WO2023006421A1 - Interactive aerosol provision system - Google Patents
Interactive aerosol provision system Download PDFInfo
- Publication number
- WO2023006421A1 WO2023006421A1 PCT/EP2022/069537 EP2022069537W WO2023006421A1 WO 2023006421 A1 WO2023006421 A1 WO 2023006421A1 EP 2022069537 W EP2022069537 W EP 2022069537W WO 2023006421 A1 WO2023006421 A1 WO 2023006421A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aerosol delivery
- sensor
- delivery system
- person
- activity state
- Prior art date
Links
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Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/51—Arrangement of sensors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/53—Monitoring, e.g. fault detection
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/60—Devices with integrated user interfaces
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/65—Devices with integrated communication means, e.g. wireless communication means
Definitions
- the present invention relates to an interactive aerosol provision system.
- Aerosol provision systems are popular with users as they enable the delivery of active ingredients (such as nicotine) to the user in a convenient manner and on demand.
- electronic cigarettes generally contain a reservoir of a source liquid containing a formulation, typically including nicotine, from which an aerosol is generated, e.g. through heat vaporisation.
- An aerosol source for an aerosol provision system may thus comprise a heater having a heating element arranged to receive source liquid from the reservoir, for example through wicking / capillary action.
- Other source materials may be similarly heated to create an aerosol, such as botanical matter, or a gel comprising an active ingredient and/or flavouring.
- the e-cigarette may be thought of as comprising or receiving a payload for heat vaporisation.
- Such devices are usually provided with one or more air inlet holes located away from a mouthpiece end of the system.
- air inlet holes located away from a mouthpiece end of the system.
- a user sucks on a mouthpiece connected to the mouthpiece end of the system, air is drawn in through the inlet holes and past the aerosol source.
- There is a flow path connecting between the aerosol source and an opening in the mouthpiece so that air drawn past the aerosol source continues along the flow path to the mouthpiece opening, carrying some of the aerosol from the aerosol source with it.
- the aerosol-carrying air exits the aerosol provision system through the mouthpiece opening for inhalation by the user.
- an electric current is supplied to the heater when a user is drawing/ puffing on the device.
- the electric current is supplied to the heater, e.g. resistance heating element, in response to either the activation of an airflow sensor along the flow path as the user inhales/draw/puffs or in response to the activation of a button by the user.
- the heat generated by the heating element is used to vaporise a formulation.
- the released vapour mixes with air drawn through the device by the puffing consumer and forms an aerosol.
- the heating element is used to heat but typically not burn a botanical such as tobacco, to release active ingredients thereof as a vapour / aerosol.
- an aerosol delivery system is provided in accordance with claim 1.
- activity state determining method is provided in accordance with claim 19.
- Figure 1 is a schematic diagram of a delivery device in accordance with embodiments of the description.
- Figure 2 is a schematic diagram of a body of a delivery device in accordance with embodiments of the description.
- Figure 3 is a schematic diagram of a cartomiser of a delivery device in accordance with embodiments of the description.
- Figure 4 is a schematic diagram of a body of a delivery device in accordance with embodiments of the description.
- FIG. 5 is a schematic diagram of a delivery ecosystem in accordance with embodiments of the description.
- Figure 6 is a schematic diagram of a delivery device in accordance with embodiments of the description.
- FIG. 7 is a flow diagram of a method in accordance with embodiments of the description. DESCRIPTION OF THE EMBODIMENTS
- the term 'interactive aerosol provision system', or similarly 'delivery device' may encompass systems that deliver a least one substance to a user, and include non-combustible aerosol provision systems that release compounds from an aerosol-generating material without combusting the aerosol-generating material, such as electronic cigarettes, tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosol-generating materials; and aerosol-free delivery systems that deliver the at least one substance to a user orally, nasally, transdermally or in another way without forming an aerosol, including but not limited to, lozenges, gums, patches, articles comprising inhalable powders, and oral products such as oral tobacco which includes snus or moist snuff, wherein the at least one substance may or may not comprise nicotine.
- the substance to be delivered may be an aerosol-generating material or a material that is not intended to be aerosolised.
- either material may comprise one or more active constituents, one or more flavours, one or more aerosol-former materials, and/or one or more other functional materials.
- a delivery device or aerosol provision system e.g. a non combustible aerosol provision system
- EVPS electronic vapour provision system
- e-cigarette is sometimes used but this term may be used interchangeably with delivery device or aerosol provision system except where stated otherwise or where context indicates otherwise.
- 'vapour' and 'aerosol' are referred to equivalently herein.
- the electronic vapour / aerosol provision system may be an electronic cigarette, also known as a vaping device or electronic nicotine delivery device (END), although it is noted that the presence of nicotine in the aerosol-generating (e.g. aerosolisable) material is not a requirement.
