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Networked personal security system

  • US 6,853,302 B2
  • Filed: 10/10/2001
  • Issued: 02/08/2005
  • Est. Priority Date: 10/10/2001
  • Status: Expired due to Fees
First Claim
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1. A security system comprising:

  • a. at least one portable alarm unit having a memory, processor, and transmitter, said transmitter for sending an alert signal upon occurrence of one or more alarm conditions;

    b. a plurality of beacons for generating and transmitting an identifying signal to said portable alarm unit and for receiving and/or processing said alert signal from said portable alarm unit;

    c. said beacons being positioned in an overlapping arrangement in order to provide at least two of said beacons within range of said portable alarm unit, wherein, if said portable alarm unit receives an identifying signal from more than one of said beacons, said processor of said portable alarm unit selectively determines which of said identifying signals to retransmit utilizing the relative strength and/or frequency of each of said identifying signal received by said portable alarm unit.

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