| 摘要 |
<p>The present invention relates to a lighting control system which can control turning on and off of the light by varying a reaching area of ultrasonic waves or a detecting area of ultrasonic waves used to check a person after a lighting apparatus is installed. A conventional lighting control system comprises: a lighting member (100) for emitting light; a human body checking member (200) for recognizing a person; and a control member (300) for controlling turning on and off of the light. The human body checking member (200) includes: an ultrasonic wave transmitting unit (210) for generating ultrasonic waves, and transmitting the same through a transmitting antenna (211); a reflected wave sensing unit (220) for receiving the ultrasonic waves reflected on a Doppler sensor (221) when the ultrasonic waves, generated from the ultrasonic wave transmitting unit (210), are reflected; and a reflected wave blocking unit (230) in which a lower portion thereof is opened to allow the reflected waves to enter while being located to cover the Doppler sensor (221), and a side wall (231) for blocking the entered reflected waves extends downward. The control member (300) includes: a movement checking unit (310) for checking the presence of a human based on the reflected waves; and a lighting unit (330) for turning on a lighting when a turn-on signal is generated, and turning off the lighting when a turn-off signal is generated in the movement checking unit (310). The side wall (231) of the reflected wave blocking unit (230) includes: a through hole (238) through which the reflected waves pass; and a blocking plate (239) for adjusting the opened location and the width of the through hole (238) while moving in a sliding manner.</p> |
