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遥感卫星应用系统的一种多任务并行调度方法
引用本文:李颖,孙晓良.遥感卫星应用系统的一种多任务并行调度方法[J].航天器工程,2010,19(4):99-104.
作者姓名:李颖  孙晓良
作者单位:航天恒星科技有限公司,北京,100086
摘    要:任务调度是遥感卫星地面应用系统管理控制的一个重要功能。为了解决系统生产任务量大,并行调度多等难点,文章提出了基于任务优先级生产策略、面向遥感卫星地面应用的一种多任务并行调度方法,并针对任务特点设计了一套新的线程池运行机制用于多线程的管理。该方法提高了任务调度效率和系统资源利用率,并行执行的任务数量大,系统资源消耗低,任务执行的延迟率减小,解决了遥感卫星地面应用系统时效性低的问题。

关 键 词:遥感卫星  应用系统  多任务  并行调度  优先级  多线程

A Method of Parallel Scheduling for Multitask in Remote-sensing Satellite Ground Application System
LI Ying,SUN Xiaoliang.A Method of Parallel Scheduling for Multitask in Remote-sensing Satellite Ground Application System[J].Spacecraft Engineering,2010,19(4):99-104.
Authors:LI Ying  SUN Xiaoliang
Institution:(Space Star Technology Co. ,Ltd., Beijing 100086, China)
Abstract:Task scheduling is very crucial in remote-sensing satellite ground application system. In order to solve the problem of mass tasks and parallel scheduling, this paper presents a method of multitask parallel scheduling orienting the remote-sensing satellite ground application system, which is based on the strategy of task priority level, and designs a new mechanism of thread-pool to manage multi-threads on the basis of the task characteristics. The method not only improves the scheduling efficiency and the utilization of system resources, but also increases the time efficiency.
Keywords:remote-sensing satellite  ground application system  multitask  parallel scheduling  priority  multi-threads
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