公开(公告)号：US20210255270A1

公开(公告)日：2021-08-19

申请号：US17041988

申请日：2019-03-08

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Ayano KANEDA ,  Kohtaro MATSUMURO ,  Hiroshi NOGUCHI

IPC: G01S1/68 ,  G01S5/02 ,  H04W4/029 ,  H04W4/024 ,  H04W4/33

Abstract: The present application relates to correction of position data used in a position information collection system, in which measurement points correspond to position data of a mobile body at respective time points and a movement path of the mobile body connects the measurement points in a time series. When the position data produces a movement path of the mobile body which passes through a not-enterable area, the position data is corrected such that the movement path of the mobile body circumvents the not-enterable area without reducing positioning accuracy, by performing position correction operations which include: determining a crossing status with regard to how the movement path crosses the not-enterable area; counting a number of the measurement points within the not-enterable area; and correcting the position data such that the movement path circumvents the not-enterable area.