Method and device for controlling stove to automatically turn off fire and electronic equipment

Abstract

The invention discloses a method and device for controlling a cooker to automatically turn off fire and electronic equipment, and the method comprises the steps: obtaining scene information of a cooking scene in response to a cooking mode selection operation of a target object; searching an initial temperature rise weight corresponding to the scene information from a preset temperature rise weight library; obtaining a target fire turn-off threshold value corresponding to the cooking scene; the target fire turn-off threshold value is determined based on cooking feedback information of historical dishes; adjusting the initial temperature rise weight based on the offset between the target fire turn-off threshold value and the basic fire turn-off threshold value to obtain a target temperature rise weight; in the process of controlling the cooker to cook according to the target cooking mode, determining a comprehensive risk value based on the real-time temperature, the real-time temperature rise rate and the target temperature rise weight of the target cooking utensil; if the comprehensive risk value is larger than or equal to the target fire turning-off threshold value, the stove is controlled to execute automatic fire turning-off, and according to the method, the fire turning-off opportunity of automatic fire turning-off of the stove can adapt to different cooking scenes and personalized fire turning-off requirements of the target object.

Description

Technical Field

[0001] This application belongs to the field of smart kitchen appliance technology, and in particular relates to a method, device and electronic device for controlling the automatic shut-off of a stove. Background Technology

[0002] With the development of IoT technology, smart home security is receiving increasing attention. Existing technology allows for the installation of automatic shut-off functions in cooktops. When the temperature of the cooking appliances on the cooktop reaches a certain threshold, the cooktop automatically shuts off, thus preventing dry burning.

[0003] However, current anti-dry-burning stoves generally adopt a fixed-parameter anti-dry-burning strategy, which uses a temperature sensor to monitor the cooking temperature in real time. When the temperature reaches a preset threshold or the rate of temperature rise exceeds a fixed value, a flame-off mechanism is triggered. This solution relies on preset, uniform parameters, making it difficult to adapt to different cooking scenarios and users' personalized flame-off needs.

[0004] Therefore, how to make the automatic shut-off timing of the stove adaptable to different cooking scenarios and the personalized shut-off needs of the target audience is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] This application provides a method, device, and electronic device for controlling the automatic shut-off of a stove, enabling the stove to automatically shut off at different cooking scenarios and meet the personalized shut-off needs of the target audience.

[0006] On one hand, embodiments of this application provide a method for controlling a stove to automatically shut off, the method comprising: In response to the cooking mode selection operation of the target object, the scene information of the cooking scene is obtained; the scene information includes the target cooking mode and the utensil identifier of the target cooking utensil. The initial temperature rise weight corresponding to the scenario information is retrieved from the preset temperature rise weight library; the initial temperature rise weight represents the importance of the real-time temperature rise rate in determining the timing of turning off the heat in the cooking scenario. Obtain the target shut-off threshold corresponding to the cooking scenario; the target shut-off threshold is determined based on the cooking feedback information of the target object on historical dishes; the historical dishes are those cooked by the stove in the cooking scenario according to the initial shut-off threshold; Based on the offset between the target shut-off threshold and the basic shut-off threshold, the initial temperature rise weight is adjusted to obtain the target temperature rise weight; During the process of controlling the stove to cook according to the target cooking mode, a comprehensive risk value is determined based on the real-time temperature of the target cooking appliance, the real-time temperature rise rate, and the target temperature rise weight. If the overall risk value is greater than or equal to the target shut-off threshold, the stove is controlled to automatically shut off.

[0007] In one exemplary embodiment, adjusting the initial temperature rise weight based on the offset between the target shut-off threshold and the base shut-off threshold to obtain the target temperature rise weight includes: Determine the threshold offset of the target shutdown threshold relative to the base shutdown threshold; The weight offset corresponding to the threshold offset is determined according to a preset offset mapping relationship; the preset offset mapping relationship is the mapping relationship between a preset threshold offset and a preset weight offset. Based on the weight offset and the basic temperature rise weight, the initial temperature rise weight is adjusted to obtain the target temperature rise weight, and the target temperature rise weight is used again as the initial temperature rise weight corresponding to the scene information and stored in the preset temperature rise weight library.

[0008] In one exemplary embodiment, the process of constructing the preset offset mapping relationship includes: Acquire multiple sets of test cooking data; each set of test cooking data includes the test shut-off threshold under the test cooking scenario and the test risk score of the stove cooking according to the test shut-off threshold; For each set of test cooking data, determine the test threshold offset of the test turn-off threshold relative to the base turn-off threshold, and determine the test weight offset based on the initial offset ratio and the test threshold offset; The predicted score is determined based on the initial offset ratio, the test weight offset, and the test temperature rise weight. Based on the differences between multiple sets of predicted scores and test scores, the target offset ratio is determined, and the preset offset mapping relationship is constructed based on the target offset ratio.

[0009] In one exemplary embodiment, obtaining the target turn-off threshold corresponding to the cooking scenario includes: Obtain the cooking feedback information of the target object on historical dishes; the historical dishes are those cooked by the stove in the cooking scenario according to the initial turn-off threshold; If the cooking feedback information indicates that the stove needs to be turned off later, the initial turn-off threshold is increased by a preset step size. If the cooking feedback information indicates that the stove needs to be turned off in advance, the initial turn-off threshold is reduced by a preset step size. The increased or decreased initial shutdown threshold is determined as the target shutdown threshold.

[0010] In one exemplary embodiment, obtaining the target turn-off threshold corresponding to the cooking scenario further includes: Use the initial shutdown threshold as the current shutdown threshold; In response to the delayed shut-off command of the stove, the current shut-off threshold is increased by a preset increment, and the increased shut-off threshold is redefined as the current shut-off threshold. In response to the early shut-off command of the stove, the current shut-off threshold is reduced by a preset reduction step size, and the reduced shut-off threshold is redefined as the current shut-off threshold. In response to a threshold determination command for the stove, the current shut-off threshold is determined as the target shut-off threshold.

[0011] In one exemplary embodiment, the appliance identifier further includes material information of the target cooking appliance; the determination of the comprehensive risk value based on the real-time temperature, real-time temperature rise rate, and target temperature rise weight of the target cooking appliance includes: The safe temperature of the target cooking appliance is determined based on the material information. The ratio between the real-time temperature and the safe temperature is determined as the first risk value; The product between the real-time temperature rise rate and the target temperature rise weight is determined as the second risk value; The comprehensive risk value is determined based on the first risk value and the second risk value.