- a non-combustible aerosol provision system is a tobacco heating system, also known as a heat-not-burn system. An example of such a system is a tobacco heating system.
- the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, one or a plurality of which may be heated.
- Each of the aerosol-generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine.
- the hybrid system comprises a liquid or gel aerosol generating material and a solid aerosol-generating material.
- the solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product.
- the non combustible aerosol provision system generates a vapour / aerosol from one or more such aerosol generating materials.
- the non-combustible aerosol provision system may comprise a non-combustible aerosol provision device and an article (otherwise referred to as a consumable) for use with the non combustible aerosol provision system.
- articles which themselves comprise a means for powering an aerosol generating component e.g. an aerosol generator such as a heater, vibrating mesh or the like
- the non-combustible aerosol provision device may comprise a power source and a controller.
- the power source may be an electric power source or an exothermic power source.
- the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosolisable material or heat transfer material in proximity to the exothermic power source.
- the power source such as an exothermic power source, is provided in the article so as to form the non-combustible aerosol provision.
- the article for use with the non-combustible aerosol provision device may comprise an aerosolisable material.
- the aerosol generating component is a heater capable of interacting with the aerosolisable material so as to release one or more volatiles from the aerosolisable material to form an aerosol.
- the aerosol generating component is capable of generating an aerosol from the aerosolisable material without heating.
- the aerosol generating component may be capable of generating an aerosol from the aerosolisable material without applying heat thereto, for example via one or more of vibrational, mechanical, pressurisation or electrostatic means.
- the aerosolisable material may comprise an active material, an aerosol forming material and optionally one or more functional materials.
- the active material may comprise nicotine (optionally contained in tobacco or a tobacco derivative) or one or more other non-olfactory physiologically active materials.
- a non-olfactory physiologically active material is a material which is included in the aerosolisable material in order to achieve a physiological response other than olfactory perception.
- the aerosol forming material may comprise one or more of glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso- Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
- the one or more functional materials may comprise one or more of flavours, carriers, pH regulators, stabilizers, and/or antioxidants.
- the article for use with the non-combustible aerosol provision device may comprise aerosolisable material or an area for receiving aerosolisable material.
- the article for use with the non-combustible aerosol provision device may comprise a mouthpiece.
- the area for receiving aerosolisable material may be a storage area for storing aerosolisable material.
- the storage area may be a reservoir.
- the area for receiving aerosolisable material may be separate from, or combined with, an aerosol generating area.
- Figure 1 is a schematic diagram of a vapour / aerosol provision system such as an e-cigarette 10 (not to scale), providing a non-limiting example of a delivery device in accordance with some embodiments of the disclosure.
- the e-cigarette has a generally cylindrical shape, extending along a longitudinal axis indicated by dashed line LA, and comprises two main components, namely a body 20 and a cartomiser 30.
- the cartomiser includes an internal chamber containing a reservoir of a payload such as for example a liquid comprising nicotine, a vaporiser (such as a heater), and a mouthpiece 35.
- a payload such as for example a liquid comprising nicotine
- a vaporiser such as a heater
- references to 'liquid' as a payload hereafter will be understood to be merely an example and can be substituted with any suitable payload such as botanical matter (for example tobacco that is to be heated rather than burned), or a gel comprising an active ingredient and/or flavouring.
- the reservoir may be a foam matrix or any other structure for retaining the liquid until such time that it is required to be delivered to the vaporiser.
- the vaporiser is for vaporising the liquid
- the cartomiser 30 may further include a wick or similar facility to transport a small amount of liquid from the reservoir to a vaporising location on or adjacent the vaporiser.
- a heater is used as a specific example of a vaporiser.
- other forms of vaporiser for example, those which utilise ultrasonic waves
- the type of vaporiser used may also depend on the type of payload to be vaporised.
- the body 20 includes a re-chargeable cell or battery to provide power to the e-cigarette 10 and a circuit board for generally controlling the e-cigarette.
- the heater receives power from the battery, as controlled by the circuit board, the heater vaporises the liquid and this vapour is then inhaled by a user through the mouthpiece 35.
- the body is further provided with a manual activation device 265, e.g. a button, switch, or touch sensor located on the outside of the body.
- the body 20 and cartomiser 30 may be detachable from one another by separating in a direction parallel to the longitudinal axis LA, as shown in Figure 1, but are joined together when the device 10 is in use by a connection, indicated schematically in Figure 1 as 25A and 25B, to provide mechanical and electrical connectivity between the body 20 and the cartomiser 30.
- the electrical connector 25B on the body 20 that is used to connect to the cartomiser 30 also serves as a socket for connecting a charging device (not shown) when the body 20 is detached from the cartomiser 30.
- the other end of the charging device may be plugged into a USB socket to re-charge the cell in the body 20 of the e-cigarette 10.
