Aerosol generation device, system, control method, and program

Abstract

Provided is a mechanism that can improve the quality of user experience. This aerosol generation device comprises: a generation unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generation unit; a power reception unit that receives power wirelessly transmitted from a power transmission device; and a control unit that controls processing for charging the battery with the power received by the power reception unit. The control unit determines whether or not a user has held the aerosol generation device, and stops charging the battery when it is determined that the user has held the aerosol generation device.

Description

Aerosol Generation Device, System, Control Method, and Program

[0001] The present disclosure relates to an aerosol generation device, a system, a control method, and a program.

[0002] Aerosol generation devices that generate aerosols inhaled by users are widely popular. For example, an aerosol generation device uses a base material including an aerosol source for generating an aerosol and a flavor source for imparting a flavor component to the generated aerosol, etc., to generate an aerosol to which a flavor component is imparted. A user can enjoy the flavor by inhaling the aerosol to which the flavor component is imparted, generated by the aerosol generation device. The operation of a user inhaling an aerosol is also referred to as a puff or a puff operation. Examples of devices classified as aerosol generation devices include those used in place of so-called cigarettes, such as heated tobacco and electronic cigarettes, and nebulizers used for medical purposes. Note that a heated tobacco is an aerosol generation device of a type that generates an aerosol by heating a base material containing an aerosol source. An electronic cigarette is an aerosol generation device of a type that generates an aerosol by atomizing an aerosol source in liquid form.

[0003] In recent years, wireless charging of aerosol generation devices has been considered. For example, Patent Document 1 below discloses a technique for switching between wireless charging execution / charging stop according to the operating state of a heater, etc.

[0004] Japanese Patent Publication No. 2023-535014

[0005] However, the techniques disclosed in Patent Document 1, etc. have not been around for long since their development, and there is still room for improvement from various viewpoints.

[0006] Therefore, the present disclosure has been made in view of the above problems, and an object of the present disclosure is to provide a mechanism capable of improving the quality of the user experience.

[0007] To solve the above problems, according to one aspect of this disclosure, an aerosol generating device is provided, comprising: a generating unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generating unit; a power receiving unit that receives power wirelessly transmitted from a power transmitting device; and a control unit that controls the process of charging the battery with the power received by the power receiving unit, wherein the control unit determines whether or not a user has the aerosol generating device, and stops charging the battery if it is determined that the user has the aerosol generating device.

[0008] The aerosol generating device further includes a communication unit that communicates with the power transmitting device, and the control unit may control the communication unit to transmit information requesting that the transmission of power to the aerosol generating device be stopped when it determines that the user has the aerosol generating device.

[0009] The aerosol generating device further comprises a communication unit that communicates with the power transmitting device, and the control unit may control the communication unit to transmit information requesting that the transmission of power to the aerosol generating device be started when the user determines that the aerosol generating device has been placed.

[0010] The aerosol generating device further comprises a communication unit that communicates with the power transmitting device, the control unit controls the communication unit to transmit information indicating the state of the battery, and the power receiving unit may receive power in a bandwidth allocated according to the state of the battery.

[0011] The control unit may operate the aerosol generator in one of a plurality of operating modes, including a first operating mode for automatically starting the charging of the battery and a second operating mode for manually starting the charging of the battery. When it is determined that the aerosol generator is located within range of receiving power from the power transmitter, the control unit may control different processes depending on whether the aerosol generator is operating in the first operating mode or the second operating mode.

[0012] The aerosol generating device further comprises a communication unit that communicates with the power transmitting device, and the control unit may control the communication unit to transmit a signal requesting the start of charging when it is determined that the aerosol generating device is located within a range in which it can receive power from the power transmitting device and the aerosol generating device is operating in the first operating mode.

[0013] The aerosol generating device further includes a notification unit for notifying the user of information, and the control unit may control the notification unit to notify predetermined information when it is determined that the aerosol generating device is located within a range where it can receive power from the power transmitting device and the aerosol generating device is operating in the second operating mode.

[0014] The aerosol generating device may further include a proximity sensor, and the control unit may determine whether or not the user has the aerosol generating device based on the detection result from the proximity sensor.

[0015] The aerosol generating device may further include an inertial sensor, and the control unit may determine whether or not the user has the aerosol generating device based on the detection result from the inertial sensor.

[0016] The power receiving unit may receive power transmitted using microwaves or infrared light.

[0017] Furthermore, in order to solve the above problems, according to another aspect of this disclosure, a system is provided comprising an aerosol generating device and a power transmitting device, wherein the aerosol generating device has a generating unit that generates an aerosol using an aerosol source, a rechargeable battery that supplies power to the generating unit, and a power receiving unit that receives power wirelessly transmitted from the power transmitting device, the power transmitting device wirelessly transmits power, the aerosol generating device charges the battery with the power received by the power receiving unit, and the aerosol generating device determines whether or not a user has the aerosol generating device, and if it is determined that the user has the aerosol generating device, the system stops charging the battery.

[0018] The aerosol generator may, when it determines that the user has the aerosol generator, transmit information requesting that the power transmission to the aerosol generator be stopped, and the power transmission device may, based on the received information, stop transmitting power to the aerosol generator. The aerosol generator may, when it determines that the user has put the aerosol generator down, transmit information requesting that the power transmission to the aerosol generator be started, and the power transmission device may, based on the received information, resume transmitting power to the aerosol generator.

[0019] Furthermore, in order to solve the above problems, according to another aspect of this disclosure, a control method is provided which is performed by a computer that controls an aerosol generating device, wherein the aerosol generating device comprises a generating unit that generates an aerosol using an aerosol source, a rechargeable battery that supplies power to the generating unit, and a power receiving unit that receives power wirelessly transmitted from a power transmitting device, and the control method includes controlling a process of charging the battery with the power received by the power receiving unit, and the control of the process of charging the battery includes determining whether a user has the aerosol generating device, and stopping the charging of the battery if it is determined that the user has the aerosol generating device.

[0020] Furthermore, in order to solve the above problems, according to another aspect of this disclosure, a program is provided which is executed by a computer that controls an aerosol generating device, wherein the aerosol generating device comprises a generating unit that generates an aerosol using an aerosol source, a rechargeable battery that supplies power to the generating unit, and a power receiving unit that receives power wirelessly transmitted from a power transmitting device, and the program causes the computer to function as a control unit that controls the process of charging the battery with the power received by the power receiving unit, and the control unit determines whether or not the user has the aerosol generating device, and if it is determined that the user has the aerosol generating device, the program stops charging the battery.

