INDOOR POSITIONING METHOD AND SYSTEM BASED ON WIRELESS LAN (WLAN) RECEIVED SIGNAL STRENGTH INDICATION (RSSI) VALUE

摘要

Disclosed are indoor positioning method and system based on a WLAN RSSI value using remote monitoring and environmental attenuation in a cell space. The indoor positioning method based on the WLAN RSSI value comprises: a remote monitoring step of generating a signal strength table among Access Points (AP) by collecting signal strength information of peripheral APs from each AP; a position information request step of receiving the identification information and signal strength of the detected AP from a mobile terminal; and a cell determination step of determining a cell including the AP having the most similar pattern as the cell for indicating the present position of the mobile terminal by referring to the signal strength table among the APs and comparing the signal strength pattern of each AP received from the mobile terminal with the signal strength pattern of the peripheral APs of each AP. The present invention simplifies a position estimation process by using environmental attenuation instead of wall attenuation and layer attenuation and applying the same environmental attenuation to the AP and the mobile terminal in the same cell space.