Heat-not-burn device, heating control method thereof, program product, and storage medium

Abstract

A heat-not-burn device, its heating control method, a program product, and a storage medium. The heating control method includes: when heating a tobacco medium using a microwave method, detecting the frequency of a microwave signal in real time, and determining an initial time point corresponding to when the tobacco medium reaches a specific temperature according to the frequency detected in real time (step S10); determining the required energy of the tobacco medium from the initial time point according to the specific temperature and a preset target temperature (step S20); and controlling the output power and / or output time of a microwave source unit so that the temperature of the tobacco medium reaches the target temperature according to the required energy (step S30).

Description

Technical Field

[0001] The present invention relates to the technical field of atomization devices, and particularly to a heat-not-burning device, its heating control method, a program product, and a storage medium.

Background Art

[0002] HNB (Heat Not Burning) appliances can heat tobacco media using microwaves. In order to achieve accurate temperature measurement, protrusions are often formed on the appliances, and temperature measurement devices such as thermistors are provided on the protrusions. When the HNB appliance operates, when a tobacco medium is inserted by the user, the protrusion is inserted into the tobacco medium accordingly, thereby realizing the temperature measurement of the tobacco medium. However, in the conventional mode, since the protrusion is contaminated during the heating process of the tobacco medium, it is necessary to clean it regularly, which causes inconvenience to the user experience. Moreover, if the user applies excessive force during cleaning, the protrusion may be damaged.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The problem to be solved by the present invention lies in the defect in the prior art that it is necessary to regularly clean the protrusion.

Means for Solving the Problems

[0004] The technical solution used by the present invention to solve its problems is a heating control method for a heat-not-burning device, comprising: When heating a tobacco medium using a microwave heating method, detecting the frequency of the microwave signal in real time, and determining an initial time point corresponding to when the tobacco medium reaches a specific temperature according to the frequency detected in real time; Determining the required energy of the tobacco medium from the initial time point according to the specific temperature and a preset target temperature; Constructing a heating control method for a heat-not-burn device, including controlling the output power and / or output time of the microwave source unit according to the required energy so that the temperature of the tobacco medium reaches the target temperature.

[0005] Preferably, during the process of the temperature of the tobacco medium reaching the target temperature, calculating the output energy of the microwave source unit from the initial time point to the current time point according to the real-time output power and output time of the microwave source unit; Determining the current temperature of the tobacco medium according to the output energy and the specific temperature; Judging whether the calculated current temperature matches the set temperature at the current time point in a preset temperature curve; If they do not match, further including adjusting the output power and / or output time of the microwave source unit.

[0006] Preferably, determining the current temperature of the tobacco medium includes: Determining the current temperature of the tobacco medium by using a calculation method based on a formula, or Determining the current temperature of the tobacco medium by using a table lookup method.

[0007] Preferably, if they do not match, adjusting the output power and / or output time of the microwave source unit includes: Comparing the calculated current temperature with the set temperature at the current time point in a preset temperature curve; If the calculated current temperature is higher than the set temperature, controlling the microwave source unit to reduce the output power and / or decrease the output time; If the calculated current temperature is lower than the set temperature, controlling the microwave source unit to increase the output power.

[0008] Preferably, determining an initial time point corresponding to when the tobacco medium reaches a specific temperature according to the frequency detected in real time includes: determining a break point frequency according to the frequency detected in real time, and using the time point corresponding to the break point frequency as the initial time point; and determining the temperature of the tobacco medium at the initial time point as the specific temperature.

[0009] Preferably, determining a break point frequency according to the frequency detected in real time includes: including using the maximum frequency among the frequencies detected in real time as the break point frequency.

[0010] The present invention further constructs a program product including a processor, and when the stored computer program is executed by the processor, the steps of the heating control method of the heat-not-burn device described above are realized.

[0011] The present invention further constructs a storage medium storing a computer program, and when the computer program is executed by a processor, the steps of the heating control method of the heat-not-burn device described above are realized.

[0012] The present invention is a heat-not-burn device including a microwave source unit and a tobacco medium, when heating the tobacco medium using a microwave heating method, a first determination module for detecting the frequency of the microwave signal in real time and determining an initial time point corresponding to when the tobacco medium reaches a specific temperature according to the frequency detected in real time; a second determination module for determining the required energy of the tobacco medium from the initial time point according to the specific temperature and a preset target temperature; and further includes a control module for controlling the output power and / or output time of the microwave source unit so that the temperature of the tobacco medium reaches the target temperature according to the required energy.

[0013] Preferably, during the process in which the temperature of the tobacco medium reaches the target temperature, a calculation module for calculating the output energy of the microwave source unit from the initial time point to the current time point according to the real-time output power and output time of the microwave source unit, a third determination module for determining the current temperature of the tobacco medium according to the output energy and the specific temperature, a determination module for determining whether the calculated current temperature matches the set temperature at the current time in a preset temperature curve, and further includes an adjustment module for adjusting the output power and / or output time of the microwave source unit when they do not match.

[0014] Preferably, it further includes a circulator, a radiation unit, a forward coupler, a reverse coupler, a forward detection unit, and a reverse detection unit. Among them, the output end of the microwave source unit is connected to the first end of the circulator, the second end of the circulator is connected to the radiation unit, and the tobacco medium is located within the radiation range of the radiation unit. The first ends of the forward coupler and the reverse coupler are respectively connected to the third end of the circulator. The second end of the forward coupler is connected to the input end of the forward detection unit, the second end of the reverse coupler is connected to the input end of the reverse detection unit, and the output ends of the forward detection unit and the reverse detection unit are respectively connected to the first determination module.

Advantages of the Invention

[0015] When implementing the technical aspect of the present invention, according to the frequency detected in real time, it is possible to determine the initial time point corresponding to when the tobacco medium reaches a specific temperature, that is, since the temperature (specific temperature) of the tobacco medium at the initial time point can be detected, when measuring the temperature of the tobacco medium, there is no need to attach a temperature measurement device such as a thermistor to the heat-not-burn device. As a result, there is no need to provide a protrusion on the heat-not-burn device for accommodating the temperature measurement device. For the user, the operation of periodically cleaning the protrusion can be omitted, the user experience is improved, and damage to the protrusion due to cleaning can be avoided.

Brief Description of the Drawings

[0016] Hereinafter, the present invention will be further described with reference to the drawings and examples.

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0017] Hereinafter, while referring to the drawings in the embodiments of the present invention, the technical aspects in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are some of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative labor shall all fall within the protection scope of the present invention.

[0018] FIG. 1 is a flowchart of the first embodiment of the heating control method of the heat-not-burn device according to the present invention, and the heating control method of this embodiment includes the following steps S10 to S30: Step S10 is to detect the frequency of the microwave signal in real time when heating the tobacco medium using the microwave heating method, and determine the initial time point corresponding to when the tobacco medium reaches a specific temperature according to the frequency detected in real time. Step S20 is to determine the required energy of the tobacco medium from the initial time point according to the specific temperature and a preset target temperature (for example, 225°C). Step S30 is to control the output power and / or output time of the microwave source unit so that the temperature of the tobacco medium reaches the target temperature according to the required energy.

[0019] Regarding this embodiment, it should be noted that in an environment where the tobacco medium is heated by microwaves, as the temperature of the tobacco medium rises (for example, from room temperature), a change in the dielectric constant of the tobacco medium is caused. The real part of the dielectric constant is the true dielectric constant, which further affects the wavelength of the electromagnetic wave. Also, since the wavelength of the electromagnetic wave is inversely proportional to the frequency, the change in the real part of the dielectric constant affects the change in the frequency of the microwave signal. For a certain heat-not-burn device, the tobacco medium installed in it is determined and has a unique specific temperature. Since the specific temperature corresponds to the frequency of a unique microwave signal, by detecting the frequency of the microwave signal in real time, the time point (initial time point) when the tobacco medium reaches the specific temperature can be determined. Once the specific temperature of the tobacco medium is determined, together with the target temperature, the energy (required energy) that needs to be supplied to the tobacco medium from the initial time point can be determined. Finally, according to the required energy, the output power and / or output time of the microwave source unit can be controlled so that the temperature of the tobacco medium reaches the target temperature.

