Design of High-Precision Network Timing System Based on RT1064

In order to ensure the real-time data acquisition and accuracy of the control process in the process industry control system, and to meet the high-precision timing synchronization requirements of node devices in the network during the digital and intelligent upgrading process of the process industry control system, a high-precision network timing system is designed. The system is based on the RT1064 microprocessor, which controls the satellite signal-receiving module to receive and extract time information from global satellite navigation system messages. It uses the timing module to adjust the local clock based on the time information in the message, and achieves timing synchronization with other device nodes in the network through the network communication module according to the IEEE1588 clock synchronization protocol; Finally, a testing and validation platform was built to test the timing synchronization accuracy. The experimental results showed that the timing synchronization accuracy of the system was within 200 ns, and it could synchronize multiple node devices simultaneously.