Non-combustible heating device and its heating control method, program product, 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 formed on the appliances, and temperature measurement devices such as thermistors are often provided on the protrusions. When the HNB appliance operates, when a tobacco medium is inserted by the user, the corresponding protrusion is inserted into the tobacco medium accordingly, thereby realizing the temperature measurement of the tobacco medium. However, in the conventional mode, contamination of the protrusion is caused during the heating process of the tobacco medium, so 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 that it is necessary to regularly clean the protrusion existing in the prior art.

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; The objective is to construct a heating control method for a heating non-combustion device, which includes 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.

[0005] Preferably, during the process in which the temperature of the tobacco medium reaches the target temperature, the output energy of the microwave source unit from the initial time to the present time is calculated according to the real-time output power and output time of the microwave source unit. The current temperature of the tobacco medium is determined according to the output energy and the specified temperature. To determine whether the calculated current temperature matches the current set temperature in a pre-set temperature curve, If they do not match, the further includes adjusting the output power and / or output time of the microwave source unit.

[0006] Preferably, determining the current temperature of the tobacco medium is To determine the current temperature of the tobacco medium using a calculation method based on a formula, or, This includes determining the current temperature of the tobacco medium using a table lookup method.

[0007] Preferably, if they do not match, the output power and / or output time of the microwave source unit may be adjusted. This involves comparing the calculated current temperature with the current set temperature in a pre-defined temperature curve, If the calculated current temperature is greater than the set temperature, the microwave source unit is controlled to reduce the output power and / or the output time. If the calculated current temperature is lower than the set temperature, the microwave source unit is controlled to increase the output power.

[0008] Preferably, determining the initial time point corresponding to when the tobacco medium reaches a specific temperature, according to the frequency detected in real time, The breakpoint frequency is determined according to the frequency detected in real time, and the time point corresponding to the breakpoint frequency is set as the initial time point. This includes determining the initial temperature of the tobacco medium as the specific temperature.

[0009] Preferably, determining the breakpoint frequency according to the frequency detected in real time is This includes setting the highest frequency among those detected in real time as the breakpoint frequency.

[0010] The present invention further constructs a program product including a processor, wherein when a stored computer program is executed by the processor, the steps of the heating control method for the heating non-combustion device described above are realized.

[0011] The present invention further constructs a storage medium that stores a computer program, wherein when the computer program is executed by a processor, the steps of the heating control method for the heating non-combustion device described above are realized.

[0012] The present invention relates to a heating non-combustion device comprising a microwave source unit and a tobacco medium, A first determination module for detecting the frequency of the microwave signal in real time when heating tobacco media using a microwave heating method, and for determining the initial time point corresponding to when the tobacco media reaches a specific temperature according to the frequency detected in real time, A second determination module for determining the energy required for the tobacco medium from the initial point in time, according to the specified temperature and a preset target temperature, A heating non-combustion device is further constructed, further including 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, a calculation module for calculating the output energy of the microwave source unit from the initial time to the present time, 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. A third determination module for determining the current temperature of the tobacco medium according to the output energy and the specified temperature, A judgment module for determining whether the calculated current temperature matches the current set temperature in a pre-set temperature curve, If they do not match, the system further includes an adjustment module for adjusting the output power and / or output time of the microwave source unit.

[0014] Preferably, the microwave source unit further includes a circulator, a radiation unit, a forward coupler, a reverse coupler, a forward detection unit, and a reverse detection unit, wherein the output terminal of the microwave source unit is connected to the first terminal of the circulator, the second terminal 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 terminals of the forward coupler and the reverse coupler are each connected to the third terminal of the circulator; the second terminal of the forward coupler is connected to the input terminal of the forward detection unit; the second terminal of the reverse coupler is connected to the input terminal of the reverse detection unit; and the output terminals of the forward detection unit and the reverse detection unit are each connected to the first determinant module. [Effects of the Invention]

[0015] When the technical aspect of the present invention is implemented, 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, it is possible to detect the temperature (specific temperature) of the tobacco medium at the initial time point. Therefore, 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, and thus 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 periodically cleaning the protrusion can be omitted, the user experience is improved, and damage to the protrusion caused by cleaning can be avoided.

