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  • Using machine learning methods to convert a scan into elements of a digital information model

    • Abstract

    The article discusses machine learning methods, their application areas, limitations and application possibilities. Additionally highlighted achievements in deep learning, which allow obtaining accurate results with optimal time and effort. The promising architecture of neural networks of transformers is also described in detail. As an alternative approach, it is proposed to use a generative adversarial network in the process of converting a scan into elements of a digital information model.

    Keywords: scanning, point cloud, information model, construction, objects, representation, neural network, machine learning

  • Optimization of the automated control system for the technological process of dosing carbon graphite materials for the production of electrode products

    The main tasks in optimizing the automated control system for dosing and preparation of the electrode mass are considered. The tasks set to improve the accuracy of charge dosing, as well as to speed up the dosing time, are proposed to be performed using acoustic rapid analysis. The method is based on the decomposition of the acoustic signal generated by the interaction of the moving flow of the charge mixture and the charge line. The decomposition of the signal using fast Fourier transform into spectra and the allocation of sub-spectra responsible for fractional components will increase the accuracy of dosing.

    Keywords: automated control system, charge, electrode mass, acoustic signal, spectral analysis, discrete Fourier transform, fractional composition of the charge mixture

  • Adaptive signal type regulator for controlling a non-stationary electromechanical system

    A non-stationary system of automatic speed control of a DC motor with an adaptive controller is considered. Comparative simulation modeling in Simulink of the system with and without an adapter is performed. The results of the modeling confirm the stability of the adaptive system in a larger range of change of the non-stationary parameter compared to the conventional system. At the same time, the speed and quality of transient processes are maintained at the level recommended for such systems.

    Keywords: automatic control system, non-stationarity, adaptive controller, subordinate control system, electromechanical object, DC motor

  • Safety innovations: The role of automated systems in fire prevention

    The role of automation in fire protection systems of technological processes is investigated. We reviewed the evolution of these systems, evaluated modern advances in automation, and analyzed their impact on improving the effectiveness of fire protection. In addition, we drew attention to the advantages of such systems, their implementation in various industries and the prospects for further development. With the constant growth of safety requirements and the desire to reduce risks, automation of fire protection systems is becoming not just an innovation, but a necessity for the sustainable development of industrial facilities.

    Keywords: modern, safety, fire hazard, automation, system, insulation, fire fighting, implementation, firefighting, protection

  • Development of a basic method for the operation of an intelligent automatic control system for an automated warehouse

    The paper presents the concept of an intelligent superstructure designed to combine automated vertical storage systems, mobile robots and standard control systems for both warehouse and production processes into a single complex. The proposed mathematical model describes the key aspects of product placement, robot routing, and accounting for equipment throughput. Optimization algorithms allow you to create and quickly adjust storage and relocation plans based on dynamic changes (spikes in demand, disruptions, priority orders). The simulation results confirm that the implemented system helps to reduce time and resource costs, increases throughput and ensures higher adaptability of logistics operations.

    Keywords: logistics, warehouse optimization, automated vertical storage systems, mobile robots, collaborative robots, warehouse management system, production process management system, mathematical model, optimization algorithms, intelligent system

  • Prospects for the Development of Industrial Automation Systems in the Context of Industry 4.0

    production processes during the fourth industrial revolution according to the concept of Industry 4.0. The concept of Industry 4.0 provides for the digital transformation of production using modern automated production technologies and information technologies. Such transformation accelerates the pace of production and management integration of production and reduces the costs of servicing control systems and equipment. Automated production equipment of modern enterprises should be controlled using information and communication technologies. The basic technology that ensures the exchange of information between devices and facilitates decision-making on the network is the Internet of Things. Artificial intelligence, cyber-physical systems, service orientation, high-speed communication systems and remote access are technologies that allow organizing harmonious intelligent production. Thanks to this, production will have the maximum level of automation of processes and their full control, feedback between production links and product properties, reduced costs per unit of production and improved quality. Modern automation systems are analyzed and it is indicated that in order to create flexible intelligent production environments, it is necessary to use effective models of component-based industrial automation systems with high reliability. The ways to improve the efficiency of component-based systems based on modern technologies are presented: artificial intelligence, machine learning, high-speed wireless networks, forecasting systems, monitoring and data processing in real time. The creation of effective component-based industrial automation systems will reduce the time and cost per unit of production, improve its quality and reliability of production systems.

