Control method, control module, and aerosol generating device

Abstract

The control method includes the steps of: (01) outputting a high-frequency analog signal by a high-frequency oscillator circuit in the high-frequency signal generating unit; (02) converting the high-frequency analog signal into a measurable signal; (03) measuring a signal parameter of the measurable signal; and (04) determining whether an aerosol-generating substrate is loaded on the base based on the signal parameter and a predetermined reference parameter.

Description

[Technical Field]

[0001] This application claims priority to and the benefit of patent application number 202211280133.X, filed with the State Intellectual Property Office of China on October 19, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of aerosol generation, and more particularly to a control method, a control module and an aerosol generating device. [Background technology]

[0003] Aerosol generators, such as heat-not-burning (HNB) low-temperature heating devices, are primarily new electronic atomizers that heat and atomize solid "aerosol-generating substrates," and are welcomed by many users for their health and cost-effectiveness. As the demand for more intelligent aerosol generators increases, it is desirable for aerosol generators to have the ability to automatically start heating. However, current aerosol generators cannot distinguish whether an "aerosol-generating substrate" is loaded, making this impossible. Summary of the Invention [Problem to be solved by the invention]

[0004] The embodiments of the present application provide a control method, a control module, and an aerosol generating device that at least solve the problem of not being able to distinguish whether or not an "aerosol-generating substrate" is loaded. [Means for solving the problem]

[0005] According to a first aspect, the present application provides a control method applicable to an aerosol generating device, the control method comprising the steps of: outputting a high-frequency analog signal by a high-frequency oscillator circuit in a high-frequency signal generating unit, the high-frequency signal generating unit being provided on a substrate and including a measured capacitor connected to the high-frequency oscillator circuit, the high-frequency analog signal being used to represent the capacitance of the measured capacitor; converting the high-frequency analog signal into a measurable signal; measuring signal parameters of the measurable signal; and determining whether an aerosol-generating substrate is loaded on the substrate based on the signal parameters and predetermined reference parameters.

[0006] According to a second aspect, the present application provides a control module applicable to an aerosol generating device, the control module including a substrate, a high-frequency signal generating unit, a signal converting unit, and a main control unit. The high-frequency signal generating unit includes a test capacitor assembly and a high-frequency oscillator circuit, the test capacitor assembly including a test capacitor, the test capacitor being mounted on the substrate and connected to the high-frequency oscillator circuit, the high-frequency oscillator circuit being configured to output a high-frequency analog signal representing the capacitance of the test capacitor. The signal converting unit is connected to the high-frequency oscillator circuit and configured to convert the high-frequency analog signal into a measurable signal. The main control unit is connected to the signal converting unit and configured to measure a signal parameter of the measurable signal and determine whether an aerosol-generating substrate is loaded on the substrate based on the signal parameter and a predetermined reference parameter.

[0007] According to a third aspect, the present application provides an aerosol generating device including the control module described above. The control module includes a substrate, a high-frequency signal generating unit, a signal converting unit, and a main control unit. The high-frequency signal generating unit includes a test capacitor assembly and a high-frequency oscillator circuit, the test capacitor assembly including a test capacitor, the test capacitor being mounted on the substrate and connected to the high-frequency oscillator circuit, the high-frequency oscillator circuit being configured to output a high-frequency analog signal representing the capacitance of the test capacitor. The signal converting unit is connected to the high-frequency oscillator circuit and configured to convert the high-frequency analog signal into a measurable signal. The main control unit is connected to the signal converting unit and configured to measure a signal parameter of the measurable signal and determine whether an aerosol-generating substrate is loaded on the substrate based on the signal parameter and a predetermined reference parameter. [Effects of the Invention]

[0008] The control method, control module, and aerosol-generating device of the present application include using a high-frequency signal-generating unit to output a high-frequency analog signal, converting the high-frequency analog signal into a measurable signal, measuring signal parameters of the measurable signal, and finally determining whether an aerosol-generating substrate is loaded on a substrate based on the signal parameters and predetermined reference parameters. If it is intelligently determined that an aerosol-generating substrate is loaded on the substrate, the purpose of intelligently starting the aerosol-generating device to heat the aerosol-generating substrate can be achieved; if it is intelligently determined that an aerosol-generating substrate is not loaded on the substrate, the purpose of intelligently stopping the aerosol-generating device can be achieved.

[0009] Additional aspects and advantages of the present application will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the present application.

[0010] The above and / or additional aspects and advantages of the present application will become apparent and easier to understand from the following description of the embodiments with reference to the drawings. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a flowchart of a control method applied to an aerosol generating device according to some embodiments of the present application. [Figure 2] 1 is a structural schematic diagram of a control module applied to an aerosol generating device according to some embodiments of the present application. FIG. [Figure 3] 1 is a flowchart of a control method applied to an aerosol generating device according to some embodiments of the present application. [Figure 4] 1 is a structural schematic diagram of a capacitor to be measured and a substrate in a control module according to some embodiments of the present application. FIG. [Figure 5] 1 is a flowchart of a control method applied to an aerosol generating device according to some embodiments of the present application. [Figure 6] 1 is a structural schematic diagram of a capacitor to be measured and a substrate in a control module according to some embodiments of the present application. FIG. [Figure 7] FIG. 10 is a schematic outline view of a capacitor to be measured in a control module according to some embodiments of the present application. [Figure 8] FIG. 10 is a schematic outline view of a capacitor to be measured in a control module according to some embodiments of the present application. [Figure 9] FIG. 1 is a schematic diagram of an equivalent circuit of a capacitor to be measured in a control module according to some embodiments of the present application. [Figure 10] FIG. 1 is a circuit schematic diagram of a measured capacitor assembly in a control module according to some embodiments of the present application. [Figure 11] FIG. 10 is a circuit schematic diagram of a measured capacitor assembly in a control module according to some other embodiments of the present application. [Figure 12]FIG. 10 is a circuit schematic diagram of a measured capacitor assembly in a control module according to further embodiments of the present application. [Figure 13] FIG. 10 is a circuit schematic diagram of a measured capacitor assembly in a control module according to further embodiments of the present application. [Figure 14] FIG. 1 is a schematic diagram of a high frequency oscillator circuit in a control module according to some embodiments of the present application. [Figure 15] FIG. 10 is a schematic diagram of a high frequency oscillator circuit in a control module according to some other embodiments of the present application. [Figure 16] FIG. 10 is a schematic diagram of a high-frequency oscillator circuit in a control module according to yet another embodiment of the present application. [Figure 17] FIG. 1 is a schematic diagram of a control module signal transmission according to some embodiments of the present application. [Figure 18] FIG. 2 is a circuit schematic diagram of a signal conversion unit in a control module according to some embodiments of the present application. [Figure 19] 1 is a flowchart of a control method applied to an aerosol generating device according to some embodiments of the present application. [Figure 20] 1 is a flowchart of a control method applied to an aerosol generating device according to some embodiments of the present application. [Figure 21] 1 is a flowchart of a control method applied to an aerosol generating device according to some embodiments of the present application. [Figure 22] 1 is a flowchart of a control method applied to an aerosol generating device according to some embodiments of the present application. [Figure 23] 1 is a structural schematic diagram of an aerosol generating device according to some embodiments of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, the embodiments of the present application will be described in detail. The embodiments are illustrated in the drawings, and the same or similar reference numerals throughout the drawings indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are merely illustrative and are intended to explain the present application, and should not be understood as limiting the present application.

