Abstract
Recently, the International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA) has developed VHF data exchange system (VDES). It is recognized as an efficient tool for the usage of the radio spectrum with applied new techniques in information transmission. The authors propose the possibilities of VDES to be integrated with Electronic Chart Display and Information system (ECDIS), performing as a single point for data acquisition and distribution for monitoring and processing in the ECDIS. VDES satellite link component is emphasized as a part which could extend the safety of navigation as well as possible VDES applications for future service. A completely new architecture is proposed to get efficient and reliable data path, especially in ship’s communications. VDES could become a key point in safe and secure communications with both terrestrial and satellite components, resulting in a new area of integration possibilities. The main role of VDES in ship communications could be in critical instances of the ship’s operation as well as distress situations.
Highlights
The VHF data exchange system (VDES) is recognized as the efficient use of radio capabilities, based on the Automatic Identification System (AIS)
After Electronic Chart Display and Information system (ECDIS) implementation on ships, navigation process quality was upgraded, while Global Maritime Distress and Safety System (GMDSS) system was never changed during years
Integration of VDES and GMDSS interfaced with ECDIS could provide a complete image of the vessel’s external communication in one place
Summary
The VDES is recognized as the efficient use of radio capabilities, based on the Automatic Identification System (AIS). One of these possibilities is the visualization of NAVTEX (Navigational Telex) Maritime Safety Information (MSI) reports with details on the electronic chart Another great example of interfacing ECDIS system with peripheral equipment is the integration with the AIS, where ECDIS operator puts all necessary details which are usually entered directly on AIS, and all the information is transmitted immediately over the AIS transceiver. AIS is designed to autonomously provide identification and navigation details for vessels and shore stations at a data rate of 9.6 kbps using two maritime VHF channels. All VDES stations will be identified with a unique number, for example, Maritime Mobile Service Identity (MMSI), as a successor of AIS, offers the aforementioned satellite part of communication, which opens new possibilities of communication for vessels not equipped with regular satellite systems. The benefit of the VDES satellite component is used on vessels outside of terrestrial VHF signal coverage
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