Location tracking system and method of wireless device using wireless LAN access point

摘要

Provided are real time location tracking system and method of a wireless device using a wireless LAN AP, the system and method include measuring intensities of APs that are currently detected by the wireless device of which location is to be estimated, collecting ADD, constructing RDLE including locations, a list of APs corresponding to the locations, signal intensities of the APs, and reliabilities of the APs, storing the RDLE, comparing the RDLE with the ADD, and estimating the location of the wireless device, which realizes seamless location tracking technology indoors and outdoors, thereby providing a variety of location tracking services.

主权项

1. A reference data for location estimation (RDLE) construction method for location tracking of a wireless device, the method comprising:
receiving, from the wireless device, access point (AP) scan data including a list of APs and signal intensities of the APs, and locations where the AP scan data is measured; calculating reliabilities of the AP scan data for each of the APs at each of the locations; and storing the RDLE including the calculated reliabilities, the AP scan data, and the locations that correspond to each other, wherein a calculated value of the reliability of a detected AP, when a distribution of locations of the detected AP exceeds a predetermined distance, is lower than when the distribution is within the predetermined distance.