VDR (Voyage Data Recorder) is the maritime version of the black box that airlines use. The system is usually two-part in that it is the data-collecting unit, which is connected to a capsule that is deck-mounted designed to withstand fire, deep-sea pressure, shock and penetration. It is used to capture the events of navigation, but can also provide valuable information to analyze damage from heavy weather as well as performance monitoring and crew training.

Up-grading

Many ships equipped with VDR/SVDR meet the minimum regulatory requirements. However, Members are encouraged use the equipment to document near accidents, conduct incident investigations and for preventive maintenance. There are http://www.digitaldealdataroom.info/database-access-control-best-practices also programs which can extend the period during which VDR data is available beyond the minimum of 12 hours. It is important to make a decision made on whether to upgrade.

The system is built around an industrial computer that carries out various functions, including processing and encoding data received from the sensors. The data is stored in a capsule designed to withstand an accident and provide proof of what transpired on the vessel. The VDR system consists of an data collection device situated on the bridge, as along with a separate power supply as well as an interface unit and backup batteries. The unit gathers data from all integrated sources such as microphones that record bridge audio, and then sends it to the Concentrator, where it is processed into a series of NMEA 0183 sentences are read and encoded prior to being transmitted to the final recording medium.