Automatyka/Automatics
type: channel
description: Automatyka/Automatics publishes original papers in an automatic control engineering field and related disciplines including: control theory and optimisation, dynamical system analysis and synthesis, control engineering applications, electrical engineering, computer science, information technology, electronics, and biomedical engineering. Discussion and review papers presenting current state of the art as well as new and emerging areas are also welkomed. The journal publishes letters to the editorial board, reviews, bibliographies and biographies of distinguished researchers in pertinent fields, historical materials, etc.
publisher: AGH University of Science and Technology Press
language: en
publication name: Automatyka/Automatics
issn: 1429-3447
items: Online environment for data acquisition from car sensors
items: A novel method to simplify Boolean functions
items: A sufficient condition for existence of constantly nondominated trajectories in linear time-invariant systems
items: Supervising control system for oriented PV using weather forecast
items: Editor's note
items: On D-Decomposition of Periodically Sampled Hybrid Systems
items: Kronika i informacje
items: Asymmetric cryptography and trapdoor one-way functions
items: Modelling of Unmanned Aerial Vehicle – Tricopter
items: Od Redakcji
items: Wspomnienie o doktorze inżynierze Piotrze Tabakowskim
items: Design, construction and control of a spherical rolling robot with internal two-wheel cart
items: The use of EMG signal in human-machine interface
items: New approach in modelling of the patients behavior in Primary Health Care (PHC)
items: The approximate location of imperfection in a unit circle using the spectrum of Laplace operator as a research tool
items: A Comparison between Integer Order and Non-integer Order Controllers Applied to a Water Levelling System
items: Analytic Method Grafpol TM of Synthesing Sequential Control Systems
items: Shape Optimization of a Flywheel
items: A Thermal Model of the Building for the Design of Temperature Control Algorithms
items: Time Stability of Computer Generated Control in Real-time
items: Application of Fuzzy Cognitive Maps to Analysis of Development Scenarios for Academic Units
items: FPGA Based Hardware Accelerator for Parallel Robot Kinematic Calculations
items: Application of Android OS as Real-time Control Platform
items: Rapid Design and Development of Control Applications for Electrical Engineering
items: An Approach to Guidelines Implementation in an E-health System Supporting Chronic Care

Online environment for data acquisition from car sensors
type: item
description: Modern cars are equipped with a lot of electronic devices called Electronic Control Units (ECU). They collect diagnostic data from different car components to control their work, assess the quality of their work and and detect defects. Regardless of the development of on-board computers in cars, only a small amount of information is passed on to the driver. The paper describes how to build a data collecting environment for acquisition real data from a car. The system whose components include an Android based smartphone and Torque PRO application is able to send data via the Internet in real-time to the chosen server. The collected data can be further analysed both on-line and off-line.
subject: Articles
  topic: section
subject: car sensors
  topic: keywords
subject: data-acquisition system
  topic: keywords
subject: Torque PRO application
  topic: keywords
subject: computer science
  topic: disciplines
subject: automatics
  topic: disciplines
creator: Bartosz Kowalik
creator: Marcin Szpyrka
rights: Copyright (c) 2019 Automatyka/Automatics
date: 2019-12-07
publication date: 2019-12-07
starting page: 7
ending page: 7
doi: 10.7494/automat.2019.23.1.7

A novel method to simplify Boolean functions
type: item
description: Most methods for the determination of prime implicants of a Boolean function depend on minterms of the function. Deviating from this philosophy, this paper presents a method which depends on maxterms ( minterms of the complement of the function) for this purpose. Normally maxterms are used to get prime implicates and not prime implicants. It is shown that all prime implicants of a Boolean function can be obtained by expanding and simplifying any product of sums form of the function appropriately. No special form of product of sums is required. More generally prime implicants can be generated from any form of the function by converting it into a POS using well known techniques. The prime implicants of a product of Boolean functions can be obtained from the prime implicants of individual Boolean functions. This allows us to handle big functions by breaking them into product of smaller functions. A simple method is presented to obtain one minimal set of prime implicants from all prime implicants without using minterms. Similar statements hold for prime implicates also . In particular all prime implicates can be obtained from any sum of products form. Twelve variable examples are solved to illustrate the methods.
subject: Articles
  topic: section
subject: Boolean functions
  topic: keywords
subject: minimization
  topic: keywords
subject: prime implicants
  topic: keywords
subject: prime implicates
  topic: keywords
subject: Digital Electronics
  topic: disciplines
subject: Boolean Algebra
  topic: disciplines
subject: Logic Circuits
  topic: disciplines
creator: VIshnuvajjula Charan Prasad
rights: Copyright (c) 2019 Automatyka/Automatics
date: 2019-04-21
publication date: 2019-04-21
starting page: 29
ending page: 29
doi: 10.7494/automat.2018.22.2.29