[0013] In describing the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply a relative importance or to implicitly indicate the number of technical features shown. Thus, a feature qualified by "first" or "second" may explicitly or implicitly include one or more of said features. In describing the embodiments of the present application, unless explicitly and specifically limited, "plurality" means two or more than two.

[0014] As shown in FIGS. 1, 2 and 4, the control method according to the embodiment of the present application is applied to an aerosol generating device 100 (shown in FIG. 23), and includes the following steps 01 to 04.

[0015] In step 01, a high-frequency analog signal is output by a high-frequency oscillator circuit 133 in a high-frequency signal generating unit 13, the high-frequency signal generating unit 13 being provided on a base 11 and including a measurement target capacitor 1311 connected to the high-frequency oscillator circuit 133, and the high-frequency analog signal is configured to represent the capacitance of the measurement target capacitor 1311.

[0016] In step 02, the high frequency analog signal is converted into a measurable signal.

[0017] In step 03, a signal parameter of the measurable signal is measured.

[0018] In step 04, it is determined whether or not an aerosol-generating substrate 20 is loaded onto the base 11 based on the signal parameters and predetermined criteria parameters.

[0019] The control module 10 applied to the aerosol generating device 100 according to the embodiment of the present application includes a substrate 11, a high-frequency signal generating unit 13, a signal converting unit 15, and a main control unit 17. The high-frequency signal generating unit 13 includes a test capacitor assembly 131 and a high-frequency oscillator circuit 133. The test capacitor assembly 131 includes a test capacitor 1311, which is mounted on the substrate 11 and connected to the high-frequency oscillator circuit 133. The high-frequency oscillator circuit 133 outputs a high-frequency analog signal, which is configured to represent the capacitance of the test capacitor 1311. The signal converting unit 15 is connected to the high-frequency oscillator circuit 133 and converts the high-frequency analog signal into a measurable signal. The main control unit 17 is connected to the signal converting unit 15, measures a signal parameter of the measurable signal, and determines whether the aerosol-generating substrate 20 is loaded on the substrate 11 based on the signal parameter and a predetermined reference parameter. In this embodiment, the aerosol-generating substrate 20 may be tobacco. Specifically, the tobacco may include at least two sections: a substrate section containing tobacco material and a filter section connected to one end of the substrate section. The substrate section may include solid materials such as cut tobacco, tobacco sheets, or tobacco granules, and may contain organic materials such as corresponding flavoring materials to release aromas when heated. At least one temperature-reducing section may be included between the substrate section and the filter section, the function of which is to extend the aerosol transport path and reduce its temperature. The aerosol-generating substrate 20 is loaded into the base 11 by insertion.

[0020] As shown in FIGS. 4 and 6 , the substrate 11 is a component for forming a capacitor. The substrate 11 may have a columnar structure with a receiving cavity. The columnar structure may be a cylindrical structure, a rectangular structure, a triangular structure, or the like, but is not limited thereto. The receiving cavity receives the aerosol-generating substrate 20. When the aerosol-generating substrate 20 is loaded within the substrate 11, the aerosol-generating substrate 20 is heated by the heat generated by the heating element, which volatilizes the corresponding components and generates an aerosol that can be inhaled by the user. In one embodiment, the substrate 11 is made of a non-conductive material, such as glass, high-temperature resistant resin, or engineering plastic. In another embodiment, the substrate 11 is made of a conductive material, such as a conductive metal, specifically copper or aluminum. When the substrate 11 is made of a conductive material, it may also function as a heating element to generate heat.

[0021] The frequency of the "high-frequency analog signal" is usually high, generally greater than 20 MHz, making it impossible to accurately measure the data using current measurement equipment. While precision measurement equipment can accurately measure the data, it is costly and lacks versatility. Therefore, the "high-frequency analog signal" may first be converted into a "measurable signal." The frequency of the "measurable signal" is much lower than that of the "high-frequency analog signal," allowing it to be accurately measured using current measurement equipment. The "signal parameters" include data such as frequency and amplitude, and the "reference parameters" are data such as frequency and amplitude that can be acquired before the aerosol generating device 100 is shipped and directly retrieved by the aerosol generating device 100 after shipment. In this application, the "signal parameters" and "reference parameters" are frequency, for example. The "reference parameters" are values ​​that are set when the aerosol generating device 100 is calibrated before shipment, and the values ​​may be set according to the specific calibration situation. Aerosol generating devices 100 with different model numbers may use different "reference parameters," and aerosol generating devices 100 with the same model number may use the same "reference parameters" or different "reference parameters."

[0022] The control method and control module 10 of the present application output a high-frequency analog signal via a high-frequency signal generating unit 13, convert the high-frequency analog signal into a measurable signal, measure signal parameters of the measurable signal, and finally determine whether an aerosol-generating substrate 20 is loaded on the base 11 based on the signal parameters and predetermined reference parameters. If it is intelligently determined that an aerosol-generating substrate 20 is loaded on the base 11, the purpose of intelligently starting the aerosol-generating device 100 to heat the aerosol-generating substrate 20 can be achieved; if it is intelligently determined that an aerosol-generating substrate 20 is not loaded on the base 11, the purpose of intelligently stopping the aerosol-generating device 100 can be achieved.

[0023] As shown in Figures 2 to 4, in some embodiments, step 04 of identifying whether or not the aerosol-generating substrate 20 is loaded on the base 11 based on the signal parameters and predetermined reference parameters includes the following steps 041 to 043.

[0024] In step 041, if the difference between the signal parameter and the reference parameter is within a first predetermined range, it is determined that the aerosol-generating substrate 20 is not loaded onto the base 11.

[0025] In step 043, it is determined that the aerosol-generating substrate 20 is loaded onto the base 11 if the difference between the signal parameter and the reference parameter is within a second predetermined range.

[0026] The main control unit 17 further determines that the aerosol-generating substrate 20 is not loaded onto the base 11 if the difference between the signal parameter and the reference parameter is within a first predetermined range, and determines that the aerosol-generating substrate 20 is loaded onto the base 11 if the difference between the signal parameter and the reference parameter is within a second predetermined range.

[0027] The "first predetermined range" and the "second predetermined range" are both calibration data that can be obtained before the aerosol-generating device 100 is shipped and that are directly called up by the aerosol-generating device 100 after shipping. The "first predetermined range" is a parameter range (frequency range) within which it is determined that the aerosol-generating substrate 20 is not loaded on the base 11, and the "second predetermined range" is a parameter range (frequency range) within which it is determined that the aerosol-generating substrate 20 is loaded on the base 11. The "second predetermined range" differs from the "first predetermined range," and the lower limit of the "second predetermined range" is usually greater than the upper limit of the "first predetermined range." For example, if the "first predetermined range" is 550Hz to 570Hz and the difference between the signal parameter and the reference parameter is between 550Hz and 570Hz, e.g., 560Hz, it indicates that the aerosol-generating substrate 20 is not loaded onto the base 11, and if the "second predetermined range" is 2980Hz to 3000Hz and the difference between the signal parameter and the reference parameter is between 2980Hz and 3000Hz, e.g., 2980Hz, it indicates that the aerosol-generating substrate 20 is loaded onto the base 11.

