ENERGY SAVING LIGHTING SYSTEM OF UNDERGROUND PARKING LOT

摘要

PURPOSE: An energy saving lighting system of an underground parking lot capable of controlling brightness according to the movement of an object is provided to supply constant DC to an LED by using a power factor compensation circuit and a constant current circuit. CONSTITUTION: A radar motion sensor senses the movement of a human or a vehicle. A mobile communication transmitter(12) transmits the information sensed by a wireless communication method. A dimming control(22) controls the brightness of a lamp with a dimming method. A control and a receiving part include a power factor compensation circuit(23) and a constant current circuit. A lighting part includes an LED lamp. [Reference numerals] (11) Motion sensor; (12) Mobile communication transmitter; (21) Mobile communication receiver; (22) Dimming controller; (23) Power factor compensation circuit; (24) Constant current circuit and switch; (30) LED lamp; (AA) Power supply(AC)