Cleaning notification output method and aerosol generation device for performing same method

Abstract

A notification output method performed by an aerosol generation device may comprise the operations of: measuring a first sensor value by using a capacitance sensor in a state in which an aerosol generation article is not inserted into the aerosol generation device; measuring a second sensor value by using the capacitance sensor in a state in which the aerosol generation article is inserted into the aerosol generation device; and outputting a notification when a first value calculated on the basis of the first sensor value and the second sensor value is less than a first threshold value.

Description

Method for outputting cleaning notification and aerosol generating device performing the method

[0001] The embodiments below relate to techniques for providing notifications to a user of an aerosol generating device, and more particularly, to techniques for providing a notification to a user indicating whether the aerosol generating device requires cleaning.

[0002] Recently, demand for electronic cigarette devices has been steadily increasing. Furthermore, as demand for electronic cigarette devices grows, features related to electronic cigarette devices are continuously being developed. Specifically, features specific to the type and characteristics of electronic cigarette devices are being continuously developed.

[0003] During the use of an e-cigarette device, foreign substances, such as tobacco ash and / or aerosol droplets, may remain in the device. These foreign substances can degrade the quality of the smoke, and in particular, in e-cigarette devices that utilize inductive heating, they can reduce the efficiency of the device. Therefore, cleaning the device to remove foreign substances at an appropriate time may be required.

[0004] One embodiment may provide an aerosol generating device that outputs a notification indicating that cleaning is required using a capacitive sensor.

[0005] One embodiment may provide a method of outputting a notification indicating that cleaning is required using a capacitive sensor.

[0006] However, technical challenges are not limited to the technical challenges described above, and other technical challenges may exist.

[0007] According to one embodiment, a notification output method performed by an aerosol generating device may include an operation of measuring a first sensor value using a capacitive sensor in a state where an aerosol generating article is not inserted into the aerosol generating device, an operation of measuring a second sensor value using the capacitive sensor in a state where an aerosol generating article is inserted into the aerosol generating device, and an operation of outputting a notification when a first value calculated based on the first sensor value and the second sensor value is less than a first threshold value.

[0008] In one embodiment, an aerosol generating device includes a capacitive sensor, an induction coil generating an alternating magnetic field, and a control unit controlling the aerosol generating device, wherein the control unit can perform an operation of measuring a first sensor value using the capacitive sensor in a state where an aerosol generating article is not inserted into the aerosol generating device, an operation of measuring a second sensor value using the capacitive sensor in a state where an aerosol generating article is inserted into the aerosol generating device, and an operation of outputting a notification when a first value calculated based on the first sensor value and the second sensor value is less than a first threshold value.

[0009] According to at least one of the embodiments of the present disclosure, an aerosol generating device may be provided that outputs a notification indicating that cleaning is required using a capacitive sensor.

[0010] According to at least one of the embodiments of the present disclosure, a method of outputting a notification indicating that cleaning is required using a capacitive sensor may be provided.

[0011] FIG. 1 is a block diagram of an aerosol generating device according to one embodiment.

[0012] Figure 2 illustrates an aerosol generating device according to one embodiment.

[0013] FIG. 3 illustrates an aerosol generating device according to one embodiment.

[0014] Figure 4 illustrates a capacitor of a capacitive sensor according to an example.

[0015] FIG. 5 is a flowchart of a method for outputting a cleaning notification according to one embodiment.

[0016] FIG. 6 is a flowchart of a method for determining whether an upper case is coupled to a body, according to an example.

[0017] FIG. 7 is a flowchart of a method for outputting a cleaning notification based on values ​​of a capacitive sensor acquired while an aerosol generating article is heated, according to an example.

[0018] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components will be assigned the same reference numbers, and redundant descriptions thereof will be omitted. In relation to the description of the drawings, similar drawing numbers may be used for similar or related components.

[0019] The suffixes "module" and "unit" used for components in the following description are assigned or used interchangeably only for the convenience of writing the specification, and do not have distinct meanings or roles in themselves. Meanwhile, the suffixes "module" or "unit" may include units implemented with hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A "module" or "unit" may be a component configured integrally, or a minimum unit of the component that performs one or more functions, or a part thereof. For example, a "module" or "unit" may be implemented in the form of an application-specific integrated circuit (ASIC).

[0020] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present disclosure.

[0021] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0022] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0023] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0024] Embodiments of the present disclosure may be implemented as software including one or more instructions stored in a storage medium (e.g., memory (17)) readable by a machine (e.g., an aerosol generating device (1)). For example, a processor (e.g., a control unit (12)) of the machine (e.g., an aerosol generating device (1)) may call at least one command among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called command. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0025] In the present disclosure, the direction of the aerosol generating device (1) can be defined based on the orthogonal coordinate system. In the orthogonal coordinate system, the x-axis direction can be defined as the left-right direction of the aerosol generating device (1). The y-axis direction can be defined as the front-back direction of the aerosol generating device (1). The z-axis direction can be defined as the up-down direction of the aerosol generating device (1).

[0026] FIG. 1 is a block diagram of an aerosol generating device according to one embodiment.

[0027] According to one embodiment, the aerosol generating device (1) may include a power source (11), a control unit (12), a sensor unit (13), an output unit (14), an input unit (15), a communication unit (16), a memory (17), and / or a heater (18, 24). However, it will be understood by those skilled in the art related to the present embodiment that some of the components illustrated in FIG. 1 may be omitted or new components may be added depending on the design of the aerosol generating device (1).

[0028] According to one embodiment, the sensor unit (13) can detect the state of the aerosol generating device (1) or the state around the aerosol generating device (1) and transmit the detected information to the control unit (12). For example, the sensor unit (13) may include a temperature sensor, a puff sensor, an insertion detection sensor, a reuse detection sensor, an overly moist detection sensor, a cigarette identification sensor, a cartridge detection sensor, a cap detection sensor, and / or a movement detection sensor. Meanwhile, the sensor unit (13) may further include various sensors, such as a liquid remaining amount sensor for detecting the liquid remaining amount of the cartridge, and an immersion sensor for detecting immersion of the aerosol generating device (1).

[0029] In one embodiment, the temperature sensor can detect the temperature at which the heater (18, 24) is heated. The aerosol generating device (1) may include a separate temperature sensor for detecting the temperature of the heater (18, 24), or the heater (18, 24) itself may function as a temperature sensor. As an example, the temperature sensor may be used to measure the impedance to the heater (18). The impedance to the heater (18) may be correlated with the temperature of the heater (18). The temperature sensor may measure the current and / or voltage applied to the heater (18) (or the induction coil). Based on the measured current and / or voltage, the impedance to the heater (18) may be calculated. The control unit (12) may estimate the temperature of the heater (18) based on the calculated impedance.

[0030] For example, the temperature sensor may include a resistance element (e.g., a thermistor) whose resistance value changes in response to a temperature change of the heater (18, 24). The temperature sensor may output a signal corresponding to the resistance value of the resistance element, and the control unit (12) may detect the temperature and / or temperature change of the heater (18, 24) based on the signal corresponding to the resistance value.

