Load Banlancing Application Research Of High-Speed Train Control Network Based On Industial Ethernet

China’s high-speed railway technology develop vigorously,high-speed railway is the first choice in many people’s travel, and the network is also the indispensable habit in daily life,so, The passenger also have beeter network service demand on the travel.In addition to satisfy the high-speed train’s control instruction the state information and display information,but also to provide electronic commerce, entertainment and real-time information for the travellers.But at present the network bandwidth of China’s high-speed train communication network TCN and ARCNET can not meet all these requirements. While the industrial Ethernet is not only have the plenty of network bandwidth, but also can satisfy the special requirements of industrial field in real-time, so the industrial Ethernet has many obvious advantages in the next generation of high-speed train network.High-speed train carriage of passengers divide into the first class and economy class, provided the different quality of service for different passengers, at the same time, the access frequency to the network and the bandwidth of each of the carriage of passengers are not the same, how to use the network resources more efficient is a hot spot in high-speed train network reseach, is also the focus of research in this paper.This paper was based on the national science and technology support project-the high speed train network control system(2009BAG12A06),first the paper through studied the characteristic of industrial Ethernet and the Real-time Ethernet agreement, summarized several methods to solve the real-time questions of industrial Ethernet,at the same time analyzed the Round-Robin load balance scheduling algorithm and its application and summarized several improved schemes of the algorithm by scholars both at home and abroad.Second in the high-speed train network simulation model called up Round-Robin algorithm to simulate and analyzed the performance based on OPNET platform,that is to build a bus control network of high-speed train based on industrial Ethernet in the OPNET network simulation platform,and add Round-Robin algorithm procedures to the load balance node, and call this algorithm to simulate,and check the delay,the network load and the other simulation results.Third used the pure software simulate the high speed train control network,that is to use eight PCs building the bus topology high-speed train control network, write the sending and receiving data functions,packaging the etheric agreement data functions and analytic data functions, call the load balance Round-Robin algorithm and simulation, contrast analyse the results through the MFC monitoring interface concluded that the algorithm can achieve the load balance of the train.Final through the OPNET network simulation and the pure software simulation shows that industrial Ethernet is used for the high speed train control network is feasible, and call the Round-Robin algorithm can make the control network load balance.