Vestnik of Samara State Technical University. Technical Sciences Series

Journal Vestnik of Samara State Technical University (Technical Sciences Series) has been published at SSTU since 1993 and now it is an academic periodical aimed at scientific research development, support of leading scientific schools and staff training.

The journal publishes original experimental and theoretical articles of leading national and foreign scientists on the most topical problems of system analysis, automation and control of technological processes, IT, Electrical Engineering, Instrumentation and Metrology, Energetics, Metallurgy and Material Science.

The journal's mission is to promote the development of technical sciences and technologies through the publication of high-quality scientific research and articles. We strive to create a platform for the exchange of knowledge and experience that unites scientists and engineers, fostering innovation and progress. The journal supports open access to publications to ensure maximum availability of knowledge for all interested parties.

The journal is aimed at a wide audience, including:

  • Scientists and researchers: specialists working in the field of technical sciences.
  • Students and graduate students: young scholars seeking relevant information for their academic and research projects.
  • Engineers: professionals working in various industries who want to stay informed about the latest advancements and technologies in their field.
  • Educators: those interested in using contemporary research to enhance curricula and educational processes.

Research headings:

  • Information Technology and Communications
  • Electronics, Photonics, Instrumentation and Communications
  • Energy and Electrical Engineering

The Journal is published with the publisher's funds. All publications in the journal are free of charge. All electronic publications are distributed for free.

The Journal’s issues appear 4 times annually.

The Journal is included in the List of Peer-reviewed Journals of Higher Attestation Commission, and the research results of a DSc or CSc thesis are recommended to be published in the journal.

The Journal is included in the Russian Index of Science Citation (RISC) database.

The Journal is registered with Roskomnadzor as a mass media source.

The Journal is edited in both print (ISSN: 1991-8542) and online (e-ISSN: 2712-8938) forms.

The journal content is licensed under a Creative Commons Attribution 4.0 License

Full-text access to articles is available on site at http://elibrary.ru

Current Issue

Vol 32, No 4 (2024)

Information Technology and Communications

Application of computer vision and image prepro-cessing technologies in decision support systems
Mishchenko I.I., Misnik A.E., Alexandrov A.V.
Abstract

The article focuses on the development of a decision support system based on computer vision technologies and image preprocessing methods. It presents a comparative analysis of algorithms used to enhance the quality of visual data and to automatically identify key objects in images. The study emphasizes various methods such as filtering, equalization, and image segmentation, which are designed to improve the accuracy of computer vision algorithms in detecting important structures. The research tested and evaluated several image preprocessing techniques, including adaptive and standard histogram equalization, median filtering, and gamma correction. The results demonstrate that applying image preprocessing significantly improves the quality of data analysis. The Shi-Tomasi algorithm showed the highest efficiency in object recognition, especially when used with equalization techniques, allowing for precise identification of structural landmarks. The paper highlights the critical role of preprocessing in boosting the performance of computer vision systems across various domains, such as industrial applications, quality control, safety, and autonomous systems. These systems enable the automation of image analysis while reducing the impact of human error in decision-making processes. A practical example of these technologies is the development of a system for diagnosing musculoskeletal injuries and pathologies based on X-ray images. The implementation of such systems in medical practice accelerates diagnostic processes and improves the accuracy of diagnoses, ultimately reducing the workload of specialists and enhancing the quality of healthcare services.

Vestnik of Samara State Technical University. Technical Sciences Series. 2024;32(4):6-26
pages 6-26 views
Structural modeling of expanded clay cooling technological process in a drum cooler as a control object
Nazarov M.A., Galitskov K.S.
Abstract

The technological process of expanded clay cooling in a drum cooler is considered as a control object with distributed parameters. Taking into account reasonable assumptions and simplifications, the dynamics of the process under consideration is described by a system of non-homogeneous differential equations in partial derivatives of the first order, the solution of which made it possible to obtain operators linking the control action and the main disturbances with the temperature of expanded clay in the drum cooler. The obtained operators of the mathematical model, which are transcendental transfer functions, are approximated by typical forms of transfer functions for the possibility of their further practical application in the synthesis of automation systems. A structural diagram of the mathematical model of the process of expanded clay cooling in a drum cooler as a control object is synthesized. Computational experiments are carried out to study the dynamic and static operating modes of the control object.