[0012] In one exemplary embodiment, obtaining scene information of the cooking scene in response to the cooking mode selection operation of the target object includes: In response to the cooking mode selection operation of the target object, the target cooking mode is acquired, and the radar device is controlled to send a radar transmission signal to the target cooking appliance; Receive radar reflection signals reflected by the target cooking appliance; The material and shape information of the target cooking appliance are determined based on the radar reflection signal; The group corresponding to the material information is matched from the preset cooking utensil library, and the target cooking utensil corresponding to the shape information is matched from the group to obtain the utensil identifier; The target cooking mode and the appliance identifier of the target cooking appliance are determined as the scene information of the cooking scene.

[0013] On the other hand, this application also provides a device for controlling the automatic shut-off of a stove, the device comprising: The scene information acquisition module is used to acquire scene information of the cooking scene in response to the cooking mode selection operation of the target object; the scene information includes the target cooking mode and the utensil identifier of the target cooking utensil. The initial temperature rise weight determination module is used to search for the initial temperature rise weight corresponding to the scenario information from a preset temperature rise weight library; the initial temperature rise weight represents the importance of the real-time temperature rise rate in determining the timing of turning off the heat in the cooking scenario. The target shut-off threshold acquisition module is used to acquire the target shut-off threshold corresponding to the cooking scenario; the target shut-off threshold is determined based on the cooking feedback information of the target object on historical dishes; the historical dishes are those cooked by the stove in the cooking scenario according to the initial shut-off threshold; The temperature rise weight adjustment module is used to adjust the initial temperature rise weight based on the offset between the target shut-off threshold and the basic shut-off threshold to obtain the target temperature rise weight. The comprehensive risk value determination module is used to determine the comprehensive risk value based on the real-time temperature, real-time temperature rise rate and target temperature rise weight of the target cooking appliance during the cooking process of the controlled stove according to the target cooking mode. The flameout control module is used to control the stove to automatically shut off if the comprehensive risk value is greater than or equal to the target flameout threshold.

[0014] On the other hand, this application also provides an electronic device, which includes a processor and a memory, wherein the memory stores at least one instruction or at least one program, and the at least one instruction or the at least one program is loaded and executed by the processor to realize the method of controlling the stove to automatically turn off as described above.

[0015] On the other hand, this application also provides a computer storage medium storing at least one instruction or at least one program, which is loaded and executed by a processor to implement the method of controlling the stove to automatically turn off as described above.

[0016] On the other hand, this application also provides a computer program product or computer program that includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the method described above for controlling the automatic shut-off of the stove.

[0017] The method for controlling the automatic shut-off of a stove provided in this application has the following technical effects: This application responds to the cooking mode selection operation of the target object by obtaining scene information of the cooking scenario, including the target cooking mode and the appliance identifier of the target cooking appliance. Then, it searches for the initial temperature rise weight corresponding to the scene information from a preset temperature rise weight library; obtains the target shut-off threshold corresponding to the cooking scenario; adjusts the initial temperature rise weight based on the offset between the target shut-off threshold and the basic shut-off threshold to obtain the target temperature rise weight; during the process of controlling the stove to cook according to the target cooking mode, a comprehensive risk value is determined based on the real-time temperature of the target cooking appliance, the real-time temperature rise rate, and the target temperature rise weight; by comprehensively considering the actual temperature and temperature rise rate, the comprehensive risk value can accurately characterize the temperature characteristics of the cookware during cooking, making the subsequently determined shut-off timing safer. If the comprehensive risk value is greater than or equal to the target shut-off threshold, the stove is controlled to automatically shut off, effectively ensuring cooking safety while allowing the stove's automatic shut-off timing to adapt to different cooking scenarios and users' personalized shut-off needs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an application environment diagram of the method for controlling the automatic shut-off of a stove provided in the embodiments of this application; Figure 2 This is a flowchart illustrating the method for controlling the automatic shut-off of a stove according to an embodiment of this application; Figure 3 This is a flowchart illustrating the process of determining the target shutdown threshold provided in an embodiment of this application; Figure 4 This is a schematic diagram of the process for adjusting the temperature rise weight provided in an embodiment of this application; Figure 5 This is a schematic diagram of the process for determining the comprehensive risk value provided in the embodiments of this application; Figure 6 This is a schematic diagram of the device for controlling the automatic shut-off of a stove provided in an embodiment of this application; Figure 7 This is a hardware structure block diagram of a server for a method of controlling a stove to automatically shut off, as provided in an embodiment of this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0022] Figure 1 This is an application environment diagram of the method for controlling the automatic shut-off of a stove provided in the embodiments of this application.

[0023] like Figure 1 As shown, the application environment may include at least a stove 01 and a terminal device 02.

[0024] In an optional embodiment, the cooktop 01 can be used to respond to the cooking mode selection operation of the target object, obtain scene information of the cooking scene and the corresponding target shut-off threshold, calculate the comprehensive risk value in real time during the cooking process, and execute automatic shut-off when the comprehensive risk value is greater than or equal to the target shut-off threshold.

[0025] In an optional embodiment, the terminal device 02 can receive the evaluation feedback of the target object on the dishes obtained by automatic fire extinguishing cooking, and send the cooking feedback information to the cooking appliance 01 so that the cooking appliance 01 adjusts the initial fire extinguishing threshold to obtain the target fire extinguishing threshold, and performs cooking and automatic fire extinguishing according to the target fire extinguishing threshold in the next same cooking scenario. Specifically, the terminal device 02 can include, but is not limited to, electronic devices such as smart phones, desktop computers, tablet computers, laptop computers, smart speakers, digital assistants, augmented reality (AR) / virtual reality (VR) devices, smart wearable devices, vehicle-mounted terminals, smart TVs, etc.; it can also be software running on the above electronic devices, such as application programs, applets, etc. The operating systems running on the electronic devices in the embodiments of the present application can include, but are not limited to, Android system, IOS system, linux, windows, etc.

[0026] It should be noted that the application environment can also include a server 03. For example, the terminal device 02 can send the evaluation feedback information to the server 03, and the server 03 determines the target fire extinguishing threshold and sends it to the cooking appliance 01. In the embodiments of the present application, the cooking appliance 01 is used as the execution subject to illustrate the method for controlling the automatic fire extinguishing of the cooking appliance.

