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Journal of Modern Power Systems and Clean Energy 2015年第2期3卷 269-276页

作者： Jiuqing CAI Changsong CHEN Peng LIU Shanxu DUAN State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhanChina

This study presents a centralized control scheme that coordinates parallel operations of power conditioning system(PCS)for the grid interactions of electric vehicles(EVs)in EV charge-discharge and storage integration *** issues for the control and operation of PCS under various operation modes are discussed,including vehicle to grid(V2G)mode,stand-alone mode and seamless transfer *** intelligent multi-mode charge-discharge method is utilized for the V2G mode,and the parallel control method based on communication network is adopted for the standalone *** addition,a novel seamless transfer strategy is proposed,which is able to implement PCS transition between V2G mode and stand-alone *** detailed process of the seamless transfer between the two modes is *** results are presented to show the performance and feasibility of this strategy.

关键词： centralized control Power conditioning system(PCS) Charge-discharge and storage integration station Vehicle to grid(V2G) Seamless transfer

centralized control Implementation Using Distributed Observer for Meglev Systems 36

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Centralized Control Implementation Using Distributed Observe...

第36届中国控制会议

作者： Qiang Chen Ying Tan Qing Yang Jie Li Iven Mareels College of Mechatronics Engineering and Automation National University of Defense Technology

ISBN: (纸本)9781538629185

In the control of maglev systems,decentralized control structure is widely used due to its *** to the existence of mechanical coupling,the performance of decentralized control is *** paper focuses on designing a centralized controller for a small maglev platform that already has a decentralized control structure.A distributed reduced-order observer is first proposed for one suspension point to estimate the state of other suspension points using the model of the ***,a centralized control is designed and implemented with the help of the proposed decentralized *** simulation results show that centralized control based on distributed observer can reject the state coupling of maglev system and improve the maglev control performances *** future,the proposed distributed observer based centralized controller will be tested on the small maglev platform.

关键词： Maglev centralized control Distributed Observer

Dual-layer efficiency enhancement for future passive optical network

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Science China(Information Sciences) 2016年第2期59卷 172-184页

作者： Yuefeng JI Xiaoxiong WANG Shizong ZHANG Rentao GU Tonglu GUO Zhaozhi GE State Key Lab of Information Photonics and Optical Communications Beijing University of Posts and Telecommunications Beijing Key Laboratory of Network System Architecture and Convergence School of Information and Communication Engineering Beijing University of Posts and Telecommunications

Ever-increasing demands on bandwidth compel us to improve the bandwidth utilization of access networks. It is more important to enhance the efficiency of passive optical networks(PON) than other access technologies, as they are the primary solutions to various access scenarios. To satisfy the demands of improved bandwidth efficiency, we propose a dual-layer(data link layer and network layer) efficiency enhancement scheme for future PON system. Under this architecture, a data-link-layer flexible coding scheme is introduced to extend the downstream link throughput, and a network-layer centralized active queue management(AQM) scheme is introduced to increase bandwidth efficiency. Both of these technologies are designed to suit the future centralized cooperative control mode. The results of an experimental demonstration of the network coding PON scheme reveal the efficiency of the proposed architecture. The results of simulations show that the centralized AQM scheme has a positive influence on queuing delay and jitter. To the best of our knowledge, this is the first time that a data link layer mechanism and a network layer policy have been integrated to provide high efficiency and quality of service in access networks.

关键词： passive optical network bandwidth efficiency network coding active queue management centralized control

controlling the dynamic behavior of decentralized cluster through centralized approaches

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Chinese Physics B 2024年第6期33卷 46-54页

作者：袁大明王培龙王鹏马星宇汪楚云王璟陈怀城王高叶方富 School of Ophthalmology and Optometry Eye HospitalSchool of Biomedical EngineeringWenzhou Medical UniversityWenzhou 325035China Postgraduate Training Base Alliance Wenzhou Medical UniversityWenzhou 325035China Wenzhou Institute University of Chinese Academy of SciencesWenzhou 325011China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China

How to control the dynamic behavior of large-scale artificial active matter is a critical concern in experimental research on soft matter, particularly regarding the emergence of collective behaviors and the formation of group patterns. centralized systems excel in precise control over individual behavior within a group, ensuring high accuracy and controllability in task execution. Nevertheless, their sensitivity to group size may limit their adaptability to diverse tasks. In contrast, decentralized systems empower individuals with autonomous decision-making, enhancing adaptability and system robustness. Yet, this flexibility comes at the cost of reduced accuracy and efficiency in task execution. In this work, we present a unique method for regulating the centralized dynamic behavior of self-organizing clusters based on environmental interactions. Within this environment-coupled robot system, each robot possesses similar dynamic characteristics, and their internal programs are entirely identical. However, their behaviors can be guided by the centralized control of the environment, facilitating the accomplishment of diverse cluster tasks. This approach aims to balance the accuracy and flexibility of centralized control with the robustness and task adaptability of decentralized control. The proactive regulation of dynamic behavioral characteristics in active matter groups, demonstrated in this work through environmental interactions, holds the potential to introduce a novel technological approach and provide experimental references for studying the dynamic behavior control of large-scale artificial active matter systems.

关键词： self-organizing system centralized control dynamics regulation

Mesh Based Multicast Key Management Scheme in Ad Hoc Networks

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Mesh Based Multicast Key Management Scheme in Ad Hoc Network...

