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19th IFAC World Congress on International Federation of Automatic control, IFAC 2014

作者： Monostori, László Valckenaers, Paul Dolgui, Alexandre Panetto, Hervé Brdys, Mietek Csáji, Balázs Csanád Institute for Computer Science and Control Hungarian Academy of Sciences Hungary Faculty of Mechanical Engineering Budapest University of Technology and Economics Hungary Department of Health Care and Technology KU Leuven Belgium LIMOS UMR 6158 CNRS Ecole Nationale Supérieure des Mines Saint-Etienne France Université de Lorraine CNRS France School of Electronic Electrical and Computer Engineering University of Birmingham United Kingdom Department of Control Systems Engineering Gdansk University of Technology Gdansk Poland

ISBN: (纸本)9783902823625

This is a milestone paper of the Coordinating Committee on Manufacturing and Logistics Systems (CC5) of the International Federation of Automatic control (IFAC). Classical applications of control engineering and information and communication technology (ICT) in production and logistics are often done in a rigid, centralized and hierarchical way. These inflexible approaches are typically not able to cope with the complexities of the manufacturing environment, such as the instabilities, uncertainties and abrupt changes caused by internal and external disturbances, or a large number and variety of interacting, interdependent elements. A paradigm shift, e.g., novel organizing principles and methods, is needed for supporting the interoperability of dynamic alliances of agile and networked systems. Several solution proposals argue that the future of manufacturing and logistics lies in network-like, dynamic, open and reconfigurable systems of cooperative autonomous entities. The paper overviews various distributed approaches and technologies of control engineering and ICT that can support the realization of cooperative structures from the resource level to the level of networked enterprises. Standard results as well as recent advances from control theory, through cooperative game theory, distributed machine learning to holonic systems, cooperative enterprise modelling, system integration, and autonomous logistics processes are surveyed. A special emphasis is put on the theoretical developments and industrial applications of Robustly Feasible Model Predictive control (RFMPC). Two case studies are also discussed: i) a holonic, PROSA-based approach to generate short-term forecasts for an additive manufacturing system by means of a delegate multi-agent system (D-MAS);and ii) an application of distributed RFMPC to a drinking water distribution system. © IFAC.

关键词： Adaptive control systems

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Finite-time stabilization for a class of stochastic high-order nonlinear systems

Finite-time stabilization for a class of stochastic high-ord...

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World Congress on Intelligent control and Automation (WCICA)

作者： Junyong Zhai Ruting Jia Key Laboratory of Measurement and Control of CSE MoE Southeast University Nanjing Jiangsu China Electrical Engineering and Computer Science Department McNeese State University Lake Charles LA

This paper discusses the problem of global finite-time output feedback stabilization in probability for a class of stochastic high-order nonlinear systems. A homogeneous observer and controller are constructed for the nominal system based on the stochastic Lyapunov theorem and the adding one power integrator technique. Then, a scaling gain is introduced into the homogenous observer and controller to render the closed-loop system to be globally finite-time stable in probability. A simulation example is given to illustrate the effectiveness of the proposed design scheme.

关键词： Nonlinear systems Output feedback Closed loop systems Educational institutions Observers Aerospace electronics

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An on-chip charge cluster reconstruction technique in the miniVIPIC pixel readout chip for X-ray counting and timing

An on-chip charge cluster reconstruction technique in the mi...

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IEEE Nuclear science Symposium

作者： J. Hoff G. W. Deptuch F. Fahim P. Grybos P. Maj D. P. Siddons R. Szczygiel M. Trimpl T. Zimmerman ASIC Development Group of the Electrical Engineering Department of the Particle Physics Division at the Fermi National Accelerator Laboratory Department of Measurement and Electronics at the Faculty of Electrical Engineering Automatics Computer Science and Biomedical Engineering at the AGH University of Science and Technology Photon Sciences Directorate at the Brookhaven National Laboratory

