The VDR (Voyage Data Recorder), is the maritime version of the black box used by airlines. It is typically made up of two parts comprising a data collection device and a deck-mounted protective pod that is designed to withstand shock and fire, deep-sea pressure and penetration. It is used primarily to record incidents during navigation, but it can also provide valuable data for analysis of heavy weather damage and monitoring of performance, as well as crew training.

Up-grading

Many ships with VDR/SVDR meet the minimum requirements of regulatory compliance. However, members are encouraged use the equipment to record near accidents, conduct incident investigations and for preventive maintenance. There are also programs that can extend the time duration during which VDR data will be available beyond the current minimum of 12 hours. A decision must be taken on whether to upgrade.

The system is built around an industrial grade computer that performs many functions, such as processing and encoding data from sensors. The capsule is designed to withstand any kind of accident and to store the data. The major components of the VDR system include a data collection unit, which is situated on the bridge, a separate power source as well as an interface unit and backup batteries. The unit collects all information from http://www.digitaldealdataroom.info/how-to-get-started-with-your-new-ideals-vdr-system integrated sources such as microphones to record bridge audio, and then sends it to a Concentrator where a set of NMEA 0183 sentence is interpreted and then coded to be sent to the final recorded media.