Inhalation device, control method, and program

Abstract

An inhalation device includes: a heater configured to generate aerosol by heating a substrate containing an aerosol source; and a control circuit configured to control an operation a of the heater based on a heating profile defining a time-series transition of a target temperature. The control circuit is configured to: start control of the heater in a control mode defined by the heating profile in response to a generation request for the aerosol; acquire information indicating an inhalation mode in a first period in which the heater is controlled in the control mode defined by the heating profile; and change the control mode for the heater in a second period after the first period from the control mode defined by the heating profile to a control mode based on the inhalation mode in the first period.

1 . An inhalation device, comprising:
 a heater configured to generate aerosol by heating a substrate containing an aerosol source; and   a control circuit configured to control an operation of the heater based on a heating profile defining a time-series transition of a target temperature which is a target value of a temperature of the heater, wherein   the inhalation device allows a user to inhale the aerosol generated by the heater, and   the control circuit is configured to:
 start control of the heater in a control mode defined by the heating profile in response to a generation request for the aerosol; 
 acquire information indicating an inhalation mode in a first period in which the heater is controlled in the control mode defined by the heating profile; and 
 change the control mode for the heater in a second period after the first period from the control mode defined by the heating profile to a control mode based on the inhalation mode in the first period. 
   
     
     
         2 . The inhalation device according to  claim 1 , wherein
 the heating profile is information defining a time length and the target temperature of each time section included in a plurality of time sections consecutive along a time axis, and   the control mode based on the inhalation mode in the first period is a mode in which the time length of any time section among time sections included in the second period is changed according to the inhalation mode in the first period.   
     
     
         3 . The inhalation device according to  claim 2 , wherein
 the control mode based on the inhalation mode in the first period is a mode in which the time length of a time section immediately before stop of heating by the heater among the time sections included in the second period is changed according to the inhalation mode in the first period.   
     
     
         4 . The inhalation device according to  claim 2 , wherein
 the plurality of time sections include a first heating section provided first, a cooling section provided after the first heating section and in which the target temperature is lower than the target temperature of the first heating section, a second heating section provided after the cooling section and in which the target temperature is higher than the target temperature of the cooling section, and a low-temperature section in which the target temperature is lower than the target temperature of the second heating section, and   the control mode based on the inhalation mode in the first period is a mode in which the time length of the low-temperature section among the time sections included in the second period is changed according to the inhalation mode in the first period.   
     
     
         5 . The inhalation device according to  claim 2 , wherein
 the plurality of time sections include a temperature maintenance section in which the control circuit controls the temperature of the heater to maintain the temperature of the heater at a constant temperature, and   the control mode based on the inhalation mode in the first period is a mode in which the time length of the temperature maintenance section among the time sections included in the second period is changed according to the inhalation mode in the first period.   
     
     
         6 . The inhalation device according to  claim 1 , wherein
 the heating profile is information defining a time length and the target temperature of each time section included in a plurality of time sections consecutive along a time axis, and   the control mode based on the inhalation mode in the first period is a mode in which the target temperature in any time section included in the second period is changed according to the inhalation mode in the first period.   
     
     
         7 . The inhalation device according to  claim 1 , wherein
 the first period is a period from a time point when the control of the heater is started in the control mode defined by the heating profile or a time point when an inhalation-enabled period is started to a time point when a predetermined time elapses or a time point when inhalation is performed for a predetermined number of times.   
     
     
         8 . The inhalation device according to  claim 7 , wherein
 the first period is a period from the time point when the control of the heater is started in the control mode defined by the heating profile or the time point when the inhalation-enabled period is started to the time point when the predetermined time elapses, and   the predetermined time is shorter than half of a period from the time point when the control of the heater is started in the control mode defined by the heating profile or the time point when the inhalation-enabled period is started to a time point when the heating by the heater is stopped.   
     
     
         9 . The inhalation device according to  claim 1 , wherein
 the heating profile is one heating profile selected from a plurality of heating profiles prepared in advance,   the control circuit is configured to determine a type of the substrate, and   the one heating profile is a heating profile selected by the control circuit based on a determination result of the type of the substrate.   
     
     
         10 . The inhalation device according to  claim 1 , wherein
 the inhalation mode in the first period is one of or a combination of two or more of an inhalation time in the first period, an inhalation amount in the first period, or an inhalation intensity in the first period.   
     
     
         11 . The inhalation device according to  claim 10 , wherein
 the inhalation mode in the first period includes at least the inhalation amount in the first period, and   the inhalation amount in the first period is any one of a maximum value of a flow rate generated by one inhalation in the first period, an accumulated value of flow rates generated by a plurality of inhalations in the first period, or a maximum value of a flow rate per unit time in the first period.   
     
     
         12 . The inhalation device according to  claim 10 , wherein
 the inhalation mode in the first period includes at least the inhalation time in the first period, and   the inhalation time in the first period is a length of a period in which a flow rate generated by inhalation in the first period is equal to or larger than a threshold value, a maximum value of an inhalation time by one inhalation in the first period, or an accumulated value of inhalation times by a plurality of inhalations in the first period.   
     
     
         13 . The inhalation device according to  claim 10 , wherein
 the inhalation mode in the first period includes at least the inhalation intensity in the first period, and   the inhalation intensity in the first period is a maximum value of an inhalation intensity per unit time in the first period or an accumulated value of the inhalation intensity per unit time in the first period.   
     
     
         14 . A control method of executing, by a computer that controls an inhalation device including a heater configured to generate aerosol by heating a substrate containing an aerosol source and allowing a user to inhale the aerosol generated by the heater, a process comprising:
 starting control of the heater in a control mode defined by a heating profile defining a time-series transition of a target temperature which is a target value of a temperature of the heater in response to a generation request for the aerosol;   acquiring information indicating an inhalation mode in a first period in which the heater is controlled in the control mode defined by the heating profile; and   changing the control mode for the heater in a second period after the first period from the control mode defined by the heating profile to a control mode based on the inhalation mode in the first period.   
     
     
         15 . A non-transitory computer-readable storage medium that stores a program for causing a computer, which controls an inhalation device including a heater configured to generate aerosol by heating a substrate containing an aerosol source and allowing a user to inhale the aerosol generated by the heater, to execute a process comprising:
 starting control of the heater in a control mode defined by a heating profile defining a time-series transition of a target temperature which is a target value of a temperature of the heater in response to a generation request for the aerosol;   acquiring information indicating an inhalation mode in a first period in which the heater is controlled in the control mode defined by the heating profile; and   changing the control mode for the heater in a second period after the first period from the control mode defined by the heating profile to a control mode based on the inhalation mode in the first period.