[0020] In this embodiment, according to the frequency detected in real time, the initial time point corresponding to when the tobacco medium reaches a specific temperature can be determined, that is, since the temperature (specific temperature) of the tobacco medium at the initial time point can be detected, when measuring the temperature of the tobacco medium, there is no need to attach a temperature measurement device such as a thermistor to the heat-not-burn device. As a result, there is no need to provide a protrusion for accommodating the temperature measurement device on the heat-not-burn device. For the user, the operation of regularly cleaning the protrusion can be omitted, the user experience is improved, and damage to the protrusion caused by cleaning can be avoided.

[0021] Furthermore, in one alternative embodiment, the heating control method according to the present invention During the process of the temperature of the tobacco medium reaching the target temperature, calculate the output energy of the microwave source unit from the initial time point to the current time point according to the real-time output power and output time of the microwave source unit; Determine the current temperature of the tobacco medium according to the output energy and the specific temperature; Judge whether the calculated current temperature matches the set temperature at the current time point in a preset temperature curve; If they do not match, further include adjusting the output power and / or output time of the microwave source unit.

[0022] In this embodiment, during the process of the tobacco medium reaching the target temperature from the initial time point (the time point when the tobacco medium reaches a specific temperature), it is also possible to inversely estimate the current temperature of the tobacco medium regularly or irregularly according to the energy already output (output energy). Specifically, since the output power and output time during the period from the initial time point to the current time point are determined, it is possible to calculate the output energy already output according to the output power and output time. Also, since the output energy is related to the temperature difference during the period from the initial time point to the current time point, it is possible to calculate the current temperature according to the output energy and the specific temperature. Then, compare the calculated temperature with the set temperature at the corresponding time point on the temperature curve. If the two do not match, adjust the output of the microwave source unit to make the actually estimated temperature of the tobacco medium coincide with the temperature curve, so as to ensure the taste of smoking and the quality of the aerosol. Moreover, this embodiment can realize the temperature measurement of the tobacco medium by a software-based calculation method. According to tests, its accuracy is high. As shown in FIG. 2, curve L1 is the temperature curve calculated using the temperature measurement method of this embodiment, and curve L2 is the actually measured temperature curve.

[0023] Furthermore, it is possible to determine the current temperature of the tobacco medium by using the following Method 1 or Method 2. Method 1 is a calculation method based on an equation, and Method 2 is a table lookup method. In this embodiment, it is possible to pre-store the relational equation between energy and temperature, or the relational table between energy and temperature difference (the difference between the current temperature and the specific temperature). When the energy already output is calculated, it is possible to calculate the current temperature with the relational equation between energy and temperature, or obtain the current temperature by looking up the relational table between energy and temperature difference.

[0024] Furthermore, when they do not match, adjusting the output power and / or output time of the microwave source unit specifically means comparing the calculated current temperature with the set temperature at the current time point on the pre-set temperature curve, If the calculated current temperature is greater than the set temperature, control the microwave source unit to reduce the output power and / or reduce the output time. If the calculated current temperature is less than the set temperature, it may include controlling the microwave source unit to increase the output power.

[0025] In this embodiment, after comparing the calculated current temperature with the set temperature at the current time in the preset temperature curve, the following three comparison results may appear. Result 1 is that the calculated temperature is greater than the set temperature, which means that the actual temperature of the tobacco medium is too high. At this time, it is possible to reduce the output power of the microwave source unit and / or reduce the output time. Result 2 is that the calculated temperature is less than the set temperature, which means that the actual temperature of the tobacco medium is too low. At this time, it is possible to increase the output power of the microwave source unit. Result 3 is that the calculated temperature is equal to the set temperature, which means that the actual temperature of the tobacco medium is just appropriate, and there is no need to adjust the output power and / or output time.

