摘要
提出了一种"面向分布式数控系统的自适应调度框架",该调度框架综合利用"数控系统任务优先级动态设定"和"数控系统任务的周期自适应调整"。在"数控系统任务的周期自适应调整"中采用动态设定数据信息流缓冲区的上溢、下溢警戒区,并且通过"时间系列"模型预测任务周期观测时间"t",能够很好地预防数据信息流的上溢和下溢,使系统在很短时间内收敛到稳定状态,有效地提高了数控系统的加工速度和加工质量。
An ＂adaptive scheduling framework for distributed CNC system＂ is proposed. The scheduling framework utilizes comprehensively ＂CNC system task dynamic priority setting＂ and ＂CNC system task period adaptive adjustment＂. In ＂ CNC system task period adaptive adjustment＂, data stream buffer overflow and underflow warning area are set dynamically, ＂time series model＂ is used to predict the observation period of time ＂t＂, it can well prevent flow data overflow and underflow, enables the system to converge to stable state in a short period of time, and effectively improves the machining speed and quality of the CNC system.
出处
《制造技术与机床》
北大核心
2016年第12期133-137,共5页
Manufacturing Technology & Machine Tool
关键词
分布式数控
自适应调度框架
信息流
时间系列模型
distributed CNC system
adaptive scheduling framework
information flow
time series model