Vestnik of Samara State Technical University. Technical Sciences Series. 2024;32(4):27-41
pages 27-41 views
Diagnostic system for the expanded clay production line equipment during maintenance and repair operations
Chunikhina E.A., Fadeev A.S.
Abstract

The article discusses a method for monitoring the condition of electric drive equipment, which will allow you to monitor its operating mode in real time. During operation, it is proposed to take into account the operational characteristics of the electric drive. As part of the work, the design of the conveyor belt was analyzed in terms of its reliability. Based on the known dependencies, mathematical models have been developed that describe the operating time to failure of the elements, which helps to increase the adequacy of the assessment of the service life of the equipment when evaluating the factors of its operation. To carry out the research, a block diagram of the automatic control system for diagnosis and restoration of the electric drive was synthesized. This approach demonstrates progressive and modern ways to ensure the reliability of technological equipment, which, in turn, optimizes the operation of the maintenance and repair system based on the actual condition of the equipment. The proposed diagnostic system plays an important role in reducing downtime and reducing operating costs when using electric drives in enterprises. With its help, enterprises will be able to plan maintenance more efficiently and provide electric drive resources in the most efficient way, which will lead to an increase in overall productivity and reduce the risks associated with sudden failures.

Vestnik of Samara State Technical University. Technical Sciences Series. 2024;32(4):42-52
pages 42-52 views
Devised Technology for Wireless Power Transmission
Al-Rawi M.
Abstract

Wireless charging of gadgets is one of the most emerging technologies in the world today. The most common method currently used is wireless power transfer through inductive coupling. Wireless power transfer is one of the simplest and cost-effective ways of charging, as it eliminates the need for conventional copper cables and current-carrying wires. In this paper, a methodology and principle of operation are devised for wireless power transfer through inductive coupling, and a feasible design is modeled accordingly. The inductive coupling technique is chosen because it is currently the easiest method of wireless power transfer, offering high efficiency and the ability to transfer a large amount of energy. This paper presents the results of experiments conducted to verify the wireless power transfer functionality. Additionally, to demonstrate its versatility and range of applications, the transferred power is used to charge a battery with the aid of additional circuitry. We also study the effect of placing obstacles between the transmitter and receiver to determine its potential as an alternative in the medical industry, such as for charging pacemakers. This research focuses on the study of wireless power transfer for the purpose of transferring energy at maximum efficiency within a small range or in the near-field region.

Vestnik of Samara State Technical University. Technical Sciences Series. 2024;32(4):53-68
pages 53-68 views

Electronics, Photonics, Instrumentation and Communications

Correlation data processing for determining the averaged differential chromatogram in the case of multiple sample injections
Sayfulin M.Z.
Abstract

The relationship between the input and output signals of a chromatograph is demonstrated. The expediency of improving the signal-to-noise ratio and using correlation data processing for this purpose is noted. An algorithm for calculating a chromatogram averaged over multiple injections of a sample from a specific individual specimen is presented. This algorithm is then modified for the case of calculating a differential averaged chromatogram, which is required to determine the difference in the component composition of two different specimens. A Legendre pseudorandom sequence is used to generate the input signals. The alphabet of this sequence is 1 or 0: 1 indicates a sample injection, and 0 indicates the absence of a sample injection at a given time. In the case of analyzing two specimens, the input sequences controlling the injection of the first and second specimens are complementary: if the sample of the first specimen is not injected, the sample of the second specimen is injected, and vice versa. The algorithm for calculating the averaged chromatogram is reduced to regression analysis. An information matrix of the experimental design is introduced. The accuracy of estimation is characterized using the covariance matrix of estimates. The choice of the optimal input sequence for sample injection is based on the D-optimality condition (the condition for maximizing the determinant of the information matrix), which ensures the minimum generalized variance of all estimates of the ordinates of the averaged chromatogram. The results of a numerical simulation experiment are presented, proving the effectiveness of using the correlation data processing method for averaging chromatograms.

