CN117794411A - Suction device, base material, and control method - Google Patents
Suction device, base material, and control method Download PDFInfo
- Publication number
- CN117794411A CN117794411A CN202180101342.0A CN202180101342A CN117794411A CN 117794411 A CN117794411 A CN 117794411A CN 202180101342 A CN202180101342 A CN 202180101342A CN 117794411 A CN117794411 A CN 117794411A
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- unit
- heating
- power supply
- period
- temperature
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- 238000000034 method Methods 0.000 title claims abstract description 73
- 239000000463 material Substances 0.000 title description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 395
- 238000012937 correction Methods 0.000 claims abstract description 216
- 239000000443 aerosol Substances 0.000 claims abstract description 64
- 230000008569 process Effects 0.000 claims abstract description 44
- 238000005259 measurement Methods 0.000 claims abstract description 39
- 230000007704 transition Effects 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 230000008859 change Effects 0.000 claims description 32
- 238000012545 processing Methods 0.000 claims description 23
- 230000007423 decrease Effects 0.000 description 22
- 239000000796 flavoring agent Substances 0.000 description 13
- 235000019634 flavors Nutrition 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 238000005086 pumping Methods 0.000 description 10
- 238000005070 sampling Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 7
- 230000004044 response Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 4
- 238000003303 reheating Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 235000019640 taste Nutrition 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003571 electronic cigarette Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006199 nebulizer Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- A24F40/57—Temperature control
-
- 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
- A24F40/20—Devices using solid inhalable precursors
-
- 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
- A24F40/46—Shape or structure of electric heating means
-
- 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
- A24F40/53—Monitoring, e.g. fault detection
Abstract
Provided is a structure capable of further improving the quality of user experience relating to an attraction device. The suction device is provided with: a power supply unit (111) for supplying electric power; a heating unit (121) for heating a substrate containing an aerosol source by using electric power supplied from the power supply unit (111); a measurement unit (172) for measuring a measurement value corresponding to the temperature of the heating unit (121); an operation unit (171) that operates using electric power supplied from the power supply unit (111), unlike the heating unit (121); and a control unit (116) that controls the operation of the heating unit (121) on the basis of a heating setting that defines a time-series transition of a target temperature, which is a target value of the temperature of the heating unit (121), so that the temperature of the heating unit (121) corresponding to the measured value transitions similarly to the target temperature, wherein the control unit (116) executes a correction process for correcting the measured value on the basis of the start of power supply from the power supply unit (111) to the operation unit (171).
Description
Technical Field
The invention relates to a suction device, a base material and a control method.
Background
Suction devices such as electronic cigarettes and nebulizers that generate substances for user suction (aspiration) are becoming popular. For example, the suction device generates an aerosol to which a flavor component is added using a base material including an aerosol source for generating an aerosol, a flavor source for adding a flavor component to the generated aerosol, and the like. The user can taste the flavor by sucking the aerosol to which the flavor component is added generated by the sucking device. Hereinafter, the action of sucking the aerosol by the user is also referred to as a sucking or pumping action.
In the suction device, various devices may be mounted in addition to a heating unit for heating the aerosol source. For example, patent document 1 discloses a technique in which a vibration motor is mounted in a suction device, and information is notified to a user by vibration.
Prior art literature
Patent literature
Patent document 1: japanese patent application laid-open No. 2020-516262
Disclosure of Invention
Problems to be solved by the invention
In a small-sized device such as a suction device, various problems may occur when a plurality of devices are operated at the same time. However, in the above-mentioned patent document 1, the above-mentioned adverse conditions are not studied at all.
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a structure capable of further improving the quality of user experience relating to an attraction device.
Means for solving the problems
In order to solve the above-described problems, according to one aspect of the present invention, there is provided a suction device including: a power supply unit for supplying electric power; a heating unit configured to heat a substrate containing an aerosol source by using electric power supplied from the power supply unit; a measurement unit configured to measure a measurement value corresponding to a temperature of the heating unit; an operation unit that operates using the electric power supplied from the power supply unit, unlike the heating unit; and a control unit that controls an operation of the heating unit based on a heating setting in which a time-series transition of a target temperature is specified, so that a temperature of the heating unit corresponding to the measured value transitions similarly to the target temperature, the target temperature being a target value of the temperature of the heating unit, and the control unit performs a correction process for correcting the measured value based on a start of power supply from the power supply unit to the operation unit.
The correction process may include: setting a correction target period based on the start of power supply from the power supply unit to the operation unit; and correcting the measured value when the measured value measured by the measuring unit is included in the correction target range during the correction target period.
The control unit may set the correction target range based on the measured value measured in the previous time or the target temperature corresponding to the elapsed time from the start of heating.
The correction process may include any of the following: the measured value to be corrected is corrected to the measured value measured before the measured value to be corrected, corrected by linear interpolation, and corrected by moving average.
The heating setting may include a plurality of periods in which the target temperature is set, and the control unit may select a method of correcting the measured value of the correction target in the correction process based on the period in the heating setting corresponding to the elapsed time from the start of heating.
The control unit may correct the measured value to be corrected to the measured value measured before the measured value to be corrected in the period in which the target temperature does not change.
The control unit may correct the measured value of the correction target by linear interpolation or moving average during the period in which the target temperature changes.
The control unit may prohibit heating by the heating unit when the number of times the measured value measured by the measuring unit is included in the correction target range during the correction target reaches a 1 st predetermined number of times.
When the number of times that the measured value measured by the measuring unit is included in the error determination range in a period other than the correction target period reaches the 2 nd predetermined number of times, the control unit may prohibit heating by the heating unit, and the 1 st predetermined number of times is greater than the 2 nd predetermined number of times.
The correction target range may include a range equal to or greater than a 1 st threshold and a range smaller than a 2 nd threshold, the error determination range may include a range equal to or greater than a 3 rd threshold and a range smaller than a 4 th threshold, the 3 rd threshold may be lower than the 1 st threshold, and the 4 th threshold may be higher than the 2 nd threshold.
The correction target period may be a period from when power supply to the operation unit is started to when the measured value is measured for a predetermined number of samples.
The correction target period may be a period from when the power supply to the operation unit is started to when the power supply to the operation unit is stopped.
The control unit may perform the correction processing based on the aerosol generated by heating the aerosol source being sucked.
The control unit may perform the correction processing based on the amount of change in the amount of power supplied from the power supply unit to the heating unit exceeding a predetermined threshold.
The correction process may include: setting a correction target period based on the amount of change in the amount of power supplied from the power supply unit to the heating unit exceeding a predetermined threshold; and correcting the measured value when the measured value measured by the measuring unit is included in the correction target range during the correction target period.
When the 1 st correction target period and the 2 nd correction target period are repeated, the control unit may connect the 1 st correction target period and the 2 nd correction target period, wherein the 1 st correction target period is the correction target period set based on the start of the power supply from the power supply unit to the operation unit, and the 2 nd correction target period is the correction target range set based on the change amount of the power supply amount from the power supply unit to the heating unit exceeding a predetermined threshold.
The control unit may perform the correction processing based on the operation content of the operation unit executed by the power supply to the operation unit.
The operation portion may be a vibration element or a light emitting element.
In order to solve the above-described problems, according to another aspect of the present invention, there is provided a substrate which is heated by a suction device and contains an aerosol source, the suction device including: a power supply unit for supplying electric power; a heating unit configured to heat a substrate containing an aerosol source by using electric power supplied from the power supply unit; a measurement unit configured to measure a measurement value corresponding to a temperature of the heating unit; an operation unit that operates using the electric power supplied from the power supply unit, unlike the heating unit; and a control unit that controls an operation of the heating unit based on a heating setting in which a time-series transition of a target temperature is specified, so that a temperature of the heating unit corresponding to the measured value transitions similarly to the target temperature, the target temperature being a target value of the temperature of the heating unit, and the control unit performs a correction process for correcting the measured value based on a start of power supply from the power supply unit to the operation unit.
In order to solve the above-described problems, according to another aspect of the present invention, there is provided a control method for controlling a suction apparatus, the suction apparatus including: a power supply unit for supplying electric power; a heating unit configured to heat a substrate containing an aerosol source by using electric power supplied from the power supply unit; a measurement unit configured to measure a measurement value corresponding to a temperature of the heating unit; and an operation unit that operates using the electric power supplied from the power supply unit, unlike the heating unit, the control method including: performing a correction process for correcting the measured value based on the start of the power supply from the power supply unit to the operation unit; and performing an operation of the heating unit based on a heating setting in which a time-series transition of a target temperature is specified, such that the temperature of the heating unit corresponding to the measured value transitions similarly to the target temperature, the target temperature being a target value of the temperature of the heating unit.