    Keywords: automation, industry 4.0, efficiency, digitalization, component-based systems

  • Application of Color Segmentation in the HSV Space for Automated Meat Quality Classification

    The relevance of accurately predicting fat content on the surface of meat products is driven by the need to ensure effective quality control in the food industry. This paper presents an efficient method for detecting and quantitatively assessing fat content on meat surfaces based on the use of color segmentation in the HSV color space. The method exploits differences in the color characteristics of fat and muscle tissues to effectively segment images of meat samples, calculate the percentage of fat, and analyze its spatial distribution. The simplicity and robustness of the algorithm make it a promising solution for real-time automated quality control systems, offering ease of use and high computational efficiency.

    Keywords: computer vision, color segmentation, HSV color space, image processing, OpenCV, Flask, quality control automation

  • Modelling and simulation of quadrocopter control using cascaded PID controller in Matlab

    The problem of modeling the dynamics and control of a quadrotor using a cascade control system based on a proportional‐integral‐derivative controller is considered. The main subject of the study is the development and simulation of a system that ensures the stable positioning of the quadrotor in the presence of external disturbances and limitations in the dynamic characteristics of the vehicle. The object of the research is the quadrotor as an unmanned aerial vehicle, while the subject is the cascade control system comprising an outer controller responsible for correcting position errors and an inner controller that maintains the stability of the vehicle’s orientation. The aim of the study is to create a mathematical model of the quadrotor’s dynamics and to implement a cascade control algorithm capable of converting position errors into control commands for adjusting the tilt angles. The work employs methods of mathematical modeling, discrete integration of the equations of motion, and cascade control algorithms implemented in MATLAB software. The simulation results demonstrate that the proposed control system significantly reduces the discrepancy between the current position of the vehicle and the specified target point, ensuring flight stability. However, residual errors have been identified, which are associated with the approximated models of motor dynamics and limitations on the maximum tilt angle, thereby necessitating further optimization of the control algorithms. The main conclusion of the study is that the developed cascade control system represents an effective solution for improving the positioning accuracy of the quadrotor and opens prospects for further research in the control of unmanned aerial vehicles

    Keywords: quadrocopter, flight dynamics, mathematical modelling, cascade control, position controller, orientation controller, control optimisation

  • Study of plasticity and density characteristics of three-component FeNiCu composite during rolling

    An experimental study of the ultimate deformations of a three-component composite of FeNiCu metal powders during rolling with different reductions is conducted, which allows us to estimate the parameters of the material's plasticity, and thereby exclude various manifestations of destruction (cracks, ruptures, delamination, etc.). Depending on the magnitude of the deformation and the proportional content of individual components, the relative density of the composite is determined. The results will be in demand in the development of technological processes for pressure treatment of composite materials, in particular, the production of powder rolled products of a given density

    Keywords: composite, pseudoalloy, pressure treatment, rolling, plasticity, compression, destruction, delamination, relative density of composite

  • Adaptive PID control with perturbation compensation for trajectory tracking in robotic arms

    The article considers the problem of dynamic control of a 3-connected manipulator designed for trajectory following in conditions of external dynamic disturbances. To ensure the stability of the system, an adaptive PID controller based on the methods of kinematics and dynamics of a multi-link system is proposed. The analytical conclusions of direct kinematics, the calculation of the Jacobian matrix, and the perturbation compensation algorithm are described in detail. The experimental part is presented in the form of MATLAB modeling, the results of which are illustrated by graphs of motion, error convergence, dependence of link angles and control moments, as well as comparative tables of system characteristics at various levels of disturbances.

