Capsule monitoring system for aerosol generating devices

Abstract

A capsule monitoring system for an aerosol generating device includes at least one processor and a memory. The memory is coupled to the at least one processor and stores instructions. The at least one processor is configured to execute the instructions to cause the capsule monitoring system to detect activation of a mechanism detection switch of the aerosol generating device, apply first power to a first contact of the aerosol generating device, determine a first resistance between the first contact and a second contact, determine whether the first resistance is within a resistance operating range, and display a capsule acceptance indicator in response to the first resistance being within the resistance operating range. The first contact is configured to contact a heater. The second contact is configured to contact the heater.

Description

[Technical Field]

[0001] At least some exemplary embodiments relate to aerosol generating devices, and more particularly, but not exclusively, to capsule monitoring systems for aerosol generating devices. [Background technology]

[0002] Some electronic devices are configured to heat plant material to a temperature sufficient to release components of the plant material, while maintaining the temperature below the plant material's combustion point to avoid substantial thermal decomposition. Such devices may be referred to as aerosol generating devices (e.g., heated non-combustion aerosol generating devices), and the heated plant material may be tobacco and / or cannabis. In some cases, the plant material may be introduced directly into the heating chamber of the aerosol generating device. In other embodiments, the plant material may be pre-packaged in individual containers to facilitate insertion and removal from the aerosol generating device. Summary of the Invention

[0003] Systems, devices, and methods for aerosol generating device control systems are set forth in the accompanying claims. Exemplary embodiments are also provided to enable one skilled in the art to make and use the claimed subject matter.

[0004] At least one exemplary embodiment relates to a capsule monitoring system for an aerosol generating device. The capsule monitoring system includes at least one processor and a memory coupled to the at least one processor and configured to store instructions. The at least one processor is configured to execute the instructions to cause the capsule monitoring system to detect actuation of a mechanism detection switch of the aerosol generating device, apply first power to a first contact of the aerosol generating device, determine a first resistance between the first contact and a second contact, determine whether the first resistance is within a resistance operating range, and, in response to the first resistance being within the resistance operating range, display a capsule acceptance indicator. The first contact and the second contact are configured to contact a heater.

[0005] In at least one exemplary embodiment, the at least one processor is configured to execute instructions to cause the capsule monitoring system to start a capsule monitoring timer configured to measure a capsule monitoring time and to reset the capsule monitoring timer in response to actuation of a mechanism detection switch of the aerosol generating device.

[0006] In at least one exemplary embodiment, at least one processor is configured to execute instructions to increase a first power to the capsule monitoring system until the first power exceeds a first power threshold.

[0007] In at least one exemplary embodiment, at least one processor is configured to execute instructions to cause the capsule monitoring system to monitor a first power against a first power threshold, monitor a capsule monitoring time against a time threshold, determine whether the first resistance is within a resistance range in response to the first power not exceeding the first power threshold and the capsule monitoring time not exceeding the time threshold, and stop applying the first power to the first contact of the aerosol generation device in response to the first resistance not being within the resistance range.

[0008] In at least one exemplary embodiment, the lower limit of the resistance range is approximately half the minimum heater operating resistance.

[0009] In at least one exemplary embodiment, the minimum heater operating resistance is about 2002 milliohms.

[0010] In at least one exemplary embodiment, at least one processor is configured to execute instructions that cause the capsule monitoring system to display a fault indicator.

[0011] In at least one exemplary embodiment, the upper end of the resistance range is about 3327 milliohms.

[0012] In at least one exemplary embodiment, the time threshold is approximately 217 milliseconds.

[0013] In at least one exemplary embodiment, at least one processor is configured to execute instructions to cause the capsule monitoring system to monitor a first power against a first power threshold, monitor a capsule monitoring time against a time threshold, determine whether a first resistance is within a resistance range in response to the first power not exceeding the first power threshold and the capsule monitoring time not exceeding the time threshold, and increase the first power applied to a first contact of the aerosol generation device in response to the first resistance being within the resistance range.

[0014] In at least one exemplary embodiment, at least one processor is configured to execute instructions to cause the capsule monitoring system to monitor a first power against a first power threshold, monitor a capsule monitoring time against a time threshold, and stop applying the first power to a first contact of the aerosol generating device in response to the first power not exceeding the first power threshold and the capsule monitoring time exceeding the time threshold.

[0015] In at least one exemplary embodiment, the at least one processor is configured to execute instructions to cause the capsule monitoring system to return the aerosol generating device to normal operation.

[0016] In at least one exemplary embodiment, at least one processor is configured to execute instructions to cause the capsule monitoring system to monitor the first power against a first power threshold, monitor the first resistance against a maximum heater resistance in response to the first resistance not being within a resistance operating range and the first power exceeding the first power threshold, and display a fault indicator in response to the first resistance not exceeding the maximum heater resistance.

[0017] In at least one exemplary embodiment, the maximum heater resistance is about 3327 milliohms.

[0018] In at least one exemplary embodiment, at least one processor is configured to execute instructions to cause the capsule monitoring system to monitor the first power against a first power threshold, monitor the first resistance against a maximum heater resistance in response to the first resistance not being within a resistance operating range and the first power exceeding the first power threshold, and return the aerosol generation device to normal operation in response to the first resistance exceeding the maximum heater resistance.

[0019] In at least one exemplary embodiment, the first power threshold is approximately 2 watts.

[0020] In at least one exemplary embodiment, the at least one processor is configured to execute instructions to cause the capsule monitoring system to monitor the first power against a first power threshold and, in response to the first power exceeding the first power threshold, to stop application of the first power to the first contact.

[0021] In at least one exemplary embodiment, at least one processor executes instructions to cause the capsule monitoring system to, after determining that the first resistance is within a resistance operating range, store the first resistance in a memory of the capsule monitoring system, detect the start of a session of the aerosol generating device, apply preheating power to a first contact of the aerosol generating device, determine a preheating resistance between the first contact and a second contact, determine whether the preheating resistance is within a resistance tolerance range, and, in response to the preheating resistance being within the resistance tolerance range, return the aerosol generating device to preheating operation of the session, where the resistance tolerance range is based on the first resistance stored in the memory of the aerosol generating device.

[0022] In at least one exemplary embodiment, the at least one processor is configured to execute instructions to cause the capsule monitoring system to increase the preheat power until the preheat power exceeds a preheat power threshold.

[0023] In at least one exemplary embodiment, at least one processor is configured to execute instructions to cause the capsule monitoring system to monitor the preheat power against a preheat power threshold, determine whether the preheat resistance is within a resistance range in response to the preheat power not exceeding the preheat power threshold, and stop applying the preheat power to the first contact of the aerosol generating device in response to the preheat resistance not being within the resistance range.

[0024] In at least one exemplary embodiment, at least one processor is configured to execute instructions to cause the capsule monitoring system to monitor the preheat power against a preheat power threshold, determine whether the preheat resistance is within a resistance range in response to the preheat power not exceeding the preheat power threshold, and increase the preheat power applied to the first contact of the aerosol generating device in response to the preheat resistance being within the resistance range.

[0025] In at least one exemplary embodiment, at least one processor is configured to execute instructions to cause the capsule monitoring system to monitor the preheat power against a preheat power threshold and to stop applying the preheat power to the first contact of the aerosol generating device in response to the preheat resistance not being within the resistance tolerance range and the preheat power exceeding the preheat power threshold.

[0026] In at least one exemplary embodiment, the preheat power threshold is about 2 watts.

[0027] In at least one exemplary embodiment, the lower limit of the resistance tolerance range is approximately 15 milliohms lower than the first resistance stored in the memory of the aerosol generating device, and the upper limit of the resistance tolerance range is approximately 15 milliohms higher than the first resistance stored in the memory of the aerosol generating device.

[0028] In at least one exemplary embodiment, the lower limit of the resistance tolerance range is approximately 30 milliohms lower than the first resistance stored in the memory of the aerosol generating device, and the upper limit of the resistance tolerance range is approximately 30 milliohms higher than the first resistance stored in the memory of the aerosol generating device.

[0029] In at least one exemplary embodiment, the mechanism detection switch is configured to activate when a closure mechanism of the aerosol generating device is closed.

[0030] In at least one exemplary embodiment, the closure mechanism is configured to secure the capsule within the aerosol generating device.

[0031] In at least one exemplary embodiment, the capsule monitoring system further comprises a voltage measurement circuit configured to measure a voltage between the first contact and the second contact.

[0032] In at least one exemplary embodiment, the capsule monitoring system further comprises a current measurement circuit configured to measure a current at one of the first contact and the second contact.

[0033] In at least one exemplary embodiment, at least one processor is configured to execute instructions to cause the capsule monitoring system to initiate a preheating operation of the aerosol generating device after at least one of determining that the first resistance is within a resistance operating range and displaying a capsule acceptance indicator.

[0034] At least one exemplary embodiment relates to a capsule monitoring system for an aerosol generating device, including at least one processor and a memory coupled to the at least one processor and storing instructions. The at least one processor is configured to execute the instructions to cause the capsule monitoring system to detect the start of a session of the aerosol generating device, apply preheating power to a first contact of the aerosol generating device, determine a preheating resistance between the first contact and a second contact of the aerosol generating device, determine whether the preheating resistance is within a resistance tolerance range, and continue the preheating operation of the session in response to the preheating resistance being within the resistance tolerance range. The resistance tolerance range is based on the first resistance stored in the memory of the aerosol generating device.