Brief Description of Drawings

[0016] Hereinafter, the present invention will be further described with reference to the drawings and embodiments. [Figure 1] 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. [Figure 2] FIG. 2 is a schematic diagram of the calculated temperature curve and the measured temperature curve. [Figure 3] FIG. 3 is a logical structure diagram of the first embodiment of the heat-not-burn device according to the present invention. [Figure 4] FIG. 4 is a logical structure diagram of the second embodiment of the heat-not-burn device according to the present invention.

Embodiments for Implementing 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 clearly and completely described. Obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative labor shall 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 involves detecting the frequency of the microwave signal in real time when heating the tobacco medium using a microwave heating method, and determining 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 point in time according to the specific temperature and a preset target temperature (e.g., 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] In this embodiment, it should be explained that in an environment where tobacco media is heated by microwaves, as the temperature of the tobacco media rises (for example, from room temperature), a change in the dielectric constant of the tobacco media occurs. The real part of the dielectric constant is the true dielectric constant, and this further affects the wavelength of the electromagnetic wave. Also, because the wavelength of electromagnetic waves 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 heating non-combustion device, the tobacco media to be attached to it is predetermined and has a unique specific temperature, and this specific temperature corresponds to a unique microwave signal frequency. Therefore, by detecting the frequency of the microwave signal in real time, it is possible to determine the point in time (initial point) when the tobacco media reaches the specific temperature. Once the specific temperature of the tobacco media is determined, together with the target temperature, it becomes possible to determine the energy that needs to be supplied to the tobacco media from the initial point (required energy). Finally, according to the required energy, it becomes possible to control the output power and / or output time of the microwave source unit so that the temperature of the tobacco media reaches the target temperature.

[0020] In this embodiment, the initial point in time corresponding to when the tobacco medium reaches a specific temperature can be determined according to the frequency detected in real time, that is, the temperature of the tobacco medium at that initial point in time (specific temperature) can be detected. Therefore, when measuring the temperature of the tobacco medium, it is not necessary to attach a temperature measuring device such as a thermistor to the heating non-combustion device, and it is not necessary to provide a protrusion on the heating non-combustion device to house the temperature measuring device. For the user, this eliminates the need to periodically clean the protrusion, improving the user experience and avoiding damage to the protrusion due to cleaning.

[0021] Furthermore, in one selective embodiment, the heating control method according to the present invention is During the process in which the temperature of the tobacco medium reaches the target temperature, the output energy of the microwave source unit from the initial time to the present time is calculated according to the real-time output power and output time of the microwave source unit. The current temperature of the tobacco medium is determined according to the output energy and the specified temperature. To determine whether the calculated current temperature matches the current set temperature in a pre-set temperature curve, If they do not match, the further includes adjusting the output power and / or output time of the microwave source unit.

[0022] In this embodiment, it is possible to periodically or irregularly estimate the current temperature of the tobacco medium in reverse, according to the energy already output (output energy) during the process of the tobacco medium reaching the target temperature from the initial point (the point in time when the tobacco medium reaches a specific temperature). Specifically, since the output power and output time for the period from the initial point to the current point are determined, the output energy already output can be calculated according to said output power and output time. Furthermore, since the output energy is related to the temperature difference for the period from the initial point to the current point, the current temperature can be calculated according to the output energy and the specific temperature. Subsequently, by comparing the calculated temperature with the set temperature at the corresponding point in the temperature curve, and if the two do not match, the output of the microwave source unit can be adjusted to make the actual estimated temperature of the tobacco medium match the temperature curve, thereby ensuring the taste of the smoke and the quality of the aerosol. Moreover, this embodiment enables temperature measurement of the tobacco medium using a software estimation method, and tests have shown that its accuracy is high. As shown in Figure 2, curve L1 is the temperature curve calculated using the temperature measurement method of this embodiment, and curve L2 is the measured temperature curve.