A sufficient condition for existence of constantly nondominated trajectories in linear time-invariant systems
type: item
description: The paper considers multicriteria optimal control problem in linear time-invariant systems with a single bounded input. It is proven that under certain assumptions a state trajectory is nondominated throughout the whole control process if and only if it is yielded by a control signal which belongs to a particular class of bang-bang functions. Furthermore, an explicit formula relating hyperplanes tangent to attainable set and control switching times is presented.
subject: Articles
  topic: section
subject: multicriteria optimal control
  topic: keywords
subject: attainable sets
  topic: keywords
subject: reachable sets
  topic: keywords
subject: hyperplanes method
  topic: keywords
subject: control theory
  topic: disciplines
subject: optimal control
  topic: disciplines
creator: Michał Domka
rights: Copyright (c) 2019 Automatyka/Automatics
date: 2019-03-22
publication date: 2019-03-22
starting page: 7
ending page: 7
doi: 10.7494/automat.2018.22.1.7

Supervising control system for oriented PV using weather forecast
type: item
description: This paper is devoted to the problem of control of oriented PV using weather forecast. Described solution presents usage of fuzzy logic fundamentals in order to increase efficiency of PV system. Differs from most of related papers, it's using fuzzy logic in order to process weather condition numeric values as an input. All of necessary steps to reproduce proposed solution has been included. Artykuł ten jest poświęcony tematyce opracowania sterowania nadrzędnego ogniw słonecznych, za pomocą prognoz pogody. Przedstawione w nim rozwiązanie korzysta z podstaw logiki rozmytej, aby zwiększyć wydajność energetyczną ogniw solarnych. W odróżnieniu od większośći prac o podobnej tematyce, wnioskowanie rozmyte zostało użyte w celu przetworzenia danych numerycznych uzyskanych z prognozy pogody. Wszystkie komponenty potrzebne do odtworzenia rozwiązania zostały opisane w artykule.
subject: Articles
  topic: section
subject: PV
  topic: keywords
subject: Fuzzy Logic
  topic: keywords
subject: Weather
  topic: keywords
subject: Forecast
  topic: keywords
subject: Control
  topic: keywords
subject: Supervising
  topic: keywords
subject: Artificial Intelligence
  topic: keywords
subject: Automatics
  topic: disciplines
creator: Maciej Ciurej
rights: Copyright (c) 2018 Automatyka/Automatics
date: 2018-08-01
publication date: 2018-08-01
starting page: 29
ending page: 29
doi: 10.7494/automat.2017.21.2.29

Editor's note
type: item
subject: Chronicle
  topic: section
creator: Krzysztof Oprzędkiewicz
rights: Copyright (c) 2018 Automatyka/Automatics
date: 2018-08-01
publication date: 2018-08-01
starting page: 43
ending page: 43
doi: 10.7494/automat.2017.21.2.43

On D-Decomposition of Periodically Sampled Hybrid Systems
type: item
description: The problem of the stability of nonunifomly sampled systems is considerate. To this aim, the D decomposition method for determining stability region in parameter space is introduced. Basing on obtained simulation results some comparisons of systems with dierent sampling patterns are considerate.
subject: Articles
  topic: section
subject: periodic sampling
  topic: keywords
subject: hybrid systems
  topic: keywords
subject: d-decomposition stability
  topic: keywords
subject: Control engineering
  topic: disciplines
creator: Justyna Jańczak
rights: Copyright (c) 2018 Automatyka/Automatics
date: 2018-08-01
publication date: 2018-08-01
starting page: 7
ending page: 7
doi: 10.7494/automat.2017.21.1.7

Editor's note
type: item
subject: Chronicle
  topic: section
creator: Krzysztof Oprzędkiewicz
rights: Copyright (c) 2018 Automatyka/Automatics
date: 2018-08-01
publication date: 2018-08-01
starting page: 17
ending page: 17
doi: 10.7494/automat.2017.21.1.17

