Database Concept for Integrated Navigation Information System

Abstract

Navigation infom エ ation is necessary for safe and efficient ship handli ． Ship navigators must pick up manually necessary navigation information from a vast amount of them ． In this paper ， we propose automatic retrieval systems for Japanese nautical charts and sailing directions using an engineering work station (EWS) ， and develop its prototype ． These systems are composed of general purpose database ， unified retrieval algorithm and user − friendly interface ． The database of nautica ！charts retrieval systeln is composed nautical charts attribute data of 781 sheets of Japanese nautical charts in Japan adjacent waters ． When the system operator inputs main

Toward Universalizing Common Skills of Ship Navigators

“…* Sailing: The navigator attempts safe navigation by gathering dynamic information [9] using a lookout, radar, weather map, etc. If the navigator needs some corrections to his course, he must make those.…”

“…* Navigation planning: The navigator decides a route and a course to a destination while gathering static information [9] such as sailing direction, port entry, and other information related to the route.…”

“…There are two kinds of navigational information: dynamic information and static information [8], [9]. Dynamic information changes for short times, according to such factors as target ship speed/course, radar information etc.…”