Patent ID: 7683835

Claim:
A method for locating a wireless device, comprising: for each access point of a plurality of access points: receiving, at a managing device, an indication of a strength of a signal received by a wireless device from the access point; and calculating, at the managing device, a distance between the wireless device and the access point using at least the indication of the strength of the signal; and determining, at the managing device, a probable location of the wireless device using at least each of the calculated distances, the determining comprising: determining a plurality of polygons defined by the wireless device and the plurality of access points; and calculating a weighted center of mass of each polygon of the plurality of polygons, the weighted center of mass of each polygon determined using an assigned weight for a vertex of the polygon; wherein calculating the weighted center of mass comprises using at least a sum of the indications of the strength of the signals received at the managing device.