Kronika i informacje
type: item
subject: Chronicle
  topic: section
creator: Wojciech Mitkowski
rights: Copyright (c) 2018 Automatyka/Automatics
date: 2018-01-29
publication date: 2018-01-29
starting page: 53
ending page: 53
doi: 10.7494/automat.2016.20.2.53

Asymmetric cryptography and trapdoor one-way functions
type: item
description: The asymmetric-key (public-key) encryption scheme is considered to be the most important discovery in the history of cryptography. It is based on the use of two complementary keys generated according to a chosen trapdoor one-way function (TOWF). Since its first implementation, asymmetric encryption has revolutionized our way of communicating as well as the safety of information transfer, and it is now widely used around the world for various purposes, especially in the field of online transaction security. The safety of the asymmetric-key scheme relies on the assumption that any known cryptographic attack using an efficient problem-solving algorithm will not be able to succeed in applying the inverse (decryption) function onto the cryptogram in a polynomial time without additional knowledge (secret information). The most-challenging aspect of creating a new asymmetric cryptographic algorithm is selecting a one-way function for encryption purposes and finding a trapdoor in its inverse. In this paper, the concept of public-key cryptography will be explained using the RSA algorithm as an example. In addition, the review of the most-important functions that are considered to be trapdoor one-way functions will be conducted.
subject: Articles
  topic: section
subject: cryptography
  topic: keywords
subject: RSA algorithm
  topic: keywords
subject: one-way function
  topic: keywords
subject: one-way trapdoor function
  topic: keywords
subject: public-key encryption
  topic: keywords
subject: asymmetric encryption
  topic: keywords
creator: Natalia Krzyworzeka
rights: Copyright (c) 2018 Automatyka/Automatics
date: 2018-01-29
publication date: 2018-01-29
starting page: 39
ending page: 39
doi: 10.7494/automat.2016.20.2.39

Kronika i informacje
type: item
subject: Chronicle
  topic: section
creator: Wojciech Mitkowski
rights: Copyright (c) 2017 Automatyka/Automatics
date: 2017-07-21
publication date: 2017-07-21
starting page: 27
ending page: 27
doi: 10.7494/automat.2016.20.1.27

Modelling of Unmanned Aerial Vehicle – Tricopter
type: item
description: This paper presents detailed models of small aerial unmanned vehicle’s subsystems like propeller, BLDC motor or Li–poly battery. Furthermore, more accurate dynamic model of Tricopter is described. This, multi–system model can be used to synthesize precise controller which may have the advantage in hazardous situations. W niniejszym artykule zaprezentowano modele poszczególnych podsystemów wchodzących w skład bezzałogowych statków latających. Opisano między innymi zespół napędowy składający się z silnika bezszczotkowego (BLDC) i śmigła oraz akumulator litowo-polimerowy. Dodatkowo zaproponowano dokładniejszy model dynamiki lotu tricoptera. Przytoczone modele można wykorzystać do syntezy bardziej optymalnego regulatora, który może mieć przewagę w krytycznych sytuacjach.
subject: Articles
  topic: section
subject: UAV modelling
  topic: keywords
subject: flight dynamics
  topic: keywords
subject: Tricopter
  topic: keywords
subject: BLDC
  topic: keywords
subject: dynamika lotu
  topic: keywords
subject: modelowanie UAV
  topic: keywords
subject: tricopter
  topic: keywords
subject: bezzałogowy statek latający
  topic: keywords
creator: Jakub Źrebiec
rights: Copyright (c) 2017 Automatyka/Automatics
date: 2017-07-21
publication date: 2017-07-21
starting page: 7
ending page: 7
doi: 10.7494/automat.2016.20.1.7

Od Redakcji
type: item
subject: Chronicle
  topic: section
creator: Wojciech Mitkowski
rights: Copyright (c) 2017 Automatyka/Automatics
date: 2017-07-21
publication date: 2017-07-21
starting page: 43
ending page: 43
doi: 10.7494/automat.2015.19.2.43

Wspomnienie o doktorze inżynierze Piotrze Tabakowskim
type: item
subject: Chronicle
  topic: section
creator: Andrzej Turnau
rights: Copyright (c) 2017 Automatyka/Automatics
date: 2017-07-21
publication date: 2017-07-21
starting page: 45
ending page: 45
doi: 10.7494/automat.2015.19.2.45

