Temperature control method, device and electronic equipment of magnetic heating element

Abstract

A method, device and electronic device (400) for controlling the temperature of a magnetic heating element, the method includes the steps of: acquiring parameter information of at least one heating element in a cigarette to be smoked; calculating a first magnetic field strength corresponding to the Curie temperature, and controlling a first current strength flowing through a coil in a smoking article to keep the magnetic field strength generated by the coil constant at the first magnetic field strength; receiving a temperature adjustment command, determining a required temperature corresponding to the temperature adjustment command, calculating a second current strength based on the required temperature and a temperature coefficient of resistance, and controlling the current strength flowing through the heating element to the second current strength. According to the temperature control method, the heating element is heated to the Curie temperature by the magnetic field strength generated by the coil, and then the current sense resistor material in the heating element is heated and temperature controlled by the TCR, thereby realizing the accuracy of the temperature adjustment.

Description

Cross-reference

[0001] This application claims priority based on a Chinese patent application filed with the China National Intellectual Property Administration on December 2, 2021, with an application number of 202111460311.2 and an invention title of "Temperature Control Method, Device and Electronic Device for Magnetic Heating Element", and the entire content thereof is incorporated herein by reference.

Technical Field

[0002] This application relates to the technical field of heating element temperature control, and specifically, to a temperature control method, device and electronic device for a magnetic heating element.

Background Art

[0003] A heat-not-burn smoking device needs to deposit an aerosol by heating the inserted tobacco. The traditional heating method is to insert a current sense resistance material such as a heating wire into the tobacco and energize it by the smoking device to perform TCR temperature control to achieve heating. In order to deposit the aerosol effectively and stably, the aerosol generation matrix generally requires a heating temperature of several hundred degrees. Therefore, such a method needs to increase the temperature by passing a large current, which causes the local aerosol generation matrix in the tobacco to overheat and be prone to charring.

[0004] Therefore, currently, it is changed to arrange a heating element made of a magnetic material in the tobacco and perform magnetic induction heating by a magnetic field coil provided in the heat-not-burn smoking device. The magnetic material has a Curie temperature characteristic, and the material has a large temperature change rate difference before and after reaching the Curie temperature, and the Curie temperatures corresponding to heating elements made of different magnetic materials are different. Therefore, the magnetic induction heating method cannot accurately adjust the heating temperature of the tobacco relatively accurately.

Summary of the Invention

Problems to be Solved by the Invention

[0005] Embodiments of the present application provide a method, an apparatus, and an electronic device for controlling the temperature of a magnetic heating element to solve the above problems.

Means for Solving the Problem

[0006] According to a first aspect, embodiments of the present application provide a method for controlling the temperature of a magnetic heating element, the method comprising: obtaining parameter information of at least one heating element in a tobacco to be smoked, wherein the heating element comprises a current sense resistance material, and the parameter information comprises the Curie temperature of the heating element and the temperature coefficient of resistance of the current sense resistance material; calculating a first magnetic field strength corresponding to the Curie temperature, controlling a first current intensity flowing through a coil in a smoking device, and making the magnetic field strength generated by the coil constant to the first magnetic field strength; receiving a temperature adjustment command, determining a required temperature corresponding to the temperature adjustment command, calculating a second current intensity based on the required temperature and the temperature coefficient of resistance, and controlling the current intensity flowing through the heating element to the second current intensity.

[0007] Preferably, the step of calculating the first magnetic field strength corresponding to the Curie temperature comprises: when there are at least two Curie temperatures, determining a first Curie temperature with the lowest temperature, and calculating a first magnetic field strength corresponding to the first Curie temperature; when there is only one Curie temperature, determining the Curie temperature as the first Curie temperature, and calculating a first magnetic field strength corresponding to the first Curie temperature.

[0008] Preferably, the step of calculating the second current intensity based on the required temperature and the temperature coefficient of resistance comprises: calculating a first temperature difference between the required temperature and the first Curie temperature; calculating a second current intensity based on the first temperature difference and the temperature coefficient of resistance.

