Abstract
There is berthing operation as one of the ship maneuvers requiring advanced technology for ship officers. In the berthing operation, ship officers have to control the ship’s motion taking the influence of external forces into consideration, and get the ship to a shore accurately. When the ship officers maneuver the berthing operation using small crafts, it is difficult to control the crafts’ motion because small crafts are susceptible to external forces such as wind. Ship officers are carried out berthing operation based on their experiences. So, it is necessary to develop a system to support berthing operation that allows the ship officers to maneuver without relying on their experiences. We propose a system consisting of three processes. In the first step, the system plans ship maneuvering from a initial position to a berthing point. In the second step, ship officers maneuver according to the plan. In the third step, the system predicts the future position, course, speed at specific points considering external forces. It notifies ship officers of the course and speed obtained from the prediction. In order to make predictions at specific points, it is necessary to carry out simulations of berthing operation based on maneuvering motion model of small crafts. In our research, we measured maneuvering motion of small crafts in actual seas to aim a support system of berthing operation. Our objective is to model maneuvering motion of small crafts simply in berthing operation using measured results in actual seas and to verify problems of support system of berthing operation.