Effects of the invention
As described above, according to the present invention, a structure is provided that can further improve the quality of user experience with respect to the attraction device.
Drawings
Fig. 1 is a schematic diagram schematically showing an exemplary configuration of the suction device.
Fig. 2 is a block diagram showing a circuit configuration of a part of the suction device according to embodiment 1.
Fig. 3 is a graph showing an ideal transition of the resistance value of the heating portion in the case of performing control based on the heating profile shown in table 1.
Fig. 4 is a graph showing an example of actual transition of the resistance value of the heating portion.
Fig. 5 is a diagram in which the vicinity of the timing of supplying power to the vibration element 171 in the diagram shown in fig. 4 is enlarged.
Fig. 6 is a diagram in which the vicinity of the timing of supplying power to the vibration element 171 in the diagram shown in fig. 4 is enlarged.
Fig. 7 is a flowchart showing an example of the flow of processing executed by the suction apparatus according to this embodiment.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present specification and drawings, the same reference numerals are given to components having substantially the same functional constitution, and overlapping description is omitted.
Configuration example of suction device >)
The suction device generates a substance for the user to suck. Hereinafter, the substance generated by the suction device will be described as an aerosol. The substance generated by the suction device may be a gas.
Fig. 1 is a schematic diagram schematically showing an exemplary configuration of the suction device. As shown in fig. 1, the suction apparatus 100 according to this embodiment includes: the power supply unit 111, the sensor unit 112, the notification unit 113, the storage unit 114, the communication unit 115, the control unit 116, the heating unit 121, the holding unit 140, and the heat insulation unit 144.
The power supply unit 111 stores electric power. The power supply unit 111 supplies electric power to each component of the suction device 100 based on the control of the control unit 116. The power supply unit 111 may be constituted by a rechargeable battery such as a lithium ion secondary battery.
The sensor unit 112 acquires various information about the suction device 100. As an example, the sensor unit 112 is configured by a pressure sensor such as an electrostatic microphone, a flow sensor, a temperature sensor, or the like, and acquires a value associated with the user's suction. As another example, the sensor unit 112A is constituted by an input device such as a button or a switch that receives information input from a user.
The notification unit 113 notifies the user of information. The notification unit 113 is constituted by, for example, a light emitting device that emits light, a display device that displays an image, a sound output device that outputs sound, a vibrating device that vibrates, or the like.
The storage unit 114 stores various information for the operation of the suction device 100. The storage unit 114 is constituted by a nonvolatile storage medium such as a flash memory, for example.
The communication unit 115 is a communication interface capable of communication according to any communication standard of wired or wireless. As the communication standard, wi-Fi (registered trademark) or Bluetooth (registered trademark) can be used, for example.
The control unit 116 functions as an arithmetic processing device and a control device, and controls all operations in the suction device 100 according to various programs. The control unit 116A is implemented by an electronic circuit such as a CPU (Central Processing Unit ) or a microprocessor.
The holding portion 140 has an internal space 141, and the internal space 141 accommodates a part of the bar-type base material 150 and holds the bar-type base material 150. The holding portion 140 has an opening 142 for communicating the internal space 141 with the outside, and holds the rod-shaped base material 150 inserted into the internal space 141 from the opening 142. For example, the holding portion 140 is a cylindrical body having the opening 142 and the bottom 143 as bottom surfaces, and defines a columnar internal space 141. The holding portion 140 also has a function of dividing a flow path of air supplied to the rod-shaped base material 150. An air inlet hole, which is an inlet of air to the flow path, is disposed in the bottom 143, for example. On the other hand, the air outflow hole, which is the outlet of the air from the flow path, is an opening 142.
The rod-shaped base material 150 includes a base material portion 151 and a suction port portion 152. The substrate portion 151 includes an aerosol source. The aerosol source is, for example, a polyol such as glycerin and propylene glycol, or a liquid such as water. The aerosol source may comprise tobacco-derived or non-tobacco-derived flavour components. In the case where the inhalation device 100 is a medical inhaler such as a nebulizer, the aerosol source may include a drug. In this configuration example, the aerosol source is not limited to a liquid, and may be a solid. In a state where the rod-shaped base material 150 is held by the holding portion 140, at least a part of the base material portion 151 is accommodated in the internal space 141, and at least a part of the suction portion 152 protrudes from the opening 142. When the user bites the suction portion 152 protruding from the opening 142 and sucks the air, the air flows from the air inflow hole, not shown, into the internal space 141, and reaches the user's mouth together with the aerosol generated from the base material portion 151.
The heating unit 121 generates an aerosol by heating the aerosol source to atomize the aerosol source. In the example shown in fig. 1, the heating portion 121 is formed in a sheet shape and is disposed so as to cover the outer periphery of the holding portion 140. When the heating unit 121 generates heat, the substrate portion 151 of the rod-shaped substrate 150 is heated from the outer periphery, and aerosol is generated. When power is supplied from the power supply unit 111, the heating unit 121 generates heat. As an example, when the sensor unit 112 detects that the user starts to attract and/or inputs predetermined information, power may be supplied. When the sensor unit 112 detects that the user has completed the suction and/or has inputted predetermined information, the power supply may be stopped.
The heat insulating portion 144 prevents heat transfer from the heating portion 121B to other components. For example, the heat insulating portion 144 is made of a vacuum heat insulating material, an aerosol heat insulating material, or the like.
The configuration example of the suction device 100 is described above. Of course, the configuration of the suction device 100 is not limited to the above, and various configurations can be adopted as exemplified below.
As an example, the heating portion 121 may be formed in a blade shape and arranged to protrude from the bottom 143 of the holding portion 140 into the internal space 141. In this case, the blade-shaped heating portion 121 is inserted into the base material portion 151 of the bar-shaped base material 150, and the base material portion 151 of the bar-shaped base material 150 is heated from the inside. As another example, the heating portion 121 may be disposed so as to cover the bottom portion 143 of the holding portion 140. The heating unit 121 may be configured as a combination of two or more of a first heating unit covering the outer periphery of the holding unit 140, a second heating unit in the form of a blade, and a third heating unit covering the bottom 143 of the holding unit 140.
As another example, the holding portion 140 may include an opening and closing mechanism such as a hinge that opens and closes a part of the housing that forms the internal space 141. The holding portion 140 may hold the rod-shaped base material 150 inserted into the internal space 141 by opening and closing the case. In this case, the heating unit 121 may be provided at the nip position in the holding unit 140, and may perform heating while pressing the bar-shaped base material 150.
The means for atomizing the aerosol source is not limited to heating by the heating unit 121. For example, the means of atomizing the aerosol source may also be induction heating.
The inhalation device 100 cooperates with the wand substrate 150 to generate an aerosol for inhalation by a user. Therefore, the combination of the suction device 100 and the rod-like base material 150 can be grasped as an aerosol-generating system.
< 2. 1 st embodiment >
(1) Circuit arrangement
Fig. 2 is a block diagram showing a partial circuit configuration of the suction apparatus 100 according to the present embodiment. As shown in fig. 2, the suction device 100 of the present embodiment further includes a vibration element 171 and a measurement unit 172.
The vibration element 171 is a device that vibrates. The vibration element 171 may be, for example, an eccentric motor. The vibration element 171 vibrates when supplied with power. The vibration element 171 is an example of an operation unit different from the heating unit 121, and operates using electric power supplied from the power supply unit 111. The vibration element 171 is included in the notification unit 113 and vibrates for notifying various information to the user.
The measurement unit 172 measures a physical quantity corresponding to the temperature of the heating unit 121. Hereinafter, the physical quantity measured by the measuring unit 172 is also referred to as a measured value. The measurement unit 172 outputs the measured value to the control unit 116. An example of the measured value is the resistance value of the heating unit 121. The resistance value of the heating portion 121 (more specifically, the heat generating resistor constituting the heating portion 121) varies according to the temperature of the heat generating resistor. The resistance value of the heating resistor can be estimated by measuring a voltage drop in the heating resistor, for example. The voltage drop in the heating resistor is obtained by measuring the potential difference applied to the heating resistor. That is, the measurement unit 172 may measure the voltage drop in the heating unit 121, and may measure the resistance value of the heating unit 121 based on the measured voltage drop.
The power supply unit 111 supplies power to the vibration element 171 and the heating unit 121. The power supply unit 111 also includes a circuit for switching the power supply destination. Based ON the control of the control section 116, the ON/OFF (ON/OFF) of the power supply from the power supply section 111 to the vibration element 171 and the ON/OFF of the power supply from the power supply section 111 to the heating section 121 are switched.
