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METHOD AND DEVICE FOR ESTIMATING AP POSITION USING A MAP OF A WIRELESS LAN RADIO ENVIRONMENT

  • US 20130170383A1
  • Filed: 06/28/2011
  • Published: 07/04/2013
  • Est. Priority Date: 07/08/2010
  • Status: Active Grant
First Claim
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1. An apparatus for estimating an AP position by using a weighted average of signal strengths, comprising:

  • a filtering unit for generating a filtering radiowave map with data selected exclusively for having a common MAC address from collected wireless LAN radiowave environment maps;

    a grid cell division unit for generating a grid radiowave map with arbitrary grid cells from dividing the filtering radiowave map;

    a representative coordinate mapping unit for calculating a centroid of each of the grid cells constituting the grid radiowave map, and mapping said each centroid as a representative coordinate to said each grid cell;

    a representative signal strength mapping unit for calculating representative signal strengths based on data existing in said each grid cell, and mapping each representative signal strength to said each grid cell;

    a weight value sorting unit for sorting out a weight value corresponding to a range covering a received signal strength of the representative signal strength; and

    a position estimation unit for estimating positional information of access points (APs) having a common MAC address based on one or more of the representative coordinate, the representative signal strength, and the weight value.

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