| 远程实时控制系统EPON动态分配研究 |
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| 引用本文： | 陈光武,范多旺,杨菊花.远程实时控制系统EPON动态分配研究[J].测控技术,2006,25(10):46-48,52. |
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| 作者姓名： | 陈光武 范多旺 杨菊花 |
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| 作者单位： | 兰州交通大学,光电技术与智能控制教育部重点实验室,甘肃,兰州,730070 |
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| 摘 要： | 以太无源光网络(EPON)结合了以太网技术和无源光网络技术的优势,能够以较低的价格实现高速接入.随着远程分布控制系统实时性要求的不断提高,将EPON引入到控制系统中,是一种理想的选择.首先简要介绍了整个远程控制系统拓扑结构,然后根据该系统的特点,提出了一种改进的上行动态带宽分配算法,结合了轮询机制和实时性优先级.通过建模仿真,验证了该算法可以取得较高的实时性和带宽利用率.
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| 关 键 词： | 以太无源光网络 控制系统 动态带宽分配 波分复用 |
| 文章编号： | 1000-8829（2006）10-0046-03 |
| 收稿时间： | 2005-09-07 |
| 修稿时间： | 2005-09-07 |
Study on Long-Distance Real-Time Control System With Dynamic Bandwidth Allocation of EPON |
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| CHEN Guang-wu,FAN Duo-wang,YANG Ju-hua.Study on Long-Distance Real-Time Control System With Dynamic Bandwidth Allocation of EPON[J].Measurement & Control Technology,2006,25(10):46-48,52. |
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| Authors: | CHEN Guang-wu FAN Duo-wang YANG Ju-hua |
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| Affiliation: | Key Laboratory of Opto-Eleetronic Technology and Intelligent Controll, Lanzhou Jiaotong University, Lanzhou 730070, China |
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| Abstract: | Etherent passive optical network(EPON) has combined the advantages of Ethernet and passive optical technology.High speed accessing at lower price has been realized in this way.Higher real-time requirements in the long-range distributed the control system is put at present.It is a better choice to introduce EPON in the control system.The topological structure of the whole system at first is introduced briefly.Then,based on the characteristic of the control system,a modified dynamic bandwidth allocation algorithm,which integrates polling scheme and real-time priority,is proposed.Simulation results show that good real-time property and high bandwidth utilization are realized with this algorithm. |
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| Keywords: | Etherent passive optical network(EPON) control system dynamic bandwidth allocation(DBA) WDM |
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