Method, system and terminal for wide-area acoustic indoor positioning based on RF enhancement

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United States of America Patent

PATENT NO 11808848
SERIAL NO

18306998

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG DEQING ZHILU NAVIGATION TECHNOLOGY CO LTD313200 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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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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