Online synchronization method and system for multi-node data of upper computer of trusted distributed control system

The invention relates to the technical field of industrial automation, and discloses an upper computer multi-node data online synchronization method and system for a trusted distributed control system, and the method comprises the steps: reading a current node configuration file, obtaining the directory information of the current node configuration file, and obtaining the information of other nodes in the system; initializing a file information item list according to the directory information; generating other node lists according to other node information; and creating a file synchronization thread and a heartbeat thread which are respectively used for performing regular file synchronization and node communication connection heartbeat judgment with nodes in other node lists, and starting the threads to complete periodic data synchronization and file information synchronization. According to the method, periodic data synchronization and updating can be efficiently completed. 本发明涉及工业自动化技术领域，公开了一种可信分散控制系统上位机多节点