Time calibration method and device, and computer-readable storage medium

A time calibration method applied to a reference device of a time calibration system comprising the reference device and a to-be-calibrated device,

• the time calibration method comprising:
• generating a first data frame comprising a plurality of first code blocks;
• transmitting the first data frame to the to-be-calibrated device, to cause the to-be-calibrated device to obtain a first moment value for characterizing a local moment when an initial one of the first code blocks of the first data frame is transmitted from the reference device;
• and
• obtaining a second data frame transmitted by the to-be-calibrated device, to cause the to-be-calibrated device to obtain a fourth moment value, and performing time calibration based on the first moment value and the fourth moment value, wherein the second data frame comprises a plurality of second code blocks, and the fourth moment value is used to characterize a local moment when the initial one of the second code blocks is received by the reference device.

A time calibration device comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor implements operations when performing the computer program, the operations comprising:

• obtaining a first data frame transmitted by a reference device, and obtaining a first moment value and a second moment value, the first data frame comprising a plurality of first code blocks, the first moment value for characterizing a local moment when an initial one of the first code blocks is transmitted from the reference device, the second moment value for characterizing a local moment when the initial one of the first code blocks is received by a to-be-calibrated device;
• after obtaining the first data frame, transmitting a second data frame to the reference device, and obtaining a third moment value and a fourth moment value, the second data frame comprising a plurality of second code blocks, the third moment value for characterizing a local moment when an initial one of the second code blocks is transmitted from the to-be-calibrated device, the fourth moment value for characterizing a local moment when the initial one of the second code blocks is received by the reference device;
• performing time calibration based on the first moment value, the second moment value, the third moment value and the fourth moment value, to synchronize a local time of the to-be-calibrated device with the reference device.

A time calibration device comprising a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor implements operations when performing the computer program, the operations comprising:

• generating a first data frame comprising a plurality of first code blocks;
• transmitting the first data frame to a to-be-calibrated device, to cause the to-be-calibrated device to obtain a first moment value for characterizing a local moment when an initial one of the first code blocks of the first data frame is transmitted from the reference device;
• and
• obtaining a second data frame transmitted by the to-be-calibrated device, to cause the to-be-calibrated device to obtain a fourth moment value, and performing time calibration based on the first moment value and the fourth moment value, wherein the second data frame comprises a plurality of second code blocks, and the fourth moment value is used to characterize a local moment when the initial one of the second code blocks is received by the reference device.