寿命定义方式对传感器网的设计，尤其是通信协议、任务调度机制的设计具有非常重要的影响。

The defining method for sensor network's lifetime has great impact on the design of a sensor network, especially on the design of communication protocol and task scheduling mechanism.

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Quartz在开源任务调度框架中的翘首，它提供了强大任务调度机制，难能可贵的是它同时保持了使用的简单性。

Quartz open source eagerly task scheduling framework, which provides a powerful mechanism for task scheduling, valuable is that it while maintaining the simplicity of use.

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在该任务模型上分析了二种任务调度机制，包括基于优先级的分组调度机制、混合抢占调度机制、FCFS调度机制。

And we analyze three task scheduling schemes based on this task set module, which include hybrid preemptive scheduling, priority-based grouping scheduling and FCFS scheduling.

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