Design, construction and control of a spherical rolling robot with internal two-wheel cart
type: item
description: This elaboration presents a spherical rolling robot with a 2-wheel cart. The custom design of the hardware and control software is presented to demonstrate the solution. The robot was started to realize an autonomous task. The embedded robot control system is based on a 32-bit microcontroller and uses a Bluetooth module for wireless communication. The simplified model has been proposed and its parameters identified. The results obtained at the simulation and experimental stages are shown and compared. Finally, the robot’s motion was recorded and analyzed with the support of image signal processing techniques. W artykule przedstawiony został opis sferycznego robota mobilnego z napędem w postaci dwukołowego wózka. Praca prezentuje dedykowany układ mechaniczny, elektroniczny oraz oprogramowanie sterujące. System wbudowany robota jest oparty na 32-bitowym mikrokontrolerze oraz wykorzystuje bezprzewodową komunikację Bluetooth. Parametry uproszczonego modelu matematycznego robota sferycznego zostały zidentyfikowane, a wyniki symulacji porównano do rezultatów rzeczywistych eksperymentów. Analiza obrazu zarejestrowanego za pomocą zewnętrznej kamery pozwoliła na obserwacje trajektorii ruchu robota.
subject: Articles
  topic: section
subject: spherical robot
  topic: keywords
subject: sphere
  topic: keywords
subject: mobile robot
  topic: keywords
subject: Lagrange
  topic: keywords
subject: internal two-wheel cart
  topic: keywords
subject: robot sferyczny
  topic: keywords
subject: sfera
  topic: keywords
subject: robot mobilny
  topic: keywords
subject: dwukołowy wózek
  topic: keywords
creator: Szymon Firlej
rights: Copyright (c) 2017 Automatyka/Automatics
date: 2017-07-21
publication date: 2017-07-21
starting page: 63
ending page: 63
doi: 10.7494/automat.2015.19.2.63

The use of EMG signal in human-machine interface
type: item
description: In this paper, the analysis and processing algorithms of EMG signals have been presented. The main purpose of the research was to verify the usefulness of EMG signals in controlling a bionic prosthesis or exoskeleton. The physiological nature of the EMG signal has been introduced. An original measurement system has been presented. Analysis of the time and frequency domains of the signal has been conducted to extract vital information that the signal carries. Methods of using the EMG signal as a control signal for devices that operate in a human-machine interface have been proposed. The result shows that a processed EMG signal can be used as a basis for a simple control system. W artykule przedstawiono analizę oraz propozycję algorytmów przetwarzania sygnału EMG. Głównym celem badań było sprawdzenie przydatności tego sygnału dla sterowania bioniczną protezą lub egzoszkieletem. W pracy został przedstawiony fizjologiczny charakter sygnału EMG. Przedstawiono autorski system pomiarowy. Przeprowadzono analizę sygnału w dziedzinie czasu i częstotliwości, aby wyodrębnić informacje, które niesie sygnał EMG. Zaproponowano sposoby wykorzystania sygnału EMG jako sygnał sterujący dla urządzeń, które działają w interfejsie człowiek-maszyna. Wyniki pokazują, że przetworzony sygnał EMG mogą być wykorzystywane jako podstawa dla prostego układu sterowania.
subject: Articles
  topic: section
subject: biomedical signals
  topic: keywords
subject: EMG
  topic: keywords
subject: digital signal processing
  topic: keywords
subject: instrumental amplifier
  topic: keywords
subject: sygnały biomedyczne
  topic: keywords
subject: cyfrowe przetwarzanie sygnałów
  topic: keywords
subject: wzmacniacz instrumentalny
  topic: keywords
creator: Dawid Winiarski
rights: Copyright (c) 2017 Automatyka/Automatics
date: 2017-07-21
publication date: 2017-07-21
starting page: 47
ending page: 47
doi: 10.7494/automat.2015.19.2.47

