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2011 International Conference on Internet Computing and Information Services, ICICIS 2011

作者： Peng, Limin Sun, Suyun School of Computer Science and Engineering South China University of Technology Guangzhou 510641 China Department of Computer Engineering Guangdong Industry Technical College Guangzhou 510300 China

ISBN: (纸本)9780769545394

Wang et al. [6] proposed a scheme of allowing granter nodes to allocate multiple mini-slots to improve the data scheduling efficiency of the three-way handshake procedure, however, the size of the availability mini-slots is no considered. In fact, the available mini-slot space may not be contiguous but can include many windows of several slots in the actual data scheduling. To address this problem, we propose a novel data scheduling scheme, which is based on our proposed optimal model of mini-slots allocation, to reduce the number of mini-slot segments and to keep continuous mini-slots as long as possible. Simulation results show that our proposed scheduling schemes can achieve low transmission delay of data packets and high utilization ratio of mini-slots of all network nodes. © 2011 IEEE.

关键词： Medium access control

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Codesign of networked control systems: A review from different perspectives

Codesign of networked control systems: A review from differe...

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IEEE International Conference on Cyber technology in Automation,Control,and Intelligent Systems

作者： Yan, Hehua Wan, Jiafu Li, Di Tu, Yuqing Zhang, Ping College of Information and Engineering Guangdong Jidian Polytechnic Guangzhou China College of Automation Science and Engineering China School of Mechanical and Automotive Engineering China School of Computer Science and Engineering South China University of Technology China

ISBN: (纸本)9781612849102

Networked control systems (NCSs) are characterized by sharing a communication network between sensors, actuators, and controllers, which involves several subjects such as control, communication, and computer sciences. To achieve the optimized system performance in unpredictable environments, a novel methodology, codesign among several subjects, is emerging in the context of integrating control, computing, and communications. The aim of this work is to provide a better understanding of this emerging methodology. Relevant research efforts from different perspectives are concisely discussed by being classified into three categories, i.e., CPU resource scheduling, network bandwidth allocation, and advanced control. Then the tools supporting codesign of NCSs are summarized. The codesign methods can be extended in many directions, and some suggestions for future work are also outlined. © 2011 IEEE.

关键词： Networked control systems

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A survey of Cyber-Physical Systems

A survey of Cyber-Physical Systems

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2011 International Conference on Wireless Communications and Signal Processing, WCSP 2011

作者： Shi, Jianhua Wan, Jiafu Yan, Hehua Suo, Hui School of Physics and Electronics Science Shanxi Datong University Datong China School of Computer Science and Engineering South China University of Technology Guangzhou China College of Electrical Engineering Guangdong Jidian Polytechnic Guangzhou China

ISBN: (纸本)9781457710100

Cyber-Physical Systems (CPSs) are characterized by integrating computation and physical processes. The theories and applications of CPSs face the enormous challenges. The aim of this work is to provide a better understanding of this emerging multi-disciplinary methodology. First, the features of CPSs are described, and the research progresses are summarized from different perspectives such as energy control, secure control, transmission and management, control technique, system resource allocation, and model-based software design. Then three classic applications are given to show that the prospects of CPSs are engaging. Finally, the research challenges and some suggestions for future work are in brief outlined. © 2011 IEEE.

关键词： Cyber Physical System

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics): Preface

Lecture Notes in Computer Science (including subseries Lectu...

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2012年 7248 LNCS卷 VI-XI页

作者： Di Chio, Cecilia Agapitos, Alexandros Cagnoni, Stefano Cotta, Carlos De Vega, F. Fernández Di Caro, Gianni Drechsler, Rolf Ekárt, Anikó Esparcia-Alcázar, Anna I. Farooq, Muddassar Langdon, William B. Merelo-Guervós, Juan-J. Preuss, Mike Richter, Hendrik Silva, Sara Simões, Anabela Squillero, Giovanni Tarantino, Ernesto Tettamanzi, Andrea G.B. Togelius, Julian Urqhart, Neil Uyar, A. Şima Yannakakis, Georgios N. University College Dublin Ireland Dept. of Computer Engineering University of Parma Italy Dept. Lenguajes Y Ciencias de la Computación University of Málaga Spain University of Extremadura Spain Lugano Switzerland Cyber-Physical Systems DFKI Bremen Germany Computer Science Aston University Birmingham United Kingdom S2 Grupo Spain National University of Computer and Emerging Sciences Islamabad Pakistan University College London United Kingdom Departamento de Arquitectura Y Tecnología de Computadores Universidad de Granada Spain TU Dortmund University Germany Faculty of Electrical Engineering and Information Technology HTWK Leipzig University of Applied Sciences Germany INESC-ID Lisboa Portugal Coimbra Institute of Engineering Coimbra Polytechnic Coimbra Portugal Politecnico di Torino Italy Institute for High Performance Computing and Networking Italy Università degli Studi di Milano Italy Center for Computer Games Research IT University of Copenhagen Denmark Centre for Emergent Computing Edinburgh Napier University United Kingdom Dept. of Computer Engineering Istanbul Technical University Turkey

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Model-Based Method to Codesign of Control, Computing, and Communications with Resource Constraints

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Procedia engineering 2011年 24卷 116-122页

作者： Jiafu Wan Hehua Yan Hui Suo Caifeng Zou School of Computer Science and Engineering South China University of Technology Guangzhou China College of Electrical Engineering Guangdong Jidian Polytechnic Guangzhou China

To optimize the overall quality of control (QoC) of networked control systems (NCSs), it is necessary to adopt the codesign from the control, computing, and communication perspectives. By analyzing related problems and method formulation, an implementation architecture for the codesign is proposed, which could flexibly allocate system resources under the constraints of communication bandwidth, CPU resource, and jitter range. The key to realizing codesign is an analysis model of NCSs that includes various factors such as control algorithm, CPU scheduling, and network resource. The optimized implementation scheme for codesign is estimated by comparing QoCs. Finally, the experiment with a CAN-based computer numerical control (CNC) system is conducted, and the results show that the scheduler adjusts system resource according to temporal time attributes, improving the QoC of CNC. The presented model-based approach to codesign is effective, and is helpful in using system resources and further enhancing overall QoC.