[0009] Preferably, after controlling the first current intensity flowing through the coil in the smoking device to make the magnetic field intensity generated by the coil constant at the first magnetic field intensity, when there are at least two of the Curie temperatures, determining each second Curie temperature and calculating each second temperature difference between each of the second Curie temperatures and the first Curie temperature, wherein the second Curie temperature is a Curie temperature other than the first Curie temperature, calculating each third current intensity based on the resistance temperature coefficient corresponding to each of the second Curie temperatures and each of the second temperature differences, and respectively controlling the current intensity flowing through each second heating element to the third current intensity, wherein the heating element includes a first heating element and the second heating element, the Curie temperature corresponding to the first heating element is the first Curie temperature, and the Curie temperature corresponding to the second heating element is the second Curie temperature, further includes.

[0010] Preferably, the step of calculating the second current intensity based on the first temperature difference and the resistance temperature coefficient is when the heating element is the first heating element, calculating the second current intensity based on the first temperature difference and the resistance temperature coefficient, when the heating element is the second heating element, determining an actual temperature difference based on the first temperature difference and the second temperature difference, and calculating the second current intensity based on the actual temperature difference and the resistance temperature coefficient.

[0011] Preferably, the step of receiving the temperature adjustment command and determining the required temperature corresponding to the temperature adjustment command is receiving the temperature adjustment command, determining each required temperature corresponding to the temperature adjustment command, and determining each target heating element corresponding to each required temperature.

[0012] According to a second aspect, an embodiment of the present application provides a temperature control device for a magnetic heating element, the device includes An acquisition module that acquires parameter information of at least one heating element in a tobacco product to be smoked, wherein the heating element includes a current sense resistance material, and the parameter information includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current sense resistance material. A calculation module that calculates a first magnetic field strength corresponding to the Curie temperature, controls a first current intensity flowing through a coil in a smoking device, and makes the magnetic field strength generated by the coil constant to the first magnetic field strength. A receiving module that receives a temperature adjustment command, determines a required temperature corresponding to the temperature adjustment command, calculates a second current intensity based on the required temperature and the temperature coefficient of resistance, and controls the current intensity flowing through the heating element to the second current intensity.

[0013] According to a third aspect, an embodiment of the present application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable by the processor. When the processor executes the computer program, it realizes the steps of the method provided by the first aspect or any possible implementation form of the first aspect.

[0014] According to a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it realizes the method provided by the first aspect or any possible implementation form of the first aspect.

Advantages of the Invention

[0015] The beneficial effects of the present invention are as follows. By adding a current sense resistance material to the heating element, after the heating element is heated to the Curie temperature by the magnetic field strength generated by the coil, the TCR performs heating and temperature control on the current sense resistance material in the heating element, ensuring the accuracy of temperature regulation. In addition, since the temperature of the heating element has already reached the Curie temperature under the action of the magnetic field, it is only necessary to start TCR heating on the heating element from the Curie temperature, avoiding the problem that in the traditional TCR heating method, the local aerosol generation matrix burns due to too large a current.

Brief Description of the Drawings

[0016] To more clearly explain the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments are briefly introduced below. The following drawings are only some embodiments of the present application. On the premise that those skilled in the art do not need to perform inventive labor, other drawings can be obtained based on these drawings.

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0017] Hereinafter, in combination with the drawings of the embodiments of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described.

[0018] In the following introduction, terms such as "first" and "second" are used only for the purpose of explanation and are not to be understood as indicating or suggesting relative importance. The following introduction provides multiple embodiments of the present application, and since different embodiments can be replaced or combined with each other, the present application may include all possible combinations of the same and / or different embodiments described. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, in the following content, even if the embodiment is not clearly described, the present application should also be considered to include embodiments having one or more other all possible combinations of A, B, C, and D.

[0019] The following description provides examples and does not limit the scope, applicability, or examples described in the claims. The functions and installations of the described elements may be changed without departing from the scope of the content of the present application. For each illustration, each process or component may be appropriately omitted, replaced, or added. For example, the described method can be executed in an order different from the described order, and each step can be added, omitted, or combined. Also, the features described in some examples may be combined with other examples.

[0020] Referring to FIG. 1, FIG. 1 is a flow schematic diagram of a method for controlling the temperature of a magnetic heating element provided by an embodiment of the present application. In the embodiment of the present application, the method includes the following steps. Step S101: Obtain parameter information of at least one heating element in the tobacco to be smoked, the heating element includes a current sense resistance material, and the parameter information includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current sense resistance material.

[0021] The execution entity of the present application may be a controller of a heat-not-burn smoking device.

