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Continuous data optimization of moved access points in positioning systems

  • US 20070004428A1
  • Filed: 02/22/2006
  • Published: 01/04/2007
  • Est. Priority Date: 02/22/2005
  • Status: Active Grant
First Claim
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1. In a location-based services system, a method of utilizing WiFi-enabled devices to monitor WiFi access points in a target area to indicate whether a WiFi access point has moved relative to its previously recorded location, the method comprising the acts of:

  • a) a WiFi-enabled device communicating with WiFi access points within range of the WiFi-enabled device so that observed WiFi access points identify themselves;

    b) accessing a reference database to obtain information specifying a recorded location for each observed WiFi access point in the target area;

    c) using the recorded location information for each of the observed WiFi access points in conjunction with predefined rules to infer whether an observed WiFi access point has moved relative to its recorded location;

    d) informing the reference database of the identity of any observed WiFi access point that is inferred to have moved.

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