公开(公告)号：US20190369205A1

公开(公告)日：2019-12-05

申请号：US16476901

申请日：2017-12-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Taikjin LEE ,  Youngmin JHON ,  Jaehun KIM ,  Boseon YU ,  Beomju SHIN ,  Jaewon BANG

IPC: G01S5/14 ,  G01S5/00 ,  G01S19/01 ,  G01S5/02 ,  H04W88/18 ,  H04W4/029 ,  G01S11/06

Abstract: The present invention relates to wireless localization method and apparatus of high accuracy, and measures strength of at least one signal that is transmitted from at least one fixed node, estimates a relative position of a moving node, generates a change pattern of at least one signal strength according to relative changes in positions of the moving node over a plurality of time points from at least one signal strength and the relative position of the moving node, and estimates an absolute position of the moving node, based on a comparison between the change pattern of the at least one signal strength and a map of a distribution pattern shape of signal strength in a region where the moving node is located. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment but also has almost no change in signal strength over a wide region.