Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2022-76-8-347-352
The article is devoted to solving the problem of increasing the yield of light oil products at the primary oil refining unit by the methods of mathematical and simulation modeling. An overview of the software packages for technological modeling used for petroleum refineries is given. An optimization criterion, that allows determining the maximum yield of light oil products is received, as well as restrictions on the process parameters are established. The adequacy assessment of the initial data dependence according to the Fisher criterion is given. A mathematical model of the petroleum distillation process for low-capacity installations is obtained. The model can be useful at optimizing the variable composition and consumption of raw materials (petroleum) according to the selection criterion for light oil products, taking into account seasonal requirements for the quality of petroleum products. The use of the proposed optimization criterion and the mathematical model on small-capacity oil distillation units improves the efficiency of process units. Keywords sectional model, petroleum product, quality indicators, optimization, boiling point, potential fraction content, selection
{"title":"Optimization of the oil rectification process by the selection criterion of the light petroleum products","authors":"","doi":"10.36652/0869-4931-2022-76-8-347-352","DOIUrl":"https://doi.org/10.36652/0869-4931-2022-76-8-347-352","url":null,"abstract":"The article is devoted to solving the problem of increasing the yield of light oil products at the primary oil refining unit by the methods of mathematical and simulation modeling. An overview of the software packages for technological modeling used for petroleum refineries is given. An optimization criterion, that allows determining the maximum yield of light oil products is received, as well as restrictions on the process parameters are established. The adequacy assessment of the initial data dependence according to the Fisher criterion is given. A mathematical model of the petroleum distillation process for low-capacity installations is obtained. The model can be useful at optimizing the variable composition and consumption of raw materials (petroleum) according to the selection criterion for light oil products, taking into account seasonal requirements for the quality of petroleum products. The use of the proposed optimization criterion and the mathematical model on small-capacity oil distillation units improves the efficiency of process units.\u0000\u0000Keywords\u0000sectional model, petroleum product, quality indicators, optimization, boiling point, potential fraction content, selection","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128344910","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}
Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2020-74-4-181-183
The subsystem of aircraft list restriction caused by a sharp deviation of the rudder to the maximum angle is considered. The test results on the engineering stand for the proposed subsystem obtained by modeling the spatial motion of a promising transport aircraft are introduced
{"title":"Modeling of an automatic stability system for a promising transport aircraft in a list channel","authors":"","doi":"10.36652/0869-4931-2020-74-4-181-183","DOIUrl":"https://doi.org/10.36652/0869-4931-2020-74-4-181-183","url":null,"abstract":"The subsystem of aircraft list restriction caused by a sharp deviation of the rudder to the maximum angle is considered. The test results on the engineering stand for the proposed subsystem obtained by modeling the spatial motion of a promising transport aircraft are introduced","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130618758","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}
Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2020-74-6-259-263
A genetic algorithm is proposed to us to prevent a local minimum defect when using the BP neural network learning algorithm. The genetic algorithm is first used to optimize the weight and threshold of the BP neural network, and then obtained values are used to optimize the BP neural network. Optimized network performance is estimated using simulation data. The results of numerical simulations show that the BP neural network optimized by the genetic algorithm can effectively eliminate a local minimum defect, which is easy to find in the original BP neural network, and has the advantages of fast convergence rate and high accuracy. Keywords BP neural network; genetic algorithm; local minimum defect; optimization
{"title":"Application of a genetic algorithm to optimize BP neural networks","authors":"","doi":"10.36652/0869-4931-2020-74-6-259-263","DOIUrl":"https://doi.org/10.36652/0869-4931-2020-74-6-259-263","url":null,"abstract":"A genetic algorithm is proposed to us to prevent a local minimum defect when using the BP neural network learning algorithm. The genetic algorithm is first used to optimize the weight and threshold of the BP neural network, and then obtained values are used to optimize the BP neural network. Optimized network performance is estimated using simulation data. The results of numerical simulations show that the BP neural network optimized by the genetic algorithm can effectively eliminate a local minimum defect, which is easy to find in the original BP neural network, and has the advantages of fast convergence rate and high accuracy.\u0000\u0000Keywords\u0000BP neural network; genetic algorithm; local minimum defect; optimization","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132492541","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}
Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2023-77-1-20-26
A mathematical model of the landing approach system for an unmanned aerial vehicle (UAV) on the example of a course-glide path system (СGS) is presented. The proposed mathematical model includes an information model of the ground and airborne segments operation for the approach system. The mathematical model of the ground segment implements the calculation of the CGS radio signals power level at a given point in space — the position of the UAV. The mathematical model of the onboard segment implements the determination of the UAV getting into the radio beacon coverage area and the calculation of the UAV deviation angles from the glide path line. The UAV dynamics model is considered as a set of pre-obtained trajectory points. The carried out computational experiments showed the fundamental adequacy of the mathematical model and its application possibility for checkout automatic control systems for aircraft-type UAVs during landing approach. Keywords UAV, landing approach system, course-glide path system, localizer, glide path radio beacon, marker beacon, mathematical model, UAV landing
{"title":"Mathematical model of the UAV landing approach system on the example of the course-glide path system","authors":"","doi":"10.36652/0869-4931-2023-77-1-20-26","DOIUrl":"https://doi.org/10.36652/0869-4931-2023-77-1-20-26","url":null,"abstract":"A mathematical model of the landing approach system for an unmanned aerial vehicle (UAV) on the example of a course-glide path system (СGS) is presented. The proposed mathematical model includes an information model of the ground and airborne segments operation for the approach system. The mathematical model of the ground segment implements the calculation of the CGS radio signals power level at a given point in space — the position of the UAV. The mathematical model of the onboard segment implements the determination of the UAV getting into the radio beacon coverage area and the calculation of the UAV deviation angles from the glide path line. The UAV dynamics model is considered as a set of pre-obtained trajectory points. The carried out computational experiments showed the fundamental adequacy of the mathematical model and its application possibility for checkout automatic control systems for aircraft-type UAVs during landing approach.\u0000\u0000Keywords\u0000UAV, landing approach system, course-glide path system, localizer, glide path radio beacon, marker beacon, mathematical model, UAV landing","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130511804","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}
Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2022-76-7-296-298
When compiling a mathematical model of any electromechanical device (EMD), problems arise associated with the solution of complex mathematical equations, when it is necessary to take into account many unknowns. These problems can be solved by introducing a number of assumptions. However, this leads to many errors in the calculations. The article proposes to compensate these errors with correction factors, which are determined empirically or based on the operating experience of the EMD. Keywords mathematical model, error, correction factor
{"title":"Correction factors for calculations of electromechanical devices","authors":"","doi":"10.36652/0869-4931-2022-76-7-296-298","DOIUrl":"https://doi.org/10.36652/0869-4931-2022-76-7-296-298","url":null,"abstract":"When compiling a mathematical model of any electromechanical device (EMD), problems arise associated with the solution of complex mathematical equations, when it is necessary to take into account many unknowns. These problems can be solved by introducing a number of assumptions. However, this leads to many errors in the calculations. The article proposes to compensate these errors with correction factors, which are determined empirically or based on the operating experience of the EMD.\u0000\u0000Keywords\u0000mathematical model, error, correction factor","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131732369","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}
Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2023-77-2-63-68
The article is devoted to the creation of a multifunctional machine for microsoldering and mounting of electrical components for the board. The problems of designing machine tools, existing analogues and prototypes are considered, as well as technologies and materials for fastening electrical elements and connecting them to each other are selected. Keywords machine tool manufacture, automation, analogues, soldering, electronics, electrical mounting, flux, solder, jumper
{"title":"Technologies and materials for the assembly and installation of electrical elements","authors":"","doi":"10.36652/0869-4931-2023-77-2-63-68","DOIUrl":"https://doi.org/10.36652/0869-4931-2023-77-2-63-68","url":null,"abstract":"The article is devoted to the creation of a multifunctional machine for microsoldering and mounting of electrical components for the board. The problems of designing machine tools, existing analogues and prototypes are considered, as well as technologies and materials for fastening electrical elements and connecting them to each other are selected.\u0000\u0000Keywords\u0000machine tool manufacture, automation, analogues, soldering, electronics, electrical mounting, flux, solder, jumper","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126390143","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}
Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2022-76-2-89-93
The development issues of a technological process digital twin in the form of an executable project in the TraceMode SCADA system are considered. Keywords digital twin, control object, regulation, automation, transfer function, education
{"title":"Use of digital twin technology of a technological control object in education","authors":"","doi":"10.36652/0869-4931-2022-76-2-89-93","DOIUrl":"https://doi.org/10.36652/0869-4931-2022-76-2-89-93","url":null,"abstract":"The development issues of a technological process digital twin in the form of an executable project in the TraceMode SCADA system are considered.\u0000\u0000Keywords\u0000digital twin, control object, regulation, automation, transfer function, education","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126439610","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}
Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2021-75-12-551-554
An algorithm for designing transceiver devices which makes it possible to automate the design process and obtain design documentation is described. Keywords design of transceiver devices; design algorithms
{"title":"Design automation of transceiver devices","authors":"","doi":"10.36652/0869-4931-2021-75-12-551-554","DOIUrl":"https://doi.org/10.36652/0869-4931-2021-75-12-551-554","url":null,"abstract":"An algorithm for designing transceiver devices which makes it possible to automate the design process and obtain design documentation is described.\u0000\u0000Keywords\u0000design of transceiver devices; design algorithms","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121617569","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}
Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2022-76-2-78-85
The factors that cause errors in navigation information during the operation of satellite navigation systems are considered. The errors due to multi-beam interference are investigated. Methods for errors compensating of a satellite navigation system, which make it possible to compensate the influence of disturbing factors, in particular, errors caused by radio signals reflected from obstacles, are presented. It is proposed to build models of reflected signals by means of evolutionary algorithms. In the process of the satellite navigation system functioning, a systematic component model of the reflected signal with parametric identification is used. Keywords satellite navigation system, multiple-beam interference, error compensation, algorithms for building models, systematic component of the error, parametric identification
{"title":"Compensation method of the satellite navigation system reflected signals","authors":"","doi":"10.36652/0869-4931-2022-76-2-78-85","DOIUrl":"https://doi.org/10.36652/0869-4931-2022-76-2-78-85","url":null,"abstract":"The factors that cause errors in navigation information during the operation of satellite navigation systems are considered. The errors due to multi-beam interference are investigated. Methods for errors compensating of a satellite navigation system, which make it possible to compensate the influence of disturbing factors, in particular, errors caused by radio signals reflected from obstacles, are presented. It is proposed to build models of reflected signals by means of evolutionary algorithms. In the process of the satellite navigation system functioning, a systematic component model of the reflected signal with parametric identification is used.\u0000\u0000Keywords\u0000satellite navigation system, multiple-beam interference, error compensation, algorithms for building models, systematic component of the error, parametric identification","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114237076","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}
Pub Date : 1900-01-01DOI: 10.36652/0869-4931-2021-75-3-135-137
New formulations of algebraic criteria for controllability and observability of a linear dynamical system with multiple inputs and outputs (MIMO-systems) are given, the corresponding theorems are formulated. The criteria are based on algebraic relations between linear combinations of the control matrix columns and own vectors of the free dynamics matrix. Keywords algebraic criterion; controllability; observability; linear MIMO-system; own value; own vector; Krylov vector and matrix; kernel; cokernel
{"title":"New formulations of algebraic criteria for controllability and observability of a linear MIMO-system","authors":"","doi":"10.36652/0869-4931-2021-75-3-135-137","DOIUrl":"https://doi.org/10.36652/0869-4931-2021-75-3-135-137","url":null,"abstract":"New formulations of algebraic criteria for controllability and observability of a linear dynamical system with multiple inputs and outputs (MIMO-systems) are given, the corresponding theorems are formulated. The criteria are based on algebraic relations between linear combinations of the control matrix columns and own vectors of the free dynamics matrix.\u0000\u0000Keywords\u0000algebraic criterion; controllability; observability; linear MIMO-system; own value; own vector; Krylov vector and matrix; kernel; cokernel","PeriodicalId":309803,"journal":{"name":"Automation. Modern Techologies","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121091067","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}
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