The control unit 116 controls the power supply of the power supply unit 111. Specifically, the control unit 116 transmits a control signal for controlling the power supply destination and the power supply amount (for example, the duty ratio of a power pulse described later) of the power supply unit 111 to the power supply unit 111. As an example, the control unit 116 controls the power supply to the heating unit 121 based on the measurement value detected by the measurement unit 172. The heating unit 121 heats the rod-shaped base material 150 (i.e., the aerosol source) by using electric power supplied from the power supply unit 111, and generates an aerosol.
(2) Heating profile
The control unit 116 controls the operation of the heating unit 121 based on the heating setting. Control of the operation of the heating unit 121 is achieved by controlling the power supply from the power supply unit 111 to the heating unit 121. The heating setting is information defining time-series transition of the target temperature, which is the target value of the temperature of the heating unit 121. Hereinafter, the heating setting will also be referred to as a heating profile.
The control unit 116 controls the operation of the heating unit 121 so that the temperature of the heating unit 121 (hereinafter, also referred to as the actual temperature) corresponding to the measured value measured by the measuring unit 172 changes in the same manner as the target temperature specified in the heating profile. The heating profile is typically designed to optimize the flavor that the user tastes when the user attracts aerosols generated from the rod substrate 150. Therefore, by controlling the operation of the heating unit 121 based on the heating profile, the flavor tasted by the user can be optimized.
The heating profile includes a combination of one or more of a target temperature and information indicating a timing at which the target temperature should be reached. Further, the control unit 116 switches the target temperature and controls the operation of the heating unit 121 according to the lapse of time after starting the heating based on the heating profile. Specifically, the control unit 116 controls the operation of the heating unit 121 based on the deviation of the current actual temperature from the target temperature corresponding to the elapsed time after the start of the heating based on the heating profile. The operation control of the heating unit 121 can be realized by, for example, a known feedback control. The feedback control may be, for example, a PID control (Proportional-Integral-Differential Controller). The control unit 116 can supply the electric power from the power supply unit 111 to the heating unit 121 in the form of pulses based on Pulse Width Modulation (PWM) or Pulse Frequency Modulation (PFM). In this case, the control unit 116 can control the operation of the heating unit 121 by modulating the duty ratio or frequency of the power pulse in the feedback control. Alternatively, the control unit 116 may perform simple on/off control in feedback control. For example, the control unit 116 performs heating by the heating unit 121 until the actual temperature reaches the target temperature. Further, the control unit 116 may stop the heating by the heating unit 121 when the actual temperature reaches the target temperature, and perform the heating by the heating unit 121 again when the actual temperature is lower than the target temperature.
The period from the start to the end of the process of generating an aerosol using the rod-shaped substrate 150 is hereinafter also referred to as a heating session. In other words, the heating session is a period during which power supply to the heating section 121 is controlled based on the heating profile. The start period of the heating session is the timing at which heating based on the heating profile is started. The expiration period of the heating session is the timing at which a sufficient amount of aerosol is not generated. The heating session includes a preliminary heating period of the first half and a suction period of the second half. The period of suction is a period in which a sufficient amount of aerosol is supposed to be generated. The preliminary heating period is a period from the start of heating to the start of the suction enabling period. The heating performed during the preliminary heating period is also referred to as preliminary heating.
The heating profile may also include a plurality of periods in which the target temperatures are set, respectively. The target temperature set in a certain period may be reached at any timing in the period, or the end period of the period may be reached. In any case, the actual temperature of the heating unit 121 can be shifted similarly to the shift of the target temperature defined in the heating profile.
Table 1 below shows one example of a heating profile.
TABLE 1
TABLE 1 one example of a heating profile
With reference to fig. 3, an ideal transition of the resistance value of the heating unit 121 in the case where the control unit 116 controls the heating profile shown in table 1 will be described. Fig. 3 is a graph showing an ideal transition of the resistance value of the heating unit 121 in the case of performing control based on the heating profile shown in table 1. The horizontal axis of the graph is time (seconds). The vertical axis of the graph indicates the resistance value of the heating portion 121. As shown in fig. 3, the resistance value of the heating unit 121 shifts similarly to the shift of the resistance value corresponding to the target temperature specified in the heating profile.
As shown in Table 1, the heating profile initially includes an initial ramp period. The initial temperature rise period is a period in which the temperature of the heating unit 121 rises from the initial temperature to a predetermined temperature. The initial temperature is the temperature of the heating portion 121 at the start of heating. The prescribed temperature is a temperature at which a sufficient amount of aerosol is supposed to be generated for the temperature of the rod-shaped substrate 150. As shown in fig. 3, the resistance value of the heating portion 121 rises to 1.35 Ω at a glance during the initial temperature rising period, and thereafter, maintains 1.35 Ω. Thereby, the actual temperature of the heating portion 121 is once raised to 300 ℃ during the initial temperature raising period, and thereafter 300 ℃ is maintained. The period during which the temperature of the heating unit 121 increases is also referred to as a temperature increasing period, and the period during which the temperature of the heating unit 121 is maintained is also referred to as a temperature maintaining period. With the above configuration, the preliminary heating can be terminated in advance, and the suction-enabled period can be started in advance. In fig. 3, the preliminary heating period is terminated after 30 seconds from the start of heating.
As shown in table 1, the heating profile includes a halfway cool down period after the initial warm-up period. The intermediate temperature decrease period is a period in which the temperature of the heating unit 121 decreases. The intermediate temperature decrease period is constituted by a temperature decrease period in which the temperature of the heating portion 121 decreases. As shown in fig. 3, the resistance value of the heating portion 121 decreases from 1.35 Ω to 1.25 Ω during the halfway lowering period. With this, the actual temperature of the heating portion 121 is reduced to 250 ℃ during the intermediate temperature reduction period. Even in this case, a sufficient amount of aerosol is generated by the waste heat of the heating portion 121 and the rod-shaped base material 150. Here, when the heating section 121 is maintained at a high temperature, the aerosol source contained in the rod-shaped base material 150 is rapidly consumed, and the flavor is deteriorated such as the flavor being too strong for the user to taste. In this regard, by providing a midway cooling period, such deterioration of flavor can be avoided, and the quality of the user's suction experience can be improved. In addition, during the intermediate temperature reduction period, weak power supply to the heating unit 121 may be continued to the extent that the temperature of the heating unit 121 is reduced. The purpose is to measure the resistance value during the intermediate cooling period.
As shown in table 1, the heating profile includes a reheat-up period after a halfway cool-down period. The reheating period is a period after the temperature of the heating unit 121 is reduced and a period during which the temperature of the heating unit 121 is increased. As shown in fig. 3, the resistance value of the heating portion 121 is maintained at 1.25Ω first, then raised to 1.30Ω, and then maintained at 1.30Ω. Along with this, the actual temperature of the heating portion 121 is also maintained at 250 ℃, and then raised to 280 ℃, and thereafter maintained at 280 ℃. In this way, the reheat period of the heating profile may initially include a temperature maintenance period, then include a warm-up period, and finally include a temperature maintenance period. If the heating unit 121 is continuously cooled, the rod-shaped base material 150 is also cooled, so that the amount of aerosol generated is reduced, and the flavor tasted by the user is deteriorated. In addition, as the heating profile is entered in the latter half, the remaining amount of the aerosol source contained in the rod-shaped substrate 150 decreases, so that the amount of aerosol generated tends to decrease even if heating is continued at the same temperature. In this regard, by increasing the amount of aerosol generated by again increasing the temperature in the latter half of the heating profile, it is possible to compensate for the decrease in the amount of aerosol generated that accompanies the decrease in the remaining amount of the aerosol source. Thus, even in the latter half of the heating profile, deterioration of the flavor tasted by the user can be prevented.
As shown in table 1, the heating profile finally includes a heating end period. The heating end period is a period after the reheating period and during which no heating is performed. The target temperature may not be set. During the heating end period, the power supply to the heating unit 121 ends, and the temperature of the heating unit 121 decreases. Even in this case, a sufficient amount of aerosol is generated by the waste heat of the heating portion 121 and the rod-shaped base material 150. In the example shown in fig. 3, the pumping period, i.e., the heating session, ends 340 seconds after the start of heating.
(3) Notification
The control unit 116 controls the vibration element 171 to notify the user of various information. For example, the control unit 116 may notify the user of the timing at which the suction-enabled period starts and the timing at which the suction-enabled period ends. The control unit 116 may notify the user of a timing (for example, a timing at which the power supply to the heating unit 121 is completed) earlier than the end of the pumping period by a predetermined time. In this case, the user can perform suction in the suction enabled period with reference to the notification.
