Title:
個室の照明制御装置
Document Type and Number:
Japanese Patent JP6617307
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an in/out detection switch capable of maintaining the lighting state of a lighting fixture reliably, even if there is no motion of the human body in a toilet, or the like, and capable of unlighting at the exit time.SOLUTION: An in/out detection switch 1 installs two types human body detection sensors 20a, 30a outputting signal waveforms of two kinds of different human body detection signal in series, in the direction of entering and leaving from near the doorway, turns a lighting switch element ON by detection of the human body detection sensor 20a thus lighting the lighting fixture, subsequently holds the ON state of the lighting switch element by detection of the human body detection sensor 30a and continues lighting of the lighting fixture, and cancels ON holding state of the lighting switch element by re-detection of the human body detection sensor 20a thus unlighting the lighting fixture.SELECTED DRAWING: Figure 3
Inventors:
Sadao Nakano
Application Number:
JP2018050806A
Publication Date:
December 11, 2019
Filing Date:
March 19, 2018
Export Citation:
Assignee:
Nakano Engineering Co., Ltd.
International Classes:
H05B37/02
Domestic Patent References:
| JP2001223091A | ||||
| JP6230144A |
Attorney, Agent or Firm:
Susumu Ito
Yasushi Hasegawa
Osamu Shinoura
Yasushi Hasegawa
Osamu Shinoura