Temperature control method and system based on electromagnetic induction

Abstract

The invention relates to the technical field of electronic heating, in particular to a temperature control method and system based on electromagnetic induction. According to the scheme, when the aerosol generating substrate is inserted into the electromagnetic induction element, the magnetic field of the electromagnetic induction element changes, the magnetic field change signal is obtained, and the starting signal is triggered through the magnetic field change signal so as to control the electromagnetic induction element to start heating; then, acquiring real-time temperature data in the electromagnetic induction element, and calculating a temperature deviation according to the real-time temperature data and the target temperature data to output a deviation result; and finally, converting the deviation result into a PWM (Pulse Width Modulation) signal, and controlling the heating temperature of the electromagnetic induction element according to the PWM signal so as to reduce the temperature deviation. By the adoption of the mode, accurate control over the temperature of the heating non-combustion appliance is achieved, and heating consistency can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic heating, and in particular to a temperature control method and system based on electromagnetic induction. Background Art

[0002] At present, the temperature control method of heating non-combustion appliances on the market is basically to control the temperature of the heating element by detecting the change in the resistance of the heating element, that is, to achieve temperature control through the TCR value. This is affected by the accuracy of the heating element and easily leads to problems such as inaccurate temperature control and poor consistency. Summary of the invention

[0003] The electromagnetic induction-based temperature control method and system provided by the present invention effectively solve the problems of poor temperature control accuracy and consistency of existing heating-without-combustion appliances.

[0004] According to the first aspect, an embodiment provides a temperature control method based on electromagnetic induction, comprising:

[0005] Acquire a magnetic field change signal of an electromagnetic induction element;

[0006] triggering a power-on signal according to the magnetic field change signal to control the electromagnetic induction element to start heating;

[0007] Acquiring real-time temperature data inside the electromagnetic induction element;

[0008] Calculating a temperature deviation based on the real-time temperature data and the preset target temperature data to output a deviation result;

[0009] The deviation result is converted into a PWM signal, and the heating temperature of the electromagnetic induction element is controlled according to the PWM signal to reduce the temperature deviation.

[0010] In one feasible implementation, the magnetic field change signal is generated by inserting an aerosol generating substrate with a metal structure into the electromagnetic induction element.

[0011] In an achievable implementation, the calculating the temperature deviation according to the real-time temperature data and the preset target temperature data to output the deviation result includes:

[0012] Subtracting the real-time temperature data from the preset target temperature data to obtain a deviation value;

[0013] The deviation value is optimized according to a PID control algorithm to output a deviation result.

[0014] In an achievable implementation, the optimizing the deviation value according to the PID control algorithm to output a deviation result includes:

[0015] The deviation value is calculated by a proportional algorithm, a differential algorithm and an integral algorithm respectively to obtain corresponding calculation results;

[0016] The calculation result of the proportional algorithm, the calculation result of the differential algorithm and the calculation result of the integral algorithm are summed to obtain a deviation result.

[0017] In one possible implementation,

[0018] The calculation formula for performing proportional algorithm calculation on the deviation value is:

[0019] F p =k p *Error;

[0020] The calculation formula for performing differential algorithm calculation on the deviation value is:

[0021]

[0022] The calculation formula for performing an integral algorithm calculation on the deviation value is:

[0023] F i =k i *∫Error dt;

[0024] In the formula, k p is the proportionality coefficient, k d is the differential coefficient, k i is the integral coefficient, and Error is the deviation value.

[0025] In an achievable implementation, converting the deviation result into a PWM signal, and controlling the heating temperature of the electromagnetic induction element according to the PWM signal, includes:

[0026] Converting the deviation result into a PWM duty cycle according to a proportionality coefficient;

[0027] Adjusting the output current according to the PWM duty cycle to control the frequency and intensity of the magnetic field of the electromagnetic induction element;

[0028] The heating temperature is controlled according to the changes in the frequency and intensity of the magnetic field of the electromagnetic induction element.

[0029] According to the second aspect, an embodiment provides a temperature control system based on electromagnetic induction, comprising:

[0030] A magnetic field change signal acquisition module is used to acquire a magnetic field change signal of an electromagnetic induction element;

[0031] A trigger module, used for triggering a power-on signal according to the magnetic field change signal, so as to control the electromagnetic induction element to start heating;

[0032] A real-time temperature data acquisition module, used to acquire real-time temperature data inside the electromagnetic induction element;

[0033] A deviation calculation module, used to calculate the temperature deviation according to the real-time temperature data and the preset target temperature data, so as to output the deviation result;

[0034] The temperature control module is used to convert the deviation result into a PWM signal, and control the heating temperature of the electromagnetic induction element according to the PWM signal to reduce the temperature deviation.

