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Title:
DISTANCE MEASUREMENT METHOD, APPARATUS, SYSTEM, AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/160524
Kind Code:
A1
Abstract:
A distance measurement method, an apparatus, a system, and a readable storage medium. The distance measurement method comprises: acquiring a first offset time (S310) and a first moment (S330), the first offset time being the time difference between a system clock of a first device and a system clock of a second device, and the first moment being a moment when the second device sends a distance measurement signal; acquiring a second moment when the distance measurement signal is received (S360), the second moment being obtained according to a third moment when the first device begins reception of the distance measurement signal and a reception interval time, the third moment being converted and obtained according to a fourth moment when a distance measurement signal receiving chip begins reception of the distance measurement signal, the system clock of the first device, and a chip clock of the distance measurement signal receiving chip; and obtaining the distance between the first device and the second device according to the first offset time, the first moment, and the second moment (S370). Due to the higher precision of the system clocks, the obtained distance calculated according to the moments obtained by the system clocks is more accurate, and the error is smaller.

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Inventors:
PENG LAN (CN)
DU ZHENGUO (CN)
WANG QI (CN)
WEI PEIZHENG (CN)
QU PENGCHENG (CN)
Application Number:
PCT/CN2023/077349
Publication Date:
August 31, 2023
Filing Date:
February 21, 2023
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01S5/02
Foreign References:
CN113988842A2022-01-28
CN113993077A2022-01-28
CN112291710A2021-01-29
JP2009198374A2009-09-03
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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