The control unit 116 may control the power supply from the power supply unit 111 to the vibration element 171 based on the elapsed time from the start of heating by the heating unit 121. As an example, the control unit 116 may vibrate the vibration element 171 30 seconds after the start of heating, as a notification of the timing at which the suction-enabled period starts. As another example, the control unit 116 may vibrate the vibration element 171 310 seconds after the start of heating, as a notification of timing earlier than the end of the pumping period by a predetermined time. According to the above configuration, the timing at which suction should be performed can be easily notified.
The control unit 116 may control the power supply from the power supply unit 111 to the vibration element 171 based on the resistance value measured by the measuring unit 172. As an example, the control unit 116 may vibrate the vibration element 171 10 seconds after the resistance value reaches 1.35 Ω in the initial temperature rise period, as a notification of the timing at which the suction period can start. As another example, the control unit 116 may vibrate the vibration element 171 60 seconds after the resistance value reaches 1.30Ω in the reheating period, as a notification of timing earlier than the end of the pumping period by a predetermined time. It is also considered that the actual temperature of the heating portion 121 does not shift as specified in the heating profile under the influence of the ambient temperature or the like. In this regard, according to the above-described configuration, it is possible to notify that suction should be performed at an appropriate timing in accordance with the transition of the actual temperature of the heating portion 121.
The control unit 116 may control the power supply from the power supply unit 111 to the vibration element 171 based on the number of times the aerosol generated by heating the aerosol source by the heating unit 121 is sucked. As an example, the control unit 116 may vibrate the vibration element 171 when the number of times of suction after the start of the suction enabling period reaches a predetermined number of times, as a notification of the timing at which the suction enabling period ends. The more suction is applied, the earlier the aerosol source of the rod-shaped substrate 150 is consumed and depleted. In this regard, according to the above-described configuration, the end of the suction-enabled period can be notified at an appropriate timing according to the consumption rate of the aerosol source.
(4) Technical problem
The vibration element 171 and the heating portion 121 share the power supply portion 111. Therefore, noise may be generated in the resistance value of the heating unit 121 measured by the measuring unit 172 due to the power supply to the vibration element 171. This will be described with reference to fig. 4 to 6.
Fig. 4 is a graph showing an example of actual transition of the resistance value of the heating unit 121. The horizontal axis of the graph is time (seconds). The vertical axis of the graph indicates the resistance value of the heating unit 121 measured by the measuring unit 172. In the present chart, the actual transition of the resistance value of the heating unit 121 measured by the measuring unit 172 in the case where the vibration element 171 vibrates 30 seconds after the start of heating and 310 seconds after the start of heating in the case of performing control based on the heating profile shown in table 1 is shown. The vibration element 171 vibrates 30 seconds after the start of heating and 310 seconds after the start of heating, and serves as a notification of timing at which the suction-enabled period starts and a notification of timing at which the suction-enabled period ends a predetermined time period earlier than the suction-enabled period.
As shown in fig. 4, the resistance value of the heating portion 121 shifts slightly up and down, similarly to the ideal shift shown in fig. 3. One factor that the resistance value of the heating unit 121 is finely up and down is that the measuring unit 172 samples the resistance value at a predetermined sampling period, and the control unit 116 performs power supply control at the sampling period. However, a relatively large variation occurs in the timing of supplying power to the vibration element 171. This will be described in detail with reference to fig. 5 and 6.
Fig. 5 and 6 are diagrams for enlarging the vicinity of the timing of supplying power to the vibration element 171 in the diagrams shown in fig. 4. Fig. 5 shows the actual transition of the heating section 121 around 30 seconds after the start of heating. In the example shown in fig. 5, a variation of 0.02 Ω occurs after the timing of supplying power to the vibration element 171. Fig. 6 shows the actual transition of the heating section 121 around 310 seconds after the start of heating. In the example shown in fig. 6, a variation of 0.03 Ω occurs after the timing of supplying power to the vibration element 171.
Such a relatively large fluctuation factor is the generation of noise accompanying the power supply to the vibration element 171. When power supply to the vibration element 171 is started, the current load increases stepwise with respect to the power supply portion 111. As a transient response of the current load, the resistance value measured by the measuring unit 172 fluctuates. Specifically, at the moment when the current load increases due to the power supply to the vibration element 171, a large jitter occurs in the voltage of the power supply unit 111. Further, the resistance value measured by the measuring unit 172 generates jitter (i.e., noise) with the instantaneous jitter of the voltage. For this reason, after power is supplied to the vibration element 171 of the shared heating unit 121 and the power source unit 111, noise is generated from the resistance value measured by the measuring unit 172.
Noise generated in the resistance value adversely affects the operation control of the heating section 121. In this case, it is difficult to achieve a temperature shift as designed in the heating profile, and the user experience may deteriorate. In addition, when a function for determining an error based on the resistance value is mounted in the suction device 100, the error may be erroneously determined. In this case, measures such as stopping heating, which are not necessary, are performed, and the user suffers from disadvantages.
Therefore, in the present embodiment, by executing countermeasures against noise generated by the resistance value, the occurrence of these adverse conditions is prevented, and the quality of user experience is improved.
(5) Noise countermeasure
The control unit 116 performs a process of correcting the resistance value measured by the measurement unit 172 (hereinafter, also referred to as a correction process) based on the start of the power supply from the power supply unit 111 to the vibration element 171. By correcting the resistance value generating noise, occurrence of a defective condition caused by noise generated by the resistance value can be prevented, and the quality of user experience can be improved.
The correction process includes: the correction target period is set based on the start of the power supply from the power supply unit 111 to the vibration element 171, and the resistance value measured by the measurement unit 172 during the correction target period is corrected when the resistance value is included in the correction target range. The correction target period is a period in which the measured resistance value can be corrected. By defining the correction target period, the processing load can be reduced. The correction target range is a range of resistance values considered to generate noise. By setting the correction target range, the resistance value considered to be noise-generating can be corrected, and the influence of noise can be eliminated.
-setting of the period of correction of the object
The correction target period may be a period from the start of the power supply to the vibration element 171 to the measurement of the resistance value of a predetermined number of samples. As shown in fig. 5 and 6, a large noise is generated after the power is supplied to the vibration element 171, and then the fluctuation of the resistance value converges. In this regard, according to the above-described configuration, the correction target period can be defined among periods in which large noise may occur due to the power supply to the vibration element 171. Therefore, the processing load can be reduced.
The correction target period may be a period from the start of the power supply to the vibration element 171 to the stop thereof. According to the above configuration, the entire period in which noise may be generated due to the power supply to the vibration element 171 can be converged to the correction target period. Therefore, occurrence of a defective condition due to noise generated by the resistance value can be further prevented.
-setting of the correction object range
The control unit 116 may set the correction target range based on the resistance value measured in the previous time. For example, the control unit 116 sets a range in which the difference between the resistance value measured at a certain sampling time and the resistance value measured at a sampling time immediately before the sampling time exceeds a predetermined value as the correction target range. That is, the control unit 116 may correct the resistance value measured at a certain sampling time when the difference between the resistance value measured at the certain sampling time and the resistance value measured at the sampling time immediately before the certain sampling time exceeds a predetermined value. According to the above configuration, the correction target range can be updated according to the fluctuation of the resistance value, and the occurrence of noise can be monitored. Such setting of the correction target range is particularly effective in a period in which the resistance value is supposed to change, that is, in a period in which the target temperature in the heating profile changes (that is, in a temperature rise period and a temperature decrease period).
The control unit 116 may set the correction target range based on the target temperature corresponding to the elapsed time from the start of heating. For example, the control unit 116 sets a range in which the difference in resistance value corresponding to the target temperature corresponding to the elapsed time from the start of heating exceeds a predetermined value as the correction target range. According to the above configuration, it is possible to monitor the generation of noise while suppressing the update frequency of the correction target range. Such setting of the correction target range is particularly effective in a period in which no change in the resistance value is assumed, that is, in a period in which no change in the target temperature in the heating profile is assumed (that is, in a temperature maintaining period).
In addition, when suction is performed, the temperature of the heating portion 121 temporarily decreases. Therefore, the control unit 116 can switch the method of setting the correction target range when the suction is detected. For example, the control unit 116 may set the correction target range based on the resistance value measured in the previous time for a predetermined period after the suction is detected, and set the correction target range based on the target temperature corresponding to the elapsed time from the start of heating in the other period.
The control unit 116 may select a method of setting the correction target range based on a period in the heating profile corresponding to the elapsed time from the start of heating. According to the above configuration, the effective setting method can be switched for each period specified in the heating profile, and the correction target range can be set. This can more appropriately eliminate the influence of noise.
Specifically, the control unit 116 may set the correction target range based on the target temperature corresponding to the elapsed time from the start of heating in the temperature maintaining period, which is a period in which the target temperature does not change. According to the above configuration, more effective correction can be performed during the temperature maintaining period.
