In order to further improve the synchronization of signal acquisition of distributed sensing equipment in power system substation,improve the synchronization accuracy of clock.A clock synchronization board is designed to realize the high precision clock synchronization system of IEEE1588.The clock board uses satellite timing,through digital phase-locked loop,to provide the system with low jitter,high precision synchronous clock source and variable ADC sampling frequency.The synchronization system uses LS1012A as the main controller and implements the local clock adjustment algorithm by running LinuxPTP.88E1512 is used to calibrate the hardware time stamp of the SerDes interface,avoid the influence of the software time stamp on the uncertain network delay,reduce the delay of the signal in the transmission process,and further improve the accuracy of the clock synchronization in gigabit Ethernet network.
维普
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