Η μετεξέλιξη του συστήματος NAVTEX

Μπαζίνης, Θεόδωρος

Master Thesis

Author

Μπαζίνης, Θεόδωρος

Date

2026-04

Abstract

The safety of shipping and maritime traffic is a vital component of maritime safety, which is an essential prerequisite for the conduct of global maritime trade. Its purpose is to ensure the protection of human lives, ships, and the environment across all the world’s oceans and sea lanes. A critical element for the protection of maritime activities is the Global Maritime Distress and Safety System (GMDSS), which enables effective communication and response to emergencies at sea, as well as the transmission of hazard warnings. NAVTEX is part of the GMDSS and is an international automated direct-printing service for the dissemination of maritime safety information (MSI), navigational warnings, and meteorological warnings, weather forecasts, and other urgent messages related to ship safety. The information transmitted may concern ships of all sizes and types. NAVTEX plays an essential role in the Global Maritime Distress and Safety System (GMDSS). Despite its great importance and value, the GMDSS has not evolved technologically since its introduction in 1999. This reliance on obsolete technology creates operational challenges, particularly for deck officers who face a high physical and mental workload when using the existing complex and outdated GMDSS equipment. The evolution of maritime applications has led to the creation of the S-100 standard, which aims to digitize maritime information systems and services, enabling the use and exchange of digital data between maritime systems. NAVDAT serves as the “digital channel” through which information structured according to the S-124 standard is received by shipboard systems. The advantages of NAVDAT over the existing NAVTEX system lie in: a. Greater reliability (data encryption). b. Faster transmission speed (approximately 100 times faster than NAVTEX). Higher data capacity and, consequently, the ability to transmit a larger volume of information. c. Ability to support/transmit multimedia files, making the message more accessible, understandable, and immediately actionable. Until now, information via NAVTEX was received as shown in the image on the left, and then the bridge crew would plot the message’s coordinates on the chart. Today, the image is generated automatically and displayed on the electronic map system's screen.

Postgraduate Studies Programme

ΔΠΜΣ στη Διοίκηση στη Ναυτική Επιστήμη και Τεχνολογία

Department

Σχολή Ναυτιλίας και Βιομηχανίας. Τμήμα Ναυτιλιακών Σπουδών

Corporate Department

Σχολή Ναυτικών Δοκίμων

Number of pages

Language

Greek

URI

https://dione.lib.unipi.gr/xmlui/handle/unipi/19235

Collections

Τμήμα Ναυτιλιακών Σπουδών

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Except where otherwise noted, this item's license is described as
Αναφορά Δημιουργού-Όχι Παράγωγα Έργα 3.0 Ελλάδα