Control method and device of electrical equipment, electrical equipment and storage medium

Abstract

The invention discloses a control method and device of electrical equipment, the electrical equipment and a storage medium. The electrical equipment comprises a shell, a temperature measurement module and a controller. The shell is provided with a first surface and a second surface which deviate from each other. The temperature measurement module is arranged on the first surface and comprises a first temperature measurement unit and a second temperature measurement unit, and the two temperature measurement units define a heat transfer channel. The controller is used for acquiring a first temperature corresponding to the first temperature measuring unit and a second temperature corresponding to the second temperature measuring unit; and when the determined temperature of the heated object is greater than the reference temperature, correcting the temperature measurement model based on the first temperature, the second temperature and the reference temperature. The reference temperature represents the maximum temperature value which can be reached by the electrical equipment in the current working mode. And if the determined temperature of the heated object is greater than the reference temperature, the temperature measurement model has deviation. And the controller corrects the temperature measurement model so as to ensure that the corrected temperature measurement model can accurately determine the temperature of the heated object.

Description

Technical Field

[0001] The present application relates to the technical field of electrical appliances, and more specifically, to a control method, device, electrical appliance, and storage medium for an electrical appliance. Background Art

[0002] For existing cooking electrical appliances (such as induction cookers, electric stew pots), in order to prevent the shell from cracking due to high temperature, heat insulation materials with large thermal resistance and strong heat storage capacity, such as microcrystalline glass and ceramics, are usually used. For example, the microcrystalline panel of an induction cooker, the ceramic inner pot of an electric stew pot, etc.

[0003] When detecting the heating temperature of the above electrical appliances, a temperature measurement scheme through an object is usually adopted. Taking an induction cooker as an example, a cookware to be heated is placed on one side of the microcrystalline panel, and a temperature measurement unit (such as a thermistor type temperature measurement unit) is placed on the other side.

[0004] Therefore, when the electrical appliance obtains the temperature measurement data of the temperature measurement unit, it is necessary to use a preset temperature measurement model to calculate the heating temperature on the side of the cookware. However, once the temperature measurement unit ages, the temperature measurement data of the temperature measurement unit will be deviated, which also causes an error in the heating temperature calculated based on the temperature measurement model, affecting the normal operation of the electrical appliance. Summary of the Invention

[0005] Embodiments of the present application provide a control method, device, electrical appliance, and storage medium for an electrical appliance.

[0006] According to a first aspect of the present application, embodiments of the present application provide an electrical appliance, which includes a housing, a temperature measurement module, and a controller. The housing has a first surface and a second surface facing away from each other, and the second surface is suitable for placing an object to be heated. The temperature measurement module is suitable for being arranged on the first surface and is used to determine the temperature of the object to be heated; the temperature measurement module includes a first temperature measurement unit and a second temperature measurement unit, and the first temperature measurement unit is arranged on the first surface; the second temperature measurement unit and the first temperature measurement unit are arranged at intervals and jointly define a heat transfer channel with the first temperature measurement unit. The controller is electrically connected to the first temperature measurement unit and the second temperature measurement unit respectively, and the controller is configured to: when the electrical appliance is in a working state, obtain a first temperature corresponding to the first temperature measurement unit and a second temperature corresponding to the second temperature measurement unit; determine the temperature of the object to be heated based on the first temperature, the second temperature, and a preset temperature measurement model, and the temperature measurement model represents the corresponding relationship between the first temperature, the second temperature, and the temperature of the object to be heated; when the temperature of the object to be heated is greater than a reference temperature, correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature; the reference temperature represents the maximum temperature value that the electrical appliance can reach in the current working mode; determine the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit.

[0007] According to a second aspect of the present application, embodiments of the present application further provide a control method for an electrical appliance, which is applied to the above-mentioned electrical appliance. The method includes: when the electrical appliance is in a working state, obtaining a first temperature corresponding to a first temperature measurement unit and a second temperature corresponding to a second temperature measurement unit; determining the temperature of the object to be heated based on the first temperature, the second temperature, and a preset temperature measurement model; the temperature measurement model represents the corresponding relationship between the first temperature, the second temperature, and the temperature of the object to be heated; when the temperature of the object to be heated is greater than a reference temperature, correcting the temperature measurement model based on the first temperature, the second temperature, and the reference temperature; the reference temperature represents the maximum temperature value that the electrical appliance can reach in the current working mode; determining the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit.

[0008] According to a third aspect of the present application, embodiments of the present application further provide a control device for an electrical appliance, which is applied to the above-mentioned electrical appliance. The device includes an acquisition module, a first determination module, a correction module, and a second determination module. Among them, the acquisition module is used to obtain a first temperature corresponding to a first temperature measurement unit and a second temperature corresponding to a second temperature measurement unit when the electrical appliance is in a working state. The first determination module is used to determine the temperature of the object to be heated based on the first temperature, the second temperature, and a preset temperature measurement model; the temperature measurement model represents the corresponding relationship between the first temperature, the second temperature, and the temperature of the object to be heated. The correction module is used to correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature when the temperature of the object to be heated is greater than the reference temperature; the reference temperature represents the maximum temperature value that the electrical appliance can reach in the current working mode. The second determination module is used to determine the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit.

[0009] According to a fourth aspect of the present application, embodiments of the present application further provide an electrical appliance, which includes one or more processors, a memory, and one or more application programs. Among them, one or more application programs are stored in the memory and are configured to be executed by one or more processors, and are configured to execute the above-mentioned method.

[0010] According to a fifth aspect of the present application, embodiments of the present application further provide a computer-readable storage medium, in which computer program instructions are stored, and the computer program instructions can be called by a processor to execute the above-mentioned method.

[0011] According to a sixth aspect of the present application, embodiments of the present application further provide a computer program product, which, when executed, implements the above-mentioned method.

[0012] The present application provides a control method, a device, an electrical appliance, and a storage medium for an electrical appliance. Among them, the electrical appliance includes a housing, a temperature measurement module, and a controller. The housing has a first surface and a second surface facing away from each other, and the second surface is adapted to place the object to be heated. The temperature measurement module is adapted to be disposed on the first surface and is used to determine the temperature of the object to be heated. Therefore, the temperature measurement module in the present application adopts a cross-medium (i.e., object-separated) temperature measurement scheme.

[0013] Among them, the temperature measurement module includes a first temperature measurement unit and a second temperature measurement unit. The first temperature measurement unit is disposed on the first surface; the second temperature measurement unit is spaced apart from the first temperature measurement unit and jointly defines a heat transfer channel with the first temperature measurement unit. The "heat transfer channel" here can be used to transfer the heat at the first surface to the second temperature measurement unit so that there is a temperature difference between the two temperature measurement units corresponding to the heat transfer channel.

[0014] The controller is electrically connected to the first temperature measurement unit and the second temperature measurement unit respectively, and the controller is configured to: when the electrical appliance is in a working state, obtain a first temperature corresponding to the first temperature measurement unit and a second temperature corresponding to the second temperature measurement unit. Then, based on the first temperature, the second temperature, and a preset temperature measurement model, determine the temperature of the object to be heated. The temperature measurement model characterizes the corresponding relationship between the first temperature, the second temperature, and the temperature of the object to be heated. Then, when the temperature of the object to be heated is greater than the reference temperature, correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature. Finally, based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit, determine the temperature of the object to be heated.

[0015] In the present application, the reference temperature characterizes the maximum temperature value that the electrical appliance can reach in the current working mode. For example, in the current working mode of the boiling water mode, the reference temperature is the boiling point temperature of water. If the temperature of the object to be heated determined by the temperature measurement model is greater than the reference temperature, it means that there is a deviation in the output result of the temperature measurement model. In this case, the controller can correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature, which can overcome the influence of the detection error caused by the aging of the temperature measurement unit on the output result of the temperature measurement model, so as to ensure that the corrected temperature measurement model can accurately determine the temperature of the object to be heated and ensure the normal operation of the electrical appliance. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of an electrical device provided by an embodiment of the present application.