[0035] In one or more exemplary embodiments, a method of operating a capsule monitoring system of an aerosol generating device is provided, the method including detecting actuation of a mechanism detection switch of the aerosol generating device, applying first power to a first contact of the aerosol generating device, determining a first resistance between the first contact and a second contact, determining whether the first resistance is within a resistance operating range, and displaying a capsule acceptance indicator in response to the first resistance being within the resistance operating range. The first contact and the second contact are configured to contact a heater.

[0036] One or more exemplary embodiments provide a non-transitory computer-readable storage medium having stored thereon computer-readable instructions that, when executed by a controller of a capsule monitoring system of an aerosol generating device, cause the controller to perform a method for operating the capsule monitoring system of the aerosol generating device. The method includes: detecting actuation of a mechanism detection switch of the aerosol generating device; applying first power to a first contact of the aerosol generating device; determining a first resistance between the first contact and a second contact; determining whether the first resistance is within a resistance operating range; and displaying a capsule acceptance indicator in response to the first resistance being within the resistance operating range. The first contact and the second contact are configured to contact a heater.

[0037] In one or more exemplary embodiments, a method for operating a capsule monitoring system of an aerosol generating device is provided. The method includes: detecting the start of a session of the aerosol generating device; applying preheat power to a first contact of the aerosol generating device; determining a preheat resistance between the first contact and a second contact; determining whether the preheat resistance is within a resistance tolerance range; and continuing the preheat operation of the session in response to the preheat resistance being within the resistance tolerance range. The resistance tolerance range is based on the first resistance stored in a memory of the aerosol generating device.

[0038] One or more exemplary embodiments provide a non-transitory computer-readable storage medium having stored thereon computer-readable instructions that, when executed by a controller of a capsule monitoring system for an aerosol generating device, cause the controller to perform a method for operating the capsule monitoring system for an aerosol generating device, including: detecting the start of a session of the aerosol generating device; applying preheating power to a first contact of the aerosol generating device; determining a preheating resistance between the first contact and a second contact; determining whether the preheating resistance is within a resistance tolerance range; and continuing the preheating operation of the session in response to the preheating resistance being within the resistance tolerance range. The resistance tolerance range is based on the first resistance stored in a memory of the aerosol generating device. [Brief explanation of the drawings]

[0039] Various features and advantages of the non-limiting embodiments herein will become more apparent from a consideration of the detailed description in conjunction with the accompanying drawings. The accompanying drawings are provided for illustrative purposes only and should not be construed as limiting the scope of the claims. The accompanying drawings are not to be considered as drawn to scale unless explicitly stated. Various dimensions of the drawings may be exaggerated for clarity.

[0040] [Figure 1] FIG. 1 is a top right front perspective view of a device according to at least one exemplary embodiment.

[0041] [Figure 2A] 2A is a top right front perspective view of the device of FIG. 1 with the lid open and the device containing a capsule.

[0042] [Figure 2B] 2B is a lower right front perspective view of the device of FIG.

[0043] [Figure 2C] FIG. 2C is a bottom view of the device of FIG.

[0044] [Figure 3] FIG. 3 is a block diagram of a capsule monitoring system of the device of FIG. 1, according to at least one example embodiment.

[0045] [Figure 4] FIG. 4 is a block diagram of a heating system for the apparatus of FIG. 1 and the capsule of FIG. 2, according to at least one exemplary embodiment.

[0046] [Figure 5] FIG. 5 is a flowchart illustrating a method of operating the capsule monitoring system of FIG. 3 in accordance with at least one exemplary embodiment.

[0047] [Figure 6] FIG. 6 is a flowchart illustrating a method of operating the capsule monitoring system of FIG. 3 in accordance with at least one exemplary embodiment.

[0048] [Figure 7] FIG. 7 is a flowchart illustrating another method of operating the capsule monitoring system of FIG. 3 in accordance with at least one exemplary embodiment.

[0049] [Figure 8] FIG. 8 is a flow chart illustrating a method of operation of the capsule monitoring system of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0050] Several detailed exemplary embodiments are disclosed herein. However, the specific structural and functional details disclosed herein are merely representative for purposes of describing the exemplary embodiments. However, the exemplary embodiments may be embodied in many alternative forms and should not be construed as limited to only the exemplary embodiments set forth herein.

[0051] Accordingly, while exemplary embodiments are susceptible to various modifications and alternative forms, exemplary embodiments thereof are shown by way of example in the drawings and will be described in detail herein. It should be understood, however, that there is no intention to limit the exemplary embodiments to the particular forms disclosed, but on the contrary, the exemplary embodiments are intended to cover all modifications, equivalents, and alternatives falling within the scope of the exemplary embodiments. Like numbers refer to like elements throughout the description of the figures.

[0052] When an element or layer is referred to as being "on," "connected to," "coupled to," "attached to," "adjacent to," or "covering" another element or layer, it should be understood that it may be directly connected to, coupled to, attached to, adjacent to, or covering the other element or layer, and that intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0053] Terms such as "first," "second," and "third" may be used herein to describe various elements, regions, layers, and / or sections; however, it should be understood that these elements, regions, layers, and / or sections are not limited by these terms. These terms are used only to distinguish one element, region, layer, or section from another region, layer, or section. Thus, a first element, region, layer, or section described below could be referred to as a second element, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0054] For ease of description, spatially relative terms (e.g., "beneath," "below," "lower," "above," "upper," etc.) may be used herein to describe the relationship of one element or feature to another, as illustrated in the figures. It should be understood that spatially relative terms are intended to encompass different orientations of the device during use and operation in addition to the orientation depicted in the figures. For example, if a device in the figures were turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the term "below" can encompass both an orientation of above and below. Additionally, a device may be otherwise oriented (rotated 90 degrees, oriented in other directions, etc.), and the spatially relative descriptors used herein would be interpreted accordingly.

[0055] The terminology used herein is for the purpose of describing various exemplary embodiments only and is not intended to limit the exemplary embodiments. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "includes," "including," "comprises," and / or "comprising" specify the presence of stated features, integers, steps, operations, and / or elements, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or groups thereof.

[0056] As used herein, when the words "about" and "substantially" are used in connection with numerical values, unless expressly defined otherwise, it is intended that the associated numerical values ​​include a tolerance of ±10% around the stated numerical value. Furthermore, when the terms "generally" or "substantially" are used in connection with geometric shapes, precision of the geometric shape is not required, but a margin of shape is intended to be within the scope of the present disclosure. Furthermore, whether a numerical value or shape is modified as "about," "generally," or "substantially," it will be understood that these numerical values ​​and shapes should be interpreted as including manufacturing or operating tolerances (e.g., ±10%) around the stated numerical value or shape.

[0057] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the exemplary embodiments belong. Furthermore, terms, including those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined as such in this specification.

[0058] As used herein, "coupled" includes both removably and permanently coupled. For example, if an elastic layer and a support layer are removably coupled to one another, the elastic layer and the support layer can be separated when sufficient force is applied.

[0059] The hardware may be implemented using processing or control circuitry, including, but not limited to, one or more processors, one or more central processing units (CPUs), one or more microcontrollers, one or more arithmetic logic units (ALUs), one or more digital signal processors (DSPs), one or more microcomputers, one or more field programmable gate arrays (FPGAs), one or more systems on a chip (SoCs), one or more programmable logic units (PLUs), one or more microprocessors, one or more application specific integrated circuits (ASICs), or any other device that may respond to and / or execute instructions in a defined manner.

[0060] One or more exemplary embodiments may be described herein, at least in some instances, as being performed by a capsule monitoring system of an aerosol generating device that includes at least one processor and a memory storing computer-executable instructions, where the at least one processor is configured to execute the computer-readable instructions to cause the capsule monitoring system to perform the operations of one or more exemplary embodiments. Furthermore, the processor, memory, and algorithms encoded as exemplary computer program code can function as means for providing or causing the operations discussed herein.

[0061] 1, 2A, 2B, and 2C are illustrations of a device 100 according to some exemplary embodiments. In some embodiments, the device 100 may be an aerosol generating device. Referring to FIG. 1, a top perspective view of the device 100 is shown. In some embodiments, the body of the device 100 may have a generally rectangular or pebble shape. The body of the device 100 may include a housing 102 and a lid mechanism or lid 104. The housing 102 may have a first end 106 and a second end 108 opposite the first end 106. The lid may have a first end 110 and a second end 112 opposite the first end 110. The first end 110 of the lid 104 may be fixedly coupled to the second end 108 of the housing 102 at a first point 114 and releasably coupled to the second end 108 of the housing 102 at a second point 116. The first point 114 of the housing 102 may be on a first side 118 of the device 100. The second point 116 of the housing 102 may be on a second side 120 of the device 100.

