Proceedings of the 2015 16th International Carpathian Control Conference (ICCC)

27-30 May 2015

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Displaying Results 1 - 25 of 118
  • Improved closed loop performance and control signal using evolutionary algorithms based PID controller

    Publication Year: 2015, Page(s):1 - 6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (379 KB) | HTML iconHTML

    Proportional-Integral-Derivative (PID) controllers are the most widely used controllers in industry because of their simplicity and robustness. Different values of PID parameters make different step response, so an increasing amount of literature is devoted to proper tuning of PID controllers. The problem merits further investigation as traditional tuning methods make large control signal that can... View full abstract»

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  • Model Reference Adaptive Control for MIMO nonlinear systems by using linear time varying approximation

    Publication Year: 2015, Page(s):7 - 12
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (918 KB) | HTML iconHTML

    A new approach to design Model Reference Adaptive Control (MRAC) for Multi Input Multi Output (MIMO) nonlinear systems is presented. First a nonlinear reference model system is considered whose nonlinear dynamics is controlled by optimal control using Successive Approximation Approach (SAA). In the second step, nonlinear plant dynamics which may have uncertain parameters or unmodeled dynamics is c... View full abstract»

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  • Design and validation of a low resource-cost video data processing method for embedded implementation of optical flow extraction

    Publication Year: 2015, Page(s):13 - 18
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1050 KB) | HTML iconHTML

    The main goal of the proposed project is to build real-time hardware implementations of Optical Flow methods for tasks like egomotion estimation and/or obstacle avoidance. The current paper presents the theoretical foundations and the development and adaptation of appropriate algorithms needed for the motion detection task and the selection of the most suitable hardware/software design environment... View full abstract»

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  • Robust control of drum boiler

    Publication Year: 2015, Page(s):19 - 24
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2327 KB) | HTML iconHTML

    In this paper, we focus on robust decentralized controller design for Benchmark PID problem: nonlinear drum boiler, presented recently by Morilla [4]. For the control systems, used in practice, the most accurate mathematical model is needed, which includes the important features of the real system, and yet make it as simple as possible. When designing robust controllers, it is necessary to identif... View full abstract»

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  • Quality indicator model of dynamic system boring machine - Rock

    Publication Year: 2015, Page(s):29 - 32
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (358 KB) | HTML iconHTML

    This article deals with the creation of dynamic models in the form of transient characteristics obtained from the monitoring system boring machine-rock used in tunneling Branisko using the tunnel boring method (TBM). The rating system is the creation of statistical models and their approximation of the measured, respectively, monitored values. As a starting point a statistical model was used that ... View full abstract»

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  • Predictive control of processes with fast dynamics

    Publication Year: 2015, Page(s):33 - 36
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (842 KB) | HTML iconHTML

    The predictive control is a modern approach, which can be used for many kinds of processes in the engineering practice. Also processes with fast dynamics can be controlled by the principle of the predictive control. However, there is a problem to realize a control algorithm in a short sampling period in case of the higher horizons and many constraints. Then the optimization task is not feasible us... View full abstract»

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  • A fuzzy rule interpolation base algorithm implementation on different platforms

    Publication Year: 2015, Page(s):37 - 40
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (511 KB) | HTML iconHTML

    This paper analyses a fuzzy rule interpolation method implemented on different platforms. Fuzzy rule interpolation based control systems play a major role in robot control and have several kinds of implementations. The fuzzy control applications based on fuzzy rule interpolation with the contributions made by Johanyak Cs. [7], allowed the implementation of several fuzzy models. In fuzzy control ap... View full abstract»

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  • On the dynamics of oilwell drillstrings with asynchronous motor drive

    Publication Year: 2015, Page(s):41 - 45
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (259 KB) | HTML iconHTML

    Recent work in stick-slip vibration quenching for drill pipes has been focused on models with distributed parameters where the drill pipe is assimilated to a rod. On the other hand it has been pointed out that the driving motor dynamics control may be helpful in reducing the breakdown/failures of the drilling devices. The present paper incorporates the dynamics of the induction driving motor. The ... View full abstract»

