基于MVB+CAN总线技术的车门监控网络设计
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