Computer Science, Information Technology, Automation最新文献

{"title":"INVARIANT SYSTEM OF AUTOMATIC STABILIZATION OF LIQUID FLOW RATES WITH PRESSURE VARIATION IN THE PIPELINE","authors":"V. Kondratets, O. Serbul","doi":"10.31721/2414-9055.2019.5.1.45","DOIUrl":"https://doi.org/10.31721/2414-9055.2019.5.1.45","url":null,"abstract":"The aim of the work is the development of an invariant system of automatic stabilization of liquid flow rates with a relative error not exceeding ± 1,0%, during fluctuations in pressure in the supply main with simultaneous reduction of its dimensions and material consumption. The research methods used in the work are as follows: methods of the hydraulics theory; methods of the automatic control theory; methods of analysis; modelling methods; methods of the theory of errors, methods of probability theory and mathematical statistics. Academic novelty lies in the fact that for the first time an invariant system of automatic stabilization of liquid flow compensates the negative influence of pressure fluctuations in the main line and, thus, provides high accuracy of functioning, is realized. Practical significance of the performed studies is high, since the obtained results make it possible to stabilize the flow of water into the sand chute of a mechanical single-spiral classifier quite simply and with sufficient accuracy. It allows to stabilize the pulp discharge in a ball mill and significantly improve the efficiency of its operation. The invariant system of automatic stabilization of the liquid flow rate contains a vertical uniflow hydraulic converter, an input pipe and a cylindrical float, which serves as a regulator. The system provides a water flow of 24,3 m3/h with a relative error of ± 0,85%.","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124479485","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":"TO THE PROBLEM OF FORMALIZATION OF MANAGER PARAMETERS FOR THE DEVELOPMENT OF AUTOMATED CONTROL SYSTEM BY ENERGY FLOWS OF IRON ORE MINES","authors":"I. Sinchuk, V. Fedotov, O. Dozorenko","doi":"10.31721/2414-9055.2019.5.1.4","DOIUrl":"https://doi.org/10.31721/2414-9055.2019.5.1.4","url":null,"abstract":"Purpose: development of theoretical aspects for the formalization of control parameters of the target function of the algorithm functioning of the automated control system (ACS) of energy flows of iron ore mines. Methods: in this article, the method used for the main components, the method of «compression» of the outgoing information. Scientific novelty: the method of forming the target function as an input parameter for the operation of the algorithm of control of electric power flows of iron ore mines is developed. Practical significance: the tactics of the formation of input parameters for the operation of the scheme of the ACS of power flows is developed. Results: the article presents the aspects of theoretical justification for the creation of a method for optimal management of electric power flows of iron ore mines by introducing an automated power flow control system. It is noted that the expected level of electrical energy efficiency of iron ore raw materials (IORM) in the conditions of underground iron ore enterprises is achievable by introducing in their practice the work of the ACS general energy flows in general and the ACS in the electric power flows in particular. To develop the structure of the ACS it is necessary to have real control parameters and levels of influence on them of a complex of technological factors of enterprises. Existing theoretical methods do not allow obtaining the required quality of such factors. It has been proved that the amount of electricity consumed by modern iron ore enterprises has changed little over the years, but tariffs for consumed energy are constantly increasing. This leads to an increase in the cost of extraction of this type of minerals. According to the protocols of the contracts for payment for consumed electricity, generating companies set for consumers daily tariffs for the released electricity. The daily electricity tariffs are used as inputs for the target function to obtain formula-solutions for minimizing the price according to the existing daily tariffs and maximize the change in the electrical loads of energy consumers in the preferential periods of the day. In the scenario of the electric power industry of iron ore mines of the Kryvyi Rih iron ore basin, the possibility of applying theoretical justifications for modelling the modes of electric streams in the hours of the day with the subsequent inclusion in the algorithm of the functioning of the ACS power flows is shown. The methodology of further formalization of control parameters for the development of an ACS by energy flows of iron ore enterprises is proposed. This approach allows, by compaction of experimental data, and without introducing system-leading influential simplifications into the process of this process, to form input parameters for the development of an algorithm for the functioning of ACS by the energy flows of these types of enterprises.","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127255249","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":"AUTOMATED CONTROL SYSTEM FOR ALTERNATIVE ENERGY SUPPLY OF A MINING ENTERPRISE","authors":"V. Morkun, O. Savytskyi, S. Ruban","doi":"10.31721/2414-9055.2019.5.1.35","DOIUrl":"https://doi.org/10.31721/2414-9055.2019.5.1.35","url":null,"abstract":". The article discusses the possibility of using heat pumps for heat utilization of mine water and ventilation air.The use of a large number of pumps requires new approaches to their joint management.Very small number of works is devoted to the questions of supervisory control of heat pumps groups, which consist of heat pumps \"water - water\" and \"air - water\". The purpose of the work is to develop an automated control system for dispersed heat pumps