Title:
AUDIO-BASED POSITIONING AND OBJECT FINDING METHOD, SYSTEM AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/007352
Kind Code:
A1
Abstract:
Disclosed are an audio-based positioning and object finding method, system and device. The present invention relates to the field of object positioning, and aims to solve the problems in the prior art of being unable to detect the specific direction angle of an object, being not suitable for ordinary intelligent terminals and being greatly affected by ambient noise. The technical solution used comprises: designing a unique audio signal; performing single-sided two-way ranging on the basis of an audio; and performing positioning on the basis of audio ranging and PDR. By designing a specific audio signal, then performing single-sided two-way ranging on the basis of an audio, and finally performing precise positioning by using a ranging result in combination with PDR, the method has low cost, high positioning accuracy and a large effective working range. According to the present technical solution, by using an audio signal for ranging and PDR for direction determination, positioning of an object to be searched for is completed without the help of a third-party device; moreover, positioning based on audio ranging and PDR is not affected by an open environment and loud noise, and the ranging in the positioning is decimeter-level, so that the positioning accuracy is higher.
Inventors:
CHEN RUIZHI (CN)
HUANG LIXIONG (CN)
LIU KEQIANG (CN)
YE FENG (CN)
GUO GUANGYI (CN)
XU SHIHAO (CN)
QIAN LONG (CN)
LI ZHENG (CN)
LIN XINCHUANG (CN)
HUANG LIXIONG (CN)
LIU KEQIANG (CN)
YE FENG (CN)
GUO GUANGYI (CN)
XU SHIHAO (CN)
QIAN LONG (CN)
LI ZHENG (CN)
LIN XINCHUANG (CN)
Application Number:
PCT/CN2022/105044
Publication Date:
January 11, 2024
Filing Date:
July 12, 2022
Export Citation:
Assignee:
ZHEJIANG DEQING ZHILU NAVIGATION TECH CO LTD (CN)
International Classes:
G01S15/08; G01C21/16; H04W4/80
Foreign References:
| CN110910876A | 2020-03-24 | |||
| CN104155644A | 2014-11-19 | |||
| CN113473285A | 2021-10-01 | |||
| CN202142164U | 2012-02-08 | |||
| CN108828524A | 2018-11-16 | |||
| US20180352324A1 | 2018-12-06 |
Attorney, Agent or Firm:
WUHAN XINBOZHIHUI INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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