Sidestream smoke removal device and control method thereof

A sidestream smoke removal device comprising:

• a housing in which a smoking space is formed;
• an article insertion portion disposed at one end of the housing and configured to form an opening for insertion of a smoking article into the smoking space;
• an ignition portion configured to ignite the smoking article inserted into the smoking space;
• a sidestream smoke processing portion configured to process sidestream smoke generated from the smoking article inserted into the smoking space;
• a temperature sensor including a first temperature sensor and a second temperature sensor disposed at different positions inside the smoking space along a longitudinal direction of the smoking article, and being configured to measure a temperature of the smoking article inserted into the smoking space, the first temperature sensor being disposed to measure a temperature near a downstream end of a smoking material portion constituting the inserted smoking article, the second temperature sensor being disposed to measure a temperature near an upstream end of the smoking material portion opposite to the first temperature sensor;
• a display disposed outside the housing;
• a vent formed in the housing and through which outside air enters;
• and
• a controller configured to:
• detect a start of smoking of the smoking article based on a temperature measured by the second temperature sensor,
• based on detecting the start of the smoking of the smoking article, open the vent,
• in a state in which the vent is opened, control the vent such that a degree of opening of the vent during a puff while smoking is greater than the degree of opening of the vent during a non-puff while smoking,
• in response to detecting an end of smoking, close the vent,
• determine an intensity of a puff event based on a change in the measured temperature,
• monitor smoking progress with respect to the smoking article by determining a position of an ignited portion of the smoking article between the first temperature sensor and the second temperature sensor based on a comparison between a temperature measured by the first temperature sensor and a temperature measured by the second temperature sensor,
• on the basis of the temperature measured by the first temperature sensor, determine whether smoking has ended, and
• display a monitoring result through the display, including information about the position of the ignited portion of the smoking article.