Heating control method and device, equipment, storage medium and program product

Abstract

The invention is suitable for the technical field of aerosol generation, and provides a heating control method, device and equipment, a storage medium and a program product, and the method comprises the steps: carrying out the cooperative detection of the touch condition of a suction nozzle assembly in aerosol generation equipment and the airflow change condition through combining a contact detection circuit and an airflow detection circuit, and the detection accuracy of the inhalation action is improved, so that the false touch probability of the aerosol generation equipment is reduced.

Description

Technical Field

[0001] This application belongs to the field of aerosol generation technology, and particularly relates to heating control methods, devices, equipment, storage media and program products. Background Technology

[0002] Aerosol generating equipment heats the aerosol generating matrix, causing the heated aerosol generating matrix to atomize and generate aerosols, thereby providing users with a suction experience. Under normal circumstances, the aerosol generating equipment determines whether to execute the heating process based on the user's inhalation action received by the aerosol generating equipment.

[0003] In related technologies, an airflow detection sensor is installed in the aerosol generating device to detect changes in airflow at the vent of the nozzle assembly in the aerosol generating device, thereby determining whether the aerosol generating device has received a suction action.

[0004] However, due to the complex operating environment of aerosol generating equipment, if it is in a windy environment or during movement, there will be changes in airflow at the ventilation port of the nozzle assembly. This can also lead to accidental activation of the heating function of the aerosol generating equipment, resulting in a high probability of accidental activation and a poor user experience. Summary of the Invention

[0005] This application provides a heating control method, apparatus, device, storage medium, and program product. By combining a contact detection circuit and an airflow detection circuit, the contact status of the nozzle assembly and the airflow change in the aerosol generating device are detected in a coordinated manner, thereby improving the detection accuracy of the suction action and reducing the probability of accidental contact in the aerosol generating device.

[0006] In a first aspect, embodiments of this application provide a heating control method applied to an aerosol generating device, the aerosol generating device including a nozzle assembly, a contact detection circuit, and an airflow detection circuit, the method comprising: When the user comes into contact with the nozzle assembly, the change in the first capacitance output by the contact detection circuit is detected; When the change in the first capacitance meets the first capacitance change condition, a first level signal is generated. Upon receiving the user's inhalation operation, the second capacitance change output by the airflow detection circuit is detected. The airflow detection circuit is used to generate a capacitance change when a change in airflow is detected. When the change in the second capacitance meets the second capacitance change condition, a second level signal is generated; The aerosol generating device is activated for heating based on the first and second level signals.

[0007] In some embodiments, activating the aerosol generating device for heating based on the first level signal and the second level signal includes: When the first level signal and the second level signal are generated at the same time, the aerosol generating device is activated for heating; or... If the time difference between the generation times of the first level signal and the second level signal does not reach the preset time difference threshold, the aerosol generation device is started for heating.

[0008] In some embodiments, the first level signal and the second level signal correspond to the same level type.

[0009] In some embodiments, the aerosol generating device is provided with a plurality of electrode plates; The step of detecting the change in first capacitance output by the contact detection circuit when the user comes into contact with the nozzle assembly includes: When the aerosol generating device is powered on and the user is in contact with the nozzle assembly, the change in the first capacitance output by the plurality of electrode plates is detected.

[0010] In some embodiments, the contact detection circuit includes a first pin; The step of generating a first level signal when the first capacitance change meets the first capacitance change condition includes: If the change in the first capacitance corresponding to the electrode plate reaches a first change threshold, it is determined that the user is in contact with the nozzle assembly. When the number of electrode plates corresponding to the first change in capacitance reaches the first change threshold reaches a preset number threshold, the first pin is controlled to output the first level signal.

[0011] In some embodiments, the contact detection circuit includes a second pin; The method further includes: When the aerosol generating device is in the off state, a first preset signal is input to the second pin. The first preset signal is used to control the contact detection circuit to enter a sleep state, wherein the contact detection circuit does not undergo capacitance change in the sleep state.

[0012] In some embodiments, the airflow detection circuit includes a third pin; The step of generating a second level signal when the second capacitance change meets the second capacitance change condition includes: When the change in the second capacitance reaches the second change threshold, the second level signal is output through the third pin.

[0013] In some embodiments, the aerosol generating device includes a signal processing circuit and an atomization execution circuit, wherein the signal processing circuit is provided with a first output channel and a second output channel; The step of activating the aerosol generating device for heating based on the first level signal and the second level signal includes: Based on the first level signal and the second level signal, the first output channel is controlled to output a third level signal to the atomization execution circuit; or... Based on the first level signal and the second level signal, the second output channel is controlled to output a third level signal to the atomization execution circuit, and the third level signal is used to instruct the atomization execution circuit to perform heating.

[0014] In some embodiments, the method further includes: If the level of the first level signal changes, the aerosol generating device is controlled to stop heating; or... When there is a level change in the second level signal, the aerosol generating device is controlled to stop heating.

[0015] In some embodiments, the method further includes: If there is a signal abnormality in the first level signal or the second level signal, and the duration of the signal abnormality reaches a preset duration threshold, a first indication message is triggered. The first indication message is used to indicate that there is a fault in the aerosol generating device.

[0016] Secondly, embodiments of this application provide an aerosol generating device, which includes a nozzle assembly, a contact detection circuit, an airflow detection circuit, and a signal processing circuit. The contact detection circuit is used to detect a first capacitance change when the user comes into contact with the nozzle assembly. The contact detection circuit is used to detect a capacitance change when the user and the nozzle assembly come into contact. When the first capacitance change meets the first capacitance change condition, a first level signal is generated. The airflow detection circuit is used to detect a second capacitance change output by the airflow detection circuit when the user's inhalation operation is received. The airflow detection circuit is used to generate a capacitance change when a change in airflow is detected. When the second capacitance change meets the second capacitance change condition, a second level signal is generated. The signal processing circuit is used to start the aerosol generating device for heating based on the first level signal and the second level signal.

[0017] In some embodiments, the aerosol generating device is provided with a plurality of electrode plates, which are arranged in a ring on the inner wall of the nozzle assembly to form a capacitive touch array. The capacitive touch array is used to generate a capacitance change when the user makes contact with the nozzle assembly.