    Keywords: robotics, manipulator, adaptive PID controller, dynamic control, direct kinematics, Jacobian matrix, perturbation compensation

  • Methods for solving the linear cutting problem with minimization of knives' changes

    In this article, an analysis of the main methods for solving the linear cutting problem (LCP) with the criterion of minimizing the number of knife rearrangements is presented. The linear cutting problem in its general form represents an optimization problem that involves placing given types of material (rolls) in such a way as to minimize waste and/or maximize the use of raw materials, taking into account constraints on the number of knives, the width of the master roll, and the required orders. This article discusses a specific case of the problem with an additional condition for minimizing knives' changes and the following approaches for its solution: the exhaustive search method, which ensures finding a global optimal solution but can be extremely inefficient for problems with a large number of orders, as well as random search based on genetic and evolutionary algorithms that model natural selection processes to find good solutions. Pseudocode is provided for various methods of solving the LCP. A comparison is made in terms of algorithmic complexity, controllability of execution time, and accuracy. The random search based on genetic and evolutionary algorithms proved to be more suited for solving the LCP with the minimization of waste and knife rearrangements.

    Keywords: paper production planning, linear cutting, exhaustive search, genetic algorithm, waste minimization, knife permutation minimization

  • Optical damage control of hoisting ropes of metallurgical process equipment

    Steel hoisting ropes play an important role in metallurgical equipment, ensuring reliability and efficiency of lifting operations. One of the key features of their operation is the high level of contamination typical of metallurgical operations. Metallurgical processes are often accompanied by dust, metal chips and other abrasive particles that can significantly degrade ropes, causing wear and corrosion. To maintain the efficient operation of equipment it is necessary to monitor the condition of hoisting ropes in real time, which makes the task of improving automatic systems for monitoring the condition of ropes urgent. The paper reviews the methods of optical control of defects in hoisting steel ropes, the advantages and limitations of different approaches are considered. The aim of the work is to justify the effectiveness of the authors' developed method of analyzing rope defect images using neural networks in relation to the method based on the discrete Fourier transform. It is revealed that one of the most promising in terms of technical and economic efficiency of inspection methods is the application of vision system with image processing based on convolutional neural network technology, which allows to effectively detect defects in complex and changing operating conditions, such as metallurgical and mining production, where the background of the image may be non-uniform, and the distance between the camera and the rope varies.

    Keywords: lifting ropes, vision systems, optical control methods, fast Fourier transform, hidden Markov models, convolutional neural networks

  • Automation of operation of traction substation equipment

    The development, implementation and continuous improvement of diagnostic systems for Russian Railways (RZD) infrastructure facilities are defined as conditions for ensuring reliable and safe operation. The current concept regulates the stages and directions of development of diagnostic systems for the period up to 2030, with a development perspective up to 2035. It is planned to create integrated, stationary and mobile monitoring and diagnostic systems.
    The most optimal, from the point of view of the effectiveness of the diagnostic system, is to provide the ability to monitor diagnostic parameters with a given accuracy, automatically, without disabling equipment, in real time. This approach significantly simplifies operational control procedures. There is no need to change the condition of the equipment and power supply circuits. The number of personnel involved in carrying out diagnostic procedures is decreasing, as well as the influence of the human factor on the results is decreasing. The article discusses ways to automate the isolation control of Russian Railways infrastructure facilities.

    Keywords: diagnostic system, infrastructure, operational control, automation

  • Automated Meat Quality Assessment System Based on the Integration of Computer Vision and Transfer Learning

    This paper addresses the problem of improving the accuracy and objectivity of meat quality assessment. An approach to automated product evaluation is presented, based on the integration of a computer vision system (CVS) and deep learning methods. A convolutional neural network VGG-16, pre-trained on the large-scale ImageNet dataset, was employed to effectively implement transfer learning. The processes of data preprocessing and the architecture of the applied neural network are described. The results of training and validation demonstrate high classification accuracy of meat samples by the criterion “fresh/spoiled.” The potential of the proposed approach for automating quality control in the meat industry and reducing the influence of subjective factors is emphasized.

