Search results
Results from the WOW.Com Content Network
The AIS standard also envisioned the possible use on SAR aircraft, and included a message (AIS Message 9) for aircraft to report their position. To aid SAR vessels and aircraft in locating people in distress, the specification (IEC 61097-14 Ed 1.0) for an AIS-based SAR transmitter (AIS-SART) was developed by the IEC's TC80 AIS work group.
Data is gathered from in excess of 18,000 AIS equipped volunteer contributors in over 140 countries around the world. [6] Information provided by AIS equipment, such as unique identification, position, course, and speed, is then transferred to the main Marine Traffic servers for display via the website in real time.
Lloyd's List Intelligence (formerly Lloyd's MIU LLC) is an information service dedicated to the global maritime community. It is a sister company of Lloyd's List. [1]Lloyd's List Intelligence is an interactive online service offering detailed vessel movements, real-time AIS positioning, information on ships, companies, ports and casualties as well as credit reports, industry data and analysis ...
An information service is a service to ensure that essential information becomes available in time for onboard navigational decision-making. The information service is provided by broadcasting information at fixed times and intervals or when deemed necessary by the vessel traffic service or at the request of a vessel, and may include for example reports on the position, identity and intentions ...
An AIS-SART is a self-contained radio device used to locate a survival craft or distressed vessel by sending updated position reports using a standard Automatic Identification System (AIS) class-A position report. The position and time synchronization of the AIS-SART are derived from a built in GNSS receiver (e.g. GPS). [1]
AtoNs can be integrated with automatic identification system (AIS). AIS transmitted form an actual aid (buoy, lighthouse etc.) is termed a "real AIS AtoN". [11] If it is impractical to equip the AtoN with an AIS transponder an AIS shore station can be assigned to transmit AIS messages on behalf of the AtoN. This is known as a "synthetic ATON".
Thus the information collected from the two systems, S-AIS and LRIT, are mutually complementary, and S-AIS clearly does not make LRIT superfluous in any manner. Indeed, because of co-channel interference near densely populated or congested sea areas satellites are having a difficult time in detecting AIS from space in those areas.
Port traffic: Traffic volume is heavy, with 260 vessels entering or leaving port every day, [29] and very large numbers of small vessels entering or leaving the fairways at any given time. In the 2006–2010 period the VTS communication service managed 362,000 instances, the navigation assistance service managed 323,000 instances, and the ...