[0031] As another example, the temperature sensor may include a sensor that detects the resistance value of the heater (18, 24). The temperature sensor may output a signal corresponding to the resistance value of the heater (18, 24), and the control unit (12) may detect the temperature and / or temperature change of the heater (18, 24) based on the signal corresponding to the resistance value.

[0032] In one embodiment, the temperature sensor can detect the temperature of the power source (11). The temperature sensor can be positioned adjacent to the power source (11). For example, the temperature sensor can be attached to one surface of the power source (11) (e.g., a battery) and / or mounted on one surface of a printed circuit board. For example, the aerosol generating device (1) can include a power protection circuit module (PCM), and the temperature sensor can be positioned adjacent to the power source (11) together with the power protection circuit.

[0033] According to one embodiment, the temperature sensor may be placed inside the housing (not shown) of the aerosol generating device (1) to detect the temperature inside the housing (not shown).

[0034] In one embodiment, the puff sensor can detect a user's puff.

[0035] For example, the puff sensor may include a pressure sensor. The pressure sensor may output a signal corresponding to the internal pressure of the aerosol generating device (1), and the control unit (12) may detect the user's puff based on the signal corresponding to the internal pressure. Here, the internal pressure of the aerosol generating device (1) may correspond to the pressure of an airflow path through which gas flows. The puff sensor may be arranged in correspondence to the airflow path through which gas flows in the aerosol generating device (1).

[0036] As another example, the puff sensor may include a temperature sensor. When the user puffs, a temporary temperature drop may occur in the airflow path, the space where the aerosol generating product is inserted (hereinafter, referred to as the insertion space), the heater (18, 24), etc. The control unit (12) may detect the user's puff based on a signal corresponding to the temperature of the airflow path, etc. output from the temperature sensor.

[0037] As another example, the puff sensor may include both a pressure sensor and a temperature sensor. In this case, the temperature sensor may measure a temperature used to correct the internal pressure measured by the pressure sensor. As an example, the puff sensor may correct a signal corresponding to the internal pressure based on the temperature measured by the temperature sensor and output the corrected signal. As another example, the puff sensor may output a signal corresponding to the temperature measured by the temperature sensor and a signal corresponding to the internal pressure measured by the puff sensor. In this case, the control unit (12) may receive the signals and correct the signal corresponding to the internal pressure based on the signal corresponding to the temperature.

[0038] As another example, the puff sensor may include a capacitance sensor. In the present disclosure, the capacitance sensor may also be referred to as a capacitive sensor or a capacitive sensor. When a user puffs, a temperature change and / or aerosol flow may occur within the insertion space of the aerosol-generating article, and thus, the permittivity within the insertion space may change. The control unit (12) may detect the user's puff based on a signal corresponding to the permittivity within the insertion space, etc., output from the capacitance sensor.

[0039] The puff sensor is not limited to the examples described above and may be implemented with various sensors to detect the user's puff.

[0040] In one embodiment, an insertion detection sensor can detect the insertion and / or removal of an aerosol-generating item. The insertion detection sensor can be installed around the insertion space. Additionally, the insertion detection sensor can include any combination of the examples described above.

[0041] For example, the insertion detection sensor may include a capacitive sensor. The capacitive sensor may include at least one conductor, and the at least one conductor may be positioned adjacent to the insertion space. When an aerosol-generating article is inserted or removed within the insertion space, the permittivity around the conductor may change. The control unit (12) may detect the insertion and / or removal of the aerosol-generating article based on a signal corresponding to the permittivity within the insertion space, etc., output from the capacitive sensor.

[0042] As another example, the insertion detection sensor may include an inductive sensor. The inductive sensor may include at least one coil, and the at least one coil may be disposed adjacent to the insertion space. If the aerosol-generating article (e.g., a wrapper of the aerosol-generating article) includes a conductor, a change in a magnetic field may occur around the current-carrying coil when the aerosol-generating article is inserted into or removed from the insertion space. The control unit (12) may detect the insertion and / or removal of the aerosol-generating article including the conductor based on the characteristics of the current output from or detected by the inductive sensor (e.g., frequency of the alternating current, current value, voltage value, inductance value, impedance value, etc.). Alternatively, the aerosol-generating article (e.g., the medium portion of the aerosol-generating article) may include a susceptor (SUS). Even in this case, a change in the magnetic field may occur around the coil based on the insertion or removal of a susceptor or the like within the insertion space, and the control unit (12) may also detect the insertion and / or removal of the aerosol generating article based on the characteristics of the current of the inductive sensor.

[0043] The insertion detection sensor is not limited to the examples described above, and may be implemented with various sensors (e.g., proximity sensors, etc.) for detecting the insertion and / or removal of an aerosol-generating article. Furthermore, the insertion detection sensor may include any combination of the examples described above. In one embodiment, the insertion detection sensor may include a switch or the like for detecting pressure by an aerosol-generating article.

[0044] In one embodiment, a reuse detection sensor can detect whether an aerosol-generating article has been reused. For example, the reuse detection sensor may be a color sensor for detecting the color of the aerosol-generating article. When the aerosol-generating article is used by a user, a color change may occur in a portion of a wrapper surrounding the exterior of the aerosol-generating article due to the generated aerosol or heating. The color sensor can output a signal corresponding to an optical characteristic (e.g., a wavelength of light) corresponding to the color of the wrapper based on light reflected from the wrapper. If a change in the color of a portion of the wrapper is detected, the control unit (12) can determine that the aerosol-generating article inserted into the insertion space has already been used.

[0045] According to one embodiment, the over-humidity detection sensor can detect whether an aerosol-generating article is over-humidified. For example, the over-humidity detection sensor can include a capacitive sensor. The capacitive sensor can include at least one conductor disposed adjacent to an insertion space. The control unit (12) can detect whether the aerosol-generating article is over-humidified based on the level of a signal corresponding to a permittivity or the like output from the capacitive sensor. For example, the control unit (12) can check a level range within which the level of the signal is included based on a look-up table, and determine the moisture content of the aerosol-generating article based on the checked level range.

[0046] In one embodiment, the cigarette identification sensor can detect whether an aerosol generating article is genuine and / or detect the type of aerosol generating article.

[0047] For example, the cigarette identification sensor may include an optical sensor for detecting an identification material (or identification mark) located on the outer surface (e.g., wrapper) of an aerosol-generating article. The optical sensor may irradiate light toward the identification material (or identification mark) of the aerosol-generating article and detect the authenticity and / or type of the aerosol-generating article based on the reflected light. For example, the identification material may include a material that emits light in a specific wavelength range based on the irradiated light. The control unit (12) may detect the authenticity and / or type of the aerosol-generating article based on the range of the wavelength.

[0048] As another example, the cigarette identification sensor may include a capacitive sensor. The dielectric constant within the insertion space may vary depending on the type of aerosol-generating product inserted into the insertion space. The control unit (12) may detect the authenticity and / or type of the aerosol-generating product based on a signal corresponding to the dielectric constant within the insertion space output from the capacitive sensor.