[0018] Thirdly, embodiments of this application provide a heating control device, including: The detection module is used to detect the first capacitance change output by the contact detection circuit when the user comes into contact with the nozzle assembly. The contact detection circuit is used to detect the capacitance change when the user and the nozzle assembly come into contact. The generation module is used to generate a first level signal when the first capacitance change meets the first capacitance change condition. The detection module is also used to detect the second capacitance change output by the airflow detection circuit when the user's inhalation operation is received. The airflow detection circuit is used to generate a capacitance change when a change in airflow is detected. The generation module is used to generate a second level signal when the second capacitance change meets the second capacitance change condition. The start-up module is used to start the aerosol generating device for heating based on the first level signal and the second level signal.

[0019] Fourthly, embodiments of this application provide a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the heating control method described in any one of the first aspects above.

[0020] Fifthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the heating control method described in any one of the first aspects.

[0021] Sixthly, embodiments of this application provide a computer program product that, when run on a computer device, causes the computer device to execute the heating control method described in any one of the first aspects.

[0022] It is understood that the beneficial effects of the second to sixth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here.

[0023] The beneficial effects of the technical solutions provided in this application include at least the following: When a user comes into contact with the nozzle assembly, the first capacitance change output by the contact detection circuit is collected. When an air intake operation is received, the second capacitance change output by the airflow detection circuit is collected. Thus, when the first capacitance change meets the first capacitance change condition, a first level signal is output, and when the second capacitance change meets the second capacitance change condition, a second level signal is output. The first and second level signals are combined to start the aerosol generating device to perform the heating function. In other words, by combining the contact detection circuit and the airflow detection circuit, the contact situation and airflow change of the nozzle assembly in the aerosol generating device are detected in a coordinated manner, improving the detection accuracy of the air intake action and reducing the probability of false contact of the aerosol generating device. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a flowchart of a heating control method provided in an embodiment of this application; Figure 2 This is a flowchart of a heating control method provided in an embodiment of this application; Figure 3 This is a schematic diagram of the nozzle part structure provided in an embodiment of this application; Figure 4 This is a schematic diagram of the nozzle part structure provided in an embodiment of this application; Figure 5 This is a schematic diagram of the internal structure of an aerosol generating device provided in an embodiment of this application; Figure 6 This is a schematic diagram of the unfolded electrode sheet provided in one embodiment of this application; Figure 7 This is a schematic diagram of a contact detection circuit provided in an embodiment of this application; Figure 8 This is a schematic diagram of a contact detection circuit provided in an embodiment of this application; Figure 9 This is a schematic diagram of an airflow detection circuit provided in an embodiment of this application; Figure 10 This is a schematic diagram of the main control circuit provided in an embodiment of this application; Figure 11 This is a schematic diagram of an atomization execution circuit provided in an embodiment of this application; Figure 12 This is a schematic diagram of the internal structure of an airflow detection circuit provided in an embodiment of this application; Figure 13 This is a schematic diagram of the first capacitance change provided in an embodiment of this application; Figure 14 This is a schematic diagram illustrating the determination of the first capacitance change according to an embodiment of this application; Figure 15 This is a schematic diagram of the heating control device provided in the embodiments of this application; Figure 16 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

[0026] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0027] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0028] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0030] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0032] As the demand for aerosol generation equipment increases, so too does the need for improved product safety and user experience. Typically, aerosol generation equipment determines whether to activate the heating function by detecting the presence of an intake operation. In other words, when an intake operation is detected, the aerosol generation equipment will activate the heating function. Related technologies usually employ a single detection method: a microphone assembly is installed at the nozzle of the aerosol generation equipment. When an intake operation is received, the microphone assembly outputs a high-level signal; when no intake operation is received, the microphone assembly outputs a low-level signal. The high and low level signals are used to determine whether an intake operation has been received. However, because the microphone assembly is susceptible to penetration from the aerosol generation matrix or contamination by condensate, its sensitivity may decrease, or it may malfunction, leading to a reduction in the accuracy of the microphone assembly's output signal.

[0033] Based on this, this application provides a heating control method. When a user comes into contact with the nozzle assembly, a first capacitance change is collected from the contact detection circuit. When an inhalation operation is received, a second capacitance change is collected from the airflow detection circuit. A first level signal is output when the first capacitance change meets the first capacitance change condition, and a second level signal is output when the second capacitance change meets the second capacitance change condition. The first and second level signals are combined to start the aerosol generating device to perform the heating function. In other words, by combining the contact detection circuit and the airflow detection circuit, the contact situation and airflow change of the nozzle assembly in the aerosol generating device are detected collaboratively, improving the detection accuracy of the inhalation action and reducing the probability of false contact of the aerosol generating device.

[0034] It should be noted that this application may display prompt interfaces, pop-ups, or output voice prompts before and during the collection of user data. These prompt interfaces, pop-ups, or voice prompts are used to inform the user that their data is being collected. This ensures that the application only begins the steps for collecting user data after receiving confirmation from the user regarding the prompt interface or pop-up; otherwise (i.e., without user confirmation), the steps for collecting user data end, meaning no user data is collected. In other words, all user data collected in this application is collected with the user's consent and authorization, and the collection, use, and processing of related user data must comply with the relevant laws, regulations, and standards of the relevant regions.

[0035] The heating control method provided in the embodiments of this application will be described in detail below. For illustrative purposes, please refer to the following. Figure 1 The diagram illustrates a flowchart of a heating control method provided in an exemplary embodiment of this application, which includes steps 110 to 150.

[0036] Step 110: When the user comes into contact with the nozzle assembly, the change in the first capacitance output by the contact detection circuit is detected.

[0037] The aerosol generating device includes a nozzle assembly, a contact detection circuit, and an airflow detection circuit. The contact detection circuit is used to detect capacitance changes when the user comes into contact with the nozzle assembly.

[0038] To illustrate, after the aerosol generating device is powered on, the battery module provides electrical energy to the heating element in the aerosol generating device, causing it to heat up. After the heating element heats up, it transfers the heat to the aerosol generating matrix, causing the aerosol generating matrix in the aerosol generating device to reach its boiling point and atomize, generating a suspended aerosol for the user to inhale. The process of generating a suspended aerosol is the atomization process.

