TinyOS任务调度机制与实时调度构件设计  

Schedule mechanism of TinyOS and its real-time schedule component design

作　　者：刘奎安[1] 郭文生[1] 桑楠[1] 

机构地区：[1]电子科技大学计算机科学与工程学院,成都610054

出　　处：《计算机应用》2007年第11期2740-2742,共3页journal of Computer Applications

基　　金：国家863计划项目(2005AA1Z2120)

摘　　要：TinyOS是一个开源的构件化操作系统,它采用构件化描述语言nesC进行开发,主要针对资源非常有限的无线传感器网络节点而设计。分析了TinyOS-2.x的任务调度机制,针对其在实时应用领域的调度缺陷,设计并实现了一种软实时任务调度构件。根据构件在TOSSIM仿真器中的验证分析,能有效增强TinyOS的实时性能。TinyOS is an open-source component operating system for sensor networks nodes that has very limited resources. TinyOS was implemented in component-developing language nesC. Through analyzing the schedule mechanism of TinyOS-2. x, a soft real-time scheduler component was designed and implemented for real-time applications. Simulation results in TOSSIM demonstrate that the soft real-time component improves the real-time performance of TinyOS.

关 键 词：无线传感器 TINYOS 实时 构件设计 TOSSIM 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论] TP311[自动化与计算机技术—计算机科学与技术]