Ship automatic identification system (AIS), shipborne voyage data recorder (VDR),
electronic chart and information system (ECDIS are independent
systems, but they are closely connected. Ship automatic
identification system, shipborne voyage data recorder The data
obtained needs to be displayed on the electronic chart and
information system; the ship automatic identification system and
the shipborne voyage data recorder can mutually quote the accuracy
of their data, and their standards need to be consistent.
Therefore, the International Maritime Organization releases ECDIS,
AIS, and VDR. Research, calculation and calibration together. Both
AIS and VDR have irreplaceable complementary functions. AIS ships
can obtain real-time static data of ships installed and using AIS,
such as ship names, call signs, captains, cargo types, and course.
Ship navigation dynamic data such as speed, position, relative
distance, etc.; VDR can save recorded data and restore and
reproduce these data after an accident. The accuracy of the
restoration of the incident and the degree of original data
provided for the analysis of the cause of the accident are
unmatched by traditional methods.
Ship automatic identification system refers to a new type of navigation aid
system used in maritime safety and communication between ship and
shore, and between ship and ship. It is often composed of a VHF
communication machine, a GPS locator, and a communication
controller connected to a shipboard display and sensors, which can
automatically exchange important information such as ship position,
speed, course, ship name, and call sign. While the AIS installed on
the ship sends this information outwards, it also receives
information from other ships within the VHF coverage area, thus
realizing an automatic response. In addition, as an open data
transmission system, it can be connected with radar, ARPA, ECDIS,
VTS and other terminal equipment and the Internet to form a
maritime traffic control and surveillance network. It is an
effective means to obtain traffic information without radar
detection. Effectively reduce ship collision accidents.
