Patent ID: 8737250
Filing Date: 2014-05-27
Classification: H04W

Abstract:
1. An apparatus for tracking a position of a fixed node, the apparatus comprising: an interface to extract, from a database in response to the occurrence of an event about tracking the position of the fixed node, packet data corresponding to a mobile node associated with the event; and a processor to analyze a received signal strength of the packet data and a position of the mobile node from the packet data, and to track the position of the fixed node using the analysis result, wherein, based on the analysis result, the processor induces a first trend line with respect to a motion of a first mobile node among mobile nodes and extracts a first virtual line that is perpendicular to a gradient of the first trend line and passes a center of the first trend line, induces a second trend line with respect to a motion of a second mobile node among the mobile nodes and extracts a second virtual line that is perpendicular to a gradient of the second trend line and passes a center of the second trend line, and tracks, as the position of the fixed node, an intersecting point of the first virtual line and the second virtual line.