[0027] Figure 2 It is a schematic flowchart of the method for controlling the automatic fire extinguishing of the cooking appliance provided by the embodiments of the present application.

[0028] S201: In response to the cooking mode selection operation of the target object, obtain the scene information of the cooking scenario; Wherein, the scene information includes the target cooking mode and the appliance identifier of the target cooking appliance; The target object can be a user who needs to cook dishes, or a smart robot, etc. The target object can perform a cooking mode selection operation on the interaction interface of the cooking appliance, or perform a cooking mode selection operation in the mobile terminal application program supporting the cooking appliance. In one example, the cooking mode can be frying, frying, stewing, boiling and other modes. It should be noted that the target cooking appliance can be a pot placed on the cooking appliance, etc. The target cooking appliance can also be a pot suitable for the target cooking mode automatically matched after the target object determines the target cooking mode, and is automatically placed on the cooking appliance.

[0029] The appliance identifier is used to uniquely identify the cooking appliance. The appliance identifier of the cooking appliance can be combined with the material information and the number, for example, iron pot 001, iron pot 002, casserole 001, etc. It should be noted that the present application does not limit the specific representation method of the appliance identifier.

[0030] In one embodiment, corresponding mode codes can also be set for each cooking mode, such as 01 for stewing mode, 02 for frying mode, and 03 for boiling mode, thereby reducing the resources occupied by data storage.

[0031] S203: Search for the initial temperature rise weight corresponding to the scenario information from the preset temperature rise weight library; the initial temperature rise weight represents the importance of the real-time temperature rise rate in determining the timing of turning off the heat in the cooking scenario. The preset temperature rise weight library can be stored in flash memory or read-only memory (ROM). The library includes the correspondence between preset scene information and initial temperature rise weights. For example, the initial temperature rise weight for the preset scene information "Iron Pot 001, Frying 02" could be 1.8; the initial temperature rise weight for the preset scene information "Clay Pot 002, Stewing 01" could be 0.3; the initial temperature rise weight for the preset scene information "Iron Pot 001, Stewing 01" could be 0.6; and the temperature rise weight for the preset scene information "Clay Pot 002, Boiling 03" could be 0.4, and so on. It should be noted that the correspondence in the preset temperature rise weight library is set based on the thermal conductivity characteristics of the cooking utensil (e.g., clay pots heat slowly, iron pots heat quickly) and the temperature rise characteristics of the cooking mode (e.g., stewing mode requires stable heating, frying mode requires rapid heating). For example, the preset scenario information is "Iron Pot 001, Frying 02". Iron pots conduct heat quickly, and frying mode requires rapid heating. Therefore, more attention needs to be paid to the real-time temperature rise rate during cooking. Thus, the initial temperature rise weight corresponding to this scenario information is set relatively high to accurately determine when to turn off the heat. Conversely, for the preset scenario information "Clay Pot 002, Stewing 01", clay pots conduct heat slowly, and stewing mode requires maintaining a stable temperature. Therefore, less attention needs to be paid to the real-time temperature rise rate during cooking. Thus, the initial temperature rise weight corresponding to this scenario information is set relatively low to accurately determine when to turn off the heat.

[0032] S205: Obtain the target shut-off threshold corresponding to the cooking scenario; the target shut-off threshold is determined based on the cooking feedback information of the target object on historical dishes; the historical dishes are those cooked by the stove in the cooking scenario according to the initial shut-off threshold; Different cooking utensils have varying heat conduction characteristics due to their different materials (iron pot, earthenware pot, non-stick pan) and shapes (flat bottom, concave bottom). Earthenware pots have a gentler temperature rise curve and a higher temperature during the plateau period, while iron pots heat up rapidly. Furthermore, the safe temperature and temperature rise characteristics of the same cooking utensil differ depending on the cooking mode (frying, deep-frying, stewing, boiling). Therefore, using a uniform threshold for automatic shut-off results in poor parameter adaptability, easily leading to situations like misjudging dry burning before the earthenware pot has boiled, or delayed high-temperature warnings for iron pots. It also fails to achieve intelligent adjustment for different cooking modes.

[0033] In this application, the target shut-off threshold corresponds one-to-one with the cooking scenario. That is, different cooking modes of different cooking pots correspond to different shut-off thresholds, so that the timing of shutting off can be adapted to different cooking scenarios. For example, in the cooking mode of "frying", a higher shut-off threshold can be obtained by adjustment, which can avoid frequent shut-off affecting the cooking experience.

[0034] The target shut-off threshold can be adjusted based on the target user's feedback on historical cooking of dishes. It's important to note that the initial shut-off threshold can be obtained by querying a preset threshold table, which records the most recent shut-off threshold used in different cooking scenarios. In one example, suppose that in the most recent cooking process of cooking scenario A, the stove used a shut-off threshold of 1 to automatically shut off, resulting in dish a. If the target user's feedback on dish a indicates a desire for a delayed shut-off (e.g., a higher temperature rise rate during frying), then based on this feedback, the shut-off threshold of 1 is increased to obtain the target shut-off threshold. This target threshold is then used to automatically shut off the stove in the current cooking scenario A to meet the user's personalized shut-off timing requirements. After cooking using the target shut-off threshold is completed, the target shut-off threshold can replace the initial shut-off threshold (shut-off threshold 1) and be saved in the preset threshold table.

[0035] S207: Based on the offset between the target shutdown threshold and the basic shutdown threshold, adjust the initial temperature rise weight to obtain the target temperature rise weight; It should be noted that the basic shut-off threshold is a threshold set at the factory when the stove leaves the factory. This basic shut-off threshold can correspond one-to-one with each cooking mode. Subsequently, the basic shut-off threshold can be adjusted according to the individual needs of the target user to obtain the target shut-off threshold, establishing a correspondence between different cooking scenarios. In one example, the basic shut-off threshold for the frying mode could be 0.7. It should also be noted that, to ensure safety, when determining the target shut-off threshold in step S206, the offset between the target shut-off threshold and the basic shut-off threshold must be within a preset adjustment range. Specifically, the preset adjustment range can be a fluctuation of 30% above or below the basic shut-off threshold.

[0036] The initial temperature rise weight can be adjusted by the offset between the target temperature turn-off threshold and the basic temperature turn-off threshold, thus obtaining the target temperature rise weight. This allows for dynamic adjustment of the weight, which is beneficial for determining the accurate time to turn off the heat to meet the personalized cooking needs of the target user.

