Date of Publication :30th November 2017

Abstract: This paper presents the development of an energy Controller in a Building Automatic system, based on the availability of natural light and thermal comfort. The system consists of an energy conservation circuit which helps in reducing the energy consumption of household appliances such as fans and lights. This circuit includes an occupancy level detector, environmental thermal comfort temperature level detectors and illumination detector. The PIR sensors are used for the occupancy detection. A pair of temperature sensors is used to detect thermal comfort temperature and Light dependent resistors are used to detect illumination. These sensor outputs are fed to a Microcontroller. The Microcontroller has the task of controlling the lights and fans according to ANSI/ASHRAE Standard 55.

Reference :