- a cable may be provided for direct connection between the electrical connector 25B on the body 20 and a USB socket.
- the e-cigarette 10 is provided with one or more holes (not shown in Figure 1) for air inlets. These holes connect to an air passage through the e-cigarette 10 to the mouthpiece 35. When a user inhales through the mouthpiece 35, air is drawn into this air passage through the one or more air inlet holes, which are suitably located on the outside of the e-cigarette. When the heater is activated to vaporise the nicotine from the cartridge, the airflow passes through, and combines with, the generated vapour, and this combination of airflow and generated vapour then passes out of the mouthpiece 35 to be inhaled by a user. Except in single-use devices, the cartomiser 30 may be detached from the body 20 and disposed of when the supply of liquid is exhausted (and replaced with another cartomiser if so desired).
- the e-cigarette 10 shown in Figure 1 is presented by way of example, and various other implementations can be adopted.
- the cartomiser 30 is provided as two separable components, namely a cartridge comprising the liquid reservoir and mouthpiece (which can be replaced when the liquid from the reservoir is exhausted), and a vaporiser comprising a heater (which is generally retained).
- the charging facility may connect to an additional or alternative power source, such as a car cigarette lighter.
- Figure 2 is a schematic (simplified) diagram of the body 20 of the e-cigarette 10 of Figure 1 in accordance with some embodiments of the disclosure.
- Figure 2 can generally be regarded as a cross- section in a plane through the longitudinal axis LA of the e-cigarette 10. Note that various components and details of the body, e.g. such as wiring and more complex shaping, have been omitted from Figure 2 for reasons of clarity.
- the body 20 includes a battery or cell 210 for powering the e-cigarette 10 in response to a user activation of the device. Additionally, the body 20 includes a control unit 205, for example a chip such as an application specific integrated circuit (ASIC) or microcontroller, for controlling the e-cigarette 10.
- the microcontroller or ASIC includes a CPU or micro-processor. The operations of the CPU and other electronic components are generally controlled at least in part by software programs running on the CPU (or other component). Such software programs may be stored in non-volatile memory, such as ROM, which can be integrated into the microcontroller itself, or provided as a separate component. The CPU may access the ROM to load and execute individual software programs as and when required.
- the microcontroller also contains appropriate communications interfaces (and control software) for communicating as appropriate with other devices in the body 10.
- the body 20 further includes a cap 225 to seal and protect the far (distal) end of the e-cigarette 10.
- a cap 225 to seal and protect the far (distal) end of the e-cigarette 10.
- the control unit or ASIC may be positioned alongside or at one end of the battery 210.
- the ASIC is attached to a sensor unit 215 to detect an inhalation on mouthpiece 35 (or alternatively the sensor unit 215 may be provided on the ASIC itself).
- An air path is provided from the air inlet through the e-cigarette, past the airflow sensor 215 and the heater (in the vaporiser or cartomiser 30), to the mouthpiece 35.
- the CPU detects such inhalation based on information from the airflow sensor 215.
- the connector 25B for joining the body 20 to the cartomiser 30.
- the connector 25B provides mechanical and electrical connectivity between the body 20 and the cartomiser 30.
- the connector 25B includes a body connector 240, which is metallic (silver- plated in some embodiments) to serve as one terminal for electrical connection (positive or negative) to the cartomiser 30.
- the connector 25B further includes an electrical contact 250 to provide a second terminal for electrical connection to the cartomiser 30 of opposite polarity to the first terminal, namely body connector 240.
- the electrical contact 250 is mounted on a coil spring 255.
- the connector 25A on the cartomiser 30 pushes against the electrical contact 250 in such a manner as to compress the coil spring in an axial direction, i.e. in a direction parallel to (co-aligned with) the longitudinal axis LA.
- this compression biases the spring 255 to expand, which has the effect of pushing the electrical contact 250 firmly against connector 25A of the cartomiser 30, thereby helping to ensure good electrical connectivity between the body 20 and the cartomiser 30.
- the body connector 240 and the electrical contact 250 are separated by a trestle 260, which is made of a non-conductor (such as plastic) to provide good insulation between the two electrical terminals.
- the trestle 260 is shaped to assist with the mutual mechanical engagement of connectors 25A and 25B.
- a button 265, which represents a form of manual activation device 265, may be located on the outer housing of the body 20.
- the button 265 may be implemented using any appropriate mechanism which is operable to be manually activated by the user - for example, as a mechanical button or switch, a capacitive or resistive touch sensor, and so on. It will also be appreciated that the manual activation device 265 may be located on the outer housing of the cartomiser 30, rather than the outer housing of the body 20, in which case, the manual activation device 265 may be attached to the ASIC via the connections 25A, 25B.
- the button 265 might also be located at the end of the body 20, in place of (or in addition to) cap 225.