[0049] As another example, the cigarette identification sensor may include an inductive sensor. When a conductor is included in the wrapper and / or the interior (e.g., the medium portion) of the aerosol-generating article inserted into the insertion space, the characteristics of the current detected by the inductive sensor (e.g., frequency of the alternating current, current value, voltage value, inductance value, impedance value, etc.) when the aerosol-generating article is inserted into the insertion space may differ depending on the type of the aerosol-generating article inserted into the insertion space. The control unit (12) may detect whether the inserted aerosol-generating article is genuine and / or the type of the inserted aerosol-generating article based on the characteristics of the current output from or detected by the inductive sensor.

[0050] The cigarette identification sensor is not limited to the examples described above, and may be implemented with various sensors to detect the authenticity of an aerosol-generating product and / or the type of aerosol-generating product. Furthermore, the cigarette identification sensor may include any combination of the examples described above.

[0051] In one embodiment, the cartridge detection sensor may detect the mounting and / or removal of a cartridge. For example, the cartridge detection sensor may include an inductive sensor, a capacitive sensor, a resistive sensor, a Hall sensor (Hall IC), and / or an optical sensor.

[0052] In one embodiment, the cap detection sensor can detect the mounting and / or removal of the cap. For example, the cap detection sensor can include an inductive sensor, a capacitive sensor, a resistive sensor, a contact sensor, a Hall sensor (hall IC), and / or an optical sensor. The cap can include a structure that covers at least a portion of a cartridge mounted or inserted into the aerosol generating device (1), or covers at least a portion of a housing of the aerosol generating device (1). The cap detection sensor can output a signal corresponding to the mounting or removal when the cap is mounted on or removed from the housing, and the control unit (12) can detect the mounting or removal of the cap based on the signal corresponding to the mounting or removal.

[0053] According to one embodiment, the motion detection sensor can detect the movement of the aerosol generating device (1). The motion detection sensor can be implemented as at least one of an acceleration sensor or a gyro sensor.

[0054] According to one embodiment, the sensor unit (13) may further include, in addition to the aforementioned sensors, at least one of a humidity sensor, a barometric pressure sensor, a magnetic sensor, a position sensor (Global Positioning System, GPS), or a proximity sensor. Since the functions of each sensor can be intuitively inferred by a person skilled in the art from its name, a detailed description thereof may be omitted.

[0055] According to one embodiment, the output unit (14) can output information about the status of the aerosol generating device (1). The output unit (14) can include, but is not limited to, a display, a haptic unit, and / or an audio output unit. For example, the information about the aerosol generating device (1) can include a charging / discharging status of the power supply (11) of the aerosol generating device (1), a preheating status of the heater (18, 24), an insertion / removal status of an aerosol generating article and / or a cartridge, a mounting and / or removal status of a cap, or a status in which the use of the aerosol generating device (1) is restricted (e.g., detection of an abnormal article). The display can visually provide information about the status of the aerosol generating device (1) to the user. For example, the display can include a light emitting diode (LED) light emitting element, a liquid crystal display panel (LCD), an organic light emitting display panel (OLED), etc. The display, if it includes a touch pad, can also be used as an input unit (15). The haptic unit can provide tactile information about the status of the aerosol generating device (1) to the user. For example, the haptic unit can include a vibration motor, a piezoelectric element, an electrical stimulation device, etc. The acoustic output unit can provide audible information about the aerosol generating device (1) to the user. For example, the acoustic output unit can convert an electrical signal into an acoustic signal and output it to the outside.

[0056] According to one embodiment, the power source (11) can supply power for the operation of the aerosol generating device (1). The power source (11) can include one or more batteries. The power source (11) can supply power so that the heaters (18, 24) can be heated. In addition, the power source (11) can also supply power required for the operation of other components included in the aerosol generating device (1), such as the control unit (12), the sensor unit (13), the output unit (14), the input unit (15), the communication unit (16), and the memory (17). The power source (11) can be a rechargeable battery or a disposable battery. For example, the power source (11) can be a lithium polymer (LiPoly) battery, but is not limited thereto. The power source (11) can also be a replaceable type (detachable) battery (hereinafter, referred to as a removable battery). The removable battery may be mounted in the battery compartment provided within the aerosol generating device (1) or may be removed from the battery compartment. The removable battery may be charged by wire and / or wirelessly.

[0057] According to one embodiment, the heater (18, 24) may be powered by the power source (11) to heat the aerosol generating article and / or the medium and / or the aerosol generating material within the cartridge. The aerosol generating device (1) may include a heater (18) for heating the aerosol generating article and / or a cartridge heater (24) for heating the cartridge (i.e., the solid and / or liquid medium).

[0058] In one embodiment, the heater (18, 24) may be an electrically resistive heater. For example, the electrically resistive heater may include an electrically resistive material, such as a metal or metal alloy including titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, etc. The electrically resistive heater may be implemented as a metal heating wire, a metal heating plate having electrically conductive tracks arranged thereon, a ceramic heating element, etc.

[0059] In one embodiment, the heater (18, 24) may be an induction heating heater. For example, the induction heating heater may include a susceptor that generates heat by a magnetic field. A magnetic field may be generated from the induction coil by an alternating current flowing through the induction coil. The generated magnetic field may penetrate the heater, and an eddy current may be generated in the susceptor. The susceptor may be heated based on the generation of the eddy current. In one embodiment, the susceptor may be included within the aerosol generating article (e.g., the medium portion). In this case, the susceptor included within the aerosol generating article may be heated by the induction coil.

[0060] The heater (18, 24) is not limited to the examples described above, and may include or be replaced with various heating methods, structures, components, etc. for heating the aerosol generating article and / or cartridge.

[0061] According to one embodiment, the input unit (15) can receive information input from a user. For example, the input unit (15) can include a touch panel, a button, a key pad, a dome switch, a jog wheel, a jog switch, etc.

[0062] According to one embodiment, the memory (17) is hardware that stores various data processed within the aerosol generating device (1), and can store data processed and data to be processed in the control unit (12). For example, the memory (17) may include at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. For example, the memory (17) may store data on the operation time of the aerosol generating device (1), the maximum number of puffs, the current number of puffs, at least one temperature profile, and a user's smoking pattern.

[0063] According to one embodiment, the communication unit (16) may include at least one component for communicating with another electronic device (e.g., a portable electronic device). For example, the communication unit (16) may include a Bluetooth communication unit, a BLE (Bluetooth Low Energy) communication unit, a near field communication unit, a WLAN (wireless local area network) communication unit, a Zigbee communication unit, an infrared (infrared Data Association, IrDA) communication unit, a WFD (Wireless Fidelity Direct) communication unit, an UWB (ultra wideband) communication unit, an ANT (Adaptive Network Topology)+ communication unit, a cellular network communication unit, an Internet communication unit, a computer network (e.g., a LAN or WAN) communication unit, etc.

[0064] According to one embodiment, the control unit (12) can control the overall operation of the aerosol generating device (1). For example, the control unit (12) can include at least one processor. The control unit (12) can be implemented as an array of a plurality of logic gates, or can be implemented as a combination of a general-purpose MCU (microcontroller unit) (or microprocessor) and a memory storing a program that can be executed in such an MCU. In addition, it will be understood by those skilled in the art to which the present embodiment pertains that the control unit (12) can be implemented as other types of hardware.