[0037] S209: During the process of controlling the stove to cook according to the target cooking mode, a comprehensive risk value is determined based on the real-time temperature of the target cooking appliance, the real-time temperature rise rate, and the target temperature rise weight; In one implementation, the cooktop can be pre-set with a power output corresponding to the cooking mode to achieve automatic cooking; in another implementation, the cooktop's power output can be customized by the target object. During cooking, this application collects the temperature and temperature rise rate of the cooking appliance in real time, and combines this with a dynamically adjusted target temperature rise weight to determine the comprehensive risk value during cooking. By comprehensively considering the actual temperature and temperature rise rate, the comprehensive risk value can accurately characterize the temperature characteristics of the cookware during cooking, making the subsequent determination of when to turn off the heat safer.

[0038] S211: If the comprehensive risk value is greater than or equal to the target shut-off threshold, control the stove to automatically shut off.

[0039] If the overall risk value is detected to be greater than or equal to the target shut-off threshold, that moment will be determined as the shut-off time, and the stove will be controlled to automatically shut off to ensure the safety of the cooking process.

[0040] In this embodiment, in response to the cooking mode selection operation of the target object, scene information of the cooking scenario is obtained; this scene information includes the target cooking mode and the appliance identifier of the target cooking appliance; then, the initial temperature rise weight corresponding to the scene information is searched from the preset temperature rise weight library; the target shut-off threshold corresponding to the cooking scenario is obtained; based on the offset between the target shut-off threshold and the basic shut-off threshold, the initial temperature rise weight is adjusted to obtain the target temperature rise weight; during the process of controlling the stove to cook according to the target cooking mode, a comprehensive risk value is determined based on the real-time temperature, real-time temperature rise rate, and target temperature rise weight of the target cooking appliance; by comprehensively considering the actual temperature and temperature rise rate, the comprehensive risk value can accurately characterize the temperature characteristics of the cookware during cooking, making the subsequently determined shut-off time safer. If the comprehensive risk value is greater than or equal to the target shut-off threshold, the stove is controlled to automatically shut off, effectively ensuring cooking safety while allowing the stove's automatic shut-off time to adapt to different cooking scenarios and users' personalized shut-off needs.

[0041] In one embodiment, obtaining scene information of a cooking scene in response to a cooking mode selection operation of a target object may include: obtaining a target cooking mode in response to the cooking mode selection operation of the target object, and controlling a radar device to emit a radar transmission signal to the target cooking appliance; receiving a radar reflection signal reflected by the target cooking appliance; determining the material information and shape information of the target cooking appliance based on the radar reflection signal; matching a group corresponding to the material information from a preset cooking appliance library, and matching a target cooking appliance corresponding to the shape information from the group to obtain the appliance identifier; and determining the target cooking mode and the appliance identifier of the target cooking appliance as the scene information of the cooking scene.

[0042] The radar device can be millimeter-wave radar. Different materials used in cookware correspond to different radar reflection characteristics. For example, metal cookware, due to its excellent conductivity, exhibits strong specular reflection of electromagnetic waves, resulting in a high amplitude radar reflection signal. Conversely, non-metallic cookware such as ceramic and glass cookware allows most electromagnetic waves to penetrate, with only a small portion reflected at the surface, resulting in a lower amplitude radar reflection signal. This allows for the differentiation of the cookware's material information. Furthermore, the shape of the cookware significantly affects the spatial distribution (angle) of the radar reflection signal. Further, precise shape information can be determined using point cloud data or angular spectrum output. Next, a pre-defined cookware database can be queried to first match the grouping corresponding to the material information. For example, when the material information indicates the cookware is an iron pot, the corresponding groupings can be retrieved first, such as 101 (flat bottom, diameter 28), 102 (round bottom, diameter 30), etc. Then, based on the shape information, the corresponding target cookware can be matched from the groupings to obtain the cookware identifier.

[0043] In this embodiment, the radar device can accurately determine the material and shape information of the target cooking appliance on the stove and accurately match the appliance identification; and the appliance identification and the target cooking mode are used together as the scene information of the cooking scene, so as to facilitate the subsequent setting of personalized target turn-off thresholds for different cooking modes of each cooking appliance.

[0044] Figure 3 This is a schematic diagram of the process for determining the target shutdown threshold provided in an embodiment of this application. Figure 3 As shown, obtaining the target turn-off threshold corresponding to the cooking scenario may include: S301: Obtain the cooking feedback information of the target object on historical dishes; The historical dishes are obtained by cooking the stove according to the initial fire-off threshold in the cooking scenario. In one embodiment, after each cooking session, the target user can submit feedback on the historical dishes via the cooktop's interactive interface, or via a mobile application that comes with the cooktop. This feedback could include phrases such as "The timing of turning off the heat was accurate, resulting in a good cooking outcome," "Turning off the heat too early, the dish still needs cooking," or "Turning off the heat too late, the dish is burnt."

[0045] S303: If the cooking feedback information indicates that the stove needs to be turned off with a delayed flameout, increase the initial flameout threshold by a preset step size. S305: If the cooking feedback information indicates that the stove needs to be turned off in advance, reduce the initial turn-off threshold by a preset reduction step size; In one implementation, when the cooking feedback information indicates that the stove needs to be turned off with a delayed start, the initial turn-off threshold can be increased by a preset increment step size; the preset increment step size can be 5%. In another implementation, when the cooking feedback information indicates that the stove needs to be turned off earlier, the initial turn-off threshold can be decreased by a preset decrement step size; the preset decrement step size can be 5%. It should be noted that the preset increment step size can be equal to or different from the preset decrement step size, and the specific value of the step size can be configured in advance by the target object.

[0046] S307: The increased or decreased initial shutdown threshold is determined as the target shutdown threshold.

[0047] The adjusted initial shut-off threshold is set as the target shut-off threshold, thereby enabling automatic shut-off during the cooking process.

[0048] In this embodiment of the application, after each cooking session, the cooking feedback information of the target object on the cooked dish is obtained. Based on the cooking feedback information, it can be determined whether the timing of turning off the heat is too early or too late, thereby automatically adjusting the turning-off threshold to obtain the target turning-off threshold, so that the timing of turning off the heat can meet the user's personalized needs.