[0022] In the embodiments of the present application, a normal heating element is generally manufactured from a magnetic material such as an alloy, and generates heat under the action of a coil magnetic field. However, in the manufacturing process of the heating element used in the present application, in addition to the addition of magnetic materials, a current sense resistance material such as manganese copper is added. In addition, for the selection of the manufacturing material of a normal heating element, a steel body capable of generating eddy currents under the action of a magnetic field is required. However, the heating element has a Curie temperature characteristic, that is, before reaching the Curie temperature, the temperature rise rate is fast and difficult to control. After reaching the Curie temperature, a paramagnetic material is formed, and the temperature rise rate tends to become gentle and is relatively easy to control. Therefore, in order to match the temperature reached by the heating element with the actual heating needs, generally, the Curie temperature of the heating element is made close to the normal heating temperature of the actual smoking device. Therefore, the heating element provided in the tobacco generally uses an alloy, and the adjustment of the Curie temperature is realized by the mixing ratio of different materials in the alloy. Since the metal material in the current sense resistance material can also be used as the manufacturing material of the alloy, it is completely feasible to add the current sense resistance material to the heating element. Finally, if the adjusted Curie temperature is appropriate, such a method will not affect the electromagnetic heating process of the heating element.

[0023] Exemplarily, as shown in FIG. 2, the heating element used in the present application may be a composite of a ferrite having a negative temperature coefficient of resistance on the surface of a heating metal. As a result, in the low-temperature section, the temperature coefficient of resistance of the material becomes zero, that is, the magnitude of the resistance does not change with temperature. The ferrite has a Curie temperature of 200 to 300 and provides high-temperature and chemical protection for the heating metal. When the heating temperature reaches the Curie temperature of the ferrite, the magnetism of the ferrite decreases, the heating efficiency decreases, and an increase in inductance current is caused. The temperature can be recognized and calibrated by this signal. As the temperature continues to rise, the increase in metal resistance becomes dominant, so the overall resistance increases, and temperature control and temperature recognition can be performed in the TCR method.

[0024] Specifically, after the tobacco to be smoked is inserted into the heat-not-burn smoking device, the controller obtains the parameter information of the heating element in the tobacco to be smoked by recognizing the two-dimensional code on the tobacco to be smoked, etc., and based on this, determines the Curie temperature of the heating element and the temperature coefficient of resistance of the current sense resistance material applied to the heating element.

[0025] S102: Calculate the first magnetic field strength corresponding to the Curie temperature, control the first current strength flowing through the coil in the smoking device, and make the magnetic field strength generated by the coil constant to the first magnetic field strength.

[0026] In the embodiments of the present application, since the number of turns and thickness of the coil provided in the smoking device are determined, if the magnitude of the current flowing through the coil is determined, the magnitude of the magnetic field strength generated by the coil can be determined, and further, the magnitude of the heat generated by the magnetic field heating target can be determined, and the corresponding relationship can be determined by experiments, simulations, etc. at the design stage of the smoking device. Therefore, after knowing the Curie temperature of the heating element, the Curie temperature can be set as the generation temperature of the heating element required during the normal heating operation of the smoking device. Thus, calculate the first magnetic field strength for heating the temperature of the heating element to the Curie temperature, and further calculate and determine the first current strength corresponding to the first magnetic field strength. Based on this, control the first current strength flowing through the coil in the smoking device to make the magnetic field strength generated by the coil constant to the first magnetic field strength, and ensure that the temperature of the heating element is maintained at the Curie temperature.

[0027] In a possible embodiment, the step of calculating the first magnetic field strength corresponding to the Curie temperature includes: When there are at least two of the Curie temperatures, determining the first Curie temperature with the lowest temperature and calculating the first magnetic field strength corresponding to the first Curie temperature; When there is only one Curie temperature, determining the Curie temperature as the first Curie temperature and calculating the first magnetic field strength corresponding to the first Curie temperature.

[0028] In an embodiment of the present application, there may be a plurality of heating elements in the tobacco to be smoked. Due to the need to heat different parts of the tobacco at different temperatures, the material compositions of the heating elements in the same tobacco are different, that is, the Curie temperatures of the heating elements may be different. In this case, the heating method based only on the magnetic field has a new problem that under the change of the magnetic field, the temperatures of all the heating elements change, the change ranges of the temperatures are different, and further, it affects the accuracy of adjusting the temperature by the magnetic field strength. One of the solutions in the prior art is to arrange magnetic field coils with different numbers of turns and different coil thicknesses at different positions in the smoking device to adjust the magnetic field strengths at different locations respectively. In such a method, magnetic field coils with different specifications have to be produced targeted, the cost of the device is high, and the magnetic field heating of the coil can only adjust the temperature to a general range, and the problem cannot be solved. In addition, the applicability of the device is low, and when the smoked tobacco is changed, the adjustment accuracy still cannot be guaranteed.