[0035] According to a third aspect, an embodiment provides an electromagnetic induction device, including an electromagnetic induction cup, a thermal conductive cup, a temperature sensor, and a controller;

[0036] A heating chamber is provided in the electromagnetic induction cup, and the heating chamber is used to contain and heat the aerosol generating matrix;

[0037] The heat-conducting cup is arranged at the bottom of the electromagnetic induction cup, and is used to transmit the temperature of the heating chamber to the temperature sensor in real time;

[0038] The controller is used to obtain real-time temperature data detected by the temperature sensor, and is also used to:

[0039] Acquiring a magnetic field change signal of the electromagnetic induction cup;

[0040] triggering a power-on signal according to the magnetic field change signal to control the electromagnetic induction cup to start heating;

[0041] Calculating a temperature deviation based on the real-time temperature data and the preset target temperature data to output a deviation result;

[0042] The deviation result is converted into a PWM signal, and the heating temperature of the electromagnetic induction cup is controlled according to the PWM signal to reduce the temperature deviation.

[0043] According to the fourth aspect, an embodiment provides a heating non-combustion device, including an air duct and the electromagnetic induction device as described above; the air duct is arranged on the outside of the electromagnetic induction cup along the height direction and is connected to the bottom of the heating chamber; when cold air enters the bottom of the heating chamber along the air duct, the temperature of the thermal conductive cup changes.

[0044] According to a fifth aspect, an embodiment provides a computer-readable storage medium, on which a computer program is stored, and the computer program can be executed by a processor to implement the method as described above.

[0045] According to the temperature control method / system based on electromagnetic induction of the above embodiment, when an aerosol-generating matrix is ​​inserted into the electromagnetic induction element, the magnetic field of the electromagnetic induction element will change, and the magnetic field change signal is obtained, and the power-on signal is triggered by the magnetic field change signal to control the electromagnetic induction element to start heating; then, the real-time temperature data inside the electromagnetic induction element is obtained, and the temperature deviation is calculated according to the real-time temperature data and the target temperature data to output the deviation result; finally, the deviation result is converted into a PWM signal, and the heating temperature of the electromagnetic induction element is controlled according to the PWM signal to reduce the temperature deviation. By adopting the above method of the present application, the heating-not-burning appliance can achieve precise control of the temperature and can also ensure the consistency of heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A flow chart of a temperature control method based on electromagnetic induction provided in this embodiment;

[0047] Figure 2 A structural block diagram of a temperature control system based on electromagnetic induction provided in this embodiment;

[0048] Figure 3 A schematic cross-sectional structure diagram of a heating without burning device provided in this embodiment.

[0049] Figure numerals: 100, magnetic field change signal acquisition module; 200, trigger module; 300, real-time temperature data acquisition module; 400, deviation calculation module; 500, temperature control module; 10, electromagnetic induction cup; 20, thermal conductive cup; 30, temperature sensor; 40, controller; 50, airway; 60, aerosol generating matrix. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0051] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0052] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0053] refer to Figure 1 , this embodiment provides a temperature control method based on electromagnetic induction, comprising the following steps:

[0054] Step 100: Acquire a magnetic field change signal of an electromagnetic induction element through a magnetic field change signal acquisition module; wherein the magnetic field change signal is generated by inserting an aerosol generating matrix with a metal structure into the electromagnetic induction element.

[0055] Step 200: The trigger module triggers a power-on signal according to the magnetic field change signal to control the electromagnetic induction element to start heating.

[0056] Step 300: The real-time temperature data acquisition module acquires the real-time temperature data inside the electromagnetic induction element.

[0057] Step 400: The deviation calculation module calculates the temperature deviation according to the real-time temperature data and the preset target temperature data to output the deviation result.

[0058] Step 500: The temperature control module converts the deviation result into a PWM signal, and controls the heating temperature of the electromagnetic induction element according to the PWM signal to reduce the temperature deviation.