On the other hand, the control unit 116 may set the correction target range based on the resistance value measured in the previous time during the target temperature change period, that is, during the temperature increase period and the temperature decrease period. According to the above configuration, more effective correction can be performed during the warm-up period and the cool-down period.
Resistance value correction method
Various methods of correcting the resistance value of the correction target can be considered. An example of this is described below. The resistance value to be corrected is a resistance value measured during the correction target period and is a resistance value included in the correction target range.
The control unit 116 may correct the resistance value to be corrected to a resistance value measured before the resistance value to be corrected. For example, the control unit 116 corrects the resistance value to be corrected to the correction value measured in the previous time. Such a correction method is particularly effective in a period in which no change in the resistance value is assumed, that is, in a period in which no change in the target temperature in the heating profile is assumed (that is, in a temperature maintenance period).
The control unit 116 may correct the resistance value of the correction target by linear interpolation. Alternatively, the control unit 116 may correct the resistance value to be corrected by moving average. In any case, the control unit 116 can correct the resistance value to be corrected so as to follow the general tendency of the change in the resistance value. Such a correction method is particularly effective in a period assumed to be a change in resistance value, that is, a period in which the target temperature in the heating profile changes (that is, a temperature increase period and a temperature decrease period).
The control unit 116 may select a method of correcting the resistance value of the correction target in the correction process based on the period in the heating profile corresponding to the elapsed time from the start of heating. According to the above configuration, the effective correction method can be switched for each period specified in the heating profile, and the resistance value of the measurement object can be corrected. This can more appropriately eliminate the influence of noise.
Specifically, the control unit 116 may correct the resistance value to be corrected to the resistance value measured before the resistance value to be corrected in the temperature maintaining period, which is a period in which the target temperature does not change. According to the above configuration, more effective correction can be performed during the temperature maintaining period.
On the other hand, the control unit 116 may correct the resistance value to be corrected by linear interpolation or moving average during the target temperature change period, that is, during the temperature increase period and the temperature decrease period. According to the above configuration, more effective correction can be performed during the temperature rising period and during the temperature lowering period.
Error handling
The control unit 116 may prohibit the heating by the heating unit 121 when the number of times the resistance value measured by the measuring unit 172 is included in the correction target range (in short, the number of times the resistance value is corrected) reaches the 1 st predetermined number of times during the correction target period. The prohibition of heating by the heating unit 121 means stopping heating if heating is in progress and not performing heating even if a user operation for instructing the start of heating is performed in the future. The control unit 116 may prohibit the heating by the heating unit 121 when the number of times the resistance value is corrected in one correction target period reaches the 1 st predetermined number of times. Alternatively, the control unit 116 may prohibit the heating by the heating unit 121 when the total number of times the resistance value is corrected in the plurality of correction target periods set in the heating based on the one-time heating profile reaches the 1 st predetermined number of times. If the number of corrections is excessive, it is considered that noise is not generated and any error is generated in the heating unit 121. In this regard, according to the above-described configuration, it is possible to determine an error of the heating unit 121 and to improve the safety of the user.
In particular, the control unit 116 may not prohibit the heating by the heating unit 121 when the number of times that the resistance value measured by the measuring unit 172 is continuously included in the correction target range reaches the 1 st predetermined number of times during the correction target period. The resistance value is continuously included in the correction target range, and it is considered that the heating unit 121 has a high probability of generating some error. In this regard, according to the above-described structure, the user's safety can be further improved.
On the other hand, the control unit 116 may prohibit the heating by the heating unit 121 when the number of times that the resistance value measured by the measuring unit 172 is included in the error determination range reaches the 2 nd predetermined number of times in a period other than the correction target period. The error determination range is a range of resistance values in which the heating unit 121 is considered to be defective. The error determination range can be set by the same method as the correction target range. According to the above configuration, even in a period in which power supply to the vibration element 171 is not performed, an error of the heating unit 121 can be determined, and the safety of the user can be improved.
The control unit 116 may set the error determination range more strictly than the correction target range. Specifically, if the correction target range includes a range equal to or greater than the 1 st threshold and a range smaller than the 2 nd threshold, the error determination range includes a range equal to or greater than the 3 rd threshold which is lower than the 1 st threshold and a range smaller than the 4 th threshold which is higher than the 2 nd threshold. In other words, the control unit 116 corrects the resistance value if the resistance value measured during the correction target period is equal to or greater than the 1 st threshold value, and determines that an error has occurred if the resistance value measured during a period other than the correction target period is equal to or greater than the 3 rd threshold value that is lower than the 1 st threshold value. The control unit 116 corrects the resistance value if the resistance value measured during the correction target period is smaller than the 2 nd threshold value, and determines that an error has occurred if the resistance value measured during a period other than the correction target period is smaller than the 4 th threshold value of the Yu Gaoyu 2 nd threshold value. In the correction target period, the resistance value is considered to vary more under the influence of noise than in a period other than the correction target period. In this regard, setting the correction target range to be larger than the erroneous determination range can prevent the erroneous determination of the fluctuation of the resistance value due to the influence of noise.
Here, the 1 st predetermined number of times is preferably set to be larger than the 2 nd predetermined number of times. Because the generation of noise by the resistance value according to the power supply to the vibration element 171 is not erroneous. In this regard, according to the above-described configuration, it is possible to prevent a situation in which the occurrence of noise is erroneously determined as an error, and the user suffers from a disadvantage.
(6) Flow of processing
Fig. 7 is a flowchart showing an example of the flow of processing executed by the suction apparatus 100 according to the present embodiment.
As shown in fig. 7, first, the control unit 116 determines whether or not a suction request is detected (step S102). The suction request is a user operation requesting generation of aerosol (i.e., indicating start of heating). An example of the suction request is an operation of the suction device 100 such as an operation of a switch or the like provided in the suction device 100. Other examples of suction requests are insertion of a stick-type substrate 150 into the suction device 100. The insertion of the stick-type base material 150 into the suction device 100 may be detected by a capacitive proximity sensor that detects the capacitance of the space near the opening 142, a pressure sensor that detects the pressure in the internal space 141, or the like.
When it is determined that the suction request is not detected (no in step S102), the control unit 116 stands by until the suction request is detected.
On the other hand, when it is determined that the suction request is detected (yes in step S102), the control unit 116 controls the operation of the heating unit 121 so as to start heating based on the heating profile (step S104). For example, the control unit 116 starts a process of controlling the supply of electric power from the power supply unit 111 so that the actual temperature of the heating unit 121 corresponding to the resistance value measured by the measurement unit 172 is shifted in the same manner as the target temperature specified in the heating profile.
Next, the control unit 116 determines whether or not an error condition is satisfied (step S106). An example of the error condition is that the number of times that the resistance value measured by the measuring unit 172 is included in the correction target range in the correction target period reaches the 1 st predetermined number of times. An example of the error condition is that the number of times the resistance value measured by the measuring unit 172 is included in the error determination range reaches the 2 nd predetermined number of times.
When it is determined that the error condition is satisfied (yes in step S106), the control unit 116 prohibits the heating by the heating unit 121 (step S108). After that, the process ends.
When it is determined that the error condition is not satisfied (step S106: no), the control unit 116 determines whether or not the end condition is satisfied (step S110). An example of the end condition is that the elapsed time from the start of heating reaches a predetermined time. An example of the end condition is that the number of times of suction from the start of heating reaches a prescribed number of times.
When it is determined that the end condition is satisfied (yes in step S110), the control unit 116 ends the heating based on the heating profile (step S112). After that, the process ends.
When it is determined that the end condition is not satisfied (step S110: no), the control unit 116 determines whether or not to start power supply to the vibration element 171 (step S114). For example, when the timing at which the pumping period starts and the timing at which the pumping period ends are earlier than the timing at which the pumping period ends by a predetermined time come, the control unit 116 determines to start the power supply to the vibration element 171.
If it is determined that the power supply to the vibration element 171 has not been started (114: no), the process returns to step S106.
When it is determined that the power supply to the vibration element 171 is started (yes in step S116), the control unit 116 starts the power supply to the vibration element 171 and sets a correction target period (step S116). For example, the control unit 116 sets a predetermined period from the start of the power supply to the vibration element 171 as the correction target period.
Next, the control unit 116 determines whether or not the current time is within the correction target period (step S118).
When it is determined that the current time is outside the correction target period, that is, the correction target period is completed (step S118: NO), the process returns to step S106.
When it is determined that the current time is within the correction target period (yes in step S118), the control unit 116 determines whether or not the resistance value of the heating unit 121 measured by the measuring unit 172 is included in the correction target range (step S120).
