How to operate an aerosol generation system

Abstract

A method of operating an aerosol generating system (100) is provided. The aerosol generating system comprises a heater, an aerosol generating device (200), and an aerosol generating article (300). The method includes a first determining step of determining whether an aerosol generating article engaged with the aerosol generating device belongs to a first group of aerosol generating articles. Then, if the first determining step determines that the aerosol generating article belongs to the first group of aerosol generating articles, the method includes initiating a step of preheating the heater. Then, the method includes a second determining step of determining whether an aerosol generating article engaged with the aerosol generating device belongs to the first group of aerosol generating articles. An aerosol generating device is also provided.

Description

Technical Field

[0001] The present disclosure relates to a method of operating an aerosol generation system. The present disclosure also relates to an aerosol generation device.

Background Art

[0002] An aerosol generation system typically comprises an aerosol generation device and an aerosol generation article. In use, the aerosol generation article engages with the aerosol generation device, and a heater of the aerosol generation system, for example, the device, heats an aerosol-forming substrate having an aerosol-forming body of the aerosol generation article to generate an aerosol. The generated aerosol can then be conveyed via an airflow path to a mouthpiece or air outlet of the device or the article. The aerosol can be for inhalation by a user.

[0003] Some aerosol generation devices may be usable with many different aerosol generation articles, but provide a better or safer user experience when used with a particular aerosol generation article. For example, some aerosol generation devices can be configured to heat a particular aerosol generation article in a particular way, or for a particular length of time, or to a particular temperature range, in order to provide an optimal experience for the user. Therefore, it may be beneficial to prevent or discourage a user from using some aerosol generation articles with some aerosol generation devices.

Summary of the Invention

[0004] This disclosure provides a method for operating an aerosol generating system. The aerosol generating system may include a heater. The aerosol generating system may include an aerosol generating device. The aerosol generating system may include an aerosol generating article. The aerosol generating article may be engageable with and disengaged from the aerosol generating device. The method may include a first determination step of determining whether an aerosol generating article engaged with the aerosol generating device belongs to a first group of aerosol generating articles. Next, if the first determination step determines that the aerosol generating article belongs to a first group of aerosol generating articles, the method may include a step of preheating the heater. The method may include, for example, a second determination step of determining whether an aerosol generating article engaged with the aerosol generating device belongs to a first group of aerosol generating articles after the step of preheating the heater has been started.

[0005] Therefore, a method for operating an aerosol generating system is provided in a first aspect of the present disclosure. The aerosol generating system comprises a heater, an aerosol generating device, and an aerosol generating article that is engageable with and disengaged from the aerosol generating device. The method includes a first determination step of determining whether an aerosol generating article engaged with the aerosol generating device belongs to a first group of aerosol generating articles. Next, after the first determination step, the method includes starting a step of preheating the heater if the first determination step determines that the aerosol generating article belongs to the first group of aerosol generating articles. Next, after starting the step of preheating the heater, the method includes a second determination step of determining whether an aerosol generating article engaged with the aerosol generating device belongs to a first group of aerosol generating articles.

[0006] Aerosol-generating articles belonging to the first group of aerosol-generating articles may be called genuine aerosol-generating articles. Aerosol-generating articles not belonging to the first group of aerosol-generating articles may be called non-genuine aerosol-generating articles. Ensuring that aerosol-generating articles are genuine can help ensure the quality of the aerosol-generating articles and the safety of the user.

[0007] Advantageously, the first and second determination steps can reduce the likelihood of users using non-genuine aerosol generating articles in the aerosol generator. This can help ensure an optimized user experience.

[0008] This is because, if a user attempts to use a non-genuine aerosol generating article with the aerosol generator, the first determination step may determine that the article does not belong to the first group of articles, and the aerosol generator may not trigger or start the heater preheating step.

[0009] Furthermore, if a user uses a genuine aerosol generating article with the aerosol generator to start preheating the heater, and then replaces the genuine aerosol generating article with a non-genuine aerosol generating article, the second determination step determines that the article does not belong to the first group of articles, and the aerosol generator does not have to allow the use of the device to continue, for example, it does not have to trigger or allow the main heating step of the heater.

[0010] As used herein, the term "apparatus" may refer to an aerosol generating apparatus. The term "article" may refer to an aerosol generating article. The term "substrate" may refer to an aerosol-forming substrate.

[0011] The aerosol generation system may include a heater, an aerosol generating device, and an aerosol generating article.

[0012] The heater may include a heating element. A reference to heating the heater may refer to heating the heating element of the heater. The heating element may be configured to heat to an operating temperature during use. The operating temperature may be at least 100 degrees Celsius. The operating temperature may be at least 200 degrees Celsius. The operating temperature may be at least 300 degrees Celsius.

[0013] The heater may include means for heating a heating element. For example, the heater may include wiring configured to supply current from a power source to the heating element, thereby heating the heating element by resistive heating. Alternatively, or additionally, the heater may include an inductor, such as an inductor coil, configured to generate a fluctuating electromagnetic field, thereby heating the susceptor material of the heating element.

[0014] The heater may be an electrical resistance heater. The heating element may be configured to be heated by electrical resistance.

[0015] The heater may be an induction heater. The heating element may be configured to be heated by induction.

[0016] The heater may be an internal heater. That is, the heater or heating element may be configured to heat the aerosol-forming substrate of the aerosol-generating article from within the aerosol-forming substrate. For example, an aerosol generator may be equipped with a heater, and the heater may be equipped with a heating blade, pin, or rod that penetrates the aerosol-forming substrate and is electrically resistively heated or inductively heated during use. The heating blade, pin, or rod may be a heating element or contain a heating element. Alternatively, the aerosol-generating article may be equipped with an inductive heating element embedded in the aerosol-forming substrate of the article, and the aerosol generator may be configured to inductively heat the inductive heating element during use by using an inductor, for example, an inductor coil capable of generating a fluctuating electromagnetic field.

[0017] The heater may be an external heater. That is, the heater may be configured to heat the aerosol-forming substrate of the aerosol-generating article from outside the aerosol-forming substrate. The aerosol generator may also include a heater, which may be arranged to surround the aerosol-generating article in order to heat the aerosol-generating article. For example, the heater may include a substantially tubular heating element that surrounds the aerosol-forming substrate, such as a tubular substrate, when in use.

[0018] The heater may be for heating at least a portion of an aerosol-generating article that is releasably engaged with an aerosol generator, or for heating the aerosol-forming substrate of the aerosol-generating article.

[0019] The aerosol generator may include a heater. For example, the device may include a heating element in the form of a pin, blade, or rod. The heating element may be electrically connected to the power supply of the device. The heating element may be configured to penetrate the aerosol-forming substrate of the aerosol-generating article when in use. For example, the device may include a heating element formed to surround or include the aerosol-generating article. The heating element may be configured to heat the aerosol-forming substrate from the outside when in use.

[0020] The aerosol generator may include means for heating a portion of the heater, for example, the heating element of the heater. The aerosol generating article may include means for heating a portion of the heater, for example, the heating element of the heater. For example, the aerosol generating article may include an induction heating element or susceptor embedded in the aerosol-forming substrate of the article, and the aerosol generator may include an inductor, such as an inductor coil, configured to generate a fluctuating electromagnetic field and to induce heating of the induction heating element or susceptor during use. The preheating step may include, for example, supplying current to the heater from a power source. For example, the preheating step may include supplying current to an electrically resistive heating element to heat the heating element, or supplying alternating current to an inductor to generate a fluctuating magnetic field that raises the temperature of the susceptor material within the heating element. This step may include raising the temperature of the heater, or the heating element of the heater, to an operating temperature. This step may include raising the temperature of the heater, or the heating element of the heater, to a temperature of, for example, room temperature to at least 100 degrees Celsius. This step may include raising the temperature of the heater, or the heating element of the heater, from, for example, room temperature to at least 200 degrees Celsius. This step may also include raising the temperature of the heater, or the heating element of the heater, from, for example, room temperature to at least 300 degrees Celsius.

[0021] The entire process of preheating the heater from start to finish may take at least 5 seconds. The entire process of preheating the heater from start to finish may take at least 10 seconds. The entire process of preheating the heater from start to finish may take at least 20 seconds. The entire process of preheating the heater from start to finish may take 100 seconds or less. The entire process of preheating the heater from start to finish may take 60 seconds or less. The entire process of preheating the heater from start to finish may take 50 seconds or less. The entire process of preheating the heater from start to finish may take 40 seconds or less. The entire process of preheating the heater from start to finish may take 30 seconds or less. The entire process of preheating the heater from start to finish may take between 10 and 60 seconds, or between 20 and 40 seconds.

[0022] The process of preheating the heater may be considered to have started when current is supplied to the heater, or when current exceeding a certain threshold is supplied to the heater, or when the heater or heating element reaches a certain temperature.

[0023] The aerosol generator may have a cavity. The device may have a housing. The housing may define the cavity. The housing may be configured to hold during use. The cavity may be for receiving at least a portion of the aerosol generating article.

[0024] Engaging an article with a device may involve receiving at least a portion of the article into a cavity in the device, or may include receiving at least a portion of the article into a cavity in the device.

[0025] The aerosol generator may be equipped with an identifier. The identifier may be connected to a controller, or may be operated by the controller as appropriate. The identifier may be for determining, or configured to determine, whether an aerosol generating article engaged with the aerosol generator belongs to a first group of aerosol generating articles. The identifier may be for distinguishing, or configured to distinguish, a first group of aerosol generating articles used in the device from a second group of aerosol generating articles used in the device. The identifier may perform a first determination step. The identifier may perform a second determination step.

[0026] The heating element of the device may extend within the cavity, for example, in the longitudinal direction from the base of the chamber defining the cavity. The heating element may be configured to penetrate the aerosol-forming substrate of the article when the article is received into the cavity.