- Figure 3 is a schematic diagram of the cartomiser 30 of the e-cigarette 10 of Figure 1 in accordance with some embodiments of the disclosure.
- Figure 3 can generally be regarded as a cross-section in a plane through the longitudinal axis LA of the e-cigarette 10. Note that various components and details of the cartomiser 30, such as wiring and more complex shaping, have been omitted from Figure 3 for reasons of clarity.
- the cartomiser 30 includes an air passage 355 extending along the central (longitudinal) axis of the cartomiser 30 from the mouthpiece 35 to the connector 25A for joining the cartomiser 30 to the body 20.
- a reservoir of liquid 360 is provided around the air passage 335. This reservoir 360 may be implemented, for example, by providing cotton or foam soaked in liquid.
- the cartomiser 30 also includes a heater 365 for heating liquid from reservoir 360 to generate vapour to flow through air passage 355 and out through mouthpiece 35 in response to a user inhaling on the e-cigarette 10.
- the heater 365 is powered through lines 366 and 367, which are in turn connected to opposing polarities (positive and negative, or vice versa) of the battery 210 of the main body 20 via connector 25A (the details of the wiring between the power lines 366 and 367 and connector 25A are omitted from Figure 3).
- the connector 25A includes an inner electrode 375, which may be silver-plated or made of some other suitable metal or conducting material.
- the inner electrode 375 contacts the electrical contact 250 of the body 20 to provide a first electrical path between the cartomiser 30 and the body 20.
- the inner electrode 375 pushes against the electrical contact 250 so as to compress the coil spring 255, thereby helping to ensure good electrical contact between the inner electrode 375 and the electrical contact 250.
- the inner electrode 375 is surrounded by an insulating ring 372, which may be made of plastic, rubber, silicone, or any other suitable material.
- the insulating ring is surrounded by the cartomiser connector 370, which may be silver-plated or made of some other suitable metal or conducting material.
- the cartomiser connector 370 contacts the body connector 240 of the body 20 to provide a second electrical path between the cartomiser 30 and the body 20.
- the inner electrode 375 and the cartomiser connector 370 serve as positive and negative terminals (or vice versa) for supplying power from the battery 210 in the body 20 to the heater 365 in the cartomiser 30 via supply lines 366 and 367 as appropriate.
- the cartomiser connector 370 is provided with two lugs or tabs 380A, 380B, which extend in opposite directions away from the longitudinal axis of the e-cigarette 10. These tabs are used to provide a bayonet fitting in conjunction with the body connector 240 for connecting the cartomiser 30 to the body 20.
- This bayonet fitting provides a secure and robust connection between the cartomiser 30 and the body 20, so that the cartomiser and body are held in a fixed position relative to one another, with minimal wobble or flexing, and the likelihood of any accidental disconnection is very small.
- the bayonet fitting provides simple and rapid connection and disconnection by an insertion followed by a rotation for connection, and a rotation (in the reverse direction) followed by withdrawal for disconnection. It will be appreciated that other embodiments may use a different form of connection between the body 20 and the cartomiser 30, such as a snap fit or a screw connection.
- Figure 4 is a schematic diagram of certain details of the connector 25B at the end of the body 20 in accordance with some embodiments of the disclosure (but omitting for clarity most of the internal structure of the connector as shown in Figure 2, such as trestle 260).
- Figure 4 shows the external housing 201 of the body 20, which generally has the form of a cylindrical tube.
- This external housing 201 may comprise, for example, an inner tube of metal with an outer covering of paper or similar.
- the external housing 201 may also comprise the manual activation device 265 (not shown in Figure 4) so that the manual activation device 265 is easily accessible to the user.
- the body connector 240 extends from this external housing 201 of the body 20.
- the body connector 240 as shown in Figure 4 comprises two main portions, a shaft portion 241 in the shape of a hollow cylindrical tube, which is sized to fit just inside the external housing 201 of the body 20, and a lip portion 242 which is directed in a radially outward direction, away from the main longitudinal axis (LA) of the e- cigarette.
- a collar or sleeve 290 Surrounding the shaft portion 241 of the body connector 240, where the shaft portion does not overlap with the external housing 201, is a collar or sleeve 290, which is again in a shape of a cylindrical tube.
- the collar 290 is retained between the lip portion 242 of the body connector 240 and the external housing 201 of the body, which together prevent movement of the collar 290 in an axial direction (i.e. parallel to axis LA). However, collar 290 is free to rotate around the shaft portion 241 (and hence also axis LA).
- the cap 225 is provided with an air inlet hole to allow air to flow when a user inhales on the mouthpiece 35.
- the majority of air that enters the device when a user inhales flows through collar 290 and body connector 240 as indicated by the two arrows in Figure 4.
- the e-cigarette 10 may operate within a wider delivery ecosystem 1.
- a number of devices may communicate with each other, either directly (shown with solid arrows) or indirectly (shown with dashed arrows).
- an e-cigarette 10 may communicate directly with one or more other classes of device (for example using Bluetooth ® or Wifi Direct ® ), including but not limited to a smartphone 100, a dock 200 (e.g. a home refill and/or charging station), a vending machine 300, or a wearable 400.
- these devices may cooperate in any suitable configuration to form a delivery system.
- the delivery device such as for example the e-cigarette 10
- the delivery device may communicate indirectly with one or more of these classes of device via a network such as the internet 500, for example using Wifi ® , near field communication, a wired link or an integral mobile data scheme.
- a network such as the internet 500, for example using Wifi ® , near field communication, a wired link or an integral mobile data scheme.
- the delivery device such as for example the e-cigarette 10
- the smartphone, dock, or other device within the delivery ecosystem such as a point of sale system / vending machine, may hence optionally act as a hub for one or more delivery devices that only have short range transmission capabilities.
- Such a hub may thus extend the battery life of a delivery device that does not need to maintain an ongoing WiFi ® or mobile data link.
- different types of data may be transmitted with different levels of priority; for example data relating to the user feedback system (such as user factor data or feedback action data, as discussed herein) may be transmitted with a higher priority than more general usage statistics, or similarly some user factor data relating to more short-term variables (such as current physiological data) may be transmitted with a higher priority than user factor data relating to longer-term variables (such as current weather, or day of the week).
- a non-limiting example transmission scheme allowing higher and lower priority transmission is LoRaWAN.
- the other classes of device in the ecosystem such as the smartphone, dock, vending machine (or any other point of sale system) and/or wearable may also communicate indirectly with the server 1000 via a network such as the internet 500, either to fulfil an aspect of their own functionality, or on behalf of the delivery system (for example as a relay or co-processing unit). These devices may also communicate with each other, either directly or indirectly.
- the delivery ecosystem may comprise multiple delivery devices (10), for example because the user owns multiple devices (for example so as to easily switch between different active ingredients or flavourings), or because multiple users share the same delivery ecosystem, at least in part (for example cohabiting users may share a charging dock, but have their own phones or wearables).
- delivery devices may similarly communicate directly or indirectly with each other, and/or with devices within the shared delivery ecosystem and/or the server.
- an aerosol delivery device may comprise at least one proximity sensor 610 configured to detect a person without physical contact by the user with the sensor; and configured to output a detection signal when a person is detected.
- at least one proximity sensor 610 may be provided on a companion device, e.g. closely associated device within the delivery ecosystem, such as the charging hub, or indeed the user's phone or smartwatch or the like.
- an aerosol delivery system e.g. an aerosol delivery device optionally together with and operating in conjunction with one or more other devices within the delivery ecosystem, such as a phone or smartwatch
- a person who may or may not be the normal user of the device
- the user or indeed the detected person, if different.
- Example proximity sensors include but are not limited to capacitive sensors, active and/or passive audio sensors, and electromagnetic sensors, as described elsewhere herein.
- the aerosol delivery system also comprises an activity state processor configured to receive the detection signal, and to determine whether to change an operational state of the aerosol delivery device between a first activity state and a second activity state based at least in part on the received detection signal.
- activity state processor configured to receive the detection signal, and to determine whether to change an operational state of the aerosol delivery device between a first activity state and a second activity state based at least in part on the received detection signal.
- the activity state processor may for example be control unit 205 operating under suitable software instruction, or similarly a processor of a charging hub, phone, smartwatch or other device within the delivery ecosystem, or any combination thereof.
- the second activity state reflects desired levels of activity to exhibit when a person (typically assumed to be the user) is proximate to the device or system. Meanwhile the first activity state is for when they are not proximate.
- the first activity state when compared to the second activity state, has one or more of a lower power requirement, fewer active functions, a lower power setting for one or more functions, and an alternative function to one for the second activity state (e.g. typically a lower power alternative, and/or a less intrusive function, such as a quieter alert).
- a lower power requirement e.g. typically a lower power alternative, and/or a less intrusive function, such as a quieter alert.
- the first activity state may include one or more selected from the list consisting of display of a first set of information; display of a first level of detail of information; a lower duty cycle or lower power data transmission; a lower duty cycle or lower power pre-heating; a lower duty cycle or lower power lighting; and a lower duty cycle or lower power situational awareness, where 'lower' is lower than in the second state.
- second activity state may include one or more selected from the list consisting of display of a second set of information (being separate to or a superset of a first set of information); display of second higher level of detail of information; a higher duty cycle or higher power data transmission; a higher duty cycle or higher power heating; a higher duty cycle or higher power lighting; and a higher duty cycle or higher power situational awareness, where 'higher' is higher than in the first state.
