基于RTAI的uClinux硬实时性能的实现  

Implementation of hard real-time performance of uClinux based on RTAI

作　　者：范海涛[1] 王树民[1] 

机构地区：[1]清华大学电机工程与应用电子技术系,北京100084

出　　处：《电力自动化设备》2006年第3期66-68,72,共4页Electric Power Automation Equipment

摘　　要：uClinux嵌入式操作系统具有优良的稳定性和网络功能,然而其不支持硬实时任务的缺陷却极大地限制了它在高实时性监控领域的应用。介绍了嵌入式实时操作系统在电能质量监控领域中的应用,以及uClinux系统的特性。利用实时应用接口RTAI(Real Time Application Interface)对uClinux系统的实时性进行了扩展,采用对内核进行小规模改动的双内核方法实现Linux系统硬实时特性。对比实验可见RTAI/uClinux双内核系统具有良好的实时性能。uClinux embedded operating system has great advantages in reliability and network functions,but its limitation in supporting hard real-time tasks seriously restricts its popularization. The application of embedded real-time operating system in energy quality monitoring and control system is introduced,as well as the features of uClinux system. RTAI（Real Time Application Interface ） improves the real-time performance of uClinux operating system and enables Linux to realize hard real-time functions by dual-kernel mode with few modifications. Tests show that the RTAI/uClinux system has good real-time performance.

关 键 词：嵌入式系统 RTAI 硬实时 

分 类 号：TP316.2[自动化与计算机技术—计算机软件与理论]