[0023] Furthermore, the current temperature of the tobacco medium can be determined using the following methods 1 and 2. Method 1 is a calculation method using an equation, and Method 2 is a table lookup method. In this embodiment, it is possible to store in advance a relationship equation between energy and temperature, or a relationship table between energy and temperature difference (the difference between the current temperature and a specific temperature). Once the already outputted energy has been calculated, it is possible to obtain the current temperature by calculating the relationship equation between energy and temperature, or by looking up the relationship table between energy and temperature difference.

[0024] Furthermore, if they do not match, adjusting the output power and / or output time of the microwave source unit specifically means, This involves comparing the calculated current temperature with the current set temperature in a pre-defined temperature curve, If the calculated current temperature is greater than the set temperature, the microwave source unit is controlled to reduce the output power and / or the output time. If the calculated current temperature is lower than the set temperature, the microwave source unit may be controlled to increase the output power.

[0025] In this embodiment, after comparing the calculated current temperature with the current set temperature on a preset temperature curve, the following three comparison results may occur: Result 1 is that the calculated temperature is greater than the set temperature, meaning the actual temperature of the tobacco medium is too high. In this case, it is possible to reduce the output power of the microwave source unit and / or decrease the output time. Result 2 is that the calculated temperature is less than the set temperature, meaning the actual temperature of the tobacco medium is too low. In this case, 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, meaning the actual temperature of the tobacco medium is just right, and there is no need to adjust the output power and / or output time.

[0026] Furthermore, in one selective embodiment, step S10 determines the initial time point corresponding to when the tobacco medium reaches a specific temperature, according to the frequency detected in real time. The breakpoint frequency is determined according to the frequency detected in real time, and the time point corresponding to the breakpoint frequency is set as the initial time point. This includes determining the initial temperature of the tobacco medium as the specific temperature.

[0027] Furthermore, the inflection frequency can be determined by selecting the highest frequency among those detected in real time. What should be explained here is that after frequency tracking detection, the detected frequencies can be rearranged and their maximum value found, which becomes the inflection frequency. Alternatively, the detected frequencies can be arranged in chronological order to form a frequency curve, which is clearly a parabola opening downwards, and the maximum value of this parabola becomes the inflection 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. Furthermore, since the real part of the dielectric constant affects the wavelength of electromagnetic waves, and the wavelength of electromagnetic waves 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 frequency inflection point corresponds to the inflection point of the change in the real part of the dielectric constant of the tobacco medium, i.e., 3.85. Moreover, the temperature corresponding to the inflection point of the change in the real part of the dielectric constant (specific temperature) is determined to be 100°C. Consequently, the temperature at the time when the frequency inflection point appears can be determined as the specific temperature.

[0029] JPEG0007887564000001.jpg81170

[0030] Figure 3 is a logical structure diagram of one embodiment of the heating non-combustion device according to the present invention, which includes a main control unit 10, a microwave source unit 20, and a tobacco medium 30, the microwave source unit 20 of which may include a microwave signal source for generating a microwave signal and a power amplifier for power amplified 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. The first determination module 11 detects the frequency of the microwave signal in real time when heating the tobacco medium 30 using a microwave heating method, and determines the initial time corresponding to when the tobacco medium 30 reaches a specific temperature according to the frequency detected in real time. The second determination module 12 determines the energy required for the tobacco medium 30 from the initial time according to the specific temperature and a preset target temperature. The control module 13 controls 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, wherein the calculation module calculates the output energy of the microwave source unit from the initial time to the present time 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 determines the current temperature of the tobacco medium according to the output energy and the specific temperature; the judgment module determines whether the calculated current temperature matches the current set temperature in a preset temperature curve; and the adjustment module adjusts the output power and / or output time of the microwave source unit if they do not match.

