Title:
INDOOR POSITIONING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/218747
Kind Code:
A1
Abstract:
Provided in the present invention are an indoor positioning method and system, the positioning method comprising: S1. a receiving step, receiving a footstep sound vibration signal which is collected by a probe; S2. a detection step, using a SWIM model to detect the footstep sound vibration signal and performing correction; S3. an estimation step, using a PCC algorithm to estimate a time delay; S4. a processing step, determining an accurate target location according to a positioning algorithm. The benefits of the present invention are as follows: the present invention collects footstep sound vibrations during walking by means of a seismic detector to achieve positioning of a person; footstep sound vibrations spread along a floor surface, thus not encountering furniture and like obstacles, which occurs when vibrations spread in the air and which produces multi-path reflection that influences positioning efficiency. In order to achieve accurate positioning, a SWIM model is designed in the present invention to detect footstep sounds and a PCC algorithm is designed to estimate time delays and to perform positioning.
Inventors:
WU KAISHUN (CN)
CHEN WENQIANG (CN)
WANG LU (CN)
GUAN MAONING (CN)
CHEN WENQIANG (CN)
WANG LU (CN)
GUAN MAONING (CN)
Application Number:
PCT/CN2017/092768
Publication Date:
December 06, 2018
Filing Date:
July 13, 2017
Export Citation:
Assignee:
UNIV SHENZHEN (CN)
International Classes:
G01S5/18
Foreign References:
| CN102854494A | 2013-01-02 | |||
| CN106251572A | 2016-12-21 | |||
| CN105527608A | 2016-04-27 | |||
| US20140335894A1 | 2014-11-13 | |||
| US20140062792A1 | 2014-03-06 |
Other References:
CHEN, WENQIANG ET AL.: "FLoc: Device-free Passive Indoor Localization in Complex Environments", IEEE ICC 2017 AD-HOC AND SENSOR NETWORKING SYMPOSIUM., 25 May 2017 (2017-05-25), XP033132923
Attorney, Agent or Firm:
SZ KINDWALF INTELLECTUAL PROPERTY FIRM (CN)
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