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Run control system communication network is the core of the the distributed train control system , and is closely related to the safe operation of the maglev train . Paper maglev train operation control system communication subsystem system and focus on exploration and study of the the communication subsystem ground segment of the operation control system , the system management center and the sub-control center network connection . For real - time and reliability requirements , the paper presents the ground to build a maglev train operation control system using a dual redundant Ethernet communications network , a detailed analysis of a dual redundant Ethernet work , work status, and reliability . First , on the basis of the analysis system stream , the design goal of a communication system for the dual network redundancy , given the dual network redundancy communication system software and hardware architecture . Then chose the design goals of the communication system based on dual network redundancy dual network redundancy communication system used by the network model , network interface , network protocols , and dual network redundancy communication system I / O operations , the data buffer management , the the timeout retransmission and application layer protocol design . Finally, using VC Winsock programming , client / server model , based on TCP / IP protocol to protect the accuracy and reliability of network data communication , network programming of key technologies such as multi-threaded program , heartbeat monitoring module , as well as dual-network switch module design .
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