the bus 103. The communication interface 102 may be used for information transmission. The processor 100 may call the logic instructions in the memory 101 to execute the anti-dry burning control method of the above embodiment.

[0095] In addition, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0096] The memory 101 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 100 executes the function application and data processing by running the program instructions / modules stored in the memory 101, that is, the method for preventing dry burning control in the above method embodiment is implemented.

[0097] The memory 101 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 101 may include a high-speed random access memory and may also include a non-volatile memory.

[0098] An embodiment of the present disclosure provides a kitchen appliance, comprising the above-mentioned anti-dry-burning control device.

[0099] 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 anti-dry burning control method.

[0100] An embodiment of the present disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the above-mentioned anti-dry burning control method.

[0101] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

Claims

1. A method for preventing dry burning, characterized in that: include: Get the current temperature of the pot used in the kitchen appliance; When the current temperature is greater than the cumulative starting temperature corresponding to the cooking state of the cookware, the current cumulative temperature is obtained according to a preset cumulative coefficient, the current temperature, and the saved previous temperature and the previous cumulative temperature; When the current accumulated temperature is greater than the preset dry burning threshold temperature, performing dry burning prevention processing; Wherein, before obtaining the current cumulative temperature, the process of determining the cumulative starting temperature corresponding to the cooking state of the cookware includes: When the current temperature is greater than the first set temperature and the cookware is in a boiling cooking state, determining the accumulated starting temperature according to the boiling temperature of the cookware; When the current temperature is greater than a second set temperature and the cookware is in a non-boiling cooking state, determining the second set temperature as the accumulated starting temperature, wherein the second set temperature is greater than the first set temperature; Then, obtaining the current accumulated temperature includes: According to the current temperature and the previous temperature saved, the current temperature difference is obtained; According to the preset cumulative coefficient, the current temperature difference, and the previously saved cumulative temperature, the current cumulative temperature is obtained by formula (1); Q i =Q i-1 +Sgn(Δt i )*(|Δt i |) n (1) Among them, i is the current sampling number, Q i is the current accumulated temperature, Δt i is the current temperature difference, n is the preset cumulative coefficient, Sgn(Δt i ) is the sign of the current temperature difference.

2. The method according to claim 1, characterized in that The method further comprises: When the current temperature is less than or equal to the first set temperature, the accumulated starting temperature is cleared.

3. The method according to claim 1, characterized in that After obtaining the current accumulated temperature, the method further includes: The current temperature and the current accumulated temperature are saved.

4. A device for preventing dry burning, characterized in that: include: A temperature acquisition module is configured to acquire the current temperature of the pot on the kitchen appliance; a temperature accumulation module, configured to obtain a current accumulated temperature according to a preset accumulation coefficient, the current temperature, and a stored previous temperature and a previous accumulated temperature when the current temperature is greater than an accumulated starting temperature corresponding to a cooking state of the cookware; A dry burning control module, configured to perform dry burning prevention processing when the current accumulated temperature is greater than a preset dry burning threshold temperature; a first starting determination module, configured to determine the accumulated starting temperature according to the boiling temperature of the cookware when the current temperature is greater than a first set temperature and the cookware is in a boiling cooking state; A second starting determination module is configured to determine a second set temperature as the accumulated starting temperature when the current temperature is greater than a second set temperature and the cookware is in a non-boiling cooking state, wherein the second set temperature is greater than the first set temperature; The temperature accumulation module is specifically configured to obtain the current temperature difference value according to the current temperature and the previous temperature saved; and obtain the current accumulated temperature by formula (1) according to the preset accumulation coefficient, the current temperature difference value, and the previous accumulated temperature saved; Q i =Q i-1 +Sgn(Δt i )*(|Δt i |) n (1) Among them, i is the current sampling number, Q i is the current accumulated temperature, Δt i is the current temperature difference, n is the preset cumulative coefficient, Sgn(Δt i ) is the sign of the current temperature difference.

5. A dry burning prevention control device, 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 3 when executing the program instructions.

6. A kitchen appliance, characterized in that: Comprising the device as claimed in claim 4 or 5.

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