Lighting System Based on the Human Presence for Daily Applications

Abstract

The scope of this project is to use embedded systems to automate light switching and light adjustment based on human presence. Therefore, this system can be implemented in any closed place to control the light status and intensity. This system will detect the human presence in a closed workplace by counting the number of humans inside the place. The counting process will be applied by using two distance sensors in each door. The triggering of the two sensors will specify if the human is going in or going out. After detecting human presence, the light intensity will be adjusted according to the light intensity in the place. Light intensity will be adjusted automatically either using a variable resistor and stepper motor or using fixed voltage lines with different values of resistance for each one, which will give different light intensities to each line. Furthermore, this system is able to be controlled manually through an Android app.