作　　者： ; ; ;

机构地区： 重庆大学电气工程学院输配电装备及系统安全与新技术国家重点实验室

出　　处： 《计算机应用与软件》 2009年第5期162-165,共4页

摘　　要： 介绍实时操作系统仿真框架Xenomai和操作系统自适应域环境Adeos(Adaptive Domain Environment for Operating System)的基本原理。分析带有中断屏蔽功能的Adeos中断管道机制,以及用户态下混合执行模式的实时任务被抢占和"优先级反转"问题。应用Xenomai的实时核构建了Xenomai/Linux双内核实时机制;通过Xenomai提供的可插式接口仿真模块实现了基于RTAI API的应用程序编程;结合IPC等具体硬件实现了一套模拟小型电站任务的实时测控系统。运行结果显示系统满足电力系统硬实时的时限要求且运行稳定。 The principles of Real-time Operating System emulation framework-Xenomai and adaptive domain environment for Operating System Adeos are briefly introduced. Adeos interrupt pipeline mechanism which has Xenomai interrupt shields is studied and so are the problems of a real-time task being preempted and a priority inversion, which occurs in mixable execution modes for tasks embodied in User-Space. The Xenomai real-time kernel is used to establish Xenomai-Linux dual-kernel real-time mechanism,and by using pluggable interface emulation module which Xenomai offers,the application programming based on RTAI API is realized. Meanwhile, a real-time measuring and control system which simulates the environment of a small electric substation has also been made on an IPC with some necessary hardware modules. The obtained results show that the system runs sound and meets hard real-time performance for electrical power systems.

关 键 词： 实时操作系统仿真框架 操作系统自适应域环境 仿真模块 实时

领　　域： [自动化与计算机技术] [自动化与计算机技术] [农业科学] [农业科学]