VDR (Voyage Data Recorder) is the maritime version of the black box airlines employ. It is typically made up of two parts comprising a data collection unit as well as a deck-mounted protection pod that is designed to resist shock and fire, deep-sea pressure and penetration. It is commonly used to record navigation events, but can also provide useful data for heavy weather damage analysis and monitoring of performance, as well as training for crew members.

Up-grading

Many ships equipped with VDR/SVDR satisfy the minimum regulatory requirements. However, Members are encouraged use the equipment to document near accidents, conduct incident investigations and for preventive maintenance. There are also software that can extend the period during which VDR data will be available beyond the current minimum of 12 hours. A decision must be taken about whether to upgrade the equipment.

The system is built around an industrial http://www.digitaldealdataroom.info/how-to-get-started-with-your-new-ideals-vdr-system/ grade computer that performs a number functions, including processing and encoding data from sensors. The data is then stored inside a capsule built to withstand an incident and provide evidence of what transpired on the vessel. The VDR system is made up of the data collection device that is located on the bridge, as in addition to a dedicated power supply, an interface unit, and backup batteries. The unit collects data from integrated sources including microphones to record bridge audio, and then sends it to a Concentrator which is where a string of NMEA 0183 sentence is processed and then coded to be sent to the final recording media.