动车组网络控制的研究+文献综述
毕业论文关键词： 列车通信网络；单片机；双网冗余；网络控制
Research Of EMU Networked Control
Abstract：EMU operation control system is one of the key technologies for the safe operation
of the train, and is closely related to the safety of passengers.EMU network control system has
been studied mainly in this paper, we have a detailed analysis on architecture and the design of
the network control MCU．For the requirements of good real-time traffic safety, high reliability,
the paper designed redundant Ethernet to achieve the train control, so that in case of when the
system have failures can automatically switch to the redundant system and then ensure the
system operation normally. This paper based on the standard TCN, and have analyzed the
structure of TCN，which leads to the hardware and software architecture of the system is set up,
the hardware used a microcontroller whose name is MB9F618, have a detailed analysis of the
hardware components and distribution of parts, the principle of external ports is analyzed;
software is used software named Keil to simulation design about the switch、 the initialization of
protocol, system monitoring and other aspects of the design.
KeyWords：TCN；single chip；dual redundant Ethernet；network control
目录
1 绪论.1
1.1 课题背景及研究意义.1
1.2 国内外技术发展现状与水平.1
1.3 发展趋势.2
1.4 本课题主要进行的工作.3
2 动车组网络控制的设计 4
2.1 概述.4
2.2 列车总线WTB与车辆总线 MVB 简介.4
2.2.1 列车总线WTB4
2.2.2 多功能车辆总线MVB. 5
2.3 常见的现场总线简介.5
2.3.1 LonWorks 总线 5
2.3.2 CAN总线. 5
2.3.3 Profibus 总线6
2.3.4 基金会现场总线（FF 总线） 6
2.4 以太网的简介.7
2.5 动车组网络控制系统的拓扑结构.7
2.6 动车组网络控制系统的冗余设计.8
2.6.1 双冗余方案的提出8
2.6.2 双网冗余通信系统的硬件构架9
2.6.3 双网冗余通信系统的软件架构9
2.7 小结.10
3 单片机的硬件设计 11
3.1 单片机构架简介.11
3.2 单片机的硬件配置.11
3.3 各个外部资源的设计及介绍.12
3.3.1 CPU模块12
3.3.2 串口12
3.3.3 网络接口13
3.3.4 电源14
3.4 小结.14
4 单片机的软件设计 15
4.1 keil软件简介.15
4.2 RT-THREAD.16
4.3 双冗余网络的软件设计.16
4.3.1 单片机以太网程序设计16
4.3.2 UDP 方式的编程研究17
4.3.3 协议初始化18
4.3.4 网络接口信息的获取18
4.3.5 监听19
4.3.6 报错19
4.3.7 双网切换模块的设计20
4.4 小结.21
5 结论.23
致谢24
参考文献. 25
附录26
1绪论
1.1 课题背景及研究意义
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