[0065] According to one embodiment, the control unit (12) can control the temperature of the heater (18, 24) by controlling the supply of power from the power source (11) to the heater (18, 24). The control unit (12) can control the temperature of the heater (18, 24) and / or the power supplied to the heater (18, 24) based on the temperature of the heater (18, 24) detected using a temperature sensor (e.g., the sensor unit (13)). The control unit (12) can control the temperature of the heater (18, 24) and / or the power supplied to the heater (18, 24) based on a temperature profile and / or a power profile stored in the memory (17).

[0066] According to one embodiment, the control unit (12) can control power (e.g., voltage and / or current) supplied to the heater (18, 24) by controlling a power conversion circuit (not shown) electrically connected to the heater (18, 24) and the power source (11). For example, the power conversion circuit may include a DC / DC converter (e.g., a buck converter, a buck-boost converter, a boost converter, a Zener diode, etc.) that converts power to be supplied to the heater (18, 24), and a DC / AC converter (e.g., an inverter) that converts power to be supplied to an induction coil (not shown). The DC / AC converter may be implemented as a full-bridge circuit or a half-bridge circuit including a plurality of switching elements. For example, a power conversion circuit may include at least one switching element, such as a bipolar junction transistor (BJT) or a field effect transistor (FET).

[0067] According to one embodiment, the control unit (12) can control the current and / or voltage supplied to the heater (18, 24) by controlling the frequency and / or duty ratio of a current pulse input to at least one switching element of the power conversion circuit (not shown). The duty ratio for the on / off operation of the switching element can correspond to the ratio of the output voltage of the power conversion circuit to the output voltage of the power source (11).

[0068] According to one embodiment, the control unit (12) can control the power supplied to the heater (18, 24) using at least one of a pulse width modulation (PWM) method and a proportional-integral-differential (PID) method. For example, the control unit (12) can control a current pulse having a predetermined frequency and duty ratio to be supplied to the heater (18, 24) using the PWM method. The control unit (12) can control the power supplied to the heater (18, 24) by adjusting the frequency and duty ratio of the current pulse. For example, the control unit (12) can determine a target temperature that is a target of control based on a temperature profile. The control unit (12) can control the power supplied to the heater (18, 24) by using the PID method, which is a feedback control method using the difference value between the temperature of the heater (18, 24) and the target temperature, the value obtained by integrating the difference value over time, and the value obtained by differentiating the difference value over time.

[0069] According to one embodiment, the control unit (12) can determine a target power that is the target of control based on the power profile. The control unit (12) can also control the power supplied to the heater (18, 24) to correspond to the preset target power over time.

[0070] According to one embodiment, the control unit (12) can detect the user's puff by detecting the power supplied to the heater (18, 24). More specifically, the control unit (12) can control the power supplied to the heater (18, 24) using a PID method. When the user's puff is generated, a temporary temperature drop may occur in a space where an aerosol generating article is inserted (hereinafter, referred to as the insertion space), the heater (18, 24), etc. Accordingly, a change may occur in the power (or current) supplied to the heater (18, 24) during the power control using the PID method. The control unit (12) can detect the user's puff based on the change in the controlled power.

[0071] In one embodiment, the control unit (12) can prevent the heater (18, 24) from overheating. For example, the control unit (12) can control the operation of the power conversion circuit to reduce the amount of power supplied to the heater (18, 24) or to stop supplying power to the heater (18, 24) based on whether the temperature of the heater (18, 24) exceeds a preset limit temperature.

[0072] According to one embodiment, the control unit (12) can control charging and discharging of the power source (11). For example, the control unit (12) can check the temperature of the power source (11) using a temperature sensor (e.g., sensor unit (13)). If the temperature of the power source (11) is higher than a first limit temperature, the control unit (12) can block charging of the power source (11). If the temperature of the power source (11) is higher than a second limit temperature, the control unit (12) can stop using (e.g., discharging) the power stored in the power source (11). The control unit (12) can calculate the remaining capacity of the power stored in the power source (11). For example, the control unit (12) can calculate the remaining capacity of the power source (11) based on voltage and / or current sensing values ​​of the power source (11).

[0073] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on the result detected by the sensor unit (13).

[0074] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on the insertion and / or removal of the aerosol-generating article into the insertion space. For example, the control unit (12) can control to supply power to the heater (18, 24) when it is determined that the aerosol-generating article has been inserted into the insertion space using an insertion detection sensor (e.g., sensor unit (13)). The control unit (12) can cut off the power supply to the heater (18, 24) when it is determined that the aerosol-generating article has been removed from the insertion space using an insertion detection sensor (e.g., sensor unit (13)). The control unit (12) can also determine that the aerosol-generating article has been removed from the insertion space when the temperature of the heater (18, 24) is equal to or higher than a limited temperature or when the temperature change slope of the heater (18, 24) is equal to or higher than a set slope.

[0075] According to one embodiment, the control unit (12) can control the power supply time and / or power supply amount to the heater (18, 24) based on the state of the aerosol generating article. For example, if the control unit (12) determines that the aerosol generating article is in an over-humidity state by using an over-humidity detection sensor (e.g., sensor unit (13)), the control unit (12) can increase the power supply time (e.g., preheating time) to the heater (18, 24).

[0076] In one embodiment, the control unit (12) may control the power supply to the heater (18, 24) based on whether the aerosol generating article has been reused. For example, the control unit (12) may cut off the power supply to the heater (18, 24) if it is determined that the aerosol generating article has been used.

[0077] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on whether the cartridge is coupled and / or removed. For example, if the control unit (12) determines that the cartridge is coupled and / or removed using a cartridge detection sensor (e.g., sensor unit (13)), the control unit (12) can control to stop the power supply to the heater (18, 24) or prevent power from being supplied to the heater (18, 24).

[0078] According to one embodiment, the control unit (12) may control the power supply to the heater (18, 24) based on whether the aerosol generating material of the cartridge has been exhausted. For example, if the control unit (12) determines that the temperature of the heater (18, 24) exceeds a limit temperature while preheating the heater (18, 24) (i.e., during the preheating period), the control unit (12) may determine that the aerosol generating material of the cartridge has been exhausted. If the control unit (12) determines that the aerosol generating material of the cartridge has been exhausted, the control unit (12) may cut off the power supply to the heater (18, 24).

[0079] According to one embodiment, the control unit (12) may control the power supply to the heater (18, 24) based on whether the cartridge is available for use. For example, the control unit (12) may determine that the cartridge is unusable if the current number of puffs is determined to be greater than or equal to the maximum number of puffs set for the cartridge based on data stored in the memory (17). Alternatively, the control unit (12) may determine that the cartridge is unusable if the total time that the heater (18, 24) has been heated is greater than or equal to the preset maximum time or the total amount of power supplied to the heater (18, 24) is greater than or equal to the preset maximum amount of power. In this case, the control unit (12) may stop the power supply to the heater (18, 24) or control that power is not supplied to the heater (18, 24).