[0059] In actual application of this embodiment, the user inserts an aerosol generating matrix with a metal structure into the electromagnetic induction element, wherein the aerosol generating matrix can be a TEREA cigarette cartridge, and the electromagnetic induction element can be an electromagnetic induction cup. At this time, the electromagnetic induction cup senses the metal sheet in the TEREA cigarette cartridge, and the magnetic field signal of the electromagnetic induction cup changes. Then, the magnetic field change signal is obtained, and a power-on signal is triggered according to the magnetic field change signal, so that the electromagnetic induction cup of the control device starts to heat up, so that the heating chamber starts to heat up, and the temperature sensor also starts to monitor the temperature in the heating chamber in real time, and transmits the detected real-time temperature data to the temperature control module. When the user uses the device, the air in the heating chamber needs to be exchanged with the outside air. For example, when inhaling, the cold air in the airway moves from top to bottom along the gap between the cigarette cartridge and the electromagnetic induction cup, and after reaching the bottom of the electromagnetic induction cup, it moves horizontally to the middle. When the cold air blows over the thermal cup, the temperature of the thermal cup will drop. Therefore, there is a certain deviation between the actual heating temperature and the target heating temperature during the actual inhalation process of the user, which easily leads to the inability to accurately control the temperature of the heating chamber during the heating of the cigarette cartridge, resulting in poor heating consistency and reduced user experience. Therefore, after obtaining the real-time temperature data, the temperature control module performs closed-loop feedback adjustment on the real-time temperature data. Specifically, the temperature deviation is calculated based on the real-time temperature data and the preset target temperature data to output the deviation result, and then the deviation result is converted into a PWM signal. According to the state of the PWM signal, the power supply of the coil of the electromagnetic induction cup that controls the heating is quickly turned on and off. In this way, the temperature deviation is reduced, and the temperature of the heating chamber is accurately controlled.

[0060] In this embodiment, the principle of electromagnetic heating is: when the power supply system supplies power to the electromagnetic induction coil, the coil will generate an alternating magnetic field. The metal sheets in the cigarette cartridge will generate eddy currents under the action of the alternating magnetic field, and then generate heat energy. This heat energy heats the tobacco, causing it to release smoke for users to inhale without burning.

[0061] Furthermore, the temperature deviation is calculated based on the real-time temperature data and the preset target temperature data to output the deviation result, which specifically includes:

[0062] Subtract the real-time temperature data from the preset target temperature data to obtain a deviation value;

[0063] The deviation value is optimized according to the PID control algorithm to output the deviation result.

[0064] Specifically, the real-time temperature data and the preset target temperature data at the current heating moment are obtained, and the real-time temperature data and the preset target temperature data are subtracted to obtain the temperature deviation value. Then, the temperature deviation value is optimized by adopting the PID control algorithm (i.e., proportional-differential-integral algorithm) to output the final deviation result. Among them, the proportional link plays a major control role, making the feedback amount close to the target value, but it may cause oscillation; the integral link eliminates the steady-state error, but increases the overshoot; the differential link produces a damping effect, suppresses oscillation and overshoot, but reduces the response speed. Therefore, the deviation value is optimized and calculated by the proportional algorithm, differential algorithm and integral algorithm respectively, and the specific calculation steps are as follows.

[0065] The deviation value is calculated by a proportional algorithm, a differential algorithm and an integral algorithm respectively to obtain corresponding calculation results;

[0066] Specifically, the calculation formula for calculating the deviation value using the proportional algorithm is:

[0067] F p =k p *Error;

[0068] The calculation formula for the differential algorithm to calculate the deviation value is:

[0069]

[0070] The calculation formula for the integral algorithm to calculate the deviation value is:

[0071] F i =k i *∫Error dt;

[0072] In the formula, k p is the proportionality coefficient, k d is the differential coefficient, k i is the integral coefficient, and Error is the deviation value. Among them, the proportional coefficient determines the response strength of the system to the current error, the integral coefficient affects the accumulation speed of the error and helps to eliminate the steady-state error, and the differential coefficient reflects the system's prediction and response to the error change trend.

[0073] The calculation results of the proportional algorithm, the differential algorithm and the integral algorithm are summed to obtain the deviation result. In other words, the final deviation result UK = F p +F d +F i .

[0074] Furthermore, the deviation result is converted into a PWM signal, and the heating temperature of the electromagnetic induction element is controlled according to the PWM signal, specifically including:

[0075] The deviation result is converted into a PWM duty cycle according to the scaling factor.

[0076] The output current is adjusted according to the PWM duty cycle to control the frequency and strength of the magnetic field of the electromagnetic induction element.

[0077] The heating temperature is controlled according to the changes in the magnetic field frequency and intensity of the electromagnetic induction element.

