基于OPNET的CAN总线实时性的仿真与分析  

Simulation and Analysis of CAN Bus Real-time Performance based on OPNET

作　　者：刘明芹[1] 付东翔[1] 王亚刚[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《通信技术》2014年第3期281-285,共5页Communications Technology

摘　　要：控制器局域网(CAN)的建模与仿真不仅能对CAN总线性能进行评估,而且能优化CAN总线网络的设计。在研究分析CAN总线通信控制协议的基础上,采用OPNET网络仿真工具,运用网络层次化建模方法,建立CAN总线通信网络模型。通过该仿真模型,分析了CAN总线网络中CAN节点优先级、传输速率、帧信息量以及填充位等因素对CAN总线网络实时性的影响,从而为CAN总线网络的设计与优化提供理论参考。Modeling and simulation of a controller area network （ CAN） could evaluate and optimize CAN bus network design. Based on research and analysis of CAN communication protocol, CAN communication network model is developed with OPNET network simulation tool and by layered modeling method. This pa-per mainly analyzes the influence of node priority, transmission rate, information frame and bit stuffing on the real-time performance of CAN bus, thus to provide a theoretical reference for the design and optimiza-tion of CAN based network system.

关 键 词：控制器局域网 OPNET 层次化建模 实时性 

分 类 号：TP915[自动化与计算机技术]