针对低能耗是无线传感器网络协议设计实现的关键问题。对簇头选举算法的随机选举机制进行增加一定确定性因子,使得网络能耗降低。仿真结果表明,改进方案第一节点死亡时间延长了21.9%,最后节点死亡时间延长了40.35% Aiming at the low energy consumption is the key problem of the wireless sensor network protocol design. Increasing the random election mechanism of cluster head election algorithm by a certain certainty factor makes the network energy consumption lower. The simulation results show that the dead time of the first node of the improved scheme is prolonged by 21.9% and the dead time of the last node is prolonged by 40.35%