Title:
RANGING METHOD, APPARATUS AND SYSTEM, AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/160177
Kind Code:
A1
Abstract:
A ranging method, apparatus and system, and a readable storage medium. The ranging method comprises: acquiring a first offset time and a first moment, wherein the first offset time is a time difference between a system clock of a first device (100) and a system clock of a second device (200), and the first moment is the moment at which the second device (200) sends a ranging signal; acquiring a second moment when the ranging signal is received (S360), wherein the second moment is obtained according to a third moment at which the first device (100) starts to receive the ranging signal and according to a receiving interval time, and the third moment is obtained by means of conversion according to a fourth moment at which a ranging signal receiving chip starts to receive the ranging signal, the system clock of the first device (100), and a chip clock of the ranging signal receiving chip; and according to the first offset time, the first moment and the second moment, acquiring the distance between the first device (100) and the second device (200) (S370). Since the precision of a system clock is relatively high, a distance, which is obtained by means of calculation and according to a moment acquired according to the system clock, is more accurate, and thus an error is smaller.
Inventors:
PENG LAN (CN)
DU ZHENGUO (CN)
WANG QI (CN)
WEI PEIZHENG (CN)
QU PENGCHENG (CN)
DU ZHENGUO (CN)
WANG QI (CN)
WEI PEIZHENG (CN)
QU PENGCHENG (CN)
Application Number:
PCT/CN2022/140420
Publication Date:
August 31, 2023
Filing Date:
December 20, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01S5/02
Foreign References:
| CN112673339A | 2021-04-16 | |||
| CN111060868A | 2020-04-24 | |||
| CN1954556A | 2007-04-25 | |||
| CN112291703A | 2021-01-29 | |||
| EP2244098A1 | 2010-10-27 | |||
| CN110971326A | 2020-04-07 | |||
| CN104467928A | 2015-03-25 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
Download PDF: