| 摘要 |
PURPOSE: A time synchronization system and method between a master device and a slave device are provided to perform time synchronization between devices by piggybacking time information in a data packet. CONSTITUTION: A master device includes its own visual information in a state checking data packet to inspect the state of a slave device. The master device includes transmits the state checking data packet including the visual information to the slave device(110). The slave device synchronizes its own current time with the time of the master device by receiving the state checking data packet including the visual information. The slave device compares its own current time with the time included in the state checking data packet(120). The slave device resets its own current time as the time included in the state checking data packet(130). [Reference numerals] (110) A master device transmits a state checking data packet for inspecting the state of a slave device with visual information; (120) Current time of the slave device = time included in the data packet; (130) The slave device resets current time as the time included in the data packet; (AA) Start; (BB) Yes; (CC) No; (DD) End
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