密度控制是一种常用的延长大规模传感器网络工作寿命的方法,现有的密度控制算法大多基于全向感知模型,而满足有向感知模型的传感器网络也颇具实际应用价值。文中提出一种基于有向感知模型的传感器网络密度控制算法,在保证一定网络覆盖能力的前提下,有效地休眠冗余有向感知节点,降低网络总能耗,延长网络工作寿命。 Density control is a commonly used method to prolong the working life of large-scale sensor networks. Most existing density control algorithms are based on the omnidirectional perception model, and sensor networks that satisfy the directed sensing model are also of practical value. In this paper, a sensor network density control algorithm based on directed sensing model is proposed, which can effectively dormancy redundant directional sensing nodes, reduce the total network energy consumption and prolong the working life of network under the premise of ensuring certain network coverage.