摘要
为了提升新一代智能电能表中微内核实时嵌入式操作系统中任务调度算法性能,文中提出一种微内核动态优先级任务调度方法。在该方法中,将智能电能表中的任务划分周期性任务和事件触发任务,引入最高优先级调度和最早截止时间调度机制,对事件触发任务分配动态优先级。同时,针对低优先级任务可能存在得不到调度的情况,采用任务补偿调度策略,确保各任务能够及时得到执行。通过案例分析验证了文中方法的有效性,进而为新一代智能电能表实时任务处理应用奠定基础。
In order to promote the performance of task scheduling in the embedded real-time operation system for new generation smart electricity meter,this paper presents a kind of dynamic priority task scheduling method.In this method,the tasks built in the smart electricity meter are divided into two types of tasks,including the period tasks and the event-happened tasks.Among the event-happened tasks,the earliest deadline first schedule is devoted to allocate the priority of tasks.At the same time,in order to make the lower priority of tasks get response during the task schedule,the task compensation scheduling strategy is adopted to ensure that each task can be executed in time.Finally,case analysis demonstrates the effectiveness of the proposed method,which lays a foundation for the application of real-time task processing of a new generation of the smart electricity meter.
作者
侯慧娟
李梦溪
郭思维
Hou Huijuan;Li Mengxi;Guo Siwei(Marketing Service Center,State Grid Henan Electric Power Company,Zhengzhou 450052,China)
出处
《电测与仪表》
北大核心
2023年第11期180-187,共8页
Electrical Measurement & Instrumentation
基金
国家电网有限公司总部管理科技项目(5700-202114202A-0-0-00)。
关键词
智能电能表
任务调度
补偿调度
微内核
smart electricity meter
task scheduling
compensation scheduling
micro-kernel