ISBN: (纸本)9781479960989

An on-chip algorithm for the allocation of a hit to a single pixel in the presence of charge sharing in a highly segmented pixel detector is presented. It has been developed to advance pixel detector technology for experiments with X-ray beams at a synchrotron facility. Its key elements are: activation of groups of pixels (neighborhood_active), comparisons of peak amplitudes within the active neighborhood, virtual pixels that recover composite signals, ability to create event driven strobes to control comparisons of fractional signals between neighboring pixels and finally latching of the results of these comparisons. The miniVIPIC prototype was designed in a 130 nm process, as a proof of feasibility. The chip contains an array of 32×32 100×100 μm~2 pixels. Analog and digital signals are exchanged between pixels, forming an extensive inter-pixel connection grid, whose routing to minimize parasistics, represented the major challenge. The design details of the chip are provided.

关键词： Photonics Detectors Biomedical measurement Signal processing algorithms Time factors Band-pass filters System-on-chip

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ANN-based DTC scheme to improve the dynamic performance of an IM drive

ANN-based DTC scheme to improve the dynamic performance of a...

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7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014

作者： Bouhoune, K. Yazid, K. Boucherit, M.S. Power and Industrial Systems Laboratory Faculty of Electronics and Computer Science University of Science and Technology Houari Boumediene PO Box 32 El Alia Bab Ezzouar 16111 Algiers Algeria Process Control Laboratory Department of Electrical Engineering Polytechnic National School PO Box 182 10 Hassan Badi El-Harrach 16200 Algiers Algeria

ISBN: (纸本)9781849198158

In addition to simplicity, the DTC of the IM allows a good torque control in steady-state and transient operating conditions. However, high torque ripple is produced, which is reflected in speed estimation responses. It also increases acoustical noise and makes the voltage source inverter operated in high and variable switching frequency, requiring a high sampling frequency. In this paper, a simple effective ANN-based DTC of the induction machine is proposed. Neural networks with a simple architecture are designed and implemented in influential points of the direct torque control block of the three phase induction machine in order to improve its dynamic performance while preserving the DTC structure simplicity as much as possible. In particular, this paper proposes to reduce, on the one hand, the torque ripple and commutation frequency. Neural comparators are used to select the appropriate bandwidth for the torque and flux hysteresis controllers. Their aim is to optimize the ripple level in the developed torque and flux. On the other hand, a neural speed controller is designed in order to improve the system ability to respond rapidly to changes in process variables and mitigate the effects of external perturbations. The performance of the proposed control are tested in simulation and highlighted by comparing to the conventional DTC control based on conventional hysteresis comparators and conventional PI speed controller. The obtained results show the feasibility and good performances of the proposed control.

关键词： Neural networks

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Embedding of Nonlinear Systems in a Linear Parameter-Varying Representation

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IFAC Proceedings Volumes 2014年第3期47卷 6907-6913页

作者： Hossam S. Abbas Roland Tóth Mihály Petreczky Nader Meskin Javad Mohammadpour Department of Electrical Engineering College of Engineering Qatar University PO Box 2713 Doha Qatar Electrical Engineering Department Faculty of Engineering Assiut University Assiut Egypt Control Systems Group Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands Department of Computer Science and Automatic Control Ecole des Mines de Douai 59508 Douai France Intelligent Control Systems Lab College of Engineering The University of Georgia Athens GA 30602 USA

This paper introduces a systematic approach to synthesize linear parameter-varying (LPV) representations of nonlinear (NL) systems which are originally defined by control affine state-space representations. The conversion approach results in LPV state-space representations in the observable canonical form. Based on the relative degree concept of NL systems, the states of a given NL representation are transformed to new coordinates that provide its normal form. In the SISO case, all nonlinearities of the original system are embedded in one NL function which is factorized to construct the LPV form. An algorithms is proposed for this purpose. The resulting transformation yields an LPV model where the scheduling parameter depends on the derivatives of the inputs and outputs of the system. In addition, if the states of the NL model can be measured or estimated, then the procedure can be modified to provide LPV models scheduled by these states. Examples are included for illustration.

