Voyage Data Recorder

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VOYAGE DATA RECORDER
VDR is a data recording system designed for all vessels required to comply with IMO international convention SOLAS. It collects data from various sensors on board the vessel. It then digitizes, compresses and stores this information in an externally mounted protective storage unit. Protective storage unit is temper proof unit designed to withstand the extreme shock, impact, pressure and heat which could be associated with a marine incident.

         The protective storage unit may be in a retrievable fixed unit or free float unit when the ship meets in a marine accident. The last 12 hours of stored data in the protected unit can be recovered and replayed by the authorities or ship owners for incident investigation. Although the primary purpose of VDR is for an accident investigation however there can be other uses of recorded data for preventive maintenance.
       Simplified voyage data recorder (S-VDR) as defined by the requirement of IMO performance standard MSC 163(78) is a lower cost simplified version VDR for smaller ships with only basic ship's data recorder.

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