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CAN总线在电动汽车监测系统中的应用
摘要
现在,CAN 的高性能和可靠性已被认同,并被广泛地应用于工业自动化、船舶、医疗设备、工业设备等方面。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。它的出现为分布式控制系统实现各节点之间实时、可靠的数据通信提供了强有力的技术支持。
CAN属于现场总线的范畴,它是一种有效支持分布式控制或实时控制的串行通信网络。较之目前许多RS-485基于R线构建的分布式控制系统而言, 基于CAN总线的分布式控制系统有明显的优越性。
本文在占有大量相关资料的基础上,综合运用各种分析方法对CAN总线在电动车监测系统中应用理论及发展问题作了分析探讨,并对一些问题提出了自己的看法。全文共分四部分:
第一部分,主要介绍课题背景与课题所研究的内容,在课题背景中写了CAN总线的研究现状与意义,在课题研究内容中说明了客体的测量要求及本篇论文完成的任务。
第二部分,写数据采集模块的设计,分别由基于SJA1000的CAN通讯端口设计;电动车采集点的设计;电动车电量采集节点的设计三部分组成。
第三部分,主要写电动车监测网络的设计,先对现场总线惊醒比较和选择,之后介绍所选的CAN总线,最后对CAN总线控制器SJA1000进行介绍。
第四部份,是真对系统的可靠性设计进行讨论,分别从数据的标定,软件的抗干扰性设计和硬件的抗干扰性设计三方面来解决系统的可靠性问题。

关键词 现场总线;CAN总线;SJA1000;节点;

CAN bus in the electric vehicle monitoring system of
Abstract
Now, CAN, high-performance and reliability has been recognized and was widely used in industrial automation, marine, medical equipment, industrial equipment, and so on. Field Bus is the development of automation technology One of the focuses of the area known as automated computer LAN. It is a distributed control system to achieve real-time between the nodes, reliable data communications providing strong technical support.
CAN bus belonging to the scene of the areas, it is an effective support for real-time control of distributed control or serial communication network. Compared with many of the current RS-485 based on the R line Construction of the Distributed Control System, based on the CAN bus distributed control system has obvious advantages.
In this paper, occupies a lot of relevant information based on the comprehensive use of various methods of the CAN bus in the electric vehicle monitoring system in the application of theory and an analysis of development issues, and some of the problems raised his own views. The full text is divided into four parts:
The first part of the main topics on the background and content of the subjects studied in the context of topics to write on the CAN bus status and significance in the research described in the content of the object of measurement requirements and complete the task of this paper.
The second part, write data acquisition module design, from the SJA1000 CAN-based communications port design, acquisition, the electric car design; electric car design capacity of the collection node consists of three parts.
The third part, mainly to write the electric vehicle monitoring network design, the first Fieldbus awakened comparison and choice, selected after the introduction of the CAN bus, the last of the SJA1000 CAN bus controller is introduced.
The fourth part is really on the reliability of the system design for discussion, data from the calibration, the anti-jamming software and hardware design of the anti-jamming design in three areas to address the reliability of the system problems.

Key words :Fieldbus; CAN bus; SJA1000; nodes;
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第1个回答  2008-05-16
标题:CAN BUS used in the monitoring system of the electric vehicle