The VDR (Voyage Data Recorder), is the maritime counterpart to the black boxes used by airlines. The system is typically two-parts that include 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 http://www.digitaldealdataroom.info/what-is-the-purpose-of-a-data-audit/ used to capture incidents of navigation, but it can also provide valuable data to analyze damage from heavy weather and monitoring performance as well as crew training.
Up-grading
Many ships equipped with VDR/SVDR equipment comply with the minimum requirements of regulatory compliance However, members are encouraged to think about using the equipment to investigate incidents as well as preventive maintenance and bridge team training, as well as for recording near misses. In addition, there are packages available that can significantly extend the amount of time that VDR data is accessible from the current minimum of 12 hours and a decision needs to be made about whether or not to upgrade to this.
The system is based on an industrial-grade computer that can perform several functions, including processing and encoding data received from sensors. The capsule is designed to withstand any disaster and keep the data. The VDR system is made up of the data collection device that is located on the bridge as also a dedicated power supply and interface unit, and backup batteries. The unit gathers data from all sources integrated such as microphones that record bridge audio, and sends it to the Concentrator, where a series of NMEA 0183 sentences are interpreted and encoded for transmission to the final recorded medium.
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