[0028] 4, the capacitor 1311 to be measured includes two conductive plates, which are insulated and spaced apart from each other in the height direction of the base 11. In one example, both plates are annular plates that surround the peripheral wall of the base 11. As shown in FIG. 4(a), both plates A and B are annular plates that surround the peripheral wall of the base 11, and the plates A and B constitute a single capacitor 1311 to be measured. In another example, one of the two plates is provided on an end surface of the base 11, and the other is an annular plate that surrounds the peripheral wall of the base 11. As shown in FIG. 4(b), the plate A is an annular plate that surrounds the peripheral wall of the base 11, and the plate B is provided on the end surface of the base 11, and the plates A and B constitute a single capacitor 1311 to be measured. The annular plates may be closed annular plates, i.e., the cross sections of plates A and B are both circular; the annular plates may be open annular plates, i.e., the cross sections of plates A and B are both C-shaped; or the two plates may be a combination of an open annular plate and a closed annular plate, for example, one of plates A and B is a closed annular plate with a circular cross section, and the other is an open annular plate with a C-shaped cross section.

[0029] 7, the edges of the annular electrode plate on both sides in the height direction of the base 11 (edges in the circumferential direction) include one or more of the following shapes: arc, rectangle, bow, triangle, spiral. The edges of the annular electrode plate on both sides in the height direction of the base 11 include one or more of the following shapes: linear, non-linear, flat, or non-flat.

[0030] If base 11 is made of a non-conductive material, electrode plates A and B may be attached to base 11 by bonding them together. In this case, electrode plates A and B are flexible, and of course, electrode plates A and B may be attached to base 11 by coating or plating. If base 11 is made of a conductive material, electrode plates A and B may be partial structures separated from base 11, and the two may be insulated from each other to form one measurement target capacitor 1311.

[0031] In some other embodiments, as shown in Figure 4, the capacitor under test 1311 includes two conductive plates that are distributed around the circumferential direction of the base 11 and are spaced apart and insulated from each other. As shown in Figure 4(c), plate A and plate B are distributed around the circumferential direction of the base 11 and are spaced apart and insulated from each other to form a covered capacitor under test 1311.

[0032] 8, the edges on both sides of the plate of the covered capacitor under test 1311 in the circumferential direction of the base 11 (edges in the circumferential direction) include one or more of the following shapes: arc, rectangle, bow, triangle, and spiral. The edges on both sides of the plate of the covered capacitor under test 1311 in the circumferential direction of the base 11 (edges in the circumferential direction) include one or more of the following shapes: linear, nonlinear, flat, and non-flat.

[0033] In some embodiments, the number of capacitors under test 1311 may be one, as shown in Figure 4. In other embodiments, the number of capacitors under test 1311 may be at least two, such as two, three, or more, as shown in Figure 6.

[0034] 6, when there are a plurality of (at least two) capacitors under test 1311, in some embodiments, the plates of each capacitor under test 1311 are all circular plates, and the two plates of each capacitor under test 1311 are independent of each other, with the plates paired to form each capacitor under test 1311. In one example, the plates of each pair are formed in pairs sequentially along the height direction of the base 11, and specifically, as shown in FIG. 6(a), plate A and plate B pair to form one capacitor under test 1311, and plate C and plate D pair to form another capacitor under test 1311. In another example, each pair of electrodes is formed in alternating pairs spaced apart along the height direction of the base 11, and as shown in Figure 6(b), specifically, electrodes A, B, C, and D are arranged sequentially along the height direction of the base 11, with electrodes A and C paired together to form one capacitor 1311 to be measured, and electrodes B and D paired together to form another capacitor 1311 to be measured.

[0035] 6, when there are a plurality of (at least two) capacitors under test 1311, in some other embodiments, the plurality of capacitors under test 1311 share one electrode plate, and the other electrode plate of each capacitor under test 1311 is provided on base 11 at intervals from one another. In one example, as shown in FIG. 6(c), shared electrode plate E is provided on an end face of base 11, and electrode plates A, B, C, and D are provided on base 11 at intervals from one another, with electrode plates E and A paired to form one capacitor under test 1311, electrode plates E and B paired to form one capacitor under test 1311, electrode plates E and C paired to form one capacitor under test 1311, and electrode plates E and D paired to form one capacitor under test 1311. In another example, as shown in FIG. 6(d), electrode plates A, B, C, and D are provided on base 11 at intervals from one another, electrode plate D is a shared electrode plate, electrode plate D and electrode plate A are paired to form one capacitor to be measured 1311, electrode plate D and electrode plate B are paired to form one capacitor to be measured 1311, and electrode plate D and electrode plate C are paired to form one capacitor to be measured 1311.

[0036] 6, when there are a plurality of (at least two) capacitors under test 1311, in yet another embodiment, all of the plurality of capacitors under test 1311 are covered capacitors under test 1311. As shown in FIG. 6(e), electrode plate A and electrode plate B are paired to form one covered capacitor under test 1311, and electrode plate C and electrode plate D are paired to form one covered capacitor under test 1311, and the two covered capacitors under test 1311 are provided at an interval along the height direction of base 11.

[0037] As shown in FIGS. 2 and 5, in some embodiments, when there are at least two capacitors 1311 to be measured, the at least two capacitors 1311 to be measured are sequentially arranged on the base 11 along the height direction of the base 11, and both are connected to the high-frequency oscillation circuit 133, Step 01 of outputting a high frequency analog signal by the high frequency oscillation circuit 133 in the high frequency signal generating unit 13 includes: Step 011 includes outputting, by a high frequency oscillator circuit 133, a plurality of high frequency analog signals used to respectively represent the capacitances of at least two capacitors 1311 to be measured; Step 02 of converting a high frequency analog signal into a measurable signal includes: 021 converting a plurality of high frequency analog signals into a plurality of measurable signals; Step 03 of measuring a signal parameter of a measurable signal includes: measuring a signal parameter of each measurable signal; Step 04 of determining whether an aerosol-generating substrate 20 is loaded on the base 11 based on the signal parameters and predetermined reference parameters includes: determining 045 that an aerosol-generating substrate 20 is not loaded onto the base 11 if all of the differences between the signal parameters and the reference parameters are within a first predetermined range; and step 047 determining that an aerosol-generating substrate 20 is loaded onto the base 11 if the difference between any of the signal parameters and the reference parameter is within a second predetermined range. Correspondingly, the high-frequency oscillator circuit 133 is further configured to output a plurality of high-frequency analog signals used to respectively represent the capacitances of the plurality of target capacitors 1311. The signal conversion unit 15 is further configured to convert the plurality of high-frequency analog signals into a plurality of measurable signals. The main control unit 17 is further configured to measure a signal parameter of each measurable signal, and to determine that an aerosol-generating substrate 20 is loaded on the base 11 if a difference between any signal parameter and a reference parameter is within a second predetermined range, and to determine that an aerosol-generating substrate 20 is not loaded on the base 11 if all differences between the signal parameters and the reference parameters are within a first predetermined range.