New approach in modelling of the patients behavior in Primary Health Care (PHC)
type: item
description: The purpose of this paper is to show the concept of simulation of Primary Health Care (PHC) patients behavior. There are two reasons for interest in this area. The first of them is the need for support in decision making regarding financing and management of PHC facilities on levels from national (Natonal Health Fund) to local (PHC provider). The second one is the lack of effective methods for such population modeling. In this paper author describe an idea of probability distribution modeling and present preliminary results of patient visits simulation over a period of a year. Celem artykułu jest pokazanie koncepcji symulacji zachowań pacjentów Podstawowej Opieki Zdrowotnej (POZ). Temat ten jest ważny z dwóch powodów. Po pierwsze model taki mógłby posłużyć w podejmowaniu decyzji w rozdzielaniu funduszy pomiędzy jednostkami POZ przez Narodowy Fundusz Zdrowia. Drugim z powodów jest obecnie brak efektywnych metod modelowania populacji POZ. W niniejszej pracy autor opisuje ideę modelowania populacji przy użyciu rozkładu prawdopodobieństwa i przedstawia wstępne wyniki symulacji dla wizyt pacjentów w ciągu roku.
subject: Articles
  topic: section
subject: PHC
  topic: keywords
subject: stochastic process modelling
  topic: keywords
subject: population modelling
  topic: keywords
subject: dynamical systems
  topic: disciplines
creator: Waldemar Bauer
rights: Copyright (c) 2015 Automatyka/Automatics
date: 2017-02-21
publication date: 2017-02-21
starting page: 17
ending page: 17
doi: 10.7494/automat.2015.19.1.17

The approximate location of imperfection in a unit circle using the spectrum of Laplace operator as a research tool
type: item
description: In the following article we will try to find the dependence between the location of imperfections in a closed domain and the spectrum of the Laplace operator for this region. In the theoretical part we will define the spectral problem which is solved by eigenvalues. These eigenvalues are dependent on location and size of the imperfection. However, we are interested in the inverse task which consists in localizing the imperfection of the domain on a basis of the spectrum of the operator. W artykule przeanalizowano zastosowanie widma operatora Laplace'a jako narzędzia do przybliżonej lokalizacji uszkodzeń w kole jednostkowym. W części teoretycznej zdefiniowano zagadnienie spektralne rozwiązywane za pomocą wartości własnych. Znalezione wartości zależą od położenia i rozmiaru uszkodzeń. W artykule został zdefiniowany problem odwrotny, który polega na znalezieniu miejsca uszkodzenia na podstawie znanego widma.
subject: Articles
  topic: section
subject: Laplace operator
  topic: keywords
subject: location of imperfections
  topic: keywords
subject: spectrum analysis
  topic: keywords
subject: spectral theory
  topic: keywords
subject: eigenvalues
  topic: keywords
subject: control theory
  topic: disciplines
creator: Mateusz Brzęk
creator: Marta Zagórowska
creator: Wojciech Mitkowski
rights: Copyright (c) 2015 Automatyka/Automatics
date: 2017-02-21
publication date: 2017-02-21
starting page: 9
ending page: 9
doi: 10.7494/automat.2015.19.1.9

Kronika i informacje
type: item
subject: Chronicle
  topic: section
creator: Wojciech Mitkowski
rights: Copyright (c) 2017 Automatyka/Automatics
date: 2017-02-21
publication date: 2017-02-21
starting page: 29
ending page: 29
doi: 10.7494/automat.2015.19.1.29

Kronika i informacje
type: item
subject: Chronicle
  topic: section
creator: Wojciech Mitkowski
rights: Copyright (c) 2014 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02

A Comparison between Integer Order and Non-integer Order Controllers Applied to a Water Levelling System
type: item
description: The purpose of this paper is to compare responses of two systems with two types of controllers: integer order PI controller and non-integer order PIλ controller (FOPI). Comparison is made on the grounds of time domain responses of waters level in tank. In order to design both of the controllers, numerical model is established and described. Synthesis method with use of simulated annealing optimisation method is developed for each controller. In order to do a correct comparison, the two control systems have the same designing parameters. Matlab/Simulink environment and numerical model are used to do the computing. Numerically designed controllers are verified experimentally with tank system. The obtained results show that using non-integer order PIλ controller instead of a ”traditional” PI controller in simple integrating systems is useless.
subject: Articles
  topic: section
subject: non-integer order systems
  topic: keywords
subject: PID
  topic: keywords
subject: optimization
  topic: keywords
subject: tank system
  topic: keywords
creator: Bartosz Kania
creator: Tomasz Dziwiński
creator: Waldemar Bauer
creator: Marta Zagórowska
creator: Jerzy Baranowski
rights: Copyright (c) 2015 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 71
ending page: 71
doi: 10.7494/automat.2014.18.2.71