[0027] A system, such as a device, may comprise an air inlet. For example, the housing of the device may define an air inlet. The airflow path may be formed from the air inlet to the cavity of the device. A system, such as an article, may comprise an air outlet. For example, the mouthpiece of the article may comprise an air outlet. In use, the airflow path may be defined between the air inlet and the air outlet. For example, in use, the user may inhale an article received within the cavity of the device, and this inhalation may cause air to flow through the air inlet of the device, then into the cavity of the device, then through the article engaged with the device, then out through the air outlet of the mouthpiece of the article, and then into the user's mouth.

[0028] The article of the system may belong to a first group of articles. The article may comprise an aerosol-forming substrate. The aerosol-forming substrate may be a solid aerosol-forming substrate. The aerosol-forming substrate may be a gel. The aerosol-forming substrate may be a liquid.

[0029] As used herein, the term "aerosol-forming substrate" may refer to a substrate having the ability to release a volatile compound capable of forming an aerosol. The volatile compound may be released by heating or burning the aerosol-forming substrate.

[0030] The aerosol-forming substrate may contain nicotine. The aerosol-forming substrate may contain plant-derived materials. The aerosol-forming substrate may contain homogenized plant-derived materials. The aerosol-forming substrate may contain tobacco. The aerosol-forming substrate may contain tobacco-containing materials. The tobacco-containing materials may contain volatile tobacco flavor compounds. These compounds may be released from the aerosol-forming substrate upon heating. The aerosol-forming substrate may contain homogenized tobacco materials. The aerosol-forming substrate may contain other additives and components such as flavoring agents. The liquid aerosol-forming substrate may contain one or more of water, a solvent, ethanol, a plant extract, and a natural or artificial flavor. The aerosol-forming substrate may contain an aerosol former. Examples of suitable aerosol formers are glycerin, glycerol, and propylene glycol.

[0031] The aerosol-generating article may comprise a hollow tubular element. The aerosol-generating article may comprise an aerosol cooling element. The aerosol-generating article may comprise a mouthpiece. The aerosol-generating article may comprise an outer wrapper, for example, a paper wrapper.

[0032] The aerosol-generating article may comprise, arranged coaxially and in sequence and surrounded by an outer wrapper, an aerosol-forming substrate, a hollow tubular element, an aerosol cooling element, and a mouthpiece.

[0033] During use, the article may engage with the device, for example, by being received into a cavity in the device. Once the article is received into the cavity, a heating element, for example in the form of a heating blade extending longitudinally from the base of the cavity, may penetrate the aerosol-forming substrate of the article. The user may then inhale through the mouthpiece of the article. This causes air to flow through the air intake of the device. This airflow may be detected by the device's smoke detection mechanism. This can trigger the operation of the heating element. Alternatively, the heater may be manually activated by the user, for example, using a button. The heating element may then be heated. This may heat the aerosol-forming substrate of the article so that volatile compounds are released from the aerosol-forming substrate. Due to the user's inhalation, air may flow through the air intake and then through the aerosol-forming substrate. The volatile compounds released by the aerosol-forming substrate may be carried along with the airflow. The air and carried-along compounds may then flow through a hollow tubular element and an aerosol cooling element. During this time, the volatile compounds may cool and condense to form an aerosol. The aerosol may then flow into the user's mouth, for example, through the mouthpiece of the item.

[0034] As will be understood by those skilled in the art after reading this disclosure, the above paragraphs describe the use of a specific system, but other systems may also implement the present invention.

[0035] The device may be equipped with a power supply. The power supply may be for supplying power to a heating element, for example, means for heating the heating element and one or both of the heating elements. The power supply may be for supplying power to any or all of the components of the device that require power. The power supply may comprise one or more power units. Different power units may be for supplying power to different components.

[0036] The apparatus may include a controller. The controller may be connected to any or all of the electrical components of the apparatus. As will be understood by those skilled in the art after reading this disclosure, the controller may control the operation of various components of the apparatus. The controller may, for example, control the supply of power from a power source to any or all of the components of the apparatus that require power.

[0037] The first group of aerosol-generating articles may include, or consist of, aerosol-generating articles configured for use in an aerosol generator, or designed or optimized in any way. The first group of aerosol-generating articles may include, or consist of, aerosol-generating articles having one or more specific brands, one or more specific types or compositions of aerosol-forming substrates, a specific manufacturing date, a specific range of manufacturing dates, a specific batch number, a specific range of batch numbers, a specific date of use, or a specific range of dates of use.

[0038] The articles of the system may belong to the first group of articles. The articles may include an aerosol-forming substrate. The aerosol-forming substrate may be a solid aerosol-forming substrate.

[0039] The aerosol generating article may include an aerosol-forming substrate. The aerosol generating article may include a hollow tubular element. The aerosol generating article may include an aerosol cooling element. The aerosol generating article may include a mouthpiece. The aerosol generating article may include an outer wrapper, such as a paper wrapper.

[0040] The aerosol generating article may comprise an aerosol-forming substrate, a hollow tubular element, an aerosol cooling element, and a mouthpiece, arranged coaxially in sequence and surrounded by an outer wrapper. The aerosol generating article may have any shape.

[0041] The aerosol generator may remain idle until the aerosol-generating article engages with the aerosol generator.

[0042] The method may include, or may be performed after, the engagement of the aerosol generating article with the aerosol generating device. This engagement may occur before the first determination step.

[0043] Engaging an article with a device may include, or consist of, receiving at least a portion of the article into a cavity.

[0044] The method may include, for example, activating the device using a user interface such as a button on the device. This step may transition the device from an idle state to an active state. This step may occur after the aerosol generating article has engaged with the aerosol generating device. This step may occur before the first determination step. The transition from idle to active state may cause electrical perturbations, such as voltage fluctuations across the electrical components of the device.

[0045] The device may include an item presence detector. The identifier may include an item presence detector. The identifier may function as an item presence detector. The item presence detector may be connected to a controller and may be optionally operated by the controller. The item presence detector may be configured to detect, for example, the presence of an aerosol generating article that engages with an aerosol generator, which is received in a cavity of the device. The method may include, for example, an presence determination step of determining whether an aerosol generating article is engaged with an aerosol generator before a first determination step. Optionally, the first determination step may be performed only if the presence determination step determines that an aerosol generating article is engaged with an aerosol generator. The presence determination step may be performed by an item presence detector or an identifier. The presence determination step may be triggered by transitioning the device from an idle state to an active state, or may be performed automatically after the device has been transitioned from an idle state to an active state.

[0046] One or both of the article presence detector and / or identifier may detect the presence of an article by emitting light, then receiving the light reflected or emitted by the article, and optionally analyzing the received light.

[0047] One or both of the article presence detector and the identifier may include an emitter, such as a light source. The light source may be an infrared light source, such as an infrared light-emitting diode, or may comprise an infrared light source. One or both of the first and second determination steps may include illuminating the article to be engaged with the device with light from the light source. The emitter may be connected to a controller and may be optionally operated by the controller.

[0048] One or both of the article presence detector and the identifier may include a receiver, such as an optical receiver. The receiver may be a photodiode or include a photodiode. The receiver may be configured to receive light emitted by an emitter. The receiver may be configured to receive light reflected or emitted by an article engaged with the device. One or both of the first and second determination steps may include the optical receiver receiving light reflected or emitted by the aerosol-generating article after the light source has illuminated the aerosol-generating article with light. The receiver may be connected to a controller and may be optionally operated by a controller.

[0049] One or both of the first and second determination steps may include analyzing the light received by the optical receiver to determine whether the aerosol generator belongs to a first group of aerosol-generating articles. This analysis may include comparing the details of the received light with the input in a lookup table. This analysis may be performed by a controller.

[0050] One or both of the item presence detector and the identifier may be particularly sensitive to electrical perturbations, such as voltage fluctuations. For example, the emitters of one or both of the item presence detector and the identifier may be particularly sensitive to electrical perturbations.

[0051] In particular, one or both of the item presence detector and identifier emitters may have a continuous forward current of 2 to 100 milliamperes. One or both of the item presence detector and identifier emitters may have a continuous forward current of 10 or 50 milliamperes. One or both of the item presence detector and identifier emitters may have a continuous forward current of about 20 milliamperes. In this context, continuous forward current may refer to the maximum current that can be continuously supplied to the emitter without damaging the emitter or without a significant risk of damaging the emitter. In other words, if the continuous forward current is about 20 milliamperes, continuously supplying the emitter with more or significantly more milliamperes than 20 milliamperes, i.e., for a long period of time, such as several seconds or several minutes, may damage the emitter or is likely to damage it.

[0052] Furthermore, one or both of the item presence detector and / or identifier emitters may have a peak forward current of 0.1 to 10 amperes. One or both of the item presence detector and / or identifier emitters may have a peak forward current of 0.5 to 5 amperes. One or both of the item presence detector and / or identifier emitters may have a peak forward current of about 1 ampere. One or both of the item presence detector and / or identifier emitters may have a corresponding time limit of 1 microsecond to 10 milliseconds. One or both of the item presence detector and / or identifier emitters may have a time limit of 10 microseconds to 1 millisecond. In this context, peak forward current and time limit may refer to the maximum current that can be supplied to the emitter over the time limit without damaging the emitter or without a significant risk of damaging the emitter. In other words, if the peak forward current is about 1 ampere and the corresponding time limit is 1 millisecond, supplying more than 1 ampere to the emitter for more than 1 millisecond may or is likely to damage the emitter.

[0053] The controller, or its software such as firmware, may control the current supplied to the emitter during use. This can prevent damage to the current supplied to the emitter.