[0039] To illustrate, the nozzle assembly refers to the component in an aerosol generating device that comes into direct contact with the user (usually their lips). That is, the user can use the nozzle assembly to inhale air into the aerosol generating device, and the user can also use the nozzle assembly to draw in suspended aerosols.

[0040] The schematic contact detection circuit, also known as the lip-capacitive module (a physical hardware module), consists of an electrode plate and another electrode inside the nozzle assembly, forming a parallel-plate capacitor. When the user's lips touch the nozzle assembly, the lips act as a conductor and enter the electric field between the parallel-plate capacitors, causing a change in capacitance (i.e., the first capacitance change).

[0041] Step 120: If the change in the first capacitance meets the first capacitance change condition, generate a first level signal.

[0042] Indicatively, when the change in the first capacitance reaches a preset threshold, the contact detection circuit outputs an electrical signal, triggering the aerosol generating device to perform the heating function.

[0043] In one implementation, a first change threshold is preset as a first capacitance change condition. When the first capacitance change reaches the first change threshold, the contact detection circuit outputs a first level signal to the main control circuit.

[0044] In one implementation, a range of change is preset as the first capacitance change condition. If the change in the first capacitance is within the preset range, the contact detection circuit outputs a first level signal to the main control circuit.

[0045] In one implementation, a preset duration of change is used as the first capacitance change condition. If the duration of the first capacitance change reaches the preset duration of change, the contact detection circuit outputs a first level signal to the main control circuit.

[0046] Optionally, the first level signal can be a high-level signal or a low-level signal; this embodiment of the application does not limit this. In this embodiment, the first level signal is a predefined signal type, such as a high-level signal.

[0047] Indicatively, the main control circuit is used to control the operating status of the aerosol generating equipment, such as: powering on, starting heating, stopping heating, starting other functional components (e.g., indicator lights, vibration components, etc.), turning off other functional components, and powering off.

[0048] Step 130: Upon receiving a user's inhalation operation, detect the change in the second capacitance output by the airflow detection circuit.

[0049] The airflow detection circuit is used to detect a change in capacitance when a change in airflow is detected.

[0050] The airflow detection circuit, also known as a silicon microphone sensor module, is used to detect changes in airflow inside the nozzle assembly. This circuit incorporates a microelectromechanical systems (MEMS) sensor. When the user inhales, air is drawn out of the nozzle assembly, creating a negative pressure (meaning the air pressure inside the nozzle assembly is lower than the external atmospheric pressure). This negative pressure causes the MEMS diaphragm inside the airflow detection circuit to deform towards the downward-facing electrode, changing the distance between the electrodes and resulting in a change in capacitance (i.e., a second capacitance change). When this second capacitance change reaches a preset threshold, the airflow detection circuit outputs an electrical signal, triggering the aerosol generation device to perform its heating function.

[0051] Indicatively, when the nozzle assembly receives lip contact, the contact detection circuit generates a first capacitance change. When the suction operation is received, the airflow detection circuit generates a second capacitance change. At this time, the first capacitance change is continuously output. That is, while the airflow detection circuit generates the second capacitance change, the contact detection circuit continuously generates the first capacitance change.

[0052] Step 140: If the change in the second capacitance meets the conditions for the change in the second capacitance, a second level signal is generated.

[0053] Indicatively, a second change threshold is preset as the second capacitance change condition. When the second capacitance change reaches the second change threshold, the airflow detection circuit outputs a second level signal to the main control circuit.

[0054] In one implementation, a range of changes is preset as the condition for the change of the second capacitor. If the change of the second capacitor is within the preset range of changes, the airflow detection circuit outputs a second level signal to the main control circuit.

[0055] In one implementation, a preset duration of change is used as a condition for the change of the second capacitor. If the duration of the change in the second capacitor reaches the preset duration of change, the airflow detection circuit outputs a second level signal to the main control circuit.

[0056] Optionally, the second level signal can be a high-level signal or a low-level signal; this embodiment of the application does not limit this. In this embodiment, the second level signal is a predefined signal type, such as a high-level signal.

[0057] Optionally, the first level signal and the second level signal are level signals of the same level type, for example, both the first level signal and the second level signal are high level signals; or, the first level signal and the second level signal are level signals of different level types, for example, the first level signal is a high level signal and the second level signal is a low level signal.

[0058] Step 150: Start the aerosol generating device for heating based on the first level signal and the second level signal.

[0059] To illustrate, if the main control circuit receives a first-level signal and a second-level signal, it controls the aerosol generating device to heat up.

[0060] Indicatively, the first level signal and the second level signal arrive at the main control circuit simultaneously, or there is a certain time difference between the arrival times of the first level signal and the second level signal at the main control circuit.

[0061] To illustrate, if the main control circuit receives only one of the first level signal or the second level signal, heating will not be performed.

[0062] To illustrate, if the main control circuit does not receive the first level signal and the second level signal, heating will not occur.

[0063] In this embodiment, when the airflow detection circuit no longer detects an inhalation operation, it does not output a second-level signal, or it converts the second-level signal from a high-level signal to a fourth-level signal (e.g., from a high-level signal to a low-level signal). Then, the contact detection circuit detects that the user's lips have stopped contacting the lip assembly. At this time, the contact detection circuit does not output a first-level signal, or it converts the first-level signal from a high-level signal to a fourth-level signal (e.g., from a high-level signal to a low-level signal). At this time, the main control circuit turns off pulse width modulation (PWM).

[0064] The heating control method provided in this application collects a first capacitance change output by the contact detection circuit when the user comes into contact with the nozzle assembly, and collects a second capacitance change output by the airflow detection circuit when an inhalation operation is received. A first level signal is output when the first capacitance change meets the first capacitance change condition, and a second level signal is output when the second capacitance change meets the second capacitance change condition. The first and second level signals are combined to activate the aerosol generating device to perform the heating function. In other words, by combining the contact detection circuit and the airflow detection circuit, the contact and airflow changes of the nozzle assembly in the aerosol generating device are detected collaboratively, improving the accuracy of the inhalation action detection and reducing the probability of accidental contact with the aerosol generating device.

