一种高效的持续有向栅栏覆盖算法  

An effective continuous directional barriers coverage schemein wireless recharging sensor networks

作　　者：范兴刚[1,2] 廉晓聪 贾立刚 马天乐 谷文婷 姜新阳 刘贾贤 FAN Xinggang;LIAN Xiaocong;JIA Ligang;MA Tianle;GU Wenting;JIANG Xinyang;LIU Jiaxian(College of Computer Science and Technology,Zhejiang University of Technology,Hangzhou 310023,China;College of Zhijiang,Zhejiang University of Technology,Shaoxing 312030,China;Shaoxing ZKSMobile IOT Technology Co.,Ltd.,Shaoxing 312030,China)

机构地区：[1]浙江工业大学计算机科学与技术学院,浙江杭州310023 [2]浙江工业大学之江学院,浙江绍兴312030 [3]绍兴中科移联信息科技有限公司,浙江绍兴312030

出　　处：《浙江工业大学学报》2024年第4期457-464,共8页Journal of Zhejiang University of Technology

基　　金：浙江省自然科学基金资助项目(LY20F020024);柯桥区揭榜挂帅项目(2021JBGS402)。

摘　　要：如何高效实现持续有向栅栏覆盖是无线充电传感器网络的研究热点,采用射频能量捕获技术可以解决栅栏中节点能量受限的问题。在已知网络区域中构建栅栏的节点分布和候选部署位置的情况下,研究射频能量源(Energy source,ES)的部署方案,从而满足所有节点的充电需求。首先,确定网络区域中的栅栏矩形;然后,提出一种基于有向发射的射频能量源最优部署算法(OdepD算法),根据候选位置与栅栏矩形的位置关系得到各个ES的射频能量发射方向和角度,根据有向能量发送模型和充电需求计算各个ES的发射功率;最后,以最小化网络充电总能耗为目标,通过离散粒子群优化充电部署位置,确定最终部署策略。仿真结果证明:OdepD算法可以明显降低网络充电总能耗,高效地实现持续栅栏覆盖。How to effectively realize continuous directional barriers coverage is a hot research topic in wireless recharging sensor networks,radio frequency energy harvesting can solve the problem of node energy limitation within barriers.In the certain network area,when the node locations of the barriers and the candidate deployment locations of energy source(ES)will be deployed,it needs to study the deployment scheme of ES to meet the energy needs of all nodes.Firstly,the barrier rectangle in the network area will be determined.Then an optimal deployment strategy for ES based on directional emission(OdepD algorithm)is proposed.The energy transmission directions and angles of ES are determined by the relationship between their candidate locations and barrier rectangle.Their transmission power is calculated according to the directional charging model and charging demand of barriers coverage.Finally,to minimize the total network charging energy consumption,the method of discrete particle swarm optimization is used to iteratively optimize the charging deployment until the optimal deployment strategy of ES is obtained.Simulation results show that the OdepD algorithm can significantly reduce the total charging energy consumption of the network and efficiently achieve continuous barriers coverage.

关 键 词：栅栏覆盖 有向能量发送模型 发送能耗 能量源部署 充电效率 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]