Abstract
The berthing is made up of an approach in the restricted water area and final berthing maneuver to full stop. In this paper, the expert system is used to include decision making processes in the berthing.
The expert system was made on the desktop simulator on the Sun-sparc 10 work station combined with the OPS-83 expert system shell. The expert system essentially consists of two independent expert systems which are in charge of planning and control execution respctively. The planning expert system takes not only the ship's maneuverability but also the environmental restrictions to provide the course to go. The control execution system has subcontrol systems such as auto pilot, turning controller, optimal regulator and so forth, and the system chooses the most suitable strategy to follow the planned course or to make the final berthing.
The prototype system for the 150, 000 ton crude oil carrier was built and the knowledges were obtained by authors with simulations under many cases. The simulation results were very satisfactory.