- the first activity state can be characterised as one or more of a lower power state, a lower situational awareness state, a lower notification (e.g. to the user or companion devices) state, a lower wakefulness state, a lower Ul information state, a quieter state, a cooler state, and the like, compared to the second state.
- a lower situational awareness state may mean a slower duty cycle for an active proximity sensor, or less complex data analysis by the activity state processor, or receipt of less contextual data for data fusion activities, and the like.
- a lower situational awareness may limit awareness of other information, such as the wireless environment, or biometric updates from a smartwatch, or calendar or other contextual information, but maintain or even increase the sensitivity or duty cycle of at least one form of proximity detection. So whilst the first state is still expected to be of a lower overall complexity / have a lower overall power consumption, the proximity detection aspect may remain the same as in the second state or optionally (for at least one proximity sensor) be higher.
- first and second sets of information and levels of detail of information can relate to information relevant to the different states and the likely level of engagement of the user with the device at that time.
- the delivery device could appear to be off entirely, or may only display (or periodically report to a companion device) the state of its battery and payload (e.g. e-liquid level), for example without a backlight.
- the second state it could backlight the display, include other and more detailed information in the Ul such as the current payload flavour or strength, a current operation mode, and optionally pre-heat the heater to a pre-vaporisation temperature and indicate when this is achieved.
- an action such as pre-heating the heater (which uses a comparatively large amount of power) may only be performed as part of a third state where the user has begun to directly physically interact with the delivery device, optionally in a manner characteristic of imminent use.
- functions in the second state may include active sensing for indicators of the third state.
- the first state may be characterised as a dormant or standby state, the second state as an awake or ready state, and an optional third state as a ready or pre-use state.
- the functions differentiated by the first and second states may vary depending on both the specific delivery device and optionally also the particular proximity sensor(s) used to detect the proximity of a person, and/or the confidence with which the person is detected (or detected specifically as the user).
- this comprises a capacitive sensor, for example comprising a first sensor electrode and an insulating layer, creating a parasitic capacitance with the environment above the insulating layer and a proximity capacitance with a person acting as a conductor when they are within proximity of an electrical field of the capacitive sensor.
- a capacitive sensor for example comprising a first sensor electrode and an insulating layer, creating a parasitic capacitance with the environment above the insulating layer and a proximity capacitance with a person acting as a conductor when they are within proximity of an electrical field of the capacitive sensor.
- the aerosol delivery system to detect when a person is proximate to the device or system without touching it - for example when they place their hand on the outside of a pocket or bag containing the aerosol delivery device, or goes to pick it up from a table; an action which may be a precursor to using it.
- the aerosol delivery system or device could transition from the first state to the second state and, for example as described elsewhere herein, cause to activate a Ul and/or pre-heat a vaporisation heater of the delivery device to a readiness temperature, such as a temperature just below the vaporisation temperature of the payload, so that the device is more responsive when first used as there is a smaller increase in temperature required.
- a readiness temperature such as a temperature just below the vaporisation temperature of the payload
- the proximity sensor may comprise an audio sensor operable to detect audio that is characteristic of proximity to a person.
- Such an audio sensor may comprise one or more microphones, and these may be located on one or more devices within the delivery ecosystem.
- the audio sensor is passive, and may be operable to detect one or more characteristic biometric feature(s) of a nearby person such as typically the user, such as their heart rate or their breathing rate (for example if the delivery device is in a pocket), or indeed the type of their breathing (such as shallow, deep, irregular or the like).
- a characteristic biometric feature(s) of a nearby person such as typically the user, such as their heart rate or their breathing rate (for example if the delivery device is in a pocket), or indeed the type of their breathing (such as shallow, deep, irregular or the like).
- a high heart rate or breathing rate may be indicative of stress our arousal and imply an increased likeliness of imminent use of the delivery device.
- the passive audio sensor may be operable to detect the voice of the user, and optionally therein signs of stress or calm in the user's vocal patterns, and/or their vocabulary, or other indicators of a wish or intent to interact with the delivery device, such as certain predetermined keywords or phrases.
- Empirical associations between these characteristic biometric feature(s) and the likelihood of the user interacting with the delivery device shortly thereafter may be derived to determine whether the activity state processor should change operational state, for example based on the presence of one or more characteristic biometric feature(s) of the user, and what they currently indicate.
- the audio sensor is active; that is to say, it relies on predetermined emitted sound sources rather than ambient ones.
- the audio sensor may act more like a SONAR or acoustic tape measure. This may be achieved by the proximity sensor being operable to detect a delayed correlation between detected audio and an emitted audio, the delay being a function of the propagation time from the emitter to the audio sensor, typically via a reflection off a target object. The propagation time (together with the known speed of sound) thus indicates the distance to that target object.
- the audio may be emitted by the delivery device, or by a companion device such as the user's mobile phone.