[0021] As explained above, this disclosure provides a mechanism that can improve the quality of the user experience.

[0022] This is a schematic diagram illustrating an example of the configuration of an aerosol generating device. This is a block diagram showing an example of the configuration of the charging system 1 according to this embodiment. This is a diagram illustrating the dynamic change of bandwidth allocation to multiple aerosol generating devices 100. This is a sequence diagram showing an example of the processing flow performed by the charging system 1 according to this embodiment.

[0023] Preferred embodiments of this disclosure will be described in detail below with reference to the attached drawings. In this specification and the drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant descriptions will be omitted.

[0024] <1. Example of Aerosol Generating Device Configuration> Figure 1 is a schematic diagram illustrating an example of the configuration of an aerosol generating device. As shown in Figure 1, the aerosol generating device 100 according to this example configuration includes a power supply unit 111, a sensor unit 112, a notification unit 113, a storage unit 114, a communication unit 115, a control unit 116, a heating unit 121, a storage unit 140, and a heat insulating unit 144.

[0025] The power supply unit 111 stores power. Based on the control by the control unit 116, the power supply unit 111 supplies power to each component of the aerosol generator 100. The power supply unit 111 may be composed of a rechargeable battery, such as a lithium-ion secondary battery.

[0026] The sensor unit 112 acquires various information related to the aerosol generator 100. For example, the sensor unit 112 is composed of a pressure sensor such as a condenser microphone, a flow sensor, or a temperature sensor, and acquires values ​​associated with the user's inhalation. As another example, the sensor unit 112 is composed of an input device such as a button or switch that accepts information input from the user.

[0027] The notification unit 113 notifies the user of information. The notification unit 113 is composed of, for example, a light-emitting device that emits light, a display device that displays an image, a sound output device that emits sound, or a vibration device that vibrates.

[0028] The memory unit 114 stores various information for the operation of the aerosol generator 100. The memory unit 114 is composed of a non-volatile storage medium such as flash memory.

[0029] The communication unit 115 is a communication interface capable of performing communication in accordance with any wired or wireless communication standard. Examples of such communication standards include those using Wi-Fi®, Bluetooth®, BLE (Bluetooth Low Energy®), NFC (Near Field Communication), or LPWA (Low Power Wide Area).

[0030] The control unit 116 functions as both an arithmetic processing unit and a control device, controlling the overall operation of the aerosol generator 100 according to various programs. The control unit 116 is implemented by electronic circuits such as a CPU (Central Processing Unit) or a microprocessor.

[0031] The housing section 140 has an internal space 141 and holds the stick-type substrate 150 while housing a portion of the stick-type substrate 150 in the internal space 141. The housing section 140 has an opening 142 that communicates the internal space 141 with the outside and houses the stick-type substrate 150 inserted into the internal space 141 from the opening 142. For example, the housing section 140 is a cylindrical body with the opening 142 and bottom 143 as its base, defining a columnar internal space 141. An air passage is connected to the housing section 140 to supply air to the internal space 141. An air inlet, which is the air entrance to the air passage, is located, for example, on the side of the aerosol generating device 100. An air outlet, which is the air exit from the air passage to the internal space 141, is located, for example, on the bottom 143.

[0032] The stick-type base material 150 includes a base material portion 151 and a mouthpiece portion 152. The base material portion 151 includes an aerosol source. The aerosol source includes flavoring components derived from tobacco or non-tobacco. If the aerosol generating device 100 is a medical inhaler such as a nebulizer, the aerosol source may also include a drug. The aerosol source may be a liquid such as glycerin and polyhydric alcohols such as propylene glycol, and water, which include flavoring components derived from tobacco or non-tobacco, or it may be a solid which includes flavoring components derived from tobacco or non-tobacco. When the stick-type base material 150 is held in the housing portion 140, at least a part of the base material portion 151 is housed in the internal space 141, and at least a part of the mouthpiece portion 152 protrudes from the opening 142. When the user puts the mouthpiece portion 152 protruding from the opening 142 in their mouth and inhales, air flows into the internal space 141 via an air passage (not shown) and reaches the user's mouth together with the aerosol generated from the base material portion 151.

[0033] The heating unit 121 generates an aerosol by heating the aerosol source, thereby atomizing it. In the example shown in Figure 1, the heating unit 121 is configured in a film-like form and is positioned to cover the outer circumference of the containment unit 140. When the heating unit 121 generates heat, the base material portion 151 of the stick-type base material 150 is heated from the outer circumference, generating an aerosol. The heating unit 121 generates heat when power is supplied from the power supply unit 111. For example, power may be supplied when the sensor unit 112 detects that the user has started inhaling and / or that predetermined information has been input. Power may be stopped when the sensor unit 112 detects that the user has finished inhaling and / or that predetermined information has been input.

[0034] The heat insulating section 144 prevents heat transfer from the heating section 121 to other components. For example, the heat insulating section 144 is made of a vacuum insulating material or an aerogel insulating material.

[0035] The above describes an example configuration of the aerosol generator 100. Of course, the configuration of the aerosol generator 100 is not limited to the above, and it can take various configurations as exemplified below.

[0036] As an example, the heating section 121 may be configured in a blade shape and positioned to protrude from the bottom 143 of the housing section 140 into the internal space 141. In this case, the blade-shaped heating section 121 is inserted into the base material portion 151 of the stick-shaped base material 150 and heats the base material portion 151 of the stick-shaped base material 150 from the inside. As another example, the heating section 121 may be positioned to cover the bottom 143 of the housing section 140. Furthermore, the heating section 121 may be configured as a combination of two or more of the following: a first heating section that covers the outer circumference of the housing section 140, a blade-shaped second heating section, and a third heating section that covers the bottom 143 of the housing section 140.

[0037] As another example, the housing section 140 may include an opening and closing mechanism, such as a hinge, that opens and closes a part of the outer shell forming the internal space 141. The housing section 140 may then house the stick-shaped base material 150 inserted into the internal space 141 while clamping it by opening and closing the outer shell. In this case, the heating section 121 may be provided at the clamping location in the housing section 140 and may heat the stick-shaped base material 150 while pressing it.

