An efficient ILACS control algorithm for intelligent LED indoor lighting system

In this paper, we propose an efficient Indoor Light Automatic Control System (ILACS) control algorithm for intelligent LED indoor lighting systems. The proposed ILACS control algorithm includes elements such as daylight intensity measured through a PIR sensor and an illuminance sensor at lighting style by a defined schedule and occupancy detection. This algorithm controls lighting through a wireless sensor network, and was designed for energy savings. Also, the algorithm controls indoor lighting based on occupancy detection of fine movements using a PIR sensor. Unnecessary lighting intensity control of the window-side and the inside were controlled according to daylight level measurements using the light sensor. In many cases of daylight inflow, the window-side lighting automatically became darker, and in daylight inflow, this occurred less, as the system was designed to be automatically bright. The efficiency validation results confirmed an efficient ILACS control algorithm for intelligent LED indoor lighting systems. The brightness of the indoor lights were employed to maximize the energy savings by controlling the system in real time when entering, in order to utilize external lighting or daylight.