[0062] In some exemplary embodiments, the device 100 may further include a mouthpiece 122. In at least some exemplary embodiments, the mouthpiece 122 may include a first end 124 and a second end 126 opposite the first end 124. The second end 126 of the mouthpiece 122 may be coupled to the second end 112 of the lid 104. In some embodiments, the second end 126 of the mouthpiece 122 may be releasably coupled to the second end 112 of the lid 104. In at least one exemplary embodiment, the mouthpiece 122 may taper between the first end 124 and the second end 126. For example, the diameter or average length / width dimension of the first end 124 may be smaller than the diameter or average length / width dimension of the second end 126. Toward the first end 124, the taper may have a slight inward curvature 128 configured to receive the lips of an adult consumer, improving comfort and experience. In some embodiments, first end 124 has an oval or elliptical shape and can include one or more outlets 130. For example, first end 124 can include four outlets 130 so that four or more different areas or quadrants of an adult consumer's mouth can be engaged during use of device 100. In other embodiments, mouthpiece 122 can have fewer than four outlets 130 or more than four outlets 130.

[0063] In some exemplary embodiments, the housing 102 may include an adult consumer interface panel 132 disposed on the second side 120 of the device 100. For example, the consumer interface panel 132 may be an oval-shaped panel that runs along the second side 120 of the device 100. The consumer interface panel 132 may include an unlatch button 134, as well as a communication screen 136 and / or control buttons 138. For example, in at least some exemplary embodiments, the consumer interface panel 132 may include a communication screen 136 disposed between the unlatch button 134 and the control buttons 138. As shown, the unlatch button 134 may be disposed toward the second end 108 of the device 100, and the control buttons 138 may be disposed toward the first end 106 of the device 100. The unlatch button 134 and the control buttons 138 may be adult consumer interaction buttons. The unlatch button 134 and the control button 138, although not limited to an exemplary embodiment, may have a substantially circular shape with a central depression or indentation configured to direct pressure applied by an adult consumer. The control button 138 may power the device 100 on and off. While only two buttons are shown, it should be understood that more or fewer buttons may be provided depending on the available functionality and desired adult consumer interface.

[0064] The communication screen 136 may be an adult consumer interface, such as a human-machine interface (HMI) display. In at least one exemplary embodiment, the communication screen 136 may be an integrated thin film transistor ("TFT") screen. In other exemplary embodiments, the communication screen 136 is an organic light-emitting diode ("OLED") or light-emitting diode ("LED") screen. The communication screen 136 is configured for adult consumer engagement and may have a generally rectangular shape.

[0065] In some embodiments, the exterior of the housing 102 and / or lid 104 may be formed from metal (aluminum, stainless steel, etc.); aesthetic, food-contact rated plastic (such as polycarbonate (PC), acrylonitrile butadiene styrene (ABS) material, liquid crystal polymer (LCP), copolyester plastic, or any other suitable polymer and / or plastic); or any combination thereof. The mouthpiece 122 may likewise be formed from metal (aluminum, stainless steel, etc.); aesthetic, food-contact rated plastic (such as polycarbonate (PC), acrylonitrile butadiene styrene (ABS) material, liquid crystal polymer (LCP), copolyester plastic, or any other suitable polymer and / or plastic); and / or plant-based material (wood, bamboo, etc.). One or more interior surfaces or housing 102 and / or lid 104 may be formed from or coated with a high temperature plastic (e.g., polyetheretherketone (PEEK), liquid crystal polymer (LCP), etc.).

[0066] 2A is another top perspective view of device 100 with lid 104 in an open configuration. Lid 104 may be fixedly coupled to housing 102 at first point 114 by a hinge 202 or other similar connector that allows lid 104 to move (e.g., swing and rotate) from an open position to a closed position. In some embodiments, hinge 202 may be a torsion spring. In at least some exemplary embodiments, housing 102 may include a recess 204 at first point 114. Recess 204 may be configured to receive a portion of lid 104 to allow easy and smooth movement of lid 104 from the open position to the closed position (and vice versa). Recess 204 may have structure corresponding to a corresponding portion of lid 104. For example, as shown, recess 204 may include a substantially curved portion 206 having a generally concave shape that corresponds to the curvature of lid 104, which has a generally convex shape.

[0067] The lid 104 may be releasably coupleable to the housing 102 at the second point 116 by a latch 208, or other similar connector, such that the lid 104 is secured or fixed in a closed position and is easily releasable to allow the lid 104 to move from the closed position to an open position. In at least one exemplary embodiment, the latch 208 may be coupled to an unlatching mechanism disposed within the housing. The unlatching mechanism may be configured to move the latch 208 from a first or closed position to a second or open position.

[0068] 2A, when the lid 104 is in the open position, a capsule-receiving cavity 210 in the housing 102 is exposed. A capsule connector 212 can define the capsule-receiving cavity 210 in the housing 102. In some embodiments, the capsule connector 212 can be attached or otherwise secured to a printed circuit board (PCB) within the housing 102.

[0069] As shown in FIG. 2A , a capsule 214 can be received by the capsule-receiving cavity 210. The capsule can house consumables for the device 100. Although not shown herein, in some embodiments, a gasket can be disposed around the capsule 214 to help secure the capsule 214 in place within the housing 102. The capsule 214 can include a housing 216 configured to contain the aerosol-generating substrate and heater. In some embodiments, the housing 216 can be in the form of a cover, such as a shell or box sleeve. In some embodiments, the capsule 214 can include a first end cap 217 and a second end cap. The second end cap can face the first end cap 217 so that the capsule 214 is positioned within the housing 102 when received by the capsule-receiving cavity 210.

[0070] As discussed herein, an aerosol-generating substrate is a material or combination of materials capable of producing an aerosol. Aerosol refers to a substance generated or output by the disclosed and claimed devices, and equivalents thereof. The material may include a compound (e.g., nicotine, cannabinoids), and when the material is heated, an aerosol containing the compound is generated. Heating may be below combustion temperatures to generate the aerosol without substantial thermal decomposition of the aerosol-generating substrate or substantial generation of combustion by-products, if any. Thus, in exemplary embodiments, no thermal decomposition occurs during heating and the resulting generation of the aerosol. In other instances, thermal decomposition or combustion by-products may be present, but are considered relatively minor and / or merely incidental.

[0071] The aerosol-generating substrate may be a fibrous material. For example, the fibrous material may be a plant material. The fibrous material is configured to release a compound when heated. The compound may be a naturally occurring component of the fibrous material. For example, the fibrous material is a plant material such as tobacco, and the released compound is nicotine. The term "tobacco" includes any tobacco plant material, including tobacco leaf, tobacco plugs, reconstituted tobacco, compressed tobacco, formed tobacco, or powdered tobacco, and combinations thereof from one or more species of tobacco plants, such as Nicotiana rustica or Nicotiana tabacum.

[0072] In some exemplary embodiments, the tobacco material can include material from any member of the Nicotiana genus. Furthermore, the tobacco raw material can also include a blend of two or more different tobacco varieties. Suitable types of tobacco raw materials that can be used include, but are not limited to, flue-cured tobacco, burley tobacco, dark tobacco, Maryland tobacco, Oriental tobacco, rare tobacco, specialty tobacco, blends thereof, and the like. The tobacco material can be provided in any suitable form, including, but not limited to, tobacco lamina, processed tobacco materials such as expanded tobacco or puffed tobacco, processed tobacco stems such as cut rolling stems or cut puffed stems, reconstituted tobacco materials, blends thereof, and the like. In some exemplary embodiments, the tobacco material is in the form of a substantially dried mass of tobacco. Furthermore, in some embodiments, the tobacco material can be mixed and / or combined with at least one of propylene glycol, glycerin, subcombinations thereof, or combinations thereof.

[0073] The compound may also be a naturally occurring component of a medicinal plant with medically recognized therapeutic effects. For example, the medicinal plant may be the cannabis plant, and the compound may be a cannabinoid. Cannabinoids interact with receptors in the body, resulting in a variety of effects. As a result, cannabinoids have been used for a variety of medicinal purposes, including the treatment of pain, nausea, epilepsy, and psychiatric disorders. The fibrous material may include leaf and / or flower material from one or more cannabis species, such as Cannabis sativa, Cannabis indica, and Cannabis ruderalis. In one embodiment, the fibrous material is a mixture of 60-80% (e.g., 70%) Cannabis sativa and 20-40% (e.g., 30%) Cannabis indica.

[0074] Examples of cannabinoids include tetrahydrocannabinolic acid (THCA), tetrahydrocannabinol (THC), cannabidiolic acid (CBDA), cannabidiol (CBD), cannabinol (CBN), cannabicyclol (CBL), cannabichromene (CBC), and cannabigerol (CBG). Tetrahydrocannabinolic acid (THCA) is a precursor to tetrahydrocannabinol (THC), and cannabidiolic acid (CBDA) is a precursor to cannabidiol (CBD). Tetrahydrocannabinolic acid (THCA) and cannabidiolic acid (CBDA) can be converted to tetrahydrocannabinol (THC) and cannabidiol (CBD), respectively, by heating. In an exemplary embodiment, heat from a heater can cause decarboxylation to convert tetrahydrocannabinolic acid (THCA) in the capsule to tetrahydrocannabinol (THC) and / or cannabidiolic acid (CBDA) in the capsule to cannabidiol (CBD).

