基于VxWorks的DCS现场控制站软件设计与应用

现场控制站是DCS的核心,完成系统的主要控制功能和数据的采集与输出。采用V xW orks嵌入式系统,基于其高效的任务调度算法和实时性,对DCS现场控制站软件进行了设计。基于时间片轮转和任务优先级的混合调度算法,有效地提高了系统内核的效率。通信程序采用监听并发多任务模式,不仅减少了通信压力,而且解决了并发模式下系统资源消耗高的弊端。

Design and Application of DCS Field-Control Station Based On Vx Works

Field-Control Station is the kernel of Distributed Control System(DCS),which accomplishes the most control functions and input and output of the data.Based on the high-efficient task,The paper designed software package for the field control station of DCS based on its highly efficient task dispatch algorithms and real-time effects,using VxWorks embedded system.The mixed dispatch algorithm derived from the combination of round-robin scheduling and task priority has greatly enhanced the efficiency of the inte...