Method, system and terminal for wide-area acoustic indoor positioning based on RF enhancement
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United States of America Patent
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Nov 7, 2023
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Apr 25, 2023
filing date -
Oct 8, 2022
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Abstract
The present disclosure belongs to technical field of indoor positioning, and discloses a method and system for wide-area acoustic indoor positioning based on RF enhancement, comprising: design of an acoustic signal, using Blackman window function to control the amplitude of acoustic signal entering and leaving channel; a mixed multiple access transmission of the acoustic signal, combining three multiple access schemes of time, space and frequency, assisting a small amount of BLE signals, and constructing a wide-area coverage capability of the acoustic positioning signal; acoustic measurement based on RF enhancement, including TOA estimation of an acoustic signal and area identification based on low-power Bluetooth RSS; robust fusion positioning of an inertial sensor and multi-source measurement, including pedestrian walking speed estimation, multi-source heterogeneous measurement, acoustic measurement compensation and correction, measurement quality evaluation and control.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ZHEJIANG DEQING ZHILU NAVIGATION TECHNOLOGY CO LTD | 313200 ROOM 709 BUILDING 2 NO 611 YUNXIU SOUTH ROAD WUYANG STREET DEQING COUNTY HUZHOU CITY ZHEJIANG PROVINCE HUZHOU CITY ZHEJIANG PROVINCE 313200 |
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- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chen, Ruizhi | Huzhou, CN | 25 | 27 |
Guo, Guangyi | Huzhou, CN | 1 | 0 |
Ye, Feng | Huzhou, CN | 63 | 279 |
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