Automatic Lawn Mower using Green Energy Sources

Abstract

An automatic lawn mower is a device or robot that help human to cut grass automatically. It will allow the user to cut their grass with minimal effort. The proposed robotmove on the grass of the garden, within a defined area thereby completes the task automatically. The electrical power required to energies the proposed system is provided from the solar panel. Single-Ended Primary-Inductor Converter (SEPIC)with Maximum Power Point Tracking (MPPT) algorithm and Fuzzy logic controller (FLC) is used at output of solar panel to improve the overall efficiency. The movement or the path of the automatic lawn mower is based on a path planning technique. Sensors are used to provide feedback from obstacles. Every action of the lawn mower is monitored by the PIC microcontroller with the help of the sensor. Unlike other robotic lawn mowers on the market, this design requires no perimeter wires to maintain the robot within the lawn. Through sensor arrangement, the proposed lawn mower avoidsobstacles and humans. A hardware prototype is implemented and successfully tested in the lawn.