[0049] It should be noted that, in addition to the aforementioned automatic adjustment of the turn-off threshold, this application also provides a custom threshold adjustment scheme. Specifically, based on obtaining the target turn-off threshold corresponding to the cooking scenario, it may further include: The initial shut-off threshold is used as the current shut-off threshold; in response to a delayed shut-off command to the stove, the current shut-off threshold is increased by a preset increment, and the increased shut-off threshold is redefined as the current shut-off threshold; in response to an early shut-off command to the stove, the current shut-off threshold is decreased by a preset decrement, and the decreased shut-off threshold is redefined as the current shut-off threshold; in response to a threshold determination command to the stove, the current shut-off threshold is defined as the target shut-off threshold.

[0050] In this embodiment, a delayed shut-off button and an early shut-off button can be set on the stove's interactive interface. These buttons can be virtual or physical. If the delayed shut-off button is pressed, a delayed shut-off command is triggered; if the early shut-off button is pressed, an early shut-off command is triggered.

[0051] In one embodiment, the button can support both long press and short press modes. Taking a delayed shut-off button as an example, the step of increasing the current shut-off threshold by a preset increment in response to a delayed shut-off command on the stove may include: The system obtains the touch duration of the target object's touch operation on the first button. If the touch duration is less than a duration threshold, the current shutdown threshold is increased by a first preset increment step. If the touch duration is greater than or equal to the duration threshold, the current shutdown threshold is increased by a second preset increment step. The first preset increment step is less than the second preset increment step. The first button is the delayed shutdown button. The system determines whether the touch operation is a long press or a short press by detecting the touch duration of the target object's touch operation on the first button. If the touch duration is less than the duration threshold, it is a short press, and the current shutdown threshold is increased by the first preset increment step. In one example, the first preset increment step can be 1%, meaning that the current shutdown threshold increases by 1% with each press, for example, from 79% to 80%. If the touch duration is greater than or equal to the duration threshold, it is a long press, and the current shutdown threshold is increased by the second preset increment step. In one example, the second preset increment step can be 5%, meaning that the current shutdown threshold increases by 5% with each press, for example, from 75% to 80%. Similarly, the touch duration of the target object's touch operation on the second button (the pre-fire button) can also be obtained. The current fire-off threshold is then reduced based on the relationship between the touch duration and the duration threshold. This process is similar to the adjustment process for the delayed fire-off button and will not be elaborated here. By combining long and short presses to define and adjust the threshold, adjustment efficiency can be improved.

[0052] In one implementation, the buttons can be connected to the general-purpose input / output (GPIO) interface of the stove controller via pull-up resistors, and a debouncing algorithm is used to ensure stable input signals.

[0053] If the first and second buttons are simultaneously touched for a preset duration, a threshold determination command is triggered, the target turn-off threshold set for the target object is saved to Flash, and the cooking is performed according to the target turn-off threshold.

[0054] In this embodiment of the application, by responding to a delayed shutdown command or an early shutdown command, the target object can customize and adjust the shutdown threshold so that the shutdown timing meets the target object's expectations, thereby achieving personalized adjustment.

[0055] Figure 4 This is a schematic diagram of the process for adjusting the temperature rise weight provided in the embodiments of this application. Figure 4 It can be seen as Figure 2 A specific example of step S207 in the method shown. For example... Figure 4 As shown, adjusting the initial temperature rise weight based on the offset between the target shut-off threshold and the base shut-off threshold to obtain the target temperature rise weight may include: S401: Determine the threshold offset of the target shutdown threshold relative to the base shutdown threshold; The threshold offset of the target shutdown threshold relative to the base shutdown threshold is the difference between the target shutdown threshold and the base shutdown threshold.

[0056] S403: Determine the weight offset corresponding to the threshold offset according to the preset offset mapping relationship; the preset offset mapping relationship is the mapping relationship between the preset threshold offset and the preset weight offset; In one example, the preset offset mapping relationship can be a linear relationship, i.e., Δk = λ * ΔC, where Δk represents the weight offset, ΔC represents the threshold offset, and λ represents the target offset ratio. In one example, λ can be set to 0.5.

[0057] It should be noted that the process of constructing the preset offset mapping relationship includes: Multiple sets of test cooking data are acquired; each set of test cooking data includes a test shut-off threshold under the test cooking scenario and a test risk score of the stove cooking according to the test shut-off threshold; for each set of test cooking data, the test threshold offset of the test shut-off threshold relative to the base shut-off threshold is determined, and a test weight offset is determined based on the initial offset ratio and the test threshold offset; a predicted score is determined based on the initial offset ratio, the test weight offset, and the test temperature rise weight; based on the difference between multiple sets of predicted scores and the test scores, the target offset ratio is determined, and the preset offset mapping relationship is constructed based on the target offset ratio.

[0058] The test risk score ranges from 0 to 100%, representing the effectiveness of the stove in cooking according to the test shut-off threshold. It can be evaluated from multiple dimensions, such as the cooking effect of the dish, the safety of the highest temperature that the cooking appliance can reach during cooking, and the safety of the temperature rise rate. The test risk score is obtained by combining the above evaluation dimensions.

[0059] The initial offset ratio is an unknown quantity, which can be denoted as λ. The test weight offset can then be denoted as λ*ΔC. In this application, a weighted linear regression model is established based on the aforementioned multiple sets of test cooking data: score = w0 + w1*λ + w2*ΔC + w3*k_recommended + w4*k_used, where k_used = k_recommended + λ*ΔC. In this model, w0, w1, λ, w2, w3, and w4 are unknown quantities, while score, ΔC, and k_recommended are known quantities. Substituting the multiple sets of test cooking data into the aforementioned weighted linear regression model, λ, i.e., the target offset ratio, can be obtained. Substituting this into the linear relationship yields the preset offset mapping relationship.

[0060] By using multiple sets of cooking test data to calculate the target offset ratio, a preset offset mapping relationship is constructed. This allows for dynamic adjustment of the temperature rise weight according to the preset offset mapping relationship, making the judgment of when to turn off the heat more accurate.

[0061] S405: Based on the weight offset and the basic temperature rise weight, adjust the initial temperature rise weight to obtain the target temperature rise weight, and use the target temperature rise weight as the initial temperature rise weight corresponding to the scene information and store it in the preset temperature rise weight library.

