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Locality supervision system

  • US 4,660,023 A
  • Filed: 07/25/1984
  • Issued: 04/21/1987
  • Est. Priority Date: 11/26/1982
  • Status: Expired due to Term
First Claim
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1. A protective system for a plurality of sites, like homes, each having local apparatus in communication with corresponding local apparatus in the other of said plurality of sites, said local apparatus at a given site comprising:

  • detector means for sensing an abnormal condition;

    means for generating an identification signal unique to said given site;

    means coupled to said detector means for modifying said identification signal in response to the detection of an abnormal condition;

    transmitter means coupled to said generating means and said modifying means for transmitting a site identification signal to the other sites, said site identification signal being a combination of the identification signal and the modified identification signal;

    site recognition means obtaining said site identification signal from the other sites for identifying each of said plurality of sites from its identification signal;

    determining means coupled to said recognition means for generating an alarm signal in response to a modified identification signal and for associating the abnormal condition with the particular one of said sites where it occurred;

    indicator means coupled to said recognition means and said determining means for displaying the condition of each of said sites; and

    control means for repeatedly initiating at preset intervals a cycle of generating an identification signal for said given site with said generating means, modifying such identifiation signal with said modifying means when an abnormal condition is detected at said given site, transmitting said site identification signal with said transmitter means, obtaining identification signals from others of said sites with said site recognition means, determining an abnormal condition in any of said sites with said determining means, and displaying the condition of each of said sites with said indicator means.

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