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Asset tracking using wireless LAN infrastructure

  • US 7,256,681 B1
  • Filed: 10/20/2000
  • Issued: 08/14/2007
  • Est. Priority Date: 10/20/2000
  • Status: Expired due to Fees
First Claim
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1. An asset tracking system includinga computer network supporting a plurality of wireless links from respective wireless access points of said computer network,a transponder detectable by said wireless access points of said computer network, said transponder including means for transmitting identification information corresponding to said transponder in accordance with a wireless network protocol in response to an interrogation signal from one of the wireless access points of said computer network whereby a wireless access point/wireless device association for said transponder is created and stored in one of said computer network and said transponder,means for resolving location of said transponder based on signals communicating said identification information to wireless access points of said computer network, andmeans for accessing and reporting through said computer network internal network wireless access point/wireless device associations including said wireless access point/wireless device association for said transponder from said wireless access points, said means for accessing and reporting internal access point/wireless device associations including a geographic information system resident on or downloadable to a terminal of said computer network.

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