[0062] In one example, the base temperature rise weight is 0.7, and assuming the weight offset is 0.2, the initial temperature rise weight is 0.8. Therefore, simply adding 0.1 to the initial temperature rise weight yields the target temperature rise weight of 0.9. During the cooking process, this value is used to determine the overall risk level, and this target temperature rise weight replaces the original initial temperature rise weight in the preset temperature rise weight library for storage, allowing for dynamic adjustments based on this value in future cooking.

[0063] In this embodiment, a preset offset mapping relationship is used to establish a correlation between the threshold offset and the weight offset, so that while the turn-off threshold is adjusted in a personalized way, the temperature rise weight is also dynamically adjusted to achieve personalized turn-off requirements, which is conducive to improving the turn-off effect of the target turn-off threshold.

[0064] Figure 5 This is a schematic diagram of the process for determining the comprehensive risk value provided in an embodiment of this application. For example... Figure 5 As shown, determining the comprehensive risk value based on the real-time temperature, real-time temperature rise rate, and target temperature rise weight of the target cooking appliance may include: S501: Determine the safe temperature of the target cooking appliance based on the material information; In one embodiment, the utensil identifier obtained in step S201 may also include material information of the target cooking utensil; cooking utensils made of different materials have different safe temperatures. For example, the safe temperature of an iron pot is 400°C, while the safe temperature of a clay pot is 300°C. That is to say, when the temperature of the cooking utensil exceeds the safe temperature during cooking, there is a risk of dry burning.

[0065] S503: The ratio between the real-time temperature and the safe temperature is determined as the first risk value; In one embodiment, the first risk value can be the ratio between the real-time temperature and the safe temperature, i.e., T(t) / T_max. Here, T(t) is the real-time temperature, and T_max is the safe temperature.

[0066] S505: The product between the real-time temperature rise rate and the target temperature rise weight is determined as the second risk value; In one embodiment, the second risk value can be the product of the real-time temperature rise rate and the target temperature rise weight, i.e., k_used*ΔT / Δt, where k_used is the target temperature rise weight and ΔT / Δt is the real-time temperature rise rate.

[0067] S507: Determine the comprehensive risk value based on the first risk value and the second risk value.

[0068] In one embodiment, the first risk value and the second risk value can be weighted and added together to obtain the comprehensive risk value. The formula for calculating the comprehensive risk value is as follows: R(t)=α*T(t) / T_max +β*k_used*ΔT / Δt Where α + β = 1; R(t) represents the real-time comprehensive risk value, T(t) / T_max represents the first risk value, and k_used*ΔT / Δt represents the second risk value; α and β are the risk value weights. In one example, α can be 0.6 and β can be 0.4, making the absolute value of temperature more important when determining when to turn off the heat. In another example, the values ​​of α and β can also correspond to the target cooking mode. For example, in frying mode, the value of β can be increased, making the rate of temperature increase more important when determining when to turn off the heat, avoiding excessively rapid oil temperature rise that could affect the cooking experience.

[0069] In this embodiment, by comprehensively considering the real-time temperature and real-time temperature rise rate of the target cooking appliance during the cooking process, the comprehensive risk value can fully characterize the temperature characteristics of the cooking process, which is beneficial to ensuring the safety of the cooking process. At the same time, by using the target object's personalized adjustment to obtain the target turn-off threshold to determine the target temperature rise weight, the subsequent comparison between the comprehensive risk value and the target turn-off threshold is more accurate, so as to meet the target object's personalized adjustment needs.

[0070] Figure 6 This is a schematic diagram of the device for controlling the automatic shut-off of a stove provided in an embodiment of this application.

[0071] like Figure 6 As shown, the device 600 includes: The scene information acquisition module 601 is used to acquire scene information of the cooking scene in response to the cooking mode selection operation of the target object; the scene information includes the target cooking mode and the utensil identifier of the target cooking utensil. The initial temperature rise weight determination module 602 is used to search for the initial temperature rise weight corresponding to the scenario information from a preset temperature rise weight library; the initial temperature rise weight represents the importance of the real-time temperature rise rate in determining the timing of turning off the heat in the cooking scenario. The target shut-off threshold acquisition module 603 is used to acquire the target shut-off threshold corresponding to the cooking scenario; the target shut-off threshold is determined based on the cooking feedback information of the target object on historical dishes; the historical dishes are those cooked by the stove in the cooking scenario according to the initial shut-off threshold; The temperature rise weight adjustment module 604 is used to adjust the initial temperature rise weight based on the offset between the target shut-off threshold and the basic shut-off threshold to obtain the target temperature rise weight. The comprehensive risk value determination module 605 is used to determine a comprehensive risk value based on the real-time temperature, real-time temperature rise rate and target temperature rise weight of the target cooking appliance during the process of controlling the stove to cook according to the target cooking mode. The flameout control module 606 is used to control the stove to automatically shut off if the comprehensive risk value is greater than or equal to the target flameout threshold.

[0072] In some embodiments, the temperature rise weighting adjustment module may include: The threshold offset determination submodule is used to determine the threshold offset of the target shutdown threshold relative to the base shutdown threshold; The mapping submodule is used to determine the weight offset corresponding to the threshold offset according to a preset offset mapping relationship; the preset offset mapping relationship is the mapping relationship between the preset threshold offset and the preset weight offset. The target temperature rise weight determination submodule is used to adjust the initial temperature rise weight based on the weight offset and the basic temperature rise weight to obtain the target temperature rise weight, and then use the target temperature rise weight as the initial temperature rise weight corresponding to the scene information and store it in the preset temperature rise weight library.

[0073] In some embodiments, the device 600 further includes: The test data acquisition module is used to acquire multiple sets of test cooking data; each set of test cooking data includes the test shut-off threshold under the test cooking scenario and the test risk score of the stove cooking according to the test shut-off threshold; The test weight offset determination module is used to determine the test threshold offset of the test turn-off threshold relative to the base turn-off threshold for each set of test cooking data, and to determine the test weight offset based on the initial offset ratio and the test threshold offset. The prediction score determination module is used to determine the prediction score based on the initial offset ratio, the test weight offset, and the test temperature rise weight. The mapping relationship determination module is used to determine the target offset ratio based on the differences between multiple sets of predicted scores and test scores, and to construct the preset offset mapping relationship based on the target offset ratio.