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A Framework for the Nonlinear control of Dual-Stage Systems

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IFAC Proceedings Volumes 2014年第3期47卷 1140-1145页

作者： Aurélio T. Salton Jeferson V. Flores João M. Gomes da Silva Jinchuan Zheng Zhiyong Chen Group of Automation and Control Systems (GACS) Pontifícia Universidade Católica do Rio Grande do Sul Brazil Department of Electrical Engineering Universidade Federal do Rio Grande do Sul Brazil Faculty of Engineering and Industrial Sciences Swinburne University of Technology Australia School of Electrical Engineering and Computer Science The University of Newcastle Australia

This paper presents a framework for the nonlinear control of dual-stage actuators (DSA). Motivated by various nonlinear controllers that make use of sector bounded and £ ∞ nonlinearities for the control of saturated linear systems, a methodology for integrating such nonlinear functions in order to improve the performance of DSA is presented. The stability of the closed-loop system is assessed by casting the nonlinearities in a mixed sector-bounded plus quasi-Linear Parameter Varying (LPV) framework, leading to a set of linear matrix inequalities (LMIs) to be satisfied by the controller parameters. Taking advantage of the developed framework, a new £ ∞ function is proposed to avoid the saturation of the secondary actuator. Simulation results illustrate the validity of the proposed framework and its potential for the performance improvement of DSA.

关键词： DSA Nonlinear Feedback Time-Optimal Performance Macro-Micro Manipulator

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ANN-based DTC scheme to improve the dynamic performance of an IM drive

ANN-based DTC scheme to improve the dynamic performance of a...

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7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)

作者： K Bouhoune K Yazid M S Boucherit Power and Industrial Systems Laboratory Faculty of Electronics and Computer Science University of Science Algeria Process Control Laboratory Department of Electrical Engineering Polytechnic National School PO Box 182 10 Hassan Badi El-Harrach 16200 Algiers Algeria

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Cooperative control in Production and Logistics

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IFAC Proceedings Volumes 2014年第3期47卷 4246-4265页

作者： László Monostori Paul Valckenaers Alexandre Dolgui Hervé Panetto Mietek Brdys Balázs Csanád Csáji Institute for Computer Science and Control Hungarian Academy of Sciences Hungary Faculty of Mechanical Engineering Budapest University of Technology and Economics Hungary Department of Health Care and Technology KHLeuven Belgium LIMOS UMR 6158 CNRS Ecole Nationale Supérieure des Mines de Saint-Etienne France Centre de Recherche en Automatique de Nancy (UMR 7039) Université de Lorraine CNRS France School of Electronic Electrical and Computer Engineering University of Birmingham United Kingdom Department of Control Systems Engineering Gdansk University of Technology Gdansk Poland

This is a milestone paper of the Coordinating Committee on Manufacturing and Logistics Systems (CC5) of the International Federation of Automatic control (IFAC). Classical applications of control engineering and information and communication technology (ICT) in production and logistics are often done in a rigid, centralized and hierarchical way. These inflexible approaches are typically not able to cope with the complexities of the manufacturing environment, such as the instabilities, uncertainties and abrupt changes caused by internal and external disturbances, or a large number and variety of interacting, interdependent elements. A paradigm shift, e.g., novel organizing principles and methods, is needed for supporting the interoperability of dynamic alliances of agile and networked systems. Several solution proposals argue that the future of manufacturing and logistics lies in network-like, dynamic, open and reconfigurable systems of cooperative autonomous entities. The paper overviews various distributed approaches and technologies of control engineering and ICT that can support the realization of cooperative structures from the resource level to the level of networked enterprises. Standard results as well as recent advances from control theory, through cooperative game theory, distributed machine learning to holonic systems, cooperative enterprise modelling, system integration, and autonomous logistics processes are surveyed. A special emphasis is put on the theoretical developments and industrial applications of Robustly Feasible Model Predictive control (RFMPC). Two case studies are also discussed: i) a holonic, PROSA-based approach to generate short-term forecasts for an additive manufacturing system by means of a delegate multi-agent system (D-MAS); and ii) an application of distributed RFMPC to a drinking water distribution system.