[0075] When both tetrahydrocannabinolic acid (THCA) and tetrahydrocannabinol (THC) are present in the capsule, decarboxylation and the resulting conversion result in a decrease in tetrahydrocannabinolic acid (THCA) and an increase in tetrahydrocannabinol (THC). At least 50% (e.g., at least 87%) of tetrahydrocannabinolic acid (THCA) may be converted to tetrahydrocannabinol (THC) during heating of the capsule. Similarly, when both cannabidiolic acid (CBDA) and cannabidiol (CBD) are present in the capsule, decarboxylation and the resulting conversion result in a decrease in cannabidiolic acid (CBDA) and an increase in cannabidiol (CBD). At least 50% (e.g., at least 87%) of cannabidiolic acid (CBDA) may be converted to cannabidiol (CBD) during heating of the capsule.

[0076] Furthermore, the compound may be or may additionally include a non-naturally occurring additive that is subsequently introduced into the fibrous material. In one example, the fibrous material may comprise at least one of cotton, polyethylene, polyester, rayon, a combination thereof, and the like (e.g., in the form of gauze). In another example, the fibrous material may be a cellulosic material (e.g., a non-tobacco and / or non-cannabis material). In either example, the introduced compound may comprise nicotine, a cannabinoid, and / or a flavoring. The flavoring may be naturally occurring, such as a plant extract (e.g., tobacco extract, cannabis extract), and / or artificially occurring. In yet another example, if the fibrous material comprises tobacco and / or cannabis, the compound may be or may further comprise one or more flavorings (e.g., menthol, mint, vanilla). Thus, the compound within the aerosol-generating substrate may comprise naturally occurring components and / or non-naturally occurring additives. In this regard, it should be understood that the existing levels of naturally occurring components in the aerosol-generating substrate may be increased by supplementation. For example, the amount of nicotine in tobacco can be increased by supplementing it with an extract containing nicotine. Similarly, the existing levels of one or more cannabinoids in cannabis can be increased by supplementing it with an extract containing such cannabinoids.

[0077] First end cap 217 can include a first opening 218. In some embodiments, first opening 218 can be a series of openings disposed through first end cap 217. Similarly, second end cap can include a second opening, which in some embodiments can be a series of openings. In some embodiments, first end cap 217 and / or second end cap can be transparent to function as a window configured to allow viewing of contents / components (e.g., aerosol-forming substrate and / or heater) within capsule 214.

[0078] The capsule-receiving cavity 210 can have a base that is internal to the housing 102. In some embodiments, the base can include at least a first contact and a second contact, each of which can be configured to couple to one or more contacts on the capsule 214 when the capsule 214 is received by the capsule-receiving cavity 210. Power is supplied to the first contact, which in turn supplies power to a heater in the capsule 214.

[0079] When the capsule 214 is inserted into the capsule-receiving cavity 210, the weight of the capsule 214 itself may not be sufficient to compress the first and second contacts at the base of the capsule-receiving cavity 210. As a result, the capsule 214 may simply rest on the exposed pins of the first and second contacts without compressing (or significantly compressing) the electrical contacts of the first and second contacts. Furthermore, the weight of the lid 104 itself, when pivoted to the closed position, may not compress the electrical contacts of the first and second contacts to a significant extent, but instead may simply rest on the capsule 214 in an intermediate, partially open / closed position. In such an example, an intentional action (e.g., a downward force) to close the lid 104 causes the surface 220 of the lid 104 to press down on the capsule 214 to provide the desired seal and also compress the capsule 214, thus fully engaging the electrical contacts of the first and second contacts. When in the closed position, the lid 104 secures the capsule 214 within the device 100 .

[0080] Additionally, full closure of the lid 104 may result in engagement with the latch 208, which may maintain the closed position and the desired mechanical / electrical engagement with the capsule 214 until released (e.g., via the unlatch button 134). The force required to close the lid 104 may help to ensure and / or improve the air / aerosol seal, provide a stronger electrical connection, and may also help improve device and thermal efficiency and battery life by reducing or eliminating initial power consumption and / or parasitic heating of the capsule 214.

[0081] The lid 104 may include an internal cavity 222 that may be adapted to receive the housing 102 when the lid is in the closed position. In some embodiments, the internal cavity 222 of the lid 104 may include an abutment or engagement member or surface 220 configured to engage the capsule 214 when the lid 104 is rotated to the closed position. The surface 220 of the lid 104 may include a recess that may correspond to the size and shape of the capsule and / or a resilient material to strengthen the interface with the capsule to provide a desired seal. In some embodiments, the lid 104 may further include an opening 224 that may be adapted to receive the second end 126 of the mouthpiece 122. The mouthpiece 122 may include at least one extension 226 that may be received by the opening 224 of the lid 104 to secure the mouthpiece 122 to the lid 104. In some embodiments, the lid 104 may further include a protrusion that may be configured to mate with a recess 228 of the housing 102. The protrusion may fit within the recess 228 when the lid 104 is coupled to the housing 102 in the closed position.

[0082] In at least one exemplary embodiment shown in FIG. 2B , the housing 102 defines a charging connector or port 170. For example, the charging connector 170 may be defined / located at a bottom or second end of the housing 102 distal from the capsule-receiving cavity 210. The charging connector 170 may be configured to receive current from an external power source (e.g., via a USB / mini-USB cable) to charge the power source 150 internal to the aerosol generating device 100. For example, in at least one exemplary embodiment as best shown in FIG. 2C , the charging connector 170 may be an assembly defining a cavity 171 having a protrusion 175 within the cavity 171. In at least one exemplary embodiment, the protrusion 175 does not extend beyond the edge of the cavity 171. Additionally, charging connector 170 may also be configured to transmit data to and / or receive data from (e.g., via a USB / mini-USB cable) another aerosol generating device (e.g., a heat not burn (HNB) aerosol generating device) and / or other electronic devices (e.g., a phone, tablet, computer, etc.). In at least one embodiment, device 100 may alternatively or additionally be configured to wirelessly communicate (e.g., via Bluetooth) with such other aerosol generating devices and / or electronic devices.

[0083] In at least one exemplary embodiment, as best shown in FIG. 2C , a protective grill 172 is disposed around the charging connector 170. The protective grill 172 may be configured to help reduce or prevent the intrusion of debris and / or the inadvertent blockage of incoming airflow. For example, the protective grill 172 may define a plurality of holes 173 along its length or course. As shown, the protective grill 172 may have an annular configuration that surrounds the charging connector 170. In this regard, the holes 173 may also be disposed around the charging connector 170 (e.g., in a serial arrangement). Each hole 173 may have, without limitation, an oval or circular shape. In at least one exemplary embodiment, the protective grill 172 may include an approved food contact material. For example, the protective grill 172 may include plastic, metal (e.g., stainless steel, aluminum), or any combination thereof. In at least one exemplary embodiment, the surface of the protective grill 172 may be coated with a thin layer of plastic and / or anodized, for example.

[0084] The holes 173 in the protective grille 172 can function as an inlet for air to be drawn into the aerosol generating device 100. During operation of the aerosol generating device 100, ambient air entering through the holes 173 in the protective grille 172 around the charging connector 170 converges to form a combined flow that travels to the capsule 214. For example, the holes 173 may be in fluid communication with the capsule-receiving cavity 210. In at least one exemplary embodiment, air can be drawn from the holes 173 through the capsule-receiving cavity 210. For example, air can be drawn through the capsule 214 received by the capsule-receiving cavity 210 and out of the replaceable mouthpiece 190.

[0085] It should be understood that the device 100 and capsule 214 may include additional elements (e.g., heaters and internal airflow paths, etc.) as described in Atty. Dkt. No. 24000NV-000847-US, entitled "HEAT-NOT-BURN (HNB) AEROSOL-GENERATING DEVICES AND CAPSULES," filed on the same day herewith and bearing application serial number XX / XXX,XXX, the entire contents of which are incorporated herein by reference.

[0086] 3 and 4, like reference numerals refer to like elements.

[0087] 3, a block diagram of a capsule monitoring system 300 of device 100 is shown in accordance with an exemplary embodiment. In one example, capsule monitoring system 300 is configured to determine a resistance between a first contact of device 100 and a second contact of device 100 when power is applied. Capsule monitoring system 300 is configured to use the resistance between the first and second contacts to determine whether capsule 214 has been inserted into device 100 and, if capsule 214 has been inserted into device 100, whether the heater within capsule 214 is capable of operating within its operating specifications. Capsule monitoring system 300 can accomplish this by comparing the resistance between the first and second contacts to various ranges and thresholds based on the operating specifications of the heater of capsule 214.

[0088] Capsule monitoring system 300 can include a processor 302, a memory 304, a mechanism detection switch 306, a communication screen 136, a heating engine control 308, control buttons 138, and measurement circuitry 310. In some embodiments, processor 302 can include a multi-channel analog-to-digital converter (ADC) 312 and a timer 314. Processor 302 can be in communication with memory 304, a mechanism detection switch 306, a heating engine control 308, a communication screen 136, control buttons 138, measurement circuitry 310, a multi-channel ADC 312, and a timer 314.

[0089] The processor 302 may be hardware including logic circuits, a hardware / software combination that may be configured to execute software, or a combination thereof. The processor 302 may be configured as a special purpose machine (e.g., a processing unit) for executing software or instructions stored in the memory 304. The software may be embodied as program code including instructions for performing and / or controlling any or all of the operations described herein as being performed by the processor 302.

[0090] Although the timer 314 is shown within the processor, it should be understood that the timer may be external to the processor 302 .

