| 摘要 |
PROBLEM TO BE SOLVED: To provide an illuminance control system to be easily installed for controlling illuminance depending on the status of persons in a room. SOLUTION: When intermittently receiving a signal from a portable radio 2, illuminations 1a, 1b each checks RSSI to control illuminance depending on the RSSI. Thus, when the illumination 1a exists near a person who carries the portable radio 2, the RSSI of the illumination 1a receiving the signal from the portable radio 2 is high and the RSSI of the illumination 1b installed distant therefrom is low. So, the illuminance of the illumination 1a is set to be high, and the illuminance of the illumination 1b is set to be low. COPYRIGHT: (C)2009,JPO&INPIT
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