基于DCPS通信模型的分布式实时飞行仿真  

DCPS Communication Model Based Distributed Real-Time Flight Simulation Study

作　　者：郑书朋[1] 郑淑涛[1] 朱思斌[1] 韩俊伟[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,黑龙江哈尔滨150001

出　　处：《江南大学学报（自然科学版）》2011年第1期26-31,共6页Joural of Jiangnan University (Natural Science Edition)　

基　　金：教育部新世纪优秀人才支持计划项目(NCET-04-0325)

摘　　要：为满足飞行模拟机仿真模型对数据传输的实时性和可预测性要求,基于以数据为中心的发布/订阅通信模型(DCPS),设计实现了一种分布式实时飞行仿真系统。对DCPS通信机制、主题与订阅的匹配语义及其提供的质量服务策略(Qos Policy)进行了深入系统的研究,提出了飞行仿真系统的组件化设计方法,并给出了一致的组件接口和实时数据传输的实现步骤。在用于研究的Boeing 737-800飞行模拟机上对该方法进行了试验验证,结果表明:仿真节点间的通信时延稳定在0.2 ms以内,时延抖动不超过5μs,该方法有效地满足了飞行模拟机仿真模型对数据传输的实时性和可预测性要求。To meet the flight simulation models＇ real-time and predictability communication requirements,a distributed real-time flight simulation system based on DCPS is designed and implemented.The communication mechanism,topic-subscription fitting semantics and Qos Policies of DCPS are systematically studied.Based on the DCPS,the component design method for flight simulation system is proposed and unified component interfaces are presented.Meanwhile,steps of real-time communication based on DCPS are also given.The distributed real-time flight simulation system based on DCPS is verified on a research flight simulator,the experiment results show that the communication model stabilize time delay between simulation nodes within 0.2 ms,and the communication jitter does not exceed 5 μs which fulfill the flight simulation model′s communication requirements on real-time and predictability.

关 键 词：分布式系统 通信模型 实时飞行仿真 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]