When it is determined that the resistance value of the heating unit 121 is not included in the correction target range (step S120: no), the process returns to step S118.
When it is determined that the resistance value of the heating unit 121 is included in the correction target range (yes in step S120), the control unit 116 corrects the resistance value included in the correction target range (step S122). For example, the control unit 116 corrects the resistance value to be corrected to the resistance value measured in the previous time, or increases the resistance value to be corrected by linear interpolation or moving average correction.
Next, the control section 116 controls heating based on the heating profile based on the corrected resistance value (step S124). After that, the process returns to step S118.
< 3, embodiment 2 >
The present embodiment is a method of performing correction processing of the resistance value of the heating unit 121 in consideration of the temperature decrease of the heating unit 121 associated with the suction.
When the sensor unit 112 detects a value associated with the suction, the control unit 116 determines that the suction is performed. An example of the value associated with the suction is a temperature decrease in the air flow path detected by a temperature sensor such as a thermistor disposed in the air flow path to the holding portion 140. The temperature is greatly reduced when deep suction (suction with a large suction amount) is performed, and the temperature is slightly reduced when shallow suction (suction with a small suction amount) is performed.
The control unit 116 performs the correction processing based on the suction. When the suction is performed, not only the air flow path but also the temperature of the heating portion 121 is reduced, and therefore the resistance value of the heating portion 121 is changed. In this regard, according to the above-described configuration, the influence of noise can be more appropriately eliminated taking into consideration the variation in the resistance value caused by the influence of suction.
Specifically, the control unit 116 may set the correction target range based on the suction. For example, the control unit 116 estimates the amount of decrease in the resistance value of the heating unit 121 associated with the suction from the decrease in the temperature of the air flow path. The control unit 116 may reduce the reduction amount of the resistance value associated with the pumping operation in accordance with the correction target range set at the start of the power supply to the vibration element 171.
The control unit 116 may correct the resistance value of the correction target according to the suction. For example, when the resistance value to be corrected is corrected by the moving average, the control unit 116 may apply the moving average to the value after the suction.
< 4. 3 rd embodiment >
In the present embodiment, when the amount of power supplied from the power supply unit 111 to the heating unit 121 varies greatly, the resistance value of the heating unit 121 is corrected by taking the variation into consideration.
The control unit 116 performs correction processing based on the amount of change in the amount of power supplied from the power supply unit 111 to the heating unit 121 exceeding a predetermined threshold. When the amount of power supplied to the heating portion 121 greatly changes, the resistance value of the heating portion 121 also greatly changes. In this regard, according to the above-described configuration, the influence of noise can be more appropriately eliminated, taking into consideration the change in the resistance value caused by the large change in the amount of power supplied to the heating portion 121.
As an example of a factor in which the amount of power supplied to the heating portion 121 greatly varies, deep suction is performed. When deep suction is performed, the temperature of the heating unit 121 is greatly reduced, and the difference from the target temperature increases. Therefore, the duty ratio of the power pulse to be supplied to the heating unit 121 is controlled to be increased. With this, noise may be generated in the resistance value of the heating unit 121 measured by the measuring unit 172.
Therefore, the control unit 116 performs the correction processing in response to the amount of change in the amount of power supplied to the heating unit 121 exceeding a predetermined threshold. The correction process includes: the correction target period is set based on the amount of change in the amount of power supplied from the power supply unit 111 to the heating unit 121 exceeding a predetermined threshold value, and the resistance value measured by the measuring unit 172 during the correction target period is corrected when the resistance value is included in the correction target range. The setting of the correction target period, the setting of the correction target range, the correction method of the resistance value, and the error processing can be performed in the same manner as in embodiment 1. According to the above configuration, the influence of noise generated with a large variation in the amount of power supplied to the heating unit 121 can be appropriately eliminated.
The correction target period set in accordance with the start of power supply from the power supply unit 111 to the vibration element 171 described in embodiment 1 is also referred to as a 1 st correction target period. On the other hand, the correction target range set in accordance with the change amount of the power supply amount from the power supply unit 111 to the heating unit 121 exceeding the predetermined threshold value described in the present embodiment is also referred to as a 2 nd correction target period. When the 1 st correction target period and the 2 nd correction target period are repeated, the control unit 116 connects the 1 st correction target period and the 2 nd correction target period. For example, consider a case where deep suction is performed, and the vibration element 171 vibrates in a period from the start to the end of the 2 nd correction target period, and the 1 st correction target period is started. In this case, the control unit 116 performs the correction processing for a series of correction target periods from the start of the 2 nd correction target period to the end of the 1 st correction target period. According to the above-described configuration, even in the case where a large change in the amount of power supplied to the heating portion 121 and vibration of the vibration element 171 are generated at the same time, the influence of noise can be appropriately eliminated.
< 5 supplement >
The preferred embodiments of the present invention have been described in detail above with reference to the drawings, but the present invention is not limited to the examples described above. It is to be understood that, if a person having ordinary skill in the art to which the present invention pertains, various modifications and corrections are conceivable within the scope of the present invention as described in the claims, and these are naturally understood to be within the technical scope of the present invention.
For example, in the above embodiment, the example in which the heating profile is information defining time-series transition of the target temperature was described, but the present invention is not limited to the example. For example, the heating profile may be information defining a time-series transition of a target value of the resistance value of the heating unit 121. In this case, the control unit 116 controls the operation of the heating unit 121 so that the measured resistance value changes in the same manner as the resistance value specified in the heating profile.
For example, in the above embodiment, the example in which the power supply unit 111 is constituted by a rechargeable battery has been described, but the present invention is not limited to the above example. The power supply unit 111 may include a voltage regulator such as a step-up/step-down converter and a LDO (Low Drop Out) regulator in addition to the battery. In this case, the power supplies for supplying power to the heating unit 121, the vibration element 171, and the measuring unit 172 may be the same battery or a voltage adjusting device, or may be at least partially different. Even when the voltage adjustment device is included, since the input value is supplied from the battery, voltage fluctuation occurs even when the heating unit 121, the vibration element 171, and the measurement unit 172 are supplied with electric power from different power sources. That is, even when the power supply unit 111 includes a voltage adjustment device, the heating unit 121, the vibration element 171, and the measurement unit 172 are supplied with power from different power sources, voltage fluctuations occur when power is supplied from the same power supply unit 111. In addition, when power is supplied via the same voltage adjustment device, noise of the resistance value measured by the measuring unit 172 is more likely to occur with power supply to the vibration element 171 than with power supply via a different voltage adjustment device.
For example, in the above-described embodiment, an example in which weak power supply to the heating portion 121 is continued even during the intermediate temperature reduction period has been described, but the present invention is not limited to the above-described example. During the intermediate temperature decrease period, the power supply to the heating unit 121 may be stopped. In this case, the temperature of the heating part 121 may be detected by another temperature sensor such as a thermistor, and used for control of the heating part 121. Further, as for the temperature sensor, it is preferable to implement a countermeasure in terms of hardware for suppressing the generation of noise accompanying the power supply to the vibration element 171. The reason is that the above-described correction process is not applied to the temperature of the heating portion 121 detected by the temperature sensor. As an example, the temperature sensor and the heating part 121 and the vibration element 171 may be supplied with power via different voltage adjustment devices. As another example, a capacitor may be arranged between the power supply unit 111 and the temperature sensor.
For example, in embodiment 3 described above, deep pumping is described as an example of a factor in which the amount of power supplied to the heating portion 121 greatly varies, but the present invention is not limited to the example described above. As other factors, there is exemplified a state in which heating is started from a state in which heating by the heating portion 121 is stopped. For example, when power supply to the heating unit 121 is stopped during the intermediate temperature decrease period and then power supply to the heating unit 121 is restarted during the reheating period, the amount of power supplied to the heating unit 121 greatly varies, and noise may be generated in the resistance value of the heating unit 121 measured by the measuring unit 172. Accordingly, the control unit 116 may perform the correction processing by triggering the change in the amount of power supplied to the heating unit 121 exceeding a predetermined threshold in response to the switching from the heating off state to the heating on state. The content of the correction process is as described in embodiment 3. Further, when switching from heating off to heating on, the temperature of the heating unit 121 increases greatly. Therefore, when the resistance value to be corrected is corrected by performing weak power supply to the heating unit 121 before switching to heating on, it is preferable to use the resistance value obtained before switching to heating on as the corrected resistance value. Alternatively, it is preferable to use a resistance value measured before at least the influence of noise caused by transient response becomes a peak value after switching to heating on as the corrected resistance value. It is considered that at least the influence of noise caused by the transient response after switching to the heating on becomes smaller in the resistance value measured before the peak value than in the resistance value measured after that.