according to the criterion of minimizing energy consumption. In the article the classical methods of parameters of the particular system analysis at one of the mines of KryvyiRih Basin and methods of the modern theory of automatic supervisory control of distributed systems were used. The processes visualization techniques considering a human perception and decision-making had also been applied when creating the human-machine interface of automated distributed system for utilization of low-temperature energy of mine water and ventilation air. Methods theoretical: analysis, generalization, systematization of legislative framework, Internet-sources in order to distinguish theoretical basis of research. Methods empirical: development of theoretical basics and simulation of the distributed system of automated control over thermal pumps in an underground mine. The scientific novelty of the research implies determination of basic principles of creating an efficient system of alternative power supply at underground iron ore mining enterprises by using thermal pumps. The practical significance of the research involves a feasibility study of the space-distributed structure of automated control over alternative power-supply sources.","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122498355","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":"EFFICIENCY OF THESAURUS OF FACTUAL COLLOCATIONS OF PROFESSIONAL ONTOLOGY OF LINGUISTIC CORPUS OF POWER SYSTEM ACCIDENTS","authors":"I. Kotov, V. Trón, O. Serdiuk, O. Pylypenko","doi":"10.31721/2414-9055.2019.5.1.24","DOIUrl":"https://doi.org/10.31721/2414-9055.2019.5.1.24","url":null,"abstract":"","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134165368","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":"SWITCHED RELUCTANCE MOTOR WIND GENERATOR SYSTEM","authors":"I. Kozakevych","doi":"10.31721/2414-9055.2019.5.1.63","DOIUrl":"https://doi.org/10.31721/2414-9055.2019.5.1.63","url":null,"abstract":"The work is devoted to the development of a control system for a wind generator with the use of a switched reluctance motor. The search for new structures for the construction of the power unit and control system of electromechanical systems of wind power complexes is an urgent task of today. The most common construction options for such systems include double-fed induction motors and permanent magnet synchronous generators. In the first case there is no possibility of full control of the flow of power transmitted to the network, and in the second case the main disadvantage is the high cost of such an electric machine, which is explained by the use of rare earth materials in its design. The use of a switched reluctance motor as a generator has significant differences compared to similar use of electric machines based on torque generation due to the Lorentz force. A mathematical model of the electromechanical system of a wind generator with a switched reluctance motor in the Matlab / Simulink environment was developed. It was shown by mathematical modeling that when changing the sign of load torque, the machine does not go into braking mode independently, as is the case with other electric machines. This creates considerable difficulties in the operation of such a system, since the transition to brake mode requires a change in control effects on the switched reluctance motor. Features of functioning of the switched reluctance motor in the mode of regenerative braking have been stated. The limits of change of control angles which allow to receive the maximum amount of the generated electric energy and reduction of pulsations of brake torque of the machine have been defined. The structure of the control system of a switched reluctance motor has been developed, which involves the use of a modified speed controller, which divides its output signal into a sign function, which is subsequently used to select the converter control angles, as well as the absolute value used in the operation of the modulation algorithm of the required current magnitude .","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131899836","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":"MODEL OF TRAFFIC ROUTING IN A HETEROGENEOUS DISTRIBUTED INFORMATION SYSTEM","authors":"A. Kupin, R. Ivchenko, B. Poddubny","doi":"10.31721/2414-9055.2019.5.1.14","DOIUrl":"https://doi.org/10.31721/2414-9055.2019.5.1.14","url":null,"abstract":". The article presents a mathematical model of finding the optimal route and its cost in the presence of various routing requirements in a heterogeneous information and communication network of an arbitrary unstable structure, allowing for max-imum efficient use of network resources, reducing the number of blockages and traffic delays. Theoretical researches were been confirmed by modeling traffic routing using the example of a fragment of a heterogeneous network. The purpose of the study: the search for optimal traffic routing algorithms. Re-search methods: analysis, mathematical modeling. Scientific novelty: the routing algorithms presented in the article for the first time. Practical value: the mathemat-ical model and algorithms may be used in real conditions of data traffic routing.","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116158093","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":"DISINTEGRATION OF ORE FLOCCULES BEFORE FLOATATION CONCENTRATION ON THE BASIS OF DYNAMIC EFFECTS OF CONTROLLED HIGH-ENERGY ULTRASOUND","authors":"V. Tron, V. O. Ravinskaia, PrJSC “Poltavskii Gok”","doi":"10.31721/2414-9055.2018.4.2.40","DOIUrl":"https://doi.org/10.31721/2414-9055.2018.4.2.40","url":null,"abstract":"","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125762503","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 OF NEURAL CONTROL SYSTEMS IN CONCENTRATION PROCESS AUTOMATION","authors":"M. Tykhanskyi, Ye.O. Fortuna","doi":"10.31721/2414-9055.2018.4.2.25","DOIUrl":"https://doi.org/10.31721/2414-9055.2018.4.2.25","url":null,"abstract":". Ball