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System for Measuring of Effectiveness of the Accumulator Matters

IFAC Proceedings Volumes 2000年第1期33卷 199-202页

作者： Jiří Koziorek Faculty of electric engineering and computer science VSB - TU Ostrava Department of measurement and control 17. listopadu 15 70833 Ostrava-Poruba Tel: +420 69 699 3138

The poster describes the equipment based on PLC for measuring of effectiveness of the accumulator matters. Main part of the equipment is control system with programmable controller Tecomat TC 600. The controller provides measurement according to setting parameters and saves acquired data to the memory. The parameters could be set on the computer with SCADA system. This system also processes measured data. The results are time characteristics of charging and discharging of tested matter, values of effectiveness in each cycle.

关键词： Programmable logic controller human-machine interface process automation data acquisition communication

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Distributed control Systems of Pipeline Networks Using Multi-Agent Technologies

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IFAC Proceedings Volumes 2000年第17期33卷 1093-1098页

作者： Vilém Srovnal Pavel Nevriva Department of Measurement and Control Faculty of Electrical Engineering and Computer Science VŠB - Technical University Ostrava 17. listopadu 15 708 33 Ostrava - Poruba Czech Republic phone:+420 69 699 3137/3135 fax:+420 69 6993138

Industrial applications are characterised by increasing complexity of distributed control systems. The control system is compound of intelligent sensors and actuators, micro-controllers, PLC's, PC's and workstations in industrial and computer nets and operating systems. In such distributed control systems is possible effectively using multi-agent architecture, where agents co-operate under a structured organisation, using the scenario recognition approach. The typical application is the transport of mass and/or energy by large pipeline systems of great complexity undergoes a number of technician and economical constraints. This involves the problem of a dynamic optimal control of distribution systems. In this paper, the optimal control of steam and hot water distribution in the large pipeline network is discussed.

关键词： Optimal control Stochastic system Uncertainty Supervision

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Microprocessor Based Mobile Robot control System

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IFAC Proceedings Volumes 2000年第27期33卷 381-384页

作者： Vladimír Kašík Miroslav Pokorný VSB Technical University Ostrava Faculty of Electrical Engineering and Computer Science Department of Measurement and Control 17.listopadu St. 708 33 Ostrava Czech Republic Tel.: +420-69/6991231 fax: +420-69/6993138

The model of mobile robot is designed and performed using the three-wheels principle. Each of wheels is derived through a separate electrical motor-drive. The actual motion trajectory is defined by the actual turning frequency of motors. The motor-drivers are controlled using the microprocessor unit calculating the motion control signals for each of one. Global driving signal is calculated and transmitted through the HF radio communication equipment using the central PC self-learning control fuzzy oriented system. Distributed robot’s control system is performed using the MOTOROLA M68HC11 family equipment.

关键词： Remote control Robot control Microprocessor control Motors Wheels

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An outlook on the DSP dynamic error blind correction of the analog part of the measurement channel

An outlook on the DSP dynamic error blind correction of the ...

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IEEE Instrumentation and measurement Technology Conference

作者： J. Nabielec Faculty of Electrical Engineering Automatics Computer Science and Electronics Department of Measurement and Instrumentation University of Mining and Metallurgy Krakow Poland

The real time "blind" correction of dynamic error of instrumentation amplifier has been proposed. It bases on the Pfriem postulate, that the system of two analog channels of different time constants is free of dynamic error when the difference of their output signal always equals zero. An extension of this method has been proposed in this paper. The time constants of the transducer may change independently one from another. For correction of the inertial object dynamic error, the differentiation in real time of the transducer output signal is necessary. This operation is performed by DSP. The multiparametric optimisation algorithm changes coefficients of the corrector in that manner to fulfil the Pfriem postulate. A criteria like /spl par/ /spl par//sub 2/ or /spl par/ /spl par//sub /spl prop// are assumed for the difference between an output corrected signal of each channel. The high order case has also been mentioned.