[0032] It should be understood that the first deterministic module 11, the second deterministic module 12, the control module 13, the calculation module, the third deterministic module, the decision module, and the adjustment module may be implemented by integrating these modules into the main control unit 10, or they may be implemented as multiple independent modules.

[0033] Figure 4 is a logical structure diagram of Embodiment 2 of the heating non-combustion device according to the present invention, which includes a main control unit 10, a microwave source unit 20, and 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, wherein the output terminal of the microwave source unit 20 is connected to the first terminal of the circulator 40, the second terminal of the circulator 40 is connected to the radiation unit 50, and the tobacco medium is connected to the radiation unit Located within the radiation range of the circulator 50, the first ends of the forward coupler 61 and the reverse coupler 62 are connected to the third ends of the circulator 40, the second end of the forward coupler 61 is connected to the input terminal of the forward detection unit 71, the second end of the reverse coupler 62 is connected to the input terminal of the reverse detection unit 72, the output terminals of the forward detection unit 71 and the output terminals of the reverse detection unit 72 are connected to the first determinative module in the main control unit 10, and the control module in the main control unit 10 is connected to the input terminal of the microwave source unit 20.

[0034] In this embodiment, the microwave source unit 20 outputs the microwave signal under the control of the main control unit 10, and the microwave signal is transmitted to the radiating unit 50 via the circulator 40. The radiating unit 50 then radiates the microwave signal, and the tobacco medium in the heating cavity is located within the radiation range of the radiating unit 50, thus becoming heated. Simultaneously, the temperature of the tobacco medium causes a change in the real part of the dielectric constant of the tobacco medium, which 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 collect the voltage of the microwave signal via the corresponding forward coupler 61 and reverse coupler 62, respectively, and send it to the first determinative module in the main control unit 10. The first determination module can determine the frequency of the microwave signal by analyzing the voltage of the collected microwave signal, then determine the fracture frequency, and further define the point in time when the fracture frequency appears as the initial point, with the temperature at this initial point being a specific temperature (if a tobacco medium is specified, the corresponding specific temperature is also determined).

[0035] The present invention further constructs a program product including a processor, wherein when a stored computer program is executed by the processor, the steps of the heating control method for the heating non-combustion 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 it may be another general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. Among these, the general-purpose processor may be a microprocessor, or any commonly used processor, etc.

[0037] Furthermore, when a computer program is executed by the processor, it is possible to realize the steps of any one of the heating control methods for a heating non-combustion device according to the embodiment of the present invention, thereby realizing the beneficial effects that can be achieved by any one of the heating control methods for a heating non-combustion device according to the embodiment of the present invention. For details, please refer to the embodiments described above, as they will not be repeated here.

[0038] The present invention further constructs a storage medium that stores a computer program, wherein when the computer program is executed by a processor, the steps of the heating control method for 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 code, such as USB flash drives, portable hard disks, read-only memory (ROM), magnetic disks, or optical disks. Furthermore, when a computer program stored on the storage medium is executed, it is possible to realize the steps of any one of the heating control methods for a non-combustible heating device according to the embodiments of the present invention, thereby realizing the beneficial effects that can be achieved by any one of the heating control methods for a non-combustible heating device according to the embodiments of the present invention. For details, please refer to the embodiments described above, as they will not be repeated here.

[0040] The foregoing describes only preferred embodiments of the present invention and is not intended to limit it. Those skilled in the art will know that the present invention can be modified and adapted in various ways. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are all included within the scope of the claims.

