时间触发光纤通道调度算法确定性分析
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摘要
光纤通道以其优良性能,成为下一代航电系统的必然选择。但是基于事件触发的消息调度形式限制了对航电系统性能的分析,为提高消息在网络中传输时间确定性,在时间触发协议的基础上,针对光纤通道提出一种时间触发的消息调度算法。通过对交换式网络建模,采用理论和仿真相结合的方法,对先来先服务调度策略和时间触发调度策略进行分析,结果表明时间触发调度算法可以很好地提高网络消息传输的确定性,满足航电系统安全关键消息的传输要求。
Depending on excellent performance, fiber channel becomes an inevitable choiceof avionics network in next generation. But the message dispatching form of event triggered limit analysing on the performance of the avionics system,in order to increase the time determinacy of message in network, basing on the time triggered protocol, a kind of message scheduling algorithm of time triggered is presented to FC. By means of the switched network modeling, using a method of theory and simulation are combined to analyze the FCFS scheduling algorithm and the time triggered scheduling algorithm, the results show that the time triggered scheduling algorithm can improve the deterministic effectively for network message, meet the request of avionics system security key message transmission.
Depending on excellent performance, fiber channel becomes an inevitable choiceof avionics network in next generation. But the message dispatching form of event triggered limit analysing on the performance of the avionics system,in order to increase the time determinacy of message in network, basing on the time triggered protocol, a kind of message scheduling algorithm of time triggered is presented to FC. By means of the switched network modeling, using a method of theory and simulation are combined to analyze the FCFS scheduling algorithm and the time triggered scheduling algorithm, the results show that the time triggered scheduling algorithm can improve the deterministic effectively for network message, meet the request of avionics system security key message transmission.
引文
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[15]Tawk M,Zhu Guchuan,Savaria Y,et al.A tight endto-end delay bound and scheduling optimization of an avionics AFDX network[C]//IEEE Digitial Avionics System Conference,2011:1-10.
[2]INCTIS.T11/02-041v1,Fibre channel avionics environment[S].USA,2002.
[3]李斌,季雷.基于FC-AE-ASM的可靠传输协议[J].现代电子技术,2015,45(3):123-126.
[4]翟正军,陈康,焦航.FC-AE-ASM网络的模糊可靠性研究[J].计算机应用研究,2013,30(8):2467-2469.
[5]徐亚军,张晓林,熊华钢.FC互连的可靠性建模[J].北京航空航天大学学报,2005,31(5):539-543.
[6]易川,翟正军,羊昌燕.基于蒙特卡罗法的FC-AE-ASM网络可靠性研究[J].计算机工程与应用,2014,50(3):59-62.
[7]Lawrence E O.Rapid fault isolation of F/A-18E/F fibre channel network avionics[C]//IEEE Autotestcon Conference,2007:241-249.
[8]黄浩益,黄栋杉,徐晓飞.光纤通道技术在航电系统中的应用[J].航空电子技术,2005,6(3):9-14.
[9]付中培,吴勇,张建东,等.FC-AE-ASM网络调度算法研究[J].现代电子技术,2011,34(6):108-111.
[10]刘冬冬,张天宏,陈建,等.TTP/C协议的关键特性研究[J].计算机测量与控制,2012,20(10):2769-2772.
[11]朱智林,时辰.周期性任务调度的装箱算法[J].计算机应用,2006,26(3):679-681.
[12]刘鲁源,万仁君,李斌.TTCAN调度算法及其在汽车控制系统中的应用[J].汽车工程,2005,27(1):60-63.
[13]Cruz R.A calculus for network delay,part I:Network elements in isolation[J].IEEE Trans Information Theory,1991,37(1):114-131.
[14]周天然,宋丽茹,熊华钢,等.林航空电子环境下FC网络的建模与仿真[J].北京航空航天大学学报,2008,34(10):1117-1120.
[15]Tawk M,Zhu Guchuan,Savaria Y,et al.A tight endto-end delay bound and scheduling optimization of an avionics AFDX network[C]//IEEE Digitial Avionics System Conference,2011:1-10.