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Method for detecting access to controlled areas and related system

  • US 7,046,990 B2
  • Filed: 12/19/2000
  • Issued: 05/16/2006
  • Est. Priority Date: 12/28/1999
  • Status: Expired due to Term
First Claim
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1. A method of detecting and limiting access of a person to a controlled area, comprising the steps of:

  • assigning to said person a mobile terminal having an identification code associated with said person and providing said person with said mobile terminal;

    configuring said controlled area as a location area of a cellular telecommunications system;

    and characterised by the steps of;

    detecting connections of said mobile terminals of other individuals to said location area by identifying the identification code of each mobile terminal; and

    comparing with said cellular telecommunications system the identification code associated with said person with a list of identification codes authorized to access the controlled area; and

    conditioned to a first result of said comparing, activating an alarm procedure so as to prevent access of said person to said controlled area.

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