[0018] Figure 2 is Figure 1 A schematic structural diagram of a temperature measurement module in the electrical device shown.

[0019] Figure 3 is Figure 1 Another schematic structural diagram of the temperature measurement module in the electrical device shown.

[0020] Figure 4 It is a schematic flowchart of a control method for an electrical device provided by the first embodiment of the present application.

[0021] Figure 5 It is a schematic flowchart of a control method for an electrical device provided by the second embodiment of the present application.

[0022] Figure 6 It is a schematic flowchart of a control method for an electrical device provided by the third embodiment of the present application.

[0023] Figure 7 It is a block diagram of a control device for an electrical device provided by an embodiment of the present application.

[0024] Figure 8 It is a block diagram of an electrical device provided by an embodiment of the present application.

[0025] Figure 9 It is a block diagram of a computer-readable storage medium provided by an embodiment of the present application. Detailed implementation manners

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0027] The embodiment of the present application provides an electrical device 200. In this embodiment, the electrical device 200 refers to a household appliance or an industrial device with a temperature measurement requirement. For example, the electrical device 200 can be an induction cooker, a rice cooker, a slow cooker, a cooking machine, a blender, a water dispenser, an industrial boiler, and so on.

[0028] Please refer to Figure 1 and Figure 2The electrical device 200 may include a housing 210, a temperature measurement module 100, and a controller 220. The housing 210 has a first surface 2120 and a second surface 2140 that are separated from each other. The temperature measurement module 100 is suitable for being arranged on the first surface 2120 and used to detect the temperature of the heated object arranged on the second surface 2140. For example, the temperature measurement module 100 may be fixedly connected to the first surface 2120, or the temperature measurement module 100 may be against the first surface 2120.

[0029] The second surface 2140 is suitable for placing a heated object. Figure 1 In the illustrated embodiment, the electrical device 200 is an induction cooker, the housing 210 may be a microcrystalline panel of the induction cooker, and the surface of the microcrystalline panel (i.e., the second surface 2140) is suitable for placing the pot to be heated. For another example, when the electrical device 200 is an electric stew pot, the housing 210 may be a ceramic liner of the electric stew pot, and the inner surface of the ceramic liner (i.e., the second surface 2140) is suitable for placing the food to be heated.

[0030] Therefore, the temperature measurement module 100 in this embodiment detects the temperature of the heated object through the shell 210. That is to say, the temperature measurement module 100 adopts a temperature measurement scheme across the medium (that is, the medium), and the temperature measurement module 100 does not need to perform contact temperature measurement after drilling holes on the shell 210. Compared with the temperature measurement scheme of drilling holes on the shell 210, the processing cost of the shell 210 can be reduced and it is easier to assemble.

[0031] In some possible embodiments, the electrical device 200 may include a heating element 230, which is used to heat an object placed on the second surface 2140. The heating element 230 is disposed on the side of the housing 210 facing the first surface 2120, and is spaced apart from the housing 210 to form a space for placing the temperature measurement module 100 together with the housing 210. Figure 1 In the embodiment shown, the heating element 230 may be a coil disk. When the induction cooker is working, the coil disk can generate a high-frequency alternating magnetic field to generate eddy currents in the pot placed above the induction cooker, thereby heating the food in the pot. In some other possible embodiments, the heating element 230 may be a heating tube, a light wave tube, a heating plate, etc., which is not specifically limited in this embodiment.

[0032] In this embodiment, the temperature measurement module 100 may include a first temperature measurement unit 320 and a second temperature measurement unit 340. Among them, the first temperature measurement unit 320 is disposed on the first surface 2120. For example, the first temperature measurement unit 320 may be attached to the first surface 2120 so that the first temperature measurement unit 320 can directly measure the temperature at the first surface 2120. The second temperature measurement unit 340 and the first temperature measurement unit 320 are spaced apart and jointly define a heat transfer channel 410 with the first temperature measurement unit 320. The "heat transfer channel 410" here can be used to transfer the heat at the first surface 2120 to the second temperature measurement unit 340, so that there is a temperature difference between the two temperature measurement units corresponding to the heat transfer channel 410.

[0033] In some possible embodiments, the heat transfer channel 410 is provided with a heat transfer medium 4100, and the first temperature measurement unit 320 and the second temperature measurement unit 340 are respectively located on opposite sides of the heat transfer medium 4100, so that the heat at the first temperature measurement unit 320 can be transferred to the second temperature measurement unit 340 through the heat transfer medium 4100. Specifically, the heat transfer medium 4100 may include a heat-conducting material (for example, a metal material, a carbon material) or air.

[0034] It should be noted here that when the heat transfer medium 4100 is air, the heat transfer channel 410 is an air heat transfer channel, and the heat at the first temperature measurement unit 320 will be almost entirely transferred to the second temperature measurement unit 340 through this air heat transfer channel. Specifically, the air heat transfer channel can be defined by a heat-insulating material to reduce the loss of heat during the transfer process.

[0035] When the heat transfer medium 4100 is a heat-conducting material, the heat transfer channel 410 is a solid heat transfer channel (for example, a metal heat transfer channel), and the heat at the first temperature measurement unit 320 will be almost entirely transferred to the second temperature measurement unit 340 through this metal heat transfer channel. Specifically, after the first temperature measurement unit 320 and the second temperature measurement unit 340 are respectively connected to opposite sides of the heat-conducting material, the first temperature measurement unit 320 is disposed on the first surface 2120. Specifically, the first temperature measurement unit 320, the heat transfer medium 4100, the second temperature measurement unit 340 and the housing 210 can be connected by a heat-conducting adhesive to reduce the loss of heat during the transfer.

[0036] In some possible embodiments, as Figure 2 shown, the angle between the straight line where the temperature measurement point of the second temperature measurement unit 340 and the temperature measurement point of the first temperature measurement unit 320 is located and the first surface 2120 is greater than or equal to 75 degrees and less than or equal to 90 degrees. That is, the extension direction of the heat transfer channel 410 is substantially perpendicular to the first surface 2120. In some possible embodiments, as Figure 3As shown, the angle between the straight line where the temperature measurement point of the second temperature measurement unit 340 and the temperature measurement point of the first temperature measurement unit 320 is located and the first surface 2120 is greater than or equal to 0 degrees and less than or equal to 15 degrees. That is, the extending direction of the heat transfer channel 410 is substantially parallel to the first surface 2120. Specifically, the first temperature measurement unit 320 may include a first temperature measurement probe, and the temperature measurement point of the first temperature measurement unit 320 may be the position where the first temperature measurement probe is located. The second temperature measurement unit 340 may include a second temperature measurement probe, and the temperature measurement point of the second temperature measurement unit 340 is the position where the second temperature measurement probe is located. Specifically, the R & D personnel can adjust the setting positions of the temperature measurement points of the first temperature measurement unit 320 and the second temperature measurement unit 340 based on the actual installation space inside the electrical device 200, and this embodiment does not make specific limitations on this.

[0037] Specifically, the first temperature measurement unit 320 and the second temperature measurement unit 340 may be a thermal resistance temperature sensor, a thermocouple temperature sensor, an infrared thermal radiation probe, an ultrasonic temperature probe, etc. This embodiment does not limit the implementation manner of the temperature measurement unit.

[0038] In some possible embodiments, please refer to again Figure 2 , the temperature measurement module 100 may further include a heat insulation member 10, and the heat insulation member 10 is in contact with the first surface 2120. For example, the heat insulation member 10 may be fixedly connected to the first surface 2120, or the heat insulation member 10 may also abut against the first surface 2120. The heat insulation member 10 is provided with a temperature measurement cavity 120, and the temperature measurement cavity 120 penetrates through one end of the heat insulation member 10 to form an opening 1201 facing the first surface 2120, and the heat of the housing 210 can be transmitted into the temperature measurement cavity 120 through the opening 1201.

