摘要：轨道车辆门控系统中加入多功能车辆总线(MVB)协议已经成为目前的发展趋势，通过轨道车辆门控器与MVB的通讯方式的结合，提出了新的门控器硬件设计想法，其中包括微处理器选型、驱动电路和保护电路的设计等。阐述了相应的软件设计思想，包括开门、关门控制程序流程。由于MVB总线物理层有着局限性，每个网段最多只能接32个设备，这就限制了直接连接到MVB总线的车门数量。本文是来研究基于MVB+CAN总线技术的车门网络设计和实现方法。利用两个主门控器作为MVB转CAN的冗余网关，这样解决了每个MVB网段连接设备数量的局限问题、同时降低了系统成本，而且提高了车门网络系统的可用性。研究中的仿真得益于计算机技术与测试测量仪器技术的高度结合，即“虚拟仪器”。运用虚拟仪器技术能够进行信号分析、数据处理、存储以及图形化显示等。24518
毕业论文关键字：MVB总线；CAN总线；门控器；虚拟仪器
Design of the door control by network based on MVB+CAN train technology
Abstract：Rail vehicle door control system added Multifunction Vehicle Bus (MVB) protocol has become the current development trend, By combining rail vehicle door controller with MVB communications approach, a new door controller hardware design ideas, including a microprocessor selection, drive circuit and protection circuit design. It describes the corresponding software design, including open, close control program flow. Since the MVB bus physical layer has limitations, each segment can only take a maximum of 32 devices, which limits the MVB bus directly connected to the number of doors. This article is based on MVB + door to network design and implementation of CAN bus technology. Using two main doors to CAN controller as a redundant gateway MVB, MVB solved for each segment the number of devices connected to the limitations of the problem, while reducing system cost, and improve the availability of network systems door. Thanks to a high degree of simulation studies combining computer technology and test and measurement instruments and technology, namely "virtual instruments." The use of virtual instrument technology for signal analysis, data processing, storage and graphical display.
KeyWords: MVB bus; CAN bus; gate controller ; virtual instrument
目 录
1    绪论    1
1.1    本课题的目的和意义、国内外研究现状、水平和发展趋势    1
1.1.1    课题的目的    1
1.1.2    课题的意义    1
1.2    国内外研究现状与水平    1
1.2.1    国外研究与水平    1
1.2.2    国内研究与水平    3
1.3    发展趋势    3
2    MVB总线通信协议    5
2.1    MVB通信协议    5
2.2    MVB通信网络层次    5
2.3    MVB通信网络物理层    5
2.4    MVB通信网络数据链路层    8
2.5    MVB通信网络数据类型    11
3    门控系统的设计    15
3.1    系统配置    15
3.2    门控器的组成    15
3.3    门控器的设计    16
3.3.1    微处理器    17
3.3.2    驱动电路设计    19
3.4    门控器软件设计    20
4    系统性能测试    23
4.1    Proteus介绍    23 基于MVB+CAN总线技术的车门监控网络设计:http://www.751com.cn/tongxin/lunwen_18047.html