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System and method for accurately computing the position of wireless devices inside high-rise buildings

  • US 20040258013A1
  • Filed: 06/04/2004
  • Published: 12/23/2004
  • Est. Priority Date: 06/06/2003
  • Status: Active Grant
First Claim
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1. A system for deployment within a three-dimensional structure having multiple levels, the system comprising:

  • a plurality of wireless routers of a wireless ad-hoc multi-hopping and peer-to-peer communication network, adapted for deployment at respective locations on the multiple levels of the structure;

    a plurality of mobile wireless terminals of the wireless ad-hoc multi-hopping and peer-to-peer communication network, adapted for mobile deployment in the structure;

    a controller;

    at least one access point, adapted to provide the wireless routers and mobile wireless terminals communication access to the controller;

    each of the mobile wireless terminals being adapted to exchange signals with any of the routers within its broadcast range and, based on those signals, being adapted to determine its respective location in the structure and to provide location data to the controller via at least one said wireless router and said at least one access point; and

    the controller being adapted to access a database including structure layout data pertaining to the structure and, based on the received location data and structure layout data, to generate information representing the respective locations of the mobile wireless terminals in the structure.

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