SAFETY SYSTEM AT SEA FOR ACCURATELY LOCATING A SHIPWRECKED NAVIGATOR

摘要

The invention concerns a safety system on board a ship for facilitating rescue of a person having fallen overboard whereby each navigator on board is equipped with an individual portable radio transmitter apparatus and regular links are established between each apparatus and a centralized monitoring radio device, that is a device for receiving radio signals from each individual portable apparatus (even querying them one by one by radio transmission) and in spotting the absence of any apparatus which would indicate the loss of a navigator overboard, by monitoring the regular reception of radio signals emitted by each apparatus and by detecting any absence of reception from the portable apparatus of a navigator to launch in that case a rescue operation.