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基于蝙蝠算法的执行器路径规划算法
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作者 张华 李跃飞 郑治武 《传感技术学报》 CAS CSCD 北大核心 2023年第9期1445-1451,共7页
无线传感器与执行器网络中执行器的路径对网络能耗有着重要影响,最大化覆盖节点是收集节点数据的重要前提。为此,提出基于双重聚类的执行器路径规划(Dual Clustering-based Path Planning of Actuator,DCPA)算法。DCPA算法先利用模糊化C... 无线传感器与执行器网络中执行器的路径对网络能耗有着重要影响,最大化覆盖节点是收集节点数据的重要前提。为此,提出基于双重聚类的执行器路径规划(Dual Clustering-based Path Planning of Actuator,DCPA)算法。DCPA算法先利用模糊化C-均值聚类算法构建驻留点(Rendezvous Points,RPs),并依据网络失效节点动态地调整RPs位置。再利用密度峰值聚类算法将这些RPs划分成多个簇,簇数等于执行器的个数。然后,利用蝙蝠算法规划每个执行器遍历RPs的路径。考虑到蝙蝠算法的局部搜索能力的不足,加入惯性权重对蝙蝠算法进行改进。性能分析表明,相比于同类算法,DCPA算法在网络能耗和收集数据性能方面存在优势。 展开更多
关键词 无线传感器执行器网络 路径规划 模糊化c-均值 密度峰值聚类算法 蝙蝠算法
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A model to determining the remaining useful life of rotating equipment,based on a new approach to determining state of degradation 被引量:3
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作者 Saeed RAMEZANI Alireza MOINI +1 位作者 Mohamad RIAHI Adolfo Crespo MARQUEZ 《Journal of Central South University》 SCIE EI CAS CSCD 2020年第8期2291-2310,共20页
Condition assessment is one of the most significant techniques of the equipment’s health management.Also,in PHM methodology cycle,which is a developed form of CBM,condition assessment is the most important step of th... Condition assessment is one of the most significant techniques of the equipment’s health management.Also,in PHM methodology cycle,which is a developed form of CBM,condition assessment is the most important step of this cycle.In this paper,the remaining useful life of the equipment is calculated using the combination of sensor information,determination of degradation state and forecasting the proposed health index.The combination of sensor information has been carried out using a new approach to determining the probabilities in the Dempster-Shafer combination rules and fuzzy c-means clustering method.Using the simulation and forecasting of extracted vibration-based health index by autoregressive Markov regime switching(ARMRS)method,final health state is determined and the remaining useful life(RUL)is estimated.In order to evaluate the model,sensor data provided by FEMTO-ST Institute have been used. 展开更多
关键词 remaining useful life(RUL) prognostics and health management(PHM) autoregressive markov regime switching(ARMRS) health index(HI) Dempster-Shafer theory fuzzy c-means(FCM) Kurtosis-entropy DEGRADATION
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