[0065] The following is a detailed explanation of the process for determining the change in target capacitance. Please refer to the illustrative example. Figure 2 It illustrates a flowchart of a heating control method provided in an exemplary embodiment of this application, that is, step 110 includes step 111, as follows: Figure 2 As shown, the method includes the following steps.

[0066] Step 111: With the aerosol generating device powered on and the user in contact with the nozzle assembly, detect the change in the first capacitance output by the multiple electrode plates.

[0067] The aerosol generating device is equipped with electrode plates, which include multiple contacts.

[0068] As an illustration, when the aerosol generating equipment is powered on, the contact detection circuit is pre-set to detect the detection period (e.g., 280 milliseconds (ms)) to periodically detect whether there is a change in capacitance.

[0069] In a schematic representation, the nozzle assembly of the aerosol generating device is equipped with an electrode plate. When the user's lips come into contact with the nozzle assembly, the human body capacitance and the electrode couple, causing a change in the capacitance of the electrode plate. The amount of capacitance change is taken as the first capacitance change.

[0070] In this embodiment, the electrode sheet is provided with four contacts, which are distributed in pairs on both sides of the nozzle assembly. When each contact detects contact with the user's lips, the capacitance corresponding to that contact changes, and the amount of change in capacitance is taken as the first capacitance change corresponding to that contact.

[0071] Optionally, each contact may output the first capacitance change, or some contacts may output the first capacitance change while others may not.

[0072] Optionally, for multiple contacts that output the change in the first capacitance, the changes in the first capacitance corresponding to the multiple contacts may be the same or different.

[0073] Step 120: If the change in the first capacitance meets the first capacitance change condition, generate a first level signal.

[0074] In some embodiments, the contact detection circuit includes a first pin; when the change in the first capacitance corresponding to the contact point reaches a first change threshold, it is determined that the user has made contact with the nozzle assembly; when the number of contacts corresponding to the first change threshold reaches a preset number threshold, the first pin is controlled to output a first level signal.

[0075] Indicatively, a threshold value for capacitance change is preset, for example, 30. When the first capacitance change value corresponding to a contact reaches 30, it is determined that the first capacitance change value corresponding to that contact has reached the preset first change value threshold value.

[0076] Indicatively, when the number of contacts whose first capacitance change reaches a preset first change threshold is greater than a preset number threshold (e.g., 3), the first pin in the control contact detection circuit outputs a high-level signal (signal 1) as the first level signal.

[0077] In this embodiment, when the capacitance change of any three contacts is detected to be greater than 30 at the same time, the contact detection circuit is controlled to output a high-level signal.

[0078] In some embodiments, the contact detection circuit includes a second pin; when the aerosol generating device is in a powered-off state, a first preset signal is input to the second pin, the first preset signal being used to control the contact detection circuit to enter a sleep state, wherein the contact detection circuit does not undergo capacitance change in the sleep state.

[0079] Indicatively, if the aerosol generating device is in the off state, the main control circuit inputs a first preset signal to the second pin. When the contact detection circuit receives the first preset signal, the contact detection circuit enters a sleep state. At this time, if the user's lips come into contact with the nozzle assembly, the contact detection circuit will not generate a first capacitance change.

[0080] Step 130: Upon receiving a user's inhalation operation, detect the change in the second capacitance output by the airflow detection circuit.

[0081] The airflow detection circuit is used to detect a change in capacitance when a change in airflow is detected.

[0082] Indicatively, when the nozzle assembly receives a suction operation, the suction operation causes a negative pressure change inside the nozzle assembly, resulting in a capacitance change. Therefore, this capacitance change is used as the second capacitance change.

[0083] Step 140: If the change in the second capacitance meets the conditions for the change in the second capacitance, a second level signal is generated.

[0084] In some embodiments, the airflow detection circuit includes a third pin; when the second capacitance change reaches a second change threshold, a second level signal is output through the third pin.

[0085] Indicatively, a second change threshold is preset, for example, a threshold threshold of 3.1%. When the second capacitance change reaches 3.1%, a second level signal is output through the third pin of the airflow detection circuit.

[0086] Step 150: Start the aerosol generating device for heating based on the first level signal and the second level signal.

[0087] In some embodiments, the aerosol generating device includes an atomization execution circuit, which has a first output channel and a second output channel; a third level signal is output to the first output channel based on a first level signal and a second level signal; or, a third level signal is output to the second output channel for atomization based on a first level signal and a second level signal, the third level signal being used to instruct the atomization execution circuit to perform heating.

[0088] As an illustration, the aerosol generating device also includes an atomization execution circuit, which controls whether the aerosol generating device performs the heating function.

[0089] To illustrate, the atomization execution circuit is equipped with a field-effect transistor (P-Channel Metal-Oxide-Semiconductor, PMOS). When the PMOS transistor is turned on, the heating function corresponding to the aerosol generation device is realized through the atomization execution circuit.

[0090] In this circuit, the PMOS transistor is turned on when the gate (G) voltage is lower than the source (S) voltage by a certain threshold. In digital circuits, the gate voltage is usually determined by a control signal (e.g., PWM_OUT), which controls the PMOS transistor's on and off states by changing its high or low levels.

[0091] In this embodiment, PMOS transistor 1 and PMOS transistor 2 are provided as the first output channel and the second output channel, respectively. When the main control circuit receives the first level signal and the second level signal, it outputs the third level signal to PMOS transistor 1 and / or PMOS transistor 2, so that PWM_OUT1=1 and / or PWM_OUT2=1. At this time, PMOS transistor 1 and / or PMOS transistor 2 are turned on, and the atomization execution circuit starts the heating function.

[0092] Specifically, if the third level signal is a high level signal, then PWM_OUT1=1 and / or PWM_OUT2=1; if the third level signal is a low level signal, then PWM_OUT1=0 and / or PWM_OUT2=0.

[0093] In some embodiments, when there is a level change in the first level signal, the aerosol generating device is controlled to stop heating; or, when there is a level change in the second level signal, the aerosol generating device is controlled to stop heating.