[0038] Whether the number of measurement target capacitors 1311 is one or at least two, the equivalent circuit between the two plates of each measurement target capacitor 1311 and the aerosol-generating substrate 20 is as shown in Figure 9. If the aerosol-generating substrate 20 is considered equivalent to one plate C of a capacitor, plate A and the aerosol-generating substrate 20 form capacitor (1), and plate B and the aerosol-generating substrate 20 form capacitor (2). A schematic diagram of the formed equivalent capacitor is as shown in the right diagram of Figure 9. The theoretical formula for capacitance is C = ε(S / d), where C is the capacitance value, ε is the dielectric constant between the plates, S is the plate area, and d is the distance between the plates. Because the conductivity of the aerosol-generating substrate 20 is much smaller than that of electrodes A and B, when the aerosol-generating substrate 20 is loaded between electrodes A and B, the dielectric constant ε of the material between electrodes A and B changes, resulting in a change in the capacitance between electrodes A and B. Whether or not the capacitance between electrodes A and B changes can be used to identify whether or not the aerosol-generating substrate 20 is loaded between electrodes A and B. The aerosol-generating substrate 20 may be tobacco, a solid drug, or another solid substance. Alternatively, the aerosol-generating substrate 20 may be a liquid substance contained in a solid container.

[0039] 2 and 9, the measurement target capacitor assembly 131 includes only the measurement target capacitor Cx, which includes two plates, for example, plate A and plate B, provided on the substrate 11. In this case, the high-frequency oscillator circuit 133 is directly connected to the two plates (plate A and plate B) of the measurement target capacitor Cx. In this case, the high-frequency analog signal output from the high-frequency oscillator circuit 133 directly represents the capacitance of the measurement target capacitor Cx, and is very direct and accurate.

[0040] In some other embodiments, as shown in FIGS. 2 and 10 to 13, the test target capacitor assembly 131 includes a test target capacitor Cx and at least one composite capacitor, and the test target capacitor Cx includes two plates, for example, plate A and plate B, provided on the base 11. The composite capacitor may be a finished capacitor manufactured by a capacitor manufacturer, or may be a capacitor made of structural members. The test target capacitor Cx is connected in series, parallel, or series-parallel with the at least one composite capacitor, and the composite capacitor is connected to a high-frequency oscillator circuit 133, so that at least one plate of the test target capacitor Cx is connected to the high-frequency oscillator circuit 133 via the composite capacitor. Since the capacitor Cx to be measured is provided on the base 11, there are certain wiring difficulties involved in directly connecting the high-frequency oscillator circuit 133 and the two plates of the capacitor Cx to be measured. In this embodiment, however, by providing a composite capacitor, the capacitor Cx to be measured can be pulled out from the base 11 and then connected to the high-frequency oscillator circuit 133, thereby realizing an indirect connection between the capacitor Cx to be measured and the high-frequency oscillator circuit 133 and reducing the difficulty of wiring.

[0041] 10, the test capacitor assembly 131 further includes a composite capacitor C1 and a composite capacitor C2, and the composite capacitor C1, the test capacitor Cx, and the composite capacitor C2 are sequentially connected in series. As shown in FIG. 16, the electrode plate A of the test capacitor Cx is connected to the first capacitor end Cap1 of the high-frequency oscillator circuit 133 via the composite capacitor C1, and the electrode plate B of the test capacitor Cx is connected to the second capacitor end Cap2 of the high-frequency oscillator circuit 133 via the composite capacitor C2.

[0042] 11, the test capacitor assembly 131 includes a composite capacitor C1 and a composite capacitor C2, and the composite capacitor C1, the test capacitor Cx, and the composite capacitor C2 are connected in parallel. As shown in FIG. 16, the plates A and B of the test capacitor Cx are connected in parallel to the composite capacitor C1 and the composite capacitor C2, and the two plates of the composite capacitor farthest from the substrate 11 are connected to the first capacitor terminal Cap1 and the second capacitor terminal Cap2 of the high-frequency oscillator circuit 133, respectively.

[0043] 12, the capacitor assembly 131 to be measured further includes a composite capacitor C1, a composite capacitor C2, a composite capacitor C3, and a composite capacitor C4, and the capacitor Cx to be measured is connected in parallel with the composite capacitors C1 and C2, and then connected in series with the composite capacitors C3 and C4. As shown in FIG. 16, the plate A of the capacitor Cx to be measured is connected to the first capacitor end Cap1 of the high-frequency oscillator circuit 133 via the composite capacitor C3, and the plate B of the capacitor Cx to be measured is connected to the second capacitor end Cap2 of the high-frequency oscillator circuit 133 via the composite capacitor C4.

[0044] 13, the test capacitor assembly 131 further includes a composite capacitor C1, a composite capacitor C2, a composite capacitor C3, and a composite capacitor C4, where the composite capacitors C1, C2, and C3 are connected in parallel and then connected in series with the test capacitor Cx and the composite capacitor C4. As shown in FIG. 16, the plate B of the test capacitor Cx is connected to the first capacitor end Cap1 of the high-frequency oscillator circuit 133 via the composite capacitor C4, and the plate A of the test capacitor Cx is directly connected to the second capacitor end Cap2 of the high-frequency oscillator circuit 133.

[0045] The number of composite capacitors in the capacitor assembly 131 to be measured and the connection relationship with the capacitor Cx to be measured are not limited to the systems shown in FIGS. 9 to 13, but may be other types, and will not be listed here.

[0046] Furthermore, when the number of capacitors Cx under measurement is two or more, the number of capacitor terminals of the high-frequency oscillator circuit 133 is the same as the total number of plates of the capacitors Cx under measurement. In this case, in one example, both of the two plates of each capacitor Cx under measurement are directly connected to the capacitor terminal Cap of the high-frequency oscillator circuit 133. In another example, both of the two plates of some capacitors Cx under measurement are directly connected to the capacitor terminal Cap of the high-frequency oscillator circuit 133, and at least one plate of some other capacitors Cx under measurement is connected to the capacitor terminal Cap of the high-frequency oscillator circuit 133 via a composite capacitor.

[0047] The test capacitor assembly 131 and the high-frequency oscillator circuit 133 constitute the high-frequency signal generating unit 13, and a change in the capacitance value of the test capacitor assembly 131 can cause a change in the oscillation frequency of the high-frequency oscillator circuit 133. As shown in FIG. 14, the high-frequency oscillator circuit 133 may be an LC oscillator circuit. As shown in FIG. 15, the high-frequency oscillator circuit 133 may be a crystal oscillator circuit. The high-frequency oscillator circuit 133 may be, but is not limited to, an active crystal oscillator or an integrated chip. The circuit structure of the high-frequency oscillator circuit 133 will be described below.

[0048] Specifically, as shown in FIG. 16, the high-frequency oscillator circuit 133 includes an integrated oscillator unit 1333 and an LC oscillator unit 1331, the output pin of the integrated oscillator unit 1333 is connected to the signal conversion unit 15, the first capacitor end Cap1 of the LC oscillator unit 1331 is connected to one electrode plate of the capacitor 1311 to be measured, the second capacitor end Cap2 of the LC oscillator unit 1331 is connected to the other electrode plate of the capacitor 1311 to be measured, and the second capacitor end Cap2 is grounded.

