📅  最后修改于: 2023-12-03 14:59:12.452000             🧑  作者: Mango
AIS Class B is a type of Automatic Identification System (AIS) designed for smaller vessels, such as pleasure boats, sailing yachts, and fishing boats. It provides a means for these vessels to broadcast their information to other ships and shore stations, enhancing safety and situational awareness at sea.
AIS Class B devices are often smaller, more affordable, and less power-consuming than Class A devices, making them suitable for use on recreational and non-commercial boats.
Vessel Identification: AIS Class B devices transmit information about the vessel's identity, including its name, MMSI (Maritime Mobile Service Identity) number, and Call Sign.
Position and Speed: The device broadcasts the vessel's latitude, longitude, course over ground (COG), and speed over ground (SOG). This information helps other vessels and shore stations to track and predict its movements.
Vessel Dimensions: AIS Class B also provides details about the vessel's dimensions, such as length, width, and draft. This information is crucial for assessing navigational safety and potential collisions.
Status and Navigation: Class B devices transmit the vessel's navigational status, including underway, at anchor, moored, or restricted maneuverability. It also provides additional information like the destination and ETA (Estimated Time of Arrival).
Safety Messages: AIS Class B can send safety-related messages, such as navigational warnings, meteorological alerts, or distress signals. These messages contribute to the overall safety of the maritime community.
Enhanced Safety: AIS Class B helps vessels to be aware of each other's presence, reducing the risk of collisions and improving overall safety at sea.
Improved Situational Awareness: By receiving real-time information about nearby vessels, their positions, and movements, sailors can make informed decisions to avoid navigational hazards.
Sharing Information: AIS Class B enables vessels to share and receive important information with other ships and shore stations, enhancing collaboration and communication.
AIS Class B is an essential technology that empowers smaller vessels to participate in the AIS network, providing valuable information about their identity, position, and status. By using AIS Class B devices, programmers can contribute to the safety and efficiency of maritime operations.