Modeling and simulation of CAN physical layer

doi:10.3778/j.issn.1002-8331.2008.36.003

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (36): 11-15.DOI: 10.3778/j.issn.1002-8331.2008.36.003

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Modeling and simulation of CAN physical layer

ZHU Qi-dan,WANG Tong

College of Automation，Harbin Engineering University，Harbin 150001，China

Received:2008-09-08 Revised:2008-10-16 Online:2008-12-21 Published:2008-12-21
Contact: ZHU Qi-dan

CAN通信物理层建模与仿真

朱齐丹,汪瞳

哈尔滨工程大学自动化学院，哈尔滨 150001

通讯作者: 朱齐丹

Abstract

Abstract: The problem of the modeling and simulation of CAN physical layer is considered.The main structure of CAN physical layer is described in a brief way.The way how CAN bus driver PCA82C250 works is analyzed and its model is created base on its principium.The model of twisted pair wire is created with the consideration of its work environment.The model of CAN physical layer which is suitable for simulation is created base on the model of CAN bus driver and twisted pair wire.The coincidence of the simulation results and theory analysis indicates the reasonability and validity of the model.

Key words: CAN bus, physical layer, modeling, simulation

摘要： 针对工业上应用广泛的现场总线CAN总线的物理层数学建模与仿真问题进行了研究。分析了CAN总线物理层的一般组成结构；对CAN总线驱动器PCA82C250的工作原理进行了分析，并为其建立了数学模型；根据CAN总线物理层的工作环境特点为通信介质双绞线建立了数学模型；在驱动器和通信介质数学模型的基础上为CAN总线物理层建立了适合于仿真分析的数学模型并进行了仿真分析研究，仿真结果与理论分析一致，验证了模型的合理性与有效性。

关键词: CAN总线, 物理层, 建模, 仿真

ZHU Qi-dan,WANG Tong. Modeling and simulation of CAN physical layer[J]. Computer Engineering and Applications, 2008, 44(36): 11-15.

朱齐丹,汪瞳. CAN通信物理层建模与仿真[J]. 计算机工程与应用, 2008, 44(36): 11-15.

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Modeling and simulation of CAN physical layer

CAN通信物理层建模与仿真

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