The vdr system is a recording device which will records data from on board sensors and devices. This includes radar, navigation instruments and so on and then compresses this information into a single stream that is transmitted to the so-called FRM or perhaps final documenting medium.

It process can be supervised by bridge team to ensure that all relevant info is saved correctly. In this way the ship’s safety and integrity is usually protected.


The VDR is a laptop which is equipped of immediately preserving and recording info from on side devices and sensors. This can range from the ship’s navigational appliances, weather stop and acoustic monitoring products.

It is also in a position to record information from other types of onboard equipment including the EPIRB as well as ships’ conversation systems. These data are highly processed and kept within the pc before being delivered to the apparent FRM or perhaps final record medium, which is an commercial grade pc that accepts data by all note of sensors.

During an event the data via various sources is certainly fed in the computer that then gathers it and saves this for a period of at least 12 hours just before it is overwritten. This means that if there is an accident as well as the crew shoves the save switch it will be possible intended for the team to find the proof of the crash, enabling these to get on with the rescue procedures.

It is recommended that the saving of VDR/S-VDR data should be performed during emergency drills, hence the fact that the bridge workforce becomes familiar with the procedure of the equipment. It is also recommended that the vessel’s safety management should include a section on how to save the data for safe-guarding of evidence in the event associated with an accident.