DESIGN OF AN AUTOMATIC AIR CONDITIONING CONTROL SYSTEM USING PIR MOTION SENSOR

ABSTRACT Considering the growing demand for energy and the need for energy-efficient solutions, there is a constant search for smarter and more sustainable ways to reduce power consumption. The HVAC (Heating, Ventilation, and Air Conditioning) systems in buildings are among the largest consumers of energy. With the global emphasis on reducing energy waste and optimizing comfort, this project focuses on the design and construction of an automatic air conditioning control system using a Passive Infrared (PIR) motion sensor. The proposal aims to address energy inefficiency by automating air conditioning units based on human presence. The system is equipped with a PIR motion sensor, which detects the presence or absence of individuals within a room. When motion is detected, the air conditioner is turned on, and when no motion is detected for a predefined period, the system automatically switches off the unit. The integration of this system with a temperature sensor ensures that the room maintains optimal comfort while minimizing energy consumption. The automatic air conditioning control system is a highly relevant and effective solution for residential, commercial, and office spaces where unnecessary energy consumption can be minimized without compromising on comfort. This system also presents an intelligent way to reduce electricity costs and contribute to energy conservation.