[0074] In some embodiments, the target shutdown threshold acquisition module may include: The cooking feedback information acquisition submodule is used to acquire the cooking feedback information of the target object on historical dishes; the historical dishes are obtained by the stove cooking according to the initial turn-off threshold in the cooking scenario; The threshold increase control submodule is used to increase the initial shut-off threshold by a preset increase step size if the cooking feedback information indicates that the stove needs to delay shutting off. The threshold reduction control submodule is used to reduce the initial shut-off threshold by a preset reduction step size if the cooking feedback information indicates that the stove needs to be turned off in advance. The target shutdown threshold determination submodule is used to determine the increased or decreased initial shutdown threshold as the target shutdown threshold.

[0075] In some embodiments, the target shutdown threshold acquisition module may further include: The current shutdown threshold determination submodule is used to use the initial shutdown threshold as the current shutdown threshold; The delayed shut-off command response submodule is used to respond to the delayed shut-off command of the stove by increasing the current shut-off threshold by a preset increment step, and redetermining the increased shut-off threshold as the current shut-off threshold. The early shut-off command response submodule is used to respond to the early shut-off command of the stove by reducing the current shut-off threshold by a preset reduction step size, and redetermining the reduced shut-off threshold as the current shut-off threshold. A threshold determination instruction response submodule is used to determine the current shut-off threshold as the target shut-off threshold in response to a threshold determination instruction for the stove.

[0076] In some embodiments, the utensil identifier further includes material information of the target cooking utensil; the comprehensive risk value determination module may include: The safe temperature determination submodule is used to determine the safe temperature of the target cooking appliance based on the material information. The first risk value determination submodule is used to determine the ratio between the real-time temperature and the safe temperature as the first risk value; The second risk value determination submodule is used to determine the second risk value as the product between the real-time temperature rise rate and the target temperature rise weight. The comprehensive risk value determination submodule is used to determine the comprehensive risk value based on the first risk value and the second risk value.

[0077] In some embodiments, the scene information acquisition module may include: The cooking mode acquisition submodule is used to acquire the target cooking mode in response to the cooking mode selection operation of the target object, and control the radar device to send a radar transmission signal to the target cooking appliance; A reflected signal receiving submodule is used to receive radar reflected signals reflected by the target cooking appliance; The appliance information determination submodule is used to determine the material and shape information of the target cooking appliance based on the radar reflection signal; The utensil identification determination submodule is used to match the group corresponding to the material information from the preset cooking utensil library, and match the target cooking utensil corresponding to the shape information in the group to obtain the utensil identification; The scene information determination submodule is used to determine the target cooking mode and the appliance identifier of the target cooking appliance as the scene information of the cooking scene.

[0078] The apparatus and method embodiments described herein are based on the same inventive concept.

[0079] This application provides an electronic device including a processor and a memory. The memory stores at least one instruction or at least one program, which is loaded and executed by the processor to implement the method provided in the above method embodiments.

[0080] Embodiments of this application also provide a computer storage medium, which can be disposed in a terminal to store at least one instruction or at least one program related to implementing a method as provided in the above method embodiments, wherein the at least one instruction or at least one program is loaded and executed by the processor to implement the method provided in the above method embodiments.

[0081] Embodiments of this application also provide a computer program product or computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the method provided in the above-described method embodiments.

[0082] Optionally, in this embodiment, the storage medium may be located at at least one of the multiple network servers in a computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0083] The memory described in this application embodiment can be used to store software programs and modules. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, applications required for the functions, etc.; the data storage area may store data created according to the use of the device, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory may also include a memory controller to provide the processor with access to the memory.

[0084] The methods provided in this application can be executed on mobile terminals, computer terminals, servers, or similar computing devices. Taking running on a server as an example... Figure 7 This is a hardware structure block diagram of a server for a method of controlling an automatic stove shut-off according to an embodiment of this application. Figure 7 As shown, the server 700 can vary significantly due to different configurations or performance. It may include one or more Central Processing Units (CPUs) 710 (CPUs 710 may include, but are not limited to, microprocessors (MCUs) or programmable logic devices (FPGAs), a memory 730 for storing data, and one or more storage media 720 (e.g., one or more mass storage devices) for storing application programs 723 or data 722. The memory 730 and storage media 720 may be temporary or persistent storage. The program stored in the storage media 720 may include one or more modules, each module may include a series of instruction operations on the server. Furthermore, the CPU 710 may be configured to communicate with the storage media 720 and execute the series of instruction operations stored in the storage media 720 on the server 700. Server 700 may also include one or more power supplies 760, one or more wired or wireless network interfaces 750, one or more input / output interfaces 740, and / or one or more operating systems 721, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, etc.

[0085] The input / output interface 740 can be used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of server 700. In one example, the input / output interface 740 includes a network interface controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the input / output interface 740 may be a radio frequency (RF) module used for wireless communication with the Internet.

[0086] Those skilled in the art will understand that Figure 7 The structure shown is for illustrative purposes only and does not limit the structure of the aforementioned electronic device. For example, server 700 may also include... Figure 7 The more or fewer components shown, or having the same Figure 7 The different configurations shown.

[0087] As can be seen from the embodiments of the method, apparatus, electronic device, and storage medium for controlling the automatic shut-off of a stove provided in this application, this application, in response to the cooking mode selection operation of the target object, obtains scene information of the cooking scenario; the scene information includes the target cooking mode and the appliance identifier of the target cooking appliance; then, it searches for the initial temperature rise weight corresponding to the scene information from a preset temperature rise weight library; obtains the target shut-off threshold corresponding to the cooking scenario; adjusts the initial temperature rise weight based on the offset between the target shut-off threshold and the basic shut-off threshold to obtain the target temperature rise weight; during the process of controlling the stove to cook according to the target cooking mode, a comprehensive risk value is determined based on the real-time temperature of the target cooking appliance, the real-time temperature rise rate, and the target temperature rise weight; by comprehensively considering the actual temperature and temperature rise rate, the comprehensive risk value can accurately characterize the temperature characteristics of the cookware during cooking, making the subsequently determined shut-off timing safer. If the comprehensive risk value is greater than or equal to the target shut-off threshold, the stove is controlled to automatically shut off, effectively ensuring cooking safety while allowing the automatic shut-off timing of the stove to adapt to different cooking scenarios and the user's personalized shut-off needs.

[0088] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0089] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the embodiments of apparatus, devices, and storage media are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0090] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer storage medium, such as a read-only memory, a disk, or an optical disk.