[0038] Furthermore, the means for atomizing the aerosol source is not limited to heating by the heating unit 121. For example, the means for atomizing the aerosol source may be induction heating. In that case, the aerosol generator 100 has at least an electromagnetic induction source, such as a coil that generates a magnetic field, instead of the heating unit 121. The susceptor that generates heat by induction heating may be provided in the aerosol generator 100 or may be included in the stick-type substrate 150.

[0039] The heating unit 121 is an example of a generation unit that generates aerosols using an aerosol source.

[0040] The aerosol generating device 100 may have a shutter that opens and closes the storage section 140, or more specifically, the opening 142 of the storage section 140. When the shutter is open, the opening 142 is exposed to the outside, and the stick-type substrate 150 can be inserted into and removed from the storage section 140. When the shutter is closed, the opening 142 is concealed from the outside, and the stick-type substrate 150 cannot be inserted into or removed from the storage section 140.

[0041] The control unit 116 controls the operation of the heating unit 121 based on a heating profile. The heating profile is control information for controlling the temperature for heating the aerosol source. The heating profile defines target values of parameters corresponding to the temperature for heating the aerosol source. For example, the heating profile may define the time-series transition of the target value of the temperature or resistance of the heating unit 121. This is because the resistance of the heating unit 121 changes according to the temperature of the heating unit 121 (more precisely, the heating resistor that constitutes the heating unit 121). The control unit 116 controls the temperature of the heating unit 121 by controlling the operation of the heating unit 121 so that the temperature or resistance of the heating unit 121 changes as defined in the heating profile.

[0042] Hereinafter, the period during which power supply to the heating unit 121 is controlled based on the heating profile, or in other words, the period during which heating by the heating unit 121 is performed based on the heating profile, is also referred to as a heating session.

[0043] <2. Configuration Example of Charging System> FIG. 2 is a block diagram showing an example of the configuration of the charging system 1 according to the present embodiment. The charging system 1 is a system that charges a receiver using spatial transmission type wireless power transmission, that is, WPT (Wireless Power Transfer).

[0044] As shown in FIG. 2, the charging system 1 includes a plurality of aerosol generation devices 100 and a power transmission device 200. The aerosol generation device 100 is a so-called receiver that receives wirelessly transmitted power. The power transmission device 200 is a so-called transmitter that wirelessly transmits power.

[0045] [[ID=??]]As shown in FIG. 2, in addition to the configuration described above while referring to FIG. 1, the aerosol generation device 100 includes a power reception unit 101.

[0046] It seems there is a small issue in the provided text. In the line starting with , the reference to "図1を参照しながら上記説明した構成に加え" is a bit unclear as there is no prior detailed description related to "図1" in the provided text. I've translated it as best as possible based on the context. If there is more context available for that part, it can be further refined.The power receiving unit 101 receives the power wirelessly transmitted from the power transmitting device 200. The wireless transmission and reception of power may be realized by a radiation-type WPT (Beam WPT) that transmits power using electromagnetic waves, such as a radio wave method or a laser method. For example, the power receiving unit 101 receives the power transmitted using microwaves or infrared light. Then, the power receiving unit 101 outputs the received power to the power supply unit 111.

[0047] As shown in FIG. 2, the power supply unit 111 includes a charging circuit 102 and a battery 103.

[0048] The charging circuit 102 is a circuit that controls the charging of the battery 103. The charging circuit 102 charges the battery 103 using the power input from the power receiving unit 101. The charging circuit 102 monitors various information about the battery 103, such as the state of charge (SOC), state of health (SOH), internal resistance, and temperature, while charging the battery 103.

[0049] The battery 103 is a rechargeable battery. The battery 103 is charged by the power input from the charging circuit 102. The battery 103 supplies power to various components inside the aerosol generating device 100, such as the heating unit 121.

[0050] The sensor unit 112, memory unit 114, notification unit 113, communication unit 115, and control unit 116 execute various processes related to wireless charging. That is, the sensor unit 112 detects various information related to the wireless charging of the aerosol generating device 100. The notification unit 113 notifies the user of various information related to the wireless charging of the aerosol generating device 100. The memory unit 114 stores various information related to the wireless charging of the aerosol generating device 100. The communication unit 115 communicates with the power transmitting device 200 to transmit and receive various information related to the wireless charging of the aerosol generating device 100. The control unit 116 controls various processes related to the wireless charging of the aerosol generating device 100.

[0051] (2) Power Transmitting Device 200 As shown in FIG. 2, the power transmitting device 200 includes a power transmitting unit 201, a communication unit 202, a memory unit 203, and a control unit 204.

[0052] The power transmission unit 201 wirelessly transmits power. Wireless transmission and reception of power may be realized by a radiating WPT (Beam WPT) that transmits power using electromagnetic waves, such as radio waves or lasers. For example, the power transmission unit 201 transmits power using microwaves or infrared light. The power transmission unit 201 has an antenna (for example, an array antenna) that can dynamically change the direction of power transmission.

[0053] The communication unit 202 is a communication interface capable of performing communication in accordance with any wired or wireless communication standard. Examples of such communication standards include Wi-Fi®, Bluetooth®, BLE (Bluetooth Low Energy®), NFC (Near Field Communication), or LPWA (Low Power Wide Area). The communication unit 202 may also use the power transmission antenna used by the power transmission unit 201 for transmitting and receiving information. A dedicated protocol may be used as the communication standard for transmitting and receiving data. The communication unit 202 communicates with the aerosol generator 100 to transmit and receive various information related to the wireless charging of the aerosol generator 100.

[0054] The memory unit 203 stores various information for the operation of the power transmission device 200. The memory unit 203 is composed of a non-volatile storage medium such as flash memory. The memory unit 203 stores various information related to the wireless charging of the aerosol generator 100.

[0055] The control unit 204 functions as an arithmetic processing unit and control unit, and controls the overall operation of the power transmission device 200 according to various programs. The control unit 204 is implemented by electronic circuits such as a CPU (Central Processing Unit) or a microprocessor. The control unit 204 controls various processes related to the wireless charging of the aerosol generator 100.