[0029] Specifically, since the present application performs temperature adjustment independent of the magnetic field strength, it only performs initial temperature rise on the heating element by the magnetic field strength, and then controls the temperature by the TCR. Since the temperature difference between the Curie temperatures of different heating elements is not particularly large, when there are two or more Curie temperatures, that is, two or more different heating elements, the first Curie temperature with the lowest temperature is determined from them, and it is heated as the first magnetic field strength corresponding to the standard control. For other heating elements that have not reached their own Curie temperatures, after the temperature is raised to the first Curie temperature, further temperature rise adjustment can be performed in the TCR mode. If there is no single Curie temperature, the Curie temperature is directly determined and calculated as the first Curie temperature.

[0030] S103: Receive a temperature adjustment command, determine the required temperature corresponding to the temperature adjustment command, calculate a second current intensity based on the required temperature and the resistance temperature coefficient, and control the current intensity flowing through the heating element to the second current intensity.

[0031] In an embodiment of the present application, the temperature adjustment command is a command that is correspondingly generated within the smoking device when a user performs an adjustment operation on the heating temperature within the smoking device, such as pressing a key.

[0032] In an embodiment of the present application, the heating needs for tobacco vary among users. Some users desire to increase the heating temperature to accelerate the deposition of aerosol, thereby improving the flavor concentration per inhalation. When the user performs an adjustment operation on the heating temperature of the smoking device, a temperature adjustment command is generated. After receiving the temperature adjustment command, the controller can analyze the temperature adjustment command to determine the required temperature that needs adjustment. Furthermore, based on the required temperature and the resistance temperature coefficient corresponding to the heating element, a second current intensity can be calculated. Based on this, the current intensity flowing through the heating element is controlled, and furthermore, the resistance value of the current sense resistance material is controlled. Finally, by changing the resistance value, a TCR temperature control adjustment process for the heating element is realized. The heating method of the heating element by the magnetic field of the coil can only heat the temperature of the heating element within a roughly defined temperature range and cannot achieve precise adjustment of the temperature. Only the value of the Curie temperature can be accurately determined. Therefore, in the present application, after heating the temperature of the heating element to the Curie temperature by the electromagnetic heating method, TCR temperature control is performed on the heating element by the resistance temperature coefficient. Since the resistance temperature coefficient is determined, that is, the relationship between resistance and temperature is determined, accurate adjustment of the temperature can be realized in such a manner. The TCR heating temperature control method only needs to control the temperature of the heating element from the Curie temperature, that is, the numerical value of the temperature to be adjusted is small, and the magnitude of the required current is also small. This avoids the problem that in the traditional heating method that fully performs heating by TCR, it is necessary to control a temperature increase of several hundred degrees, and the current is too large, which affects the local aerosol generation matrix.

[0033] The heating element in the tobacco to be smoked is installed in a cross-sectional form so that it can be in direct close contact with the inner wall of the smoking device, thereby realizing direct close contact with the circuit provided on the inner wall of the smoking device and facilitating the energization of the heating element of the smoking device.

[0034] In a possible embodiment, the step of calculating the second current intensity based on the required temperature and the temperature coefficient of resistance includes: calculating a first temperature difference between the required temperature and the first Curie temperature; calculating the second current intensity based on the first temperature difference and the temperature coefficient of resistance. and includes:

[0035] In the embodiments of the present application, the required temperature set by the user is the actual heating temperature desired by the user. For the TCR heating method, it is only necessary to heat by the temperature difference between the first Curie temperature and the required temperature. Therefore, before calculating the second current intensity, first calculate the first temperature difference, then calculate and determine the resistance value that needs to be changed according to the first temperature difference and the corresponding temperature coefficient of resistance, and finally determine and obtain the second current intensity.

