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检索条件"任意字段=24th International Conference on Methods and Models in Automation and Robotics, MMAR 2019"

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2019 24th international conference on methods and models in automation and robotics, mmar 2019

2019 24th International Conference on Methods and Models in ...

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24th international conference on methods and models in automation and robotics, mmar 2019

ISBN: (纸本)9781728109336

the proceedings contain 113 papers. the topics discussed include: design, modeling and simulation of PID Control for DC/AC inverters;stability and angles between state matrices of positive linear systems;JamesBot – an intelligent agent playing StarCraft II;experimental validation of a nonlinear model for controlled thermoelectric processes in cylindrical bodies;process fault detection and reconstruction by principal component analysis;style transfer-based image synthesis as an efficient regularization technique in deep learning;adaptive, nonlinear control of a third-order Duffing–Holmes type chaotic oscillator;and constrained controllability of linear systems.

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Simulation platform for wireless data communication using a new signal reconstruction method 24

Simulation platform for wireless data communication using a ...

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24th international conference on methods and models in automation and robotics (mmar)

作者： Majewski, Pawel Hunek, Wojciech P. Opole Univ Technol Inst Control Engn Opole Poland

ISBN: (纸本)9781728109336

A platform for simulation of MIMO wireless data transmission processes is presented in this paper. the innovative tool implements authors' solution based on the polynomial approach related to the nonsquare matrices. through an application of some nonunique inverses of nonsquare propagation matrices it is possible to increase an efficiency of signal recovery, which is confirmed by the theoretical background and a number of simulation instances. thus, the useful environment can compete with other platforms employing different techniques. this statement is discussed in this paper.

关键词： Wireless communication Signal reconstruction MIMO communication Task analysis Data communication Data models Transmitters

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Fractional-order Difference Basis Functions - a new modeling concept for dynamical systems 24

Fractional-order Difference Basis Functions - a new modeling...

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24th international conference on methods and models in automation and robotics (mmar)

作者： Galek, Marcin Stanislawski, Rafal Rydel, Marek Latawiec, Krzysztof J. Lukaniszyn, Marian Opole Univ Technol Dept Elect Control & Comp Engn Ul Proszkowska 76 PL-45758 Opole Poland

ISBN: (纸本)9781728109336

this paper presents a new concept for modeling of linear fractional-order dynamical systems. the proposed model is based on specific basis functions, the so called Fractional-order Difference Basis Functions, which are a generalization of the delayed filters used in the FIR model. In the paper, we show elementary properties of the model and present a method for model implementation. Simulation example shows that the model can be effective in modeling of a class of dynamical systems.

关键词： Finite impulse response filters Mathematical model Estimation Analytical models Computational modeling Numerical models

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Stability conditions for fractional discrete-time state-space systems with delays 24

Stability conditions for fractional discrete-time state-spac...

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24th international conference on methods and models in automation and robotics (mmar)

作者： Ruszewski, Andrzej Bialystok Tech Univ Fac Elect Engn Bialystok Poland

ISBN: (纸本)9781728109336

the stability problem of fractional discrete-time linear systems with delays has been analysed. the state-space model with a time shift in the difference has been considered. New necessary and sufficient conditions for the asymptotic stability and the practical stability have been established. the systems with only one matrix have been also analysed. It has been shown that such systems are asymptotically (practically) stable if all eigenvalues of the state matrix lie in the stability region of the complex plane.

关键词： Asymptotic stability Delays Mathematical model Stability analysis Eigenvalues and eigenfunctions Linear systems State-space methods

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Action Recognition by Weighted Averaged Hidden Markov models 24

Action Recognition by Weighted Averaged Hidden Markov Models

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24th international conference on methods and models in automation and robotics (mmar)

作者： Postawka, Aleksandra Sliwinski, Przemyslaw Wroclaw Univ Sci & Technol Dept Comp Engn Wroclaw Poland Wroclaw Univ Sci & Technol Dept Control Syst & Mechatron Wroclaw Poland

ISBN: (纸本)9781728109336

In the paper the problem of action recognition with the help of Markov models is considered. We propose an algorithm aiming at reduction of the false positive rate. We state a hypothesis that these errors are caused by learning gesture sequences representing rare movements and not that containing popular ones. Our algorithm translates the sequence of gestures into the corresponding Markov models which are used for a preliminary classification. the obtained evaluation coefficients (numbers of proper classifications) are then used to determine the best weights in a combined model composed of these models. In order to find a compromise between the number of true positives and the number of false positives, the power function of weights is examined.

关键词： Hidden Markov models Mathematical model Markov processes Sensors Biological system modeling Real-time systems Measurement uncertainty

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Selected methods for Increasing the Accuracy of Vehicle Lights Detection 24

Selected Methods for Increasing the Accuracy of Vehicle Ligh...

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24th international conference on methods and models in automation and robotics (mmar)

作者： Bogacki, Piotr Dlugosz, Rafal Aptiv Serv Poland SA Ul Podgorki Tynieckie 2 PL-30399 Krakow Poland AGH Univ Sci & Technol Fac Comp Sci Elect & Telecommun Krakow Poland UTP Univ Sci & Technol Fac Telecommunicat Comp Sci & Elect Engn Bydgoszcz Poland

ISBN: (纸本)9781728109336

the paper presents selected methods for improving the accuracy of classification of headlights and taillights of the vehicles. the methods include analyzing blob properties and locations of the detections. A new feature for describing binary blob shape has been proposed. Moreover, data augmentation technique has been used to improve the results of the classification. the referenced system is based on convolutional neural networks (CNNs). New solutions have been tested with comprehensive set of video sequences (of total duration exceeding ten hours) under various weather conditions and from different road types.