- the same device comprises the emitter and audio sensor
- the detected delay corresponds to an outbound and return journey (to an unknown object) - however, where the estimated distance is characteristic of user behaviour (for example moving closer to the device), then the activity state processor can be arranged to change for example from first to second state.
- the detected delay corresponds to the direct path distance between them.
- the relative timings can be achieved for example by use of a Bluetooth ® or other wireless synchronisation signal, for example transmitted by the device emitting the audio.
- the activity state processor can be arranged to change state depending on the apparent distance. In the case where the distance is fairly short (in the order of 50-100 cm) but for a prolonged period, this can be assumed to be because the user is carrying both devices. In this case the activity state processor may change to or keep the delivery device in the first activity state, for example optionally until the distance changes more than a threshold amount indicating a change of state of the user.
- the proximity sensor may use a delayed correlation between emitted and detected sound to detect a characteristic event, such as whether the aerosol delivery device is being or is about to be removed from storage (e.g. from a bag, pocket, sleeve/pouch, or similar), or a characteristic distance from the user (in particular the user's face).
- a characteristic event such as whether the aerosol delivery device is being or is about to be removed from storage (e.g. from a bag, pocket, sleeve/pouch, or similar), or a characteristic distance from the user (in particular the user's face).
- data fusion between the proximity sensor and other sensor data such as an orientation of the delivery device obtained from an accelerometer or similar, may be used to infer this event with more confidence.
- the combination of a characteristic distance and orientation, or a preceding or current characteristic change in orientation may distinguish imminent use from storage in a swinging handbag, for example.
- the proximity sensor may use a delayed correlation between emitted and detected sound to provide other situational awareness, such as whether the delivery device appears to be indoors or outdoors, for example based on the number of path reflections and path times detected.
- data fusion may optionally be used to determine the significance of being indoors or outdoors; a user may for example exit their place of work for a regular break at a certain time; localisation via WiFi or GPS may not be able to detect when the user is still on site but outdoors, whereas the combination of a particular time and an acoustic indication of being outdoors may cause the activity state processor to switch to the second state.
- the audio sensor may comprise a plurality of microphones.
- these may be configured (e.g. in conjunction with the proximity sensor and/or activity state processor) to detect the direction of a relevant sound (whether ambient or emitted), for example based on differential timings of corresponding audio features between microphones.
- the direction relative to the microphones can provide useful information, for example enabling the device to determine its directional relationship with respect to the user's mouth if they speak, which can be indicative of imminent use and hence a reason for the activity state processor to change operational state as appropriate.
- such a microphone array can be used to estimate the attenuation distance of sounds (for example voiced sounds) and thus estimate the distance of the device from the user's mouth. Again distance can be indicative of imminent use and hence a reason for the activity state processor to change operational state as appropriate.
- sounds for example voiced sounds
- distance can be indicative of imminent use and hence a reason for the activity state processor to change operational state as appropriate.
- proximity sensors include for example an electromagnetic sensor (for example an infra-red or microwave sensor, whether active or passive in a similar sense to the acoustic sensor described elsewhere herein).
- an electromagnetic sensor for example an infra-red or microwave sensor, whether active or passive in a similar sense to the acoustic sensor described elsewhere herein.
- Such a sensor may detect the presence of a person (e.g. via infra-red emission by the person) and/or optionally detect one or more characteristic biometric feature(s) of the person.
- an infra-red or microwave sensor may for example be used to pick up a nearby heart beat.
- the activity state processor may be configured to receive the detection signal, and to determine whether to change an operational state of the aerosol delivery device between a first activity state and a second activity state, based only at least in part on the received detection signal, but optionally also on other data that provides further context to the apparent proximity of a person. Examples may include delivery device orientation from an accelerometer, time of day, location, ambient brightness levels, and the like.
- such a secondary data source may comprise second proximity data from at least a second sensor, which may be a similar proximity sensor to the first, for example located in a different position on the delivery device or other device of the delivery ecosystem, or may be a different one of the kinds described herein.
- the activity state processor may use the detection signal and a signal from the at least second sensor to estimate whether a detected person may be the user.
- the activity state processor may use more data sources and in particular (but not necessarily) a second proximity sensor to estimate whether a detected person may be the user.
- system may better differentiate between whether the proximate person is the user or not. For example, if the delivery device is on a table in a restaurant, then information regarding the direction of the user's voice may be used in conjunction with another proximity detection sensor to selectively discount or reduce the weighting of signals detected from other directions.
- proximity detection from capacitance detectors on each side of the delivery device could distinguish direction of approach, or for example ongoing proximity (such as in a pocket) versus transitory and hence potentially intentional proximity (such as reaching for the pocket).
- proximity detection from capacitance detectors on each side of the delivery device could distinguish direction of approach, or for example ongoing proximity (such as in a pocket) versus transitory and hence potentially intentional proximity (such as reaching for the pocket).
