全系统网络延迟分析方法  

Analytical Method for Overall Time Delay of System

作　　者：黄安祥[1] 高申玉[1] 叶培华[1] 黄云洋 

机构地区：[1]空军指挥学院战役训练中心,北京100097 [2]北京蓝天航空科技有限责任公司,北京100087

出　　处：《系统仿真学报》2012年第6期1223-1226,1242,共5页Journal of System Simulation

摘　　要：针对飞行仿真系统实时性要求高的特点,构建了以以太网、实时反射内存网及现场总线技术等多种技术为主的飞行仿真系统分布式网络结构。分析了影响系统延迟的因素及其改进的方法,提出并建立了以太网、实时反射内存网及现场总线技术的延迟计算的数学模型,并提出了一种综合估算全系统时间延迟的方法。这些方法在相关的产品研发中得以运用并取得很好的实时性效果。Aiming at the high request for time reliability of the flight simulation system,the distributed net for the flight simulation system was constructed,adopting the ether net technology,the SCRAMnet technology,the CAN technology,etc.The factors were analyzes which affected the system time delay,and the ameliorative methods,and it also constructed the mathematic models to calculate the time delay of the ether net,the SCRAMNet and the CAN.A model was put forward to calculate the overall time delay of the system.By using these models,the time reliability problem in flight simulator was solved.

关 键 词：以太网 反射内存网 现场总线 时间延迟 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]