[0094] To illustrate, if the target level signal changes, for example, from a high level signal to a low level signal, it means that the change in the target capacitance does not meet the preset threshold for the change. In this case, the aerosol generating device is controlled to stop heating.

[0095] Indicatively, the abnormal behavior of the target level signal can be realized as the level signal continuously changing within a certain time range, for example, changing from a high level signal to a low level signal and then back to a high level signal. At this time, the first indication information is triggered (for example, the first indicator light is lit). The first indication information indicates that there is a fault in the aerosol generating equipment, and the aerosol generating equipment cannot perform the heating function at this time.

[0096] In some embodiments, if there is a signal abnormality in the first level signal or the second level signal, and the duration of the signal abnormality reaches a preset duration threshold, a first indication message is triggered. The first indication message is used to indicate that there is a fault in the aerosol generating device.

[0097] In this embodiment, in standby mode, the airflow sensor works intermittently (e.g., wakes up 10ms per second), the contact sensor maintains low-power detection, and after triggering, the sampling rate is dynamically adjusted according to the usage frequency, and enters sleep mode during inactive periods.

[0098] Indicatively, an abnormal signal behavior of the first or second level signal can be achieved by the continuous change of the level signal within a certain time range, such as changing from a high level signal to a low level signal and then back to a high level signal. At this time, the first indication information is triggered (e.g., the first indicator light is lit). The first indication information indicates that there is a fault in the aerosol generating equipment, and the aerosol generating equipment cannot perform the heating function at this time.

[0099] In this embodiment, in standby mode, the airflow sensor works intermittently (e.g., wakes up 10ms per second), the contact sensor maintains low-power detection, and after triggering, the sampling rate is dynamically adjusted according to the usage frequency, and enters sleep mode during inactive periods.

[0100] Optionally, the first change threshold and the second change threshold are the same threshold, or the first change threshold and the second change threshold are different thresholds.

[0101] In some embodiments, if there is a signal anomaly in the target level signal and the duration of the signal anomaly reaches a preset duration threshold, a first indication message is triggered. The first indication message is used to indicate that there is a fault in the aerosol generating device.

[0102] The heating control method provided in this application collects a first capacitance change output by the contact detection circuit when the user comes into contact with the nozzle assembly, and collects a second capacitance change output by the airflow detection circuit when an inhalation operation is received. A first level signal is output when the first capacitance change meets the first capacitance change condition, and a second level signal is output when the second capacitance change meets the second capacitance change condition. The first and second level signals are combined to activate the aerosol generating device to perform the heating function. In other words, by combining the contact detection circuit and the airflow detection circuit, the contact and airflow changes of the nozzle assembly in the aerosol generating device are detected collaboratively, improving the accuracy of the inhalation action detection and reducing the probability of accidental contact with the aerosol generating device.

[0103] The hardware structure of the aerosol generation equipment will be described in detail below.

[0104] In some embodiments, the aerosol generating device includes a nozzle assembly, a contact detection circuit, an airflow detection circuit, and a signal processing circuit. The contact detection circuit detects a first capacitance change when a user comes into contact with the nozzle assembly; the contact detection circuit generates a first level signal when the first capacitance change meets a first capacitance change condition. The airflow detection circuit detects a second capacitance change when a user inhales; the airflow detection circuit generates a capacitance change when a change in airflow is detected; the second capacitance change generates a second level signal when the second capacitance change meets a second capacitance change condition. The signal processing circuit activates the aerosol generating device for heating based on the first and second level signals.

[0105] In some embodiments, the aerosol generating device includes electrode plates arranged in a ring on the inner wall of the nozzle assembly to form a capacitive touch array, which is used to generate capacitance changes when contact occurs between the user and the nozzle assembly.

[0106] In some embodiments, a nozzle assembly is disposed at the nozzle portion of an aerosol generating device; a contact detection circuit is disposed near the nozzle portion of the aerosol generating device and is electrically connected to the nozzle assembly; and an airflow detection circuit is disposed on a printed circuit board in the aerosol generating device, the airflow detection circuit having a silicon microphone hole connected to an air passage in the aerosol generating device.

[0107] This is illustrative; please refer to it. Figure 3 and Figure 4 , Figure 3 and Figure 4 A schematic diagram of the suction nozzle structure provided in an exemplary embodiment of this application is shown, as follows: Figure 3 As shown, the green part is the suction nozzle assembly. Figure 3 The raised part in the middle is the nozzle part, which is made of Figure 3 As can be seen, the nozzle assembly is located at the nozzle part, the blue part is the contact detection circuit, and there is an electrical connection between the blue part and the green part.

[0108] Continue to refer to Figure 4 , Figure 4 The raised part has a nozzle shell (shown in a semi-transparent form) to form the nozzle area, and the user's lips can contact and fit the nozzle shell.

[0109] This is just an illustration; please continue to refer to it. Figure 5 It shows a schematic diagram of the internal structure of an aerosol generating device provided in an exemplary embodiment of this application, such as... Figure 5 As shown, the nozzle part 501 and the device base 502 are currently displayed.

[0110] In some embodiments, the aerosol generating device includes electrode plates arranged in a ring on the inner wall of the nozzle assembly to form a capacitive touch array, which is used to generate capacitance changes when contact occurs between the user and the nozzle assembly.

[0111] Indicatively, the contact detection circuit includes irregularly shaped electrode sheets, which are embedded in the nozzle assembly in a ring-like manner to form a ring-shaped electrode array on the inner surface of the nozzle assembly.

[0112] This is illustrative; please refer to it. Figures 6 to 7 , Figure 6 This illustration shows a schematic diagram of the unfolded electrode sheet provided in an exemplary embodiment of this application. Figure 7 A schematic diagram of a contact detection circuit provided in an exemplary embodiment of this application is shown, as follows: Figure 6 As shown, an irregularly shaped electrode sheet is currently displayed, and there is an electrical connection between the electrode sheet and the sensor (located in the left area) in the contact detection circuit.