[0056] <3. Operation of Charging System 1> (Basic Operation) When the power transmitter 200 discovers an aerosol generator 100 located within range of receiving power from the power transmitter 200, it conducts negotiations (e.g., handshake) via wireless communication. The discovery of the aerosol generator 100 by the power transmitter 200 can be achieved via wireless signals. For example, the aerosol generator 100 may periodically transmit a beacon signal (e.g., a BLE signal) via the communication unit 115 as a signal to notify the power transmitter 200 of the presence of the aerosol generator 100. The power transmitter 200 can then determine whether the aerosol generator 100 that is the source of the beacon signal is located within range of receiving power, based on the received signal strength of the beacon signal in the communication unit 202 (e.g., RSSI (Received Signal Strength Indicator)).

[0057] The power transmitter 200 and the aerosol generator 100 then negotiate via wireless communication, and begin transmitting and receiving power when an agreement is reached. Specifically, as a result of negotiations via wireless communication, when the aerosol generator 100 authorizes power reception and the power transmitter 200 authorizes power transmission, power transmission from the power transmitter 200 to the aerosol generator 100 begins. Both the aerosol generator 100 and the power transmitter 200 can send and receive signals during negotiations to request the start of power transmission / reception.

[0058] The power transmitter 200 allocates bandwidth to all aerosol generators 100 that have been enabled to receive power. Bandwidth allocation may be performed, for example, using a time-division multiplexing method. That is, the power transmitter 200 may allocate different transmission times to each aerosol generator 100. The power transmitter 200 may then dynamically change the orientation of its antenna during the transmission time allocated to each aerosol generator 100 and transmit power to each aerosol generator 100. The switching of transmission times can be performed at high speed, such as less than one second.

[0059] Furthermore, the power transmitter 200 may determine the location of the aerosol generator 100 based on the direction of arrival and reception strength of the beacon signal, and may change the orientation of the antenna based on the determined location of the aerosol generator 100. In addition, the beacon signal may also contain information indicating the location of the aerosol generator 100.

[0060] The power transmitter 200 may allocate transmission time equally to all aerosol generators 100 that have enabled power reception. In this case, it becomes possible to transmit power equally to all aerosol generators 100 that have enabled power reception.

[0061] The power transmitter 200 may allocate transmission time unevenly to all aerosol generators 100 that have been enabled to receive power.

[0062] As an example, the power transmitter 200 may allocate transmission time based on the reception strength of the beacon signal from the aerosol generator 100. Specifically, the power transmitter 200 may preferentially allocate more transmission time to the aerosol generator 100 that is the source of the beacon signal with high reception strength. In that case, the aerosol generator 100 receives power in the bandwidth allocated according to the reception strength of the beacon signal at the power transmitter 200. It is considered that the reception strength of the power transmitted from the power transmitter 200 is higher for the aerosol generator 100 that is the source of the beacon with high reception strength. In this respect, such a configuration makes it possible to improve the overall charging efficiency of the charging system 1.

[0063] As another example, the aerosol generator 100 may transmit information indicating the state of the battery 103 (e.g., SOC). The power transmitter 200 may then allocate transmission time based on the state of the battery 103 of the aerosol generator 100. Specifically, the power transmitter 200 may preferentially allocate more transmission time to aerosol generators 100 with low remaining power. In this case, the aerosol generator 100 receives power within the bandwidth allocated according to the state of the battery 103. With this configuration, it becomes possible to charge aerosol generators 100 with low remaining power with priority.

[0064] Furthermore, bandwidth allocation information may be shared between the power transmitter 200 and the aerosol generator 100. The allocation information may include a combination of identification information for the aerosol generator 100 and information indicating the transmission time allocated to the aerosol generator 100.

[0065] (Power transmission and reception based on whether or not it is in use) The aerosol generator 100 performs a process of charging the battery 103 with power received by the power receiving unit 101. In particular, the aerosol generator 100 determines whether or not a user is holding the aerosol generator 100. If the aerosol generator 100 determines that a user is holding the aerosol generator 100, it performs a process to stop charging the battery 103. When a user picks up the aerosol generator 100, the power receiving sensitivity (i.e., antenna sensitivity) of the power receiving unit 101 decreases due to interference from the human body. With this configuration, charging of the aerosol generator 100 is stopped when the power receiving sensitivity is reduced, so it is possible to suppress inconveniences such as the user feeling uncomfortable because charging does not progress while holding the aerosol generator 100.

[0066] There are various possible methods for determining whether or not a user is holding the aerosol generator 100 in their hand.

[0067] For example, the sensor unit 112 may have a proximity sensor. The proximity sensor may detect changes in capacitance due to the proximity of a human body, or it may detect the heat of a nearby human body using infrared radiation or the like. The aerosol generator 100 may then determine whether or not the user is holding the aerosol generator 100 based on the detection results from the proximity sensor. For example, the aerosol generator 100 may determine that the user is holding the aerosol generator 100 if an object approaches within a predetermined distance from the proximity sensor, and determine that the user is not holding the aerosol generator 100 otherwise.

[0068] As another example, the sensor unit 112 may have an inertial sensor. The inertial sensor detects acceleration and / or angular velocity. The aerosol generator 100 may then determine whether or not the user is holding the aerosol generator 100 based on the detection results from the inertial sensor. For example, the aerosol generator 100 may determine that the user is holding the aerosol generator 100 if the acceleration or angular velocity exceeds a predetermined threshold, and determine that the user is not holding the aerosol generator 100 otherwise.

[0069] The power transmitter 200 stops transmitting power to the aerosol generator 100 that it determines is being held by the user. In other words, the power transmitter 200 transmits power only to the aerosol generator 100 that is not being held by the user. With this configuration, the power transmitter 200 can exclude aerosol generators 100 that are in a state where their power reception sensitivity is reduced from being transmitted. Considering that there is an upper limit to the electrical energy that the power transmitter 200 can transmit, it is possible to increase the overall charging efficiency of the charging system 1. In addition, since the radiation of energy to the user holding the aerosol generator 100 is suppressed, it is possible to enhance user safety.

[0070] The aerosol generator 100 may transmit information requesting that the power transmission to the aerosol generator 100 be stopped when it determines that a user is holding the aerosol generator 100. When the power transmission device 200 receives such information, it stops transmitting power to the aerosol generator 100, which is the source of the information. With this configuration, it is possible to stop the power transmission to the aerosol generator 100 when a user is holding it in their hand.

