Design of Smart Lighting Control for the Built Environment

The inefficient use of electricity and the forgetting habits of humans related to manual controlling of lights results in wastage of electricity in both residential and commercial sector. The proposed design can get rid of this physical/manual switching and provides the energy-efficient environment. This lighting control design is programmable, cost effective and provides easy installation. It employs AT86C51 microcontroller with IR sensor modules for monitoring and controlling the LED light as per occupancy inside the room. Specifically, the developed design is used to monitor the entry and exit of occupants inside the room. It automatically senses the person’s location and then displays the room occupancy with the glow of LED light. The LED light remains on as long as the person lies in the range of proximity of IR sensor; otherwise, it switches off. Classroom environment is considered as test bed for this analysis. The result analysis shows the effective and efficient usage of lights and thereby causes the energy saving with the rising energy demand. Keil microvision software is used in compiling the code.