[0049] More specifically, the high-frequency oscillator circuit 133 further includes capacitors C2, C13, C14, C15, C16, C19, C29, resistors R11, R12, R6, and R17. The LC oscillator unit 1331 includes capacitors C27, C18, C20, C24, R13, and inductor L2. The first pin of the integrated oscillator unit 1333 is grounded via capacitor C15. One end of resistor R6 is connected between the first pin and capacitor C15, and the other end is connected to a power supply. The power supply is grounded via capacitor C2. The second pin of the integrated oscillator unit 1333 passes through capacitor C18 and resistor R13, and is connected to a first capacitor terminal Cap1. One end of capacitor C27 is connected between the first capacitor terminal Cap1 and resistor R13, and the other end is grounded. One end of inductor L2 is connected between resistor R13 and capacitor C18, and the other end is grounded. Capacitors C20 and C24 are connected in series between pin 2 and capacitor C18, and then grounded. Pin 3 of integrated oscillator unit 1333 is connected between capacitor C20 and capacitor C24. Pin 4 of integrated oscillator unit 1333 is connected to a third measurement point via resistor R17. Capacitor C16 has one end connected between pin 4 and resistor R17, and the other end is grounded. Pin 5 of integrated oscillator unit 1333 is grounded via resistor R12 and capacitor C29, and a power supply is connected between resistor R12 and capacitor C29. A second measurement point is located between pin 5 and resistor R12. Pin 6 of integrated oscillator unit 1333 is grounded. The seventh pin of the integrated oscillator unit 1333 is grounded via a capacitor C19, and a power supply is connected between the seventh pin and the capacitor C19. The eighth pin of the integrated oscillator unit 1333 is grounded via a resistor R11 and a capacitor C13, and a power supply is connected between the resistor R11 and the capacitor C13, and the resistor R11 is connected in parallel across the capacitor C14. A high-frequency analog signal may be output from the eighth pin to the signal conversion unit 15.

[0050] 16 is designed with only two capacitor terminals, and if there are multiple capacitors 1311 under test, the number of capacitor terminals increases accordingly, and the number of capacitor terminals matches the number of plates of all capacitors under test 1311. The eighth pin of the integrated oscillator unit 1333 is an output terminal that outputs a high-frequency analog signal corresponding to one capacitor under test 1311, and if there are multiple capacitors under test 1311, the integrated oscillator unit 1333 may be designed with multiple output terminals, and each output terminal outputs a high-frequency analog signal corresponding to one capacitor under test 1311.

[0051] After the high-frequency oscillation circuit 133 outputs the high-frequency analog signal, the signal conversion unit 15 can convert the high-frequency analog signal into a measurable signal. As shown in (a) of Figure 17, in some embodiments, the measurable signal may be a high-frequency digital signal, and the signal conversion unit 15 performs an analog-to-digital conversion process on the high-frequency analog signal to obtain the high-frequency digital signal, and in this case, the main control unit 17 measures the signal parameters of the "high-frequency digital signal." As shown in (b) of Figure 17, in other embodiments, the measurable signal may be a low-frequency analog signal, and the signal conversion unit 15 performs a frequency conversion process on the high-frequency analog signal to obtain a low-frequency analog signal having a lower frequency than the high-frequency analog signal, and in this case, the main control unit 17 measures the signal parameters of the "low-frequency analog signal." 17(c), in yet another embodiment, the measurable signal may be a low-frequency digital signal, and the signal conversion unit 15 performs frequency conversion and analog-to-digital conversion on the high-frequency analog signal to obtain a low-frequency digital signal having a lower frequency than the high-frequency analog signal, and in this case, the main control unit 17 measures the signal parameters of the "low-frequency digital signal." Hereinafter, an example will be described in which the measurable signal is a low-frequency digital signal, and the signal conversion unit 15 performs frequency conversion and analog-to-digital conversion on the high-frequency analog signal to obtain a low-frequency digital signal having a lower frequency than the high-frequency analog signal.

[0052] Specifically, as shown in FIG. 18 , the signal conversion unit 15 includes a comparator 151 and a digital divider 153. The comparator 151 receives a high-frequency analog signal generated by the high-frequency oscillator circuit 133 and converts it into a high-frequency digital signal. The digital divider 153 divides the high-frequency digital signal by 10 to obtain a low-frequency digital signal. In one example, the Frequency Input of the signal conversion unit 15 is connected to the 8th pin of the integrated oscillator unit 1333 and receives the high-frequency analog signal. The Fre-OUT1 of the signal conversion unit 15 is connected to the main control unit 17 and transmits the low-frequency digital signal to the main control unit 17. The main control unit 17 measures signal parameters of the “low-frequency digital signal” and determines whether the aerosol-generating substrate 20 is loaded on the base 11 based on the signal parameters and predetermined reference parameters.

[0053] If the method in step 04 (including steps 043 and 047) determines that the aerosol-generating substrate 20 is loaded onto the base 11, the control method may further include step 05 of controlling the base 11 to heat, as shown in Figures 19 and 20.

[0054] In this case, when the main control unit 17 determines that the aerosol-generating substrate 20 is loaded onto the substrate 11, it controls the substrate 11 to heat up. In some embodiments, the substrate 11 is made of a conductive material and may be a heating element, in which case the main control unit 17 can directly control the substrate 11 to generate heat. In other embodiments, the substrate 11 is made of a non-conductive material and a heating element is provided in the vicinity of the substrate 11, in which case the main control unit 17 can control the heating element to generate heat and thereby heat the substrate 11.

[0055] The control module 10 of the embodiment of the present application controls the substrate 11 to heat only when it determines that the aerosol-generating substrate 20 is loaded on the substrate 11, thereby achieving the objective of, on the one hand, intelligently determining whether the aerosol-generating substrate 20 is loaded and intelligently starting to heat the aerosol-generating substrate 20, and, on the other hand, intelligently determining whether the aerosol-generating substrate 20 is removed and intelligently stopping to heat the aerosol-generating substrate 20; and, on the other hand, avoiding erroneous heating when the aerosol-generating substrate 20 is not present in the aerosol-generating device 100 and preventing empty firing when the aerosol-generating substrate 20 is not present, thereby providing a certain level of intelligent safety.

[0056] Furthermore, as shown in Figures 19 and 20, when the substrate 11 heats up, the control method may further include step 06 of determining whether and how many times the aerosol-generating substrate 20 is inhaled based on the change in the signal parameter.

[0057] In this case, the main control unit 17 determines whether and how many puffs the aerosol-generating substrate 20 should be puffed on when the substrate 11 heats up, based on the change in the signal parameter.