关键词： intelligent manufacturing systems complex systems agents production control distributed control predictive control adaptive control machine learning optimization

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Introduction to the issue on biophotonics

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IEEE Journal on Selected Topics in Quantum Electronics 2014年第2期20卷 4-7页

作者： Ilev, Ilko K. Boppart, Stephen A. Andersson-Engels, Stefan Kim, Beop-Min Perelman, Lev Tuchin, Valery Center for Devices and Radiological Health U.S. Food and Drug Administration Silver Spring MD 20993 United States Beckman Institute for Advanced Science and Technology Departments of Bioengineering Electrical and Computer Engineering and Medicine University of Illinois Urbana IL 61801 United States Division of Atomic Physics Lund University Lund SE-22100 Sweden Department of Biomedical Engineering Korea University Seoul 136-703 Korea Republic of Center for Advanced Biomedical Imaging and Photonics Beth Israel Deaconess Medical Center Harvard University Boston MA 02215 United States Division of Optics and Biophotonics Saratov State University Saratov 410012 Russia Institute of Precision Mechanics and Control Russian Academy of Sciences Saratov 410028 Russia Optoelectronics and Measurement Techniques Laboratory University of Oulu Oulu FI-90014 Finland

The objective of this JSTQE Issue on Biophotonics is to highlight recent progress and trends in innovative biophotonics technology development. The papers published in this issue cover a broad range of advanced biophotonics areas summarized in the following sections: 1) bioimaging: optical coherence tomography and microscopy, nonlinear optical imaging, and novel multimodality imaging approaches; 2) biosensing: multifunctional biosensing, and novel biosensing approaches; 3) biophotonic science: mechanisms of light-cell and lighttissue interactions, advanced modeling methods in biophotonics, and light induced biophotonics effects; 4) biophotonic technology: advanced technologies in biophotonic diagnostics and therapeutics, infrared technology in biophotonics, and novel laser, biomedical and fiber optics tools and devices in biophotonics. These key research topics are highlighted as comprehensive overviews of the current status and future trends, as well as original results and recent developments in the field of biophotonics. This issue contains 33 papers, including 18 invited and 15 contributed papers authored by well-established research groups and promising scientists from all over the world. The invited papers include extended reviews on recent biophotonic developments and clinical applications in the areas of highresolution multispectral bioimaging, combined multifunctional microscopy, nonlinear deep tissue imaging, single molecule imaging, optical coherence elastography, cellular and molecular mechanisms of photobiomodulation, tissue optical clearing, clinical ultrafast laser surgery, infrared laser nerve stimulation, and novel tapered diode lasers for biophotonics. The contributed papers cover a broad variety of key biophotonic research areas including recently obtained original results on multimodal bioimaging and sensing, high resolution phase-sensitive magnetomotive optical coherence microscopy and elastography, and laser-assisted typing of polymorphic human

关键词： Special issues and sections Biophotonics

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A derivative-free algorithm for finding least squares solutions of quasi-linear and linear systems

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Journal of Computing and Information Technology 2013年第2期21卷 125-135页

作者： Hlupíc, Nikica Beroš, Ivo Basch, Danko Department of Applied Computing Faculty of Electrical Engineering and Computing University of Zagreb Unska 3 Zagreb 10000 Croatia Department of Applied Mathematics and Computer Science VERN' University of Applied Sciences Trg bana J. Jelačíca 3 Zagreb Croatia Department of Control and Computer Engineering Faculty of Electrical Engineering and Computing University of Zagreb Unska 3 Zagreb 10000 Croatia

A novel derivative-free algorithm for solving quasilinear systems is presented. It resembles "classical" optimization approach but greatly simplifies computation, resulting in fast execution and numerical stability. Though the global convergence cannot be guaranteed, it turns out that the presented algorithm finds a solution as successfully as other commonly accepted methods. The algorithm is clearly developed and mathematically founded, and its properties are examined by comparisons with other methods.

关键词： Linear systems

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