[0036] In a possible embodiment, after controlling the first current intensity flowing through the coil in the smoking device to make the magnetic field intensity generated by the coil constant at the first magnetic field intensity, when there are at least two Curie temperatures, determining each second Curie temperature and calculating each second temperature difference between each second Curie temperature and the first Curie temperature, where the second Curie temperature is a Curie temperature other than the first Curie temperature; calculating each third current intensity based on the temperature coefficient of resistance corresponding to each second Curie temperature and each second temperature difference, and respectively controlling the current intensity flowing through each second heating element to the third current intensity, where the heating elements include a first heating element and the second heating element, the Curie temperature corresponding to the first heating element is the first Curie temperature, and the Curie temperature corresponding to the second heating element is the second Curie temperature; and further includes:

[0037] In the embodiments of the present application, for a plurality of heating elements, by means of the aforementioned heating step, only the heating element with the lowest Curie temperature can be heated up to the corresponding Curie temperature, and the temperatures of the remaining heating elements have not yet been raised to the corresponding Curie temperatures. As can be seen from the above description, in the design stage of the heating element, its Curie temperature is the desired operating temperature of the heating element for the designer, that is, the heating temperature of this part when it is desired that the tobacco is smoked normally. Therefore, in the manner of TCR temperature control, the temperatures of other heating elements are raised to the corresponding Curie temperatures.

[0038] Specifically, when there are at least two Curie temperatures, the first Curie temperature is excluded from each obtained Curie temperature to obtain each remaining second Curie temperature, and the difference value between each second Curie temperature and the first Curie temperature is calculated respectively, that is, to determine how many degrees the temperature of each heating element needs to be raised in order to reach the second Curie temperature. After determining each second temperature difference, based on this, a third current intensity is calculated, and each second heating element is controlled so that the correspondingly calculated third current intensity flows through it, whereby in the initial state where the temperature adjustment has not been performed, each heating element is at the corresponding Curie temperature.

[0039] In a possible embodiment, the step of calculating the second current intensity based on the first temperature difference and the temperature coefficient of resistance includes when the heating element is the first heating element, the step of calculating the second current intensity based on the first temperature difference and the temperature coefficient of resistance, and when the heating element is the second heating element, the step of determining the actual temperature difference based on the first temperature difference and the second temperature difference, and calculating the second current intensity based on the actual temperature difference and the temperature coefficient of resistance.

[0040] In an embodiment of the present application, for the second heating element, in order to reach the corresponding Curie temperature, a current with a second current intensity is already flowing. Therefore, when it is necessary to perform temperature adjustment on the second heating element, in order to ensure the accuracy of temperature adjustment, it is necessary to re-determine the actual temperature difference based on the first temperature difference and the second temperature difference, and calculate the second current intensity based on the actual temperature difference and the temperature coefficient of resistance. For the first heating element, since no separate current is flowing, the second current intensity is directly calculated based on the first temperature difference.

[0041] In a possible embodiment, the step of receiving the temperature adjustment command and determining the required temperature corresponding to the temperature adjustment command is including the steps of receiving a temperature adjustment command, determining each required temperature corresponding to the temperature adjustment command, and determining each target heating element corresponding to each required temperature.

[0042] In an embodiment of the present application, for a cigarette having a plurality of heating elements, each heating element can be individually temperature-adjusted. Specifically, when the controller receives a temperature adjustment command, in addition to determining the required temperature, it determines the target heating element corresponding to each required temperature from the temperature adjustment command, so as to simultaneously perform temperature adjustment on a plurality of heating elements.

[0043] Hereinafter, in combination with FIG. 3, the temperature control device of the magnetic heating element provided by the embodiment of the present application will be introduced in detail. Here, the temperature control device of the magnetic heating element shown in FIG. 3 is for executing the method of the embodiment shown in FIG. 1 of the present application. For the sake of convenience of description, only the part related to the embodiment of the present application is shown. For the specific technical details not disclosed, reference may be made to the embodiment shown in FIG. 1 of the present application.

[0044] Referring to FIG. 3, FIG. 3 is a schematic structural diagram of the temperature control device of the magnetic heating element provided by the embodiment of the present application. As shown in FIG. 3, the device is An acquisition module 301 for acquiring parameter information of at least one heating element in a tobacco product to be smoked, wherein the heating element includes a current sense resistance material, and the parameter information includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current sense resistance material. A calculation module 302 that calculates a first magnetic field strength corresponding to the Curie temperature and controls a first current intensity flowing through a coil in a smoking device to make the magnetic field strength generated by the coil constant to the first magnetic field strength. A receiving module 303 that receives a temperature adjustment command, determines a required temperature corresponding to the temperature adjustment command, calculates a second current intensity based on the required temperature and the temperature coefficient of resistance, and controls the current intensity flowing through the heating element to the second current intensity. Including.