[0091] Memory 304 may refer to any of the terms “storage medium,” “computer-readable storage medium,” or “non-transitory computer-readable storage medium,” and may represent one or more devices for storing data, including read-only memory (ROM), random-access memory (RAM), magnetic RAM, core memory, magnetic disk storage media, optical storage media, flash memory devices, and / or other tangible machine-readable media for storing information. The term “computer-readable medium” may include, but is not limited to, portable or fixed storage devices, optical storage devices, and various other media capable of storing, storing, or conveying instructions and / or data. Memory 304 may store operating parameters and computer-readable instructions for processor 302 to execute algorithms described herein. Memory 304 may store values ​​determined throughout operation of capsule monitoring system 300, such as determined resistance. While memory 304 is illustrated as being external to processor 302, in some exemplary embodiments, memory 304 may be included with processor 302.

[0092] The timer 314 may be a timing mechanism, such as an oscillator circuit, that allows the processor 302 to measure times related to the operation of the device, such as session times, capsule monitoring times, etc. of the device 100 .

[0093] The timer 314 may include one or more timers configured to measure one or more times associated with the device 100 and / or the capsule monitoring system 300. The timer 314 may include a capsule monitoring timer 316 configured to measure a capsule monitoring time. The capsule monitoring time may be the length of time that the activation power is applied to the first contact. The capsule monitoring time may be the length of the monitoring operation at startup. The capsule monitoring timer 316 may be configured to be reset when the capsule monitoring system 300 detects that the mechanism detection switch 306 has been activated.

[0094] The mechanism detection switch 306 may be configured to activate when the lid 104 of the device 100 is latched. In some embodiments, the mechanism detection switch 306 may be configured to activate when the second point 116 is coupled to the latch 208 when the lid 104 is placed in a closed position, such as when an adult consumer closes the lid 104. In other words, activation of the mechanism detection switch 306 may occur when an adult consumer closes the lid 104. Such closure may occur after the adult consumer inserts a capsule 214 into the capsule-receiving cavity 210 of the device 100.

[0095] The communication screen 136 can be configured to display information related to the device 100. The communication screen 136 can be configured to display one or more icons to communicate information related to the device 100. For example, the communication screen 136 can be configured to display a fault indicator that indicates to the adult consumer that the capsule 214 is not operating properly and should be removed from the device 100. In some embodiments, the communication screen 136 can be configured to display a capsule accepted indicator that can indicate to the adult consumer that the capsule 214 has been detected within the device 100 and that the heater of the capsule 214 has been found to be properly operable according to the heater's operating specifications during the startup monitoring operation.

[0096] Control button 138 can be configured to generate a signal indicating that the adult consumer has switched device 100 to an "on" state or an "off" state. When device 100 is switched to the "on" state, device 100 begins pre-heating. In some embodiments, pressing control button 138 initiates a session.

[0097] Heat engine control 308 can be communicatively coupled to the heater of device 100. Heat engine control 308 can be configured to turn on the heater when control button 138 detects that device 100 is powered on. Heat engine control 308 can also be configured to turn off the heater of device 100 if a capsule failure is detected by capsule monitoring system 300.

[0098] The measurement circuitry 310 may include multiple sensors or measurement circuits configured to provide signals indicative of the sensor or measurement information to the processor 302. In the example shown in FIG. 3, the measurement circuitry 310 provides current and voltage sensor or measurement information to the processor 302.

[0099] The measurement circuit 310 is connected to the processor 302 via each pin of the multi-channel ADC 312. In some embodiments, there may be multiple multi-channel ADCs 312, with each multi-channel ADC 312 connected to one or more measurement circuits 310. The voltage and current sensors or measurement information may be used by the processor 302 to determine the start-up resistance and pre-heating resistance between the first and second contacts. For example, the processor may utilize any of the following equations to determine the start-up resistance and pre-heating resistance between the first and second contacts: R ConPts = V ConPts / I ConPts P ConPts = I ConPts 2 *R ConPts where R ConPts is the resistance determination, and V ConPts is the voltage measured by the measurement circuit 310, and I ConPts is the voltage measured by the measurement circuit 310, and P ConPts is the power applied to the first contact. The multi-channel ADC 312 of the processor 302 can sample the output signals from the measurement circuits 310 at a sampling rate appropriate for the predetermined characteristic and / or parameter being measured by each measurement circuit 310. In some embodiments, the processor 302 can average the resistance calculated from the most recent 16 samples. Such an average value can result in a determination of resistance. Further details regarding the measurement circuits 310 are provided below with reference to FIG. 4.

[0100] With respect to the description of capsule monitoring system 300 below, a processing circuit (e.g., processor 302) can set various time, power, and resistance thresholds and apply power levels to the heater (via the heating engine control). References to "start-up" parameters of capsule monitoring system 300 may also be known as "first" parameters (e.g., start-up power may be first power, and start-up resistance may be first resistance).

[0101] The processor 302 can determine the activation resistance while activation power is applied to the first contact by the capsule monitoring system 300 during activation monitoring operations. The activation power may be applied after activation of the mechanism detection switch 306 to determine whether the capsule 214 is present in the device and whether the heater of the capsule 214 is operating within its prescribed resistance setting. The capsule monitoring system 300 can periodically monitor the activation resistance at a first time interval, such that one first time interval elapses between determinations of the activation resistance. The first time interval can be approximately 1 millisecond.

[0102] During the activation monitoring operation of the capsule monitoring system 300, the activation power may be increased by the processor 302. The activation power may be increased by the processor 302 at a second time interval by an activation power interval. The second time interval may be the same or substantially the same length of time as the first time interval. The second time interval may be approximately 1 millisecond. For example, if the activation power interval is 0.01 watts and the second time interval is 1 millisecond, the activation power is increased by 0.01 watts every millisecond.

[0103] In some embodiments, the processor 302 can monitor the activation power against an activation power threshold. The activation power threshold may be a given, desired, or alternatively predetermined amount of power that can produce a stable, relatively stable, or substantially stable resistance measurement. The capsule monitoring system 300 can stop applying activation power to the first contact when the activation power exceeds the activation power threshold. In some embodiments, the activation power threshold is approximately 2 watts.

[0104] In some embodiments, the processor 302 can monitor the capsule monitoring time against a time threshold. The time threshold may be a given, desired, or alternatively predetermined, time limit for the startup power to meet or exceed the startup power threshold during startup monitoring operation. The capsule monitoring system 300 may stop applying startup power to the first contact when the capsule monitoring time exceeds the time threshold. The time threshold may be equal to or substantially equal to the amount of time required for the startup power to increase to maximum power. In some embodiments, the time threshold is approximately 217 milliseconds.

[0105] In some embodiments, the processor 302 can determine whether the activation resistance is within a resistance operating range. The resistance operating range is the range of resistance across the heater that is within the heater's operating specifications. The resistance operating range can be extended to account for measurement accuracy and / or contact resistance. In some embodiments, the lower limit of the resistance operating range can be approximately 2002 milliohms, which is included in the resistance operating range. In some embodiments, the upper limit of the resistance operating range can be approximately 2418 milliohms, which is included in the resistance operating range.

[0106] In some embodiments, the processor 302 can monitor the activation resistance against a maximum heater resistance. The maximum heater resistance may be the expected resistance across the heater while the heater is experiencing the maximum temperature likely to occur during use of the device 100, as determined by the processor 302. The maximum temperature the heater is likely to achieve may be the hot shutoff temperature of the device 100. In some embodiments, the maximum heater resistance may be further increased to account for variations in resistance and / or to accommodate slight variations in the temperature coefficient of resistance (TCR) of the material used in the heater. If the activation resistance exceeds the maximum heater resistance during activation monitoring operation, the capsule monitoring system 300 will not detect the presence of a capsule and heater in the device 100 because the activation resistance exceeds the maximum resistance that can occur with the presence of a heater. In some embodiments, the maximum heater resistance is 3327 milliohms.

[0107] In some embodiments, the processor 302 can determine whether the activation resistance is within a resistance range. The resistance range is a range of resistance across the heater that is within the operating limits of the device 100. In some embodiments, the lower limit of the resistance range may be approximately half of the minimum heater operating resistance that the lower limit of the resistance range falls within. In some embodiments, the minimum heater operating resistance is approximately 2002 milliohms. In some embodiments, the upper limit of the resistance range may be substantially equal to the maximum heater resistance that the upper limit of the resistance range falls within.

[0108] The processor 302 may determine the preheat resistance while the preheat power is applied to the first contact during the preheat monitoring operation. The preheat power may be applied only after the capsule monitoring system 300 detects the presence of the capsule 214 in the device 100 during the start-up monitoring operation. The processor 302 may periodically monitor the preheat resistance at a third time interval, such that one third time interval elapses between determinations of the preheat resistance. The third time interval may be approximately 1 millisecond.

[0109] The preheat power may be applied after an adult consumer of the device initiates a device session. The preheat power is applied to the heater to heat consumables in the capsule 214 in preparation for use of the device 100. The preheat power may be increased by the processor 302 throughout the preheat monitoring operation of the capsule monitoring system 300. The preheat power may be increased by a preheat power interval at a fourth time interval. The fourth time interval may be the same or substantially the same length as the third time interval. The fourth time interval may be approximately 1 millisecond. For example, if the preheat power interval is 0.01 watts and the fourth time interval is 1 millisecond, the preheat power increases by 0.01 watts every millisecond.

