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Patent Searching and Data


Title:
DETERMINING THE LOCATION OF A MOBILE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/138225
Kind Code:
A1
Abstract:
A computer-implemented method of determining a location of a mobile device, the method comprising receiving inertial data generated at the mobile device, the inertial data comprising a plurality of samples taken at different times, segmenting the inertial data into pseudo-independent windows, wherein each pseudo-independent window comprises a plurality of the samples and wherein one or more initial states for each pseudo-independent window are treated as unknown, estimating a change in navigation state over each pseudo-independent window using the samples of inertial data, and summing the changes in the navigation states over the pseudo-independent windows so as to determine the location of the mobile device.

Inventors:
CHEN, Changhao (Oxford University Innovation Limited, Buxton Court3 West Way,Botley, Oxford Oxfordshire OX2 0SZ, OX2 0SZ, GB)
CLARK, Ronald (Oxford University Innovation Limited, Buxton Court3 West Way,Botley, Oxford Oxfordshire OX2 0SZ, OX2 0SZ, GB)
MARKHAM, Andrew (Oxford University Innovation Limited, Buxton Court3 West Way,Botley, Oxford Oxfordshire OX2 0SZ, OX2 0SZ, GB)
TRIGONI, Agathoniki (Oxford University Innovation Limited, Buxton Court3 West Way,Botley, Oxford Oxfordshire OX2 0SZ, OX2 0SZ, GB)
Application Number:
GB2019/050056
Publication Date:
July 18, 2019
Filing Date:
January 10, 2019
Export Citation:
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Assignee:
OXFORD UNIVERSITY INNOVATION LIMITED (Buxton Court, 3 West WayBotley, Oxford Oxfordshire OX2 0SZ, OX2 0SZ, GB)
International Classes:
G01C21/16; G01C21/20; G01C22/00
Foreign References:
CN106643715A2017-05-10
US20130311133A12013-11-21
Other References:
"Serious Games", vol. 11217, 31 December 2017, SPRINGER INTERNATIONAL PUBLISHING, Cham, ISBN: 978-3-642-38979-5, ISSN: 0302-9743, article HANG YAN ET AL: "RIDI: Robust IMU Double Integration : 15th European Conference, Munich, Germany, September 8-14, 2018, Proceedings, Part XIII", pages: 641 - 656, XP055568708, 032682, DOI: 10.1007/978-3-030-01261-8_38
CHANGHAO CHEN ET AL: "IONet: Learning to Cure the Curse of Drift in Inertial Odometry", 30 January 2018 (2018-01-30), Thirty-Second AAAI Conference on Artificial Intelligence, XP055568599, Retrieved from the Internet [retrieved on 20190315]
Attorney, Agent or Firm:
GOSNALL, Toby (100 Hagley Road, EdgbastonBirmingham, West Midlands B16 8QQ, B16 8QQ, GB)
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