基于方向决策的移动锚节点动态路径规划方法  

Dynamic Path Planning Method of Mobile Anchor Node Based on Direction Decision

作　　者：高美凤 刘洋[1] GAO Meifeng;LIU Yang(Key Laboratory of Advanced Process Control for Light Industry,Jiangnan University,Ministry of Education,Wuxi Jiangsu 214122,China)

机构地区：[1]江南大学轻工过程先进控制教育部重点实验室,江苏无锡214122

出　　处：《传感技术学报》2018年第6期932-936,共5页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61373126);江苏省自然科学基金项目(BK20131107)

摘　　要：在基于移动锚节点的无线传感器网络定位过程中,移动锚节点的路径规划问题对定位性能有着重要的影响,但现有的路径规划方法没有充分考虑到网络内未知节点的密度以及分布情况,定位效率低且成本大,因此提出了一种基于方向决策的移动锚节点动态路径规划方法 CWDP(Dynamic Path Planning Based on Orientation Decision-Classed Weighted)。首先网络内的未知节点根据连通度阈值对自身进行分级处理,当移动锚节点进入网络区域后,根据通信范围内未知节点的反馈信息,再利用分级权重系数实时决策下一目标的移动方向。仿真结果表明,该方法有效地提高了网络内未知节点的定位覆盖率和降低了定位误差,并节约了定位成本。In the process of wireless sensor network location based on mobile anchor nodes,the path planning problem of mobile anchor nodes has important influence on the positioning performance. However,the existing path planning method does not take full account of the density and distribution of unknown nodes in the networks,the positioning efficiency is low and the cost is large. Therefore,a dynamic path planning method of mobile anchor node based on direction decision is proposed（ Dynamic Path Planning Based on Orientation Decision-Classed Weighted,CWDP）. Firstly,the unknown nodes in the network are graded according to the connectivity threshold. When the mobile anchor nodes enters the network area,according to the feedback information of the unknown nodes located in the communication range,the mobile anchor next moving direction is determined by using the hierarchical weight coefficient in real time. The simulation results show that the proposed method can effectively improve the localization coverage,reduce the localization error of the unknown nodes in the network and save the localization cost.

关 键 词：无线传感器网络 路径规划 移动锚节点 节点定位 定位误差 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]