无线传感器网络中节省能量的目标跟踪算法  

An Energy-Efficient Target Tracking Algorithm for Wireless Sensor Networks

作　　者：张丰 张淳 Zhang Feng;Zhang Chun(China Wiser Technology Co.,LTD.,Nanjing,210003,China;School of Computer Science,Nanjing University of Posts and Telecommunications,Nanjing,210023,China)

机构地区：[1]南京中纬自动化技术有限公司,南京210003 [2]南京邮电大学计算机学院软件学院,南京210023

出　　处：《仪器仪表用户》2018年第8期1-5,共5页Instrumentation

基　　金：江苏省自然科学基金(Grant No.BK20140875)

摘　　要：目标跟踪是无线传感器网络中的一个重要应用。由于传感器节点携带的电池能量有限,且处于工作状态时消耗的能量要大于感知状态和休眠状态,如何在降低节点的能量消耗和保证跟踪精度之间找到一个平衡点,是一个需要解决的问题。因此,一种节省能量的目标跟踪算法被提出。在每个采样时间段,选择出一个节点作为调度节点,调度节点指挥普通节点在3种模式之间进行转换,只选择一部分节点处于工作和感知状态,其余节点处于休眠状态。仿真结果显示,和其他跟踪算法相比,这种算法能够减少能量消耗,降低跟踪误差。Target tracking is an important application of the wireless sensor networks. Due to the limited battery resources of sensors, the energy consumption of active mode is higher than that of sensing or sleeping mode. Hence, how to find a tradeoff between the energy consumption and tracking accuracy is a problem. An energy efficient target tracking algorithm is proposed.During each sampling interval, a sensor node is selected as a dispatcher. Ordinary nodes are tuned between three modes according to the order of the dispatcher. A set of nodes are selected to be at active and sensing modes. Other nodes keep in sleeping mode.Simulation results show that the proposed algorithm can decrease the energy consumption and reduce the tracking error.

关 键 词：无线传感器网络 目标跟踪 能量消耗 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]