关键词： computer vision headlight control night time vehicle detection

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Parameter identification for the fractional order, state space model of heat transfer process using Atangana-Baleanu operator. 24

Parameter identification for the fractional order, state spa...

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24th international conference on methods and models in automation and robotics (mmar)

作者： Oprzedkiewicz, Krzysztof Mitkowski, Wojciech AGH Univ Sci & Technol Dept Automat & Robot Al A Mickiewicza 30 PL-30059 Krakow Poland

ISBN: (纸本)9781728109336

In the paper the parameters identification problem for a new, non integer order, state space model of heat transfer process is presented. the proposed model uses Atangana-Baleanu derivative operator. the analytical formula of step response is proposed. the parameters of the model are estimated via numerical minimization of the Mean Square Error (MSE) cost function. Finally the proposed model is compared to fractional order models using Caputo (C) and Caputo-Fabrizio (CF) operators. Results of numerical tests show, that the accuracy of the proposed model is better than accuracy of CF model, but worse, than accuracy of the C model.

关键词： Mathematical model Numerical models Space heating Cost function Heat transfer Temperature sensors

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A Generic Validation Scheme for real-time capable Automotive Radar Sensor models integrated into an Autonomous Driving Simulator 24

A Generic Validation Scheme for real-time capable Automotive...

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24th international conference on methods and models in automation and robotics (mmar)

作者： Jasinski, Michal AGH Univ Sci & Technol Dept Automat & Biomed Engn Al A Mickiewicza 30 PL-30059 Krakow Poland APTIV Serv Poland SA Ul Podgorki Tynieckie 2 PL-30399 Krakow Poland

ISBN: (纸本)9781728109336

Since Advanced Driver Assistance Systems are getting more and more complex a strong effort is put into the development of open-source autonomous driving simulators. However a robust virtual environment should not only be assessed by its realistic physics or 3D assets variety, but it also has to incorporate highly accurate and real-time capable sensor models. the research presented in this paper introduces a robust method for validating radar sensor models enabling a simple proof of their reliability in a virtual scenario. To give an overview of radar sensor modeling approaches, the solutions available in the literature are evaluated in terms of usage in virtual environments based on simple criteria. Finally, an exemplary radar sensor model integrated into the CARLA simulator is presented and also a short outline of further research is depicted.

关键词： sensor models validation autonomous driving simulator CARLA radar systems real-time applications

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Integrated Maintenance Decision Making Platform for Gantry Cranes in Container Terminal 24

Integrated Maintenance Decision Making Platform for Gantry C...

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24th international conference on methods and models in automation and robotics (mmar)

作者： Szpytko, Janusz Salgado Duarte, Yorlandys AGH Univ Sci & Technol Ave A Mickiewicza 30 PL-30059 Krakow Poland

ISBN: (纸本)9781728109336

the paper presents a risk-based model to coordinate the preventive-predictive maintenance process of gantry cranes in a container terminal with vessels high demand. the model coordinates the preventive-predictive maintenance process minimizing the risk of Gantry Cranes Inefficiency (GCI). the risk is estimated with a sequential Markov Chain Monte Carlo (MCMC) simulation model. In this paper, the Preventive-Predictive Maintenance Scheduling (PPMS) process of gantry cranes is non-linear stochastic optimization problem and it is efficiently solved with the algorithms Particle Swarm Optimization (PSO). the model allows the terminal container operators to obtain a maintenance schedule that minimizes the risk of GCI, as much as possible in a container terminal;as well as establishing the desired level of risk the paper demonstrates the proposed model effectiveness with data of a real container terminal.

关键词： Containers Cranes Mathematical model Maintenance engineering Reliability Stochastic processes Predictive models

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Design of a Takagi-Sugeno State and Disturbance Observer for a Torque-Controlled Hydrostatic Transmission 24

Design of a Takagi-Sugeno State and Disturbance Observer for...

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24th international conference on methods and models in automation and robotics (mmar)

作者： Danh, Dang Ngoc Aschemann, Harald Univ Rostock Chair Mechatron Justus Von Liebig Weg 6 D-18059 Rostock Germany

ISBN: (纸本)9781728109336

In this paper, a Takagi-Sugeno (TS) state and disturbance observer is designed. the corresponding estimates are employed in a decentralized control approach for the normalized tilt angle of the hydraulic motor as well as the motor torque of a hydrostatic transmission. For the observer design, a nonlinear state-space model is written in quasi-linear form and extended by two integrator disturbance models. the observer gain matrix is derived by an exact interpolation of optimal designs at the vertices of a polytopic description using corresponding membership functions. Asymptotic stability of the observer error dynamics is guaranteed by solving a set of linear matrix inequalities (LMIs) resulting in a joint Lyapunov function. For an accurate trajectory tracking, feedback control is extended by feedforward control. the estimated disturbances from the TS observer are used for a subsequent disturbance rejection. the performance of the observer-based control structure is shown by simulations based on a validated model of a dedicated test rig which is available at the Chair of Mechatronics, University of Rostock.

关键词： Hydraulic systems Observers Torque Takagi-Sugeno model Angular velocity Mathematical model Numerical models

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