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带有执行器的无线传感器网络是指在传统无线传感器网络中加入执行节点,形成传感器节点、执行节点和基站共同构成的三层监控网络。根据执行器在能量、计算能力和感知能力方面的优势,提出建立应用于事件调度的双环分簇算法。算法将执行器连接成双环结构,提升网络在线扩展能力的同时,也为无线传感器网络满足事件驱动构建基础。仿真实验证明,此算法能够有效降低网络能耗,随着节点数目的增加和监控领域的扩大,表现更加凸出。
The wireless sensor network with actuator refers to the three-layer monitoring network formed by adding executive nodes, forming sensor nodes, implementing nodes and base stations in the traditional wireless sensor network. According to the advantages of the actuator in terms of energy, computing power and perceptive ability, a two-ring clustering algorithm for event scheduling is proposed. The algorithm connects actuators into a double-loop structure, which enhances the online expansion capability of the network and satisfies the event-driven construction foundation for the wireless sensor network. Simulation results show that the proposed algorithm can effectively reduce the network energy consumption. With the increase of the number of nodes and the expansion of the monitoring area, the performance is more prominent.