Title:
Lighting system and control device
Document Type and Number:
Japanese Patent JP6359828
Kind Code:
B2
Abstract:
In the present invention, each of a plurality of illumination devices has an illuminance sensor. A control device in the present invention controls the light intensity of at least one of the plurality of illumination devices and estimates the position of a subject. The control device periodically varies the light intensity of a device of interest selected from the plurality of illumination devices at a predetermined frequency when the position of the subject is estimated. The control device estimates the position of the subject on the basis of the intensity of a frequency component having a predetermined frequency which is included in the illuminance detected by the illuminance sensors of a plurality of adjacent devices adjacent to the device of interest among the plurality of illumination devices.
Inventors:
Tomomi Asami
Application Number:
JP2013263570A
Publication Date:
July 18, 2018
Filing Date:
December 20, 2013
Export Citation:
Assignee:
Mega Chips Co., Ltd.
International Classes:
G01S17/88; G01S17/46; H05B37/02
Domestic Patent References:
| JP2003227873A | ||||
| JP2011185783A | ||||
| JP2013201074A | ||||
| JP2009222417A | ||||
| JP2013130534A | ||||
| JP2013032955A | ||||
| JP2005030838A | ||||
| JP2009520194A | ||||
| JP10041802A | ||||
| JP2007171143A | ||||
| JP2006038686A | ||||
| JP2012194131A |
Foreign References:
| WO2013158955A1 | ||||
| WO2009133505A1 | ||||
| WO2013068866A1 |
Attorney, Agent or Firm:
Yoshitake Hidetoshi
Takahiro Arita
Takahiro Arita