[0078] Specifically, the deviation result is converted into a PWM (pulse width modulation) duty cycle (the ratio of pulse width to pulse period) through a proportional coefficient, wherein a mapping relationship is established according to the range of the PID output value and the range of the PWM duty cycle. That is to say, the PID output value is multiplied by a constant (proportional factor) to obtain the corresponding PWM duty cycle. The proportional factor in the present application is determined to be 1 / 4, so the conversion relationship between the deviation result and the PWM duty cycle is: PWM duty cycle value = UK / 4. The power of the electromagnetic induction element is adjusted by the PWM duty cycle, thereby changing the real-time temperature. Specifically, the duty cycle of the PWM signal determines the high level duration of the electromagnetic induction element in each cycle. The larger the duty cycle, the higher the power of the electromagnetic induction element; the smaller the duty cycle, the lower the power of the electromagnetic induction element. Therefore, by adjusting the PWM duty cycle, the power of the electromagnetic induction element can be controlled, thereby achieving temperature regulation. During the heating process, the PID controller dynamically adjusts the PWM duty cycle according to the change of the temperature error value. When the temperature error is large, the PID controller will output a larger PWM duty cycle to heat quickly; when the temperature error is small, the PID controller will output a smaller PWM duty cycle to fine-tune the temperature. This dynamic adjustment process ensures precise temperature control.

[0079] The frequency and strength of the magnetic field of the electromagnetic induction element are closely related to the current passing through it. The larger the current, the stronger the magnetic field generated; the greater the rate of change of the current, the higher the frequency of the magnetic field. Therefore, by adjusting the output current, we can control the frequency and strength of the magnetic field of the electromagnetic induction element. When the drive circuit is turned on, the current begins to flow into the coil of the electromagnetic induction element. The current in the coil affects the size of the magnetic field. By adjusting the duty cycle of the PWM signal, the frequency, direction and size of the current in the coil can be controlled, and then the frequency and strength of the alternating magnetic field can be accurately controlled, thereby accurately controlling the temperature of the heating chamber of the electromagnetic induction cup, achieving a precise temperature curve of the cigarette cartridge, and obtaining an excellent taste.

[0080] refer to Figure 2The present embodiment provides a temperature control system based on electromagnetic induction, comprising a magnetic field change signal acquisition module 100, a trigger module 200, a real-time temperature data acquisition module 300, a deviation calculation module 400, and a temperature control module 500. The magnetic field change signal acquisition module 100 is used to acquire the magnetic field change signal of the electromagnetic induction element; the trigger module 200 is used to trigger the power-on signal according to the magnetic field change signal to control the electromagnetic induction element to start heating; the real-time temperature data acquisition module 300 is used to acquire the real-time temperature data inside the electromagnetic induction element; the deviation calculation module 400 is used to calculate the temperature deviation according to the real-time temperature data and the preset target temperature data to output the deviation result; the temperature control module 500 is used to convert the deviation result into a PWM signal, and control the heating temperature of the electromagnetic induction element according to the PWM signal to reduce the temperature deviation.

[0081] The temperature control system of this embodiment includes a magnetic field change signal acquisition module 100, a trigger module 200, a real-time temperature data acquisition module 300, a deviation calculation module 400 and a temperature control module 500. Specifically, the magnetic field change signal is acquired by the magnetic field change signal acquisition module 100, and then the trigger module 200 triggers a power-on signal according to the magnetic field change signal, so that the electromagnetic induction cup 10 of the controller 40 starts to heat, so that the heating chamber starts to heat up, and the real-time temperature data acquisition module 300 (that is, the temperature sensor 30) also starts to monitor the temperature in the heating chamber in real time, and transmits the detected real-time temperature data to the temperature control module 500. When the user uses the device, the air in the heating chamber needs to be exchanged with the outside air. For example, when inhaling, the cold air in the airway 50 moves from top to bottom along the gap between the cigarette cartridge and the electromagnetic induction cup 10, and after reaching the bottom of the electromagnetic induction cup 10, it moves horizontally to the middle. When the cold air blows through the thermal cup 20, the temperature of the thermal cup 20 will drop. Therefore, there is a certain deviation between the actual heating temperature and the target heating temperature during the actual inhalation process of the user, which easily leads to the inability to accurately control the temperature of the heating chamber during the heating of the cigarette cartridge, which in turn leads to poor heating consistency and reduces the user experience. Therefore, after acquiring the real-time temperature data, the temperature control module 500 performs closed-loop feedback adjustment on the real-time temperature data. Specifically, the deviation calculation module 400 calculates the temperature deviation based on the real-time temperature data and the preset target temperature data to output the deviation result, and then converts the deviation result into a PWM signal. The temperature control module 500 quickly turns on and off the power supply of the coil of the electromagnetic induction cup 10 that controls the heating according to the state of the PWM signal. By adopting the solution of this system, the temperature deviation is reduced, thereby achieving precise control of the temperature of the heating chamber.