[0110] The processor 302 can compare the preheat resistance with the start-up resistance to determine whether the electrical connection between the first and / or second contacts and the heater is stable, relatively stable, or substantially stable. In some embodiments, the capsule monitoring system 300 can terminate a session or prevent the session from starting after detecting a problem with the heater or electrical connection. In some embodiments, the capsule monitoring system 300 can alert the adult consumer to such a problem by displaying a fault indicator. In some embodiments, the processor 302 can determine whether the preheat resistance is within a resistance tolerance range. The resistance tolerance range is a range of resistance values ​​based on the start-up resistance stored in the memory 304 of the capsule monitoring system 300. When the preheat resistance is within the resistance tolerance range, the electrical connection between the first and / or second contacts and the heater is stable, relatively stable, or substantially stable. In some embodiments, the boundaries of the resistance tolerance range can be approximately 15 milliohms above and below the start-up resistance, where the boundaries of the resistance tolerance range are included in the resistance tolerance range. In some embodiments, the boundaries of the resistance tolerance range may be about 30 milliohms above and about 30 milliohms below the start-up resistance, where the boundaries of the resistance tolerance range are included in the resistance tolerance range.

[0111] In some embodiments, the processor 302 can monitor the preheat power against a preheat power threshold. The preheat power threshold can be an amount of power that is likely to produce a stable, relatively stable, or substantially stable resistance measurement. In some embodiments, the preheat power threshold can be substantially the same as the activation power threshold. In some embodiments, the preheat power threshold is approximately 2 watts.

[0112] In some embodiments, the processor 302 can determine whether the preheat resistance is within a resistance range.

[0113] In some embodiments, the capsule monitoring system 300 can determine that the capsule 214 has not been inserted into the device 100. In such embodiments, the capsule monitoring system 300 can return the device 100 to normal operation. When the capsule monitoring system 300 returns the device 100 to normal operation, the device 100 can continue with the operation that was occurring before detecting that the capsule 214 had not been inserted. In some embodiments, this can include the communication screen 136 remaining off and not providing a notification to the adult consumer. In some embodiments, if the device 100 was performing a pre-heat operation before the pre-heat monitoring operation began, the device 100 can return to pre-heat operation (i.e., normal operation) after determining that the pre-heat resistance is within the resistance tolerance range.

[0114] FIG. 4 illustrates a heating system 400 for the apparatus 100 and capsule 214 in accordance with one or more exemplary embodiments.

[0115] 4, heating system 400 includes device heating system 402 and capsule heating system 404. Device heating system 402 may be included in device 100, and capsule heating system 404 may be included in capsule 214.

[0116] The capsule heating system 404 may include a body electrical / data interface (not shown) for transferring power and / or data between the device 100 and the capsule 214. According to at least one exemplary embodiment, electrical contacts may function as the body electrical interface, although exemplary embodiments are not limited in this respect.

[0117] The device heating system 402 includes a processor 302, a power supply 410, a measurement circuit 310, a heating engine control 308, a communication screen 136, a control button 138, a memory 304, and a timer 314. The device heating system 402 may further include a first contact 419 and a second contact 421 for providing power from the device 100 to the capsule 214. The processor 302 may further include a multi-channel ADC 423. The processor 302 is communicatively coupled to the device sensor 310, the heating engine control 308, a communication screen 136, a memory 304, a control button 138, a timer 314, and a power supply 410.

[0118] The power supply 410 may be an internal power source for powering the device 100 and the capsule 214. The power supply from the power supply 410 may be controlled by the processor 302 through a device power control circuit (not shown). The power control circuit may include one or more switches or transistors for regulating the power output from the power supply 410. The power supply 410 may be a lithium ion battery or a variant thereof (e.g., a lithium ion polymer battery).

[0119] 4, the measurement circuit 310 may include a current measurement circuit 420, a voltage measurement circuit 422, and a compensation voltage measurement circuit 424. The measurement circuit 310 may be configured similarly to the measurement circuit 310 described above with reference to FIG. 3. The measurement circuit 310 may be connected to the processor 302 via respective pins of a multi-channel ADC 423.

[0120] The current measurement circuit 420 may be configured to output a (e.g., voltage) signal indicative of the current at the first contact 419 and / or the second contact 421. The voltage measurement circuit 422 may be configured to output a (e.g., voltage) signal indicative of the voltage between the first contact 419 and the second contact 421, which may be the voltage across the heater 406 when the heater is present in the apparatus 100. The current and / or voltage may be used to determine a characteristic such as the resistance between the first contact 419 and the second contact 421.

[0121] The compensation voltage measurement circuit 424 may be configured to output a (e.g., voltage) signal indicative of the resistance of the electrical connection between the capsule 214 and the device 100. In some exemplary embodiments, the compensation voltage measurement circuit 424 may provide the compensation voltage measurement signal to the processor 302, which may be used to calculate the corrected power to apply to the first contact.

[0122] To measure characteristics and / or parameters of device 100 and capsule 214 (e.g., heater 406 voltage, current, resistance, temperature, etc.), processor 302 may sample output signals from device sensors 310 at a sampling rate appropriate for the predetermined characteristic and / or parameter measured by each device sensor. In some embodiments, the sampling rate of the output signals from the device sensors may be the same as the capsule monitoring system 300 first time interval and the capsule monitoring system third time interval used during the start-up monitoring operation and the pre-heat monitoring operation, respectively.

[0123] Additional details and / or alternatives regarding the voltage measurement circuit, current measurement circuit, and / or compensation voltage measurement circuit are set forth in U.S. Application No. 17 / 151,409 (Atty. Dkt. No. 24000NV-000670-US), filed January 18, 2021, entitled "Heat-Not-Burn (HNB) Aerosol-Generating Devices Including Intra-Draw Heater Control, and Methods of Controlling a Heater," the entire contents of which are incorporated herein by reference.

[0124] 4, the processor 302 may control the power to the first contact 419 supplied to the heater 406 to heat the aerosol-generating substrate according to a heating profile (e.g., heating based on volume, temperature, flavor, etc.) during a pre-heat monitoring operation. The heating profile may be determined based on empirical data and stored in the memory 304 of the device 100.

[0125] Referring to FIG. 5, a flowchart illustrating a method 500 of operating the capsule monitoring system 300 of the present apparatus, including startup monitoring operations, is shown. The method 500 of FIG. 5 may be performed, for example, by the processor 302. Steps identified in the following description as being performed by the processor 302 may, in some embodiments, be performed by other elements of the capsule monitoring system 300. For illustrative purposes, the method 500 shown in FIG. 5 will be described with reference to the example embodiments shown in FIG. 3 and / or FIG. 4. However, example embodiments should not be limited to these examples.

[0126] In FIG. 5, method 500 begins at step 502 when capsule monitoring system 300 detects that mechanism detection switch 306 has been activated.

[0127] The capsule monitoring system 300 then applies activation power to the first contact in step 504. In step 506, an activation resistance is determined by the capsule monitoring system 300 while the activation power is applied to the first contact. The activation resistance may be determined by the processor 302 based on sensor or measurement information provided by the measurement circuit 310.

[0128] Next, the method 500 proceeds to conditional step 508, where the processor 302 determines whether the activation resistor is within the resistor operating range.

[0129] If the processor 302 determines in conditional step 508 that the activation resistance is within the resistance operating range, the method 500 proceeds to step 510, where the capsule monitoring system 300 displays a capsule acceptance indicator. The capsule acceptance indicator may be displayed on the communication screen 136 of the capsule monitoring system 300.

[0130] Returning to conditional step 508, if processor 302 determines in conditional step 508 that the activation resistance is not within the resistance operating range, method 500 proceeds to step 512, where capsule monitoring system 300 prevents device 100 from preheating.

[0131] Referring to FIG. 6, a flowchart illustrating a method 600 of operating the capsule monitoring system 300 of the present apparatus, including start-up monitoring operations and preheat monitoring operations, is shown. The method 600 of FIG. 6 may be performed, for example, by the processor 302. Steps identified in the following description as being performed by the processor 302 may, in some embodiments, be performed by other elements of the capsule monitoring system 300. For illustrative purposes, the method 600 shown in FIG. 6 will be described with reference to the example embodiments shown in FIG. 3 and / or FIG. 4, although example embodiments should not be limited to these examples.

[0132] 6, method 600 begins at step 602 when capsule monitoring system 300 detects that mechanism detection switch 306 has been activated. Step 602 marks the beginning of the activation monitoring operation.

[0133] The capsule monitoring system 300 then applies activation power to the first contact in step 604 .

[0134] In step 606, the start-up resistance is determined by the processor 302.

[0135] After the processor 302 determines the activation resistance, the capsule monitoring system 300 stores the activation resistance in the memory 304 of the capsule monitoring system 300 in step 608. The capsule monitoring system 300 stops applying activation power to the first contact in step 610, ending the activation monitoring operation.

[0136] Following step 610, the capsule monitoring system 300 detects the start of a session of the device 100 in step 612. This is the start of a preheat monitoring operation and a preheat session operation. The preheat session operation heats the consumables within the capsule 214 in preparation for operation of the device 100 by the adult consumer. The start of a session may occur when the adult consumer operates the control button 138.

