Hardware implementation of auto switching and light intensity control of LED lamps

Abstract

This paper presents energy efficient lightingcontrol architecture for street lights. The system utilizes autointensity control technology to be implemented on street lightsto make it a smart street lighting system. The proposed systemconsists of LED Lamps, infrared transmitter and receiver, NE555 timing IC, SPDT relays, PV panel, etc. Intensity of streetlamps is controlled depending upon the movement of vehicleson the road. When any vehicle passes on the road, increases thelight intensity of lamps for a few seconds and automatically setin previous position when a vehicle passes out. Also manpoweris totally eliminated by the use of auto switching of street light.This is the best and cheapest method for saving energy and alsofor possible reducing lighting pollution. The PV system is usedfor charging the batteries, the power of which is used duringthe night and grid source is also used as a backup of our systemwhen sometimes PV Off-Grid goes faulty.