摘要
为完善辽河流域水体污染控制与治理体系,在辽河流域不同的管理信息系统异构数据源间进行数据交换与共享,需要构建一个数据交换平台.任务调度是数据交换平台的核心部分,主要功能是解析任务模型,动态集成平台资源,驱动整个平台运行.基于辽河流域数据交换平台的系统架构与问题需求,提出一种任务模型,并对系统中任务进行分类,从而引出数据交换平台中的任务调度问题及目标.设计了一个适用于异构数据源间进行数据交换的任务调度模型,阐述了该模型的工作原理及各个部件的主要功能,该模型采用优先级策略来保证任务实时性.最后,通过Java并发机制进行实验模拟,证明了该模型的有效性.
To improve and perfect the system of water pollution control and treatment of Liaohe River valley,we need to build a data exchange platform for data exchanging and sharing betw een heterogeneous data sources of different management information systems of Liaohe River valley.Task Scheduling is one core of the data exchange platform,its major functions are parsing task model,integrating resources dynamically in platform,and driving the w hole platform.According to the system architecture and requirement of data exchange platform of Liaohe River valley,w e introduce a task model,and classify the tasks in system,w hich leads to the problem and target of task scheduling in data exchange platform.We designed a task scheduling model,w hich is applicable to complete data exchanging betw een heterogeneous data sources,and expounded how the model w orks and main function of various parts.The model uses strategy of priority to ensure the real-time tasks.In the end,w e verify the effectiveness of the model through simulation experiment by java concurrency programming.
出处
《小型微型计算机系统》
CSCD
北大核心
2013年第7期1543-1547,共5页
Journal of Chinese Computer Systems
基金
国家水体污染控制与治理科技重大专项(2009ZX07528-006-05)资助
关键词
任务调度
任务调度模型
数据交换
并发
task scheduling
task scheduling model
data exchange
concurrency
