Implementation of Automatic Power Saving System

The Electricity price and demand for power is predicted to increase exponentially in the next several years. In fact, the world's demand for power is increasing faster than the demand that can be met. Consequently, industries, homes, and businesses are already taking power saving measures to save money and to become more eco-friendly. Majority of the time, when leaving a room, people forget to turn off the lights and fans which lead to energy wastage. An automated power-saving system is suggested as a solution to prevent this by using the concept of counter. Based on the number of persons inside the room, the lights and fans will be switched on and off automatically. The count will be incremented by one every time when someone enters the room. Similarly, the count will be decremented by one when someone leaves the room. Therefore, when the count is greater than or equal to one, it indicates that there are some people inside the room, so the light and fan will remain on. When the count decreases to zero, it indicates that there is no one inside the room, so all the lights and the fan will be turned off automatically. In addition to this, an android application is developed which provides graphical comparison of performance of the prototype and provide controlling of appliances from the app. As a result, this prototype can cut down power wastage in spaces where people frequently forget to turn off the appliances.