【作者】 张晓云； 岳继光； 杨麟祥；

【Author】 ZHANG Xiao-yun YUE Ji-guang YANG Lin-xiang School of Electronic and Information Engineering,Tongji University,Shanghai 200092,China

【机构】 同济大学电子与信息工程学院；

【摘要】 为了在单处理器上实现可靠的实时多任务控制,引入任务调度思想。以油温控制系统为例,应用PID-模糊复合控制器,讨论在单处理器上实现多个油温控制器时,由于算法切换,会引起处理器"过载",因此在μC/OS-Ⅱ实时嵌入式操作系统平台上,应用基于服务器的零星任务调度策略。实验证明,此方法能够有效地调度各个实时控制任务,保证它们满足各自的截止期限,获得了较好的控制效果。更多还原

【Abstract】 In order to ensure successful real-time control tasks for a single processor, task scheduling method is adopted, which is a new re- search area that has emerged.Taking the oil temperature control system for example,the execution time of the designed PID-Fuzzy controller may change abruptly between different modes,and the processor may be overloaded.Therefore using a periodic server to deal with sporadic task based on μC/OS-Ⅱ is necessary,it can schedule all real-time tasks effectively. Experiments show it is feasible and good control perfor- mance is achieved.更多还原