    Keywords: computer vision, deep learning, convolutional neural network, transfer learning, meat quality assessment, process automation, image classification, automated quality control

  • Control of technological processes of paper production by web width using intelligent technologies

    Ensuring high quality indicators of paper products manufactured on modern wide-format paper machines requires the use of systems for precise control of the main parameters: weight of 1 m2, humidity and thickness. The technological complexity of this task is due to the need for simultaneous control of numerous actuators across the width of the paper web. The presented study demonstrates an innovative system for controlling the main parameters of paper quality in the transverse direction, built using neural network technologies. The developed solution ensures high accuracy of parameter control in comparison with traditional control methods, which is confirmed by the results of experimental testing in production conditions.

    Keywords: pulp and paper production, paper machine, web width control, neural controller, interconnected control, distributed parameter control object, actuator, control system, paper web

  • Mathematical Model for Software Configuration Management in Industrial Control Systems

    Modern automated process control systems include software complexes for monitoring, dispatching, data processing, and controlling industrial equipment. The correct operation of these systems depends on the predictable and stable deployment of software components, which requires a deterministic approach to configuration management. This paper proposes a mathematical model for software configuration management in APCS, based on difference equations of discrete systems. Numerical modeling was conducted in the Octave environment, confirming the correctness of the proposed model and allowing for the analysis of the impact of control parameters on process dynamics. The obtained results can be used to optimize strategies for automated deployment of software complexes in industrial systems.

    Keywords: automated control, software complexes, discrete systems, difference equations, stability, dispatching, monitoring

  • Development of a digital twin model of a transport facility based on a process approach

    The article offers examples of simulated processes for creating a digital twin, a monitoring process, and a cargo transportation process. A theory is proposed for calculating a mathematical model based on Petri nets. Models for placing an order and its delivery are proposed, as well as a model of information flows using the example of developing models for the processes of transporting perishable products in a refrigerated container.

    Keywords: Business process, modeling, BPMN, IDEF1, DFD, Petri nets, mathematical model, intelligent 3D model

  • Improving the reliability of the subsystem for monitoring and controlling steam pressure in the steam curtain of a tubular furnace of a diesel fuel hydrotreating technological unit

    The paper presents the results of calculating reliability indicators and analyzing the fault tolerance of the subsystem for monitoring and controlling steam pressure in the steam curtain of a tubular furnace of a diesel fuel hydrotreating technological unit. The effectiveness of reserving critical elements to improve functional safety is substantiated.

    Keywords: reliability, fault tolerance, steam curtain, tubular furnace, hydrotreating, diesel fuel, redundancy, functional safety

  • Development of application software for automated coloring of images in palettes of traditional folk crafts

    The article is devoted to the development of application software for automated colorization of images in palettes of traditional folk crafts. The process of identifying palettes of folk paintings, the algorithm for transferring color solutions to the author's images and the presentation of this algorithm in the code of a computer program in the Python language are considered. The scheme of interaction of the program with the user is explained. The options for the practical application of the created application software in the work of artists, when creating design projects, for preserving cultural heritage and passing it on to new generations are described. The results of the study demonstrate the effectiveness of the automated approach for coloring images, reducing time costs and simplifying the work of designers. The article may be of interest to specialists in the field of computer graphics, designers and researchers of digital technologies in the field of image processing.