[0058] The main control unit 17 determines that the aerosol-generating substrate 20 is loaded onto the substrate 11 and measures the initial signal parameters. For example, if the initial frequency is 65 MHz, when the substrate 11 is heated, aerosol fills between the capacitor plates, the capacitance value increases, and the frequency decreases. The more aerosol there is, the lower the frequency becomes. The resonant frequency varies with different aerosol generation amounts. The resonant frequency is between 59 MHz and 62 MHz, and after 10 division, the frequency is between 57 kHz and 61 kHz. The main control unit 17 can detect inhalations and the number of inhalations based on the collected frequency change trends. For example, when heated, aerosol fills between the capacitor plates, and the frequency after division is measured to be approximately 59 kHz. After inhalation, the aerosol flows out, and the frequency after division increases to approximately 61 kHz. The change in frequency can reflect inhalations, and the number of inhalations for the aerosol-generating substrate 20 can be obtained by counting the number of inhalations.

[0059] Typically, the number of puffs on the aerosol generating device 100 is constant and is about 15, and after 15 puffs on the aerosol-generating substrate 20, the aerosol-generating substrate 20 is completely consumed. If the heating element or base 11 continues to be heated, the aerosol-generating substrate 20 will run dry, resulting in the generation of harmful substances. Therefore, if the number of puffs on the aerosol-generating substrate 20 can be intelligently counted, the main control unit 17 can control the heating element or base 11 to stop heating after the counted number of puffs reaches a predetermined number, for example, 15, thereby preventing dry burning when the aerosol-generating substrate 20 is completely consumed and providing a certain level of intelligent safety.

[0060] As shown in FIG. 21, step 06 of determining whether the aerosol-generating substrate 20 is being inhaled based on a change in the signal parameter may further include step 061 of determining that the aerosol-generating substrate 20 is being inhaled when the signal parameter increases from an initial value when the substrate 11 is heating to a predetermined value.

[0061] In this case, the main control unit 17 determines that the aerosol-generating substrate 20 is inhaled when the signal parameter increases from an initial value when the substrate 11 is heating to a predetermined value.

[0062] Also, as shown in FIG. 21, step 06 of determining the number of puffs on the aerosol-generating substrate 20 based on the change in the signal parameter may be step 063 of recording the number of times the signal parameter increases from an initial value to a predetermined value when the substrate 11 is heating and then returns from the predetermined value to the initial value; The method may further include step 065 of setting the number of times to be the number of times to draw on the aerosol-generating substrate 20.

[0063] In this case, the main control unit 17 is further configured to record the number of times the signal parameter increases from an initial value to a predetermined value when the substrate 11 is heating and then returns from the predetermined value to the initial value, and to use this number as the number of inhalations on the aerosol-generating substrate 20.

[0064] As shown in Figure 22, in some embodiments, when there are at least two capacitors 1311 to be measured, and the at least two capacitors 1311 to be measured are arranged sequentially on the base 11 along the height direction of the base 11, and both are connected to the high-frequency oscillator circuit 133, the control method may further include step 07 of determining the loading depth of the aerosol-generating substrate 20 based on the position on the base 11 of the capacitor 1311 to be measured corresponding to any of the signal parameters when the difference between any of the signal parameters and the reference parameter is within a second predetermined range.

[0065] In this case, the main control unit 17 is further configured to determine the loading depth of the aerosol-generating substrate 20 based on the position on the substrate 11 of the measured capacitor 1311 corresponding to any of the signal parameters if the difference between any of the signal parameters and the reference parameter is within a second predetermined range.

[0066] 6(a), if the difference between the signal parameter corresponding to the upper capacitor 1311 to be measured (which is a pair of plates A and B) and the reference parameter is within a second predetermined range, and the difference between the signal parameter corresponding to the lower capacitor 1311 to be measured (which is a pair of plates C and D) and the reference parameter is within a first predetermined range, it is determined that the loading depth of the aerosol-generating substrate 20 is between plates A and B only, and does not reach between plates C and D. If the difference between the signal parameter corresponding to the upper capacitor 1311 to be measured (which is a pair of plates A and B) and the reference parameter is within the second predetermined range, and the difference between the signal parameter corresponding to the lower capacitor 1311 to be measured (which is a pair of plates C and D) and the reference parameter is also within the second predetermined range, it is determined that the loading depth of the aerosol-generating substrate 20 reaches between plates C and D.

[0067] 6(b), for example, if the difference between the signal parameter corresponding to the upper capacitor 1311 to be measured (which is a pair of plates A and C) and the reference parameter is within a second predetermined range, and the difference between the signal parameter corresponding to the lower capacitor 1311 to be measured (which is a pair of plates B and D) and the reference parameter is within a first predetermined range, it is determined that the loading depth of the aerosol-generating substrate 20 is between plates A and B and does not exceed plate B. If the difference between the signal parameter corresponding to the upper capacitor 1311 to be measured (which is a pair of plates A and C) and the reference parameter is within the second predetermined range, and the difference between the signal parameter corresponding to the lower capacitor 1311 to be measured (which is a pair of plates B and D) and the reference parameter is also within the second predetermined range, it is determined that the loading depth of the aerosol-generating substrate 20 is between plates B and D.

[0068] The greater the number of measurement target capacitors 1311 in the height direction of the base 11, the more accurate the determination of the loading depth of the aerosol-generating substrate 20. As shown in Figure 6(c), there are a total of four measurement target capacitors from top to bottom along the height direction of the base 11, which are called the first measurement target capacitor (formed by a pair of electrode plate A and electrode plate E), the second measurement target capacitor (formed by a pair of electrode plate B and electrode plate E), the third measurement target capacitor (formed by a pair of electrode plate C and electrode plate E), and the fourth measurement target capacitor (formed by a pair of electrode plate D and electrode plate E). If the difference between the signal parameter corresponding to the first capacitor to be measured and the reference parameter is within a second predetermined range, the difference between the signal parameter corresponding to the second capacitor to be measured and the reference parameter is within a second predetermined range, the difference between the signal parameter corresponding to the third capacitor to be measured and the reference parameter is within a second predetermined range, and the difference between the signal parameter corresponding to the fourth capacitor to be measured and the reference parameter is within a second predetermined range, the loading depth of the aerosol-generating substrate 20 is determined to be between plates D and E. If the difference between the signal parameter corresponding to the first capacitor to be measured and the reference parameter is within a second predetermined range, the difference between the signal parameter corresponding to the second capacitor to be measured and the reference parameter is within a second predetermined range, the difference between the signal parameter corresponding to the third capacitor to be measured and the reference parameter is within a second predetermined range, and the difference between the signal parameter corresponding to the fourth capacitor to be measured and the reference parameter is within a first predetermined range, the loading depth of the aerosol-generating substrate 20 is determined to be between plates C and D. If the difference between the signal parameter corresponding to the first measured capacitor and the reference parameter is within a second predetermined range, the difference between the signal parameter corresponding to the second measured capacitor and the reference parameter is within a second predetermined range, the difference between the signal parameter corresponding to the third measured capacitor and the reference parameter is within a first predetermined range, and the difference between the signal parameter corresponding to the fourth measured capacitor and the reference parameter is within a first predetermined range, it is determined that the loading depth of the aerosol-generating substrate 20 is between plate B and plate C.If the difference between the signal parameter corresponding to the first measured capacitor and the reference parameter is within a second predetermined range, the difference between the signal parameter corresponding to the second measured capacitor and the reference parameter is within a first predetermined range, the difference between the signal parameter corresponding to the third measured capacitor and the reference parameter is within a first predetermined range, and the difference between the signal parameter corresponding to the fourth measured capacitor and the reference parameter is within a first predetermined range, it is determined that the loading depth of the aerosol-generating substrate 20 is between plate A and plate B.

