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Device and process for entering or leaving an area in a controlled manner

  • US 7,170,406 B2
  • Filed: 09/14/2004
  • Issued: 01/30/2007
  • Est. Priority Date: 10/15/2003
  • Status: Active Grant
First Claim
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1. A device enabling persons or mobile objects to enter or leave an area in a controlled manner, the device comprising:

  • signal transmitters fastened respectively to persons or mobile objects, said transmitters sending or triggering a code related to a person or mobile objects;

    plural position marks at each of the entrances and at each of the exits of the area, said plural position marks providing a position code and a direction code for the passage by an entrance or an exit;

    a receiving means for receiving the code of the signal transmitters combined with the position and direction code; and

    a computing and evaluating unit connected with the receiving means and designed to generate a topology for persons or mobile objects to enter or leave the area.

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