[0026] Furthermore, in one alternative embodiment, in step S10, determining the initial time point corresponding to when the tobacco medium reaches a specific temperature according to the frequency detected in real time is determining the break point frequency according to the frequency detected in real time and using the time point corresponding to the break point frequency as the initial time point, and determining the temperature at the initial time point of the tobacco medium as the specific temperature.

[0027] Furthermore, among the frequencies detected in real time, if the maximum frequency is used as the break point frequency, it is possible to determine the break point frequency. What should be explained here is that after frequency tracking detection, the detected multiple frequencies can be sorted, and the maximum value among them can be found. The maximum value will be the break point frequency. Also, the detected multiple frequencies can be made into a frequency curve in chronological order. It is obvious that the frequency curve will be a downward-opening parabola, and the maximum value of the parabola will be the break point frequency.

[0028] In this embodiment, in an environment where the tobacco medium is heated by microwaves, as shown in Table 1, as the temperature of the tobacco medium rises, the real part of the dielectric constant of the tobacco medium gradually increases and then gradually decreases. Also, since the real part of the dielectric constant affects the wavelength of the electromagnetic wave and the wavelength of the electromagnetic wave is inversely proportional to the frequency, the change in the real part of the dielectric constant affects the change in the frequency of the microwave signal, and the break point of the frequency corresponds to the break point of the change in the real part of the dielectric constant of the tobacco medium, that is, 3.85. Furthermore, it is determined that the temperature (specific temperature) corresponding to the break point of the change in the real part of the dielectric constant is 100°C. As a result, it becomes possible to determine the temperature at the time when the break point of the frequency appears as the specific temperature.

[0029] JPEG2025521988000002.jpg81170

[0030] FIG. 3 is a logical structure diagram of a first embodiment of a heat-not-burn device according to the present invention. The heat-not-burn device of this embodiment includes a main control unit 10, a microwave source unit 20, and a tobacco medium 30. Among them, the microwave source unit 20 may include a microwave signal source for generating a microwave signal and a power amplifier for power-amplifying the generated microwave signal. The tobacco medium 30 is housed in a heating cavity, and the heating cavity may be located within the radiation range of the microwave signal. The main control unit 10 includes a first determination module 11, a second determination module 12, and a control module 13. Moreover, when the first determination module 11 heats the tobacco medium 30 using the microwave heating method, it detects the frequency of the microwave signal in real time and determines the initial time point corresponding to when the tobacco medium 30 reaches a specific temperature according to the frequency detected in real time. The second determination module 12 is for determining the required energy of the tobacco medium 30 from the initial time point according to the specific temperature and a preset target temperature. The control module 13 is for controlling the output power and / or output time of the microwave source unit 20 so that the temperature of the tobacco medium 30 reaches the target temperature according to the required energy.

[0031] Furthermore, the main control unit 10 may further include a calculation module, a third determination module, a judgment module, and an adjustment module. Moreover, the calculation module is for calculating the output energy of the microwave source unit from the initial time point to the current time point according to the real-time output power and output time of the microwave source unit during the process in which the temperature of the tobacco medium reaches the target temperature. The third determination module is for determining the current temperature of the tobacco medium according to the output energy and the specific temperature. The judgment module is for judging whether the calculated current temperature matches the set temperature at the current time point in a preset temperature curve. The adjustment module is for adjusting the output power and / or output time of the microwave source unit when they do not match.

[0032] It should be understood that for the first determination module 11, the second determination module 12, the control module 13, the calculation module, the third determination module, the judgment module and the adjustment module, these modules may be integrated into the main control unit 10 for realization, or may be realized by a plurality of independent modules.