[0039] In this embodiment, the heat insulation member 10 is generally in a block shape, which is used to isolate the outside from the temperature measurement cavity 120 to avoid temperature measurement interference of the outside environmental temperature on the temperature measurement unit in the temperature measurement cavity 120, and can improve the temperature measurement accuracy of the temperature measurement module 100. Among them, the heat insulation member 10 has opposite first end 101 and second end 103, the temperature measurement cavity 120 penetrates through the first end 101 of the heat insulation member 10 to form an opening 1201, and the temperature measurement cavity 120 penetrates through the second end 103 of the heat insulation member 10 to form a heat dissipation port 1203, so that the heat in the temperature measurement cavity 120 flows to the outside through the heat dissipation port 1203.

[0040] Therefore, when the electrical device 200 is in a working state, the heat at the second surface 2140 is sequentially transmitted into the temperature measurement cavity 120 through the housing 210 and the opening 1201, and after passing through the heat transfer channel 410, it flows to the outside through the heat dissipation port 1203. Therefore, the existence of the heat dissipation port 1203 can ensure that the heat in the temperature measurement cavity 120 is discharged to the outside in time to avoid the accumulation of heat in the temperature measurement cavity and further cause temperature measurement interference to the temperature measurement unit in the temperature measurement cavity 120.

[0041] In some possible embodiments, the electrical device 200 includes a heating element 230. A heat insulation member 10 is disposed between the heating element 230 and the housing 210. For example, the heat insulation member 10 can be fixed on the heating element 230 and closely attached to the first surface 2120 of the housing 210. In this case, the heat insulation member 10 can also be used to isolate the heat generated by the heating element 230 from entering the temperature measurement cavity 120.

[0042] Specifically, the heat insulation member 10 can be made of heat insulation materials (such as ceramics, fiberglass, etc.). As an implementation manner, an air heat insulation layer can also be provided in the heat insulation member 10 to further improve the heat insulation effect. As another implementation manner, a heat insulation coating, such as composite magnesium aluminum silicate heat insulation coating, rare earth heat insulation coating, etc., can be applied to the side of the heat insulation member 10 facing the temperature measurement cavity 120 to further improve the heat insulation effect.

[0043] In Figure 2 the illustrated embodiment, the first temperature measurement unit 320 is disposed at the opening 1201, and the second temperature measurement unit 340 is disposed in the temperature measurement cavity 120. In Figure 3 the illustrated embodiment, both the first temperature measurement unit 320 and the second temperature measurement unit 340 are disposed at the opening 1201.

[0044] In this embodiment, the controller 220 is electrically connected to the first temperature measurement unit 320 and the second temperature measurement unit 340 respectively, and the controller 220 is configured to: when the electrical device is in a working state, obtain the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit; determine the temperature of the object to be heated based on the first temperature, the second temperature, and a preset temperature measurement model, where the temperature measurement model represents the corresponding relationship between the first temperature, the second temperature, and the temperature of the object to be heated; when the temperature of the object to be heated is greater than the reference temperature, correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature; the reference temperature represents the maximum temperature value that the electrical device can reach in the current working mode; determine the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit. Specifically, the controller 220 can be a control chip or a microcontroller unit (MCU). The specific working process of the controller 220 will be described in detail in the method embodiments below.

[0045] Please refer to Figure 4 , Figure 4 which schematically shows a control method for an electrical device provided in the first embodiment of the present application. This method is applied to the electrical device 200 described above. Specifically, this method includes the following processes.

[0046] Step S410: When the electrical device is in the working state, obtain the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit.

[0047] In this embodiment, the electrical device may be provided with a control panel, which is electrically connected to the controller. When the controller receives a working instruction (such as a heating instruction) sent by the control panel, it controls the electrical device to enter the working state. Then, when the electrical device is in the working state, obtain the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit. Specifically, the first temperature corresponding to the first temperature measurement unit may be the measured temperature value directly output by the first temperature measurement unit to the controller, or the temperature value determined by the controller based on the measurement result output by the first temperature measurement unit. For example, the controller may correct the measurement result output by the first temperature measurement unit and determine the corrected temperature value as the first temperature. Similarly, the second temperature corresponding to the second temperature measurement unit may be the measured temperature value directly output by the second temperature measurement unit to the controller, or the temperature value determined by the controller based on the measurement result output by the second temperature measurement unit. For example, the controller may correct the measurement result output by the second temperature measurement unit and determine the corrected temperature value as the second temperature.

[0048] In some possible embodiments, the controller may obtain the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit every preset time period. The preset time period may be the default value in the controller or may be adjusted by the R & D personnel based on the temperature control accuracy of the electrical device. For example, the higher the temperature control accuracy of the electrical device, the smaller the preset time period. For example, the preset time period may be 30s, 60s, etc.

[0049] In other possible embodiments, the controller may obtain the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit in response to a temperature measurement instruction. For example, the control panel on the electrical device may be provided with a temperature measurement control. When the temperature measurement control is triggered, the temperature measurement control generates a corresponding temperature measurement instruction and sends it to the controller. Here, the "triggering" of the temperature measurement control should be understood as being manually triggered by the user, indicating that the user expects to obtain the current temperature of the electrical device through the temperature measurement control. For example, taking the electrical device as an induction cooker, during the working process of the induction cooker, if the user wants to determine the heating temperature of the food, the user can send a temperature measurement instruction to the controller by operating the above temperature measurement control.

[0050] Step S420: Based on the first temperature, the second temperature, and a preset temperature measurement model, determine the temperature of the object to be heated.

[0051] In this embodiment, the temperature measurement model characterizes the corresponding relationship between the first temperature, the second temperature, and the temperature of the object to be heated. Among them, the first temperature and the second temperature are the input quantities of the temperature measurement model, and the temperature of the object to be heated is the output quantity of the temperature measurement model.

[0052] Specifically, the preset temperature measurement model can be stored in the memory of the controller. When the controller obtains the first temperature and the second temperature, by reading this temperature measurement model, the temperature of the object to be heated can be determined.

[0053] As an implementation manner, the temperature measurement model can be a heat transfer model that reflects the heat transfer situation between the first temperature measurement unit and the second temperature measurement unit, that is, the temperature measurement model is a physical model. R & D personnel can derive this temperature measurement model based on parameters such as the heat capacity value of the housing, the equivalent thermal resistance of the heat transfer channel, and the equivalent thermal resistance of the object to be measured. Specifically, the derivation process of the heat transfer model will be elaborated in the following embodiments.

[0054] As another implementation manner, the temperature measurement model can be a neural network model based on deep learning. R & D personnel can collect a large amount of test data to train this neural network model, and store the trained neural network model as the temperature measurement model in the controller. Specifically, the neural network model can be a fully connected neural network. Among them, the first temperature and the second temperature are the input parameters of the neural network, and the temperature of the object to be heated is the output parameter of the neural network. This embodiment does not limit the specific model parameters and specific training process of the neural network model.

[0055] Step S430, when the temperature of the object to be heated is greater than the reference temperature, correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature.

[0056] In this embodiment, the reference temperature characterizes the maximum temperature value that the electrical equipment can reach in the current working mode. For example, when the current working mode is the boiling water mode, the reference temperature is the boiling point temperature of water. Specifically, the reference temperature corresponding to the boiling water mode can be 100 degrees.

[0057] As an implementation manner, a preset reference temperature mapping table can be stored in the controller. This reference temperature mapping table characterizes the corresponding relationship between different working modes and different reference temperatures. R & D personnel can summarize and induce the above reference temperature mapping table based on a large amount of test data. The controller can determine the current working mode of the electrical equipment by reading the working mode flag bit, and then determine the reference temperature by querying the above reference temperature mapping table.

[0058] In this embodiment, when the controller determines that the temperature of the object to be heated is greater than the reference temperature, it indicates that there is a deviation in the output result of the temperature measurement model at this time. This deviation may be caused by the detection error resulting from the aging of the temperature measurement unit. For example, when the electrical device is in the boiling water mode, the first temperature and the second temperature can be obtained by the controller when the water in the electrical device is in the boiling state. Therefore, theoretically, the temperature determined based on the temperature measurement model should be equal to 100 degrees. If it exceeds 100 degrees, it indicates that there is a deviation in the output result of the temperature measurement model. Therefore, in this embodiment, the temperature measurement model is corrected by the first temperature, the second temperature, and the reference temperature, which can overcome the influence of the detection error of the temperature measurement unit on the output result of the temperature measurement model.