- Suitably combinations of sensors and placements can be envisaged for various use cases, which in turn may depend upon the size, shape, and weight of the device, and/or its target market (e.g. factors that may influence whether the device more likely to be pocketed, kept visible, or stored in a case/bag).
- the second (or indeed first) proximity sensor is a capacitance sensor
- it may also function as a detector of direct or imminent touch.
- the sensor occupies an area of the delivery device (for example as an array or a distribution of discrete sensors) it may also be configured to detect a current or imminent holding pattern of the person, either upon contact or as they approach.
- the area, shape, and/or size of the holding pattern may be characteristic of the user, or sufficiently so within a small potential group of people such as in the home.
- the area, shape, and/or size of the holding pattern may similarly serve to distinguish certain non-users, such as a child having smaller hands.
- the activity state processor may remain in the first state, or as appropriate override an indication to switch to the second state as indicated by another proximity sensor, or promptly switch back to the first state (for example if proximity was detected earlier, prompting a switch to the second state, but subsequently the person appears likely to be a child). If such a mechanism is provided, then for adults with small hands optionally such a feature could be disabled for example using settings accessible after a secure log in process.
- proximity detection (optionally in conjunction with data fusion other data sources) prompting the activity state processor to switch to the second state
- the same detection may also be used to maintain the second state if already in it.
- a lack of proximity detection optionally for a predetermined period of time, and optionally in conjunction with a lack of relevant data from other data sources, may cause the activity state processor to switch back to the first state.
- a third state is also used (for example in response to direct physical interaction with the delivery device), then if currently in the third state, proximity detection that would normally trigger the second state can be used to maintain the third state for a predetermined period of time, before switching to the second state.
- proximity detection for example if the user puts their device down (thereby normally ending the third state) but keeps their hand nearby, then the device may stay in the third state for a predetermined period, such as 5, 10, or 30 seconds, in recognition that the user is more likely to pick the device back up.
- the aerosol delivery system is configured to switch back from the second state to the first state at predetermined time after the detection of a person has elapsed, but also or instead (e.g.
- an aerosol delivery i.e. the anticipated use has occurred, and it is appropriate to re-set the cycle
- a user interface interaction has been completed (for example a relevant interaction such as an indication to sleep, for example achieved by patting the delivery device twice, or selecting a snooze option on a Ul of the delivery device or a companion device.
- a corresponding activity state determining method for an aerosol delivery system comprises the steps of: detecting s710 a person without physical contact using at least one proximity sensor; outputting s720 a detection signal (e.g. by one or more proximity sensors) when a person is detected; receiving s730 the detection signal (for example at an activity state processor) and determining s740 (for example using an activity state processor operating under suitable software instruction) whether to change an operational state of the aerosol delivery device between a first activity state and a second activity state based at least in part on the received detection signal.
- a conventional equivalent device may be implemented in the form of a computer program product comprising processor implementable instructions stored on a non-transitory machine-readable medium such as a floppy disk, optical disk, hard disk, solid state disk, PROM, RAM, flash memory or any combination of these or other storage media, or realised in hardware as an ASIC (application specific integrated circuit) or an FPGA (field programmable gate array) or other configurable circuit suitable to use in adapting the conventional equivalent device.
- a computer program may be transmitted via data signals on a network such as an Ethernet, a wireless network, the Internet, or any combination of these or other networks.
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Abstract
Description
Claims
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CONC2024/0000507A CO2024000507A2 (en) | 2021-07-29 | 2024-01-19 | Interactive aerosol delivery system |
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US20170181223A1 (en) * | 2015-12-18 | 2017-06-22 | R.J. Reynolds Tobacco Company | Proximity sensing for an aerosol delivery device |
US20180132528A1 (en) * | 2016-11-14 | 2018-05-17 | Rai Strategic Holdings, Inc. | Photoelectric proximity sensor for gesture-based control of an aerosol delivery device |
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US20200337382A1 (en) * | 2019-04-25 | 2020-10-29 | Rai Strategic Holdings, Inc. | Artificial intelligence in an aerosol delivery device |
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2021
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2022
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20190053540A1 (en) * | 2015-09-28 | 2019-02-21 | Nicoventures Holdings Limited | Electronic aerosol provision systems and methods |
US20170181223A1 (en) * | 2015-12-18 | 2017-06-22 | R.J. Reynolds Tobacco Company | Proximity sensing for an aerosol delivery device |
US20180132528A1 (en) * | 2016-11-14 | 2018-05-17 | Rai Strategic Holdings, Inc. | Photoelectric proximity sensor for gesture-based control of an aerosol delivery device |
US20200337382A1 (en) * | 2019-04-25 | 2020-10-29 | Rai Strategic Holdings, Inc. | Artificial intelligence in an aerosol delivery device |
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