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  • Iterative function systems for natural image processing

    Publication Year: 2015, Page(s):46 - 49
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (505 KB) | HTML iconHTML

    This paper deals with the topic of iterative processing functions and has the primary goal to show its usefulness today for natural image processing. In simple terms, “natural images” are “photographs” of a typical environment where we live. Starting from theoretical mathematical models whose parameters are estimated from image samples towards implementation using moder... View full abstract»

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  • Dijkstra algorithm in parallel- Case study

    Publication Year: 2015, Page(s):50 - 53
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (792 KB) | HTML iconHTML

    This article aims to highlight the usefulness of improving classical algorithms by generating new approaches, efficiency or parallel execution time optimization at all costs. The reconsideration of classical algorithms, but in different testing conditions can help all products that rely on them. Based on the different uses of Dijkstra's algorithm and the new approaches based on the use, it can be ... View full abstract»

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  • Measurement and analysis of hydrate formation

    Publication Year: 2015, Page(s):54 - 57
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (687 KB) | HTML iconHTML

    Gas hydrates can cause serious problems in oil- and gas industry. It can be formed by synergies of gas- and water molecules at low temperature and high pressure. The major objective of this article is to present gas hydrate's formation at laboratory conditions and to examining the curve of hydrate based on the measured values. Furthermore, another main aim of this paper is to compare the results o... View full abstract»

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  • Hardware implemented adaptive neuro fuzzy system

    Publication Year: 2015, Page(s):58 - 63
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (871 KB) | HTML iconHTML

    In the paper the implementation on reconfigurable hardware of a Sugeno type neuro adaptive fuzzy inference system is proposed to be presented. The pipeline and parallel pipeline architecture play an important role in modelling the algorithm for the FPGA based implementation. In order to design the pipeline-parallel model of the controller two different methods were used: high level synthesis tool ... View full abstract»

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  • Control system for a small electrodynamic exciter

    Publication Year: 2015, Page(s):64 - 68
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (215 KB) | HTML iconHTML

    The paper focuses on development of a control system for an electrodynamic exciter used in vibration testing. There is described one of the possible ways to generate sine sweep and random testing signals based on filtering the control value with an inverse filter created from frequency response of an exciter. The system is designed to be universal, that wide range of components within control loop... View full abstract»

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  • Setting of combustion engine ECU parameters with use of knocking detection

    Publication Year: 2015, Page(s):69 - 72
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (995 KB) | HTML iconHTML

    This paper describes procedure of optimization of combustion engine control unit's parameters. The procedure uses the programmable ECU unit DTA, the knocking detection unit Gizzmo and hydrodynamic engine brake unit SF 902. The combustion engine, used for control and measurement, is from the SKODA/VW Company. The engine unit has volume of 1385ccm and originates from the SKODA Fabia car. View full abstract»

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  • Differential filters in control systems - manipulator

    Publication Year: 2015, Page(s):73 - 78
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (666 KB) | HTML iconHTML

    The paper discusses the use of differential filters in control algorithms. The filters are designed to determine the derivatives of the input signal and eliminate measuring and quantization noise. The differential filters improved the quality of control, with the results being better than those obtained with the classic Finite Difference Method (FDM). The primary purpose of the study was to employ... View full abstract»

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  • Technical diagnostics of tram undercarriages design, development and control

    Publication Year: 2015, Page(s):79 - 84
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1918 KB) | HTML iconHTML

    The tram undercarriage is one of the most valuable tramway parts. It consists of Cardan drive shaft, final gear and wheels. On some models of the undercarriage there is additional reduction gearbox too. The general reconstruction of whole undercarriage is one of the important phases of tramway lifecycle. We were design and developed testing device and method for no-load diagnostics of tramway unde... View full abstract»

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  • RTR+C*CS: An effective geometric planner for car-like robots

    Publication Year: 2015, Page(s):85 - 90
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (152 KB) | HTML iconHTML

