Development of an autopilot system for fishing boats

Abstract

Autopilot system is a navigation methodology that can he introduced to local fishing industry in order to improve the productivity. This project was carried out with the purpose of supplying a tow cost autopilot system for local fishermen. In this paper, it addresses the tracking problem for an Autopilot boat using a controller, namely yaw moment (yaw torque control) taking environmental disturbances also into account. A simple slate feedback control law is developed Simulation results are presented in the form of graphical method . Also designing of the mechanical and electronic parts of the system is addressed here. The input and output components of the system and their functionality are described. Further describes the communication methods that used to interface microcontroller to other electronic components like GPS, compass. Also the methods that used to control the output devices like DC motors Requirement of designing a servo controller for rudder movement is a major task of the project Drive mechanism of the rudder and methods used to get feedback is explained I he importance of designing user interface of the system is also addressed. Programming the microcontrollers is done using C language. CSS compiler To snitch between autopilot mode and manual mode two solenoid operated directional control valves are used . it present autopilot system is mounted on a platform and can be used to demonstrate how the system works.