US 11,882,882 B2
Method of controlling aerosol generating device with a plurality of geomagnetic sensors and aerosol generating device controlled thereby
Hun Il Lim, Seoul (KR); Tae Hun Kim, Yongin-si (KR); Hyung Jin Jung, Seoul (KR); Jae Sung Choi, Hanam-si (KR); and Jung Ho Han, Daejeon (KR)
Assigned to KT&G CORPORATION, Daejeon (KR)
Appl. No. 16/959,248
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Nov. 8, 2019, PCT No. PCT/KR2019/015140
§ 371(c)(1), (2) Date Jun. 30, 2020,
PCT Pub. No. WO2020/149505, PCT Pub. Date Jul. 23, 2020.
Claims priority of application No. 10-2019-0005865 (KR), filed on Jan. 16, 2019.
Prior Publication US 2021/0227889 A1, Jul. 29, 2021
Int. Cl. A24F 40/53 (2020.01); A24F 40/51 (2020.01); A24F 40/10 (2020.01); A24F 40/20 (2020.01); A24F 40/57 (2020.01); A24F 40/30 (2020.01); A24F 40/42 (2020.01); A24D 1/20 (2020.01); G01V 3/40 (2006.01); H05B 1/02 (2006.01)
CPC A24F 40/53 (2020.01) [A24D 1/20 (2020.01); A24F 40/10 (2020.01); A24F 40/20 (2020.01); A24F 40/30 (2020.01); A24F 40/42 (2020.01); A24F 40/51 (2020.01); A24F 40/57 (2020.01); G01V 3/40 (2013.01); H05B 1/0252 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An aerosol generating device comprising:
a heater configured to generate aerosol by heating an aerosol generating substrate;
a controller configured to control power supplied to the heater;
at least one detachable element that is attachable to and detachable from an inner space or an outer space of the aerosol generating device; and
a plurality of geomagnetic sensors configured to detect a change in strength of an internal magnetic field of the aerosol generating device;
wherein the plurality of geomagnetic sensors comprise a first geomagnetic sensor and a second geomagnetic sensor, and
wherein the controller is further configured to:
determine whether the at least one detachable element has passed through a predetermined area of the inner space or the outer space, based on a detection result from the first geomagnetic sensor, and
determine whether the at least one detachable element is completely attached to the inner space or the outer space, based on a detection result from the second geomagnetic sensor.