Wi-Fi 시스템에서 접속 지점 위치 추정 방법 및 장치
우제르, 최완식, 김도현, 윤성조, 박상준, 지명인, 김동규, 조영수
- 8787930 (2014.07.22)
- A method and apparatus for estimating a position of an access point (AP) includes (a) measuring a strength of a signal, transmitted by the AP, at three or more measurement points (MPs), (b) selecting an imaginary attenuation factor, (c) calculating a range between the AP and each of the MPs on the basis of the imaginary attenuation factor and a strength of a signal measured at the MP, (d) calculating an intersecting point of ranging circles in each of which a position of the MP is a center and the range between the MP and the AP is a radius, (e) calculating a best intersecting point from among a plurality of the intersecting points obtained by repeating the steps (c) and (d) while changing the imaginary attenuation factor, and (f) estimating the best intersecting point as the position of the AP.
- KSP 제안 키워드
- Access point, Measurement points, WI-Fi, attenuation factor