For example, in the above embodiment, the example in which the vibration element 171 vibrates at the timing related to the start period and the end period of the suction enabled period has been described, but the present invention is not limited to the above example. The vibration element 171 may vibrate at any timing during heating of the heating portion 121.
For example, in the above-described embodiment, the vibration element 171 is an example of an operation portion that is different from the heating portion 121 and operates using the electric power supplied from the power supply portion 111, but the present invention is not limited to the above-described example. The control unit 116 may control the process of correcting the resistance value based on the start of power supply to any operation unit that operates using the power supplied from the power supply unit 111. As an example of the operation unit, a light emitting element which is a light emitting device is given. As an example of the operation unit, a display device that displays an image and a sound output device that outputs a sound are given.
For example, in the above embodiment, the example in which the correction process is controlled in response to the start of the power supply to the operation unit has been described, but the present invention is not limited to the above example. For example, the correction process may be controlled in accordance with the operation content of the operation unit executed by the power supply to the operation unit. Specifically, the control unit 116 may set the length of the correction target period according to the vibration mode (amplitude, vibration interval, etc.) of the vibration element 171, or may select a correction method for the resistance value. The current load to the power supply section 111 may be different depending on the vibration mode. In this regard, by the structure described above, the influence of noise can be more appropriately eliminated.
For example, in the above embodiment, the example was described in which the measured value measured by the measuring unit 172 is the resistance value of the heating unit 121, but the present invention is not limited to the example. The measurement value measured by the measurement unit 172 may be the temperature of the heating unit 121. The measurement value measured by the measurement unit 172 may be a voltage drop in the heating unit 121.
Further, a series of processes of each device described in this specification may be implemented using any one of software, hardware, and a combination of software and hardware. Programs constituting the software are stored in advance in a recording medium (non-transitory medium) provided inside or outside each device, for example. Each program is read by a RAM and executed by a processor such as a CPU when executed by a computer for controlling each device described in the present specification, for example. The recording medium is, for example, a magnetic disk, an optical magnetic disk, a flash memory, or the like. The computer program may be distributed via a network, for example, without using a recording medium.
In this specification, the processes described using the flowcharts and the timing charts are not necessarily executed in the order illustrated. Several process steps may also be performed in parallel. Further, an additional process step may be employed, or a part of the process steps may be omitted.
The following constitution also falls within the technical scope of the present invention.
(1) A suction device is provided with:
a power supply unit for supplying electric power;
a heating unit configured to heat a substrate containing an aerosol source using electric power supplied from the power supply unit;
a measurement unit configured to measure a measurement value corresponding to a temperature of the heating unit;
an operation unit that operates using the electric power supplied from the power supply unit, unlike the heating unit; and
a control unit that controls operation of the heating unit based on a heating setting that defines a time-series transition of a target temperature, the target temperature being a target value of the temperature of the heating unit, so that the temperature of the heating unit corresponding to the measured value transitions similarly to the target temperature,
the control unit performs a correction process for correcting the measured value based on the start of the power supply from the power supply unit to the operation unit.
(2) The suction apparatus according to the above (1), wherein,
the correction process includes:
setting a correction target period based on the start of power supply from the power supply unit to the operation unit; and
when the measured value measured by the measuring unit during the correction target period is included in the correction target range, the measured value is corrected.
(3) The suction device according to the above (2)
The control unit sets the correction target range based on the measured value measured in the previous time.
(4) The suction device according to the above (2), wherein,
the control unit sets the correction target range based on the target temperature corresponding to the elapsed time from the start of heating.
(5) The suction device according to any one of the above (2) to (4), wherein,
the correction process includes: and correcting the measured value to be corrected to the measured value measured before the measured value to be corrected.
(6) The suction device according to any one of the above (2) to (4), wherein,
the correction process includes: the measured value to be corrected is corrected by linear interpolation.
(7) The suction device according to any one of the above (2) to (4), wherein,
the correction process includes: the measured value to be corrected is corrected by moving average.
(8) The suction device according to any one of the above (2) to (4), wherein,
the heating setting includes a plurality of periods in which the target temperature is set respectively,
the control unit selects a method of correcting the measured value of the correction target in the correction process based on the period in the heating setting corresponding to the elapsed time from the start of heating.
(9) The suction device according to the above (8), wherein,
the control unit corrects the measured value to be corrected to the measured value measured before the measured value to be corrected in the period in which the target temperature does not change.
(10) The attraction device as described in the above (8) or (9), wherein,
the control unit corrects the measured value of the correction target by linear interpolation or moving average during the period of the target temperature change.
(11) The suction device according to any one of the above (2) to (10), wherein,
the control unit prohibits heating by the heating unit when the number of times the measured value measured by the measuring unit is included in the correction target range during the correction target reaches a 1 st predetermined number of times.
(12) The suction apparatus according to the above (11), wherein,
the control unit prohibits heating by the heating unit when the number of times the measured value measured by the measuring unit is included in the correction target range during the correction target reaches a 1 st predetermined number of times.
(13) The attraction device according to the above (11) or (12), wherein,
when the number of times that the measured value measured by the measuring unit is included in the error determination range in a period other than the correction target period reaches the 2 nd predetermined number of times, the control unit prohibits the heating by the heating unit,
The 1 st predetermined number of times is greater than the 2 nd predetermined number of times.
(14) The suction device according to the above (13), wherein,
the correction target range includes a range equal to or larger than the 1 st threshold and a range smaller than the 2 nd threshold,
the error determination range includes a range equal to or greater than a 3 rd threshold value and a range equal to or less than a 4 th threshold value, wherein the 3 rd threshold value is lower than the 1 st threshold value and the 4 th threshold value is higher than the 2 nd threshold value.
(15) The suction device according to any one of the above (2) to (14), wherein,
the correction target period is a period from when power supply to the operation unit is started to when the measurement value of a predetermined number of samples is measured.
(16) The suction device according to any one of the above (2) to (14), wherein,
the correction target period is a period from when the power supply to the operation unit is started to when the power supply to the operation unit is stopped.
(17) The suction device according to any one of the above (1) to (16), wherein,
the control unit performs the correction processing based on the aerosol generated by heating the aerosol source being sucked.
(18) The suction device according to any one of the above (1) to (17), wherein,
The control unit performs the correction processing based on the amount of change in the amount of power supplied from the power supply unit to the heating unit exceeding a predetermined threshold.
(19) The suction apparatus according to the above (18), wherein,
the correction process includes:
setting a correction target period based on the change in the amount of power supplied from the power supply unit to the heating unit exceeding a predetermined threshold; and
when the measured value measured by the measuring unit is included in the correction target range in the correction target period, the measured value is corrected.
(20) The suction device according to the above (19), wherein,
when the 1 st correction target period and the 2 nd correction target period are repeated, the control unit connects the 1 st correction target period and the 2 nd correction target period, wherein the 1 st correction target period is the correction target period set based on the start of the power supply from the power supply unit to the operation unit, and the 2 nd correction target period is the correction target range set based on the change amount of the power supply amount from the power supply unit to the heating unit exceeding a predetermined threshold.
(21) The suction device according to any one of the above (1) to (20), wherein,
The control unit performs the correction processing based on the operation content of the operation unit that is executed by the power supply to the operation unit.
(22) The suction device according to any one of the above (1) to (21), wherein,
the control unit controls the power supply from the power supply unit to the operation unit based on the measured value.
(23) The suction device according to any one of the above (1) to (22), wherein,
the control unit controls the power supply from the power supply unit to the operation unit based on an elapsed time from the start of heating by the heating unit or the number of times the aerosol generated by heating the aerosol source is sucked.
(24) The suction device according to any one of the above (1) to (23), wherein,
the operation portion is a vibration element or a light-emitting element.
(25) A substrate heated by a suction device and containing an aerosol source,
the suction device includes:
a power supply unit for supplying electric power;
a heating unit configured to heat a substrate containing an aerosol source using electric power supplied from the power supply unit;
a measurement unit configured to measure a measurement value corresponding to a temperature of the heating unit;
an operation unit that operates using the electric power supplied from the power supply unit, unlike the heating unit; and
A control unit that controls operation of the heating unit based on a heating setting that defines a time-series transition of a target temperature, the target temperature being a target value of the temperature of the heating unit, so that the temperature of the heating unit corresponding to the measured value transitions similarly to the target temperature,
the control unit performs a correction process for correcting the measured value based on the start of the power supply from the power supply unit to the operation unit.
