摘要
大射电望远镜馈源舱的二次精确定位控制是FAST项目成功实施的关键技术之一,该文对其控制技术进行了较为深入的研究,提出了以硬件中断为基本时钟源、以实时多任务操作系统RTLinux为开发平台的实时控制方案,并且利用操作系统提供的硬件中断服务、中断驱动线程、管道以及共享物理内存等技术设计了软件系统,最后在建造的缩尺实验平台上进行了实验验证,取得了预期的控制效果。
To locate the feed support system accurately is one of the key technologies for constructing a five hundred meters aperture spherical telescope(FAST)successfully.The control technology of the feed support system is studied in this paper.A real design strategy based on hard real-time operating system--RTLinux and hardware interrupt used as real -time clock is proposed.Some advanced technologies such as the service of hardware interrupt ,interrupt driven thread,fifos and sharing physical memory are utilized for developing the system.Finally,the control system is applied on a test scale platform successfully.The result shows the efficiency of the system.
出处
《计算机工程与应用》
CSCD
北大核心
2002年第3期216-218,共3页
Computer Engineering and Applications
基金
中科院创新工程重大项目(编号:KJCX1-X-01)资助
清华大学机械工程学院重点基金(编号:091202001)支持
