The vdr system is a recording device which will records data from on board sensors and devices. For instance radar, nav instruments and so on and then compresses this info into a single stream that is sent to the alleged FRM or final documenting medium.
The recording process is usually supervised by bridge group to ensure that pretty much all relevant data is saved correctly. In this manner the ship’s safety and integrity is certainly protected.
VOYAGE DATA RECORDERS SECURITY AND DIGITAL FORENSICS
The VDR is a laptop which is equipped of immediately preserving and recording data from on board devices and sensors. This can range from the ship’s navigational appliances, weather radio station and audio monitoring devices.
It is also able to record facts from other types of on-ship equipment like the EPIRB or the ships’ connection systems. These data are processed and kept within the laptop before being delivered to the apparent FRM or final record medium, which is an commercial grade pc that welcomes data via all onboard sensors.
During an occurrence the data via various what is the purpose of a data audit sources is normally fed in the computer that then collects it and saves it for a period of at least 12 hours before it is overwritten. This means that when there is an accident and the crew promotes the save button it will be possible with respect to the crew to find the proof of the collision, enabling them to get on with the rescue surgical procedures.
It is recommended that the saving of VDR/S-VDR info should be performed during unexpected emergency drills, therefore the fact that bridge staff becomes acquainted with the procedure of the accessories. It is also advised that the vessel’s safety management should contain a section means save your data for securing of data in the event of an accident.