Title:
INDOOR POSITIONING METHOD AND DEVICE BASED ON INERTIAL DATA AND WIRELESS SIGNAL DATA
Document Type and Number:
WIPO Patent Application WO/2022/240013
Kind Code:
A1
Abstract:
An indoor positioning method and device based on inertial data and wireless signal data are disclosed. According to one aspect of the present invention, provided are a positioning device and a control method therefor, the method comprising the steps of: measuring pieces of inertial data by using an inertial measurement unit (IMU); measuring pieces of wireless signal data through communication with a plurality of access points (APs); calculating system noise covariance on the basis of the pieces of inertial data; calculating measurement noise covariance on the basis of the pieces of wireless signal data; and predicting the current position of a terminal by using Kalman filtering in which the system noise covariance and the measurement noise covariance are applied.
Inventors:
YU SEUNG MIN (KR)
KO SANG PIL (KR)
YOU SO YOUNG (KR)
LEE JUN (KR)
AN TAE KI (KR)
KO SANG PIL (KR)
YOU SO YOUNG (KR)
LEE JUN (KR)
AN TAE KI (KR)
Application Number:
PCT/KR2022/005934
Publication Date:
November 17, 2022
Filing Date:
April 26, 2022
Export Citation:
Assignee:
KOREA RAILROAD RES INSTITUTE (KR)
International Classes:
G01S5/02
Foreign References:
| KR102209658B1 | 2021-01-29 | |||
| KR101885845B1 | 2018-08-07 | |||
| KR20210020263A | 2021-02-24 | |||
| CN108919181A | 2018-11-30 | |||
| JP2011102707A | 2011-05-26 | |||
| KR102367403B1 | 2022-02-24 |
Attorney, Agent or Firm:
LEE, Chulhee (KR)
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