关键词： Digital signal processing Error correction Current measurement Inductance measurement Gain measurement Time measurement Signal processing computer errors Electric variables measurement Instruments

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Healthcare Informatics Society of Ireland

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Irish Journal of Medical science 1999年第4期168卷 276-282页

作者： Rigby, M. Sheridan, A. Draper, R. Stephens, G. Gaffney, P. Grimson, J. Avalos, G. Comerford, F. R. Kanagaratnam, B. Dineen, B. Hamilton, I. Jung, B. Felton, E. Berry, D. Grimson, W. Rice, D. H. Healy, M. Bruce, A. Kelly, J. Carroll, T. Grogan, A. Hurl, G. A. Hyland, D. Roberts, J. Brazil, J. Callanan, I. Devitt, A. O’Brien, T. O’Sullivan, U. M. Peyton, K. Wilson, M. J. Collins, R. Crawley, L. Foley, D. Strachan, H. McBrearty, P. Murnane, R. Murphy, E. Keane, V. Mulvany, F. Sweeney, P. D. Kenny, D. O’Connell, P. R. Balfe, P. Minogue, G. Centre for Health Planning & Management Keele University Keele Staffordshire Britain St. John of God Hospital Stillorgan Hospitaller Order of St. John of God Stillorgan Dept. of Computer Science Trinity College Dublin Clinical Chemistry Laboratory Tallaght Hospital Tallaght Dublin 24 Department of Experimental Medicine Faculty of Medicine National University of Ireland Galway Department of Health Promotion Faculty of Medicine National University of Ireland Galway School of Control Systems & Electrical Engineering Dublin Institute of Technology Ireland Shared Medical Systems Malvern USA Healy Services Dublin Universal Learning Systems Ltd. Dublin The Rotunda Hospital Dublin Mater Misericordiae Hospital Dublin Institute for Healthcare Informatics Dublin First Consulting Group Macclesfield Britain Virus Reference Laboratory UCD Belfield Dublin 4 Cappagh Orthopaedic Hospital Dublin Ireland Southern Health Board Cork Mater Misericordiae Hospital Dublin 7 DSS Dublin Ltd. Ireland University College Dublin Ireland Mary Aikenhead School of Nursing St. Vincent’s Hospital Dublin Blackrock Clinic Dublin Borders Community Health Services NHS Trust Britain James Connolly Memorial Hospital Blanchardstown Dublin 15 Kildare and West Wicklow Mental Health Service for People with A Learning Disability Eastern Health Board Dublin Health Research Board Dublin General Practice Research Unit The Medical Centre Dungloe Dept. of Clinical Biochemistry Our Lady’s Hospital for Sick Children Crumlin Dublin 12

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Royal Academy of Medicine in Ireland - Section of Bioengineering - Proceedings of meeting held in Dundalk, Co. Louth, in February 1998.

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IRISH JOURNAL OF MEDICAL science 1998年第4期167卷 256-276页

作者： [Anonymous] Orthopaedic Research Unit The Queen’s University of Belfast School of Biomedical Sciences The Queen’s University of Belfast Howmedica International Ltd. Raheen Industrial Estate Limerick Department of Mechanical Engineering Trinity College Dublin 2 Mater Hospital Dublin 7 Orthopaedic Research Laboratory Århus University Hospital Denmark University of Limerick Limerick Limerick Regional Hospital Raheen Limerick Boston Scientific Ireland Ltd. Galway Department of Mechanical Engineering University College Dublin Dublin Department of Electrical and Electronic Engineering University College Dublin Dublin Bioengineering Research Centre Department of Mechanical Engineering University College Dublin Dublin Northern Ireland Bio-Engineering Centre (NIBEC) School of Electrical and Mechanical Engineering University of Ulster Newtownabbey Department of Mechanical & Manufacturing Engineering The Ashby Building The Queen’s University of Belfast Johnson and Johnson Professional Orthopaedic Division Queensway England Department of Cardiology and Department of Medical Physics & Bioengineering St. James’s Hospital Dublin 8 Burke House Ellison Street Castlebar Royal College of Surgeons in Ireland Department of Surgery Beaumont Hospital Dublin Department of Electronic and Electrical Engineering Trinity College Dublin 2 Department of Aeronautical Engineering The Queen’s University of Belfast Vascular Unit Belfast City Hospital Department of Medical Physics and Bioengineering St. James’s Hospital Dublin 8 Centre for Biomedical Electronics Department of Electronic and Computer Engineering University of Limerick Limerick Department of Mechanical and Aeronautical Engineering University of Limerick Limerick School of Health Sciences University of Ulster Ireland School of Physiotherapy University of Ulster Newtownabbey Clinical Engineering NI Medical Physics Agency Belfast and Radiology Royal Victoria Hospital Musgrave Park Hospital University of Limerick Biomedical Institute (ULBMI) Uni

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A circuit for high-speed time switching

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IEEE TRANSACTIONS ON COMMUNICATIONS 1997年第3期45卷 287-288页

作者： Bucholc, K Faculty of Electrical Engineering Department of Control Robotics and Computer Science Poznan University of Technology Poznan Poland

A method of time switching for time-division communication systems is introduced, A compact shift register-based circuit is used for this purpose in order to achieve high-speed switching.

