| 基于CAN总线的煤矿实时通信协议研究 |
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| 引用本文： | 孙彦景,李燕,钱建生,马晓栋.基于CAN总线的煤矿实时通信协议研究[J].计算机工程,2010,36(10):236-238. |
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| 作者姓名： | 孙彦景 李燕 钱建生 马晓栋 |
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| 作者单位： | 1. 中国矿业大学信息与电气工程学院,徐州,221008
2. 中国矿业大学计算机学院,徐州,221008 |
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| 基金项目： | 国家“863”计划基金资助项目(2007AA06Z114);;江苏省高新技术基金资助重大项目(BG2007012);;中国矿业大学科研基金资助项目(OC080303) |
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| 摘 要： | 根据煤矿监控系统中周期数据和非周期数据对时间的不同要求，在CAN总线非破坏性优先权逐位仲裁规则的基础上，提出一种节点传递法则，有效地减小数据碰撞的概率，解决帧传输延时的不确定性，提高信道的使用率和传输数据的实时性，介绍该实时通信协议，给出例外事件的处理方法，讨论并分析帧最大传输延时的具体计算方法。
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| 关 键 词： | 节点传递法则 最大传输延时 CAN总线 实时通信协议 |
Research on Coalmine Real-time Communication Protocol Based on CAN Bus |
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| SUN Yan-jing,LI Yan,QIAN Jian-sheng,MA Xiao-dong.Research on Coalmine Real-time Communication Protocol Based on CAN Bus[J].Computer Engineering,2010,36(10):236-238. |
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| Authors: | SUN Yan-jing LI Yan QIAN Jian-sheng MA Xiao-dong |
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| Affiliation: | (1. School of Information and Electrical Engineering, China University of Mining & Technology, Xuzhou 221008;2. School of Computer, China University of Mining & Technology, Xuzhou 221008) |
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| Abstract: | According to the different demands of periodic and aperiodic data, the regulation of node transfer is presented based on non-destroyed priority bit-by-bit arbitrate regulation. The probability of data collision is minished effectually, and a limited transmission time is ensured. The maximum delay time is made adjustable and the real-time of the data communication is improved. The real-time protocol is described detailedly and the method of exception is given. View of the new protocol, the calculating methods of maximum transmitting delay is discussed and analyzed. |
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| Keywords: | node transfer rule maximum transmission delay CAN bus real-time communication protocol |
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