2006 8th International Conference on Signal Processing

作者： Mu Haibing Liu Yun School of Electronics and Information Engineering Beijing Jiaotong University

ISBN: (纸本)0780397371

＜正＞This paper proposes a mesh based multicast key management scheme for mobile ad hoc networks. Among multicast group,these physically more secure and subjectively more trustworthy members form a mesh and use threshold cryptography to share the responsibility and provide group key services with strong security and high *** policy and a token mechanism are introduced to avoid the confliction during the group key *** analysis shows that the scheme has perfect security and efficiency.

关键词： Ad hoc networks Cryptography Network servers Engineering management Electronic mail Mobile ad hoc networks Availability centralized control Spine Energy management

Robust Adaptive FTC against Sensor Fault

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Computer Technology and Application 2012年第1期3卷 56-68页

作者： Amina Challouf Christophe Aubrun Adel Tellili Mohamed Naceur Abdelkrim Unite de Recherche. Modelisation Analyse et Commande de Systemes （MACS） Ecole Nationale d＇Ingenieurs de Gabes （ENIG） Facultes des Sciences et Techniques Centre de Recherche en Automatique de Nancy （CRAN） Nancy-University CNRS UMR 7039 France Institute Superieure des Etudes Technologiques de Djerba （ISET） Universite de Gabes Gabes 6029 Tunisia

This paper addresses the problem of robust Fault-Tolerant （FT） design for large-scale systems. This particular class constitutes complex system which can be decomposed into N-interconnected subsystems. Special attention is paid to two different design architectures of an Active Fault-Tolerant control （AFTC）. An AFTCS is characterized by an online Fault Detection and Isolation （FDI） process and a control reconfiguration mechanism. As the AFTC system offers the possibility to choose different controllers, the controller may be the most appropriate choice for the faulty situation and obtaining better performance. The goal of each adaptive controller is to accommodate sensor anomalies. Continuous, Linear and Time Invariant （LTI） complex system with faulty sensors and external disturbances is proposed. This study focuses on two different internal structures of the system. In this paper the direct adaptive method based on feedback controller design is applied both centralized and decentralized architectures. The controller gain is updated online using an adaptive law which takes into account the estimation of the faults and the disturbances. Then from the both classes of systems structures the adaptation controller performances, in terms of stability and fault effect rejection capability, are studied and compared. The proposed techniques are finally evaluated in the light of a simulation for a centralized interconnected system that can be decomposed into N-subsystems with some strong interconnections.

关键词： Adaptive control centralized control complex system decentralized control fault-tolerant control (FTC),N-Interconnected subsystems robust control sensor failure.

Design and Implementation of Remote control System of Coal Mine Conveyor Belt based on PLC

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International Journal of Technology Management 2015年第3期 88-90页

作者： Fei LIU Sufang LIU Xiuzhen ZHANG Yang YANG .Zhangjiakou Vocational Colege of Technology ZhangjiakouHebei075000 China Xuanhua Iron and Steel Machinery Manufacturing Co. LTDHebeiChina Zhejiang University Hangzhou China

Aiming at the existing problems of safety, reliability and flexibility in the traditional coal mine belt transport system, this paper designed the mine centralized control system transmitted by CAN bus and PLC as the core, and use comparison instructions and trigger of Siemens S7-200 PLC, the article has elaborated the four level conveyor belt sequence control, realized the sequence start, reverse sequence stop and fault processing and other functions for four level conveyor belt, the compared with traditional timer control instructions scheme, the design has clear thinking, simple design program, and is easy to be extended to multilevel belt drive sequence control.

关键词： Conveyer belt centralized control CAN bus PLC InTouch

Selective Effect of Negative Emotion on Spatial and Verbal Working Memory:An ERP Study

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Selective Effect of Negative Emotion on Spatial and Verbal W...

2005 International Conference on Neural Networks and Brain(ICNN&B’05)

作者： Xuebing Li Xinying Li Yue-Jia Luo Key laboratory of Mental Health Chinese Academy of Sciences Graduate School of the Chinese Academy of Sciences State Key laboratory of Cognitive Neuroscience and Learning Beijing Normal University

＜正＞We investigated the effect of negative emotion on spatial working memory（WM） and verbal WM using event-related potential（ERP） technique.A modified delayed-matching-to-sample task（DMST） was adopted and the ERPs in delay phase were *** the spatial WM task, central P2 amplitude and frontal late positive component（LPC） was reduced after centrally presented aversive pictures, relative to neutral ***,in the verbal WM task,the ERPs were not affected by negative emotion significantly. These results suggest that negative emotion selectively interrupted spatial,but not verbal,WM rehearsal,and this selective influence may result from the effect of negative emotion on spatial attention.

关键词： Enterprise resource planning Linear predictive coding Cognition Delay Laboratories centralized control Neuroscience Psychology Spatial resolution

Research and Design for Emergency Evacuation Instructions System Based On Wireless Sensor Network

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Research and Design for Emergency Evacuation Instructions Sy...

第24届中国控制与决策会议

作者： Cheng Kaitao, Ge Quanbo, Duan Shenan (School of Automation, Hangzhou Dianzi University, HangZhou 310018)

In order to achieve the goal of centralized control and emergency evacuation instruction for the current emergency lights system, also to overcome the disadvantages of the traditional emergency lights system such as uncontrollability, unobservability, and instability, we propose a construction on an emergency evacuation system by using the technology of wireless sensor network in this paper. The system firstly collects the real-time status of the light by sensors, and then the data are transmitted to the control center through the wireless network. After that, it can monitor the state of light and give emergency evacuation through corresponding algorithms. In this way, the emergency lights system become controllable and observable. At the same time, it reduces the installment, management and the maintain cost, while improve the stability of the emergency lights.

关键词： Wireless sensor network emergency light emergency evacuation instruction centralized control data collection

集中与分布的博弈：数字时代澳大利亚档案保管模式的发展及启示

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