Sharp Kabushiki Kaisha Corporation

Takahide Fujii

Daisuke Moriuchi

Shintaro Nomura

Katsushi Fujii

Air-cleaning control is performed in accordance with a situation of motion of a person and brightness in a room. An air-cleaning device () includes: a first determination unit () that determines, from a detection signal from a person detection sensor (), whether a state of an air-cleaning target room is at least any of a state where a person is absent in the air-cleaning target room, a state where a person is present and a motion amount is small, and a state where a person is present and the motion amount is large; a second determination unit () that determines, from a detection signal from as illuminance sensor (), whether the state of the air-cleaning target room is at least any of a state where it is bright inside the air-cleaning target room and a state where it is dark inside the air-cleaning target room; and an operation control unit () that controls an operation of an air-cleaning function by using determination results of the first determination unit () and the second determination unit ().

Air-cleaning device

An uttered utterance text that is a high priority text to be reported to a user is uttered reliably. The air purifier () includes an utterance text extraction unit () that extracts an utterance text associated with an apparatus state and an utterance control unit () that causes the utterance text extracted by the utterance text extraction unit () to be uttered in descending order of priorities assigned to categories including the utterance text according to one of the priorities that is assigned to one of the categories that includes the utterance text.

Growing community of inventors

Sakai, Japan

Takahide Fujii