Automation of navigational Records

In order to find out the cause of the accident after the ship's maritime accident, learn from it, take precautionary measures, the original manual record of seamen's nautical logs, car bell records, etc., is commonly known as the ship "black box" navigation data recorder (Voyage data Recorder,VDR) instead. VDR system consists of host, sensor, data memory, special standby power supply and playback system. There is a vdr on the ship, which is greatly beneficial to the cause analysis of maritime accidents.