[0045] In a possible embodiment, the calculation module 302 When there are at least two of the Curie temperatures, a first temperature determination unit that determines a first Curie temperature with the lowest temperature and calculates a first magnetic field strength corresponding to the first Curie temperature. When there is only one Curie temperature, a second temperature determination unit that determines the Curie temperature as the first Curie temperature and calculates a first magnetic field strength corresponding to the first Curie temperature.

[0046] In a possible embodiment, the receiving module 303 A first calculation unit that calculates a first temperature difference between the required temperature and the first Curie temperature. A second calculation unit that calculates a second current intensity based on the first temperature difference and the temperature coefficient of resistance.

[0047] In a possible embodiment, the second temperature determination unit When there are at least two of the Curie temperatures, a first calculation component that determines each second Curie temperature and calculates each second temperature difference between each said second Curie temperature and the first Curie temperature, wherein the second Curie temperature is a Curie temperature other than the first Curie temperature, a second calculation component that calculates each third current intensity based on the temperature coefficient of resistance corresponding to each said second Curie temperature and each said second temperature difference, and controls the current intensity flowing through each second heating element to the respective third current intensity, wherein the heating element includes a first heating element and the second heating element, the Curie temperature corresponding to the first heating element is the first Curie temperature, and the Curie temperature corresponding to the second heating element is the second Curie temperature, including.

[0048] In a possible embodiment, the receiving module 303, a first processing unit that calculates a second current intensity based on the first temperature difference and the temperature coefficient of resistance when the heating element is the first heating element, a second processing unit that determines an actual temperature difference based on the first temperature difference and the second temperature difference when the heating element is the second heating element, and calculates the second current intensity based on the actual temperature difference and the temperature coefficient of resistance, further including.

[0049] In a possible embodiment, the receiving module 303, further includes a receiving unit that receives a temperature adjustment command, determines each required temperature corresponding to the temperature adjustment command, and determines each target heating element corresponding to each said required temperature.

[0050] As those skilled in the art know, the technical solutions of the embodiments of the present application can be realized by software and / or hardware. The "units" and "modules" in this specification are software and / or hardware that can complete specific functions independently or in cooperation with other components. The hardware may be, for example, a Field-Programmable Gate Array (FPGA), an Integrated Circuit (IC), etc.

[0051] Each processing unit and / or module of the embodiments of the present application may be realized by an analog circuit that realizes the functions described in the embodiments of the present application, or may be realized by software that executes the functions described in the embodiments of the present application.

[0052] Referring to FIG. 4, it is a structural schematic diagram of an electronic device related to the embodiments of the present application, and the electronic device can implement the method of the embodiment shown in FIG. 1. As shown in FIG. 4, the electronic device 400 may include at least one Central Processing Unit 401, at least one Network Interface 404, a User Interface 403, a Memory 405, and at least one Communication Bus 402.

[0053] The communication bus 402 realizes the connection and communication between these components.

[0054] The user interface 403 includes a display and a camera. Preferably, the user interface 403 may further include a standard wired interface and a wireless interface.

[0055] Preferably, the network interface 404 may include a standard wired interface and a wireless interface (for example, a WI-FI interface).

[0056] The central processing unit 401 includes one or more processing cores. The central processing unit 401 connects each part within the entire electronic device 400 using various interfaces and circuits, runs or executes instructions, programs, code sets, or instruction sets stored in the memory 405, and calls the data stored in the memory 405 to execute various functions and processing data of the terminal 400. Preferably, the central processing unit 401 may be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), or programmable logic array (PLA). One or several combinations of a central processing unit (CPU), a graphics processing unit (GPU), and a modem may be integrated into the central processing unit 401. The CPU mainly processes the operating system, user interface, application programs, etc. The GPU is responsible for rendering and drawing the content that needs to be displayed on the display. The modem processes wireless communication. Here, the above modem may not be integrated into the central processing unit 401 and may be realized by a single chip alone.