[0113] The irregularly shaped electrode sheet includes four raised areas, each of which is a contact area. When one of the contact points detects contact with the user's lips, the capacitance corresponding to that contact point changes, and the amount of change in capacitance is taken as the first capacitance change corresponding to that contact point.

[0114] Continue to refer to Figure 3 and Figure 7 ,from Figure 3 and Figure 7 As can be seen, the irregularly shaped electrode sheet is embedded in the inner surface of the nozzle assembly in a ring manner.

[0115] In some embodiments, when the aerosol generating device is powered on and the user comes into contact with the nozzle assembly, the change in first capacitance output by multiple contacts in the detection electrode sheet is measured.

[0116] In some embodiments, when the change in the first capacitance corresponding to the contact point reaches a first change threshold, it is determined that there is a contact operation in the nozzle assembly; when the number of electrode plates corresponding to the first change in charge reaching the first change threshold reaches a preset number threshold, the first pin is controlled to output a target level signal.

[0117] This is illustrative; please refer to it. Figure 8 It illustrates a schematic diagram of a contact detection circuit provided in an exemplary embodiment of this application, such as... Figure 8 As shown, when the aerosol generating device is powered on, the touch detection circuit detects the capacitance change at 280ms intervals. Its power consumption is 4uA. When the lips touch the surface of the suction nozzle, the human body capacitance is coupled with the electrode, causing the electrode capacitance to change. After the touch IC detects this change, it outputs a high-level signal (i.e., SCK=1) to the microcontroller through the SCK pin, triggering the aerosol generating device to perform the heating function.

[0118] This is illustrative; please refer to it. Figure 9 It shows a schematic diagram of an airflow detection circuit provided in an exemplary embodiment of this application, such as Figure 9 As shown, when a user inhales, the negative pressure inside the nozzle changes, and the capacitance of C4 in the airflow detection circuit changes. When the ASIC (Application-Specific Integrated Circuit) detects that the capacitance value changes by more than 3.1% (a pre-set threshold for the amount of change), the GATE pin will output a high level (MIC_WKUP=1) and send it to the microcontroller, triggering the aerosol generating device to perform the heating function.

[0119] This is illustrative; please refer to it. Figure 10 It shows a schematic diagram of the main control circuit provided in an exemplary embodiment of this application, such as Figure 10 As shown, this displays the circuit structure of the MCU and the screen power supply circuit. The main control circuit uses a low-power MCU, integrating an ADC and comparator, and externally storing user preference data in an EEPROM.

[0120] This is illustrative; please refer to it. Figure 11 It shows a schematic diagram of an atomization execution circuit provided in an exemplary embodiment of this application, such as Figure 11 As shown, the heating function is triggered when Q1 and / or Q2 receive a third-level signal.

[0121] This is illustrative; please refer to it. Figure 12 This illustrates a schematic diagram of the internal structure of an airflow detection circuit provided in an exemplary embodiment of this application, as shown below. Figure 12As shown, the airflow detection circuit has a metal casing and contains an upper capacitor plate, a lower capacitor plate (implemented as a complete silicon diaphragm for waterproofing and oil resistance), solder pads, an ASIC, a printed circuit board (PCBA board), and a MEMS sensor. The MEMS sensor is placed on the PCBA board near the air inlet and is encapsulated in a dustproof and moisture-proof manner.

[0122] In this embodiment, the aerosol generating device consists of a mouthpiece assembly, a flexible screen, an atomizer, and a main unit. The mouthpiece assembly has a built-in annular electrode plate with a touch IC, which is connected to the FPC pad of the flexible screen via a contact connector and then connected to the main board via the flexible screen PCB. The atomizer includes a liquid reservoir, an atomizing base, and a heating element. The main unit contains a main board (with a silicon microphone sensor on the main board, covered by a metal cover, and connected to the airway by a silicone sleeve) and a battery cell.

[0123] This is illustrative; please refer to it. Figure 13 It illustrates a schematic diagram of the first capacitance change provided in an exemplary embodiment of this application, such as... Figure 13 As shown, the current display shows the waveform from before the lip touches the nozzle assembly to after the touch ends. It can be seen from the figure that when the lip touches the nozzle assembly, the capacitance change is relatively large, close to 50, while when the lip does not touch the nozzle assembly, the capacitance change is close to 0.

[0124] This is illustrative; please refer to it. Figure 14 This illustrates a schematic diagram of determining the first capacitance change provided in an exemplary embodiment of this application, such as... Figure 14 As shown, combined with Figure 13 The waveform diagram shown indicates that a first threshold value for the change in capacitance has been set, for example... Figure 14 The threshold value of 30 indicates that the lip and the nozzle assembly are in contact when the change in the first capacitance reaches 30. If the change does not reach 30, the lip and the nozzle assembly are not in contact. The higher the threshold value is set, the higher the sensitivity of the contact detection and the easier it is to identify contact. Conversely, the lower the threshold value is set, the lower the sensitivity and the less likely it is to identify contact.

[0125] The heating control method provided in this application collects a first capacitance change output by the contact detection circuit when the user comes into contact with the nozzle assembly, and collects a second capacitance change output by the airflow detection circuit when an inhalation operation is received. A first level signal is output when the first capacitance change meets the first capacitance change condition, and a second level signal is output when the second capacitance change meets the second capacitance change condition. The first and second level signals are combined to activate the aerosol generating device to perform the heating function. In other words, by combining the contact detection circuit and the airflow detection circuit, the contact and airflow changes of the nozzle assembly in the aerosol generating device are detected collaboratively, improving the accuracy of the inhalation action detection and reducing the probability of accidental contact with the aerosol generating device.

[0126] The heating control method provided in the embodiments of this application will be described in detail below as an illustration.

[0127] S11, Begin.

[0128] S12, System initialization.

[0129] During the initialization phase, the loading mode setting function is implemented.

[0130] S13, the user puts the mouthpiece into their mouth, and their lips connect to the capacitor electrode, generating the first capacitance change.

[0131] S14, when the change in the first capacitor reaches the threshold of the change in the first capacitor, the first level signal is output to the main control circuit.

[0132] S15, an intake operation is detected, and a second capacitance change is generated.

[0133] S16, when the change in the second capacitor reaches the threshold of the change in the second capacitor, output a second level signal to the main control circuit.