[0082] refer to Figure 3The electromagnetic induction device provided in this embodiment includes an electromagnetic induction cup 10, a thermal conductive cup 20, a temperature sensor 30 and a controller 40. Specifically, a heating chamber is provided in the electromagnetic induction cup 10, and the heating chamber is used to accommodate and heat the aerosol generating matrix 60; the thermal conductive cup 20 is provided at the bottom of the electromagnetic induction cup 10, and is used to transmit the temperature of the heating chamber to the temperature sensor 30 in real time; the controller 40 is used to obtain real-time temperature data detected by the temperature sensor 30, and is also used to:

[0083] Obtaining a magnetic field change signal of the electromagnetic induction cup 10;

[0084] A power-on signal is triggered according to the magnetic field change signal to control the electromagnetic induction cup 10 to start heating;

[0085] Calculate the temperature deviation based on the real-time temperature data and the preset target temperature data to output the deviation result;

[0086] The deviation result is converted into a PWM signal, and the heating temperature of the electromagnetic induction cup 10 is controlled according to the PWM signal to reduce the temperature deviation.

[0087] Specifically, a heating chamber is provided in the electromagnetic induction cup 10, and the heating chamber is used to accommodate the TEREA cigarette cartridge, and can heat the TEREA cigarette cartridge under the control of the controller 40; the thermal conductive cup 20 is provided at the bottom of the electromagnetic induction cup 10, and is used to transmit the temperature of the heating chamber to the temperature sensor 30 in real time; the temperature sensor 30 is used to detect the temperature of the heating chamber, and transmit the temperature to the controller 40, so that the controller 40 executes the temperature control method in the above embodiment. In view of the fact that a temperature control method based on electromagnetic induction has been described in detail in the above embodiment, this embodiment will not be described in detail here.

[0088] refer to Figure 3 A heating non-combustion device provided in this embodiment includes an air duct 50 and the electromagnetic induction device of the above embodiment; the air duct 50 is arranged on the outside of the electromagnetic induction cup 10 along the height direction and is connected to the bottom of the heating chamber; when cold air enters the bottom of the heating chamber along the air duct 50, the temperature of the thermal conductive cup 20 changes.

[0089] In actual use, such as Figure 3The direction indicated by the dotted arrow in the figure is the flow direction of the airflow in the airway 50. The cold air in the airway 50 moves from top to bottom along the gap between the cigarette cartridge and the electromagnetic induction cup 10. After reaching the bottom of the electromagnetic induction cup 10, it moves horizontally to the middle. When the cold air blows through the thermal cup 20, the temperature of the thermal cup 20 will drop. Therefore, there is a certain deviation between the actual heating temperature and the target heating temperature during the actual inhalation process of the user. This easily leads to the inability to accurately control the temperature of the heating chamber during the heating of the cigarette cartridge, which leads to poor heating consistency and reduces the user's experience. Therefore, this problem can be effectively solved by adopting the heating-not-burning device of the present application. In view of the fact that the heating method and principle of the electromagnetic induction device have been described in detail in the above embodiments, this embodiment will not be elaborated in detail here.

[0090] This embodiment provides a computer readable storage medium, on which a computer program is stored, and the computer program can be executed by a processor to implement the above method. In view of the fact that a temperature control method based on electromagnetic induction has been described in detail in the above embodiment, this embodiment will not be described in detail here.

[0091] Those skilled in the art will appreciate that all or part of the functions of the various methods in the above-mentioned embodiments can be implemented by hardware or by computer programs. When all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, disk, optical disk, hard disk, etc., and the program is executed by a computer to implement the above-mentioned functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above-mentioned functions can be implemented. In addition, when all or part of the functions in the above-mentioned embodiments are implemented by computer programs, the program can also be stored in a storage medium such as a server, another computer, disk, optical disk, flash disk or mobile hard disk, and can be downloaded or copied and saved in the memory of the local device, or the system of the local device is updated, and when the program in the memory is executed by the processor, all or part of the functions in the above-mentioned embodiments can be implemented.

