Title:
人感センサおよび照明システム
Document Type and Number:
Japanese Patent JP7045913
Kind Code:
B2
Abstract:
To provide a human sensor and a lighting system with light source and reduced power consumption.SOLUTION: The human sensor 1 includes a detection element 11, a detection processing unit 12 that outputs a detection notification signal when the detection element 11 detects a person, a constant voltage circuit 14 that outputs a constant driving voltage to the detection processing unit 12 when receiving power supply from a controller 2 via a two-wire signal line Ls, a voltage drop circuit 15 that drops the line voltage of the signal line Ls when the detection notification signal is input from the detection processing unit 12, an LED 17, and a lighting control circuit 16 that turns on the LED 17 while the line voltage of the signal line Ls drops to a second voltage due to the voltage drop circuit 15, and turns off the LED 17 while the line voltage of the signal line Ls is maintained at a first voltage.SELECTED DRAWING: Figure 3
Inventors:
Hidemitsu Shimamoto
Tatsuto Kobayashi
Yasuto Tanaka
Toshihisa Inada
Nohiro Ashizaki
Koji Shibata
Tatsuto Kobayashi
Yasuto Tanaka
Toshihisa Inada
Nohiro Ashizaki
Koji Shibata
Application Number:
JP2018078936A
Publication Date:
April 01, 2022
Filing Date:
April 17, 2018
Export Citation:
Assignee:
Mitsubishi Electric Corporation
Mitsubishi Electric Lighting Co., Ltd.
Mitsubishi Electric Lighting Co., Ltd.
International Classes:
H05B47/115; H04Q9/00
Domestic Patent References:
| JP2291795A | ||||
| JP2012112743A | ||||
| JP2015079698A | ||||
| JP2012104367A |
Attorney, Agent or Firm:
Kimura Mitsuru
Koji Yashima
Hideki Mie
Koji Yashima
Hideki Mie