[0071] The aerosol generator 100 determines whether the user has placed the aerosol generator 100 down. For example, if the aerosol generator 100 determines that the user has the aerosol generator 100, and then determines that the user does not have the aerosol generator 100, it determines that the user has placed the aerosol generator 100 down. When the aerosol generator 100 determines that the user has placed the aerosol generator 100 down, it transmits information requesting that the transmission of power to the aerosol generator 100 be started (i.e., restarted). When the power transmission device 200 receives this information, it starts (i.e., restarts) the transmission of power to the aerosol generator 100, which is the source of the information. With this configuration, it is possible to restart the transmission of power to the aerosol generator 100 after it has left the user's possession.

[0072] The above describes the process during charging, but the same process may be performed when charging begins. That is, the aerosol generator 100 may initiate charging only if it determines that the user does not have the aerosol generator 100, by negotiating with the power transmitter 200 via wireless communication. On the other hand, the aerosol generator 100 may refuse to initiate charging if it determines that the user does have the aerosol generator 100.

[0073] Specific examples of the processes related to starting, pausing, and resuming charging will be explained with reference to Figure 3.

[0074] Figure 3 illustrates the dynamic change in bandwidth allocation to multiple aerosol generators 100. Assume that aerosol generators 100A to 100C are located within range of receiving power from the power transmitter 200. In this case, as shown in the upper part of Figure 3, the power transmitter 200 allocates transmission time equally to each of the aerosol generators 100A to 100C and transmits power during the allocated transmission time. If the proximity sensor detects the proximity of an object, or if the inertial sensor detects movement, and it is determined that the user has picked up aerosol generator 100B, the power transmitter 200 stops transmitting power to aerosol generator 100B. As a result, as shown in the lower part of Figure 3, the power transmitter 200 allocates transmission time equally to each of the aerosol generators 100A and 100C and transmits power during the allocated transmission time. Subsequently, if it is determined that aerosol generator 100B has been placed, the bandwidth allocation returns to the state shown in the upper part of Figure 3.

[0075] The above explains specific examples.

[0076] The aerosol generator 100 may switch between allowing and not allowing charging depending on the determination result of whether the aerosol generator 100 is in use or not. Specifically, the aerosol generator 100 may deny charging if it is determined that the aerosol generator 100 is in use, and allow charging if it is determined that the aerosol generator 100 is not in use.

[0077] The above-mentioned determination of whether or not the user possesses the aerosol generator 100 is an example of determining whether or not the aerosol generator 100 is in use. That is, if the aerosol generator 100 determines that the user possesses the aerosol generator 100, it determines that the aerosol generator 100 is in use and denies charging. On the other hand, if the aerosol generator 100 determines that the user does not possess the aerosol generator 100, it determines that the aerosol generator 100 is not in use and permits charging.

[0078] There are various criteria for determining whether the aerosol generator 100 is in use, in addition to whether or not the user has the aerosol generator 100. For example, the start of use of the aerosol generator 100 can be determined based on the start of heating, the insertion of the stick-type substrate 150 into the containment section 140, the temperature of the heating section 121 rising, or the opening of the shutter. Heating may be started manually by pressing a button, or it may be started automatically triggered by the insertion of the stick-type substrate 150 into the containment section 140. The end of use of the aerosol generator 100 can be determined based on the end of heating, the removal of the stick-type substrate 150 from the containment section 140, the temperature of the heating section 121 returning to room temperature, or the closing of the shutter.

[0079] The determination of when the aerosol generator 100 has finished using may also be performed by the power transmission device 200. For example, the power transmission device 200 may consider the use of the aerosol generator 100 to have finished if a predetermined time has elapsed since the start of use of the aerosol generator 100 (i.e., when charging has stopped), and may resume power transmission to the aerosol generator 100.

[0080] Here, the predetermined time may be set according to the basis for determining when to start using the aerosol generator 100. For example, if the start of use of the aerosol generator 100 is determined based on the start of heating by the heating unit 121, the predetermined time may be set according to the length of the heating session. For example, if the length of the heating session is 3 minutes, the power transmission device 200 may determine that the use of the aerosol generator 100 has ended 3 minutes after the aerosol generator 100 starts heating and resume power transmission to the aerosol generator 100. Considering that the length of the heating session may vary depending on the heating profile, the predetermined time may be set based on the heating profile used.

[0081] (Instruction to end use) If the aerosol generator 100 determines that it is located within range of receiving power from the power transmitter 200, it may notify the user of information instructing them to end use of the aerosol generator 100.

[0082] As an example, the aerosol generator 100 allows charging of the battery 103 only if the user does not have the aerosol generator 100, as described above. In this regard, if the aerosol generator 100 determines that it is located within range of receiving power from the power transmitter 200, it may notify the user of information instructing them to place the aerosol generator 100 and keep it stationary.

[0083] As another example, the aerosol generator 100 may allow charging of the battery 103 only when the shutter is closed, as described above. In this regard, the aerosol generator 100 may notify the user of information instructing it to close the shutter when it is determined that the aerosol generator 100 is located within range of receiving power from the power transmitter 200.

[0084] As another example, the aerosol generator 100 may allow charging of the battery 103 only when the stick-type substrate 150 is not inserted into the housing 140, as described above. In this regard, the aerosol generator 100 may notify the user of information instructing them to remove the stick-type substrate 150 from the housing 140 when it is determined that the aerosol generator 100 is located within range of receiving power from the power transmitter 200. It is desirable that this notification be given on the condition that the heating of the stick-type substrate 150 already inserted into the housing 140 is completed. This is to prevent a situation in which the removal of the stick-type substrate 150 is instructed before or during heating.

[0085] If the user places the aerosol generator 100, closes the shutter, or removes the stick-type substrate 150 in accordance with these instructions, charging may begin. As a result, charging can be started more quickly.

[0086] (Operating Modes) The aerosol generator 100 can operate in one of several operating modes, including a first operating mode in which charging of the battery 103 is started automatically, and a second operating mode in which charging of the battery 103 is started manually. When it is determined that the aerosol generator 100 is located within range of receiving power from the power transmitter 200, the aerosol generator 100 performs different processing depending on whether it is operating in the first operating mode or the second operating mode. The operating mode can be selected by the user. With this configuration, it is possible to select between automatic or manual charging start, thereby improving usability.