[0057] The memory 405 may include a Random Access Memory (RAM), or may include a Read-Only Memory. Preferably, the memory 405 includes a non-transitory computer-readable storage medium. The memory 405 stores instructions, programs, codes, code sets, or instruction sets. The memory 405 includes a program storage area for storing instructions for implementing an operating system, instructions for at least one function (such as a touch control function, an audio playback function, an image playback function, etc.), and instructions for implementing each of the above method embodiments, and a data storage area for storing data related to each of the above method embodiments. Preferably, the memory 405 may be at least one storage device disposed away from the above central processing unit 401. As shown in FIG. 4, the memory 405 as a computer storage medium may include an operating system, a network communication module, a user interface module, and program instructions.

[0058] In the electronic device 400 shown in FIG. 4, the user interface 403 is mainly used as an interface for providing inputs to the user, obtaining data input by the user, and the central processing unit 401 calls the temperature control application program of the magnetic heating element stored in the memory 405, specifically, obtaining parameter information of at least one heating element in the tobacco to be smoked, wherein the heating element includes a current sense resistance material, and the parameter information includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current sense resistance material; calculating a first magnetic field strength corresponding to the Curie temperature, controlling a first current intensity flowing through a coil in the smoking device, and making the magnetic field strength generated by the coil constant to the first magnetic field strength; Receiving a temperature adjustment command, determining a required temperature corresponding to the temperature adjustment command, calculating a second current intensity based on the required temperature and the resistance temperature coefficient, and controlling the current intensity flowing through the heating element to the second current intensity.

[0059] This application further provides a computer-readable storage medium storing a computer program, and when the program is executed by a processor, the steps of the above method are realized. The computer-readable storage medium may include, for example, a floppy disk, an optical disk, a DVD, a CD-ROM, a microdrive, a magneto-optical disk, a ROM, a RAM, an EPROM, an EEPROM, a DRAM, a VRAM, a flash memory device, a magnetic card or an optical card, any type of disk including a nanosystem (including a molecular memory IC), or any type of medium or device suitable for storing instructions and / or data, but is not limited thereto.

[0060] Note that for each of the above method embodiments, for the sake of simplicity of description, they are all expressed as a combination of a series of operations. However, as those skilled in the art know, this application is not limited to the described order of operations, because according to this application, some steps may be performed in other orders or simultaneously. Also, as those skilled in the art know, the embodiments described in the specification are all preferred embodiments, and the related operations and modules are not essential to this application.

[0061] In the above embodiments, the description of each embodiment has its own focus. For parts not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.

[0062] In some embodiments provided by this application, the disclosed device may be implemented in other forms. For example, the device embodiments described above are merely illustrative. For example, the partitioning of the above-mentioned units is merely a partitioning of logical functions. When actually implemented, there are other partitioning methods. For example, a plurality of units or components may be integrated into or combined with another system, or some features may be ignored or not executed. Also, the couplings, or direct couplings, or communication connections between each other shown or described may be indirect couplings or communication connections by some service interfaces, devices or units, and may be in electrical or other forms.

[0063] The units described as separate components may or may not be physically separated. The members shown as units may or may not be physical units, that is, they may be located in one place or distributed among a plurality of network units. According to actual needs, some or all of these units can be selected to achieve the purpose of the solution of this embodiment.

[0064] Also, each functional unit in each embodiment of this application may be integrated into one processing unit, or each unit may physically exist individually, or furthermore, two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional means.

[0065] If the above integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable memory. Based on such an understanding, the essence of the technical solution of this application, or the part that contributes to the prior art, or all or part of the technical solution may be embodied in the form of a software product. The computer software product is stored in a memory and contains several instructions for causing a computer device (such as a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in each embodiment of this application. The above memory includes media that can store program codes, such as a USB memory, a read-only memory (ROM), a random access memory (RAM), a portable hard disk, a magnetic disk, or an optical disk.

[0066] As can be understood by those skilled in the art, all or part of the steps in each method of the above embodiments are completed by instructing the relevant hardware through a program. The program is stored in a computer-readable memory, and the memory can include a flash memory, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0067] The above does not limit the scope of the present disclosure, but is merely an exemplary embodiment of the present disclosure. That is, any equivalent changes and modifications completed based on the teachings of the present disclosure fall within the coverage scope of the present disclosure. After those skilled in the art consider the specification and implement its disclosure, the embodiments of the present disclosure can be easily conceived. This application is intended to cover any variations, uses, or adaptive changes of the present disclosure, and these variations, uses, or adaptive changes comply with the general principles of the present disclosure and include the well-known common knowledge or ordinary technical means in the art that are not described in the present disclosure. The specification and examples are merely exemplary, and the scope and spirit of the present disclosure are limited by the claims.

