WIRELESS LOCALIZATION METHOD BASED ON RSSI AT INDOOR ENVIRONMENT AND A RECORDING MEDIUM IN WHICH A PROGRAM FOR THE METHOD IS RECORDED

摘要

PURPOSE: A wireless positioning method based on a distance estimation method of received signal strength using trilateration and a recording medium having a program for performing the same are provided to improve position estimation accuracy. CONSTITUTION: A wireless positioning method based on a distance estimation method of received signal strength using trilateration is as follows. Three estimation distances from three anchor nodes to a blind node are calculated using signal strength received from the anchor nodes, and three actual distances are calculated using the estimation distances(S14). The volume of a tetrahedron formed by the anchor nodes and the blind node is estimated using the estimation and actual distances(S18). The errors of the estimation distances are corrected. The estimation position of the blind node is calculated using the corrected estimation distances(S22).