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Automatic data accuracy maintenance in a Wi-Fi access point location database

  • US 8,805,403 B2
  • Filed: 04/05/2012
  • Issued: 08/12/2014
  • Est. Priority Date: 04/05/2012
  • Status: Expired due to Fees
First Claim
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1. A method of maintaining data accuracy in a Wi-Fi access point location database including a plurality of location entries each for storing location data for a corresponding one of a plurality of access points, the method comprising:

  • receiving a first set of location measurements for a selected access point from a first mobile device;

    determining a trustworthiness value of the first set of location measurements in response to a first comparison between the first set of location measurements and the location data for the selected access point stored in the location database;

    if the trustworthiness value is greater than a trustworthiness threshold, then updating the stored location data for the selected access point in the location database using the first set of location measurements; and

    if the trustworthiness value is not greater than the trustworthiness threshold, then;

    receiving additional sets of location measurements for one or more other access points from the first mobile device;

    performing an area recognition operation for at least some of the additional sets of location measurements provided by the first mobile device during a predetermined time period by comparing the additional sets of location measurements and the location data for the one or more other access points stored in the location database to generate a consistency value; and

    updating the stored location data for the selected access point in the location database using the first set of location measurements if the consistency value is greater than a consistency threshold.

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