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为了提高无线传感器监测网络系统的容错性和优化系统的工作寿命,基于连通图提出监测图的概念,并在此基础上提出一种在高节点失效率情况下,有效延长无线传感器监测网络工作寿命的动态节点调度策略.通过对由目标节点和传感器节点组成的监测图的计算,在各个子监测图内实现分布式、动态的节点调度.所提出的节点调度策略是一种回合制的动态调度策略,在每一回合根据传感器节点当前的电能储备以及传感器节点和目标节点度的大小进行节点调度,在提高系统的工作寿命的同时有效改善容错性.通过对工作参数的设置可以实现在能耗与容错性之间进行权衡.
In order to improve the fault tolerance of the wireless sensor network system and optimize the working life of the system, the concept of the monitoring graph is proposed based on the connectivity diagram. Based on this, a new method is proposed to prolong the working life of the wireless sensor network under the condition of high node failure rate The dynamic node scheduling strategy is proposed.The distributed and dynamic node scheduling in each sub-monitor map is achieved through the calculation of the monitoring map composed of the target nodes and the sensor nodes.The proposed node scheduling strategy is a turn-based dynamic scheduling Strategy, node scheduling is carried out on the basis of the current energy reserves of the sensor nodes and the size of the sensor nodes and the target nodes on each turn, which effectively improves the fault tolerance while improving the working life of the system. By setting the working parameters, Tolerance and trade-off between.