[0059] As an implementation manner, the temperature measurement model can be a neural network model based on deep learning. In this case, the controller can use the first temperature, the second temperature, and the reference temperature as a set of training data, and use a preset optimization algorithm (for example, the gradient descent algorithm) to correct the weight parameters in the neural network model to determine the corrected temperature measurement model.

[0060] As another implementation manner, the temperature measurement model can be a heat transfer model that reflects the heat transfer situation between the first temperature measurement unit and the second temperature measurement unit. The controller can correct the model parameters in the heat transfer model based on the first temperature, the second temperature, and the reference temperature to determine the corrected temperature measurement model. Specifically, the process of correcting the model parameters in the heat transfer model will be described in the following embodiments.

[0061] Step S440: Determine the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit.

[0062] In this embodiment, the controller can input the temperature corresponding to the first temperature measurement unit and the temperature corresponding to the second temperature measurement unit in the subsequent process into the corrected temperature measurement model to determine the temperature of the object to be heated. Since the temperature measurement model has been corrected, the determined temperature of the object to be heated can more accurately reflect the actual temperature of the object to be heated, ensuring the normal operation of the electrical device.

[0063] This embodiment provides a control method for an electrical device, which is applied to the electrical device described above. When the temperature of the object to be heated determined by the temperature measurement model in the method is greater than the reference temperature, the controller will correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature, which can overcome the influence of the detection error caused by the aging of the temperature measurement unit on the output result of the temperature measurement model, so as to ensure that the corrected temperature measurement model can accurately determine the temperature of the object to be heated and ensure the normal operation of the electrical device.

[0064] Please refer to Figure 5 , Figure 5 which schematically shows a control method for an electrical device provided in the second embodiment of the present application. This method is applied to the electrical device 200 described above. The temperature measurement model in this method can be a heat transfer model that reflects the heat transfer between the first temperature measurement unit and the second temperature measurement unit. The heat transfer model includes a preset heat transfer coefficient, which is determined based on the equivalent thermal resistance of the object to be measured and the equivalent thermal resistance of the heat transfer channel. Among them, the object to be measured includes a housing and an object to be heated. Specifically, this method includes the following processes.

[0065] Step S510, when the electrical device is in the working state, obtain the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit.

[0066] In this embodiment, the first temperature and the second temperature are the temperature values obtained by the controller when the temperature measurement unit is in a stable state, which can avoid the situation that the first temperature measurement unit or the second temperature measurement unit is affected by noise interference and causes inaccurate temperature measurement, so as to ensure the accuracy of the temperature of the object to be heated determined subsequently.

[0067] Specifically, step S510 may include steps S5110 to S5130.

[0068] Step S5110, when the electrical device is in the working state, at the first moment, obtain the first sampled temperature corresponding to the first temperature measurement unit and the second sampled temperature corresponding to the second temperature measurement unit.

[0069] In this embodiment, when the electrical device is in the working state, the controller obtains the first sampled temperature corresponding to the first temperature measurement unit and the second sampled temperature corresponding to the second temperature measurement unit at the first moment. Among them, the first moment may be the moment when the temperature measurement instruction is received, or any moment when the electrical device is in the working state.

[0070] Step S5120, at the second moment, obtain the third sampled temperature corresponding to the first temperature measurement unit and the fourth sampled temperature corresponding to the second temperature measurement unit.

[0071] In this embodiment, the time duration between the second moment and the first moment is greater than or equal to a specified duration. Among them, the specified duration may be the default value in the controller, or can be adjusted by the R & D personnel based on the actual working conditions of the electrical device. For example, the specified duration may be greater than or equal to 20 s. For example, the specified duration is 20 s, 40 s, 60 s, etc.

[0072] Step S5130: When the absolute value of the temperature difference between the third sampling temperature and the first sampling temperature is less than or equal to the first difference, and the absolute value of the temperature difference between the fourth sampling temperature and the second sampling temperature is less than or equal to the second difference, determine the third sampling temperature as the first temperature and the fourth sampling temperature as the second temperature.

[0073] In this embodiment, the first difference can be the default value in the controller or can be adjusted by the R & D personnel based on the actual working conditions of the electrical equipment. For example, the first difference can be less than or equal to 2 degrees. For example, the first difference is 0.5 degrees, 1 degree, 2 degrees, and so on.

[0074] When the absolute value of the temperature difference between the third sampling temperature and the first sampling temperature is less than or equal to the first difference, it indicates that the temperature value corresponding to the first temperature measurement unit is very stable, the heat at the heated object does not increase anymore, and the temperature of the heated object reaches the highest temperature that can be achieved in the current working mode. For example, in the boiling water mode, the water is in a boiling state.

[0075] In this embodiment, the second difference and the first difference can be the same or different. Among them, the second difference can be the default value in the controller or can be adjusted by the R & D personnel based on the actual working conditions of the electrical equipment. For example, the second difference can be less than or equal to 2 degrees. For example, the second difference is 0.5 degrees, 1 degree, 2 degrees, and so on.

[0076] When the absolute value of the temperature difference between the fourth sampling temperature and the second sampling temperature is less than or equal to the second difference, it indicates that the temperature value corresponding to the second temperature measurement unit is very stable, the heat at the heated object does not increase anymore, and the temperature of the heated object reaches the highest temperature that can be achieved in the current working mode.

[0077] When the controller determines that the temperature values corresponding to both the first temperature measurement unit and the second temperature measurement unit are stable, it determines the third sampling temperature as the first temperature and the fourth sampling temperature as the second temperature.

[0078] Step S520: Based on the first temperature, the second temperature, and a preset temperature measurement model, determine the temperature of the heated object.

[0079] The temperature measurement model in this embodiment is a heat transfer model that reflects the heat transfer situation between the first temperature measurement unit and the second temperature measurement unit. Here, the derivation process of the heat transfer equation corresponding to the heat transfer model is introduced.

[0080] Taking Figure 2 the shown temperature measurement module as an example, analyze the first temperature measurement unit in Figure 2 as a heat flow node. At a certain moment, this heat flow node satisfies the following formula.

[0081] Q in =Q out +Q save .

[0082] Among them, Q in Q is the heat flowing into the heat flow node from the second surface through the shell, save is the heat stored in the shell, Q out It is the heat that flows out from the heat flow node to the second temperature measurement unit through the heat transfer channel.

[0083] Specifically, Q in Satisfy Q in =(T0-T1) / R1. Where T0 is the temperature of the heated object, T1 is the first temperature, and R1 is the equivalent thermal resistance of the measured object. The "equivalent thermal resistance of the measured object" here can be regarded as the equivalent thermal resistance of the shell and the heated object. In the case where the electrical device is an induction cooker, the heated object is the pot and the food in the pot. In this case, the equivalent thermal resistance of the measured object can be regarded as the equivalent thermal resistance of the shell, the pot, and the food in the pot.

[0084] Q save satisfy Where C is the heat capacity of the shell, is the difference value of the first temperature.

[0085] Q out Satisfy Q out =(T1-T2) / R2. Wherein, T1 is the first temperature, T2 is the second temperature, and R2 is the equivalent thermal resistance of the heat transfer channel.

[0086] Combining the above four formulas, we can get the following heat transfer equation.

[0087]

[0088] Since the first temperature in this embodiment is determined when the temperature corresponding to the first temperature measuring unit is in a stable state, the differential value of the first temperature is 0, and the above heat transfer equation can be equivalent to the following equivalent heat transfer equation.

[0089] T0=T1+K*(T1―T2).

