摘要
FC-AE-ASM网络协议介绍了消息特征和网络结构,但没有规定消息的调度算法。确定一种能满足高实时性要求的调度算法是研究FC-AE-ASM网络的关键问题。该文提出了一种基于实时排队论的调度算法,建立了FC-AE-ASM的网络结构模型和数据模型,并推导出实时任务集可调度的充分必要条件。通过仿真分析,以消息传输的延时率为性能衡量指标,验证了该调度算法能很好满足消息传输的实时性要求。
The network protocol of FC-AE-ASM （Fiber Channel Avionics Environment-Anonymous Subscriber Messaging） introduces the character of news and the structure of network, but it doesn＇t set the scheduling algorithm of news. Confirming a kind of scheduling algorithm which can satisfy the requirement of high real time capability is a key of studying the FC-AE-ASM network. A scheduling algorithm based on real time queuing theory （RTQT） is proposed. The network structure model and data model of FC-AE-ASM was established. The sufficient and necessary conditions of the sehedulability of real-time task sets were deduced. It is verified, by taking delay rate of message transmission as performance metrics, that the scheduling algorithm can meet the requirement of real time task set.
出处
《现代电子技术》
2011年第6期108-111,共4页
Modern Electronics Technique
基金
航空科学基金资助项目(2010ZC53036)