[0054] The aerosol generator may be equipped with a high-side switch. The high-side switch may be connected to the controller or may be operated by the controller at will. Advantageously, the high-side switch can help protect the emitter in the event that the controller malfunctions and fails to prevent damage to the current supplied to the emitter. The controller may have software bugs. Therefore, the high-side switch can help reduce the emitter's sensitivity to electrical perturbations.

[0055] The device's power supply may be for supplying power to the emitter. A high-side switch may be located between the power supply and the emitter. The high-side switch may be configured to electrically connect the power supply to the emitter.

[0056] The high-side switch may be movable between the open and closed positions. When the high-side switch is in the open position, the emitter may not be electrically connected to the power supply. When the high-side switch is in the open position, the electrical circuit comprising the high-side switch and emitter may be broken. The power supply may not be able to supply power to the emitter when the high-side switch is in the open position. When the high-side switch is in the closed position, the emitter may be electrically connected to the power supply. When the high-side switch is in the open position, the electrical circuit comprising the high-side switch and emitter may be complete or not broken. The power supply may be able to supply power to the emitter when the high-side switch is in the closed position.

[0057] In this specification, enabling or closing a switch, such as a high-side switch, may refer to moving the switch from the open position to the closed position. Deactivating or opening a switch may refer to moving the switch from the closed position to the open position.

[0058] The high-side switch may include a chronometer, or may be coupled to a chronometer. The chronometer may include a timer.

[0059] The chronometer may be connected to the controller, or it may be operated by the controller as needed. The high-side switch may be connected to the chronometer, or it may be operated by the chronometer as needed.

[0060] A chronometer may also be a hardware chronometer. In this context, the term hardware chronometer can refer to a chronometer that can perform actions such as opening and closing switches without instructions from a controller. Therefore, a chronometer may be able to open a high-side switch without instructions from a controller. This will be explained in more detail below.

[0061] The chronometer may be configured to determine the period during which the emitter is continuously supplied with current, or the period during which it is supplied with a current greater than a threshold. The chronometer may start timing or start a period when the current supplied to the emitter exceeds a threshold. The chronometer may stop timing, or end or reset a period when the current supplied to the emitter falls below a second threshold. The threshold and the second threshold may be equal or different. One or both of the threshold and the second threshold may be zero amperes, or less than or equal to 50 percent of the peak forward current of the emitter. One or both of the threshold and the second threshold may be at least 0.1 amperes or 0.5 amperes. One or both of the threshold and the second threshold may be 10 amperes or less than or equal to 5 amperes. One or both of the threshold and the second threshold may be between 0.1 and 10 amperes, or between 0.5 and 5 amperes, or about 1 ampere.

[0062] When a predetermined period is reached, the high-side switch may move from the closed position to the open position. For example, when a predetermined period is reached, the controller or chronometer may cause the high-side switch to open. Opening the high-side switch may break the electrical connection between the power supply and the emitter, stopping the flow of current to the emitter. Advantageously, this can protect the emitter.

[0063] A chronometer is a hardware chronometer, and it is preferable that the high-side switch be opened even without instructions from the controller. Advantageously, this may mean that the high-side switch can be opened to protect the emitter even if the controller fails.

[0064] The specified period may be based on the emitter's time limit. The specified period may be greater than the emitter's time limit, or at least 1.1 times, 2 times, 5 times, or 10 times. The specified period may be at least 1, 10, 100, or 1,000 microseconds. The specified period may be 10, 5, or 1 millisecond or less. The specified period may be 1 microsecond to 10 milliseconds, or 10 microseconds to 1 millisecond.

[0065] The chronometer may be activated by a controller. Once activated, the chronometer can function without any further input from the controller. When activated, the chronometer may be configured to move the high-side switch from the closed position to the open position without instruction from the controller, for example, if the current supplied to the light source, or the indication of the current supplied to the light source, exceeds a threshold for a predetermined period of time.

[0066] The aerosol generator may be equipped with a low-side switch. The low-side switch may be connected to a controller or may be operated by the controller at will. Advantageously, the low-side switch can help protect the emitter in the event of a problem with the controller, for example, a software bug. Thus, the low-side switch can help reduce the emitter's sensitivity to electrical perturbations.

[0067] A low-side switch may be configured to electrically connect its emitter to earth. As used herein, the term earth may refer to electrical earthing.

[0068] The low-side switch may be movable between the open and closed positions. When the low-side switch is in the open position, the emitter may not be electrically connected to earth. When the low-side switch is in the open position, the electrical circuit comprising the low-side switch and emitter may be broken. The power supply may not be able to supply power to the emitter when the low-side switch is in the open position. When the low-side switch is in the closed position, the emitter may be electrically connected to earth. When the low-side switch is in the open position, the electrical circuit comprising the low-side switch and emitter may be complete or not broken. The power supply may be able to supply power to the emitter when the low-side switch is in the closed position.

[0069] The low-side switch may include a chronometer or be coupled to a chronometer. The low-side switch may be coupled to a high-side switch. The low-side switch may be coupled to a controller and may optionally be operated by the controller. The low-side switch may be coupled to a chronometer and may optionally be operated by the chronometer.

[0070] When a predetermined period is reached, the low-side switch may move from the closed position to the open position. For example, when a predetermined period is reached, the controller or chronometer may cause the low-side switch to open.

[0071] If the device includes both a high-side switch and a low-side switch, both the high-side and low-side switches may move from the closed position to the open position when a predetermined period has been reached. Advantageously, this can provide the emitter with additional protection from overcurrent, because even if one of the high-side or low-side switches fails, the other can stop the excess current flowing through the emitter.

[0072] The method may include enabling the high-side switch. This may include moving the high-side switch from the open position to the closed position. This may occur when the device transitions from an idle state to an active state, or afterward. This may be triggered by the device transitioning from an idle state to an active state, or it may occur automatically afterward. When the device is idle, the high-side switch may be disabled.

[0073] The method may include enabling the low-side switch. This may include moving the low-side switch from the open position to the closed position. This may occur when the device transitions from an idle state to an active state, or afterward. This may be triggered by the device transitioning from an idle state to an active state, or it may occur automatically afterward. When the device is idle, the low-side switch may be disabled.

[0074] The method may include activating the power supply. This may occur when the device transitions from an idle state to an active state, or afterward. This may be triggered by the device transitioning from an idle state to an active state, or it may occur automatically thereafter. This may occur before or after activating one or both of the high-side and low-side switches.

[0075] Following the activation of the power supply, electrical perturbations such as voltage fluctuations may exist within the electrical components of the device.

[0076] The method may include allowing a period for electronic equipment to stabilize. This may be triggered by activating the power supply or may occur automatically after the power supply has been activated. During this period, the device may prevent further use of the device, such as heating the heater or operating the emitter. When setting this period, a compromise is necessary: ​​there is a minimum time required for electronic equipment to stabilize, but if that time is too long, the user may become frustrated. The stabilization period may be at least 5, 10, 50, 100, 500, 1,000, or 5,000 microseconds. The stabilization period may be 500, 100, or 75 milliseconds or less. The stabilization period may be 5 microseconds to 500 milliseconds, or 100 microseconds to 100 milliseconds, or 5 to 100 milliseconds.

[0077] The method may include, for example, detecting the presence of an aerosol generating article that engages with an aerosol generator, received within a cavity of the device. That is, the method may include determining whether an aerosol generating article is engaged with an aerosol generator received within a cavity of the device. This step may occur after allowing a period for the stabilization of the electronic equipment, for example, being triggered thereby or occurring automatically thereafter. This step may include supplying current to the emitter, for example, from a power supply. This current may be at least 1 milliampere. This current may be at least 2 milliamperes. This current may be at least 10 milliamperes. Alternatively, or additionally, this current may be 200 milliamperes or less. Alternatively, or additionally, this current may be 100 milliamperes or less. Alternatively, or additionally, this current may be 50 milliamperes or less. The current may preferably be about 20 milliamperes. This current may be supplied for at least 100 nanoseconds. This current may be supplied for at least 500 nanoseconds. This current may be supplied for at least 1,000 nanoseconds. This current may be supplied for at least 5,000 nanoseconds. This current may be supplied for at least 10,000 nanoseconds. This current may be supplied for 2 seconds or less. This current may be supplied for 1 second or less. This current may be supplied for 0.5 seconds or less. This current may be supplied for 0.1 seconds or less. This current may be supplied for 0.05 seconds or less. This current may be supplied for 0.02 seconds or less. The current may preferably be supplied for 100 nanoseconds to 2 seconds, or 10 microseconds to 2 milliseconds.

[0078] Light emitted by the emitter can be reflected from the object and received by the receiver. This can enable an object presence detector to detect the presence of the object.

[0079] If an article presence detector or identifier detects the presence of an article (i.e., determines that the article is engaged with the device), a first determination step may be performed to determine whether the aerosol-generating article engaged with the aerosol generator belongs to a first group of aerosol-generating articles. The first determination step may be triggered by the detection of the article's presence or may occur automatically after the detection of the article's presence. Optionally, the first determination step is performed only if the article presence detector or identifier detects the presence of an article (i.e., determines that the article is engaged with the device). The first determination step may be performed by the identifier. Specifically, an emitter, such as a light source, may illuminate the article engaged with the device. A receiver, such as an optical receiver or photodiode, may then receive the light reflected or emitted by the article. Based on the light received by the receiver, the identifier may determine whether the article engaged with the device belongs to a first group of articles.

[0080] The first group of articles may include multiple subgroups. One or both of the first and second determination steps may include determining which of the multiple subgroups an aerosol-generating article, if there are multiple subgroups, the article engaging with the aerosol generator belongs to. This may be done in the same way as determining whether the article belongs to the first group. For example, this may be done based on the light received by the receiver after being reflected or emitted by the article.