[0090] Where K is the heat transfer coefficient, K = R1 / R2. When the temperature measurement module is fixed, the R&D personnel can calibrate the electrical equipment and then determine the preset heat transfer coefficient K corresponding to the electrical equipment. y For example, R&D personnel can determine R1 and R2 through test experiments, and determine the ratio of R1 to R2 as the preset heat transfer coefficient K. yOf course, the R & D personnel can also fit the preset heat transfer coefficient K based on multiple sets of temperature data y , where each set of temperature data includes the measured T1, T2, and T0.

[0091] It should be noted here that in the Figure 3 temperature measurement module shown, since there is also a heat transfer channel between the first temperature measurement unit and the second temperature measurement unit, the Figure 3 temperature measurement module shown is also applicable to the above equivalent heat transfer equation. In this case, the R & D personnel can fit the preset heat transfer coefficient K based on multiple sets of temperature data y .

[0092] Therefore, the preset temperature measurement model in this embodiment is: T0 = T1 + K y *(T1 - T2). This preset temperature measurement model can be pre-stored in the memory of the controller. When the controller determines T1 and T2, substituting T1 and T2 into the above temperature measurement model can determine the temperature of the object to be heated.

[0093] Step S530, when the temperature of the object to be heated is greater than the reference temperature, correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature.

[0094] In this embodiment, the controller corrects the preset heat transfer coefficient K in the above temperature measurement model y . Specifically, step S530 may include steps S5310 to S5320.

[0095] Step S5310, when the temperature of the object to be heated is greater than the reference temperature, determine the reference heat transfer coefficient based on the first temperature, the second temperature, and the reference temperature.

[0096] In this embodiment, when the temperature of the object to be heated is greater than the reference temperature, the controller substitutes the first temperature, the second temperature, and the reference temperature into the above equivalent heat transfer equation, where the reference temperature is substituted into T0 in the above equivalent heat transfer equation, and then the reference heat transfer coefficient can be determined. Specifically, the reference heat transfer coefficient can be calculated by the following formula.

[0097]

[0098] where T C is the reference temperature, T1 is the first temperature, T2 is the second temperature, and K t is the reference heat transfer coefficient.

[0099] Step S5320, correct the preset heat transfer coefficient based on the reference heat transfer coefficient.

[0100] In some possible embodiments, the controller may directly correct the preset heat transfer coefficient to a reference heat transfer coefficient. That is, replace K in T0 = T1 + K y *(T1―T2) with K y replaced by K t .

[0101] In some possible embodiments, the controller may determine a corrected heat transfer coefficient based on the preset heat transfer coefficient and the reference heat transfer coefficient, and then correct the preset heat transfer coefficient to the corrected heat transfer coefficient. Specifically, step S5320 may include steps S5321 to S5323.

[0102] Step S5321, determine a first coefficient and a second coefficient.

[0103] In this embodiment, the sum of the first coefficient and the second coefficient is 1, the first coefficient is greater than or equal to 0 and less than 1.

[0104] As an implementation manner, the first coefficient and the second coefficient may be default values in the controller. For example, the first coefficient is 0.5 and the second coefficient is 0.5.

[0105] As another implementation manner, the controller determines the first coefficient based on the system stability of the electrical device and a preset coefficient mapping relationship. Among them, the preset coefficient mapping relationship indicates that the first coefficient is negatively correlated with the system stability. That is, the higher the system stability, the smaller the first coefficient. Specifically, the coefficient mapping relationship may be a mapping table or a mapping function, and R & D personnel may determine the coefficient mapping relationship based on a large amount of test data.

[0106] Specifically, the first coefficient may be denoted as (N - 1) / N, where N is a positive integer. When the system stability of the electrical device is higher, the value of N is smaller and the first coefficient is smaller. As an implementation manner, the system stability may be determined by a stability evaluation parameter pre-stored in the controller, and the stability evaluation parameter may be pre-measured and stored in the controller by R & D personnel. For example, the stability evaluation parameter may be a parameter reflecting the anti-electromagnetic interference ability of the electrical device or a parameter reflecting the output power stability. The specific determination process of the stability evaluation parameter in this embodiment is not limited.

[0107] As an implementation, under different working modes of the electrical device, there can be corresponding different stability evaluation parameters. The stability evaluation parameter is related to the complexity of the working conditions corresponding to the working mode. Taking an induction cooker as an example of the electrical device, the induction cooker can include a water boiling mode and a food heating mode. In the water boiling mode, the induction cooker only needs to heat the water, and the complexity of the working conditions is low, so the stability evaluation parameter is high; in the food cooking mode, the induction cooker needs to heat different foods, and the heating time required for different foods is different from each other, the complexity of the working conditions is high, and the stability evaluation parameter is low.

[0108] Specifically, a stability evaluation parameter mapping table can be pre-stored in the controller. The stability evaluation parameter mapping table represents the corresponding relationship between different working modes and different stability evaluation parameters. Among them, the stability evaluation parameter mapping table can be determined by R & D personnel based on a large amount of test data of the electrical device. The controller can determine the current working mode of the electrical device by reading the working mode flag bit, and then determine the stability evaluation parameter corresponding to the current working mode based on the above stability evaluation parameter mapping table.

[0109] Step S5323, determine the sum of the first product and the second product as the corrected heat transfer coefficient of the temperature measurement model.

[0110] In this embodiment, the first product is the product of the first coefficient and the preset heat transfer coefficient, and the second product is the product of the second coefficient and the reference heat transfer coefficient. Specifically, the corrected heat transfer coefficient can be calculated by the following formula.

[0111]

[0112] Among them, K a is the corrected heat transfer coefficient, is the first product, K y is the preset heat transfer coefficient, is the first coefficient; is the second product, K t is the reference heat transfer coefficient, is the second coefficient.

[0113] It is not difficult to find here that in the case of higher system stability of the electrical device, the first coefficient corresponding to the preset heat transfer coefficient is smaller, and the proportion of the preset heat transfer coefficient in the determined corrected heat transfer coefficient is smaller. On the contrary, in the case of lower system stability of the electrical device, the first coefficient corresponding to the preset heat transfer coefficient is larger, and the proportion of the preset heat transfer coefficient in the determined corrected heat transfer coefficient is larger.

[0114] Therefore, when the system stability of the electrical device is lower, compared with the original preset heat transfer coefficient, the determined corrected heat transfer coefficient will only be adjusted slightly on the basis of the preset heat transfer coefficient, so as to avoid the situation that the correction amplitude of the preset heat transfer coefficient is too large when the system stability is lower. For example, when the system stability is relatively low, there may be a large deviation between the first temperature and the second temperature. In this case, the controller will only update the value of the preset heat transfer coefficient slightly to ensure that the corrected temperature measurement module will not have a large temperature measurement deviation.

[0115] In the subsequent process, if the temperature of the object to be heated determined based on the corrected temperature measurement model is greater than the reference temperature, the temperature measurement model can be corrected multiple times to ensure that the corrected temperature measurement model can accurately determine the temperature of the object to be heated.

[0116] Step S540: Determine the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit.

[0117] In some possible embodiments, before step S530, steps S523 and S536 may further be included.

[0118] Step S523: Obtain the working mode of the electrical device and the altitude information of the electrical device.

[0119] In this embodiment, the controller can determine the current working mode of the electrical device by reading the working mode flag bit.

[0120] In some possible embodiments, an altitude measuring instrument may be provided inside the electrical device, and the controller can determine the altitude information of the electrical device based on the altitude measuring instrument. In some other possible embodiments, the electrical device can be connected to a smart home system, and the controller can be connected to the local area network corresponding to the smart home system, and obtain the geographical location information of the space where the electrical device is located through the local area network, and then determine the altitude information of the electrical device based on the geographical location information.

[0121] Step S526: Determine the reference temperature based on the working mode, altitude information, and preset temperature mapping relationship.

[0122] In this embodiment, the temperature mapping relationship represents the corresponding relationship between different working modes, different altitude information, and different reference temperatures. Among them, the preset temperature mapping relationship can be a mapping table, and R & D personnel can summarize the above mapping table based on a large amount of test data. Here, taking the working mode as the boiling water mode as an example, in low altitude areas, the reference temperature can be 100 degrees; in high altitude areas, the reference temperature can be 90 degrees.