关键词： Networked control systems (NCSs) codesign fuzzy feedback scheduling computer numerical control (CNC)

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Coordinated Distributed Data Scheduling Scheme in IEEE 802.16 Mesh Networks

Coordinated Distributed Data Scheduling Scheme in IEEE 802.1...

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2011 International Conference on Internet Computing and Information Services （ICICIS 2011）

作者： Limin Peng Suyun Sun School of Computer Science and Engineering South China University of Technology Department of Computer Engineering Guangdong Industry Technical College

关键词： IEEE 802.16 mesh networks medium access control(MAC) coordinated distributed scheduling

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A General Test Platform for Cyber-Physical Systems: Unmanned Vehicle with Wireless Sensor Network Navigation

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Procedia engineering 2011年 24卷 123-127页

作者： Jiafu Wan Hui Suo Hehua Yan Jianqi Liu School of Computer Science and Engineering South China University of Technology Guangzhou China College of Information Engineering Guangdong Jidian Polytechnic Guangzhou China

Cyber-Physical Systems (CPSs) integrate the virtual cyber world with the real physical world. Nowadays, the theories and applications of CPSs still face enormous challenges. In order to facilitate this emerging domain, a general test platform for CPSs, low-priced intelligent vehicle with Wireless Sensor Networks (WSNs) navigation, is designed to test and verify the proposed methods and theories. We in brief review the research progresses of CPSs, WSNs and unmanned vehicles. By means of deeply analyzing the test platform architecture and WSN navigation principle, the software and hardware of this platform are developed. The experiment results show that the resolution of wireless sensor navigation is less than 0.67m. On the basis of these, how to conduct studies from different perspectives is illustrated, and the implementation challenges are also outlined.

关键词： Cyber-physical systems wireless sensor networks unmanned vehicle navigation intelligent road

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Coordinated Distributed Data Scheduling Scheme in IEEE 802.16 Mesh Networks

Coordinated Distributed Data Scheduling Scheme in IEEE 802.1...

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International Conference on Internet Computing and Information Services (ICICIS)

作者： Limin Peng Suyun Sun School of Computer Science and Engineering South China University of Technology Guangzhou China Department of Computer Engineering Guangdong Industry Technical College Guangzhou China

关键词： Resource management IEEE 802.16 Standards Mesh networks Job shop scheduling Availability Distributed databases

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Analysis Model for Ethernet-based CNC Embedded Implementation

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Procedia engineering 2011年 15卷 448-453页

作者： Hehua Yan Jiafu Wan Hui Suo Di Li Yuqing Tu Fang Li College of Electrical Engineering Guangdong Jidian Polytechnic Guangzhou China School of Computer Science and Engineering South China University of Technology Guangzhou China School of Mechanical and Automotive Engineering South China University of Technology Guangzhou China

In order to make the most of system resource and improve system performance in Ethernet-based computer numerical control (CNC) system, it is very necessary to establish the performance analysis model and further adopt the codesign method from the control, communication and computing perspectives. Analyzing system architecture, time characteristic parameters of controlloop, model framework, etc. we proposed a simulation analysis model for real-time Ethernet-based CNC system. This model includes the timing effects caused by the implementation platform in the simulation. The key to establishing the model is accomplished by designing the error analysis module and the controller nodes. The proposed model is helpful for CNC system development.

关键词： computer numerical control (CNC) Ethernet Embedded implementation Simulation model Codesign

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Towards energy saving and load balancing data aggregation for wireless sensor networks

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Information technology Journal 2011年第2期10卷 409-415页

作者： Liang, Wei Xu, Jianbo Liu, Yuanyuan Key Laboratory of Knowledge Processing and Networked Manufacturing School of Computer Science and Engineering Hunan University of Science and Technology Xiangtan 411201 China Department of Electrical Engineering Guangdong Songshan Polytechnic College Shaoguang 512126 China

In this study, we focus on the development of energy efficient and achievable load balancing mechanisms for wireless sensor networks. Due to resource constraint and tremendous amount of sensors, one possible way of achieving maximum lifetime of the network is applying data aggregation on sensor data. However, existing approaches introduce significant computation and control overheads that often not suitable for sensor networks applications. In view of this, we propose an in-network data aggregation scheme by exploiting the inherent spatial correlation of the sensed data. Each sensor multiplies its reading with a random coefficient and sends the product to the next hop to calculate a weighted sum of all the massage. Instead of receiving individual sensor readings, the sink will receive all weighted sum and restore the original data. By doing so, each node only performs one addition and one multiplication in order to compute one weighted sum and consume the same amount of energy. Simulation results demonstrate that the proposed scheme is efficient and outperforms existing schemes in terms of energy gain and network lifetime. © 2011 Asian Network for Scientific Information.

关键词： Energy efficiency

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