[0134] S17: When the main control circuit receives the first level signal and the second level signal, the heating function is started.

[0135] If a high-level signal is output, the heating function is executed.

[0136] S18, after inhalation stops, the signal level changes from the second level to the fourth level.

[0137] S19, after the lips leave the mouthpiece assembly side, the signal level changes from the first level signal to the fifth level signal.

[0138] S20, PWM off.

[0139] The heating control method provided in this application collects a first capacitance change output by the contact detection circuit when the user comes into contact with the nozzle assembly, and collects a second capacitance change output by the airflow detection circuit when an inhalation operation is received. A first level signal is output when the first capacitance change meets the first capacitance change condition, and a second level signal is output when the second capacitance change meets the second capacitance change condition. The first and second level signals are combined to activate the aerosol generating device to perform the heating function. In other words, by combining the contact detection circuit and the airflow detection circuit, the contact and airflow changes of the nozzle assembly in the aerosol generating device are detected collaboratively, improving the accuracy of the inhalation action detection and reducing the probability of accidental contact with the aerosol generating device.

[0140] This is illustrative; please refer to it. Figure 15The diagram illustrates a heating control device provided in an exemplary embodiment of this application, wherein the heating control device may specifically include the following modules: The detection module 1510 is used to detect a first capacitance change output by the contact detection circuit when the user comes into contact with the nozzle assembly. The contact detection circuit is used to detect the capacitance change when the user and the nozzle assembly come into contact. The generation module 1520 is used to generate a first level signal when the first capacitance change meets the first capacitance change condition. The detection module 1510 is further configured to detect the second capacitance change output by the airflow detection circuit when the user's inhalation operation is received, wherein the airflow detection circuit is configured to cause a capacitance change when a change in airflow is detected. The generation module 1520 is used to generate a second level signal when the second capacitance change meets the second capacitance change condition. The start-up module 1530 is used to start the aerosol generating device for heating based on the first level signal and the second level signal.

[0141] In some embodiments, the start module 1530 is used to start the aerosol generating device for heating when the first level signal and the second level signal are generated at the same time; or, when the time difference between the generation times corresponding to the first level signal and the second level signal does not reach a preset time difference threshold, the aerosol generating device is started for heating.

[0142] In some embodiments, the first level signal and the second level signal correspond to the same level type.

[0143] In some embodiments, the aerosol generating device is provided with a plurality of electrode plates; The detection module 1510 is also used to detect the change in the first capacitance output by the plurality of electrode plates when the aerosol generating device is powered on and the user is in contact with the nozzle assembly.

[0144] In some embodiments, the contact detection circuit includes a first pin; The generation module 1520 is used to determine that the user has made contact with the nozzle assembly when the change in the first capacitance corresponding to the electrode plate reaches a first change threshold; and to control the first pin to output the first level signal when the number of electrode plates corresponding to the first change threshold reaches a preset number threshold.

[0145] In some embodiments, the contact detection circuit includes a second pin; The generation module 1520 is used to input a first preset signal to the second pin when the aerosol generation device is in a powered-off state. The first preset signal is used to control the contact detection circuit to enter a sleep state, wherein the contact detection circuit does not undergo capacitance change in the sleep state.

[0146] In some embodiments, the airflow detection circuit includes a third pin; The generation module 1520 is used to output the second level signal through the third pin when the change in the second capacitance reaches the second change threshold.

[0147] In some embodiments, the aerosol generating device includes a signal processing circuit and an atomization execution circuit, wherein the signal processing circuit is provided with a first output channel and a second output channel; The generation module 1520 is used to control the first output channel to output a third level signal to the atomization execution circuit based on the first level signal and the second level signal; or, based on the first level signal and the second level signal, control the second output channel to output a third level signal to the atomization execution circuit, wherein the third level signal is used to instruct the atomization execution circuit to perform heating.

[0148] In some embodiments, the generation module 1520 is configured to control the aerosol generation device to stop heating when there is a level change in the first level signal; or, to control the aerosol generation device to stop heating when there is a level change in the second level signal.

[0149] In some embodiments, the generation module 1520 is configured to trigger a first indication message when there is a signal abnormality in the first level signal or the second level signal, and the duration of the signal abnormality reaches a preset duration threshold. The first indication message is used to indicate that there is a fault in the aerosol generation device.

[0150] The heating control device provided in this application collects the first capacitance change output by the contact detection circuit when the user comes into contact with the nozzle assembly, and collects the second capacitance change output by the airflow detection circuit when an inhalation operation is received. A first level signal is output when the first capacitance change meets the first capacitance change condition, and a second level signal is output when the second capacitance change meets the second capacitance change condition. The first and second level signals are combined to activate the aerosol generating device to perform the heating function. In other words, by combining the contact detection circuit and the airflow detection circuit, the contact and airflow changes of the nozzle assembly in the aerosol generating device are detected collaboratively, improving the accuracy of the inhalation action detection and reducing the probability of accidental contact with the aerosol generating device.

[0151] See Figure 16 This illustration shows a schematic diagram of the structure of a computer device provided in an embodiment of this application. Figure 16 As shown, the computer device 1000 of this embodiment includes: at least one processor 1010 ( Figure 16 (Only one is shown in the diagram) a processor, a memory 1020, and a computer program 1021 stored in the memory 1020 and capable of running on at least one processor 1010. When the processor 1010 executes the computer program 1021, it implements the steps in the above-described heating control method embodiments.

[0152] Computer device 1000 can be a desktop computer, laptop, handheld computer, cloud server, or other computing device. This terminal device may include, but is not limited to, processor 1010 and memory 1020. Those skilled in the art will understand that... Figure 16 This is merely an example of computer device 1000 and does not constitute a limitation on computer device 1000. It may include more or fewer components than shown in the figure, or combine certain components, or different components, such as input / output devices, network access devices, etc.