[0069] Furthermore, as shown in FIG. 22, in some embodiments, when the loading depth of the aerosol-generating substrate 20 decreases from deep to shallow, the control method may further include step 081 of controlling to stop heating of the substrate 11, or step 083 of controlling to heat the portion of the substrate 11 above a position corresponding to the loading depth and stop heating the portion below that position.

[0070] In this case, the main control unit 17 is configured to control the heating of the base 11 to stop when the loading depth of the aerosol-generating substrate 20 changes from deep to shallow. Alternatively, the main control unit 17 is configured to control the heating of the base 11 to stop when the loading depth of the aerosol-generating substrate 20 changes from deep to shallow.

[0071] When the loading depth of the aerosol-generating substrate 20 decreases from a deep position to a shallow position, the aerosol-generating substrate 20 loosens and moves upward, eventually indicating that it is completely withdrawn. If the substrate 11 is still heated when it is completely withdrawn, energy would be wasted. Therefore, energy can be saved by controlling the heating of the substrate 11 to stop. If the aerosol-generating substrate 20 is still loaded on the substrate 11 but moves slightly upward, energy would also be wasted if the entire substrate 11 were to continue to be heated. In this case, precise heating can be achieved by controlling the heating of the substrate 11 to be above the position corresponding to the loading depth, and the heating of the substrate 11 to stop.

[0072] As shown in FIG. 23, the present application further provides an aerosol generating device 100 including the control module 10 described in any of the above embodiments.

[0073] The aerosol-generating device 100 of the present application outputs a high-frequency analog signal via the high-frequency signal generating unit 13, converts the high-frequency analog signal into a measurable signal, measures signal parameters of the measurable signal, and finally determines whether an aerosol-generating substrate 20 is loaded on the base 11 based on the signal parameters and predetermined reference parameters. If it is intelligently determined that the aerosol-generating substrate 20 is loaded on the base 11, the aerosol-generating device 100 can be intelligently started to heat the aerosol-generating substrate 20; if it is intelligently determined that the aerosol-generating substrate 20 is not loaded on the base 11, the aerosol-generating device 100 can be intelligently stopped.

[0074] In the description herein, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. General references to such terms in the present specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples, and features of different embodiments or examples, described herein, if not mutually inconsistent.

[0075] Any process or method description described herein in a flowchart or other manner may be understood to represent a module, segment, or section containing one or more codes of executable instructions used to implement a specific logical function or process step, and the scope of the preferred embodiments of the present application includes further implementations. Multiple functions may be performed out of the order shown or discussed below, including in a substantially synchronous order or in a reverse order according to the functions involved, as would be understood by a person skilled in the art to which the embodiments of the present application pertain.

[0076] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and should not be construed as limiting the present application, and that those skilled in the art may make changes, amendments, substitutions and modifications to the above embodiments within the scope of the present application.

Claims

1. A control method applied to an aerosol generating device, comprising: outputting a high frequency analog signal by a high frequency oscillation circuit in a high frequency signal generating unit, the high frequency signal generating unit being provided on a substrate and including a capacitor to be measured connected to the high frequency oscillation circuit, the high frequency analog signal being used to represent the capacitance of the capacitor to be measured; converting the high frequency analog signal into a measurable signal; measuring a signal parameter of the measurable signal; determining whether an aerosol-generating substrate is loaded on said base based on said signal parameter and predetermined reference parameters.

2. determining whether an aerosol-generating substrate is loaded on the substrate based on the signal parameters and predetermined criteria parameters, determining that the aerosol-generating substrate is not loaded onto the substrate if the difference between the signal parameter and the reference parameter is within a first predetermined range; and determining that the aerosol-generating substrate is loaded onto the substrate if the difference between the signal parameter and the reference parameter is within a second predetermined range.

3. the measurement target capacitor includes at least two, the at least two measurement target capacitors being provided on the base in order along a height direction of the base, and both being connected to the high-frequency oscillation circuit; the step of outputting a high-frequency analog signal by the high-frequency oscillation circuit in the high-frequency signal generating unit includes a step of outputting, by the high-frequency oscillation circuit, a plurality of high-frequency analog signals used to respectively represent the capacitances of the at least two target capacitors; converting the high frequency analog signals into measurable signals includes converting a plurality of the high frequency analog signals into a plurality of the measurable signals; measuring signal parameters of the measurable signals includes measuring signal parameters of each of the measurable signals; determining whether an aerosol-generating substrate is loaded on the substrate based on the signal parameters and predetermined criteria parameters, 2. The method of claim 1, further comprising determining that the aerosol-generating substrate is loaded onto the substrate if a difference between any of the signal parameters and the reference parameters is within a second predetermined range.

4. 4. The method of claim 2 or 3, further comprising the step of controlling the substrate to heat if it is determined that the aerosol-generating substrate is loaded on the substrate.

5. 5. The method of claim 4, further comprising determining whether and how many puffs the aerosol-generating substrate is being puffed on based on a change in the signal parameter if the substrate is heating.

6. determining whether the aerosol-generating substrate is inhaled based on the change in the signal parameter, 6. The method of claim 5, further comprising determining that the aerosol-generating substrate is inhaled when the signal parameter increases from an initial value when the substrate is heating to a predetermined value.

7. determining the number of puffs on the aerosol-generating substrate based on the change in the signal parameter, recording the number of times the signal parameter increases from an initial value to a predetermined value as the substrate heats and then returns from the predetermined value to the initial value; The control method according to claim 5 , further comprising the step of setting the number of times as the number of times of inhalation on the aerosol-generating substrate.

8. The control method of claim 3, further comprising a step of determining the loading depth of the aerosol-generating substrate based on the position on the substrate of the measured capacitor corresponding to any of the signal parameters when the difference between any of the signal parameters and the reference parameter is within the second predetermined range.

9. When the loading depth of the aerosol-generating substrate changes from deep to shallow, the control method includes:

9. The control method according to claim 8, further comprising the step of controlling to stop heating of the substrate, or controlling to heat a portion of the substrate above a position corresponding to the loading depth and stop heating a portion of the substrate below the position.

10. A control module applied to an aerosol generating device, a substrate; a high frequency signal generating unit including a capacitor assembly to be measured and a high frequency oscillator circuit, wherein the capacitor assembly to be measured includes a capacitor to be measured, the capacitor to be measured is provided on the substrate and connected to the high frequency oscillator circuit, and the high frequency oscillator circuit is configured to output a high frequency analog signal representing the capacitance of the capacitor to be measured; a signal conversion unit connected to the high frequency oscillation circuit and configured to convert the high frequency analog signal into a measurable signal; a control module comprising: a main control unit connected to the signal conversion unit and configured to measure signal parameters of the measurable signal and determine whether an aerosol-generating substrate is loaded on the base based on the signal parameters and predetermined reference parameters.

