主着陆场通信系统设计与实现

Design and Implementation of Communication System About the Main Flight System

主着陆场系统是载人航天系统的一个重要组成部分,负责完成飞船有效载荷的回收和宇航员的快速搜救.通信系统是其信息中枢.本文利用操作系统消息循环机制、定时器技术,设计了"异步查询”和多种数据处理模型,保证了数据链路的畅通,实现了多路实时信息的汇集与分发.实践证明系统是实用、可靠的.

The main flight strip system is an important part of manned spacecraft project for callback the return modules and rescuing the astronaut in time, and the communication is the information pivot of it. The paper makes use of the message loop mechanism of operation system and the technology of timer, designs the asynchronous query and the model of data processing, ensures the data link, realizes gathering and distributing of the information. The fact proves the communication system is of practicality and reliability.