Analytic Method Grafpol TM of Synthesing Sequential Control Systems
type: item
description: This paper presents the Grafpol TM method and principles of synthesising sequential control algorithms by this method, as well as examples of applying this method for modelling processes and programming PLC controllers.
subject: Articles
  topic: section
subject: Grafpol method
  topic: keywords
subject: PLC controller
  topic: keywords
subject: sequential control system
  topic: keywords
creator: Sergiusz Ciskowski
creator: Tadeusz Mikulczyński
creator: Zdzisław Samsonowicz
creator: Rafał Więcławek
rights: Copyright (c) 2014 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 51
ending page: 51
doi: 10.7494/automat.2014.18.2.51

Kronika i informacje
type: item
subject: Chronicle
  topic: section
creator: Wojciech Mitkowski
rights: Copyright (c) 2014 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02

Shape Optimization of a Flywheel
type: item
description: The article presents the problem of the use of flywheels as an energy storage. More specifically focused on the issue of the optimal shape for isotropic materials and shapes, for which you can analytically determine the internal stress. The optimality criterion takes into account parameters such as moment of inertia (stored energy) and energy density. Efforts were made to choose a compromise between these two conflicting values, and therefore have been used multi-criteria optimization methods.
subject: Articles
  topic: section
subject: flywheel
  topic: keywords
subject: optimization methods
  topic: keywords
subject: energy storage
  topic: keywords
creator: Maciej Różewicz
rights: Copyright (c) 2014 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 23
ending page: 23
doi: 10.7494/automat.2014.18.1.23

A Thermal Model of the Building for the Design of Temperature Control Algorithms
type: item
description: This paper presents an efficient and effective method for modeling the temperature dynamics in buildings. The method relies on the simultaneous application of heat transfer and engineering thermodynamics principles. The model takes into consideration dissipated thermal power from the room (heat loses by conduction and ventilation) and applied thermal power to the room (radiator, solar, and internal heat gains). The model parameters can be determined uniquely from the geometry of the building and thermal properties of construction materials. The model can be used to research and validate the algorithms for thermal control in the building. An exemplary building structure is used to verify the theoretical analysis and mathematical formulation. The example includes creating the model, calculating the parameters, designing the temperature control algorithm, and making the simulations.
subject: Articles
  topic: section
subject: modeling
  topic: keywords
subject: simulation
  topic: keywords
subject: building
  topic: keywords
subject: temperature dynamics
  topic: keywords
subject: heat transfer
  topic: keywords
creator: Paweł Skruch
rights: Copyright (c) 2014 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 9
ending page: 9
doi: 10.7494/automat.2014.18.1.9

Time Stability of Computer Generated Control in Real-time
type: item
description: This paper is devoted to analyze time stability of robot arm controller. Controller is implemented on PC platform with Windows XP and Matlab/Simulink environment with additional toolbox RT-CON. Described robot is 3 DOF Stanford Arm. It is powered with high torque, gearless electrical engines. The analyze of jitter effect influence on robot period moves was made. Experiment was made with PD and PD extended by neural network controllers. During experiment the test of influence of stressed system on control generation was made.
subject: Articles
  topic: section
subject: real-time
  topic: keywords
subject: control
  topic: keywords
subject: PD
  topic: keywords
subject: Windows
  topic: keywords
subject: Stanford Arm
  topic: keywords
subject: jitter
  topic: keywords
subject: neural network
  topic: keywords
creator: Wojciech Zwonarz
rights: Copyright (c) 2015 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 271
ending page: 271
doi: 10.7494/automat.2013.17.2.271

Application of Fuzzy Cognitive Maps to Analysis of Development Scenarios for Academic Units
type: item
description: For many classes of problems it is difficult to make decisions, assessments or develop plans based on precise quantitative models. Fuzzy Cognitive Maps (FCM) are a well-known tool for qualitative analysis of systems that uses a simple representation of knowledge in the form of a graph of concepts linked by causal relationships. Advantages of FCMs are the ease of gathering and representing knowledge and the simplicity of reasoning techniques, very close to neural networks. The paper gives results of experiments aiming at application of FCMs to analysis of development scenarios for research and teaching units. The analyzes were conducted for four representative classes of academic units: strong, medium, weak with a development potential and weak; their results are discussed and several observations related to reasoning with FCMs are made.
subject: Articles
  topic: section
subject: fuzzy cognitive maps
  topic: keywords
subject: fuzzy logic
  topic: keywords
subject: artificial intelligence
  topic: keywords
subject: qualitative models
  topic: keywords
creator: Piotr Szwed
rights: Copyright (c) 2015 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 229
ending page: 229
doi: 10.7494/automat.2013.17.2.229

