Renewable Energy Based Intelligent Lighting and Cooling System Using PIR Sensor

Abstract

The model is developed for reducing the wastage of electricity due to careless and improper switching in households, schools, colleges and offices etc. It saves energy by maximizing the use of daylight. This is an automatic system which employs solar energy through PV. The system is capable of controlling fans in a room depending upon human thermal radiation. The parameter is measured through sensor and the controlling is done by microcontroller. PIR sensor detects the occupancy in the room. If human is present in the room then microcontroller switch ON the FAN. This model itself consumes very low power and helps in saving a significant amount of energy. The model can be applied to government offices, private firms, residential buildings, schools; colleges etc. so as to avoid the wastage of electricity also reduces our dependence on conventional energy and will help in conserving energy.