基于uCOS-II的嵌入式数控系统实时性分析  

Real-time Analysis of Embedded CNC System Based on uCOS-II

作　　者：刘淼[1] 王田苗[1] 魏洪兴[1] 陈友东[1] 

机构地区：[1]北京航空航天大学机器人研究所,北京100083

出　　处：《计算机工程》2006年第22期222-224,226,共4页Computer Engineering

摘　　要：提出了一种嵌入式数控系统的软硬件体系结构,该系统采用实时操作系统uCOS-II和ARM嵌入式微处理器构建。结合实时多任务操作系统的性能指标,分析了嵌入式实时操作系统uCOS-II的时间特性,并给出了uCOS-II中最长时间特性的计算方法,同时,在数控系统的平台上,测试了系统任务调度各个阶段所用时间,并对此系统的实时性和稳定性进行了分析。结果表明,基于uCOS-II和ARM所构建的嵌入式数控系统的实时性好,且具有低成本、高性能的特点,具有广泛的应用前景。This paper discusses a hardware and software architecture of embedded numerical control system. This system is built on uCOS-Ⅱ and ARM. The timing specification of uCOS-Ⅱ is analyzed based on the performance of RTOS. The method for getting the longest timing specification of uCOS-Ⅱ is described. And the time of system schedule is measured, The paper also analyzes the system real-time performance and stability. The result indicates that this embedded numerical control system has perfect real-time character, low cost and high-performance, It has extensive application.

关 键 词：实时操作系统 uCOS-Ⅱ ARM 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]