Design and implementation of street light control using FM technology

摘要

Street lighting is an indispensable part of a city’s infrastructure, the main function of which is to illuminate the city’s streets during the dark hours of the day. It is important for the public and city governance to guarantee switching ON/OFF the street lights. The main consideration for computing this system is to achieve optimum utilization and reduce wastage of power. The objective of this project is to provide a reliable system for controlling a large number of street lights from a central location through FM broadcast with highest reliability. The system developed is aimed at introducing more systematic and rational thinking in a way which is both technically feasible and economical. The project involves two stages namely Communication technology and Power switching arrangement. This project includes transmission of coded DTMF signals to the FM transmitter through wireless technology by using echo coupler for controlling street lights. Any of existing FM stations can be used for transmitting the coded DTMF signal.