[0033] FIG. 4 is a logical structure diagram of the second embodiment of the heat non-combustion device according to the present invention. The heat non-combustion device of this embodiment includes a main control unit 10, a microwave source unit 20, and a tobacco medium, and further includes a circulator 40, a radiation unit 50, a forward coupler 61, a reverse coupler 62, a forward detection unit 71, and a reverse detection unit 72. Among them, the output end of the microwave source unit 20 is connected to the first end of the circulator 40, the second end of the circulator 40 is connected to the radiation unit 50, and the tobacco medium is located within the radiation range of the radiation unit 50. The first ends of the forward coupler 61 and the reverse coupler 62 are respectively connected to the third end of the circulator 40. The second end of the forward coupler 61 is connected to the input end of the forward detection unit 71, and the second end of the reverse coupler 62 is connected to the input end of the reverse detection unit 72. The output ends of the forward detection unit 71 and the reverse detection unit 72 are respectively connected to the first determination module in the main control unit 10. In addition, the control module in the main control unit 10 is connected to the input end of the microwave source unit 20.

[0034] In this embodiment, a corresponding microwave signal is output from the microwave source unit 20 under the control of the main control unit 10. The microwave signal is transmitted to the radiation unit 50 after passing through the circulator 40, and the microwave signal is radiated from the radiation unit 50. Since the tobacco medium in the heating cavity is located within the radiation range of the radiation unit 50, it can generate heat. At the same time, the change in the real part of the dielectric constant of the tobacco medium is caused by the temperature of the tobacco medium, and further affects the change in the frequency of the microwave signal. During frequency tracking detection, the forward detection unit 71 and the reverse detection unit 72 respectively collect the voltage of the microwave signal through the corresponding forward coupler 61 and reverse coupler 62, and send it to the first determination module in the main control unit 10. The first determination module can determine the frequency of the microwave signal by analyzing the collected voltage of the microwave signal. Then, the break-point frequency is determined. Further, taking the time point when the break-point frequency appears as the initial time point, the temperature at the initial time point is a specific temperature (when the tobacco medium is determined, the corresponding specific temperature is also determined).

[0035] The present invention further constructs a program product including a processor. When the stored computer program is executed by the processor, the steps of the heating control method of the heat-not-burn device described above are realized.

[0036] It should be understood that in the embodiments of the present application, the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gates, or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or any conventional processor, etc.

[0037] Furthermore, when a computer program is executed by the processor, it is possible to implement the steps of the heating control method of any one of the heating non-combustion devices according to the embodiments of the present invention. Therefore, it is possible to realize the beneficial effects achievable by the implementation of the heating control method of any one of the heating non-combustion devices according to the embodiments of the present invention. For the details, reference may be made to the foregoing embodiments, and they will not be repeated here.

[0038] The present invention further provides a storage medium storing a computer program, wherein when the computer program is executed by a processor, the steps of the heating control method of the heating non-combustion device described above are realized.

[0039] It should be understood that the storage medium may include various computer storage media capable of storing program codes, such as USB flash drives, portable hard disks, read-only memories (ROMs), magnetic disks, or optical disks. Further, when the computer program stored in the storage medium is executed, the steps of the heating control method of any one of the heating non-combustion devices according to the embodiments of the present invention can be realized, so that the beneficial effects achievable by the realization of the heating control method of any one of the heating non-combustion devices according to the embodiments of the present invention can be realized. However, for the details, reference may be made to the above-described embodiments, and they will not be repeated here.

[0040] What has been described above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can be variously modified and deformed. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall all be included within the scope of the claims of the present invention.

Claims

1. A heating control method for a heat-not-burn device, comprising: when heating a tobacco medium using a microwave heating method, detecting the frequency of a microwave signal in real time, and determining an initial time point corresponding to when the tobacco medium reaches a specific temperature according to the frequency detected in real time; determining the required energy of the tobacco medium from the initial time point according to the specific temperature and a preset target temperature; controlling the output power and / or output time of a microwave source unit so that the temperature of the tobacco medium reaches the target temperature according to the required energy. A heating control method for a heat-not-burn device, characterized by the above.

