TIME REFERENCE TERMINAL, MEASUREMENT TERMINAL, TIME SYNCHRONIZATION SYSTEM, AND TIME SYNCHRONIZATION METHOD

摘要

This invention provides a time reference terminal and the like whereby measurement time intervals and variations in a communication environment do not bring about factors that cause measurement error and power consumption is thus reduced. The time reference terminal (24) in this time synchronization system is connected to one or more processing terminals that start prescribed processing at a predetermined processing-start time. Said time reference terminal (24) is provided with an operation-start instruction unit (24a) and a synchronization processing unit (24c). The operation-start instruction unit (24a) transmits, to each of the processing terminals, a signal that instructs the processing terminals to not start processing until the processing-start time. For each processing terminal, the synchronization processing unit (24c) performs a synchronization process so as to synchronize said processing terminal with the time reference terminal (24) such that said synchronization process completes before the processing-start time by the amount of time between the current time and the processing-start time corresponding to the precision of a clock associated with the operations performed by that processing terminal.