Street Lamp Control through an Infrared Sensor

In current electrical power distribution system many components are operating all the time and are liable to huge power loss without notice of users. One such identified appliances are street lamps or highway lamps which burn throughout night with same intensity. This can increases the consumption of fuel in a power plant. Hence, saving of power though such loads will gives the positive impact on power system economics by saving the fuel. In this paper, the microcontroller based proto type autamatic street lamp control mechamsis is designed and developed for power saving. It consists of infrared sensor, transformers, passive rectifier, pulse width modulation strategy, photodiodes along with controller. The presented hardware is tested in laboratory and its performance is obtained by two ways. One is the intensity of lamp is minimized and second the lamps are completely switched off when there is no objects comes in between road. This prototype model can become a tool for real time application.