[0080] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on the user's puff. For example, the control unit (12) can determine whether a puff has been generated and / or the intensity of the puff using a puff sensor (e.g., sensor unit (13)). The control unit (12) can cut off the power supply to the heater (18, 24) when the number of puffs reaches a preset maximum number of puffs and / or no puffs are detected for a preset period of time. The control unit (12) can also control the power supply to the heater (18, 24) when a puff is detected.

[0081] In one embodiment, the control unit (12) may control the power supply to the heater (18, 24) based on whether the aerosol generating article (or cartridge) is genuine and / or the type thereof. For example, the control unit (12) may detect whether the aerosol generating article is genuine and / or the type thereof using a cigarette identification sensor (e.g., sensor unit (13)). For example, if the control unit (12) detects that the aerosol generating article (or cartridge) is counterfeit, the control unit (12) may cut off the power supply to the heater (18, 24). If the control unit (12) detects that the aerosol generating article (or cartridge) is genuine, the control unit (12) may control (e.g., start) the power supply to the heater (18, 24). As another example, the control unit (12) may control the power supply to the heater (18, 24) differently depending on the type of the aerosol generating article (or cartridge). More specifically, the control unit (12) can control the temperature and / or power of the heater (18, 24) based on a first temperature profile (or a first power profile) when the aerosol generating article (or cartridge) is detected as a first aerosol generating article (or a first cartridge), and can control the temperature and / or power of the heater (18, 24) based on a second temperature profile (or a second power profile) when the aerosol generating article (or cartridge) is detected as a second aerosol generating article (or a second cartridge).

[0082] According to one embodiment, the control unit (12) can control the output unit (14) based on the result detected by the sensor unit (13). For example, the control unit (12) can control the output unit (14) to visually, tactilely and / or audibly provide information that the aerosol generating device (1) is about to be terminated when the number of puffs counted using the puff sensor (e.g., the sensor unit (13)) reaches a preset number. For example, the control unit (12) can also control the output unit (14) to visually, tactilely and / or audibly provide information about the temperature of the heater (18, 24).

[0083] According to one embodiment, the control unit (12) may store and update a history of events that have occurred in the memory (17) based on the occurrence of a predetermined event. For example, the event may include operations such as detection of insertion of an aerosol generating article, initiation of heating of the aerosol generating article, detection of puff, termination of puff, detection of overheating of the heater (18, 24), detection of overvoltage application to the heater (18, 24), termination of heating of the aerosol generating article, power on / off of the aerosol generating device (1), initiation of charging of the power source (11), detection of overcharging of the power source (11), termination of charging of the power source (11), etc., performed in the aerosol generating device (1). For example, the history of events may include the date and time when the event occurred, log data corresponding to the event, etc. For example, if a given event is detection of insertion of an aerosol generating article, log data corresponding to the event may include data on the sensing value of an insertion detection sensor (e.g., sensor unit (13)). For example, if a given event is detection of overheating of a heater (18, 24), log data corresponding to the event may include data on the temperature of the heater (18, 24), the voltage applied to the heater (18, 24), the current flowing through the heater (18, 24), and the like.

[0084] According to one embodiment, the control unit (12) can control the communication unit (16) to form a communication link with an external device, such as a user's mobile terminal.

[0085] According to one embodiment, the control unit (12) may release restrictions on the use of at least one function (e.g., heating function) of the aerosol generating device (1) when authentication data is received from an external device via a communication link. For example, the authentication data may include the user's birthday, a unique number identifying the user, whether the user has completed authentication, etc.

[0086] According to one embodiment, the control unit (12) can transmit data on the status of the aerosol generating device (1) to an external device via a communication link (e.g., remaining capacity of the power source (11), operating mode, etc.). The transmitted data can be output through a display of the external device, etc.

[0087] According to one embodiment, when a request for location search of the aerosol generating device (1) is received from an external device via a communication link, the control unit (12) can control the output unit (14) to perform an operation corresponding to the location search. For example, the control unit (12) can control the haptic unit to generate vibration or control the display to output an object corresponding to the location search and the end of the search.

[0088] According to one embodiment, the control unit (12) can perform a firmware update when firmware data is received from an external device via a communication link.

[0089] According to one embodiment, the control unit (12) may transmit data on the sensed values ​​of at least one sensor unit (13) to an external server (not shown) via a communication link, and receive and store a learning model generated by learning the sensed values ​​through machine learning, such as deep learning, from the server. The control unit (12) may perform an operation of determining a user's suction pattern, an operation of generating a temperature profile, etc., using the learning model received from the server.

[0090] Although not shown in FIG. 1, the aerosol generating device (1) may further include a power protection circuit. The power protection circuit may include at least one switching element and may cut off the power supply (11) in response to overcharging and / or overdischarging of the power supply (11). The aerosol generating device (1) may further include a connection interface, such as a USB (universal serial bus) interface, and may transmit and receive information or charge the power supply (11) by connecting to another external device through the connection interface.

[0091] The aerosol generating article referred to in the present disclosure may include at least one aerosol generating rod (e.g., a medium portion) and at least one filter rod. The heater (18) may be arranged to correspond to the at least one aerosol generating rod, and may be designed differently depending on the arrangement order and / or position of the aerosol generating rod and the filter rod. The aerosol generating rod may include at least one of nicotine, an aerosol generating material, and an additive. For example, the aerosol generating material may include glycerin (e.g., vegetable glycerin (VG)) and / or propylene glycol (PG), and may also include various other substances. For example, the additive may include a flavoring agent and / or an organic acid, and may also include various other substances. For example, the aerosol-generating rod may comprise an aerosol-generating substrate (e.g., a sheet) impregnated with a liquid non-tobacco material (e.g., an aerosol-generating material and / or nicotine), and / or may comprise a solid tobacco material (e.g., leaf tobacco, reconstituted tobacco, etc.). The tobacco material may be included in the aerosol-generating rod in various forms, such as cut tobacco, granules, powder, etc. In one embodiment, the additive of the aerosol-generating rod may include an alkaline material. Based on the alkaline material, the nicotine of the tobacco material included in the aerosol-generating rod may have an alkaline pH (e.g., pH 7.0 or higher). In this case, freebase nicotine may be released from the aerosol-generating rod even at low temperatures. In one embodiment, the aerosol-generating rod may include two or more aerosol-generating rods, and the two or more aerosol-generating rods may each include a tobacco material and / or a non-tobacco material.Meanwhile, although not shown, at least one aerosol generating rod and at least one filter rod may be individually and / or integrally wrapped by at least one wrapper. In the present disclosure, the aerosol generating article may also be referred to as a stick.

[0092] The cartridge referred to in the present disclosure may contain an aerosol-generating material having any one of the following states: a liquid state, a solid state, a gaseous state, or a gel state. The aerosol-generating material may include a liquid composition. For example, the liquid composition may be a liquid containing a tobacco-containing material including a volatile tobacco flavor component, or may be a liquid containing a non-tobacco material. Meanwhile, the cartridge may include a storage unit containing the aerosol-generating material and / or a liquid delivery means impregnating (containing) the aerosol-generating material. For example, the liquid delivery means may include a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic. The cartridge heater (24) may be included in the cartridge in the form of a coil-shaped structure surrounding (or winding) the liquid delivery means, or in a structure contacting one side of the liquid delivery means. Alternatively, the cartridge heater (24) may be included in an aerosol-generating device (1) that is separable from the cartridge.

