Development of Real-time Monitoring System against Drifting of Work Vessels due to Large-scale Tsunamis

Abstract

ABSTRACT : To continue the port logistic functions after large-scale tsunamis, the securing of work vessels for elimination of navigation obstacles and emergency restoration of port facilities is indispensable. The judgement of the usability of work vessels at disaster-stricken ports is the cornerstone for formation of work vessel convoys, because these vessels might be drifted. Based on this background, real-time monitoring system against drifting of work vessels was developed by using AIS data. AIS device of independence power supply type for unmanned work vessels was built, and warning system against drifting was developed. In addition, the expansion policy to remote monitoring system during normal operation was indicated.