【摘 要】
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For WSN node applications in which the reliable operations with limited resources are required,a scheme of Dual Priority Scheduling with Preemption Avoidance(DPS-PA)is proposed.The scheme approached t
【机 构】
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Korea Electronics Technology Institute Sangam-dong,Mapo-gu,Seoul,Korea
【出 处】
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第二届中国传感器网络学术会议暨第一届中韩传感器网络学术研讨会(CWSN2008\CKWSN2008)
论文部分内容阅读
For WSN node applications in which the reliable operations with limited resources are required,a scheme of Dual Priority Scheduling with Preemption Avoidance(DPS-PA)is proposed.The scheme approached the event driven which has smaller code size and more rapid response time than ordinary multi-threading scheme.Also there is relatively a lager profit for power management.In this scheme,the MAC and Network protocol,devices access and applications must be simultaneously executed.It schedules tasks of two types that are periodic tasks and sporadic tasks.Each task has a piece of simple atomic code suchlike interrupt service routine.In DPS-PA scheme,it is difficult to make those complicated software modules with task level programming like multi-threading scheme.In this paper, we propose a new program design model for the DPS-PA.It has the hierarchical model based on the software block and the execution model based on state machine.
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