Sea Technology

JUL 2018

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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Page 24 of 44

24 ST | July 2018 N owadays, AIS technology is being used beyond the identification and tracking of ships. This has resulted in the congestion of its channels and degradation of its efficiency. Meanwhile, the need for modernization of the Global Maritime Distress and Safety System (GMDSS) has prompted research and development of new solu- tions for data exchange in the VHF maritime mobile band. The International Telecommunication Union (ITU) proposed possible systems for data transmission, based on the land mobile communication system, Terrestrial Trunked Radio (TETRA), which could be used in the VHF maritime mobile band. The International Association of Marine Aids to Navi- gation and Lighthouse Authorities (IALA) has developed a technological concept, the VHF Data Exchange System (VDES), to solve congestion of AIS channels. The VDES additionally supports the International Maritime Organi- zation's (IMO) strategy implementation plan for e-nav- igation and the modernization of the GMDSS with es- sential digital communications. As part of the improved provision of services to vessels through e-navigation, Maritime Service Portfolios (MSPs) have been identified as the means of providing electronic information in a harmonized way. VHF Maritime Mobile Band A New System to Declutter AIS Channels By Dr. Sanjin Valcic • Dr. Srdan Zuskin • Dr. David Brcic Maritime Service Portfolio Identified Services MSP1 Vessel Traffic Service (VTS) Information Service (IS) MSP2 Navigational Assistance Service (NAS) MSP3 Traffic Organization Service (TOS) MSP4 Local Port Service (LPS) MSP5 Maritime Safety Information Service (MSI) MSP6 Pilotage service MSP7 Tugs Service MSP8 Vessel Shore Reporting MSP9 Telemedical Assistance Service (TMAS) MSP10 Maritime Assistence Service (MAS) MSP11 Nautical Chart Service MSP12 Nautical Publications Service MSP13 Ice Navigation Service MSP14 Meteorological Information Service MSP15 Real-time Hydrographic and Environmental Information Service MSP16 Search and Rescue (SAR) Service Maritime service portfolios.

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