[0123] Since the controller in this embodiment considers the influence of altitude factors on the reference temperature when determining the reference temperature, the subsequent calibrated temperature measurement model can more accurately determine the temperature of the object to be heated, so as to ensure the normal operation of the electrical equipment.

[0124] This embodiment provides a control method for an electrical equipment, which is applied to the electrical equipment described above. The temperature measurement model in this method is a heat transfer model reflecting the heat transfer situation between the first temperature measurement unit and the second temperature measurement unit. This embodiment specifically introduces the derivation process of this heat transfer model and the calibration process of relevant parameters in the model, so as to ensure that the calibrated temperature measurement model can accurately determine the temperature of the object to be heated and ensure the normal operation of the electrical equipment.

[0125] Please refer to Figure 6 , Figure 6 which schematically shows a control method for an electrical equipment provided in the third embodiment of the present application. This method is applied to the electrical equipment 200 described above. Specifically, this method includes the following processes.

[0126] Step S605, obtain a first temperature correction value corresponding to the first temperature measurement unit and a second temperature correction value corresponding to the second temperature measurement unit.

[0127] In this embodiment, the first temperature correction value can be understood as the measurement error existing in the first temperature measurement unit. For example, when the actual temperature is 30 degrees and the temperature output by the first temperature measurement unit is 29.5 degrees, the measurement error is 0.5 degrees. That is, the first temperature correction value is 0.5 degrees. Specifically, the above measurement error may be caused by the installation deviation of the temperature measurement unit and the hardware error of the temperature measurement unit itself. Similarly, the second temperature correction value can be understood as the measurement error existing in the second temperature measurement unit.

[0128] In some possible embodiments, the tester can calibrate the above measurement error using a standard temperature source during the production process of the electrical equipment, and then store the calibration results (that is, the first temperature correction value corresponding to the first temperature measurement unit and the second temperature correction value corresponding to the second temperature measurement unit) in the memory of the controller. The controller can obtain the first temperature correction value corresponding to the first temperature measurement unit and the second temperature correction value corresponding to the second temperature measurement unit by reading the relevant data in the memory.

[0129] In some other possible embodiments, during the actual use of the electrical appliance, the controller can obtain the first temperature correction value corresponding to the first temperature measurement unit and the second temperature correction value corresponding to the second temperature measurement unit, so as to avoid the deviation of the original calibration result caused by the repair or replacement of the first temperature measurement unit or the second temperature measurement unit, and ensure that the determined first temperature correction value and second temperature correction value can be more accurate. Specifically, step S605 may include steps S6052 to S6056.

[0130] Step S6052, when the electrical appliance is not in the working state, obtain the first detected temperature corresponding to the first temperature measurement unit and the second detected temperature corresponding to the second temperature measurement unit.

[0131] "The electrical appliance is not in the working state" here refers to the state where the controller is powered on but the electrical appliance is not working. For example, the electrical appliance is in the standby state. In this case, the controller obtains the first detected temperature corresponding to the first temperature measurement unit and the second detected temperature corresponding to the second temperature measurement unit. At this time, in an ideal situation, the first detected temperature and the second detected temperature should be the same and equal to the ambient temperature of the space where the electrical appliance is located.

[0132] In some possible embodiments, the controller can obtain the first detected temperature corresponding to the first temperature measurement unit and the second detected temperature corresponding to the second temperature measurement unit every time it is powered on and started; the controller can also obtain the first detected temperature corresponding to the first temperature measurement unit and the second detected temperature corresponding to the second temperature measurement unit every specified number of days when the electrical appliance is not in the working state. Among them, the specified number of days can be 10 days, 30 days, etc.

[0133] In some possible embodiments, after the duration when the electrical appliance is not in the working state is greater than or equal to the default duration, the controller obtains the first detected temperature corresponding to the first temperature measurement unit and the second detected temperature corresponding to the second temperature measurement unit, so as to avoid the situation of obtaining the first detected temperature and the second detected temperature when the electrical appliance has just completed the heating task. At this time, the heat generated by the heating of the electrical appliance will interfere with the first detected temperature and the second detected temperature.

[0134] Among them, the default duration can be the default value in the controller, or can be adjusted by the R & D personnel based on the actual heat dissipation situation of the electrical appliance. Specifically, the default duration can be greater than or equal to 20 min. For example, the default duration is 20 min, 40 min, etc.

[0135] In this embodiment, when the duration when the electrical appliance is not in the working state is greater than or equal to the default duration, the first detected temperature and the second detected temperature are obtained, which can ensure that the electrical appliance dissipates heat sufficiently, so that the temperatures measured by the first temperature measurement unit and the second temperature measurement unit are the ambient temperature.

[0136] Step S6054, determine the temperature mean value of the first detected temperature and the second detected temperature.

[0137] Taking the first detected temperature as 26.6 degrees and the second detected temperature as 26 degrees as an example, the temperature mean value determined by the controller is 26.3 degrees.

[0138] Step S6056, determine the first temperature correction value corresponding to the first temperature measurement unit by taking the difference between the temperature mean value and the first detected temperature, and determine the second temperature correction value corresponding to the second temperature measurement unit by taking the difference between the temperature mean value and the second detected temperature.

[0139] Taking the first detected temperature as 26.6 degrees, the second detected temperature as 26 degrees, and the temperature mean value as 26.3 degrees as an example, the first temperature correction value corresponding to the first temperature measurement unit determined by the controller is -0.3 degrees, and the second temperature correction value corresponding to the second temperature measurement unit determined is 0.3 degrees.

[0140] Step S610, when the electrical device is in the working state, obtain the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit.

[0141] In this embodiment, step S610 includes steps S6110 to S6130.

[0142] Step S6110, when the electrical device is in the working state, obtain the first output temperature output by the first temperature measurement unit and the second output temperature output by the second temperature measurement unit.

[0143] Step S6120, correct the first output temperature based on the first temperature correction value to determine the first temperature corresponding to the first temperature measurement unit.

[0144] In this embodiment, the controller determines the first temperature corresponding to the first temperature measurement unit by adding the first temperature correction value and the first output temperature. Taking the first output temperature as 30 degrees and the first temperature correction value as -0.3 degrees as an example, the first temperature corresponding to the first temperature measurement unit determined by the controller is 29.7 degrees.

[0145] Step S6130, correct the second output temperature based on the second temperature correction value to determine the second temperature corresponding to the second temperature measurement unit.

[0146] In this embodiment, the controller determines the second temperature corresponding to the second temperature measurement unit by adding the second temperature correction value and the second output temperature. Taking the second output temperature as 35 degrees and the second temperature correction value as 0.3 degrees as an example, the second temperature corresponding to the second temperature measurement unit determined by the controller is 35.3 degrees.

[0147] Step S620: Determine the temperature of the object to be heated based on the first temperature, the second temperature, and a preset temperature measurement model.

[0148] Step S630: When the temperature of the object to be heated is greater than the reference temperature, correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature.

[0149] Step S640: Determine the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit.

[0150] Specifically, for the specific implementation manners of steps S620 to S640, reference may be made to the relevant descriptions in the foregoing embodiments, and details are not described herein again.

[0151] This embodiment provides a control method for an electrical appliance device, which is applied to the electrical appliance device in the foregoing text. The first temperature and the second temperature in this method are temperature values corrected by a controller, which can avoid the influence of the hardware error and installation error of the temperature measurement unit itself on the temperature measurement result.

[0152] Please refer to Figure 7 , Figure 7 FIG. schematically shows a structural block diagram of a control device 700 for an electrical appliance device provided in an embodiment of the present application. The device is applied to the electrical appliance device 200 in the foregoing text. Specifically, the control device 700 may include an acquisition module 710, a first determination module 720, a correction module 730, and a second determination module 740. The acquisition module 710 is configured to acquire a first temperature corresponding to a first temperature measurement unit and a second temperature corresponding to a second temperature measurement unit when the electrical appliance device is in a working state. The first determination module 720 is configured to determine the temperature of the object to be heated based on the first temperature, the second temperature, and a preset temperature measurement model; the temperature measurement model represents the corresponding relationship between the first temperature, the second temperature, and the temperature of the object to be heated. The correction module 730 is configured to correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature when the temperature of the object to be heated is greater than the reference temperature; the reference temperature represents the maximum temperature value that the electrical appliance device can reach in the current working mode. The second determination module 740 is configured to determine the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit.

[0153] In some possible embodiments, the temperature measurement model includes a preset heat transfer coefficient, and the preset heat transfer coefficient is determined based on the equivalent thermal resistance of the object to be measured and the equivalent thermal resistance of the heat transfer channel. The object to be measured includes a housing and an object to be heated. The correction module 730 is specifically configured to determine a reference heat transfer coefficient based on the first temperature, the second temperature, and the reference temperature when the temperature of the object to be heated is greater than the reference temperature; and correct the preset heat transfer coefficient based on the reference heat transfer coefficient.

[0154] In some possible embodiments, the calibration module 730 is specifically configured to determine a first coefficient and a second coefficient; the sum of the first coefficient and the second coefficient is 1, the first coefficient is greater than or equal to 0 and less than 1; determine the sum of the first product and the second product as the calibrated heat transfer coefficient of the temperature measurement model; wherein, the first product is the product of the first coefficient and a preset heat transfer coefficient, and the second product is the product of the second coefficient and a reference heat transfer coefficient.

[0155] In some possible embodiments, the control device 700 further includes a mode acquisition module (not shown in the figure) and a temperature determination module (not shown in the figure). When the temperature of the object to be heated is greater than the reference temperature, before the calibration module 730 calibrates the temperature measurement model based on the first temperature, the second temperature and the reference temperature, the mode acquisition module is configured to acquire the working mode of the electrical device and the altitude information of the electrical device. The temperature determination module is configured to determine the reference temperature based on the working mode, the altitude information and a preset temperature mapping relationship; the temperature mapping relationship characterizes the corresponding relationship between different working modes, different altitude information and different reference temperatures.

[0156] In some possible embodiments, the acquisition module 710 is specifically configured to, when the electrical device is in a working state, at a first moment, acquire a first sampled temperature corresponding to the first temperature measurement unit and a second sampled temperature corresponding to the second temperature measurement unit; at a second moment, acquire a third sampled temperature corresponding to the first temperature measurement unit and a fourth sampled temperature corresponding to the second temperature measurement unit, and the time duration between the second moment and the first moment is greater than or equal to a specified time duration; when the absolute value of the temperature difference between the third sampled temperature and the first sampled temperature is less than or equal to a first difference value, and the absolute value of the temperature difference between the fourth sampled temperature and the second sampled temperature is less than or equal to a second difference value, determine the third sampled temperature as the first temperature and the fourth sampled temperature as the second temperature.

[0157] In some possible embodiments, the control device 700 further includes a calibration value acquisition module (not shown in the figure). When the acquisition module 710 acquires the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit when the electrical device is in a working state, the calibration value acquisition module is configured to acquire a first temperature calibration value corresponding to the first temperature measurement unit and a second temperature calibration value corresponding to the second temperature measurement unit. The acquisition module 710 is specifically configured to, when the electrical device is in a working state, acquire a first output temperature output by the first temperature measurement unit and a second output temperature output by the second temperature measurement unit; calibrate the first output temperature based on the first temperature calibration value to determine the first temperature corresponding to the first temperature measurement unit; calibrate the second output temperature based on the second temperature calibration value to determine the second temperature corresponding to the second temperature measurement unit.

[0158] In some possible embodiments, the correction value acquisition module is specifically configured to, when the electrical device is not in a working state, acquire a first detected temperature corresponding to the first temperature measurement unit and a second detected temperature corresponding to the second temperature measurement unit; determine the temperature average value of the first detected temperature and the second detected temperature; determine the difference between the temperature average value and the first detected temperature as the first temperature correction value corresponding to the first temperature measurement unit, and determine the difference between the temperature average value and the second detected temperature as the second temperature correction value corresponding to the second temperature measurement unit.

[0159] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described devices and modules can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0160] In several embodiments provided by the present application, the coupling between modules can be electrical, mechanical, or other forms of coupling.

[0161] In addition, in each embodiment of the present application, each functional module can be integrated in a processing module, or each module can exist physically alone, or two or more modules can be integrated in one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0162] This embodiment provides a control device for an electrical device, and this device is applied to the electrical device described above. When the temperature of the object to be heated determined by the temperature measurement model in this device is greater than the reference temperature, the controller will correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature, which can overcome the influence of the detection error caused by the aging of the temperature measurement unit on the output result of the temperature measurement model, so as to ensure that the corrected temperature measurement model can accurately determine the temperature of the object to be heated and ensure the normal operation of the electrical device.

[0163] Please refer to Figure 8 , which shows an electrical device 800 provided by an embodiment of the present application. The controller in the electrical device 800 includes: one or more processors 810, a memory 820, and one or more application programs. Among them, one or more application programs are stored in the memory 820 and are configured to be executed by one or more processors 810, and one or more application programs are configured to execute the methods described in the above embodiments.

[0164] The processor 810 may include one or more processing cores. The processor 810 is connected to various parts within the entire battery management system through various interfaces and lines. By running or executing instructions, programs, code sets, or instruction sets stored in the memory 820, and by invoking the data stored in the memory 820, it performs various functions of the battery management system and processes data. Optionally, the processor 810 may be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), or programmable logic array (PLA). The processor 810 may integrate one or a combination of several of the central processing unit 810 (CPU), graphics processing unit 810 (GPU), and modem, etc. Among them, the CPU mainly processes the operating system, user interface, application programs, etc.; the GPU is responsible for rendering and drawing the displayed content; the modem is used to process wireless communication. It can be understood that the above modem may not be integrated into the processor 810 and may be implemented separately through a communication chip.

[0165] The memory 820 may include random access memory 820 (RAM), and may also include read-only memory 820 (ROM). The memory 820 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 820 may include a program storage area and a data storage area. Among them, the program storage area may store instructions for implementing the operating system, instructions for implementing at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above various method embodiments, etc. The data storage area may also store the data created during the use of the electronic device diagram (such as phone book, audio and video data, chat record data), etc.

[0166] Please refer to Figure 9 , which shows a computer-readable storage medium 900 provided by an embodiment of the present application. Computer program instructions 910 are stored in the computer-readable storage medium 900, and the computer program instructions 910 can be called by the processor to execute the methods described in the above embodiments.

[0167] The computer-readable storage medium 900 can be, for example, a flash memory, an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Electrical Programmable Read Only Memory (EPROM), a hard disk, or a Read-Only Memory (ROM). Optionally, the computer-readable storage medium 900 includes a non-transitory computer-readable storage medium. The computer-readable storage medium 900 has a storage space for computer program instructions 910 that execute any of the method steps in the above-described method. These computer program instructions 910 can be read from one or more computer program products or can be written into one or more computer program products.

[0168] In the description of the present application, certain terms are used to refer to specific components in the specification and claims. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As mentioned throughout the specification and claims, "including" is an open-ended term and should be interpreted as "including but not limited to"; "substantially" means that those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0169] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inside", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred components or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0170] In the present application, unless otherwise clearly specified or limited, terms such as "installed", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can also be the communication inside two components or just surface contact. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0171] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0172] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In the description of this application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0173] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this application.

