5. REVIEW ON SMART STREET LIGHT FOR ENERGY CONSERVATION

Due to their traditional control systems, which automatically turn on and off using timers or light dependant resi stors, street lights consume a significant amount of electric energy (LDR). Furthermore, such saving alternative, resulting in a massive To address such difficulties, a green and smart street lighting system is required, especial ly with the rise of smart cities. Therefore, this project aims to design a smart and green street lighti ng system (SG Street-LS) for saving energy and utilizing renewable energy sources efficiently. The proposed system composes powerful ideas and concept to smoothly and efficiently control the operation of street lightings based on the sunlight availability and the motion detection by exploiting Arduinobased controllers. It also utilizes low power LEDs that supplied from solar panels to replace the conventional high-power lights. there are two conditions to be satisfied: LDR sensor detects lower level of ligh ts intensity (darkness situations), and PIR motion sensor detects the presence of an object in the street (vehicle/human). Otherwise, the street’s lights will be switched OFF.