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Maritime safety system

  • US 20050118905A1
  • Filed: 05/10/2004
  • Published: 06/02/2005
  • Est. Priority Date: 10/24/2003
  • Status: Abandoned Application
First Claim
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1. A maritime safety system comprising:

  • at least one transmitter unit, each transmitter unit being arranged to transmit successive signals by wireless communication at pseudo random intervals and each transmitter unit having an associated transmitter range;

    a base station arranged to receive said transmitted signals; and

    an alarm device;

    said base station being arranged to cause the alarm device to generate an audible and/or visible alarm when a plurality of successive signals from a transmitter unit are not detected;

    the arrangement being such that when a transmitter unit is disposed a distance from the base station which is greater than the transmission range associated with the transmitter unit and a plurality of successive signals are not detected from the transmitter unit, an audible and/or visible alarm is generated.

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