Claims

1. A method for controlling the temperature of a magnetic heating element, comprising: obtaining parameter information of at least one heating element in a tobacco to be smoked, wherein the heating element includes a current sense resistance material, and the parameter information includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current sense resistance material; calculating a first magnetic field strength corresponding to the Curie temperature, and controlling a first current intensity flowing through a coil in a smoking device to make the magnetic field strength generated by the coil constant at the first magnetic field strength; receiving a temperature adjustment command, determining a required temperature corresponding to the temperature adjustment command, calculating a second current intensity based on the required temperature and the temperature coefficient of resistance, and controlling the current intensity flowing through the heating element to the second current intensity; The method is characterized by including the above steps.

2. The step of calculating the first magnetic field strength corresponding to the Curie temperature includes: when there are at least two Curie temperatures, determining a first Curie temperature with the lowest temperature, and calculating a first magnetic field strength corresponding to the first Curie temperature; when there is only one Curie temperature, determining the Curie temperature as the first Curie temperature, and calculating a first magnetic field strength corresponding to the first Curie temperature; The method according to claim 1, characterized by including the above steps.

3. The step of calculating the second current intensity based on the required temperature and the temperature coefficient of resistance includes: calculating a first temperature difference between the required temperature and the first Curie temperature; calculating a second current intensity based on the first temperature difference and the temperature coefficient of resistance; The method according to claim 2, characterized by including the above steps.

4. After controlling the first current intensity flowing through the coil in the smoking device to make the magnetic field strength generated by the coil constant at the first magnetic field strength, when there are at least two Curie temperatures, determining each second Curie temperature, and calculating each second temperature difference between each second Curie temperature and the first Curie temperature, wherein the second Curie temperature is a Curie temperature other than the first Curie temperature; Calculating each third current intensity based on the temperature coefficient of resistance corresponding to each of the second Curie temperatures and each of the second temperature differences, and controlling the current intensity flowing through each second heating element to the third current intensity respectively, wherein the heating element includes a first heating element and the second heating element, the Curie temperature corresponding to the first heating element is the first Curie temperature, and the Curie temperature corresponding to the second heating element is the second Curie temperature; The method according to claim 3, further comprising the above.

5. The step of calculating the second current intensity based on the first temperature difference and the temperature coefficient of resistance includes: When the heating element is the first heating element, calculating the second current intensity based on the first temperature difference and the temperature coefficient of resistance; When the heating element is the second heating element, determining an actual temperature difference based on the first temperature difference and the second temperature difference, and calculating the second current intensity based on the actual temperature difference and the temperature coefficient of resistance; The method according to claim 4, characterized by including the above.

6. The step of receiving the temperature adjustment command and determining the required temperature corresponding to the temperature adjustment command includes: Receiving a temperature adjustment command, determining each required temperature corresponding to the temperature adjustment command, and determining each target heating element corresponding to each required temperature; The method according to claim 1, characterized by including the above.

7. A temperature control device for a magnetic heating element, comprising: An acquisition module for acquiring parameter information of at least one heating element in a tobacco to be smoked, wherein the heating element includes a current sense resistance material, and the parameter information includes the Curie temperature of the heating element and the temperature coefficient of resistance of the current sense resistance material; A calculation module for calculating a first magnetic field intensity corresponding to the Curie temperature, controlling a first current intensity flowing through a coil in a smoking device, and making the magnetic field intensity generated by the coil constant to the first magnetic field intensity; A receiving module for receiving a temperature adjustment command, determining a required temperature corresponding to the temperature adjustment command, calculating a second current intensity based on the required temperature and the temperature coefficient of resistance, and controlling the current intensity flowing through the heating element to the second current intensity; An apparatus characterized by including the above.

8. An electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor. When executing the computer program, the processor realizes the method according to any one of claims 1 to 6. An electronic device characterized by the above. **Claim 9** A computer-readable storage medium storing a computer program, wherein the computer program realizes the method according to any one of claims 1 to 6 when executed by a processor.

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