[0087] Specifically, when the aerosol generator 100 determines that it is located within range of receiving power from the power transmitter 200 and is operating in the first operating mode, it transmits a signal requesting that charging begin. For example, the aerosol generator 100 initiates negotiations with the power transmitter 200 via wireless communication, causing the power transmitter 200 to begin transmitting power to the aerosol generator 100. In this case, the signals transmitted and received during the negotiations are an example of a signal requesting that charging begin. With this configuration, the aerosol generator 100 can automatically begin charging when it enters range of receiving power from the power transmitter 200. This improves usability.

[0088] On the other hand, if the aerosol generator 100 determines that it is located within range of receiving power from the power transmitter 200 and is operating in the second operating mode, it notifies the user of predetermined information. An example of predetermined information is a user operation to authorize charging. An example of a user operation to authorize charging is pressing a button or shaking the aerosol generator 100 a predetermined number of times. When these user operations are performed, the aerosol generator 100 initiates negotiations with the power transmitter 200 via wireless communication and causes the power transmitter 200 to start transmitting power to the aerosol generator 100. With this configuration, when the aerosol generator 100 enters the range of receiving power from the power transmitter 200, it can prompt the user to start charging manually. Therefore, it is possible to suppress the loss of charging opportunities and improve usability.

[0089] (Processing Flow) Figure 4 is a sequence diagram showing an example of the processing flow performed by the charging system 1 according to this embodiment. The aerosol generator 100A and the power transmitter 200 are involved in this sequence. The power transmitter 200 is assumed to be charging the aerosol generators 100B and 100C while the processing related to this sequence is being performed.

[0090] As shown in Figure 4, first, the aerosol generator 100A repeatedly transmits a beacon signal (step S102).

[0091] When the power transmitter 200 successfully receives a beacon signal and determines that the aerosol generator 100A is located within range of receiving power, it negotiates with the aerosol generator 100A via wireless communication to initiate charging (step S104). The aerosol generator 100A may automatically initiate negotiations when operating in the first operating mode. On the other hand, when the aerosol generator 100A is operating in the second operating mode, it may negotiate if a user operation to permit charging is performed, and refuse negotiations otherwise.

[0092] Once negotiations are successful and both the aerosol generator 100A and the power transmitter 200 are authorized to charge, the power transmitter 200 changes the bandwidth allocation (step S106). For example, the power transmitter 200 allocates transmission time equally to each of the aerosol generators 100A to 100C.

[0093] Next, the power transmission device 200 starts transmitting power to the aerosol generator 100A (step S108).

[0094] The power transmitter 200 transmits power to the aerosol generator 100A during the transmission time allocated to the aerosol generator 100A (step S110), and the aerosol generator 100A charges the battery 103 with the received power (step S112).

[0095] Next, when the aerosol generator 100A detects that the user has taken possession of the aerosol generator 100A, etc., and that the aerosol generator 100A has started to be used (step S114), it sends a charging stop request to the power transmission device 200 (step S116). The charging stop request is an example of information requesting that the transmission of power to the aerosol generator 100A be stopped.

[0096] When the power transmission device 200 receives a request to stop charging from the aerosol generator 100A, it stops transmitting power to the aerosol generator 100A (step S118).

[0097] Next, the power transmitter 200 changes the bandwidth allocation (step S120). For example, the power transmitter 200 allocates the transmission time equally to each of the aerosol generators 100B and 100C. Then, the power transmitter 200 stops transmitting power to the aerosol generator 100A while continuing to transmit power to the aerosol generators 100B and 100C.

[0098] Next, when the aerosol generator 100A detects that the user has finished using the aerosol generator 100A (step S122), it sends a charging restart request to the power transmission device 200 (step S124). The charging restart request is an example of information requesting that the transmission of power to the aerosol generator 100A be started.

[0099] When the power transmitter 200 receives a request to resume charging from the aerosol generator 100A, it changes the bandwidth allocation (step S126). For example, the power transmitter 200 allocates transmission time equally to each of the aerosol generators 100A to 100C.

[0100] Next, the power transmission device 200 starts transmitting power to the aerosol generator 100A (step S128).

[0101] The power transmitter 200 transmits power to the aerosol generator 100A during the transmission time allocated to the aerosol generator 100A (step S130), and the aerosol generator 100A charges the battery 103 with the received power (step S132).

[0102] <4. Supplementary Information> Although preferred embodiments of the present disclosure have been described in detail above with reference to the attached drawings, the present disclosure is not limited to such examples. It is clear that a person with ordinary skill in the art to which the present disclosure belongs may conceive of various modifications or alterations within the scope of the technical ideas described in the claims, and these will naturally be understood to fall within the technical scope of the present disclosure.

[0103] In the above embodiment, the condition for initiating the transmission of power to the aerosol generator 100 was determined to be when the user has placed the aerosol generator 100, but other conditions may be used in combination. That is, charging of the aerosol generator 100 may be permitted when it is determined that the user has placed the aerosol generator 100 and predetermined conditions are met. The predetermined conditions may include that the aerosol generator 100 is not being heated. The predetermined conditions may include that charging of the aerosol generator 100 is not prohibited. The predetermined conditions may include that the aerosol generator 100 is not in a fully charged state. The predetermined conditions may include that a malfunction of the aerosol generator 100 has not been detected.

[0104] In the above embodiment, an example was described in which the charging system 1 has a plurality of aerosol generators 100, but the present disclosure is not limited to such an example. The charging system 1 may have a plurality of receivers, and at least one of the plurality of receivers may be an aerosol generator 100. The receivers may be other devices such as smartphones or tablet terminals. Receivers other than the aerosol generator 100 may have the configuration for wireless charging of the aerosol generator 100 as described above with reference to Figure 2.

[0105] In the above embodiment, an example was described in which the charging of the battery 103 is stopped by stopping the transmission of power from the power transmitting device 200 to the aerosol generating device 100, but this disclosure is not limited to such an example. The charging of the battery 103 may also be stopped by stopping the power supply to the battery 103 by the charging circuit 102. Alternatively, the charging of the battery 103 may be stopped by stopping the reception of power by the power receiving unit 101.