Claims

1. A heating control method for a non-combustion heating device, When heating tobacco media using a microwave heating method, the frequency of the microwave signal is detected in real time, and the initial time point corresponding to when the tobacco media reaches a specific temperature is determined according to the frequency detected in real time. The energy required for the tobacco medium from the initial point in time is determined according to the specified temperature and the predetermined target temperature. This includes 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, Determining the initial time point corresponding to when the tobacco medium reaches a specific temperature, according to the frequency detected in real time, The breakpoint frequency is determined according to the frequency detected in real time, and the time point corresponding to the breakpoint frequency is set as the initial time point. A heating control method for a heating non-combustion device, characterized by comprising determining the initial temperature of the tobacco medium as the specific temperature.

2. During the process in which the temperature of the tobacco medium reaches the target temperature, the output energy of the microwave source unit from the initial time to the present time is calculated according to the real-time output power and output time of the microwave source unit. The current temperature of the tobacco medium is determined according to the output energy and the specified temperature. To determine whether the calculated current temperature matches the current set temperature in a pre-set temperature curve, A heating control method for a non-combustible heating apparatus according to claim 1, further comprising adjusting the output power and / or output time of the microwave source unit if they do not match.

3. Determining the current temperature of the aforementioned tobacco medium is: To determine the current temperature of the tobacco medium using a calculation method based on a formula, or, A heating control method for a heating non-combustion device according to claim 2, characterized in that it includes determining the current temperature of the tobacco medium using a table lookup method.

4. If they do not match, the output power and / or output time of the microwave source unit may be adjusted. This involves comparing the calculated current temperature with the current set temperature in a pre-defined temperature curve, If the calculated current temperature is greater than the set temperature, the microwave source unit is controlled to reduce the output power and / or the output time. A heating control method for a non-combustion heating apparatus according to claim 2, characterized in that if the calculated current temperature is lower than the set temperature, the microwave source unit is controlled to increase the output power.

5. Determining the breakpoint frequency according to the frequency detected in real time is A heating control method for a non-combustion heating device according to claim 1, characterized in that the maximum frequency among the frequencies detected in real time is set as the breakpoint frequency.

6. A program product including a processor, wherein when a stored computer program is executed by the processor, the steps of the heating control method for a heating non-combustion device described in any one of claims 1 to 5 are realized.

7. A storage medium storing a computer program, wherein when the computer program is executed by a processor, the steps of the heating control method for a heating non-combustion device described in any one of claims 1 to 5 are realized.

8. A heating non-combustion device including a microwave source unit and a tobacco medium, A first determination module for heating tobacco media using a microwave heating method, which detects the frequency of the microwave signal in real time, determines the initial time point corresponding to when the tobacco media reaches a specific temperature according to the frequency detected in real time, determines the breakpoint frequency according to the frequency detected in real time, sets the time point corresponding to the breakpoint frequency as the initial time point, and determines the temperature of the tobacco media at the initial time point as the specific temperature, A second determination module for determining the energy required for the tobacco medium from the initial point in time, according to the specified temperature and a preset target temperature, A heating non-combustion device 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.

9. A calculation module for calculating the output energy of the microwave source unit from the initial time to the present time, 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. A third determination module for determining the current temperature of the tobacco medium according to the output energy and the specified temperature, A judgment module for determining whether the calculated current temperature matches the current set temperature in a pre-set temperature curve, The heating non-combustion apparatus according to claim 8, further comprising an adjustment module for adjusting the output power and / or output time of the microwave source unit if they do not match.

10. The heating non-combustion device according to claim 8, further comprising a circulator, a radiation unit, a forward coupler, a reverse coupler, a forward detection unit, and a reverse detection unit, wherein the output terminal of the microwave source unit is connected to the first terminal of the circulator, the second terminal 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 terminals of the forward coupler and the reverse coupler are each connected to the third terminal of the circulator, the second terminal of the forward coupler is connected to the input terminal of the forward detection unit, the second terminal of the reverse coupler is connected to the input terminal of the reverse detection unit, and the output terminals of the forward detection unit and the reverse detection unit are each connected to the first determinative module.

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