[0091] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method of controlling automatic fire-off of a cooking hob, characterized in that, The method comprises: in response to a cooking mode selection operation of a target object, obtaining scene information of a cooking scene; the scene information comprises a target cooking mode and an appliance identifier of a target cooking appliance; finding an initial temperature rise weight corresponding to the scene information from a preset temperature rise weight library; the initial temperature rise weight represents the importance of the real-time temperature rise rate in determining the fire-out time under the cooking scene; obtain a target fire-out threshold corresponding to the cooking scene; the target fire-out threshold is determined based on the cooking feedback information of the target object on the historical dishes; the historical dishes are obtained by the stove under the cooking scene according to the initial fire-out threshold; adjust the initial temperature rise weight based on the offset between the target fire-out threshold and the basic fire-out threshold to obtain a target temperature rise weight; during the control of the stove to cook according to the target cooking mode, determine a comprehensive risk value based on the real-time temperature, the real-time temperature rise rate of the target cooking appliance and the target temperature rise weight; if the comprehensive risk value is greater than or equal to the target fire-out threshold, control the stove to execute automatic fire-out.

2. The method of claim 1, wherein, The method comprises: determine the threshold offset of the target fire-out threshold relative to the basic fire-out threshold; determine the weight offset corresponding to the threshold offset according to the preset offset mapping relationship; the preset offset mapping relationship is the mapping relationship between the preset threshold offset and the preset weight offset; adjust the initial temperature rise weight based on the weight offset and the basic temperature rise weight to obtain the target temperature rise weight, and store the target temperature rise weight as the initial temperature rise weight corresponding to the scene information in the preset temperature rise weight library.

3. The method of claim 2, wherein, The construction process of the preset offset mapping relationship comprises: obtain a plurality of sets of test cooking data; each set of test cooking data comprises a test fire-out threshold under a test cooking scene and a test risk score of the stove cooking according to the test fire-out threshold; for each set of test cooking data, determine the test threshold offset of the test fire-out threshold relative to the basic fire-out threshold, and determine the test weight offset based on the initial offset ratio and the test threshold offset; determine a prediction score based on the initial offset ratio, the test weight offset and the test temperature rise weight; based on the difference between a plurality of the prediction scores and the test scores, determine the target offset ratio, and construct the preset offset mapping relationship based on the target offset ratio.

4. The method of claim 1, wherein, The method comprises: obtain the cooking feedback information of the target object on the historical dishes; the historical dishes are obtained by the stove under the cooking scene according to the initial fire-out threshold; if the cooking feedback information indicates that the stove needs to delay fire-out, increase the initial fire-out threshold by a preset increasing step; if the cooking feedback information indicates that the stove needs to fire-out in advance, decrease the initial fire-out threshold by a preset decreasing step; determine the initial fire-off threshold value as the target fire-off threshold value.

5. The method of claim 1, wherein, The obtaining of the target fire-off threshold value corresponding to the cooking scene further includes: determining the initial fire-off threshold value as a current fire-off threshold value; in response to a delayed fire-off instruction of the stove, increasing the current fire-off threshold value by a preset increasing step, and determining the increased fire-off threshold value as the current fire-off threshold value again; in response to an advanced fire-off instruction of the stove, decreasing the current fire-off threshold value by a preset decreasing step, and determining the decreased fire-off threshold value as the current fire-off threshold value again; in response to a threshold value determination instruction of the stove, determining the current fire-off threshold value as the target fire-off threshold value.

6. The method of claim 1, wherein, The appliance identification further includes material information of the target cooking appliance; and the determination of the comprehensive risk value based on the real-time temperature, the real-time temperature rise rate and the target temperature rise weight of the target cooking appliance includes: determining a safe temperature of the target cooking appliance based on the material information; determining a first risk value as a ratio between the real-time temperature and the safe temperature; determining a second risk value as a product between the real-time temperature rise rate and the target temperature rise weight; and determining the comprehensive risk value based on the first risk value and the second risk value.

7. The method of claim 1, wherein, The obtaining of the scene information of the cooking scene in response to the cooking mode selection operation of the target object includes: in response to the cooking mode selection operation of the target object, obtaining a target cooking mode, and controlling a radar device to emit a radar emission signal to the target cooking appliance; receiving a radar reflection signal reflected by the target cooking appliance; determining material information and shape information of the target cooking appliance according to the radar reflection signal; matching a group corresponding to the material information from a preset cooking appliance library, and matching a target cooking appliance corresponding to the shape information in the group to obtain an appliance identification of the target cooking appliance; determining the target cooking mode and the appliance identification of the target cooking appliance as the scene information of the cooking scene.

8. A device for controlling automatic fire-off of a cooking range, characterized in that, The device includes: a scene information obtaining module, configured to obtain scene information of a cooking scene in response to a cooking mode selection operation of a target object; the scene information includes a target cooking mode and an appliance identification of a target cooking appliance; an initial temperature rise weight determining module, configured to find an initial temperature rise weight corresponding to the scene information from a preset temperature rise weight library; the initial temperature rise weight represents an importance degree of a real-time temperature rise rate to a determination of a fire-off time in the cooking scene; a target fire-off threshold value obtaining module, configured to obtain a target fire-off threshold value corresponding to the cooking scene; the target fire-off threshold value is determined based on cooking feedback information of a historical dish by the target object; the historical dish is obtained by a stove in the cooking scene according to an initial fire-off threshold value; a temperature rise weight adjusting module, configured to adjust the initial temperature rise weight based on an offset between the target fire-off threshold value and a basic fire-off threshold value, to obtain a target temperature rise weight; and a fire-off time determining module, configured to determine a target fire-off time based on the target temperature rise weight. The integrated risk value determination module is configured to determine an integrated risk value based on the real-time temperature, the real-time temperature rising rate and the target temperature rising weight of the target cooking appliance during the control of the cooking process of the cooking appliance according to the target cooking mode. The fire-off control module is configured to control the cooking appliance to execute automatic fire-off if the integrated risk value is greater than or equal to the target fire-off threshold.

9. An electronic device, comprising: The electronic device comprises a processor and a memory, and the memory stores at least one instruction or at least one program, which is loaded and executed by the processor to implement the method for controlling automatic fire-off of the cooking appliance according to any one of claims 1-7.

10. A computer storage medium, characterized in that, The computer storage medium stores at least one instruction or at least one program, which is loaded and executed by the processor to implement the method for controlling automatic fire-off of the cooking appliance according to any one of claims 1-7.

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