文档介绍：毕业设计(论文)
题目:基于CAN总线在工业测控系统的应用研究
英文题目:Application and Research on Industrial Measure and Control System Base on CAN Field-bus

系别: 电子与机械工程系
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专业: 自动化
二零零六年六月
摘要
现场总线是当今自动化领域技术发展的热点之一,被誉为自动化领域的计算机局域网。它的出现,标志着工业控制技术领域又一个新时代的开始,并将对该领域的发展产生重要影响。
CAN总线属于现场总线技术的一种。是目前流行的现场总线控制系统之一,也是到目前为止唯一有国际标准了的现场总线。与一般的通信总线相比,CAN总线的数据通信具有突出的可靠性、实时性和灵活性,同时具备了现场总线的优点。
本课题的研究主要针对现场总线中的CAN总线技术进行深入的了解。在分析了制网络模型的原理,,给出了建立CAN总线控制网络模型的原理,在此基础上分析了CAN总线软、硬件的实现方法。开发一种基于CAN总线的现场控制智能节点和智能适配卡,并对所涉及的有关问题进行探讨。
关键词
现场总线;CAN总线;适配卡;智能节点
Abstract
Fieldbus is one of the hotspots of the development of automatization technology;it’s looked as work in thefield of appearance is the symbol of a new age of industry control technology, and impacts the development of this field deeply.
CAN bus is a kind of Fieldbus,it is one of the popular Fieldbus control system,and it is also the only Fieldbus which has national paring to munication bus,the munication of CAN bus has excellent characters of reliability,real-time and flexibility, and the strongpoint of Field bus.
The reaserch of this thesis mainly aim at the technology of CAN bus of this paper, we analyze the CAN protocol first and a model of CANcontrol system is established. In the following part, we design the CAN nodes and thesoftware to realize its deplored a kind of aptitude field control interface and aptitude adaptor base on CAN ’s more,this thesis has discussed the problem involved deeply.
Keywords
Field Bus;CAN Bus;Aptitude interface;Adaptor
目录
摘要
ABSTRACT
绪论 1
1. CAN总线的技术规范及结构 6
CAN总线的概述 6
CAN总线技术特点 7
CAN总线的应用发展现状 8
CAN总线协议介绍 8
CAN总线分层结构 9
报文传送及其帧结构 10
通信方式 10
支持CAN总线的几种器件介绍 11
CAN总线控制器SJA1000 11
2. CAN总线在工业测控系统上的总体设计 17
CAN总线测控系统的网络拓扑原理 17
系统方案及芯片选择 18
系统硬件设计 19
适配卡的硬件设计 19
单片机与CAN控制器电路 20
双口RAMIDT-7132电路 21
总线驱动及接口电路 24
适配卡串行E