Claims

1. An electrical device, characterized in that, Comprising: A housing having a first surface and a second surface facing away from each other, the second surface being adapted to place an object to be heated; A temperature measurement module adapted to be disposed on the first surface and configured to determine the temperature of the object to be heated; the temperature measurement module includes a first temperature measurement unit and a second temperature measurement unit, the first temperature measurement unit being disposed on the first surface; the second temperature measurement unit is spaced apart from the first temperature measurement unit and together with the first temperature measurement unit defines a heat transfer channel; And A controller electrically connected to the first temperature measurement unit and the second temperature measurement unit respectively, the controller being configured to: when the electrical device is in a working state, obtain a first temperature corresponding to the first temperature measurement unit and a second temperature corresponding to the second temperature measurement unit; determine the temperature of the object to be heated based on the first temperature, the second temperature and a preset temperature measurement model, the temperature measurement model characterizing the corresponding relationship between the first temperature, the second temperature and the temperature of the object to be heated; When the temperature of the object to be heated is greater than a reference temperature, correct the temperature measurement model based on the first temperature, the second temperature and the reference temperature; The reference temperature characterizes the maximum temperature value that the electrical device can reach in the current working mode; Determine the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit and the temperature corresponding to the second temperature measurement unit.

2. The electrical device according to claim 1, characterized in that, The heat transfer channel is provided with a heat transfer medium, and the heat transfer medium includes a heat conductive material or air.

3. The electrical device according to claim 1, characterized in that, The angle between the straight line where the temperature measurement point corresponding to the second temperature measurement unit and the temperature measurement point corresponding to the first temperature measurement unit is located and the first surface is greater than or equal to 75 degrees and less than or equal to 90 degrees; or The angle between the straight line where the temperature measurement point corresponding to the second temperature measurement unit and the temperature measurement point corresponding to the first temperature measurement unit is located and the first surface is greater than or equal to 0 degrees and less than or equal to 15 degrees.

4. The electrical device according to claim 1, wherein the temperature measurement module further includes a heat insulation member in contact with the first surface; the heat insulation member is provided with a temperature measurement cavity, and the temperature measurement cavity penetrates through one end of the heat insulation member to form an opening facing the first surface; The first temperature measurement unit is disposed in the opening, and the second temperature measurement unit is disposed in the temperature measurement cavity.

5. A control method for an electrical device, characterized in that, Applied to the electrical device according to any one of claims 1 to 4, the method includes: When the electrical device is in a working state, obtain a first temperature corresponding to the first temperature measurement unit and a second temperature corresponding to the second temperature measurement unit; Based on the first temperature, the second temperature and a preset temperature measurement model, determine the temperature of the object to be heated; the temperature measurement model characterizes the corresponding relationship between the first temperature, the second temperature and the temperature of the object to be heated; When the temperature of the object to be heated is greater than a reference temperature, correct the temperature measurement model based on the first temperature, the second temperature and the reference temperature; the reference temperature characterizes the maximum temperature value that the electrical device can reach in the current working mode; Determine the temperature of the object to be heated based on the calibrated temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit.

6. The control method according to claim 5, characterized in that The temperature measurement model includes a preset heat transfer coefficient, which is determined based on the equivalent thermal resistance of the object to be measured and the equivalent thermal resistance of the heat transfer channel. The object to be measured includes the housing of the electrical equipment and the object to be heated. When the temperature of the object to be heated is greater than the reference temperature, calibrating the temperature measurement model based on the first temperature, the second temperature, and the reference temperature includes: When the temperature of the object to be heated is greater than the reference temperature, determine a reference heat transfer coefficient based on the first temperature, the second temperature, and the reference temperature; Calibrate the preset heat transfer coefficient based on the reference heat transfer coefficient.

7. The control method according to claim 6, wherein The calibrating the preset heat transfer coefficient based on the reference heat transfer coefficient includes: Determine a first coefficient and a second coefficient; the sum of the first coefficient and the second coefficient is 1, the first coefficient is greater than or equal to 0 and less than 1; Determine the sum of a first product and a second product as the calibrated heat transfer coefficient of the temperature measurement model; wherein, the first product is the product of the first coefficient and the preset heat transfer coefficient, and the second product is the product of the second coefficient and the reference heat transfer coefficient.

8. The control method according to any one of claims 5 to 7, characterized in that Before calibrating the temperature measurement model based on the first temperature, the second temperature, and the reference temperature when the temperature of the object to be heated is greater than the reference temperature, the method further includes: Obtain the working mode of the electrical equipment and the altitude information of the electrical equipment; Determine the reference temperature based on the working mode, the altitude information, and a preset temperature mapping relationship; the temperature mapping relationship characterizes the corresponding relationship between different working modes, different altitude information, and different reference temperatures.

9. The control method according to any one of claims 5 to 7, characterized in that When the electrical equipment is in the working state, obtaining the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit includes: When the electrical equipment is in the working state, at a first moment, obtain a first sampled temperature corresponding to the first temperature measurement unit and a second sampled temperature corresponding to the second temperature measurement unit; At a second moment, obtain a third sampled temperature corresponding to the first temperature measurement unit and a fourth sampled temperature corresponding to the second temperature measurement unit, and the time duration between the second moment and the first moment is greater than or equal to a specified time duration; When the absolute value of the temperature difference between the third sampled temperature and the first sampled temperature is less than or equal to a first difference value, and the absolute value of the temperature difference between the fourth sampled temperature and the second sampled temperature is less than or equal to a second difference value, determine the third sampled temperature as the first temperature and the fourth sampled temperature as the second temperature.

10. The control method according to any one of claims 5 to 7, characterized in that, Before obtaining the first temperature corresponding to the first temperature measurement unit and the second temperature corresponding to the second temperature measurement unit when the electrical equipment is in the working state, the method further includes: Obtain a first temperature correction value corresponding to the first temperature measurement unit and a second temperature correction value corresponding to the second temperature measurement unit; When the electrical device is in the working state, obtaining a first temperature corresponding to the first temperature measurement unit and a second temperature corresponding to the second temperature measurement unit includes: When the electrical device is in the working state, obtaining a first output temperature output by the first temperature measurement unit and a second output temperature output by the second temperature measurement unit; Based on the first temperature correction value, correcting the first output temperature to determine the first temperature corresponding to the first temperature measurement unit; Based on the second temperature correction value, correcting the second output temperature to determine the second temperature corresponding to the second temperature measurement unit.

11. The control method according to claim 10, characterized in that Obtaining the first temperature correction value corresponding to the first temperature measurement unit and the second temperature correction value corresponding to the second temperature measurement unit includes: When the electrical device is not in the working state, obtaining a first detected temperature corresponding to the first temperature measurement unit and a second detected temperature corresponding to the second temperature measurement unit; Determining the temperature average value of the first detected temperature and the second detected temperature; Determining the difference between the temperature average value and the first detected temperature as the first temperature correction value corresponding to the first temperature measurement unit, and determining the difference between the temperature average value and the second detected temperature as the second temperature correction value corresponding to the second temperature measurement unit.

12. A control device for an electrical appliance, characterized in that, Applied to the electrical device according to any one of claims 1 to 4, the device includes: An obtaining module, configured to obtain a first temperature corresponding to the first temperature measurement unit and a second temperature corresponding to the second temperature measurement unit when the electrical device is in the working state; A first determination module, configured to determine the temperature of the object to be heated based on the first temperature, the second temperature, and a preset temperature measurement model; the temperature measurement model characterizes the corresponding relationship between the first temperature, the second temperature, and the temperature of the object to be heated; A correction module, configured to correct the temperature measurement model based on the first temperature, the second temperature, and the reference temperature when the temperature of the object to be heated is greater than the reference temperature; the reference temperature characterizes the maximum temperature value that the electrical device can reach in the current working mode; A second determination module, configured to determine the temperature of the object to be heated based on the corrected temperature measurement model, the temperature corresponding to the first temperature measurement unit, and the temperature corresponding to the second temperature measurement unit.

13. An electrical device, characterized in that, Includes: One or more processors; A memory; And One or more application programs, wherein one or more of the application programs are stored in the memory and are configured to be executed by one or more of the processors, and are configured to execute the method according to any one of claims 5 to 11.

14. A computer-readable storage medium, characterized in that, Computer program instructions are stored in the computer-readable storage medium, and the computer program instructions can be called by the processor to execute the method according to any one of claims 5 to 11.

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