Light Intensity Monitoring and Automation of Street Light Control

Abstract : The main goal of this project is to implement an auto-intensity control of the LED based street light system that uses solar energy to conserve the electrical power on the streetlight busing Raspberry Pi board. As the traffic decreases slowly in late night hours, the intensity is reduced progressively till morning to save energy, and thus, the street lights remain switched-on at the dusk, and then switch off at the dawn, automatically. The process repeats every day.

 EXISTING SYSTEM :

 The switches of lights are turned ON/OFF physically by the worker in each one of the zones (Fig 2). This prompts the rising of work and time. As it is human activity it is slanted to flaws. Existing strategies like enrolling the protest, killing on/the light physically is monotonous and requires work. The new methodology customized ON/OFF and blame acknowledgment without human mediation is less requesting when stood out from the present Framework.

 DISADVANTAGE :

 ? Performance is low a direct result of l tasks and controls. ? Cannot screen the road light from remote spots, physical intercession is required at each purpose of time. ? Wastage of Power ? Expensive process. ? Time Consuming and there is no best in class/smart.

 PROPOSED SYSTEM :

 This proposed system uses raspberry Pi board and battery for power supply. In this project, a solar panel is used to charge the battery. A charge controller circuit is used to control the charging. A string of the LED is interfaced to the Raspberry Pi board with the help of a MOSFET device. The intensity control of the LED light is possible by varying the duty cycle from a DC source. A Raspberry Pi board is engaged to provide different intensities at the different times of night using PWM technique. A charge controller is used for protecting the battery from overcharging, overload and deep discharge protection.

 ADVANTAGE :

 ? Automatic Switching of Street lights ? Maintenance Cost Reduction ? Energy Saving ? Reduction of manpower ? Safety and Security ? Longer life and reliability ? Works based on intensity control.