| CAN总线网络的实时性研究和改进 |
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| 引用本文： | 刘向明,方建安.CAN总线网络的实时性研究和改进[J].现代电子技术,2011(22):46-49. |
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| 作者姓名： | 刘向明 方建安 |
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| 作者单位： | 东华大学信息科学与技术学院; |
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| 摘 要： | 由于CAN总线的独特优势,CAN已成为工业数据通信的主流技术之一,这就要求它具有良好的实时性和可靠性。但是随着CAN总线控制网络复杂化,控制节点的增多,带宽分配不均问题也随之凸显,使得总线上低优先级的站点数据传输延时增加。提出了动态优先级算法,它能够动态改变站点优先级,解决带宽分配不均问题,实现数据实时传输;简要介绍时间触发CAN（TTCAN）协议,并通过实验与动态优先级算法和标准CAN协议进行比较,得出网络延时特征。
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| 关 键 词： | 实时性 动态优先级 TTCAN 网络延时 |
Research and Improvement of Real-time Performance of CAN Bit Network |
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| LIU Xiang-ming,FANG Jian-an.Research and Improvement of Real-time Performance of CAN Bit Network[J].Modern Electronic Technique,2011(22):46-49. |
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| Authors: | LIU Xiang-ming FANG Jian-an |
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| Affiliation: | LIU Xiang-ming,FANG Jian-an(Donghua University College of Information Science and Technology,Shanghai 201620,China) |
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| Abstract: | Due to the unique advantage of CAN bus,CAN has become one of the mainstream technologies for the industrial data communication,which requires good real-time performance and reliability.With the complexity of CAN-NCS and the increase of control nodes,the unequal distribution of the bandwidth highlights,which makes the data transmission delay of low priority nodes in the bus more serious.The dynamic priority algorithm is put forward.It can change the priority level of the nodes dynamically,solve the problem o... |
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| Keywords: | CAN real-time performance dynamic priority TTCAN network delay |
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