Amphibious Line following Robot for Product Delivery in Context of Bangladesh

Special types of delivery vehicles can't deliver their products to a specific location because of the terrible traffic congestion. During the heavy rainy season, vehicles can't move properly due to the flooded road. Also, there needs an extra man to deliver the documents or files inside an office or a building to another building of a company. To solve the problem and automate the delivery process, this research proposes an amphibious line following robot that can move in both lands and at a certain level of water. This line following robot reaches its destination by following the path that is predefined as a white line over a black surface. To determine the line IR sensor is used, whose emitter led emits an infrared ray and detector led receives the infrared ray. By a pre-defined threshold value, the robot can sense the line. L293D motor driver controls the speed and direction of the wheel of the vehicle. DC motor is attached along with the wheel of the vehicle for rotation. The system can sense the flooded road through embedded water sensor and activate the propeller function to move like a speedboat. As the proposed robot is an autonomous system, it is free from any direct human involvement. The system is made of a relatively low cost, low power consumption and easy to install.