[0093] FIG. 2 illustrates an aerosol generating device according to one embodiment, and FIG. 3 illustrates an aerosol generating device according to one embodiment.

[0094] According to one embodiment, the aerosol generating device (1) may include a housing (10), a power source (11), a control unit (12), a sensor unit (13), and / or a heater (182, 183) (e.g., the heater (18) of FIG. 1). However, it will be understood by those skilled in the art related to the present embodiment that the components included in the aerosol generating device (1) are not limited to those illustrated in FIG. 2 or FIG. 3, and that some of the components may be omitted or new configurations may be added. The aerosol generating device (1) illustrated in FIG. 2 may be referred to as an 'internal heating type' aerosol generating device that heats the inside of the aerosol generating article (2). The aerosol generating device (1) illustrated in FIG. 3 may be referred to as an 'external heating type' aerosol generating device that heats the outside of the aerosol generating article (2). In the drawings below, any description overlapping with that of FIG. 1 will be omitted.

[0095] According to one embodiment, the housing (10) may provide a space that is opened upwardly to allow an aerosol-generating article (2) to be inserted. In the present disclosure, the space that is opened upwardly may be referred to as an insertion space. The insertion space may be formed by being recessed toward the interior of the housing (10) to a predetermined depth so that at least a portion of the aerosol-generating article (2) can be inserted. The depth of the insertion space may be longer than the length of a region of the aerosol-generating article (2) containing an aerosol-generating material and / or medium. The lower end of the aerosol-generating article (2) may be inserted into the interior of the housing (10), and the upper end of the aerosol-generating article (2) may protrude outside the housing (10). A user may hold the upper end of the aerosol-generating article (2) exposed to the outside in his / her mouth and inhale the aerosol.

[0096] According to one embodiment, the heater (182, 183) can heat the aerosol generating article (2).

[0097] Referring to FIG. 2, the heater (182) may be an internal heating type heater.

[0098] According to one embodiment, the internally heated heater may extend upwardly in a space (i.e., an insertion space) into which the aerosol generating article (2) is inserted. For example, the internally heated heater may include a rod-shaped or needle-shaped heating element as illustrated, but may also include various heating elements such as a tubular heating element or a plate-shaped heating element. The internally heated heater may be inserted through the lower portion of the aerosol generating article (2).

[0099] According to one embodiment, the internal heating heater may include an electrical resistance heater and / or an induction heating heater.

[0100] For example, an electric resistance heater may include an electric resistance material on the inside (e.g., an inner hollow portion or inner surface) or the outside (e.g., an outer surface), and may be heated as current flows through the electric resistance material. In this case, the electric resistance heater may be electrically connected to a power source (11), and may directly generate heat by receiving current from the power source (11). In addition, the induction coil (181) may be omitted.

[0101] For example, in the case of an induction heating type heater, the aerosol generating device (1) may include an induction coil (181) that surrounds at least a portion of the internal heating type heater (e.g., is disposed externally to correspond to the length of at least a portion of the heater). In this case, a magnetic flux concentrator or the like may be further included on the outside of the induction coil (181) to increase the efficiency of induction heating. The induction heating type heater includes a susceptor and may generate heat based on a magnetic field generated from the induction coil (181). According to one embodiment, the induction heating type heater (e.g., susceptor) (or a heater module including the same) may be arranged to be detachable from the housing (10).

[0102] According to one embodiment, the heater (182) may be a multi-heater. The multi-heater may include a first heater and a second heater, and may be inserted into the aerosol generating article (2). The first heater and the second heater may be arranged side by side along the longitudinal direction. The first heater and the second heater may operate as an electrical resistance heater and / or an induction heater, and may be heated sequentially or simultaneously. In this case, the first heater and the second heater may be arranged at positions corresponding to the longitudinal positions of two or more aerosol generating rods, respectively (respectively). Alternatively, the first heater and the second heater may be arranged at positions corresponding to the longitudinal positions of a first portion and a second portion of one aerosol generating rod, respectively. Meanwhile, when the heater (182) is an induction heating type heater, the aerosol generating device (1) includes a first induction coil and a second induction coil, and the first induction coil and the second induction coil may be respectively disposed at positions corresponding to the longitudinal positions of the first heater and the second heater. Alternatively, the first heater and the second heater may respectively be disposed at positions corresponding to the longitudinal positions of the first part and the second part of one heater (182). In addition, three or more heaters and / or induction coils may be included.

[0103] According to one embodiment, the susceptor may be disposed (or included) within the aerosol generating article (2) (e.g., the medium portion), and the susceptor included within the aerosol generating article (2) may be implemented to generate heat based on a magnetic field generated from an induction coil (181).

[0104] Referring to FIG. 3, the heater (183) may be an external heating type heater.

[0105] In one embodiment, the external heating heater may extend upwardly around the space into which the aerosol generating article (2) is inserted (i.e., the insertion space). For example, the external heating heater may be arranged to surround at least a portion of the insertion space. For example, the external heating heater may have a tubular shape (e.g., a cylindrical shape) having a hollow space therein. The external heating heater may also have a shape having a hollow space on the inside and surrounding the hollow space. In this case, the external heating heater may be supported by a polyimide film. A heater supported by such a film may be referred to as a film heater. The external heating heater may be arranged to surround at least a portion of the insertion space. The external heating heater may heat the outside of the aerosol generating article (2) inserted into the hollow space.

[0106] According to one embodiment, the external heating heater may include an electric resistance heater and / or an induction heating heater, and a description overlapping with FIG. 2 will be omitted. Meanwhile, in the case of an induction heating heater, the aerosol generating device (1) may include an external heating heater implemented as a tubular susceptor, and may include an induction coil (181) surrounding at least a portion of the external heating heater (e.g., disposed externally to correspond to the length of at least a portion of the heater). In addition, the induction coil (181) may include a fan coil. Meanwhile, when the external heating heater is an electric resistance heater, a separate induction coil (181) may be omitted since heat generation is possible through current flow on a tubular electric resistance heater (e.g., a film heater). Meanwhile, an insulating material may be disposed on the outside of the external heating heater. Through this, heat radiating from the heater (183) in an outward direction and applied to the outside of the housing (10) may be reduced.

[0107] According to one embodiment, the heater (183) may be a multiple heater, and the first heater and the second heater may be arranged side by side along the longitudinal direction to surround at least a portion of the insertion space, respectively. The first heater and the second heater may operate as an electrical resistance heater and / or an induction heating heater, and may be heated sequentially or simultaneously. Meanwhile, when the heater (183) is an induction heating heater, the aerosol generating device (1) includes a first induction coil and a second induction coil, and the first induction coil and the second induction coil may be arranged at positions corresponding to the longitudinal positions of the first heater and the second heater, respectively. Alternatively, the first heater and the second heater may be arranged at positions corresponding to the longitudinal positions of the first portion and the second portion of one heater (183), respectively.