[0092] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. A temperature control method based on electromagnetic induction, characterized in that: include: Acquire a magnetic field change signal of an electromagnetic induction element; triggering a power-on signal according to the magnetic field change signal to control the electromagnetic induction element to start heating; Acquiring real-time temperature data inside the electromagnetic induction element; Calculating a temperature deviation based on the real-time temperature data and the preset target temperature data to output a deviation result; The deviation result is converted into a PWM signal, and the heating temperature of the electromagnetic induction element is controlled according to the PWM signal to reduce the temperature deviation.

2. The temperature control method according to claim 1, characterized in that: The magnetic field change signal is generated by inserting an aerosol generating substrate with a metal structure into the electromagnetic induction element.

3. The temperature control method according to claim 1, characterized in that: The calculating the temperature deviation according to the real-time temperature data and the preset target temperature data to output the deviation result includes: Subtracting the real-time temperature data from the preset target temperature data to obtain a deviation value; The deviation value is optimized according to a PID control algorithm to output a deviation result.

4. The temperature control method according to claim 3, characterized in that: The step of optimizing the deviation value according to the PID control algorithm to output a deviation result includes: The deviation value is calculated by a proportional algorithm, a differential algorithm and an integral algorithm respectively to obtain corresponding calculation results; The calculation result of the proportional algorithm, the calculation result of the differential algorithm and the calculation result of the integral algorithm are summed to obtain a deviation result.

5. The temperature control method according to claim 4, characterized in that: The calculation formula for performing proportional algorithm calculation on the deviation value is: F p =k p *Error; The calculation formula for performing differential algorithm calculation on the deviation value is: The calculation formula for performing an integral algorithm calculation on the deviation value is: F i =k i *∫Error dt; In the formula, k p is the proportionality coefficient, k d is the differential coefficient, k i is the integral coefficient, and Error is the deviation value.

6. The temperature control method according to claim 1, characterized in that: The step of converting the deviation result into a PWM signal and controlling the heating temperature of the electromagnetic induction element according to the PWM signal comprises: Converting the deviation result into a PWM duty cycle according to a proportionality coefficient; Adjusting the output current according to the PWM duty cycle to control the frequency and intensity of the magnetic field of the electromagnetic induction element; The heating temperature is controlled according to the changes in the frequency and intensity of the magnetic field of the electromagnetic induction element.

7. A temperature control system based on electromagnetic induction, characterized in that: include: A magnetic field change signal acquisition module is used to acquire the magnetic field change signal of the electromagnetic induction element; A trigger module, used for triggering a power-on signal according to the magnetic field change signal, so as to control the electromagnetic induction element to start heating; A real-time temperature data acquisition module, used to acquire real-time temperature data inside the electromagnetic induction element; A deviation calculation module, used to calculate the temperature deviation according to the real-time temperature data and the preset target temperature data, so as to output the deviation result; The temperature control module is used to convert the deviation result into a PWM signal, and control the heating temperature of the electromagnetic induction element according to the PWM signal to reduce the temperature deviation.

8. An electromagnetic induction device, characterized in that: Including electromagnetic induction cup, thermal conductive cup, temperature sensor and controller; A heating chamber is provided in the electromagnetic induction cup, and the heating chamber is used to contain and heat the aerosol generating matrix; The heat-conducting cup is arranged at the bottom of the electromagnetic induction cup, and is used to transmit the temperature of the heating chamber to the temperature sensor in real time; The controller is used to obtain real-time temperature data detected by the temperature sensor, and is also used to: Acquiring a magnetic field change signal of the electromagnetic induction cup; triggering a power-on signal according to the magnetic field change signal to control the electromagnetic induction cup to start heating; Calculating a temperature deviation based on the real-time temperature data and the preset target temperature data to output a deviation result; The deviation result is converted into a PWM signal, and the heating temperature of the electromagnetic induction cup is controlled according to the PWM signal to reduce the temperature deviation.

9. A heating without burning device, characterized in that: It comprises an air duct and the electromagnetic induction device as claimed in claim 8; the air duct is arranged on the outside of the electromagnetic induction cup along the height direction and is connected with the bottom of the heating chamber; when cold air enters the bottom of the heating chamber along the air duct, the temperature of the thermal cup changes.

10. A computer-readable storage medium, characterized in that: A computer program is stored on the medium, and the computer program can be executed by a processor to implement the method according to any one of claims 1 to 6.

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