Vestnik of Samara State Technical University. Technical Sciences Series. 2024;32(4):69-81
pages 69-81 views
Development and testing of a flexible image capture system based on domestic radiation-hardened electronic components
Sukhachev K.I., Grigorev D.P., Dorofeev A.S., Artyushin A.A.
Abstract

The aim of the work is to create a universal flexible image capture system required for recording images of various wavelength ranges in space scientific equipment. The main problem of implementing such a system is the limited bandwidth of the channel for forming a full image frame. To solve this problem, the authors designed an algorithm based on the process of recording a frame with accumulation, that allowed to form a full image frame using several real frames with reduced number of pixels got with the matrix photodetector.

The result of the work is a system built on the principle of a tiered design, having small dimensions, high noise immunity, high reliability and resistance to external factors, as well as full support for the FMU (Flexible Microcontroller Unit) core. Russian radiation-resistant electronic components were used as materials. The main HDL (Hardware Description Language) modules were optimized to reduce the number of gates and to adapt for household FPGAs. Parameters comparison of the image capture module implementation on various FPGAs is given in this article. This system can be used both in space equipment (using radiation-resistant electronic components) and for household or educational use (implementing the system on household components). The system also has a number of program-controlled parameters that allow to configure the matrix system registers. For capturing and processing images was created software on a personal computer. The results of debugging the system and examples of test shots are given.

Vestnik of Samara State Technical University. Technical Sciences Series. 2024;32(4):82-95
pages 82-95 views

Energy and Electrical Engineering

Gas distribution station upgrade main gas pipelines
Gulina S.A., Shabanov K.Y., Sheludko L.P.
Abstract

This paper proposes integrating an energy gas turbine expander unit (EGTEU) and a proton exchange membrane (PEM) electrolysis unit into the standard technological scheme of a gas distribution station (GDS) for main gas pipelines (MGP). This solution represents an effective systematic approach to modernizing standard GDS, which not only increases their energy efficiency but also significantly reduces their environmental impact. A thermal scheme has been developed, and the operating principle of the new type of GDS is described. Based on thermodynamic analysis, the potential for generating additional electric power in the EGTEU to produce hydrogen in the PEM electrolysis unit has been evaluated.

By modernizing standard GDS, it is possible to achieve electric power generation with an efficiency of up to 60 %, which is sufficient to power ultra-large-scale hydrogen production facilities. This presents promising opportunities for producing methane-hydrogen mixtures at GDS as a prospective fuel for consumers, which can significantly improve environmental performance compared to traditional natural gas.

Vestnik of Samara State Technical University. Technical Sciences Series. 2024;32(4):96-107
pages 96-107 views
Mathematical model of electricity consumption at oil pumping stations
Makarichev Y.A., Nosikov N.A.
Abstract

One of the key tasks for improving the energy efficiency of oil pumping stations (OPS) in main oil pipelines is conducting a scientific and technical analysis of the electricity consumption structure across primary and auxiliary complexes and equipment systems. Based on the results of this analysis, a theoretical model of the electricity consumption structure should be developed, which is necessary for forecasting costs at existing and reconstructed OPS, taking into account changes in pumping technological regimes.

There are several challenges in creating such models based on industry regulations, as they cannot fully account for significant changes occurring in the industry due to the evolving geopolitical situation and related processes affecting the energy consumption structure of pipeline transport facilities.

The article presents the results of an analysis of electricity consumption using the example of a typical OPS of JSC "Transneft-Volga Region" for two characteristic periods: full and partial station load. Based on the analysis, data were obtained for a mathematical model linking electricity consumption with the main technological parameters of oil pumping.

Verification of the theoretical assumptions was carried out by comparing the simulation results with actual electricity consumption data at the station. The comparison showed good agreement between the calculated and instrumentally recorded parameters.

Vestnik of Samara State Technical University. Technical Sciences Series. 2024;32(4):108-119
pages 108-119 views