[0081] If the item presence detector or identifier does not detect the presence of an item (i.e., determines that the item is not engaged with the device), the first determination step of determining whether the aerosol-generating item engaged with the aerosol generator belongs to the first group of aerosol-generating items may not be performed. An item presence detector or identifier that detects the absence of an item (i.e., determines that the item is not engaged with the device) may cause the device to return to an idle state.

[0082] The articles of the system may be articles belonging to a first group of articles. Each article of the system, or each article in the first group of articles, may have a marker. Articles in different subgroups of the first group may have different markers.

[0083] Any suitable form of marker may be used. The marker may be detectable by an identifier. The identifier may use the marker of an article to determine whether the article belongs to the first group. The identifier may use the marker of an article to determine, if there are subgroups, which subgroup of the first group the article belongs to.

[0084] Any suitable marker may be used. The marker may include a visual indicator such as a barcode.

[0085] The marker may include a tagant. The article may comprise at least one component into which the tagant is incorporated within the material of at least one component. The tagant may have identifiable spectroscopic features. By using a tagant incorporated within the material of the article's components, it is advantageous that the tagant may not be removed from the components after manufacturing. In this way, the tamper-proofing and counterfeiting difficulties of aerosol-generating articles can be improved.

[0086] Tagant can be incorporated into any component of aerosol-generating articles, including but not limited to paper such as packaging paper, filters, chipping paper, tobacco, tobacco packaging paper, coatings, binders, fixatives, adhesives, inks, foam, hollow acetate tubes, packaging, and lacquers. Tagant can be incorporated into components by adding it during the manufacturing of the material, for example by adding it to a paper slurry or paste before drying, or by coating or spraying it onto the component. Generally, small amounts of Tagant, in the nanogram range, are incorporated into the component. For example, when Tagant is sprayed onto a surface, the sprayed solution may incorporate Tagant at concentrations of 1 ppm to 1000 ppm.

[0087] To enable more accurate identification of tagants, they may possess spectroscopic features that allow them to be identified in absorption. When a tagant is illuminated by an emitter or identifier light source, it absorbs a specific wavelength or set of wavelengths, and the wavelengths of the light subsequently received by the identifier receiver or photosensor may allow the tagant to be identified based on wavelengths where the identifier does not exist. This information may then be used to determine whether an article belongs to a first group of articles.

[0088] The physical and chemical structure of the Tagant can be controlled so that the wavelength of light absorbed is set as required. In one preferred embodiment, the wavelength of light absorbed is not within the visible spectrum. Preferably, the wavelength of light absorbed is in the infrared and ultraviolet ranges, or both.

[0089] In addition to, or instead of, having identifiable spectroscopic features in absorption, the tagant may also have identifiable spectroscopic features in emission. When the tagant is illuminated by an emitter or light source, the light excites the tagant, and it is preferable that the tagant emits light of at least one wavelength shifted from the wavelength of the illumination light. As understood, this may be in the form of photoluminescence, which may be phosphorescence or fluorescence. The spectroscopic features can be controlled by controlling the physical and chemical structure of the tagant. In some embodiments, the identifiable features may depend on the time response of the emission associated with excitation, or the decay rate of the emission after excitation.

[0090] In a preferred embodiment, the wavelength of the Tagant synchrotron radiation is not in the visible spectrum. The wavelength of the Tagant synchrotron radiation is in the infrared range, the ultraviolet range, or both.

[0091] In a preferred embodiment, the tagant is distributed throughout the material. By distributing the tagant throughout the material, the orientation of the aerosol-generating articles within the aerosol generator may not be important. This makes the system easier for the user to use. Furthermore, by distributing the tagant throughout the material, it may become more difficult to completely remove the tagant, thus improving the prevention of tampering with the articles. In a particularly preferred embodiment, the tagant is distributed substantially uniformly throughout the material.

[0092] Different articles belonging to the first group may include different tagants, or different combinations of tagants. These tagants or combinations of tagants may have different and identifiable spectroscopic features. This may enable identifiers to distinguish and operate on different types of articles or subgroups belonging to the first group.

[0093] Preferably, the tagant is stable up to high temperatures of 1,500°C. As used herein, the term "stable" means that the tagant has consistent spectroscopic characteristics and does not decompose. Providing a tagant that remains stable at high temperatures allows for the use of standard manufacturing processes when producing aerosol-generating articles.

[0094] The material for the aerosol-generating component incorporating Tagant can be manufactured by adding Tagant as a component to the slurry used to produce the material. The slurry can then be formed and dried, for example by molding, to produce a material such as paper or wrapper material.

[0095] The tagant may be configured such that it is deactivated at the normal operating temperature of the aerosol-generating article. As used herein, deactivation means that the tagant no longer has any distinguishable spectroscopic features. During use, the temperature required to generate an aerosol is higher than the temperature required to deactivate the tagant. In this way, the aerosol generator can determine whether the aerosol-generating article has been used previously and has operated accordingly. For example, if the tagant is deactivated, the first determination step may determine that the article does not belong to the first group of articles. Thus, an article in the first group of articles may no longer be in the first group of articles after use. The temperature range of the aerosol-generating article components during normal operation is preferably about 50°C to about 300°C, depending on the location and type of the components of the aerosol generator. Therefore, it is preferable that the tagant is deactivated at a temperature of about 50°C to about 500°C. It is more preferable that the tagant is deactivated at a temperature of about 70°C to about 100°C.

[0096] Tagant can be inactivated by decomposition at the high temperatures described above, so that it no longer possesses any discernible spectroscopic features. Alternatively, Tagant can be inactivated by coating it with additional temperature-dependent additives. These additional additives may become opaque at high temperatures or change color to obscure the features of Tagant.

[0097] As described above, Tagant is preferably chemically stable, similar to how Tagant is stable at high temperatures. It is preferable that Tagant is chemically stable enough not to decompose during the manufacture of the material or component. Thus, it is preferable that Tagant is stable when exposed to liquid water, water vapor, other commonly used solvents, when dried, when the material is physically transformed into the form of its components, when exposed to rising temperatures, and when exposed to falling temperatures. Therefore, during the material manufacturing process described above, Tagant does not decompose and maintains its identifiable spectroscopic characteristics.

[0098] Tagant is preferably in powder form. The advantage of tagant powder is that it is more easily incorporated into the material. Tagant is preferably a powder consisting of at least one of rare earth elements, actinide metal oxides, and ceramics. Lanthanides are preferred as the rare earth elements.

[0099] Tagant's markers or identifiable spectroscopic features may be associated with one or more of the type of aerosol-generating article, the type of aerosol-forming substrate, the date of manufacture, the place of manufacture, the batch number, other manufacturing details, and the expiration date.

[0100] The first determination step may include, for example, supplying current to the emitter from a power source. This current may be at least 100 milliamperes. This current may be at least 200 milliamperes. This current may be at least 500 milliamperes. This current may be at least 800 milliamperes. Alternatively, or additionally, this current may be 2,000 milliamperes or less, or 1,000 milliamperes or less. The current may preferably be 500 to 2,000 milliamperes. The current may preferably be 800 to 1,000 milliamperes. This current may be supplied for at least 20 microseconds. This current may be supplied for at least 50 microseconds. This current may be supplied for at least 100 microseconds. This current may be supplied for at least 200 microseconds. This current may be supplied over 20, 10, 5, or 2 milliseconds or less. The current may preferably be supplied for 20 microseconds to 10 milliseconds. The current may preferably be supplied for a period of 20 microseconds to 2 milliseconds.

[0101] The aerosol generator may be equipped with a heater high-side switch. The heater high-side switch may be connected to a controller or may be operated by the controller as needed. Advantageously, the heater high-side switch can help prevent excessively large currents from passing through the heater for excessively long periods. The heater high-side switch functions in a similar manner to the high-side switch described above, which is used to protect the emitter.

[0102] The power supply may be for supplying power to the heater. The heater high-side switch may be located between the power supply and the heater. The heater high-side switch may be configured to electrically connect the power supply to the heater. When the device is idle, the heater high-side switch may be deactivated.

[0103] The operation of a heater high-side switch may be similar to that of a high-side switch. The heater high-side switch may be movable between an open position and a closed position. When the heater high-side switch is in the open position, the heater may not be electrically connected to the power supply. That is, the power supply may not be able to supply power to the heater when the heater high-side switch is in the open position. When the heater high-side switch is in the closed position, the heater may be electrically connected to the power supply. That is, the power supply may be able to supply power to the heater when the heater high-side switch is in the closed position.

[0104] The heater high-side switch may be equipped with a heater chronometer or may be connected to a heater chronometer. The heater chronometer may be connected to a controller or may be operated by the controller as needed. The heater high-side switch may be connected to a chronometer or may be operated by the chronometer as needed.

[0105] A heater chronometer may also be a hardware chronometer. Therefore, a heater chronometer may be able to operate the heater high-side switch without instructions from the controller.

[0106] A heater chronometer may be configured to determine a heater period in which the heater is continuously supplied with current, or a heater period in which the heater is supplied with a current greater than a heater threshold. The heater chronometer may start timing or start a heater period when the current supplied to the heater exceeds a heater threshold. The heater chronometer may end timing, or end or reset a heater period, when the current supplied to the heater falls below a second heater threshold. The heater threshold and the second heater threshold may be equal or different.

[0107] When the heater period reaches a predetermined heater period, the heater high-side switch may move from the closed position to the open position. For example, when the heater period reaches a predetermined heater period, the controller or heater chronometer may cause the heater high-side switch to open.

[0108] A heater chronometer is a hardware chronometer, and it is preferable that it opens the heater high-side switch even without instructions from the controller. Advantageously, this may mean that the heater high-side switch can be opened to protect the heater even if the controller fails.

[0109] The aerosol generator may be equipped with a heater low-side switch. The heater low-side switch may be connected to a controller, or it may be operated by the controller as needed. When the device is idle, the heater low-side switch may be disabled.

[0110] The heater lowside switch may be configured to electrically connect the heater to ground.

[0111] The operation of the heater low-side switch may be similar to that of a regular low-side switch. The heater low-side switch may be movable between the open and closed positions. When the heater low-side switch is in the open position, the heater may not be electrically connected to ground. When the heater low-side switch is in the open position, the electrical circuit comprising the heater low-side switch and the heater may be broken. The power supply may not be able to supply power to the heater when the heater low-side switch is in the open position. When the heater low-side switch is in the closed position, the heater may be electrically connected to ground. When the heater low-side switch is in the open position, the electrical circuit comprising the heater low-side switch and the heater may be complete or not broken. The power supply may be able to supply power to the heater when the heater low-side switch is in the closed position.

[0112] The heater low-side switch may be equipped with a heater chronometer or may be connected to a heater chronometer. The heater low-side switch may be connected to a controller or may be operated by the controller as needed. The heater low-side switch may be connected to a heater chronometer or may be operated by the heater chronometer as needed.

[0113] When the heater period reaches a predetermined duration for the heater, the heater low-side switch may move from the closed position to the open position. For example, when the heater period reaches a predetermined duration for the heater, the controller or heater chronometer may open the heater low-side switch.

[0114] The chronometer is a hardware chronometer, and it is preferable that the low-side switch be opened without instructions from the controller. Advantageously, this may mean that even if the controller fails, the heater low-side switch may be opened to protect the heater.

[0115] Therefore, when the heater period reaches a predetermined time for the heater, both the heater high-side switch and the heater low-side switch may move from the closed position to the open position. This may provide the heater with further protection from overcurrent.

[0116] The method may include activating the heater high-side switch. This may include moving the heater high-side switch from the open position to the closed position. This may be done when the device transitions from an idle state to an active state, or thereafter, for example, after detecting the presence of an article, or after a first determination step. This may be triggered by the device transitioning from an idle state to an active state, or by the detection of the presence of an article, or by a first determination step, and may occur automatically thereafter.

[0117] The method may include activating the low-side switch. This may include moving the heater low-side switch from the open position to the closed position. This may be done when the device transitions from an idle state to an active state, or thereafter, for example, after detecting the presence of an item, or after a first determination step. This may be triggered by the device transitioning from an idle state to an active state, or by the detection of the presence of an item, or by a first determination step, and may occur automatically thereafter.

[0118] The method may include, for example, preheating the heater after a first determination step, or after activating one or both of the heater high-side switch and the heater low-side switch. This may be called a preheating step. Optionally, the preheating step is initiated only if the first determination step determines that the article engaged with the device belongs to a first group of articles. The preheating step may be triggered by the first determination step determining that the article engaging with the device belongs to a first group, or it may be initiated automatically after the first determination step.

[0119] If the first determination step determines that the aerosol generating article to be engaged with the aerosol generator does not belong to the first group of aerosol generating articles, the method may include preventing the start of the heater preheating step until the first determination step is repeated and it is determined that the aerosol generating article to be engaged with the aerosol generator belongs to the first group of aerosol generating articles. If the first determination step determines that the aerosol generating article to be engaged with the aerosol generator does not belong to the first group of aerosol generating articles, the device may return to an idle state.

[0120] The preheating process may depend on the subgroup to which the articles engaged with the apparatus belong, or on the subgroup determined by a first determination process. The preheating process may differ for articles belonging to different subgroups. For example, the temperature profile of a heater or heating element during the preheating process may differ for different subgroups. This may be controlled by the current supplied to the heater. For example, the apparatus may be configured to heat the heater or heating element to different peak temperatures for different subgroups during the preheating process. A particular preheating process may be selected and performed from a plurality of preset preheating processes based, for example, on a subgroup of articles, for example, on a subgroup determined by a first determination process. Advantageously, this may allow the preheating process to be tailored to the articles engaged with the apparatus.

[0121] The method may include a preheating check step. The preheating check step may include determining whether the preheating step is complete. The step of preheating a heater may be considered complete when the heater or heating element reaches a certain temperature. The preheating check step may be triggered by the start of heater preheating, or it may occur automatically after the start of heater preheating. The preheating check step may be repeated, for example, at regular intervals.

[0122] The apparatus may be configured to indicate to the user that the preheating process is complete, for example, by using one or more visual, auditory, or tactile indicators.

[0123] Next, the method may include a second determination step of determining whether an aerosol-generating article engaged with an aerosol generator belongs to a first group of aerosol-generating articles. The second determination step may be separate from the first determination step. The second determination step may occur after the first determination step. The second determination step may be performed by an identifier. Specifically, an emitter, such as a light source, may illuminate the article engaged with the device. Next, a receiver, such as a photodiode, may receive the light reflected from the article. Based on the light received by the receiver, the identifier may be able to determine whether the article engaged with the device belongs to a first group of articles, or a particular subgroup of the first group of articles.

[0124] Next, if the second determination step determines that the aerosol-generating article belongs to the first group of aerosol-generating articles, the main heating step may be started. The main heating step may be triggered by the second determination step determining that the aerosol-generating article belongs to the first group of aerosol-generating articles, or it may start automatically after the second determination step. During the main heating step, at least a portion of the aerosol-generating article may be heated to form an aerosol. The average temperature of the heater or heating element may be higher during the main heating step than during the preheating step.

[0125] The second determination step may occur at a predetermined time after the start or completion of the preheating step. The second determination step may start or occur during the preheating step. The second determination step may start or occur after the preheating step. The second determination step may be triggered by the completion of the preheating step.

[0126] Advantageously, the second determination step can prevent the user from starting the heater preheating process using genuine parts and then replacing the genuine parts with non-genuine parts.

[0127] A second determination step may include determining which of the first subgroups the article engaged with the device belongs to. The second determination step may also include determining whether the article engaged with the device belongs to the same subgroup determined in the first determination step. This step may be performed by an identifier. Specifically, an emitter, such as a light source, may illuminate the article engaged with the device. A receiver, such as an optical receiver or photodiode, may then receive the light returned from the article. Based on the light received by the receiver, the identifier may be able to determine which of the first subgroups the article engaged with the device belongs to.

[0128] If the subgroup determined in the second determination step is the same as the one determined in the first determination step, and only in that case, the use of the device may be continued. For example, the main heating step may be triggered or permitted. If the subgroup determined in the second determination step is not the same as the one determined in the first determination step, further use of the device is not permitted. For example, the main heating step is not permitted. If the subgroup determined in the second determination step is not the same as the one determined in the first determination step, the device may be returned to an idle state.

[0129] Advantageously, this can prevent users from replacing genuine articles of the first type with genuine articles of the second type. This can prevent, for example, a heating regime optimized for genuine articles of the first type from being used to heat genuine articles of the second type.

[0130] The main heating step may include heating an aerosol-generating article to generate an aerosol, for example, for inhalation by a user. The main heating step may occur after the heater preheating step is completed. The main heating step may occur after the second determination step. The main heating step may be triggered by the second determination step, which determines that the article to engage with the device belongs to the first group, or it may occur automatically after the second determination step.

[0131] The main heating process may depend on the subgroup to which the articles engaging with the apparatus belong, or on a subgroup determined by a first or second determination process. The main heating process may differ for articles belonging to different subgroups. For example, the temperature profile of the heater or heating element during the main heating process may differ for different subgroups. This may be controlled by the current supplied to the heater. For example, the apparatus may be configured to heat the heater or heating element to different peak temperatures for different subgroups during the main heating process. A particular main heating process may be selected and performed from a plurality of preset main heating processes based, for example, on a subgroup of articles, for example, on a subgroup determined by a first or second determination process. Advantageously, this may allow the main heating process to be tailored to the articles engaging with the apparatus.

[0132] The method may include deactivating the high-side switch. The high-side switch may be deactivated after the second determination step, for example, after the main heating step. Deactivation of the high-side switch may be triggered by the completion of the main heating step, or it may occur automatically after the completion of the main heating step.

[0133] The method may include disabling the low-side switch. The low-side switch may be disabling after the second determination step, for example, after the main heating step. Disabling the low-side switch may be triggered by the completion of the main heating step, or it may occur automatically after the completion of the main heating step.

[0134] The method may include deactivating the heater high-side switch. The heater high-side switch may be deactivated after the main heating process. Deactivation of the heater high-side switch may be triggered by the completion of the main heating process, or it may occur automatically after the completion of the main heating process.

[0135] The method may include disabling the heater low-side switch. The heater low-side switch may be disabling after the main heating process. Disabling the heater low-side switch may be triggered by the completion of the main heating process, or it may occur automatically after the completion of the main heating process.

[0136] The method may include disabling the power supply. The power supply may be disabled after the second determination step, for example, after the main heating step, for example, after disabling one or more of the high-side switch, low-side switch, heater high-side switch, and heater low-side switch. Disabling the power supply may be triggered by the completion of the main heating step, or may occur automatically after the completion of the main heating step.

[0137] The method may include returning the device to an idle state. This may occur when the power supply is disabled, or before or after the power supply is disabled. Returning the device to an idle state may be triggered by the completion of the main heating process, or it may occur automatically after the completion of the main heating process.

[0138] The device may include a user interface. The user interface may be operable to return the device from an active state to an idle state. The user interface may be operable to return the device from an active state to an idle state at any given time. The user interface may be operable to return the device from an active state to an idle state during the preheating process or the main heating process.

[0139] The user interface may include buttons. The use of buttons, for example, pressing a button for longer than a predetermined period, may allow the device to return from an active state to an idle state, or from an active state to an idle state, for example, during a preheating or main heating process. This predetermined period may be at least 0.5, 1, or 1.5 seconds.