[0137] The method 600 then proceeds to step 614, where the capsule monitoring system 300 applies preheat power to the first contact. The method 600 then proceeds to step 616, where the processor 302 determines a preheat resistance.

[0138] Next, the method 600 proceeds to conditional step 618 where the processor 302 determines whether the preheat resistance is within the resistance tolerance range.

[0139] If in conditional step 618, processor 302 determines that the preheat resistance is within the resistance tolerance range, method 600 proceeds to step 620, where capsule monitoring system 300 continues preheating the session. Continuing preheating the session in step 620 ends the preheat monitoring operation.

[0140] Returning to conditional step 618, if the processor 302 determines that the preheat resistance is not within the resistance tolerance range, the method proceeds to step 622, where the capsule monitoring system 300 ceases applying preheat power to the first contact and the preheat monitoring operation ends.

[0141] Referring to FIG. 7, a flowchart illustrating a method 700 of operating the capsule monitoring system 300 of the present apparatus, including startup monitoring operations, is shown. The method 700 of FIG. 7 may be performed, for example, by the processor 302. Steps identified in the following description as being performed by the processor 302 may, in some embodiments, be performed by other elements of the capsule monitoring system 300. For illustrative purposes, the method 700 shown in FIG. 7 will be described with reference to the example embodiments shown in FIG. 3 and / or FIG. 4. However, example embodiments should not be limited to these examples.

[0142] 7, method 700 begins at step 702 when capsule monitoring system 300 detects activation of mechanism detection switch 306. Detecting activation of mechanism detection switch 306 initiates an activation monitoring operation.

[0143] The method then proceeds to step 704, where the processor 302 starts a capsule monitoring timer.

[0144] The method 700 then proceeds to step 706, where the capsule monitoring system 300 increases the activation power applied to the first contact by an activation power interval.

[0145] Next, the method 700 proceeds to step 708, where the processor 302 determines the start-up resistance.

[0146] After the activation resistance is determined, processor 302 determines, in a conditional step 710, whether the activation power exceeds an activation power threshold.

[0147] If, in conditional step 710 , processor 302 determines that the activation power exceeds the activation power threshold, capsule monitoring system 300 stores the activation resistance in memory 304 of capsule monitoring system 300 in step 712 .

[0148] Next, in step 714, the capsule monitoring system 300 stops applying activation power to the first contact.

[0149] Next, the method 700 proceeds to conditional step 716, where the processor 302 determines whether the activation resistor is within the resistor operating range.

[0150] If in conditional step 716, processor 302 determines that the start-up resistance is within the resistance operating range, method 700 proceeds to step 718, where capsule monitoring system 300 displays a capsule accepted indicator. Method 700 reaches step 718 if an out-of-specification heater for capsule 214 is present in device 100. Once step 718 indicates that the capsule is accepted, the start-up monitoring operation ends. After the capsule accepted indicator is displayed in step 718, device 100 may be ready to receive instructions to begin a session and preheat monitoring operation.

[0151] Returning to conditional step 716 , if processor 302 determines that the activation resistance is not within the resistance operating range, method 700 proceeds to conditional step 720 .

[0152] In a conditional step 720, the processor 302 determines whether the activation resistance exceeds the maximum heater resistance.

[0153] If, in conditional step 720, the processor 302 determines that the activation resistance exceeds the maximum heater resistance, the capsule monitoring system 300 returns the device 100 to normal operation in step 722. Returning to normal operation in step 722 terminates the activation monitoring operation because the capsule monitoring system 300 did not detect a capsule 214 present in the device 100. In some embodiments, normal operation in step 722 may allow the adult consumer to insert a capsule 214 into the device 100 in order to continue operation of the device 100.

[0154] Returning to step 720 , if the processor 302 determines that the activation resistance does not exceed the maximum heater resistance, the method 700 proceeds to step 724 .

[0155] In step 724, the capsule monitoring system 300 displays a fault indicator because it may have detected a problem with the heater in the capsule 214. Displaying the fault indicator in step 724 terminates the startup monitoring operation. Displaying the fault indicator may instruct the adult consumer to remove and replace the capsule 214.

[0156] Returning to conditional step 710 , if processor 302 determines that the wake-up power does not exceed the wake-up power threshold, method 700 proceeds to conditional step 726 .

[0157] In a conditional step 726, processor 302 determines whether the capsule monitoring time exceeds a time threshold.

[0158] If the processor 302 determines that the capsule monitoring time exceeds the time threshold, the method proceeds to step 728 .

[0159] In step 728, the capsule monitoring system 300 stops applying activation power to the first contact. The method 700 then proceeds to step 722 where the capsule monitoring system 300 returns the device 100 to normal operation because the capsule monitoring system 300 does not detect the presence of the capsule 214 within the device 100.

[0160] Returning to step 726 , if the capsule monitoring system 300 determines that the capsule monitoring time does not exceed the time threshold, then the method 700 proceeds to conditional step 730 .

[0161] In a conditional step 730, processor 302 determines whether the activation resistance is within the resistance range.

[0162] If processor 302 determines in conditional step 730 that the activation resistance is not within the resistance range, method 700 proceeds to step 732 .

[0163] In step 732, the capsule monitoring system 300 stops applying activation power to the first contact.

[0164] Next, the method 700 proceeds to conditional step 720 where the processor 302 determines whether the activation resistance exceeds the maximum heater resistance.

[0165] If, in conditional step 720, the processor 302 determines that the activation resistance exceeds the maximum heater resistance, then in step 722 the capsule monitoring system 300 returns the device 100 to normal operation. Returning to normal operation in step 722 terminates the activation monitoring operation because the capsule monitoring system 300 did not detect a capsule 214 present in the device 100. In some embodiments, normal operation in step 722 may allow the adult consumer to insert a capsule 214 into the device 100 in order to continue operation of the device 100.

[0166] Returning to step 720 , if the processor 302 determines that the activation resistance does not exceed the maximum heater resistance, the method 700 proceeds to step 724 .

[0167] In step 724, the capsule monitoring system 300 displays a fault indicator because the capsule monitoring system 300 may have detected a problem with the heater in the capsule 214. Displaying the fault indicator in step 724 terminates the startup monitoring operation. Displaying the fault indicator can instruct the adult consumer to remove and replace the capsule 214.

[0168] Returning to conditional step 730, if the processor 302 determines that the activation resistance is within the resistance range, the method 700 proceeds to step 706, where the capsule monitoring system 300 increases the activation power applied to the first contact by an activation power interval. The activation power applied to the first contact may be increased after a second time interval has elapsed since the previous increase in the activation power applied to the first contact.

[0169] Referring to FIG. 8 , a flowchart illustrating a method 800 of operation of the capsule monitoring system 300 of the present apparatus, including a preheat monitoring operation, is shown. Method 800 of FIG. 8 may be performed, for example, by processor 302. Steps identified in the following description as being performed by processor 302 may, in some embodiments, be performed by other elements of capsule monitoring system 300. For illustrative purposes, method 800 shown in FIG. 8 will be described with reference to the example embodiments shown in FIG. 3 and / or FIG. 4 . However, example embodiments should not be limited to these examples. Method 800 of FIG. 8 may occur after the start-up monitoring operation shown in method 700 of FIG. 7 has completed in step 718.

[0170] 8, the method 800 begins at step 802 when the capsule monitoring system 300 detects that a session has begun on the device 100. The session may be initiated by an adult consumer operating the control button 138.

[0171] The method 800 then proceeds to step 804, where the capsule monitoring system 300 increases the preheat power applied to the first contact by a preheat power interval.

[0172] The method 800 then proceeds to step 806, where the processor 302 determines the preheat resistance. After the start resistance is determined in step 806, the processor 302 determines in conditional step 808 whether the preheat power exceeds a preheat power threshold.

[0173] If, in conditional step 808, processor 302 determines that the preheat power exceeds the preheat power threshold, then, in conditional step 810, processor 302 determines whether the preheat power is within the resistance tolerance range.

[0174] If the processor 302 determines in conditional step 810 that the preheat power is within the resistance tolerance range, the method 800 proceeds to step 812, where the capsule monitoring system 300 continues the preheating operation of the device 100 that was previously initiated by the adult consumer initiating the session. Step 812 ends the preheat monitoring operation and continues the session of the device 100.

[0175] Returning to conditional step 810, if capsule monitoring system 300 determines that the preheat resistance is not within the resistance tolerance range, then in step 814 capsule monitoring system 300 stops supplying preheat power to the first contact.

[0176] Next, in step 816, the capsule monitoring system displays a fault indicator and terminates the pre-heat monitoring operation because the capsule monitoring system 300 detected a problem with the heater or the electrical connection between the first and / or second contacts and the heater. Displaying the fault indicator can instruct the adult consumer to remove and replace the capsule 214. Step 816 terminates the pre-heat monitoring operation and ends the session of the device 100.

[0177] Returning to conditional step 808 , if processor 302 determines that the preheat power does not exceed the preheat power threshold, then method 800 proceeds to conditional step 818 .

[0178] In a conditional step 818, processor 302 determines whether the preheat resistance is within the resistance range.

[0179] If the processor 302 determines in conditional step 818 that the activation resistance is not within the resistance range, the method 800 proceeds to step 814 .