关键词： time-division communication time switching

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Overview, current trends and latest results in estimating the effects of load modelling on power-system damping and stability

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EUROPEAN TRANSACTIONS ON electrical POWER 1997年第2期7卷 107-113页

作者： Milanovic, JV [?]Jovica V. Milanovic (1967) received the Dipl.-Ing. (Elec.) and M.Sc. (Elec. Eng.) degrees from the University of Belgrade. Yugoslavia. in 1987 and I99 I respectively. One year he worked with “Energoproject-MDD”- Engineering and Contracting Co. in Belgrade as an engineer in designing power plants and substations. In late 1988 hejoined the Faculty of Electrical Engineering of the University of Belgrade first as an associate teaching assistant and then (since late 199 I) as teaching assistant at the Dept. of Power Converters and Drives. Between March 1993 and January 1996 he completed his Ph.D. at the University of Newcastle. Australia. at the Dept. of Electrical and Computer Engineering. Since February 1996 he is lecturer at the Department of Electrical Engineering and Computer Science at the University of Tasmania Austnlia. His major interests include synchronous machines and power system transients control and stability. (The University of Tasmania. Dept. of Electrical Engineering and Computer Science GPO Box 252-65 Hobart Tas 7001 Australia.Te1+61 362/262-753 Fax+61 369/262 136. e-mail: Jovica.Milanovic@eecs.utas.edu.au)

The paper presents the overview of load modelling for power-system damping and stability studies with main conclusions summarized from previous research. The attempt has been made to present a cross-section of the most exploited existing load models together with the most important conclusions drawn from their implementation in power-system stability programs. The current trends and latest results in the domain of damping of electromechanical oscillations in power systems are also presented. The effects of load dynamics on damping of electromechanical oscillations were analyzed on the basis of one of generic load models proposed in the past. The recent results further encourage investigation in this area and highlights the importance of proper load modelling.

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computer Aided control Systems Design for Hydraulic Drives

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IFAC Proceedings Volumes 1997年第4期30卷 359-364页

作者： B. Stein E. Vier Department of Mathematics and Computer Science (Prof. Dr. H. Kleine Büning) Knowledge-based systems University of Paderborn D-33104 Paderborn Germany. Phone: +49 (5251) 60 - 3348 Fax: +49 (5251) 60 - 3338 Department of Measurement and Control (Prof. Dr.-Ing. H. Schwarz) Faculty of Mechanical Engineering University of Duisburg D-47048 Duisburg Germany. Phone: +49 (203) 379 - 1583 Fax: +49 (203) 379 - 3027

The design of hydraulic control systems is a complex and time-consuming task that, at the moment, cannot be automated completely. Nevertheless, important design subtasks like simulation or control concept selection can be efficiently supported by a computer. Prerequisite for a successful support is a well-founded analysis of a hydraulic system's structure. The paper in hand contributes right here. It provides a systematics for analyzing a hydraulic system at different structural levels and illustrates how structural information can be used within the design process. A further central matter of this paper is the automatic extraction of structural information from a circuit diagram by means of graph-theoretical investigations.

关键词： Algorithms and Knowledge-based Software Tools for CACSD Structural Analysis of Hydraulic Systems Graph Theory

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Modelling, Adaptive, Neural and Fuzzy control of Coal Power Plants 1

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IFAC Proceedings Volumes 1995年第26期28卷 347-352页

作者： Petr Pivoňka Department of Automatic Control and Instrumentation Faculty of Electrical Engineering and Computer Science 61266 Brno Božetěchova 2 Czech Republic

At the preparatory stage for connecting the Czech power systems to the West European UCPTE system, corrections for frequency must be included in the output power control, i.e. the primary control must be introduced. The result of the detailed analysis was a model of primary output power control of the block and a new power system control of Czech coal power plants. In the new power system control, an adaptive or robust controller will be used for operation stabilisation

关键词： Power system control adaptive control neural control fuzzy control fuzzy PID controllers self-tuning control neural nets

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