AUTOMATIC STREET LIGHT CONTROL AND MONITORING SYSTEM

Street lighting is one of the important parts of a city’s infrastructure where the main function is to illuminate the city’s streets during dark hours of the day. Previously, the number of streets in the town and city were less. So, the street lamps were relatively simple but with the development of urbanization, the number of streets increased rapidly with high traffic density. There are several factors needed to be considered in order to design a good street lighting system such as night-time safety for community members and road users, provide public lighting at low cost and the reduction of light pollution. Initially, the street lamps were controlled manually where a control switch is set in each of the street lamps. It is called first generation of the original street light. After that, another method that was been used was optical control method. This method uses high pressure sodium lamp in their system. It can be seen that this method is widely used in the country nowadays. This method operates by setting up an optical control circuit. It lights up automatically at dusk and turns off automatically after dawn in the morning. The system utilizes the latest technology for the sources of light as LED Lamps instead of generally used street lamps such as High Pressure Sodium Lamps, etc. The LED technology is preferred as it offers several advantages over other traditional technologies. The application is designed in such a way that we place light sensors in all street light circuits, which is responsible to switch on and off automatically. Once the lights are switched on current sensors placed at every street light circuits are responsible to report problem status to the centralized system with help of GSM module attached with the circuit The system described can effectively save energy by reducing the power consumption as per requirement. Since this is a sensor based system, so it is self-controlled and automated system. The system is also flexible for any modification or further expansion such as interfacing of new sensors, connecting surveillance camera for the security purpose, etc. This project of Smart Street Light System is a cost effective, practical, eco-friendly and the safest way to save energy.