一种多移动充电车在线协同充电策略  

An Online Collaborative Charging Strategy for Multiple Mobile Charging Vehicles

作　　者：张顺淼[1] 林亚彪 王进 ZHANG Shunmiao;LIN Yabiao;WANG Jin(School of Computer Science and Mathematics,Fujian University of Technology,Fuzhou Fujian 350118,China;School of Computer and Communication Engineering,Changsha University of Science&Technology,Changsha Hu’nan 410114,China)

机构地区：[1]福建工程学院计算机科学与数学学院,福建福州350118 [2]长沙理工大学计算机与通信工程学院,湖南长沙410114

出　　处：《传感技术学报》2023年第5期798-808,共11页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61902069,62072056);湖南省重点研发计划(2022GK2019)。

摘　　要：在大规模无线可充电传感器网络(WRSN)中,引入多部移动充电车(MCV)为传感器补充能量可以有效提高充电可靠性。如何协同多MCV进行充电规划是提高WRSN性能的关键,为此提出一种基于注意力机制的多MCV在线分布式协同充电算法(OCAMD)。首先根据能耗率对传感器进行分级,结合传感器节点的距离和能量属性,采用注意力机制在线选择充电节点,并自适应调整充电时间。其次在满足WRSN正常运行的基础上,确定网络中所需的MCV数量。最后提出分布式协同算法,确保MCV与充电节点一一对应,同时均衡多MCV的充电负载。仿真结果表明,与当前主流的几种协同充电算法相比,OCAMD能有效提高传感器的存活率和MCV的能量利用率。In a large-scale wireless rechargeable sensor networks(WRSN),the charging reliability can be effectively improved by employing multiple mobile charging vehicles(MCVs)to replenish energy for the sensors.Given that how to collaborate the charging planning of multi-MCV is the key to improve the performance of WRSN,an attention-mechanism-based multi-MCV online distributed cooperative charging algorithm(OCAMD)is proposed.Firstly,the sensors are classified according to their energy consumption rate.Combined with the distance and energy properties of sensor nodes,the attention mechanism is used to select charging nodes online and adaptively adjust the charging time.Secondly,on the premise of satisfying the normal operation of the WRSN,the number of MCVs required in the network is determined.Finally,a distributed cooperative algorithm is proposed to ensure the one-to-one correspondence between MCVs and charging nodes,and to balance the charging load of multi-MCV simultaneously.The simulation results show that the OCAMD can effectively improve the survival rate of sensors and the energy utilization rate of MCVs compared with several state-of-the-art collaborative charging algorithms.

关 键 词：无线可充电传感器网络 分布式协同算法 注意力机制 充电路径规划 移动充电车 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]