航天飞行训练仿真系统主控机软件的实时机制  

Realtime Mechanism of Maincontrol Software in Space Training Simulation System

作　　者：李洁[1] 连顺国[1] 薛亮[1] 

机构地区：[1]航天医学工程研究所,北京100094

出　　处：《计算机仿真》2004年第11期247-249,共3页Computer Simulation

摘　　要：主控机主要管理航天飞行训练仿真系统的时钟、时序 ,从而提高整个系统的同步性。该文在深入分析POSIX实时扩展机制的基础上 ,从实时时钟的产生、网络发送、传输以及软件设计等多个方面 ,详细阐述了提高主控机软件实时性的具体实现策略。该软件可靠性强 ,已用于实际航天飞行训练仿真系统中 。In order to improve the synchronization performance of a space training simulation system, a maincontrol computer was designed to administrate the clocktime and time sequence of the whole system . Analyzing POSIX realtime extensive mechanism deeply, this paper discusses the implemention strategies in detail from some ways, such as production, sending ,transition to the realtime clocktime signal , and software design ,in order to improve the synchronization of the maincontrol software .With high reliability, this software has been used in the real space training simulation system, and is able to administrate the synchronization performance and time sequence of the simulation system.

关 键 词：实时 时钟 线程 定时器 信号 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]