Abstract
This paper presents energy efficient lighting control architecture for street lights. The system utilizes auto intensity control technology to be implemented on street lights to make it a smart street lighting system. The proposed system consists of LED Lamps, infrared transmitter and receiver, NE-555 timing IC, SPDT relays, PV panel, etc. Intensity of street lamps is controlled depending upon the movement of vehicles on the road. When any vehicle passes on the road, increases the light intensity of lamps for a few seconds and automatically set in previous position when a vehicle passes out. Also manpower is totally eliminated by the use of auto switching of street light. This is the best and cheapest method for saving energy and also for possible reducing lighting pollution. The PV system is used for charging the batteries, the power of which is used during the night and grid source is also used as a backup of our system when sometimes PV Off-Grid goes faulty.
Highlights
THE main scope of outdoor lighting is the extension of an acceptable human life quality consists of i.e. accessibility of social activities, traffic safety during night, crime prevention and human behavior during dark period of the day
When ON, it operates on its rated power and there is no control to adjust its light intensity according to the availability of traffic on roads
A stable mode is used in transmitter circuit and Mono-stable mode is used for timing delay that depends upon the sensitivity of traffic by a sensor on the road. [6]
Summary
The system combines advanced and traditional controlling features. The proposed system minimizes the energy consumption for the benefit of users and environment friendly. The system comprises of Infrared transmitter, infrared receiver, PV Panel, transformer, NE-555 timing IC, SPDT relays, LED Lamps, rectifier and filter unit, LDR, 7805 voltage regulator, BC 547 transistor
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