Alarm system esp. for monitoring crew of small boat - monitors signals of distinctive character radiated from individual miniature transmitters carried by crew members

Each crew member is equipped with a battery powered signal transmitter worn on a wrist or ankle whose output is monitored by a stationary central unit. The signals from all such transmitters are monitored as to variations in amplitude, frequency, timing or other distinctive criteria. Each transmitte...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	STUECKLER, GERD, 8180 TEGERNSEE, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	EQUIPMENT FOR DWELLING OR WORKING UNDER WATER LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS LIFE-SAVING IN WATER MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS PERFORMING OPERATIONS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING
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Beschreibung
Zusammenfassung:	Each crew member is equipped with a battery powered signal transmitter worn on a wrist or ankle whose output is monitored by a stationary central unit. The signals from all such transmitters are monitored as to variations in amplitude, frequency, timing or other distinctive criteria. Each transmitter eithe remits identification pulses w.r.t. its frequency at regular intervals, or sends a corresponding answer message when prompted by a signal from the central unit. USE/ADVANTAGE - Esp. on yachts sailing by night. Fail-safe system ensures recognition of any emergency