In the present invention, a processor executes the following processes: an acquisition process for acquiring a series of chronological data items regarding a marine vessel sailing to a destination port within a subject sea region, such data indicating times and chronological positions of the marine vessel until arrival in the destination port; and an identification process for identifying, as the position of the marine vessel farthest from the subject sea region, a position according to the oldest chronological data item amongst the chronological data items according to which the marine vessel can enter the subject sea region within a predicted time period, from among the series of chronological data items, such identification being made on the basis of the predicted time period, two consecutive items of chronological data in the series of chronological data items acquired by the acquisition process, and an arrival time indicated by the chronological data item for when the marine vessel is located at the destination port, from among the series of chronological data.
特定装置および特定方法
2017-12-06
Patent
Electronic Resource
Japanese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES |