Automatic Control for Ship Collision A voidance Support System

Im, Nam-Kyun

Journal of Navigation and Port Research 2003;27(4):375-381.
Published online September 30, 2003.

선박충돌회피지원 시스템을 위한 자동제어

임남균

Automatic Control for Ship Collision A voidance Support System

Nam-Kyun Im

Abstract

The studies on automatic ship collision avoidance system, which have been carried out last 10 years, are facing on new Situation due to newly developed high technology such as computer and other information system. It was almost impossible to make it used in real navigation 3-4 years ago because of the absence of the tool to get other ship’s information, however recently developed technology suggests new possibility. This study is carried out to develop the algorithm of automatic ship collision support system. The NOMOTO ship’s mathematic model is adopted in simulation for ist simplicity. The fuzzy reason rules are used for course-keeping system and for the calculation of Collision Risk using TCPA/DCPA. Moreover encounter type between two ships is analyzed based on Regulations for Preventing Collisions at Sea and collision avoidance action is suggested. Some situations are simulated to verity the developed algorithm and appropriate avoidance action is shown in the simulation.

Key Words: ship automatic collision avoidance;fuzzy rule;TCS(track control system);hip manoeuvring;automatic control