[0108] Unlike as shown in FIG. 2 or FIG. 3, the heater (182) of FIG. 2 and the heater (183) of FIG. 3 may be included together in the aerosol generating device (1). In this case, the heater (182) may heat the inside of the aerosol generating article (2), and the heater (183) may heat the outside of the aerosol generating article (2).

[0109] According to one embodiment, the aerosol generating device (1) may be provided with an airflow channel through which air flows. For example, the housing (10) may include a structure (e.g., a hole) through which air can be introduced from the outside into the housing (10). The air introduced into the housing (10) may be introduced into the aerosol generating article (2) through the lower end (i.e., the upstream side) of the aerosol generating article (2). The aerosol generated based on the heating of the aerosol generating article (2) may be inhaled into the user's oral cavity through the upper end (i.e., the downstream side) of the aerosol generating article (2) together with the introduced air.

[0110] Figure 4 illustrates a capacitor of a capacitive sensor according to an example.

[0111] According to one embodiment, the aerosol generating device (1) may include a capacitive sensor. The capacitor (or conductor) (190) of the capacitive sensor may be positioned adjacent to the insertion space (20). When the insertion space (20) is cylindrical, the capacitor (190) may be positioned to surround at least a portion of the insertion space (20). For example, the capacitor (190) may be positioned to surround more than half of the circumference of the cylinder.

[0112] According to one embodiment, the capacitor (190) of the capacitive sensor may be positioned between the insertion space (20) and the induction coil (181). For example, the capacitor (190) may be implemented in the form of a wire so as not to shield the magnetic field generated by the induction coil (181) from affecting the heater (182). For example, the wire may be arranged to surround at least a portion of the insertion space (20) in a form that is rolled up and spread out in a single layer (e.g., in a spiral form).

[0113] FIG. 5 is a flowchart of a method for outputting a cleaning notification according to one embodiment.

[0114] Operations 510 to 550 of FIG. 5 may be performed by an aerosol generating device (e.g., an aerosol generating device (1) of FIGS. 1 to 3). The aerosol generating device may include a heater (e.g., a heater (18, 24) of FIGS. 1 to 3), a sensor unit (e.g., a sensor unit (13) of FIGS. 1 to 3), and a control unit (e.g., a control unit (12) of FIGS. 1 to 3).

[0115] In operation 510, the aerosol generating device can measure a first sensor value using a capacitive sensor without an aerosol generating article inserted into the aerosol generating device. For example, the first sensor value may be a value related to a time required to charge and discharge a capacitor of the capacitive sensor. The time required to charge and discharge a capacitor of the capacitive sensor may be an average time measured multiple times. For example, the sensor value measured using the capacitive sensor may increase as a permittivity or dielectric constant around the capacitor increases.

[0116] In one embodiment, the use of an aerosol generating device may increase the amount of foreign matter, such as aerosol droplets, within the insertion space. As the amount of foreign matter increases, the dielectric constant may increase, and thus the measured first sensor value may increase.

[0117] In operation 520, the aerosol generating device can measure a second sensor value using a capacitive sensor while an aerosol generating article is inserted into the aerosol generating device. When the aerosol generating article is inserted into the aerosol generating device, the dielectric constant around the capacitor increases. Accordingly, the second sensor value may be greater than the first sensor value.

[0118] In operation 530, the aerosol generating device can calculate a first value based on the first sensor value and the second sensor value.

[0119] In one embodiment, the aerosol generating device may determine a difference between a first sensor value and a second sensor value as the first value. For example, the first value may be (second sensor value - first sensor value).

[0120] In one embodiment, the aerosol generating device may determine a ratio between a first sensor value and a second sensor value as the first value. For example, the first value may be (second sensor value / first sensor value).

[0121] According to one embodiment, the first value calculated in a state where there is no foreign matter in the insertion space may be greater than the first value calculated in a state where there is a lot of foreign matter in the insertion space. The difference between the permittivity in the first state where there is no cigarette and the permittivity in the second state where there is a cigarette may be reduced due to the foreign matter. Accordingly, the first value calculated in a state where there is a lot of foreign matter may be less than the first value calculated in a state where there is little foreign matter.

[0122] In operation 540, the aerosol generating device can determine whether the first value is less than a first threshold value. The first threshold value can be a preset value for determining whether the current state requires cleaning of the insertion space.

[0123] If the first value is less than the first threshold value, operation 550 may be performed. If the first value is greater than or equal to the first threshold value, operation A may be performed. Operation A may be an operation performed while heating the aerosol generating article. Operation A is described in detail with reference to FIG. 7 below.

[0124] In operation 550, the aerosol generating device may output a notification (or alarm). For example, the notification may indicate that cleaning is required for the insertion space of the aerosol generating item. For example, the notification may be output using a display, a haptic component, and / or an acoustic output component.

[0125] In one embodiment, the aerosol generating device may not heat the aerosol generating item if the current state is determined to require cleaning. For example, the aerosol generating device may ignore a heating command even if it receives one from the user. For example, the aerosol generating device may not automatically heat the aerosol generating item even if the insertion of the aerosol generating item is detected.

[0126] FIG. 6 is a flowchart of a method for determining whether an upper case is coupled to a body, according to an example.

[0127] Operation 610 of FIG. 6 may be performed by an aerosol generating device (e.g., an aerosol generating device (1) of FIGS. 1 to 3). The aerosol generating device may include a heater (e.g., a heater (18, 24) of FIGS. 1 to 3), a sensor unit (e.g., a sensor unit (13) of FIGS. 1 to 3), and a control unit (e.g., a control unit (12) of FIGS. 1 to 3).

[0128] In one embodiment, the aerosol generating device may include an inductance sensor. For example, the aerosol generating device may include a body (e.g., a housing (10) of FIG. 1) and an upper case. The upper case may be detachable so as to allow inspection of the interior of the aerosol generating device. For example, if the heater (182) is arranged to be detachable from the housing (10), the upper case may be coupled to the housing (10) so that the heater (182) does not detach from the housing (10).

[0129] According to one embodiment, the inductance sensor may be placed within the housing (10). The upper case may include a conductor, and when the upper case is coupled to the housing (10), the value of the inductance sensor may change by the proximity of the conductor.

[0130] In operation 610, the aerosol generating device can use an inductance sensor to determine whether the upper case is coupled to the body of the aerosol generating device (e.g., housing (10)).

[0131] If the upper case is coupled to the body, operation 510 described above with reference to FIG. 5 may be performed. If the upper case is not coupled to the body, operation 510 may not be performed. That is, if it is determined that the upper case is coupled to the body, the first sensor value may be measured.

[0132] FIG. 7 is a flowchart of a method for outputting a cleaning notification based on values ​​of a capacitive sensor acquired while an aerosol generating article is heated, according to an example.

[0133] With reference to FIG. 5, the operation A described above may include operations 710 to 760. Operations 710 to 760 may be performed by an aerosol generating device (e.g., an aerosol generating device (1) of FIGS. 1 to 3). The aerosol generating device may include a heater (e.g., a heater (18, 24) of FIGS. 1 to 3), a sensor unit (e.g., a sensor unit (13) of FIGS. 1 to 3), and a control unit (e.g., a control unit (12) of FIGS. 1 to 3).