[0106] In the above embodiment, an example was described in which the allocation of bandwidth to the multiple aerosol generators 100 by the power transmitter 200 is carried out using a time-division method, but this disclosure is not limited to such an example. The allocation of bandwidth to the multiple aerosol generators 100 may be carried out using a frequency division method, a spatial division method, or the like. According to the frequency division method, power is transmitted to the multiple aerosol generators 100 using electromagnetic waves of different frequencies. According to the spatial division method, power is transmitted to the multiple aerosol generators 100 using transmission paths (e.g., beams) formed in different directions.

[0107] The criteria for determining whether or not the user is holding the aerosol generator 100 may be switched depending on the state of the aerosol generator 100. For example, when the shutter is open, the criteria for determining whether or not the user is holding the aerosol generator 100 may be set low, that is, it may be easier to determine that the user is holding it. On the other hand, when the shutter is closed, the criteria for determining whether or not the user is holding the aerosol generator 100 may be set high, that is, it may be harder to determine that the user is holding it. With this configuration, when the shutter is open, and it is assumed that there is a high probability that the user is holding the aerosol generator 100 in order to insert the stick-type substrate 150, the system will determine that the user is holding the aerosol generator 100 when slight proximity or slight movement of the object is detected, and charging will be temporarily suspended. On the other hand, when the shutter is closed, and it may simply be stored inside the case, charging can continue until proximity or significant movement of the object is detected. In this way, the likelihood of charging being temporarily paused is adjusted according to the likelihood of the user holding the aerosol generator 100, making it possible to suppress the loss of charging opportunities and improve the overall charging efficiency of the charging system 1. Similarly, the criteria for determining whether or not the user is holding the aerosol generator 100 may be switched depending on whether or not the stick-type substrate 150 is inserted into the storage section 140, or the heating state by the heating section 121.

[0108] In the above embodiment, an example was described in which the aerosol generator 100 is configured as a heated tobacco product, but this disclosure is not limited to such an example. The aerosol generator 100 may be configured as an e-cigarette. That is, the technology of this disclosure can also be applied to e-cigarettes.

[0109] The series of processes performed by each device described herein may be implemented using software, hardware, or a combination of software and hardware. The programs constituting the software are pre-stored in a recording medium (more specifically, a non-temporary storage medium readable by a computer) provided inside or outside each device. Each program is then loaded into RAM (Random Access Memory) when executed by a computer controlling each device described herein, and executed by a processing circuit such as a CPU (Central Processing Unit). The recording medium is, for example, a magnetic disk, an optical disk, a magneto-optical disk, or flash memory. The computer program may also be distributed via a network, for example, without using a recording medium. The computer may be an application-specific integrated circuit (ASIC), a general-purpose processor that performs functions by loading software programs, or a computer on a server used for cloud computing. The series of processes performed by each device described herein may be centrally processed by a single computer or distributed among multiple computers. A method for executing the series of processes performed by each device described herein, which is performed by a computer, may also be provided. Furthermore, in each of the above embodiments, two or more communication means present in a single device may be physically implemented in a single medium.

[0110] Furthermore, the processes described herein using flowcharts or sequence diagrams do not necessarily have to be executed in the order shown. Some processing steps may be executed in parallel. Additional processing steps may be adopted, and some processing steps may be omitted.

[0111] The following configurations also fall within the technical scope of this disclosure: (1) An aerosol generating device comprising: a generating unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generating unit; a power receiving unit that receives power wirelessly transmitted from a power transmitting device; and a control unit that controls the process of charging the battery with the power received by the power receiving unit, wherein the control unit determines whether a user has the aerosol generating device, and stops charging the battery when it determines that the user has the aerosol generating device. (2) The aerosol generating device according to (1), further comprising a communication unit that communicates with the power transmitting device, wherein the control unit controls the communication unit to transmit information requesting that the transmission of power to the aerosol generating device be stopped when it determines that the user has the aerosol generating device. (3) The aerosol generating device further comprises a communication unit that communicates with the power transmitting device, and the control unit controls the communication unit to transmit information requesting the start of power transmission to the aerosol generating device when the user determines that the aerosol generating device has been placed. The aerosol generating device according to (1) or (2). (4) The aerosol generating device according to any one of (1) to (3), further comprises a communication unit that communicates with the power transmitting device, and the control unit controls the communication unit to transmit information indicating the state of the battery, and the power receiving unit receives power in a bandwidth allocated according to the state of the battery. (5) The aerosol generator according to any one of (1) to (4) above, wherein the control unit operates the aerosol generator in one of a plurality of operating modes, including a first operating mode for automatically starting the charging of the battery and a second operating mode for manually starting the charging of the battery, and when it is determined that the aerosol generator is located within a range in which it can receive power from the power transmitter, it controls different processes depending on whether the aerosol generator is operating in the first operating mode or the second operating mode.(6) The aerosol generator according to (5), wherein the aerosol generator further comprises a communication unit for communicating with the power transmitter, and the control unit controls the communication unit to transmit a signal requesting the start of charging when it is determined that the aerosol generator is located within a range in which it can receive power from the power transmitter and the aerosol generator is operating in the first operating mode. (7) The aerosol generator according to (5) or (6), wherein the aerosol generator further comprises a notification unit for notifying the user of information, and the control unit controls the notification unit to notify predetermined information when it is determined that the aerosol generator is located within a range in which it can receive power from the power transmitter and the aerosol generator is operating in the second operating mode. (8) The aerosol generator according to any one of (1) to (7), wherein the aerosol generator further comprises a proximity sensor, and the control unit determines whether the user has the aerosol generator based on the detection result from the proximity sensor. (9) The aerosol generating device according to any one of (1) to (8), wherein the aerosol generating device further comprises an inertial sensor, and the control unit determines whether or not the user has the aerosol generating device based on the detection result from the inertial sensor. (10) The aerosol generating device according to any one of (1) to (9), wherein the power receiving unit receives power transmitted using microwaves or infrared light. (11) A system comprising an aerosol generating device and a power transmitting device, wherein the aerosol generating device comprises: a generating unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generating unit; and a power receiving unit that receives power wirelessly transmitted from the power transmitting device, wherein the power transmitting device wirelessly transmits power, the aerosol generating device charges the battery with the power received by the power receiving unit, and the aerosol generating device determines whether or not the user has the aerosol generating device, and stops charging the battery when it is determined that the user has the aerosol generating device.(12) The system as described in (11), wherein the aerosol generator transmits information requesting that the transmission of power to the aerosol generator be stopped when the user determines that the aerosol generator is in possession of the aerosol generator, the power transmission device stops transmitting power to the aerosol generator based on the received information, and the aerosol generator transmits information requesting that the transmission of power to the aerosol generator be started when the user determines that the aerosol generator has been placed down, and the power transmission device resumes transmitting power to the aerosol generator based on the received information. (13) A control method performed by a computer controlling an aerosol generating device, wherein the aerosol generating device comprises: a generating unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generating unit; and a power receiving unit that receives power wirelessly transmitted from a power transmitting device, and the control method includes controlling a process of charging the battery with the power received by the power receiving unit, and the control of the process of charging the battery includes determining whether a user has the aerosol generating device, and stopping the charging of the battery if it is determined that the user has the aerosol generating device. (14) A program executed by a computer controlling an aerosol generating device, wherein the aerosol generating device comprises: a generating unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generating unit; and a power receiving unit that receives power wirelessly transmitted from a power transmitting device, the program causing the computer to function as a control unit that controls the process of charging the battery with the power received by the power receiving unit, and the control unit determines whether a user has the aerosol generating device, and if it determines that the user has the aerosol generating device, the program stops charging the battery.

[0112] 1 Charging system 100 Aerosol generator 101 Power receiving unit 102 Charging circuit 103 Battery 111 Power supply unit 112 Sensor unit 113 Notification unit 114 Memory unit 115 Communication unit 116 Control unit 121 Heating unit 140 Housing unit 141 Internal space 142 Opening 143 Bottom unit 144 Heat insulation unit 150 Stick-type substrate 151 Substrate unit 152 Suction nozzle unit 200 Power transmitting device 201 Power transmitting unit 202 Communication unit 203 Memory unit 204 Control unit

Claims

1. An aerosol generating device comprising: a generating unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generating unit; a power receiving unit that receives power wirelessly transmitted from a power transmitting device; and a control unit that controls the process of charging the battery with the power received by the power receiving unit, wherein the control unit determines whether or not a user has the aerosol generating device, and stops charging the battery if it determines that the user has the aerosol generating device.

2. The aerosol generating apparatus according to claim 1, further comprising a communication unit that communicates with the power transmitting device, wherein the control unit controls the communication unit to transmit information requesting that the transmission of power to the aerosol generating apparatus be stopped when the user determines that the aerosol generating apparatus is in possession of the aerosol generating apparatus.

3. The aerosol generating apparatus according to claim 1 or 2, further comprising a communication unit that communicates with the power transmitting device, wherein the control unit controls the communication unit to transmit information requesting the start of power transmission to the aerosol generating apparatus when the user determines that the aerosol generating apparatus has been placed.

4. The aerosol generating apparatus according to any one of claims 1 to 3, further comprising a communication unit that communicates with the power transmitting device, the control unit controls the communication unit to transmit information indicating the state of the battery, and the power receiving unit receives power in a bandwidth allocated according to the state of the battery.

5. The control unit operates the aerosol generator in one of a plurality of operating modes, including a first operating mode for automatically starting the charging of the battery and a second operating mode for manually starting the charging of the battery, and when it is determined that the aerosol generator is located within a range in which it can receive power from the power transmission device, it controls different processes depending on whether the aerosol generator is operating in the first operating mode or the second operating mode, according to any one of claims 1 to 4.

6. The aerosol generating apparatus according to claim 5, further comprising a communication unit for communicating with the power transmitting device, wherein the control unit controls the communication unit to transmit a signal requesting the start of charging when it is determined that the aerosol generating apparatus is located within a range in which it can receive power from the power transmitting device and the aerosol generating apparatus is operating in the first operating mode.

7. The aerosol generating apparatus according to claim 5 or 6, further comprising a notification unit for notifying the user of information, wherein the control unit controls the notification unit to notify predetermined information when it is determined that the aerosol generating apparatus is located within a range in which it can receive power from the power transmitting device and the aerosol generating apparatus is operating in the second operating mode.

8. The aerosol generating apparatus according to any one of claims 1 to 7, wherein the aerosol generating apparatus further comprises a proximity sensor, and the control unit determines whether or not the user has the aerosol generating apparatus based on the detection result from the proximity sensor.

9. The aerosol generating apparatus according to any one of claims 1 to 8, further comprising an inertial sensor, wherein the control unit determines whether or not the user has the aerosol generating apparatus based on the detection result from the inertial sensor.

10. The aerosol generating apparatus according to any one of claims 1 to 9, wherein the power receiving unit receives power transmitted using microwaves or infrared light.

11. A system comprising an aerosol generating device and a power transmitting device, wherein the aerosol generating device comprises: a generating unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generating unit; and a power receiving unit that receives power wirelessly transmitted from the power transmitting device, wherein the power transmitting device wirelessly transmits power, the aerosol generating device charges the battery with the power received by the power receiving unit, and the aerosol generating device determines whether a user has the aerosol generating device, and stops charging the battery if it determines that the user has the aerosol generating device.

12. The system according to claim 11, wherein the aerosol generator transmits information requesting that the transmission of power to the aerosol generator be stopped when the user determines that the aerosol generator is in possession of the aerosol generator, the power transmission device stops transmitting power to the aerosol generator based on the received information, and the aerosol generator transmits information requesting that the transmission of power to the aerosol generator be started when the user determines that the aerosol generator has been placed down, and the power transmission device resumes transmitting power to the aerosol generator based on the received information.

13. A control method performed by a computer controlling an aerosol generating device, wherein the aerosol generating device comprises: a generating unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generating unit; and a power receiving unit that receives power wirelessly transmitted from a power transmitting device, and the control method includes controlling a process of charging the battery with the power received by the power receiving unit, and the control of the process of charging the battery includes determining whether a user has the aerosol generating device, and stopping the charging of the battery if it is determined that the user has the aerosol generating device.

14. A program executed by a computer controlling an aerosol generating device, wherein the aerosol generating device comprises: a generating unit that generates an aerosol using an aerosol source; a rechargeable battery that supplies power to the generating unit; and a power receiving unit that receives power wirelessly transmitted from a power transmitting device, the program causing the computer to function as a control unit that controls the process of charging the battery with the power received by the power receiving unit, the control unit determines whether or not a user has the aerosol generating device, and if it determines that the user has the aerosol generating device, the program stops charging the battery.

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