Movement Sensing Street Lighting

Abstract

This project aims at reducing energy consumption by minimizing the unnecessary use of energy consumed by street lights. Based on low cost microcontroller, this project incorporates a Solar power module, a Light Emitting Diode (LED) module, Light Detecting Resistors (LDR), and Infrared (IR) Sensors.The street lights are simulated using LED-based lamps, and the intensity of their illumination is varied depending upon the light in the external environment, where the changes are detected using the LDRs. The LEDs will glow the brightest when the environment is the darkest and only when there is movement detected on the street (using the IR sensors), is turned off when the environment is the brightest, and isdim otherwise. As the detected object is on the move, the leading lights are turned on, and the trailing lights are turned off, one-by-one. The solar power unit collects the solar energy during the day, and powers the project system during dark hours. As this system does not keep the street lights glowed continuously, it is an energy efficient system.