[0140] The present disclosure provides an aerosol generator. The generator may be configured to engage with and disengage from an aerosol generating article containing an aerosol-forming substrate. The aerosol generator may include at least a portion of a heater. The heater may be for heating the aerosol-forming substrate of the aerosol generating article when the aerosol generating article is engaged with the aerosol generator. The generator may include an identifier. The identifier may be for determining, or configured to determine, whether an aerosol generating article engaged with the aerosol generator belongs to a first group of aerosol generating articles. The generator may include a power supply. The generator may include a controller. The controller may be configured to control the aerosol generator in order to carry out any of the method steps described above. The controller may be configured to control the aerosol generator in order to carry out the method according to the first embodiment.

[0141] A second aspect of the present disclosure provides an aerosol generator. The device is configured to engage with and disengage from an aerosol generating article containing an aerosol-forming substrate. The aerosol generator includes at least a portion of a heater for heating the aerosol-forming substrate of the aerosol generating article when the aerosol generating article is engaged with the aerosol generator. The device includes an identifier, which is for, or configured to, determine whether the aerosol generating article engaged with the aerosol generator belongs to a first group of aerosol generating articles. The device includes a controller, which is configured to control the aerosol generator in order to carry out the method according to the first aspect.

[0142] The apparatus of the second embodiment may be any of the features described in relation to the apparatus of the first embodiment, or may include such features. For example, the identifier, heater, power supply, and controller of the second embodiment may be any of the features described in relation to the identifier, heater, power supply, and controller of the first embodiment, or may include such features.

[0143] The controller may be configured to operate so that the identifier performs a first determination step of determining whether the aerosol generating article engaged with the aerosol generator belongs to a first group of aerosol generating articles.

[0144] If the first determination step determines that the aerosol-generating article belongs to the first group of aerosol-generating articles, the controller may start a step of operating at least a portion of the heater and preheating the heater.

[0145] After the heater preheating process has started, the controller may be configured to operate to perform a second determination step in which the identifier determines whether the aerosol generating article engaged with the aerosol generator belongs to a first group of aerosol generating articles.

[0146] Features described in relation to the first embodiment may be applied to the second embodiment. The controller of the apparatus may be configured to perform any method step of the first embodiment. The apparatus of the second embodiment may be an apparatus of the system of the first embodiment, or may include any features of the apparatus of the system of the first embodiment. Features described in relation to the second embodiment may be applied to the first embodiment.

[0147] As used herein, the term “aerosol” may refer to the dispersion of solid particles, or droplets, or combinations of solid particles and droplets in a gas. Aerosols may be visible or invisible. Aerosols may include vapors of substances that are normally liquid or solid at room temperature, as well as solid particulate matter, or droplets, or combinations of solid particulate matter and droplets. [Examples]

[0148] The present invention is defined in the claims. However, a non-exclusive list of non-limiting embodiments is provided below. One or more features of these embodiments may be combined with one or more features of other embodiments, forms, or aspects described herein.

[0149] Example 1. A method for operating an aerosol generating system, wherein the aerosol generating system comprises a heater, an aerosol generating device, and an aerosol generating article that is engageable with and disengaged from the aerosol generating device, and the method is A first determination step of determining whether an aerosol generating article engaged with an aerosol generating device belongs to the first group of aerosol generating articles, If the first determination step determines that the aerosol-generating article belongs to the first group of aerosol-generating articles, the step of preheating the heater is started, and A method comprising a second determination step of determining whether an aerosol-generating article engaged with an aerosol generator belongs to a first group of aerosol-generating articles. Example 2. The method according to Example 1, wherein the aerosol generator includes an identifier including a light source, and one or both of the first determination step and the second determination step include a light source that illuminates the aerosol generating article with light. Example 3. The method according to Example 2, wherein the light source is an infrared light-emitting diode. Example 4. The method according to Example 2 or Example 3, wherein the identifier comprises an optical receiver, and one or both of the first determination step and the second determination step comprises an optical receiver that receives light reflected or emitted by an aerosol-generating article after a light source has illuminated the aerosol-generating article with light. Example 5. The method according to Example 4, wherein the optical receiver is a photodiode. Example 6. The method according to Example 4 or Example 5, wherein one or both of the first and second determination steps include analyzing light received by an optical receiver to determine whether the aerosol generator belongs to a first group of aerosol generating articles. Example 7. The method according to any one of Examples 1 to 6, wherein the first group of articles includes a plurality of subgroups, and the first determination step includes determining which of the plurality of subgroups an aerosol generating article engages with an aerosol generating device belongs to. Example 8. The method according to Example 7, wherein the second determination step includes determining which of the multiple subgroups the aerosol generating article that engages with the aerosol generating device belongs to. Example 9. The method according to any one of Examples 1 to 8, wherein the method includes an existence determination step of determining whether an aerosol-generating article is engaged with an aerosol-generating device before the first determination step, and the first determination step is performed only if the existence determination step determines that the aerosol-generating article is engaged with an aerosol-generating device. Example 10. The method according to any one of Examples 1 to 9, wherein, after the first determination step, if the first determination step determines that the aerosol generating article to engage with the aerosol generator does not belong to the first group of aerosol generating articles, the first determination step is repeated, and the step of preheating the heater is prevented from starting until it is determined that the aerosol generating article to engage with the aerosol generator belongs to the first group of aerosol generating articles. Example 11. The second determination step is the method according to any one of Examples 1 to 10, which occurs during the heater preheating step. Example 12. The method according to any one of Examples 1 to 11, wherein the second determination step occurs after the step of preheating the heater is completed. Example 13. The method according to any one of Examples 1 to 12, wherein, after a second determination step, if the second determination step determines that the aerosol-generating article belongs to the first group of aerosol-generating articles, the method includes a main heating step during which at least a portion of the aerosol-generating article is heated to form an aerosol. Example 14. The method according to any one of Examples 1 to 13, wherein, after the second determination step, if the second determination step determines that the aerosol generating article does not belong to the first group of aerosol generating articles, the second determination step is repeated, and the main heating step is prevented until it is determined that the aerosol generating article that engages with the aerosol generating device belongs to the first group of aerosol generating articles. Example 15. The method according to any one of Examples 1 to 14, wherein the first group of aerosol-generating articles comprises multiple subgroups. Example 16. The method according to Example 15, wherein one or both of the first and second determination steps include determining which of multiple subgroups an aerosol generating article engaged with an aerosol generator belongs to, if there are multiple subgroups. Example 17. The method according to Example 16, as in Example 13, wherein the first determination step includes determining which of several subgroups an aerosol generating article engaged with an aerosol generator belongs to, and the preheating step depends on the subgroup to which the aerosol generating article belongs. Example 18. The method according to Example 16 or 17, as in Example 13, wherein the first determination step includes determining which of several subgroups an aerosol generating article engaged with an aerosol generator belongs to, and the main heating step depends on the subgroup to which the aerosol generating article belongs. Example 19. The method according to Example 16 or 17, as in Example 13, wherein the second determination step includes determining which of several subgroups the aerosol generating article that engages with the aerosol generator belongs to, and the main heating step depends on the subgroup to which the aerosol generating article belongs. Example 20. An aerosol generating device configured to engage with and disengage from an aerosol generating article containing an aerosol-forming substrate, wherein the aerosol generating device is When an aerosol generating article is engaged with an aerosol generating device, at least a portion of the heater for heating the aerosol-forming substrate of the aerosol generating article, An identifier capable of determining whether an aerosol generating article engaged with an aerosol generating device belongs to the first group of aerosol generating articles, Equipped with a controller, An aerosol generator in which a controller is configured to control the aerosol generator in order to carry out the method described in any of the preceding claims. [Brief explanation of the drawing]

[0150] Here, we will further describe the examples with reference to the following figures.

[0151] [Figure 1] Figure 1 shows the aerosol generation system. [Figure 2] Figure 2 shows the circuit of the aerosol generation system shown in Figure 1. [Figure 3] Figure 3 shows a flowchart illustrating how to operate the aerosol generation system shown in Figure 1. [Modes for carrying out the invention]

[0152] Figure 1 shows an aerosol generation system 100. The system 100 comprises an aerosol generator 200 and an aerosol generating article 300.

[0153] The aerosol generator 200 includes a housing 202 that defines a cavity 204 for receiving a portion of the aerosol generating article 300. In Figure 1, the aerosol generating article 300 is engaged with the aerosol generator 200 or is received within the cavity 204 of the aerosol generator 200.

[0154] The apparatus 200 comprises a power supply 206, a controller 208, and a substantially blade-shaped heating element 210. The heating element 210 includes an electrical resistive track supported on a substrate. The controller 208 is connected to the power supply 206 and the heating element 210. The controller 208 controls the heating of the heating element 210 by controlling the supply of current from the power supply 206 through the electrical resistive track of the heating element 210.

[0155] The apparatus 200 includes an identifier 212, which includes an emitter in the form of a light source, in particular an infrared light-emitting diode (IR LED) 214, and a receiver in the form of an optical receiver, in particular a photodiode 216.

[0156] The device 200 further includes an air intake 218 for allowing air to flow into the cavity 204, and a button 220 for allowing the user to operate the device 200.

[0157] The aerosol generating article 300 comprises an aerosol-forming substrate 302, a hollow tubular moving element 304, and a mouthpiece 306, arranged in sequence within an outer wrapper 308. The outer wrapper 308 includes a tagant 310 having identifiable spectroscopic features. The tagant 310 is incorporated into the wrapper during the manufacturing of the wrapper material.

