Energy efficient and eco-friendly street lighting

The demand of electricity increases day by day. So energy saving plays a vital role in present scenario. The proposed system aims to save the power in street lighting system because from evening time to morning time the street lights will always ON condition even if there is no vehicle movement. This leads to more energy consumption. In order to reduce the power consumption the street lamps are turned ON only if the vehicle movement is sensed and its brightness is adjusted based on the vehicle movement. IR sensor is used for motion detection in the street. LDR is used for detecting the lighting condition whether day time or night time. Our proposed system also uses dual switching for supplying power to the lamp based on power availability either from solar power or external power supply. Relay is used for switching purpose between these two power sources. The control signal for relay is given by the microcontroller PIC16F77A. Whenever the failure of lamp is detected the information in the form of SMS will be send to the electrician by using GSM module so that it will be easy to repair the lamp.