[0134] In operation 710, the aerosol generating device can obtain a third sensor value of the capacitive sensor measured at a first temperature of the heater while the aerosol generating article inserted into the aerosol generating device is heated using the heater.

[0135] According to one embodiment, the aerosol generating device can periodically measure the temperature of the heater to control the temperature of the heater. The aerosol generating device can periodically measure a sensor value using a capacitive sensor. The aerosol generating device can determine the temperature of the heater corresponding to the measured sensor value. The aerosol generating device can determine the sensor value corresponding to the measured heater temperature.

[0136] In operation 720, the aerosol generating device may acquire a fourth sensor value of the capacitive sensor measured at a second temperature of the heater while the aerosol generating article inserted into the aerosol generating device is heated using the heater. For example, when a puff is generated by a user, the temperature of the heater may temporarily decrease. The temperature of the heater measured at the time when the temperature of the heater temporarily decreases may be the second temperature. For example, when a puff is generated by a user, the permittivity may increase. When the permittivity increases, the fourth sensor value of the capacitive sensor may increase.

[0137] At operation 730, the aerosol generating device can calculate a second value based on the third sensor value and the fourth sensor value.

[0138] In one embodiment, the aerosol generating device may determine the difference between the third sensor value and the fourth sensor value as the second value. For example, the second value may be (fourth sensor value - third sensor value).

[0139] In one embodiment, the aerosol generating device may determine a ratio between a third sensor value and a fourth sensor value as the second value. For example, the second value may be (fourth sensor value / third sensor value).

[0140] In operation 740, the aerosol generating device may determine whether the second value is less than a second threshold value. For example, the second threshold value may be a value calculated or set based on a difference between a first temperature and a second temperature of the heater. The greater the difference between the first temperature and the second temperature, the greater the second threshold value.

[0141] If the second value is less than the second threshold value, operation 750 may be performed. If the second value is greater than or equal to the second threshold value, operation 760 may be performed.

[0142] In operation 750, the aerosol generating device may output a notification (or alarm). For example, the notification may indicate that cleaning is required for the insertion space of the aerosol generating item. For example, the notification may be output using a display, a haptic component, and / or an acoustic output component.

[0143] In one embodiment, the aerosol generating device may not heat additional aerosol generating items after the heating of the aerosol generating item currently in progress has been completed if the current state is determined to require cleaning. For example, the aerosol generating device may ignore a heating command even if it receives a heating command from a user. For example, the aerosol generating device may not automatically perform heating of the aerosol generating item even if the insertion of the aerosol generating item is detected.

[0144] In operation 760, the aerosol generating device can change a third threshold value, which is used to determine whether an aerosol generating article is inserted into the aerosol generating device, based on the second value if the second value is greater than or equal to the second threshold value. For example, the aerosol generating device can determine that an aerosol generating article is inserted if the sensor value of the capacitive sensor is greater than or equal to a preset value (e.g., the third threshold value). Even though an aerosol generating article is not inserted, the third threshold value can be changed (e.g., increased) based on the second value to prevent the sensor value of the capacitive sensor from exceeding the third threshold value as foreign matter increases in the insertion space. For example, the third threshold value can be changed such that the third threshold value increases as the second value increases.

[0145] Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

[0146] For example, it means that a configuration A described in a particular embodiment and / or drawing can be combined with a configuration B described in another embodiment and / or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

[0147] The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. A notification output method performed by an aerosol generating device, An operation of measuring a first sensor value using a capacitance sensor in a state where an aerosol generating article is not inserted into the aerosol generating device; An operation of measuring a second sensor value using the electrostatic capacitance sensor while the aerosol generating article is inserted into the aerosol generating device; and An operation of outputting a notification when a first value calculated based on the first sensor value and the second sensor value is less than a first threshold value. including, How to output notifications.

2. In paragraph 1, The above notice is, Indicating that cleaning of the insertion space of the above aerosol generating article is required, How to output notifications.

3. In paragraph 1, An operation of determining the difference between the first sensor value and the second sensor value as the first value. including more, How to output notifications.

4. In paragraph 1, An operation of determining a ratio between the first sensor value and the second sensor value as the first value. including more, How to output notifications.

5. In paragraph 1, The capacitor of the above capacitance sensor is located between the insertion space of the aerosol generating article and the induction coil. How to output notifications.

6. In paragraph 1, An operation of determining whether the upper case is coupled to the body of the aerosol generating device using an inductance sensor. Including more, If it is determined that the upper case is coupled to the body, the first sensor value is measured, How to output notifications.

7. In paragraph 1, An operation of obtaining a third sensor value of the capacitance sensor measured at a first temperature of the heater while the aerosol generating article inserted into the aerosol generating device is heated using the heater; An operation of obtaining a fourth sensor value of the capacitance sensor measured at a second temperature of the heater while the aerosol generating article is heated; and An operation of outputting the notification when the second value calculated based on the third sensor value and the fourth sensor value is less than the second threshold value. including more, How to output notifications.

8. In paragraph 7, An operation of changing a third threshold value used to determine whether an aerosol generating article is inserted into an aerosol generating device based on the second value, when the second value calculated based on the third sensor value and the fourth sensor value is greater than or equal to the second threshold value. including more, How to output notifications 9. A non-transitory computer-readable recording medium storing instructions that, when executed by a processor, cause the processor to perform the method of claim 1.

10. In the aerosol generating device, capacitive sensor; an induction coil generating an alternating magnetic field; and A control unit for controlling the above aerosol generating device Including, The above control unit, An operation of measuring a first sensor value using the capacitance sensor in a state where an aerosol generating article is not inserted into the aerosol generating device; An operation of measuring a second sensor value using the electrostatic capacitance sensor while the aerosol generating article is inserted into the aerosol generating device; and An operation of outputting a notification when a first value calculated based on the first sensor value and the second sensor value is less than a first threshold value. to perform, Aerosol generating device.

11. In paragraph 10, The capacitor of the above capacitance sensor is located between the insertion space of the aerosol generating article and the induction coil. Aerosol generating device.

12. In paragraph 10, The above control unit, An operation of determining the difference between the first sensor value and the second sensor value as the first value. to do more, Aerosol generating device.

13. In paragraph 10, The above control unit, An operation of determining a ratio between the first sensor value and the second sensor value as the first value. to do more, Aerosol generating device.

14. In paragraph 10, Inductance sensor Including more, The above control unit, An operation of determining whether the upper case is coupled to the body of the aerosol generating device using the above inductance sensor. and perform more, If it is determined that the upper case is coupled to the body, the first sensor value is measured, Aerosol generating device.

15. In paragraph 10, The above control unit, An operation of obtaining a third sensor value of the capacitance sensor measured at a first temperature of the heater while the aerosol generating article inserted into the aerosol generating device is heated using the heater; and An operation of obtaining a fourth sensor value of the capacitance sensor measured at a second temperature of the heater while the aerosol generating article is heated. An operation of outputting the notification when the second value calculated based on the third sensor value and the fourth sensor value is less than the second threshold value. to do more, Aerosol generating device.

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