Development of the Motion Monitoring System of a Ship

Yoon, Hyeon-Kyu; Lee, Gyeong-Joong; Lee, Dong-Kon

Journal of Navigation and Port Research 2008;32(1):15-22.
Published online February 28, 2008.

선박의 운동 운항환경 모니터링 시스템 개발

윤현규, 이경중, 이동곤

Development of the Motion Monitoring System of a Ship

Hyeon-Kyu Yoon, Gyeong-Joong Lee, Dong-Kon Lee

Abstract

A ship in a sea cruises with rolling, pitching, heaving etc because of environmental causes such as wind and wave. Those motions make crews or passengers feel inconvenience and they feel acceleration changes. Therefore, if lateral and vertical accelerations can be measured at a specific position in a ship, it can be known how discomfortable crews or passengers are. The motion monitoring system developed in this paper consists of measuring and communicating part including five accelerometers and gyro and a main computer which acquires measuring data and calculates motion indices. MSI(Motion Sickness Incidence) and MII(Motion Induced Interrupt) are calculated in real time using measured acceleration and angular rate. The validity of the developed system was confirmed through the real ship test of Hannara which is the school ship of Korea Maritime University.

Key Words: Motion environment;Wave;Motion sickness incidence;Motion induced interrupt; Motion monitoring system