WIRELESS DEVICE POSITION MEASURING METHOD AND A SYSTEM CAPABLE OF IMPROVING THE ACCURACY BY USING A PLURALITY OF POSSIBLE POSITION RANGES

摘要

PURPOSE: A wireless device position measuring method and a system are provided to measure the position of a wireless device such as an AP exactly, thereby improving the accuracy of user position providing services using the wireless device position.;CONSTITUTION: If an AP(10) is searched(S405), a mobile apparatus(100) produces an RSSI of the AP(S410) and produces own GPS coordinate(S415). Mobile apparatus transmits an MAC address of the AP, the RSSI and the GPS coordinate of the AP to an AP position measuring server(200)(S420). The AP position measuring server obtains the coordinate estimation information of the AP in an AP- DB(300)(S425). The AP position measuring server produces the coordinate capable ranges of the AP from the coordinate estimation information of the AP(S430). The AP position measuring server uniformly selects coordinates from the position coordinates included in the coordinate capable ranges of the AP. The AP position measuring server calculates a backup coordinate of the AP(S440), additionally select position coordinates in a section adjacent to the backup coordinate of the AP among the coordinate capable ranges(S445) and calculates a final coordinate(S450).;COPYRIGHT KIPO 2013;[Reference numerals] (100) Mobile apparatus; (200) AP position measuring server; (S405) AP searched?; (S410) Calculate an RSSI of an AP; (S415) Calculate own GPS coordinate; (S420) MAC address and coordinate estimation information of the AP(RSSI of the AP and GPS coordinate of the mobile apparatus); (S425) Coordinate estimation information of the AP; (S430) Produce the coordinate capable ranges of the AP from the coordinate estimation information of the AP; (S435) Uniformly select a part of position coordinates in the coordinate capable ranges of the AP; (S440) Calculate a backup coordinate of the AP by averaging the selected position coordinates; (S445) Additionally select position coordinates in a section adjacent to the backup coordinate of the AP among the coordinate capable ranges of the AP; (S450) Calculate a final coordinate of the AP by averaging the selected position coordinates in S435/S445; (S455) Update the final coordinate of the AP; (S460) Add coordinate estimation information of the AP