    The need for intelligent autonomous vehicles is increasing in industrial and everyday life as well. Path planning among obstacles is one of the challenging problems to be solved to achieve autonomous navigation. In this paper we present a global geometric path planning method for car-like robots, which proved to be effective especially in cluttered environments, containing narrow passages. Navigat... View full abstract»

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  • Intensity feature for speech stress detection

    Publication Year: 2015, Page(s):91 - 94
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (413 KB) | HTML iconHTML

    Suprasegmental features are fundamental properties of speech. They can improve not only the naturalness of synthesized speech, but the performance of machine speech recognition in voice controlled logistic systems. In linguistics, stress is the relative emphasis that may be given to certain syllables in a word, or to certain words in a phrase or sentence. The term is also used for similar patterns... View full abstract»

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  • An approach to optimize the proportional-integral-derivative controller system

    Publication Year: 2015, Page(s):95 - 99
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (731 KB) | HTML iconHTML

    This paper aims at using imperialist competitive algorithm based fuzzy logic (FICA), to control an automatic voltage regulator (AVR) in order to increase the stability and obtain more controllability of the system. For the stabilization of the automatic voltage regulator a proportional-integral-derivative controller (PID) was used. We applied the FICA, which is the combination of the imperialist c... View full abstract»

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  • Computational issues based on neural networks for a class of systems of conservation laws

    Publication Year: 2015, Page(s):100 - 105
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (330 KB) | HTML iconHTML

    The aim of the present paper is to numerically solve a class of systems of conservation laws, modeled by hyperbolic partial differential equations (hPDEs). Our approach considers a novel computational procedure which relies on using the repetitive structure induced by a convergent Method of Lines for assigning a cell-based recurrent neural network to perform the numerics. Emphasizing that the Meth... View full abstract»

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  • Simulation approach to throughput assessment of single-track tramline

    Publication Year: 2015, Page(s):106 - 111
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (744 KB) | HTML iconHTML

    The presented paper demonstrates the use of discrete event simulation for throughput assessment of a temporarily single-track tramline in the traffic terminal Ostrava-Svinov. Under normal conditions, the tramline is double-track. However, due to the reconstruction of Svinov Bridges, that are part of this traffic terminal, between 2011 and 2012, it was operated on a single track. This action had an... View full abstract»

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  • Modelling of the heating process massive batch

    Publication Year: 2015, Page(s):112 - 116
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (360 KB) | HTML iconHTML

    At technological processes of metallurgy and machine industry is metals heating one of the most important operations have influence on production in term of the efficiency, quality and costs. Charge inner temperature is an important variable in the heating process, because allows to determine the phase of the material treatment (change in the structure of the material). Currently, charge inner tem... View full abstract»

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  • Modelling of heat losses in UCG under laboratory conditions and in situ

    Publication Year: 2015, Page(s):117 - 120
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (427 KB) | HTML iconHTML

    The underground coal gasification (UCG) is the process, which can be attractive from environmental and economic aspect and is able to have a wide utilization in the future. This technology is less expensive than conventional mining. It is appropriate to construct a physical model of the gasifier in the geometrical similarity for research and good analysis of UCG process under laboratory conditions... View full abstract»

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  • Reaction time measurement of non-synchronized Industrial Ethernet IO device

    Publication Year: 2015, Page(s):121 - 124
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (489 KB) | HTML iconHTML

    This Real-time Industrial Ethernet IO system is a communication concept for implementing modular, distributed applications on the Ethernet. User data from the field devices are transmitted cyclically via a real-time industrial Ethernet channel to the process image of an automation control system. The paper, presents a very efficient method to measuring and analyzing the reaction times of IO device... View full abstract»

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  • Storing high volumes of data in MS SQL Server Express

    Publication Year: 2015, Page(s):125 - 128
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (159 KB) | HTML iconHTML

    The article describes proven methods for MS SQL Server Express which automatically keep the latest data in the primary database, while older data are transferred into dynamically created databases. The system was deployed in Třinecké Železárny a. s. where the data older than 30 days is kept in the primary database, and older data is transferred into databases that w... View full abstract»

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