The vdr system is a recording device which records data from aboard sensors and devices. This includes radar, map-reading instruments and so on and then compresses this info into a single stream that is sent to the alleged FRM or final saving medium.
The recording process is supervised by bridge workforce to ensure that almost all relevant data is documented correctly. In this way the ship’s safety and integrity is normally protected.
TRIP DATA RECORDER SECURITY AND DIGITAL FORENSICS
The VDR is a computer which is suitable of instantly preserving and recording data from on board devices and sensors. This can include the ship’s navigational devices, weather train station and acoustic monitoring products.
It is also allowed to record data from other types of on-ship equipment like the EPIRB or the ships’ communication systems. These info are prepared and stored within the computer before being sent to the alleged FRM or perhaps final record medium, which is an professional grade computer that allows data by all onboard sensors.
During an incident the data from various sources is certainly fed in the computer that then collects it and saves this for a amount of at least 12 hours just before it is overwritten. This means that if there is an accident and the crew catapults the save key it will be possible for the team to find the proof of the mishap, enabling these to get on with the rescue functions.
It is recommended that the saving of VDR/S-VDR data should be practised during crisis drills, thus http://www.digitaldealdataroom.info/what-is-the-purpose-of-a-data-audit which the bridge team becomes familiar with the procedure of the hardware. It is also recommended that the vessel’s safety management should include a section to be able to save the information for acquiring of research in the event of an accident.