Suchasni informatsiini sistemi最新文献

{"title":"Design and optimization of structured cables systems for automation of production processes of the enterprise","authors":"T. Smirnova, K. Buravchenko, Andrii Shcherban, Eduard Bahdasarian, A. Kovalenko","doi":"10.20998/2522-9052.2022.1.21","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.21","url":null,"abstract":"The object of research is the process of improving the network architecture of enterprises in order to further optimize production processes. The subject of research is the design and optimization of structured cabling systems to automate the production processes of the enterprise. The aim of the work is to improve the method of designing and optimizing structured cabling systems for the transport needs of the cellular network for the needs of the enterprise. The study determined that the process of planning a radio network to automate production processes of the enterprise must be performed in accordance with the following sequence of steps: design of radio network coverage to determine the location of each base station (5G - gNb) and construction of communication transport segment with location cross-country premises. In this paper, research is conducted on the construction of a communication transport segment with the location of cross-country premises. For this purpose, the scope of the statistical method is determined and the choice of the location of the technical premises of the cross floor is substantiated. Conclusions. The research conducted in this paper allowed to develop methods for improving the network architecture of enterprises in order to further optimize production processes. As part of this, a 5G network planning method was developed to automate the production processes of the enterprise, which is to consistently ensure the design of the radio network coverage to determine the location of each base station using an optimized model to estimate the loss of radio signal power. bandwidth, number of connections and reliability and construction of the communication transport segment with the determination of the optimal location of cross-country premises. The developed method makes it possible to plan the optimal structure of the 5G cellular network to optimize production processes, evaluate and reduce the total cost of building the network, while providing the necessary indicators of service quality of network nodes and its reliability.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43801701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance of basic arithmetic actions with complex numbers, which are presented in interval hyperbolic form","authors":"S. Gadetska, V. Dubnitskiy, Yuri Kushneruk, A. Khodyrev","doi":"10.20998/2522-9052.2022.1.17","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.17","url":null,"abstract":"The goal of the work. Development of methods for performing basic arithmetic operations with interval complex numbers, which are presented in hyperbolic form, their modulus and argument. Results. The paper considers the method of extending interval numbers defined in hyperbolic form (hyperbolic interval numbers) to the field of complex numbers. To do this, the real and imaginary part of a complex number is presented in the form of a hyperbolic interval number. The connections between the representation of interval numbers in the classical form, the CENTER-RADIUS system and the hyperbolic form are established. Methods of performing basic arithmetic operations with hyperbolic complex numbers are proposed, namely: addition, subtraction, multiplication and division. A method of raising the positive interval number of a complex interval number defined in a hyperbolic form to an integer positive degree is proposed. Methods for calculating the modulus and argument of a complex number defined in hyperbolic form are proposed. A method for determining the root of a degree from an interval complex number represented in hyperbolic form is proposed. Using the connections between hyperbolic and trigonometric functions, a form of representation of an interval number in trigonometric form is proposed. It is established that it is most expedient to perform addition and subtraction actions with complex interval numbers, which have a classical form or are defined in the CENTER-RADIUS system. The operations of multiplication, division and elevation to an integer power are most expedient to perform with complex interval numbers which are defined in hyperbolic form. The operation of calculating the root of a degree from an interval complex number, presented in hyperbolic form, is most expedient to perform with the combined use of the representation of the interval number in the system CENTER-RADIUS and in hyperbolic form.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49203463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"THE CONCEPT OF PERFORMING THE ADDITION OPERATION IN THE SYSTEM OF RESIDUAL CLASSES","authors":"V. Krasnobayev, S. Koshman, D. Kovalchuk","doi":"10.20998/2522-9052.2022.1.07","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.07","url":null,"abstract":"The subject of the article is the development of a method for implementing the arithmetic operation of adding the residuals of numbers, which are represented in the system of residual classes (RNS). This method is based on the use of positional binary adders. The purpose of the article is to improve the performance of computer systems (CS) and their components by introducing new ways of organizing calculations based on the use of RNS. Tasks: to analyze and identify the shortcomings of the existing number systems that are used in the construction of computer systems and components; explore possible ways to eliminate the identified deficiencies; explore the structure of binary positional adders, taking into account the scheme for adding two residues of numbers modulo RNS; to develop a method for constructing adders modulo RNS, which is based on the use of a set of binary single-digit positional adders. Research methods: methods of analysis and synthesis of computer systems, number theory, coding theory in RNS. The following results are obtained. The paper shows that one of the promising ways to improve the performance of the CS is the use of RNS. The mathematical basis of RNS is the Chinese remainder theorem, which states that an integer operation on one large modulus can be replaced by a set of operations on coprime small modules. This opens up broad prospects for optimizing calculations. On the one hand, it is possible to significantly simplify the performance of complex and cumbersome calculations, including on low-resource computing platforms. On the other hand, calculations for different modules can be performed in parallel, which increases the performance of the CS. Conclusions. The article considers the operation of adding two numbers. This operation is the basis for both traditional positional number systems and RNS, i.e. forms the computational basis of all existing CS components. A new method for calculating the sum of the residuals of numbers modulo an arbitrary is proposed, and examples are given that clearly demonstrate the effectiveness of the proposed method. This method can be used in various computer applications, including for improving computing performance, ensuring fault tolerance, etc.