| 摘要 |
PURPOSE:To turn illumination lamps on or off as a person advances by lighting a corresponding illumination lamp at high illuminance for a fixed period if a low- illuminance detected signal is generated, and further extending the high-illuminance lighting for a fixed period when a human body detected signal is detected. CONSTITUTION:When an illumination lamp 13 is lighted at high illuminance and an illumination lamp 14 is lighted at low illuminance, if a person comes in the human body detection range A of the human body detecting sensor 21 of an on/off device 100, the sensor 21 generates a detected signal (m), if the signal (m) is a certain level or above, a CPU 41 sends a transmission command MX to a timer section 51. The timer section 51 generates a drive signal X and starts counting, and a transmitting section 52 transmits a radio signal RA to a corridor 10. The signal RA is received via a receiving antenna 55, and the received output is applied to the CPU 41. The CPU 41 sends a high-illuminance lighting command SH to a photo-coupler in place of a low-illuminance lighting command SL which it has been sending to the lamp 14, and the timer section 51 concurrently starts counting. The lamp 14 is kept lighted at high illuminance until the timer section 51 is timed up. |
