Time synchronization system, timemaster, administrative master and time synchronization procedures

摘要

A time synchronization system includes a time master (2) and an administrative master (3). The administrator master (3) includes an administrator master priority query (32),sending a priority query framework to each timemaster (2) and an administrative master-highest priority processor (34),which to a time master (2),which maintains a priority that is the highest among the priorities of the timemaster, sends a top priority communication framework to change the priority to the highest priority. Each of the timemasters (2) includes a timemaster priority responder (22),which sends to the administrator (3) a priority response framework after the priority query framework has been received by the administrator (3) and a timemaster top priority processor (24),which changes its priority to the highest priority when the top priority communication framework is received by the administrator (3). The main master (1) transmits to each time master (2) a time message frame to synchronize a time of the time master (2).