(26) A control method for controlling a suction device,
the suction device includes:
a power supply unit for supplying electric power;
a heating unit configured to heat a substrate containing an aerosol source using electric power supplied from the power supply unit;
a measurement unit configured to measure a measurement value corresponding to a temperature of the heating unit; and
an operation unit that operates using the electric power supplied from the power supply unit, unlike the heating unit,
the control method comprises the following steps:
performing a correction process for correcting the measured value based on the start of power supply from the power supply unit to the operation unit; and
the operation of the heating unit is performed based on a heating setting that defines a time-series transition of a target temperature, which is a target value of the temperature of the heating unit, so that the temperature of the heating unit corresponding to the measured value transitions similarly to the target temperature.
Description of the reference numerals
100 attraction means; a 111 power supply section; 112 a sensor section; a 113 notification unit; 114 a storage section; 115 communication unit; 116 a control unit; 121 a heating section; 140 a holding portion; 141 an inner space; 142 opening; 143 bottom; 144 insulation; 150 bar substrate; 151 base material parts; 152 suction part; 171 vibration element; 172 measurement section.
Claims (20)
1. A suction device is provided with:
a power supply unit for supplying electric power;
a heating unit configured to heat a substrate containing an aerosol source using electric power supplied from the power supply unit;
a measurement unit configured to measure a measurement value corresponding to a temperature of the heating unit;
an operation unit that operates using the electric power supplied from the power supply unit, unlike the heating unit; and
a control unit that controls operation of the heating unit based on a heating setting in which a time-series transition of a target temperature is specified, such that the temperature of the heating unit corresponding to the measured value transitions similarly to the target temperature, the target temperature being a target value of the temperature of the heating unit,
the control unit performs a correction process for correcting the measured value, based on the start of the power supply from the power supply unit to the operation unit.
2. The suction device according to claim 1, wherein,
the correction process includes:
setting a correction target period based on start of power supply from the power supply unit to the operation unit; and
when the measured value measured by the measuring unit during the correction target is included in the correction target range, the measured value is corrected.
3. The suction device according to claim 2, wherein,
the control unit sets the correction target range based on the measured value measured in the previous time or the target temperature corresponding to the elapsed time from the start of heating.
4. An attracting device as claimed in claim 2 or 3, wherein,
the correction process includes any one of the following: the measured value to be corrected is corrected to the measured value measured before the measured value to be corrected, corrected by linear interpolation, and corrected by moving average.
5. The suction device according to any one of claims 2 to 4, wherein,
the heating setting includes setting a plurality of periods of the target temperature respectively,
the control unit selects a method of correcting the measured value to be corrected in the correction process based on the period in the heating setting corresponding to the elapsed time from the start of heating.
6. The suction device according to claim 5, wherein,
during the period in which the target temperature does not change, the control unit corrects the measured value to be corrected to the measured value measured before the measured value to be corrected.
7. The suction device according to claim 5 or 6, wherein,
during the period in which the target temperature changes, the control unit corrects the measured value to be corrected by linear interpolation or moving average.
8. The suction device according to any one of claims 2 to 7, wherein,
the control unit prohibits heating by the heating unit when the number of times the measured value measured by the measuring unit is included in the correction target range during the correction target reaches a 1 st predetermined number of times.
9. The suction device according to claim 8, wherein,
when the number of times that the measured value measured by the measuring unit is included in the error determination range in a period other than the correction target period reaches the 2 nd predetermined number of times, the control unit prohibits heating by the heating unit,
the 1 st prescribed number of times is greater than the 2 nd prescribed number of times.
10. The suction device according to claim 9, wherein,
the correction target range includes a range equal to or greater than the 1 st threshold and a range smaller than the 2 nd threshold,
the error determination range includes a range above a 3 rd threshold value, which is lower than the 1 st threshold value, and a range below a 4 th threshold value, which is higher than the 2 nd threshold value.
11. The suction device according to any one of claims 2 to 10, wherein,
the correction target period is a period from when power supply to the operation unit is started to when the measured value is measured for a predetermined number of samples.
12. The suction device according to any one of claims 2 to 10, wherein,
the correction target period is a period from when power supply to the operation unit is started to when power supply to the operation unit is stopped.
13. The suction device according to any one of claims 1 to 12, wherein,
the control unit performs the correction processing based on the aerosol generated by heating the aerosol source being suctioned.
14. The suction device according to any one of claims 1 to 13, wherein,
the control unit performs the correction processing based on the amount of change in the amount of power supplied from the power supply unit to the heating unit exceeding a predetermined threshold.
15. The suction device according to claim 14, wherein,
the correction process includes:
setting a correction target period based on the amount of change in the amount of power supplied from the power supply unit to the heating unit exceeding a predetermined threshold; and
when the measured value measured by the measuring unit during the correction target is included in the correction target range, the measured value is corrected.
16. The suction device according to claim 15, wherein,
when the 1 st correction target period and the 2 nd correction target period are repeated, the control unit connects the 1 st correction target period and the 2 nd correction target period, wherein the 1 st correction target period is the correction target period set based on the start of the power supply from the power supply unit to the operation unit, and the 2 nd correction target period is the correction target range set based on the change amount of the power supply amount from the power supply unit to the heating unit exceeding a predetermined threshold.
17. The suction device according to any one of claims 1 to 16, wherein,
the control unit performs the correction processing based on the operation content of the operation unit, which is executed by supplying power to the operation unit.
18. The suction device according to any one of claims 1 to 17, wherein,
the operation part is a vibration element or a light-emitting element.
19. A substrate heated by a suction device and containing an aerosol source,
the suction device is provided with:
a power supply unit for supplying electric power;
a heating unit configured to heat a substrate containing an aerosol source using electric power supplied from the power supply unit;
a measurement unit configured to measure a measurement value corresponding to a temperature of the heating unit;
an operation unit that operates using the electric power supplied from the power supply unit, unlike the heating unit; and
a control unit that controls operation of the heating unit based on a heating setting in which a time-series transition of a target temperature is specified, such that the temperature of the heating unit corresponding to the measured value transitions similarly to the target temperature, the target temperature being a target value of the temperature of the heating unit,
the control unit performs a correction process for correcting the measured value, based on the start of the power supply from the power supply unit to the operation unit.
20. A control method for controlling a suction device,
the suction device is provided with:
a power supply unit for supplying electric power;
A heating unit configured to heat a substrate containing an aerosol source using electric power supplied from the power supply unit;
a measurement unit configured to measure a measurement value corresponding to a temperature of the heating unit; and
an operation unit that operates using the electric power supplied from the power supply unit, unlike the heating unit,
the control method comprises the following steps:
performing a correction process for correcting the measured value, based on the start of power supply from the power supply unit to the operation unit; and
the operation of the heating unit is performed based on a heating setting in which a time-series transition of a target temperature is specified, so that the temperature of the heating unit corresponding to the measured value transitions similarly to the target temperature, the target temperature being a target value of the temperature of the heating unit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2021/033007 WO2023037445A1 (en) | 2021-09-08 | 2021-09-08 | Inhalation device, substrate, and control method |
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| CN117794411A true CN117794411A (en) | 2024-03-29 |
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| CN202180101342.0A Pending CN117794411A (en) | 2021-09-08 | 2021-09-08 | Suction device, base material, and control method |
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| US (1) | US20240090590A1 (en) |
| EP (1) | EP4356770A1 (en) |
| JP (1) | JPWO2023037445A1 (en) |
| KR (1) | KR20240032085A (en) |
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| JPH11101656A (en) * | 1997-09-26 | 1999-04-13 | Nippon Denshi Kogyo Kk | Signal processing method and signal processing equipment |
| RU2655908C2 (en) * | 2013-06-19 | 2018-05-29 | ФОНТЕМ ХОЛДИНГС 4 Би.Ви. | Device and method for sensing mass airflow |
| JP7082140B2 (en) | 2017-04-11 | 2022-06-07 | ケーティー アンド ジー コーポレイション | Aerosol generation devices and methods that provide adaptive feedback via puff recognition |
| JP6795269B2 (en) * | 2019-12-27 | 2020-12-02 | 日本たばこ産業株式会社 | Aerosol generator and aerosol generator control method and program |
| JP2021036881A (en) * | 2020-11-06 | 2021-03-11 | 日本たばこ産業株式会社 | Aerosol generation device, and method and program for operating the same |
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2021
- 2021-09-08 WO PCT/JP2021/033007 patent/WO2023037445A1/en active Application Filing
- 2021-09-08 JP JP2023546624A patent/JPWO2023037445A1/ja active Pending
- 2021-09-08 EP EP21956742.7A patent/EP4356770A1/en active Pending
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| JPWO2023037445A1 (en) | 2023-03-16 |
| US20240090590A1 (en) | 2024-03-21 |
| KR20240032085A (en) | 2024-03-08 |
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