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49467461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RESEARCH AND ANALYSIS INDICATORS FIBER-OPTIC COMMUNICATION LINES USING SPECTRAL TECHNOLOGIES","authors":"B. Ibrahimov, E. Hashimov, A. Talibov, A. Hasanov","doi":"10.20998/2522-9052.2022.1.10","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.10","url":null,"abstract":"The fiber-optic communication lines and fiber-optic transmission systems using fiber-optic cable, receiving and transmitting optical modules based on WDM and DWDM (Wavelength Division Multiplexing & Dense WDM) technologies are studied. A method for calculating the transmission characteristics fiber-optic communication lines is proposed and relationships are obtained that establish an analytical relationship between the length regeneration section and the transmission rate. This paper discusses the study and analysis indicators fiber-optic communication lines using spectral WDM and DWDM technologies.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44674338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using the E-Netsim application for visual simulation of the movement of the autonomous robots","authors":"A. Protsenko, V. Ivanov","doi":"10.20998/2522-9052.2022.1.04","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.04","url":null,"abstract":"The main task of path search methods is to generate a possible path through a section of the environment while bypassing obstacles and minimizing the path length. Existing methods focus on the shortest geometric path to the target and do not take into account various parameters, such as energy consumption or the complexity of sections of the path. This article proposes a method for finding a path and determining its optimality using Petri nets. In addition to generating solutions based on several parameters, this method allows you to expand the visual feedback. When calculating the optimality of the model using the geometric distance from the entry point of the robot to the goal along a certain route and the cost of the abstract amount of energy to move each route. The object of research is Petri nets and their use to model the process of creating routes and finding a way for autonomous robots. The subject of research is the mathematical apparatus of Petri nets and the feasibility of their use in modeling the process of creating routes and finding a way for autonomous robots. The research aims to demonstrate the benefits of Petri nets for visual modeling of the process of finding the path and motion of autonomous robots. Conclusions. The presented technique is suitable for use in modeling the process of finding a way and provides comprehensive statistics for further processing and analysis.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68225625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"THE SOFTWARE SECURITY DECISION SUPPORT METHOD DEVELOPMENT","authors":"Zhang Liqiang, Nataliia Miroshnichenko","doi":"10.20998/2522-9052.2022.1.16","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.16","url":null,"abstract":"The actuality of the power to improve the accuracy of the results was determined in order to make a decision about the process of testing the software security. An analysis of the methods of support for making a decision was carried out. The necessity and feasibility of improving the accuracy of the results was determined in case of further software security inconsistencies in the minds of the fuzziness of input and intermediate data. With this method, on the basis of the mathematical apparatus of fuzzy logic, the method of support for making a decision about the security of software security has been developed. The main feature of this method is the synthesis of an improved method of generating the initial vibration in the process of starting a piece of neural string. Within the framework of the model, the next stages of follow-up are reached. For the mathematical formalization of the process of accepting the decision and designation of the input data, the model of forming the vector in the input data was developed. Depending on this model for shaping the input data, an anonymous sign of potential inconsistencies and undeclared possibilities of the PP is valid until the data of PVS-Studio Analysis Results. To improve the accuracy of the classification of data collected, the method of creating a piece of neural array has been improved, which is modified by the method of generating a sample, which is being developed. This generation method includes three equal generations: generation of the initial vibration, generation of the initial butt and generation of a specific value of the safety characteristic. This made it possible to increase the accuracy of classification and acceptance of the solution by 1.6 times for positive elements in the selection by 1.2 times for negative elements in the selection. To confirm the effectiveness of the development of the method of support for the decision on how to ensure software security, a ROC-analysis was carried out over the course of the above procedures. The results of the experiment confirmed the hypothesis about the efficiency of the divided method of support to make a decision about the security of PZ up to 1.2 times equal to the methods, which are based on the position of discriminant and cluster analysis.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43273872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"STUDY OF NOISE REDUCTION METHODS IN THE SOUND SEQUENCE WHEN SOLVING THE SPEECH-TO-TEXT PROBLEM","authors":"Olesia Barkovska, Vladyslav Kholiev, Vladyslav Lytvynenko","doi":"10.20998/2522-9052.2022.1.08","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.08","url":null,"abstract":"The subject of this research is noise reduction methods in the sound sequence as a part of the proposed speech-to-text (STT) module for converting a verbal lecture or a lesson into a written text form on digital educational platforms. The goal is to investigate the influence of noise reduction methods on the operation of the acoustic signal recognition system. 