Chat Over Automatic Identification System (AIS) Test Results
Abstract
Chat Over AIS (COA) provides a user-friendly Rocket Chat interface which allows users to communicate by text using Automatic Identification System (AIS) message type 6. AIS message type 6 was designed to allow users to send and receive direct messages using their vessels Maritime Mobile Service Identity (MMSI) number. In addition to providing an improved user interface, COA provides re-transmission of a text message if the vessel is not within Radio Frequency (RF) Line of Sight (LOS) range. For example, if a senders vessel is not within LOS of the receiving vessel, then the senders messages are periodically resent until the receiving vessel is within LOS. COA also provides the capability to send GPS messages via text which allows Navy vessels to report their positions to their Maritime Organization Center (MOC) if the vessel does not want to transmit their position to surrounding vessels. COA utilizes an Aide to Navigation (AtoN) which is designed for data transmission and not vessel collision avoidance. Standard Class A or Class B AIS Transponders are designed for collision avoidance and they will automatically report a vessels position. In addition, vessels will be able to automatically send a Manual Report Event into the SeaVision (SV) Website. Adding the event automatically to SV allows MOC operators to see the Manual Report and then act on this information.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 2022
- Accession Number
- AD1168639
Entities
People
- Lynne A. Tablewski
Organizations
- Naval Information Warfare Center Pacific