[0153] The processor 1010 may be a Central Processing Unit (CPU), or it may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0154] In some embodiments, memory 1020 may be an internal storage unit of computer device 1000, such as a hard disk or memory of computer device 1000. In other embodiments, memory 1020 may be an external storage device of computer device 1000, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., provided on computer device 1000. Furthermore, memory 1020 may include both internal and external storage units of computer device 1000. Memory 1020 is used to store operating systems, applications, boot loaders, data, and other programs, such as program code for computer programs. Memory 1020 may also be used to temporarily store data that has been output or will be output.

[0155] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0156] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0157] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0158] In the embodiments provided in this application, it should be understood that the disclosed apparatus / computer devices and methods can be implemented in other ways. For example, the apparatus / computer device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0159] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0160] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0161] If an integrated module / unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, swivel hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0162] The implementation of all or part of the processes in the methods of the above embodiments can also be accomplished by a computer program product. When the computer program product is run on a computer device, the computer device can implement the steps in the various method embodiments described above.

[0163] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A heating control method, characterized in that, The method is applied to an aerosol generating device, which includes a nozzle assembly, a contact detection circuit, and an airflow detection circuit. The method includes: When the user comes into contact with the nozzle assembly, the change in the first capacitance output by the contact detection circuit is detected; When the change in the first capacitance meets the first capacitance change condition, a first level signal is generated. Upon receiving the user's inhalation operation, the second capacitance change output by the airflow detection circuit is detected. The airflow detection circuit is used to generate a capacitance change when a change in airflow is detected. When the change in the second capacitance meets the second capacitance change condition, a second level signal is generated; The aerosol generating device is activated for heating based on the first and second level signals.

2. The method according to claim 1, characterized in that, The step of activating the aerosol generating device for heating based on the first level signal and the second level signal includes: When the first level signal and the second level signal are generated at the same time, the aerosol generating device is activated for heating; or... If the time difference between the generation times of the first level signal and the second level signal does not reach the preset time difference threshold, the aerosol generation device is started for heating.

3. The method according to claim 1, characterized in that, The first level signal and the second level signal correspond to the same level type.

4. The method according to any one of claims 1 to 3, characterized in that, The aerosol generating device is equipped with an electrode plate, which includes multiple contacts. The step of detecting the change in first capacitance output by the contact detection circuit when the user comes into contact with the nozzle assembly includes: When the aerosol generating device is powered on and the user is in contact with the nozzle assembly, the change in the first capacitance output by the plurality of contacts in the electrode sheet is detected.

5. The method according to claim 4, characterized in that, The contact detection circuit includes a first pin; The step of generating a first level signal when the first capacitance change meets the first capacitance change condition includes: If the change in the first capacitance corresponding to the contact point reaches a first change threshold, it is determined that the user has made contact with the nozzle assembly. When the number of contacts corresponding to the first change in capacitance reaches the first change threshold reaches a preset number threshold, the first pin is controlled to output the first level signal.

6. The method according to any one of claims 1 to 3, characterized in that, The contact detection circuit includes a second pin; The method further includes: When the aerosol generating device is in the off state, a first preset signal is input to the second pin. The first preset signal is used to control the contact detection circuit to enter a sleep state, wherein the contact detection circuit does not undergo capacitance change in the sleep state.

7. The method according to any one of claims 1 to 3, characterized in that, The airflow detection circuit includes a third pin; The step of generating a second level signal when the second capacitance change meets the second capacitance change condition includes: When the change in the second capacitance reaches the second change threshold, the second level signal is output through the third pin.

8. The method according to any one of claims 1 to 3, characterized in that, The aerosol generating device includes an atomization execution circuit, which has a first output channel and a second output channel. The step of activating the aerosol generating device for heating based on the first level signal and the second level signal includes: A third level signal is output to the first output channel based on the first level signal and the second level signal; or, Based on the first level signal and the second level signal, a third level signal is output to the second output channel, and the third level signal is used to instruct the atomization execution circuit to perform heating.

9. The method according to any one of claims 1 to 3, characterized in that, The method further includes: If the level of the first level signal changes, the aerosol generating device is controlled to stop heating; or... When there is a level change in the second level signal, the aerosol generating device is controlled to stop heating.

10. The method according to claim 9, characterized in that, The method further includes: If there is a signal abnormality in the first level signal or the second level signal, and the duration of the signal abnormality reaches a preset duration threshold, a first indication message is triggered. The first indication message is used to indicate that there is a fault in the aerosol generating device.

11. An aerosol generating device, characterized in that, The aerosol generating device includes a nozzle assembly, a contact detection circuit, an airflow detection circuit, and a signal processing circuit. The contact detection circuit is used to detect a first capacitance change when the user comes into contact with the nozzle assembly. The contact detection circuit is used to detect a capacitance change when the user and the nozzle assembly come into contact. When the first capacitance change meets the first capacitance change condition, a first level signal is generated. The airflow detection circuit is used to detect the second capacitance change output by the airflow detection circuit when the user's inhalation operation is received. The airflow detection circuit is used to generate a capacitance change when a change in airflow is detected. When the change in the second capacitance meets the second capacitance change condition, a second level signal is generated; The signal processing circuit is used to start the aerosol generating device for heating based on the first level signal and the second level signal.

12. The aerosol generating apparatus according to claim 11, characterized in that, The aerosol generating device is equipped with electrode plates arranged in a ring on the inner wall of the nozzle assembly to form a capacitive touch array. The capacitive touch array is used to generate capacitance changes when the user makes contact with the nozzle assembly.

13. A heating control device, characterized in that, The device includes: The detection module is used to detect the first capacitance change output by the contact detection circuit when the user comes into contact with the nozzle assembly. The contact detection circuit is used to detect the capacitance change when the user and the nozzle assembly come into contact. The generation module is used to generate a first level signal when the first capacitance change meets the first capacitance change condition. The detection module is also used to detect the second capacitance change output by the airflow detection circuit when the user's inhalation operation is received. The airflow detection circuit is used to generate a capacitance change when a change in airflow is detected. The generation module is used to generate a second level signal when the second capacitance change meets the second capacitance change condition. The start-up module is used to start the aerosol generating device for heating based on the first level signal and the second level signal.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the heating control method as described in any one of claims 1 to 11.

15. A computer program product, characterized in that, Includes a computer program, which, when run, causes the heating control method as described in any one of claims 1 to 11 to be performed.

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