11. The main control unit further comprises: determining that the aerosol-generating substrate is not loaded onto the substrate if the difference between the signal parameter and the reference parameter is within a first predetermined range; 11. The control module of claim 10, wherein the control module determines that the aerosol-generating substrate is loaded onto the substrate if the difference between the signal parameter and the reference parameter is within a second predetermined range.

12. the measurement target capacitor includes at least two, the at least two measurement target capacitors being provided on the base in order along a height direction of the base, and both being connected to the high-frequency oscillation circuit; the high-frequency oscillator circuit is further configured to output a plurality of high-frequency analog signals used to respectively represent the capacitances of the plurality of target capacitors; the signal converting unit is further configured to convert a plurality of the high frequency analog signals into a plurality of the measurable signals; 11. The control module of claim 10, wherein the main control unit is further configured to measure a signal parameter of each of the measurable signals and determine that the aerosol-generating substrate is loaded onto the base if a difference between any of the signal parameters and the reference parameter is within a second predetermined range.

13. 13. The control module of claim 11 or 12, wherein the main control unit is further configured to control heating of the substrate when it determines that the aerosol-generating substrate is loaded onto the substrate.

14. The main control unit further comprises:

14. The control module of claim 13, configured to determine whether and how many puffs the aerosol-generating substrate is being puffed on based on a change in the signal parameter when the substrate is heating.

15. The main control unit further comprises:

15. The control module of claim 14, configured to determine that the aerosol-generating substrate is inhaled when the signal parameter increases from an initial value when the substrate is heating to a predetermined value.

16. The main control unit further comprises: recording the number of times the signal parameter increases from an initial value to a predetermined value as the substrate heats and then returns from the predetermined value to the initial value; The control module of claim 14 , configured to set the number of draws on the aerosol-generating substrate.

17. The main control unit further comprises: The control module of claim 12, configured to determine the loading depth of the aerosol-generating substrate based on the position on the substrate of the measured capacitor corresponding to any of the signal parameters when the difference between any of the signal parameters and the reference parameter is within the second predetermined range.

18. The main control unit further comprises:

18. The control module of claim 17, configured to control heating of the substrate to stop when the loading depth of the aerosol-generating substrate changes from deep to shallow, or to control heating of a portion of the substrate above a position corresponding to the loading depth and stopping heating of a portion below that position.

19. the measurement target capacitor includes two conductive plates, the two plates being insulated and spaced apart from each other in a height direction of the base; The two electrodes are both annular electrodes surrounding the peripheral wall of the base, or 11. The control module according to claim 10, wherein one of the two plates is provided on an end surface of the base body, and the other is an annular plate surrounding a peripheral wall of the base body.

20. the measurement target capacitor is a plurality of capacitors, The two plates of each of the measurement target capacitors are independent of each other, and a plurality of the plates form pairs to form each of the measurement target capacitors, and the plates of each pair are formed in pairs sequentially along the height direction of the base, or the plates of each pair are formed in pairs alternately spaced apart along the height direction of the base, or 20. The control module of claim 19, wherein a plurality of the capacitors under test share one of the plates, and the other plate of each of the capacitors under test is provided on the base at intervals from one another.

21. 11. The control module of claim 10, wherein the capacitor to be measured includes two conductive plates, the two plates being distributed circumferentially around the base and spaced apart and insulated from each other.

22. The substrate is made of a non-conductive material, and the two electrode plates are attached to the substrate by laminating, coating, or plating, or The control module according to any one of claims 19 to 21, wherein the base is made of a conductive material, and the two electrode plates are partial structures separated from the base.

23. the measurement target capacitor includes two conductive plates, the two plates being provided on the base; The high frequency oscillator circuit is directly connected to the two plates of the capacitor under test, or 11. The control module of claim 10, wherein the capacitor assembly to be measured further includes at least one composite capacitor, the capacitor to be measured connected in series and / or parallel to the at least one composite capacitor, and the composite capacitor connected to the high frequency oscillator circuit such that the plate of at least one of the capacitors to be measured is connected to the high frequency oscillator circuit via the composite capacitor.

24. 11. The control module of claim 10, wherein the high-frequency oscillator circuit includes an integrated oscillator unit and an LC oscillator unit, an output pin of the integrated oscillator unit is connected to the signal conversion unit, a first capacitor end of the LC oscillator unit is connected to one plate of the capacitor under test, a second capacitor end of the LC oscillator unit is connected to the other plate of the capacitor under test, and the second capacitor end is grounded.

25. The high-frequency oscillation circuit further includes a capacitor C2, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C19, a capacitor C29, a resistor R11, a resistor R12, a resistor R6, and a resistor R17. The LC oscillation unit includes a capacitor C27, a capacitor C18, a capacitor C20, a capacitor C24, a resistor R13, and an inductor L2. A first pin of the integrated oscillation unit is grounded via the capacitor C15. One end of the resistor R6 is connected to the first pin. The second pin of the integrated oscillator unit is connected to the first capacitor end via a capacitor C18 and a resistor R13. The capacitor C27 has one end connected between the first capacitor end and the resistor R13 and the other end grounded. The inductor L2 has one end connected between the resistor R13 and the capacitor C18 and the other end grounded. The capacitors C20 and C24 are connected between the second pin and the capacitor C18. and then grounded; the third pin of the integrated oscillator unit is connected between the capacitor C20 and the capacitor C24; the fourth pin of the integrated oscillator unit is connected to the third measurement point through a resistor R17; one end of the capacitor C16 is connected between the fourth pin and the resistor R17 and the other end is grounded; the fifth pin of the integrated oscillator unit is grounded through a resistor R12 and a capacitor C29 in turn; the power supply is connected between the resistor R12 and the capacitor C29; and the fifth pin and the resistor R1 25. The control module of claim 24, wherein a second measurement point is provided between pins 6 and 7 of the integrated oscillator unit, pin 6 of the integrated oscillator unit is grounded, pin 7 of the integrated oscillator unit is grounded via a capacitor C19, the power supply is connected between pin 7 and capacitor C19, pin 8 of the integrated oscillator unit is grounded in turn via a resistor R11 and a capacitor C13, the power supply is connected between resistor R11 and capacitor C13, and resistor R11 is connected in parallel across capacitor C14.

26. The measurable signal includes a high-frequency digital signal, and the signal converting unit is configured to perform an analog-to-digital conversion process on the high-frequency analog signal to obtain the high-frequency digital signal; or The measurable signal includes a low-frequency analog signal, and the signal conversion unit is configured to perform a frequency conversion process on the high-frequency analog signal to obtain the low-frequency analog signal having a frequency lower than that of the high-frequency analog signal; or 11. The control module of claim 10, wherein the measurable signal includes a low-frequency digital signal, and the signal conversion unit is configured to perform a frequency conversion process and an analog-to-digital conversion process on the high-frequency analog signal to obtain the low-frequency digital signal having a frequency lower than that of the high-frequency analog signal.

27. The signal conversion unit includes: a comparator configured to receive the high-frequency analog signal generated by the high-frequency oscillator circuit and convert the high-frequency analog signal into a high-frequency digital signal; 11. The control module of claim 10, further comprising: a digital divider configured to perform a divide-by-10 operation on the high-frequency digital signal to obtain a low-frequency digital signal.

28. An aerosol generating device comprising a control module according to any one of claims 10 to 27.

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