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Zhernovyi Y.V.,Ivan Franko National University of Lviv | Zhernovyi K.Y.,Banking Institute University
Cybernetics and Systems Analysis | Year: 2017

This article proposes a method for analyzing the following M/E2/3/m queuing systems: the standard system and also systems with threshold and hysteresis strategies of random dropping of customers in order to control the input flow. Recurrence relations are obtained to compute the stationary distribution of the number of customers and steady-state characteristics. The constructed algorithms were tested on examples with the use of simulation models constructed with the help of GPSS World. © 2017 Springer Science+Business Media New York


Zhernovyi K.Y.,Banking Institute University
Cybernetics and Systems Analysis | Year: 2017

The author proposes a method to study M/E2/2/m and M/E2/2/∞ queueing systems: standard systems and systems with the threshold and hysteretic strategies of random dropping of customers in order to control the input flow. Recurrence relations are obtained to compute the stationary distribution of the number of customers in the system and stationary characteristics. The constructed algorithms are tested on examples using simulation models constructed with the assistance of the GPSS World tools. © 2017 Springer Science+Business Media New York


Pancik J.,Banking Institute University | Pancik M.,Bratislava
Proceedings of 25th International Conference Radioelektronika, RADIOELEKTRONIKA 2015 | Year: 2015

This article is focused on the design of low cost electronics and software solution for the radar front-end electronics based on the Universal Software Radio Peripheral (USRP) for short range FMCW (Frequency Modulated - Continuous Wave) Synthetic Aperture Radar (SAR) system. We developed the radar front-end electronics with USRP type N210 from Ettus Research. As first, we describe requirements for SAR front-end, as second we in the detail describe the system process synchronization, the primary raw signal processing and necessary USRP FPGA program modification. Also we describe by us developed PC control program for system synchronization and raw data transfer control between SAR system high frequency part, USRP radar front-end and measurement PC. Finally, the measurement arrangement of the SAR system testing, real photo of all system and several results from the tests we show. © 2015 IEEE.


Kavun S.,Banking Institute University
International Journal of Data Analysis Techniques and Strategies | Year: 2016

Presented by the author's indicative-geometric method (IGM) is a new method for estimating the significance or any properties or features of business entities. This method can help to choose the best (or worst) business entity from some set based on its aggregate indicator. In addition, this method can be used for estimation, when the studied object has some indicator values of the different physical nature. The principal advantages of the indicative-geometric method are the following: 1) versatility; 2) ease of implementation; 3) high speed calculations; 4) visibility by use; 5) commonality contribute of the input parameters or indicators. © Copyright 2016 Inderscience Enterprises Ltd.


Yemelyanov V.A.,Banking Institute University
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu | Year: 2014

Purpose. To develop intelligent information technology for processing visual information for the metals state diagnostics. As against the already existing technologies it will allow diagnosing the state of metal by all characteristics (chemical composition, structure, properties). Methodology. The methods of comparative study, scientific abstraction and mathematical simulation have been used in the study. Findings. The basic stages of the intelligent information technology have been described. The neural networks choice to solve the problem of automation metallographic analysis at all its stages has been substantiated. The neural networks results for metallographic images recognition to determine quantitative information about metal have been shown. The neural network results to determine the metals properties by samples of steel of different grades have been described. Originality. We have developed the intelligent information technology of visual information processing for the metals state diagnostics based on the neural networks and the precedents theory. It can diagnose the metals state by all its characteristics (chemical composition, structure, properties). Practical value. Scientific results of the work allowed us to develop the intelligent information technology of the visual information processing for determination of metals properties. The software which implements the methods and the stages of the developed information technology have been created. © 2014, Natsional'nyi Hirnychyi Universytet. All rights reserved.


Yemelyanov V.A.,Banking Institute University
Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu | Year: 2014

Purpose. To develop the thermograms processing method of the lining objects to determine their lining burnout locations. Methodology. The method of converting a local adaptive contrast and filters of Prewitt, Sobel, Roberts, and Canny for preprocessing thermogram images have been applied. The neural network for thermogram recognition has been used. Findings. The main stages of the image processing method for lining objects thermal control have been described. The thermogram image processing technique of the moved mixers and wagons with liquid iron has been proposed and described. The approach for improving the thermal images quality by adaptive transform local contrast has been proposed. The approach to identification of the thermogram informative areas by filtration has been studied. The comparative results of thermogram image filtering to separate the burnout areas from the image background have been shown. The algorithm for vectorizing the thermogram images to highlight burnout areas on the filtered image has been developed. The neural networks choice to solve the problem for thermogram image recognition of the lining objects has been substantiated. The thermogram image processing results of the moved mixers and wagon with liquid iron to determine their technical condition have been described. Originality. The thermogram image processing method of the lining objects for thermal control which based on a combination of the neural networks and classical image processing methods and which allows diagnosing the lining objects condition (determining burnout areas) has been developed. Practical value. The practical value of these results is that the provisions of this scientific work allowed carrying out technical diagnostics of the lining objects by determining their lining burnout areas.


Kavun S.,Banking Institute University
International Journal of Computing Science and Mathematics | Year: 2015

The main purpose of this paper is to show some conceptual fundamentals for a new theory of mathematical interpretation (TMI), which can be used for solving the non-formalised and heavy-formalised tasks in different areas of science. This theory has all principal factors, which are inherent to any theory. Foremost, this theory has the historical, theoretical, mathematical and simulation fundamentals. In addition, it has the mathematical description as a set of the postulates. Thus, this theory will be able to expand a sphere of using of an existing mathematical tool in other (specific) areas of science and some possibilities for their further application. This everything is confirming the uniformity and comprehensiveness of the existing mathematical tool, and it is showing some possibilities of a mutual penetration of different areas to each other. Copyright © 2015 Inderscience Enterprises Ltd.


Kozlovskii Yu.M.,Banking Institute University
Optics Communications | Year: 2013

Mutual space-frequency distribution is proposed and both the Wigner and Weyl distribution functions are shown to be some particular cases of this distribution. The simple connection is established between the Wigner and Weyl distributions. Mutual distribution of Gaussian signal is analytically obtained. It is shown that the Wigner distribution is formed as the rotational displacement of the Weyl distribution on informational diagram of conjugate coordinates (x;p) on an angle proportional to the mutual parameter t. The results are presented of direct calculations of mutual distribution for Gaussian signal in the mutual domain. © 2013 Elsevier B.V.


Pancik J.,Banking Institute University
International Conference on Applied Electronics | Year: 2015

In the paper we describe the control electronics for an industrial test system based on a low cost PLC. The developed system is a hydraulic pulse system and it generates series of high pressure hydraulic pulses (max. 200bar) and is based on pneumatic-hydraulic circuits. We describe requirements, an overall concept of the embedded control system, user interface, security features and network connectivity. In the description of the software solution we describe implementation of hierarchical ordered program threads (multithreaded program) and main control state machine. At the conclusion, we describe the calibration method of the system and calibration curves, we present the schematic diagram and a photo of a functional prototype of the system. © 2015 University of West Bohemia.


Pancik J.,Banking Institute University
International Conference on Applied Electronics | Year: 2012

The paper deals with the simulation calculation of the optical flow with SAD algorithm. Unlike other implementing optical flow calculation for 2D sensors, we used a sensor with concentrically arranged elementary detectors. In paper we deal with the realization of geometric log-polar transformation. This facilitated the creation of virtual concentric sensor from classical 2D sensor. We described the implementation of the calculation of optical flow for virtual sensor based on FPGA. We also discuss the properties of a new sensor for use it in anti-collision systems. © 2012 Univ of West Bohemia.

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