3 methods of noise reduction were considered for integration in the proposed acoustic artifact recognition system and for the researching: spectral subtraction method; fast Fourier transform; Wiener filter with software modeling of every method. The obtained results: after testing the system with integrated noise reduction modules in it, based on the fast Fourier transform, Wiener filter and spectral subtraction method, it was concluded that the module using the Wiener filter improves the identification results by 25%, which is the highest result. However, performance testing has shown that fast Fourier transform is the fastest method. The practical significance of the work is – the identifying acoustic events system was developed, different noise reduction methods were integrated and researched into the module for converting a verbal lecture or a lesson into a written text form in a proposed system with the aim of increasing of speed and accuracy.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42058916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling of forest fires based on the Bayesian forecast model and geoinformation technologies","authors":"O. Barabash, O. Bandurka","doi":"10.20998/2522-9052.2022.1.03","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.03","url":null,"abstract":"Today, a variety of information about forest ecosystems can be obtained using remote sensing methods. The use of space data for forest monitoring is cost-effective because it allows you to quickly obtain the objective information needed by foresters to solve practical problems. Satellite data provide wide coverage of forest lands, high accuracy of results, as well as high frequency of data obtained. Space images of the Ovruch district of the Zhytomyr region of Ukraine in the summer of 2020 were selected for the study. Determination of breed composition was carried out by the methods of controlled classification, namely the Bayesian classifier. It was found that 70 % of forests are pine, less aspen, hornbeam, birch, alder and ash tree species. According to statistics, during 2000-2020, 51.4 thousand hectares of forest plantations in Ukraine were damaged and destroyed by forest fires. Therefore, objective and timely information on the consequences of fires is needed to solve a wide range of applied problems of forestry. An important task in assessing the environmental and economic damage caused to forestry as a result of forest fires is to determine the area of damaged forests. The paper considers technologies for determining the area of the forest where the fire took place, using space images of the Landsat 8 satellite. The normalized NBR fire index before and after the fire and the DNBR index are used to identify areas burned by fire and impression levels. To predict forest fires, a mathematical model based on Bayes' theorem was created and a thematic map with fire hazard classes on a quarterly basis was created. To check the accuracy of the results of the created forecast model, the thematic map was combined with a layer of defined fire areas. This software product is quite flexible and versatile, it can be easily adapted for use not only to identify burned forest lands, but also for other areas.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45773124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"METROLOGICAL SUPPORT OF PULSE OXIMETERS","authors":"E. Tverytnykova, T. Drozdova, Yulianna A. Demidova, N. Kuzmenko","doi":"10.20998/2522-9052.2022.1.13","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.13","url":null,"abstract":"The experience of the International Medical Device Regulators Forum in the use of products for oxygen therapy based on the study of guidelines, international and European regulations on medical devices is considered. Emphasis is placed on issues related to the metrological support of pulse oximeters. The global situation with the pandemic increases the relevance of selected topics. Continuous monitoring of blood oxygen saturation is one of the most important elements in the diagnosis and treatment of COVID-19. Despite the fact that the use of pulse oximeters does not require special medical knowledge, calibration and special maintenance, it is still necessary to control their reliability and accuracy of measurement. The study of pulse oximeter MD300M in accordance with the requirements of DSTU 8893:2019 \"Metrology. Pulse oximeters. Calibration Method” 2020. Analysis of MD300M pulse oximeter calibration results revealed that this pulse oximeter was calibrated by the saturation and pulse measurement channel, as the maximum deviation of the measured saturation value from the pulse oximeter calibration measure does not exceed the pulse oximeter measurement documentation specified in the operating documentation. The discreteness of the MD300M pulse oximeter and the discreteness of the reference device MPPO-2, which are specified in the passports for the respective devices, have the greatest influence on the measurement uncertainty.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47875394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of higher harmonics source in mixed-load power supply systems","authors":"D. Gapon, Andrey Zuev, P. Kachanov, Boris Kubrik","doi":"10.20998/2522-9052.2022.1.09","DOIUrl":"https://doi.org/10.20998/2522-9052.2022.1.09","url":null,"abstract":"The article considers the possibility of determining the source of higher harmonics of currents and voltages in the electrical network in the directions of power of the respective components. The research purpose is evaluating the effectiveness of theoretical methods, computer modeling of a fragment of the electrical network and electrical load receivers operating in parallel. Different combinations of active, reactive and nonlinear loading are investigated. Larionov's scheme was used as a nonlinear load. According to the results of the study, conclusions were made about the effectiveness of the method used. Thus, in particular, in the case of parallel operation of nonlinear and mixed active-nonlinear load, the source of higher harmonics is determined incorrectly. Suggestions for ways to improve the algorithm are made.","PeriodicalId":34701,"journal":{"name":"Suchasni informatsiini sistemi","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47675240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}