无线电通信技术Issue(5)：93-96,4.DOI:10.3969/j.issn.1003-3114.2015.05.25
优先级控制轮询在变电站通信网络中的应用
Application of Priority Differentiated Polling Strategy in Substation Communication Network
朱龙正 1高宇航 2杨志军 1陶则恩1
作者信息
- 1. 云南大学 信息学院，云南 昆明650091
- 2. 电子科技大学，四川 成都611731
- 折叠
摘要
Abstract
The network is very important to substation automation system. Typically the internal equipment of substation can be divided into three levels.Data and control information at the second level are transmitted to the station⁃level PC of remote control center. This process belongs to the category of computer communication networks. Aiming at the characteristic of substation communication network,this paper uses the gated and exhaustive services mixed polling system in substation.The station level PC communication inter⁃face has higher priority than those on communication interface internal data buffer in the second level.The exhaustive service strategy is used for the station level PC communication interface and gated service for communication interface internal data buffer in the second level.Based on experiments and theoretical calculations,this paper obtains the relationship that the mean time delay and mean queue length increase as the load increases. In addition, it also achieves the relationship that the mean time delay and mean queue length increase as the number of communication interface internal data buffer in the second layer increases. These results are crucial to the improvement of network performance in substation.关键词
变电站通信网络/轮询系统/门限服务/完全服务/平均时延/平均排队队长Key words
substation network/polling system/gated service/exhaustive service/mean time delay/mean queue length分类
信息技术与安全科学引用本文复制引用
朱龙正,高宇航,杨志军,陶则恩..优先级控制轮询在变电站通信网络中的应用[J].无线电通信技术,2015,(5):93-96,4.
