飞行训练仿真系统中实时数据同步模型设计与实现  

Design and Implementation of Real Time Data Synchronization Model in Flight Training Simulation System

作　　者：林万洪[1,2] 邓华[1] 熊颖[1] 晁建刚[1,2] 杨进[1] 

机构地区：[1]中国航天员科研训练中心,北京100094 [2]中国航天员科研训练中心人因工程重点实验室,北京100094

出　　处：《载人航天》2017年第2期191-196,共6页Manned Spaceflight

基　　金：总装备部预研基金(9140c770204150c77318);总装重点试验技术课题(2013SY54B1301)

摘　　要：针对下一代航天飞行训练模拟器分布式仿真系统对仿真数据管理与实时同步的高要求,分析了国内外仿真系统数据同步技术发展现状,在前期任务数据分发模型的基础上,提出了基于组播、共享内存和订阅发布技术的局域网仿真数据高速同步方法,设计了一种基于数据语义标识的通信模型。仿真试验表明:此模型合理高效,与上一代同步技术比较,同步时钟提高到10 ms内,相同节点数目时,40 ms仿真周期内数据量提高了近一倍,开发效率提高了一倍以上。According to the higher requirements on the simulation data management and real-time synchronization of the next generation distributed simulation system of space flight training simulator, the development status of data synchronization technology in simulation systems was analyzed. On the basis of the data distribution model adopted by previous simulation systems, a new method of high speed synchronization of local area network simulation data based on multicast, shared memory and SUB-PUB was proposed in this paper. In addition, a communication model based on data se-mantic identification was designed. The simulation results showed that this model was reasonable and efficient. As compared with the previous generation of synchronous clock synchronization technolo-gy, the synchronize clock was raised up to 10ms, the ability of synchronization was nearly doubled under the same number of nodes within 40 ms simulation period, and the development efficiency was more than doubled.

关 键 词：飞行训练仿真系统 分布式仿真 数据同步 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]