drum mill are widely used on concentrating complexes of iron ore on mining and processing plant. Largely thanks to the beneficial properties of neural networks that are common to different types of nonlinear dynamic objects and solved the problem of identification, analysis, synthesis and hardware implementation of complex process control systems in non-stationary terms and with incomplete and fuzzy information. The implementation of the majority part of considered existing industrial automated control systems are based on proportional, integrating and differential regulators or their combinations (P, PI, PID controllers).However, systems with PID controllers can’t always provide the necessary quality of controling, especially in terms of difficult technological processes with nonlinearity, nonstationarity, delay in time, random perturbations presence of fuzzy and incomplete information. For such technological processes can be attributed most part of mineral processing stages. Milling of iron ore is the preparatory process for the magnetic concentration of materials. The basic technological process of magnetic-concentration complexes is magnetic separation. For the main ways of preparing the ore on magnetic-concentration complexes can be attributed milling and classification of iron ore to controling particle size of ore, that incoming to the magnetic concentration. Considering the large number of components in the composition of the ore and it’s variable characteristics, it is necessary to control of milling processes to achieve optimal size of milling ore and the optimum fractional composition of raw materials that incoming to the magnetic separation. The purpose : Is to prove the possibility of using neurocybernetics approaches for controlling of technological process concentration technology in terms of mining and processing complexes. Methods : identifying patterns of increasing efficiency of technological process controlling through synthesis and implementation of optimal controlling in the operation of control systems based on identification and forecasting condition of controlled processes with controlling of major disturbances. Scientific and the traditional automated control systems based on regulators. Practical relevance: the main potential of fuzzy logic is in implementing the functions of supervisory control. Using fuzzy logic makes possible to fully automate the technological process and review the formed rules and their interpretation for further analysis. Results: review the researchers works allowed to organize and present the main technological units as a control objects. This made possible to define the direction of creating future neural control systems in concentration process automation.","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115527537","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":"MATHEMATICAL MODELING OF INTERACTION OF SPHERICAL MILL BODIES WITH ELEMENTARY AREAS OF MILL DRUM SURFACE","authors":"V. Kondratets, A. Matsui","doi":"10.31721/2414-9055.2018.4.2.4","DOIUrl":"https://doi.org/10.31721/2414-9055.2018.4.2.4","url":null,"abstract":": The purpose of the work is a mathematical modelling of interaction of spherical mill bodies with elementary areas of a mill drum surface for creation of foundations of control facilities of technological aggregate overload. Methods of the ball mill theory for obtaining efficient characteristics of fineness of ball load, provision of their invariability in the operation, determination of peculiarities of stratification of mill bodies by fineness along the drum and in separate areas of approximately equal fineness, modelling methods for determination of fineness characteristics of ball load, analysis methods for establishment of motion conditions of balls along an inclined heel, methods of the ball mill theory, probability theory and mathematical statistics, when grounding impact frequency of balls of identical size with elementary area on the mill drum internal surface, are used. Academic novelty consists in foremost grounding of probability to implement identification tool of ball mill overload with ore by energetic efficiency of material destruction directly into the technological apparatus drum. Practical significance of the conducted investigations is high, since the obtained results allow to develop tools of ball mill ore overload of new type. Thus, technological aggregates can be fully operational without fear of emergency mode. It is shown that one can select the best ball load composition and maintain it in service for separate technological ore type and its definite fineness. Along the drum, balls are located in separate areas by fineness, the smallest ones are near the charging nose. The smallest balls of almost identical size are situated in separate areas of approximately equal fineness due to segregation near the lining. This creates an external layer that moves during rotation of the drum and accomplishes a three-phase trajectory. Five impacts of a ball of 50 mm in diameter with elementary area of 30 mm in diameter occur for four minutes. One impact occurs, provided that its diameter is decreased by 15 mm. It allows to develop innovative means for identifying ball mill ore overload.","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122227509","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":"DIDACTIC COMPONENTS OF THE PROFESSIONAL INFORMATION AND EDUCATIONAL ENVIRONMENT","authors":"S. Zelinska","doi":"10.31721/2414-9055.2018.4.2.15","DOIUrl":"https://doi.org/10.31721/2414-9055.2018.4.2.15","url":null,"abstract":"","PeriodicalId":250795,"journal":{"name":"Computer Science, Information Technology, Automation","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122455272","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}