抄録
In this paper, the authors present a shared resource platform unifying the tracking information of large vessels and small ships by a database system in order to use it practically and freely for the common purpose. In recent years, the use of the AIS for providing information of a vessel with unique identification, position, course and speed has spread and it makes possible to share the states among vessels at the same time with ease. Besides the monitoring of vessels such that the primary advantage of using AIS, the secondary application has been investigated by restoring information in database. For example, the time series analysis of tracking data has been implemented in the maritime transportation engineering. However, the legal obligation of loading AIS is only limited for the large vessels. Because of that, the recognition of motions of small ships come a large problem in common. Therefore the authors have developed an ubiquitous navigation system for the small ships by correcting position, course and speed through 3G network and began to apply it to some small fishing boats and ferries. In our future, the present technique is going to apply for gathering AIS information of large vessels and small ships which individually corrected now and hope to growth it to the standard platform for sharing resources.