FPGA Based Hardware Accelerator for Parallel Robot Kinematic Calculations
type: item
description: The paper presents an application of FPGA to support the calculation of the inverse kinematics problem of a parallel robot. The presented robot is designed for milling by moving the spindle along a desired trajectory generated in Cartesian space. This means that for each point of the trajectory solution of the inverse kinematics problem is needed. The resulting sequence of data creates the joint space trajectory. The trajectory in joint space must be calculated in real time. Required high frequency and complex equations makes the problem of the calculation time crucial. The paper shows how to increase the computing power for inverse kinematics problem solving, preserving required calculation accuracy, by augmenting the arithmetic coprocessor with custom instructions. The paper shows hardware implementation of the accelerator and presents results of calculations per-formed on Altera FPGA chip.
subject: Articles
  topic: section
subject: parallel robots
  topic: keywords
subject: inverse kinematics problem
  topic: keywords
subject: implementation of algorithms
  topic: keywords
subject: FPGA
  topic: keywords
creator: Grzegorz Karpiel
creator: Konrad Gac
creator: Maciej Petko
rights: Copyright (c) 2015 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 187
ending page: 187
doi: 10.7494/automat.2013.17.2.187

Application of Android OS as Real-time Control Platform
type: item
description: This paper presents an application of an Android device to control a laboratory Antilock Breaking System (ABS). The controllers to avoid the locking of the wheel are considered. The architecture of Android OS is given. The discussion is focused on the features of the Android helpful to build real-time control systems. The mobile phone acts as a controller performing the control algorithm of avoiding the locks of the wheel. The controller application is implemented in Java which is the basic Android development language. The controller use only standard system functions without the use of real-time extensions. The results of experiments show punctuality of control task running on Android. Also the braking experiments are given. The conclusions include comments on the applicability of Android devices as a platform for real-time control.
subject: Articles
  topic: section
subject: real-time control
  topic: keywords
subject: Android
  topic: keywords
subject: Java
  topic: keywords
subject: Antilock Breaking System
  topic: keywords
creator: Krzysztof Kołek
rights: Copyright (c) 2015 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 197
ending page: 197
doi: 10.7494/automat.2013.17.2.197

Rapid Design and Development of Control Applications for Electrical Engineering
type: item
description: This paper presents a control application programming concept based on attributive logic and context-based reasoning. General features and benefits. comparing with other contemporary approaches, are given. The proposed solution is targeted at electric machine tests and diagnostics. An illustrative example of programming an induction motor no-load test which compares the proposed solution with a Matlab-based application is also given.
subject: Articles
  topic: section
subject: programming. control systems
  topic: keywords
subject: software design
  topic: keywords
subject: electric machines
  topic: keywords
creator: Igor Wojnicki
creator: Michał Rad
rights: Copyright (c) 2015 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 263
ending page: 263
doi: 10.7494/automat.2013.17.2.263

An Approach to Guidelines Implementation in an E-health System Supporting Chronic Care
type: item
description: Guidelines developed in line with Evidence-Based Medicine paradigm usually take form of narrative recommendations formulated on the basis of available evidence resulting from clinical trials and other types of studies. For past ten years there were developed several Formal Guidelines Representation languages that attempted to express them in form of algorithms or processes. Analysis of specific requirements related to e-health and in particular telemonitoring systems indicated, that a process oriented formalization of guidelines is in this case inappropriate, as such systems should be reactive, event driven and enable adaptation to cope with the quality of entered data. In this paper we describe an approach to guidelines implementation in the e-health system. Contrary to various FGR languages developed earlier the decision support will be based on the set of fuzzy rules that on the technical level will be implemented as XQuery transformations of XML data. We discuss this approach on an example related to the management of bronchial asthma, as customization of the system to this disease was selected as one of the proof-of-concept exemplifications of the system.
subject: Articles
  topic: section
subject: e-health system. medical guidelines
  topic: keywords
subject: fuzzy rules
  topic: keywords
creator: Piotr Szwed
creator: Mariusz Duplaga
rights: Copyright (c) 2015 Automatyka/Automatics
date: 2015-07-02
publication date: 2015-07-02
starting page: 241
ending page: 241
doi: 10.7494/automat.2013.17.2.241