实时多任务操作系统在电厂监控系统中的应用

The Application of Real Time Multitask Operating System in Supervision System of a Power Plant

介绍实时多任务操作系统在电厂监控系统中的应用。首先阐述ＡＭＸ８６实时多任务操作系统的特点，在该系统中任务的建立、任务的激活和任务的状态转换条件、操作系统的定时功能及这些功能在电厂监控系统中的实际应用。然后介绍实际监控系统任务的定义、各任务的触发、唤醒关系和一些程序设计问题。其中包括用ＴＳＲ程序建立数据区，扩展内存的图象信息存取等。

The application of real time multitask operating system in the supervision system of a Power plant is introduced' In the first place,the distinguished features of AMX 86 real time multitask operating sysem,such as,the definition and creation of tasks in the system, the four status of tasks such as being idle, ready,running and waiting in the system, and the pause which appears in debugging are mentioned' The trigger of tasks and the status changeconditions of tasks, the task scheduling algorithm, the timer functions of the operating systemand the practicsl application of these fUnctions in the supervision system of a power plant is also presented' Mentioned in the paper is also, the definition of tasks in the real supervision system of the power plant,such as, the main , the access of disk,communication, warning and printing tasks,the trigger and waking relations of tasks and some programming problems,including the establishment of the data area using TSR program and the access of graphics information in the extended memory.