[0180] In step 814, the capsule monitoring system 300 stops supplying preheating power to the first contact. The method 800 then proceeds to step 816, where the capsule monitoring system 300 displays a fault indicator due to the capsule monitoring system 300 detecting a problem with the heater or the electrical connection between the first and / or second contacts and the heater. Displaying the fault indicator may instruct the adult consumer to remove and replace the capsule 214. Step 816 ends the preheating monitoring operation and terminates the session of the device 100.

[0181] Returning to conditional step 818, if the processor 302 determines that the activation resistance is within the resistance range, the method 800 proceeds to step 804, where the capsule monitoring system 300 increases the preheat power applied to the first contact by a preheat power interval. The preheat power applied to the first contact may be increased after a fourth time interval has elapsed since the previous increase in the preheat power applied to the first contact.

[0182] The systems, devices, and methods described herein may provide one or more advantages. The capsule monitoring system 300 can provide the device 100 with a method for detecting whether a capsule 214 has been inserted into the device 100 without requiring a sensor to detect the presence of the capsule 214 within the device 100. The capsule monitoring system 300 can also monitor for problems with the heater of the capsule 214 that may interfere with a desirable sensory experience for an adult consumer. Additionally, the capsule monitoring system 300 can detect when the electrical connection between the first and / or second contacts and the heater is not stable. Additionally, the capsule monitoring system 300 can provide a method for communicating to an adult consumer a problem with the heater of the capsule 214 or the electrical connection between the first and / or second contacts and the heater. Such communication can instruct the adult consumer to remove and replace the capsule 214.

[0183] The appended claims define novel and inventive aspects of the subject matter described above, but the claims may also encompass additional subject matter not specifically recited. For example, certain features, elements, or aspects may be omitted from the claims if they are not necessary to distinguish the novel and inventive features from those already known to those skilled in the art. Also, features, elements, and aspects described in the context of certain embodiments may be omitted, combined, or replaced with alternative features serving the same, equivalent, or similar purpose without departing from the scope of the invention as defined by the appended claims.

Claims

1. 1. A capsule monitoring system for an aerosol generating device, comprising: The capsule monitoring system includes at least one processor; and a memory coupled to the at least one processor that stores instructions; wherein the at least one processor executes the instructions to provide the capsule monitoring system with: Detecting the actuation of a mechanism detection switch of the aerosol generating device; applying a first power to a first contact of the aerosol generating device; determining a first resistance between the first contact and a second contact, wherein the first contact and the second contact are configured to contact a heater; determining whether the first resistor is within a resistor operating range; The capsule monitoring system causes a capsule accepted indicator to be displayed in response to the first resistance being within the resistance operating range.

2. 2. The capsule monitoring system according to claim 1, The at least one processor executes the instructions to provide the capsule monitoring system with: starting a capsule monitoring timer configured to measure a capsule monitoring time; A capsule monitoring system that resets the capsule monitoring timer in response to activation of the mechanism detection switch.

3. 3. The capsule monitoring system according to claim 2, The at least one processor executes the instructions to provide the capsule monitoring system with: The capsule monitoring system increases the first power until the first power exceeds a first power threshold.

4. 4. The capsule monitoring system according to claim 3, The at least one processor executes the instructions to provide the capsule monitoring system with: monitoring the first power against the first power threshold; monitoring the capsule monitoring time against a time threshold; determining whether the first resistance is within a resistance range in response to the first power not exceeding the first power threshold and the capsule monitoring time not exceeding the time threshold; A capsule monitoring system that stops applying the first power to the first contact of the aerosol generating device in response to the first resistance not being within the resistance range.

5. 5. The capsule monitoring system according to claim 4, The at least one processor executes the instructions to provide the capsule monitoring system with: Capsule monitoring system that displays a fault indicator.

6. 4. The capsule monitoring system according to claim 3, The at least one processor executes the instructions to provide the capsule monitoring system with: monitoring the first power against the first power threshold; monitoring the capsule monitoring time against a time threshold; determining whether the first resistance is within a resistance range in response to the first power not exceeding the first power threshold and the capsule monitoring time not exceeding the time threshold; A capsule monitoring system that increases the first power applied to the first contact of the aerosol generating device in response to the first resistance being within the resistance range.

7. 4. The capsule monitoring system according to claim 3, The at least one processor executes the instructions to provide the capsule monitoring system with: monitoring the first power against the first power threshold; monitoring the capsule monitoring time against a time threshold; A capsule monitoring system that stops applying the first power to the first contact of the aerosol generating device in response to the first power not exceeding the first power threshold and the capsule monitoring time exceeding the time threshold.

8. 8. The capsule monitoring system according to claim 7, The at least one processor executes the instructions to provide the capsule monitoring system with: A capsule monitoring system that causes the aerosol generating device to return to normal operation.

9. 4. The capsule monitoring system according to claim 3, The at least one processor executes the instructions to provide the capsule monitoring system with: monitoring the first power against the first power threshold; monitoring the first resistance against a maximum heater resistance in response to the first resistance not being within the resistance operating range and the first power exceeding the first power threshold; The capsule monitoring system causes a fault indicator to be displayed in response to the first resistance not exceeding the maximum heater resistance.

10. 4. The capsule monitoring system according to claim 3, The at least one processor executes the instructions to provide the capsule monitoring system with: monitoring the first power against the first power threshold; monitoring the first resistance against a maximum heater resistance in response to the first resistance not being within the resistance operating range and the first power exceeding the first power threshold; A capsule monitoring system that, in response to the first resistance exceeding the maximum heater resistance, causes the aerosol generating device to return to normal operation.

11. 4. The capsule monitoring system according to claim 3, The at least one processor executes the instructions to provide the capsule monitoring system with: monitoring the first power against the first power threshold; The capsule monitoring system stops application of the first power to the first contact in response to the first power exceeding the first power threshold.

12. 2. The capsule monitoring system according to claim 1, The at least one processor executes the instructions to provide the capsule monitoring system with: storing the first resistance in the memory of the capsule monitoring system after determining that the first resistance is within the resistance operating range; Detecting the start of a session of the aerosol generating device; applying preheating power to the first contact of the aerosol generating device; determining a preheat resistance between the first junction and the second junction; determining whether the preheat resistance is within a resistance tolerance range based on the first resistance stored in the memory of the aerosol generating device; A capsule monitoring system that, in response to the preheat resistance being within the resistance tolerance range, causes the aerosol generating device to return to preheat operation for the session.

13. 13. The capsule monitoring system according to claim 12, The at least one processor executes the instructions to provide the capsule monitoring system with: The capsule monitoring system increases the preheat power until the preheat power exceeds a preheat power threshold.

14. 14. The capsule monitoring system according to claim 13, The at least one processor executes the instructions to provide the capsule monitoring system with: monitoring the preheat power against the preheat power threshold; determining whether the preheat resistance is within a resistance range in response to the preheat power not exceeding the preheat power threshold; A capsule monitoring system that stops applying the preheating power to the first contact of the aerosol generating device in response to the preheating resistance not being within the resistance range.

15. 15. The capsule monitoring system of claim 14, The at least one processor executes the instructions to provide the capsule monitoring system with: Capsule monitoring system that displays a fault indicator.

16. 14. The capsule monitoring system according to claim 13, The at least one processor executes the instructions to provide the capsule monitoring system with: monitoring the preheat power against the preheat power threshold; determining whether the preheat resistance is within a resistance range in response to the preheat power not exceeding the preheat power threshold; A capsule monitoring system that increases the preheating power applied to the first contact of the aerosol generating device in response to the preheating resistance being within the resistance range.

17. 14. The capsule monitoring system according to claim 13, The at least one processor executes the instructions to provide the capsule monitoring system with: monitoring the preheat power against the preheat power threshold; A capsule monitoring system that stops applying the preheating power to the first contact of the aerosol generating device in response to the preheating resistance not being within the resistance tolerance range and the preheating power exceeding the preheating power threshold.

18. 18. The capsule monitoring system of claim 17, The at least one processor executes the instructions to provide the capsule monitoring system with: Capsule monitoring system that displays a fault indicator.

19. 2. The capsule monitoring system according to claim 1, A capsule monitoring system, wherein the mechanism detection switch is configured to activate when a closing mechanism of the aerosol generating device is closed.

20. 20. The capsule monitoring system of claim 19, A capsule monitoring system, wherein the closing mechanism is configured to secure a capsule within the aerosol generating device.

21. 2. The capsule monitoring system according to claim 1, The at least one processor executes the instructions to provide the capsule monitoring system with: A capsule monitoring system that initiates a preheating operation of the aerosol generating device after at least one of determining whether the first resistance is within the resistance operating range and displaying the capsule acceptance indicator.

22. 1. A capsule monitoring system for an aerosol generating device, comprising: The capsule monitoring system includes at least one processor; and a memory coupled to the at least one processor that stores instructions; wherein the at least one processor executes the instructions to provide the capsule monitoring system with: Detecting the start of a session of the aerosol generating device; applying preheating power to a first contact of the aerosol generating device; determining a preheat resistance between the first and second junctions; determining whether the preheat resistance is within a resistance tolerance range based on a first resistance stored in the memory of the aerosol generating device; A capsule monitoring system that continues preheating operations for the session in response to the preheating resistance being within the resistance tolerance range.

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