2. During the process of the temperature of the tobacco medium reaching the target temperature, calculating the output energy of the microwave source unit from the initial time point to the current time point according to the real-time output power and output time of the microwave source unit; determining the current temperature of the tobacco medium according to the output energy and the specific temperature; judging whether the calculated current temperature matches the set temperature at the current time in a preset temperature curve; if not, further comprising adjusting the output power and / or output time of the microwave source unit. A heating control method for a heat-not-burn device according to Claim 1, characterized by the above.

3. Determining the current temperature of the tobacco medium includes: determining the current temperature of the tobacco medium using a calculation method according to a formula, or determining the current temperature of the tobacco medium using a table lookup method. A heating control method for a heat-not-burn device according to Claim 2, characterized by the above.

4. If not matching, adjusting the output power and / or output time of the microwave source unit includes: comparing the calculated current temperature with the set temperature at the current time in a preset temperature curve; if the calculated current temperature is higher than the set temperature, controlling the microwave source unit to reduce the output power and / or reduce the output time; if the calculated current temperature is lower than the set temperature, controlling the microwave source unit to increase the output power. A heating control method for a heat-not-burn device according to Claim 2, characterized by the above.

5. Determining an initial time point corresponding to when the tobacco medium reaches a specific temperature according to the frequency detected in real time is determining a break point frequency according to the frequency detected in real time, and using the time point corresponding to the break point frequency as the initial time point, and determining the temperature of the tobacco medium at the initial time point as the specific temperature, and the heating control method of the heat-not-burn device according to claim 1, characterized in that it comprises the above.

6. Determining a break point frequency according to the frequency detected in real time is including setting the maximum frequency among the frequencies detected in real time as the break point frequency, and the heating control method of the heat-not-burn device according to claim 5, characterized in that it comprises the above.

7. A program product including a processor, wherein when the stored computer program is executed by the processor, the steps of the heating control method of the heat-not-burn device according to any one of claims 1 to 6 are realized, and the program product is characterized in that it comprises the above.

8. A storage medium storing a computer program, wherein when the computer program is executed by a processor, the steps of the heating control method of the heat-not-burn device according to any one of claims 1 to 6 are realized, and the storage medium is characterized in that it comprises the above.

9. A heat-not-burn device including a microwave source unit and a tobacco medium, when heating the tobacco medium using a microwave heating method, a first determination module for detecting the frequency of the microwave signal in real time and determining an initial time point corresponding to when the tobacco medium reaches a specific temperature according to the frequency detected in real time, a second determination module for determining the required energy of the tobacco medium from the initial time point according to the specific temperature and a preset target temperature, and further comprising a control module for controlling the output power and / or output time of the microwave source unit so that the temperature of the tobacco medium reaches the target temperature according to the required energy, and the heat-not-burn device is characterized in that it comprises the above.

10. During the process of the temperature of the tobacco medium reaching the target temperature, a calculation module for calculating the output energy of the microwave source unit from the initial time point to the current time point according to the real-time output power and output time of the microwave source unit A third determination module for determining the current temperature of the tobacco medium according to the output energy and the specific temperature; A determination module for determining whether the calculated current temperature matches the set temperature at the current time in a preset temperature curve; When they do not match, it further includes an adjustment module for adjusting the output power and / or output time of the microwave source unit. The heat-not-burn device according to claim 9, characterized in that.

11. It further includes a circulator, a radiation unit, a forward coupler, a reverse coupler, a forward detection unit, and a reverse detection unit. Among them, the output end of the microwave source unit is connected to the first end of the circulator, the second end of the circulator is connected to the radiation unit, and the tobacco medium is located within the radiation range of the radiation unit. The first ends of the forward coupler and the reverse coupler are respectively connected to the third end of the circulator. The second end of the forward coupler is connected to the input end of the forward detection unit, the second end of the reverse coupler is connected to the input end of the reverse detection unit, and the output ends of the forward detection unit and the reverse detection unit are respectively connected to the first determination module. The heat-not-burn device according to claim 9, characterized in that.

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