Sharp Kabushiki Kaisha Corporation

Daisuke Moriuchi

Takahide Fujii

Akihiro Okazaki

Shintaro Nomura

Katsushi Fujii

An air purifier () includes a detection unit () and a control unit (). The detection unit () periodically detects environment information. The environment information indicates information relating to an environment around the air purifier (). The control unit () determines whether or not the environment information satisfies a specific condition a plurality of times during the specific time period (Ts) corresponding to an event within a prescribed period (Ta). In a case where the control unit () determines that the environment information satisfies the specific condition a plurality of times, the control unit switches a mode from a learning mode to an implementation mode. In the implementation mode, in a case where the environment information meets a trigger during the specific time period, the control unit () performs event operational control.

Air purifier and control method for air purifier utilizing a control unit to switch a mode from a learning mode to an implementation mode

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

Daisuke Moriuchi