Hands-on with Hermes@Postgres MOD

Marine environment is very important in our society with implications in economy and natural preservation. Marine accidents that happen from time to time cost high amount of money to the involved parties and, more important, incalculable damage to the ecosystem. Unfortunately, there is lack of monitoring vessels at sea for conforming to the international marine safety regulations. To address this issue, the Automatic Identification System (AIS) had been made mandatory equipment for commercial and fishing vessels (above a threshold length). A vessel’s AIS transceiver gathers data from onboard sensors like GPS and compass and broadcasts it publicly so that other vessels at sea or base stations at shore are aware of the position (latitude/longitude) as well as other trip-oriented information of the vessel under consideration. This chapter presents a showcase on a real AIS dataset and exploits the capabilities of Hermes MOD engine to efficiently process this kind of data.