[0158] In this example, the wrapper material is manufactured by incorporating Tagant 310 in powder form into a wrapper paper material slurry before the slurry is formed on paper and dried. Tagant 310 is thermally and chemically stable at the temperatures and conditions used during manufacturing so that Tagant 310 functions as desired in the assembled article 300. Alternatively, Tagant 310 may be applied to the wrapper material in solution by spraying, printing, coating, etc.

[0159] The use of Tagant 310 incorporated into the wrapper material prevents the Tagant 310 from being removed from the wrapper after manufacturing. This improves the prevention of tampering with aerosol-generating articles and makes counterfeiting more difficult.

[0160] The Tagant 310 material can be selected to control its optical attributes in order to absorb specific wavelengths of light to enable identification, or to emit light at wavelengths shifted compared to the wavelengths of light used to excite the Tagant 310 and enable identification, or both. As used herein, the term “identification” may mean determining whether an article belongs to a first group of articles, or, if there are subgroups, determining which subgroup of the first group an article belongs to.

[0161] Figure 2 shows the circuit of the aerosol generation system 100 shown in Figure 1. Specifically, Figure 2 shows the power supply 206 and the IR LED 214 of identifier 212 shown in Figure 1. Figure 2 further shows the high-side switch 222, low-side switch 224, and chronometer 226 for protecting the IR LED 214, as well as the heater high-side switch 228, heater low-side switch 230, and heater chronometer 232 for protecting the heating element 210.

[0162] The high-side switch 222 is located between the power supply 206 and the IR LED 214 and is coupled to the chronometer 226. The high-side switch 222 is movable between an open position and a closed position. In the open position, the high-side switch 222 interrupts the circuit or current path between the power supply 206 and the IR LED 214. In the closed position, the high-side switch 222 fully opens the circuit or current path between the power supply 206 and the IR LED 214.

[0163] The low-side switch 224 is located between the IR LED 214 and ground and is coupled to the chronometer 226. The low-side switch 224 is movable between an open position and a closed position. In the open position, the low-side switch 224 interrupts the circuit or current path between the IR LED 214 and ground. In the closed position, the low-side switch 224 completely clears the circuit or current path between the IR LED 214 and ground.

[0164] The heater high-side switch 228 is located between the power supply 206 and the heating element 210 and is coupled to the heater chronometer 232. The heater high-side switch 228 is movable between an open position and a closed position. In the open position, the heater high-side switch 228 interrupts the circuit or current flow path between the power supply 206 and the heating element 210. In the closed position, the heater high-side switch 228 fully opens the circuit or current flow path between the power supply 206 and the heating element 210.

[0165] The heater low-side switch 230 is located between the heating element 210 and ground and is coupled to the heater chronometer 232. The heater low-side switch 230 is movable between an open position and a closed position. In the open position, the heater low-side switch 230 interrupts the circuit or current path between the heating element 210 and ground. In the closed position, the heater low-side switch 230 fully opens the circuit or current path between the heating element 210 and ground.

[0166] Activating or closing a switch refers to moving the switch from the open position to the closed position. Disabling or releasing a switch refers to moving the switch from the closed position to the open position.

[0167] For clarity, the controller 208 of the device 200 is not shown in Figure 2. However, as will be understood by those skilled in the art after reading this disclosure, the controller 208 controls the supply of power from the power supply 206 to the IR LED 214 and the heating element 210, and interacts with the chronometers 226 and 232 to control the activation and deactivation of switches 222, 224, 228, and 230. This will be explained in more detail below.

[0168] Figure 2 also shows input 402 to the chronometer 226. This input 402 may be used to determine or estimate the current supplied to the IR LED 214. Figure 2 also shows input 404 from the chronometer 226 to the high-side switch 222. This input 404 may be, for example, an instruction to open or close the high-side switch 222. Figure 2 also shows input 406 from the controller 208 to the chronometer 226, which enables the high-side switch 222 via the chronometer 226, as will be described in more detail below. Figure 2 also shows input 408 from the controller 208 to the low-side switch 224, which is used to enable the low-side switch 224, as will be described in more detail below.

[0169] Similarly, for the heating element 210, Figure 2 shows an input 502 to the heater chronometer 232. This input 502 may be used to determine or estimate the current supplied to the heating element 210. Figure 2 also shows an input 504 from the heater chronometer 232 to the heater high-side switch 228. This input 504 may, for example, be an instruction to open or close the heater high-side switch 228. Figure 2 also shows an input 506 from the controller 208 to the heater chronometer 232, which enables the heater high-side switch 228 by the heater chronometer 232, as will be described in more detail below. Figure 2 also shows an input 508 from the controller 208 to the heater low-side switch 230, which is used to enable the heater low-side switch 230, as will be described in more detail below.

[0170] Here, the method for operating the aerosol generation system 100 will be explained with reference to the flowchart shown in Figure 3.

[0171] Initially, the device 200 is in an idle state. While the device 200 is idle, the user may insert the item 300 into the cavity 204 of the device 200. In the idle state, the device is operational but not used to generate aerosols.

[0172] Next, the user presses button 220 for more than one second, transitioning device 200 from idle to active.

[0173] The transition from idle to active can cause electrical perturbations such as voltage fluctuations (overvoltage, undervoltage, and other voltage surges) that are dangerous to electronic equipment, and more specifically to the IR LED 214 and heating element 210 of the device 200.

[0174] When the device 200 becomes active, a stick recognition (SR) sequence, also known as the aerosol-generating object recognition sequence, is activated. The aerosol-generating object may also be referred to as a stick.

[0175] Next, the high-side switch 222 is activated. That is, the high-side switch 222 is closed to form a current path from the power supply 206 to the IR LED 214. Specifically, in this embodiment, the high-side switch 222 is activated by the chronometer 226. The controller 208 starts the chronometer 226 with input 406, and the chronometer 226 then automatically activates the high-side switch 222. The controller 208 is then disconnected from the chronometer 226, and the chronometer 226 operates independently.

[0176] The IR LED214 in this embodiment has a continuous forward current of 20 milliamperes and a peak forward current of 1 ampere with a corresponding time limit of 10 microseconds to 1 millisecond.

[0177] After the high-side switch 222 is activated, the power supply 206 is activated.

[0178] Next, a period of time is allowed for the stabilization of the electronic equipment. This period is at least 5 milliseconds long.

[0179] Next, the controller 208 sends input 408 to the low-side switch 224, closing the low-side switch 224. When this happens, input 402 provides the chronometer 226 with an indication that current is being supplied to the IR LED 214, and the chronometer 226 starts the timer. Thus, in this embodiment, the timer starts as soon as the current supplied to the IR LED 214 exceeds the zero-ampere threshold. However, in other embodiments, the timer may only start if a current greater than the non-zero threshold current is supplied to the IR LED 214. The chronometer threshold can be set as needed. If the current supplied to the IR LED 214 drops to the threshold (i.e., back to zero amperes) before the timer reaches a predetermined period of 5 milliseconds, the chronometer 226 is reset. This can happen, for example, when the controller 208 opens the low-side switch. If the current supplied to the IR LED 214 remains above the 0 ampere threshold and the timer reaches a predetermined period of 5 milliseconds, the chronometer 226 sends input 404 to the high-side switch 222, opening the high-side switch 222. This stops the current from being supplied to the IR LED 214 and helps protect the IR LED 214 from damage. The device 200 may then return to an idle state. The chronometer 226 is a hardware chronometer and sends input 404 to the high-side switch 222 without any instruction to the controller 208. Therefore, even if the controller fails, the IR LED 214 can be protected.

[0180] After closing the low-side switch 224, the controller 208 controls the power supply 206 to supply a relatively low current of approximately 20 milliamperes to the IR LED 214 for 10 microseconds to 2 milliseconds. The current causes the IR LED 214 to emit infrared light onto the article 300. Part of this light is reflected from the article 300 and received by the photodiode 216. This allows the identifier 212 of the device 200 to act as an article presence detector and determine that the article 300 is present (i.e., engaged with the device 200). The low-side switch 224 may be opened, for example, by the controller 208, once current has been supplied to the IR LED for a sufficient amount of time.

[0181] If no item is present, the device 200 will return to an idle state. However, since item 300 is detected, a first determination step is performed to determine whether item 300 engaged with the device 200 belongs to a first group of items. This involves the controller 208, which closes the low-side switch 224 again and controls the power supply 206 to supply a relatively high current of about 1 ampere to the IR LED 214 for 200 microseconds to 2 milliseconds. This causes the IR LED 214 to emit infrared light onto item 300. Tagant 310 within the outer wrapper 308 absorbs a specific set of wavelengths of light emitted by the IR LED 214 and reflects another specific set of wavelengths of light emitted by the IR LED 214. The photodiode 216 receives the specific set of wavelengths reflected by the outer wrapper 308 and determines, based on the missing or absorbed sets of wavelengths, that item 300 belongs to a first group of items designed and optimized for use in the device 200. The low-side switch 224 can be opened, for example, by the controller 208, once current has been supplied to the IR LED for a sufficient amount of time.

[0182] As described above with reference to the step of determining whether an article is engaged with the device, if the controller 208 malfunctions and the low-side switch 224 does not open, the chronometer 226 may open the high-side switch 222 if the current supplied to the IR LED 214 remains above the threshold of 0 amperes and the timer reaches a predetermined period of 5 milliseconds.

[0183] If the first determination step determines that article 300 does not belong to the first group of articles, the device 200 returns to an idle state. However, since the first determination step determines that article 300 belongs to the first group of articles, the heater high-side switch 228 is then activated. That is, the heater high-side switch 228 is closed to form a current path from the power supply 206 to the heating element 210. Specifically, in this embodiment, the heater high-side switch 228 is activated by the heater chronometer 232. The controller 208 starts the heater chronometer 232 with input 506, and the heater chronometer 232 then automatically activates the heater high-side switch 228. Next, the controller 208 is disconnected from the heater chronometer 232, and the heater chronometer 232 functions independently.

[0184] After activating the heater high-side switch 228, the heating process begins.

[0185] The controller 208 sends input 508 to the heater low-side switch 230, which closes the heater low-side switch 230 and forms a current path from the IR LED 214 to ground. Input 502 provides the heater chronometer 232 with an indication of the current supplied to the heating element 210, and if the current supplied to the heating element 210 is greater than a threshold, the heater chronometer 232 starts a timer. If the current supplied to the heating element 210 falls below the threshold before the timer reaches a predetermined period, the heater chronometer 232 is reset. If the current supplied to the heating element 210 remains above the threshold and the timer reaches a predetermined period, the heater chronometer 232 sends input 504 to the heater high-side switch 228, which opens the heater high-side switch 228. This stops the current from being supplied to the heating element 210, which can help protect the heating element 210 from damage and protect the article 300 from overheating. The device 200 may then return to an idle state. The heater chronometer 232 is a hardware chronometer and transmits input 504 to the heater high-side switch 228 without any instructions to the controller 208. Therefore, even if the controller 208 malfunctions, the heating element 210 can be protected.

[0186] When the heater low-side switch 230 is closed, the controller 208 controls the power supply 206 to supply power to the heating element 210 and begin preheating. Preheating of the heating element 210 begins, and preheating checks are performed at regular intervals. Each check includes measuring the temperature of the heating element 210 to determine whether the heating element 210 has reached a threshold temperature. If the temperature has not reached the threshold temperature, the preheating check is performed again after a certain interval. If the temperature has reached the threshold temperature, then preheating of the heating element 210 is completed.

[0187] In this embodiment, the completion of preheating triggers the execution of a second determination step, which determines whether the article 300 engaged with the apparatus 200 belongs to a first group of articles. The second determination step is performed in the same manner as the first determination step. Thus, the second determination step includes transmitting a relatively high current of about 1 ampere to the IR LED 214 for 200 microseconds to 2 milliseconds. Also, as in the first determination step, this causes the IR LED 214 to emit infrared light onto the article 300. The tagant 310 within the outer wrapper 308 absorbs a specific set of wavelengths of light emitted by the IR LED 214 and reflects another specific set of wavelengths of light emitted by the IR LED 214. The photodiode 216 receives the specific set of wavelengths reflected by the outer wrapper 308 and determines, based on the missing or absorbed set of wavelengths, that the article 300 belongs to a first group of articles designed and optimized for use in the apparatus 200.

[0188] If the second determination process determines that item 300 does not belong to the first group of items, the device 200 will return to an idle state. However, since the second determination process determined that item 300 belongs to the first group of items, the experience will continue. Specifically, the main heating process will be carried out.

[0189] During the main heating process, the user inhales the article 300. This causes air to flow into the cavity 204 through the air intake 218. This inhalation is detected using a fume extraction detection mechanism (not shown) of the device 200. The fume extraction detection mechanism notifies the controller 208 that fume extraction has occurred, and the controller 208 controls the power supply 206 to power the heating element 210 accordingly. Specifically, more power is supplied to the heating element 210 to heat the article 300 and release volatile compounds from the aerosol-forming substrate. Air flows through the substrate, encompassing these compounds. The air and encompassed compounds then flow through the tubular moving element 304. The encompassed compounds cool and condense to generate an aerosol. The aerosol is drawn out through the mouthpiece 306 and enters the user's mouth. The user may then inhale the aerosol. The main heating process includes further increasing the temperature of the heating element 210 in response to each inhalation or fume extraction of the article 300. The main heating process typically lasts for about four minutes.

[0190] In this embodiment, the second determination step not only determines that article 300 belongs to the first group of articles, but also determines the subgroup of the first group to which article 300 belongs. Specifically, based on the light received by the photodiode 216, the identifier 212 determines the type of aerosol-forming substrate 302 present in article 300. The main heating step depends on the subgroup of the first group to which article 300 belongs, as determined by the second determination step. Specifically, the temperature at which the heating element 210 is heated in response to inhalation 300 is set based on the subgroup determined by the second determination step. Thus, in this embodiment, the main heating step is tailored to the type of aerosol-forming substrate 302 present in article 300. The preheating step could also have equally depended on the subgroup to which article 300 belongs.

[0191] Next, when the heating experience is complete, the power supply 206 stops supplying power to the heating element 210.

[0192] Next, the heater high-side switch 228 is deactivated, and the heater low-side switch 230 is deactivated if it has not already been deactivated.

[0193] Next, the high-side switch 222 is deactivated, and the low-side switch 224 is deactivated if it has not already been deactivated. However, these switches 222 and 224 may be deactivated at any point after the second determination step.

[0194] Next, power supply 206 is disabled.

[0195] Next, device 200 returns to an idle state.

[0196] At any point during the heating experience, the user may press button 220 for more than 1 second to stop the heating experience, disable switches 222, 224, 228, 230 and power supply 206, and return the device 200 to an idle state.

[0197] For the purposes of this specification and the appended claims, unless otherwise indicated, all numbers representing quantities, amounts, percentages, etc., should be understood in all cases as being modified by the term “approximately.” Furthermore, all ranges include the disclosed maximum and minimum points and any intermediate ranges therewith, which may or may not be specifically listed herein. Thus, in this context, number A is understood as 10% of A ± A. In this context, number A can be considered to include a number that falls within the general standard error to the measured value of the characteristic that number A modifies. In some cases as used in the appended claims, number A may deviate by the percentages listed above, provided that the amount of deviation of A does not substantially affect the basic and novel characteristics of the claimed invention. Furthermore, all ranges include the disclosed maximum and minimum points and any intermediate ranges therewith, which may or may not be specifically listed herein.

Claims

1. A method for operating an aerosol generating system, wherein the aerosol generating system comprises a heater, an aerosol generating device, and an aerosol generating article that is engageable with and disengaged from the aerosol generating device. The method described above is A first determination step of determining whether the aerosol generating article engaged with the aerosol generating device belongs to the first group of aerosol generating articles, and thereafter, If the first determination step determines that the aerosol generating article belongs to the first group of aerosol generating articles, the step of preheating the heater is started, and thereafter, A method comprising a second determination step of determining whether an aerosol generating article engaged with the aerosol generating device belongs to a first group of aerosol generating articles.

2. The method according to claim 1, wherein the aerosol generating device includes an identifier including a light source, and one or both of the first determination step and the second determination step include illuminating the aerosol generating article with light using the light source.

3. The method according to claim 2, wherein the light source is an infrared light-emitting diode.

4. The method according to claim 2 or 3, wherein the identifier comprises a light receiver, and one or both of the first determination step and the second determination step include the light receiver receiving light reflected or emitted by the aerosol generating article after the light source has illuminated the aerosol generating article with light.

5. The method according to claim 4, wherein the optical receiver is a photodiode.

6. The method according to claim 4 or 5, wherein one or both of the first determination step and the second determination step include analyzing the light received by the optical receiver to determine whether the aerosol generator belongs to the first group of aerosol generating articles.

7. The method according to any one of claims 1 to 6, wherein the first group of aerosol-generating articles includes a plurality of subgroups, and the first determination step includes determining which of the plurality of subgroups an aerosol-generating article that engages with the aerosol-generating device belongs to, if it belongs to any of the plurality of subgroups.

8. The method according to any one of claims 1 to 7, wherein the first group of aerosol-generating articles includes a plurality of subgroups, and the second determination step includes determining which of the plurality of subgroups an aerosol-generating article that engages with the aerosol-generating device belongs to, if it belongs to any of the plurality of subgroups.

9. The method according to any one of claims 1 to 8, wherein the method includes, before the first determination step, an existence determination step of determining whether an aerosol generating article is engaged with the aerosol generating device, and the first determination step is performed only if the existence determination step determines that the aerosol generating article is engaged with the aerosol generating device.

10. The method according to any one of claims 1 to 9, wherein, after the first determination step, if the first determination step determines that the aerosol generating article that engages with the aerosol generator does not belong to the first group of aerosol generating articles, the first determination step is repeated, and the step of preheating the heater is prevented from starting until it is determined that the aerosol generating article that engages with the aerosol generator belongs to the first group of aerosol generating articles.

11. The second determination step described above is Occurs at a predetermined time after the start or end of the process of preheating the heater, or The process of preheating the heater begins or occurs, The method according to any one of claims 1 to 10, which is triggered by the completion of the step of preheating the heater.

12. The method according to any one of claims 1 to 10, wherein the second determination step occurs after the step of preheating the heater is completed.

13. The method according to any one of claims 1 to 12, wherein, after the second determination step, if the second determination step determines that the aerosol generating article belongs to the first group of aerosol generating articles, the method further includes a main heating step during which at least a portion of the aerosol generating article is heated to form an aerosol.

14. The method according to any one of claims 1 to 13, wherein, after the second determination step, if the second determination step determines that the aerosol generating article does not belong to the first group of aerosol generating articles, the second determination step is repeated until it is determined that the aerosol generating article that engages with the aerosol generating device belongs to the first group of aerosol generating articles.

15. An aerosol generating device configured to engage with and disengage from an aerosol generating article containing an aerosol-forming substrate, wherein the aerosol generating device is configured to engage with and disengage from an aerosol generating article containing an aerosol-forming substrate, When the aerosol generating article is engaged with the aerosol generating device, at least a portion of the heater for heating the aerosol forming substrate of the aerosol generating article, An identifier for determining whether an aerosol generating article that engages with the aerosol generating device belongs to the first group of aerosol generating articles, and Equipped with a controller, An aerosol generator wherein the controller is configured to control the aerosol generator in order to carry out the method according to any one of claims 1 to 14.

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