Simulation research of using PWM to control LED scenario energy-saving system — The case of large underground parking lot: Preparation of papers in two-column format for ISNE 2016

Lighting is closely related to our daily life; for different places, the types of the lighting designs and the energy-saving controls are very different; however, which can determine whether the lighting energy-saving control can succeed or not. The most frequently-used energy-saving methods include turning on/off lamps according to timing, turning on/off lamps by divided loops, using high-efficiency energy-saving lamps and the like; in addition to above methods, are there any other applicable energy-saving methods more energy-saving, safer and more comfortable? The paper takes a large underground parking lot as an example to propose using a dimming LED lamps to substitute for the currently used high-efficiency T5 lamps, and combines which with the sensor of the currently available vehicle searching system by system integration; the paper designs two scenarios, including the normal scenario and the car pick-up scenario; after we simulates the two scenarios, we found the energy-saving efficiency can be further increased to about 83%; therefore, the energy-saving efficiency is very obvious.