公开(公告)号：US20240418843A1

公开(公告)日：2024-12-19

申请号：US18816198

申请日：2024-08-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lan PENG ,  Zhenguo DU ,  Qi WANG ,  Peizheng WEI ,  Pengcheng QU

IPC: G01S11/08

Abstract: The present disclosure relates to distance measurement methods, apparatuses, and systems, and readable storage media. An example method incudes: obtaining first offset time and a first moment, where the first offset time is a time difference between a system clock of a first device and a second device, and the first moment is a moment at which the second device sends a distance measurement signal; obtaining a second moment at which the distance measurement signal is received, where the second moment is obtained based on a third moment at which the first device starts to receive the distance measurement signal and a receiving time interval; and obtaining a distance between the first device and the second device based on the first offset time, the first moment, and the second moment.

公开(公告)号：US20240411003A1

公开(公告)日：2024-12-12

申请号：US18813541

申请日：2024-08-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qi WANG ,  Lan PENG ,  Zhenguo DU ,  Liang WANG

IPC: G01S11/14

Abstract: A distance measurement method. A first electronic device establishes a communication connection to a second electronic device. The first electronic device receives a distance measurement instruction. The first electronic device receives a plurality of groups of sound wave signals sent by a speaker in the second electronic device. Then, the first electronic device determines, based on the plurality of groups of sound wave signals, a sending moment, and a sound wave velocity, a real-time distance between the first electronic device and the second electronic device when each group of sound wave signals are received by the first electronic device. Finally, the first electronic device continuously refreshes and displays the real-time distance between the first electronic device and the second electronic device that is obtained through calculation to improve display precision.