    Keywords: application software, digital technologies, colorization, color palettes, traditional folk crafts, colorization algorithms, graphic design, python programming, image processing

  • Efficiency of anti-icing measures on railway power supply devices

    The majority of electrified railways, as well as the routes of external power supply overhead lines, automatic block lines and longitudinal power supply lines, are located in areas with a sharply continental climate, where climatic conditions contribute to the possibility of ice formation. The article examines the effectiveness of anti-icing measures on power supply devices of electrified railways. The results of calculation of the anti-icing scheme during preventive heating of the contact network taking into account its homogeneity by equalizing current are presented. The success of application of preventive heating for the studied section is analyzed.

    Keywords: AC traction network, ice control, ice melting, preventive heating, operating voltage, equivalent circuit, selection of parameters

  • Methods for solving the problem of slowing down the operating cycle of the controller when the program volume increases

    The article discusses options for solving the problem of slowing down the operating cycle of programmable logic controllers that occurs when implementing complex algorithms. For most modern programmable logic controllers, the operating cycle directly depends on the volume of the user program. The program is executed pseudo-parallel, so the complexity of the algorithm affects the slowdown of the cycle indirectly, through an increase in the code volume. The growth of the program leads to a slowdown in the controller's response to changes in the state of the inputs. In some cases, controller developers provide programmers with options that allow them to disrupt the natural order of the operating cycle, thereby reducing the response time. The advantages and disadvantages of such methods are discussed in detail in this article. As an alternative way to reduce the controller's response time, the possibility of transferring the execution of a part of the algorithm to the operator's touch panel is considered. Modern touch panels, in addition to their main task - implementing the human-machine interface, have many additional functions, including the ability to use macros. The main functionality of macros is given and the possibility of exchanging data between the controller and the panel is demonstrated. This feature is a prerequisite for delegating some of the functions of the panel controller. The limitations and risks that arise when using this approach are discussed in detail, and situations in which it is preferable to use this method are identified.

    Keywords: programmable logic controller, operator touch panel, controller operation cycle, distribution of computing resources, macros

  • Intelligent control system for indirect assessment of internal damage volume in fruit and vegetable products

    The paper presents an intelligent control system for the indirect assessment of fruit damage volume based on the use of a computer vision system and a convolutional neural network (CNN). An algorithm has been developed that analyzes the surface defect area to predict the volume of damaged pulp. The proposed approach includes stages of image acquisition, preprocessing, defect segmentation using a CNN, regression-based damage volume estimation, and decision-making based on fuzzy logic. A mathematical model is described that links the defect area to the damage volume, taking into account the internal spread of rot within the fruit. The presented system enables prompt and objective quality control of fruits, contributing to the optimization of sorting, storage, and processing operations in the food industry and the agro-industrial sector.

    Keywords: intelligent control system, technical vision, sorting automation, convolutional neural network, image segmentation, fruit damage assessment, fuzzy logic

  • Information support for remote monitoring and control of the main functions of the electrolysis plant

    The article provides an overview of existing technical solutions, considered from the point of view of two approaches: complete replacement of the electrolysis plant with a modern analog; replacement of only the measuring part of the system. Based on the results of a review of existing technical solutions, it was concluded that the purchase and replacement of an entire electrolysis plant or a software measuring part is economically unprofitable, and Berezovskaya GRES can implement its own SEU-20 plant management system using modern Russian-made automation software, but its own development will bring significant economic benefits. due to the lower cost compared to foreign counterparts. Для проектируемой системы управления технологическим процессом выбрано необходимое оборудование. Рассчитано время реакции системы при аварийной ситуации. Разработаны электрическая структурная и функциональная схемы автоматизации электролизной установки СЭУ-20. Разработан интерфейс АРМ оператора и произведено моделирование разработанной программы с отработкой различных ситуаций.

    Keywords: electrolysis plant, import substitution, remote control, remote control, PLC programming, APM operator

  • Technology of processing phosphogypsum using acoustic methods

    The article considers a promising technology for non-destructive testing of the dispersed composition of phosphogypsum based on acoustic analysis methods. An analysis of the capabilities of the spectral-timbre approach for assessing the fractional structure of bulk material has been conducted. A relationship between the acoustic response of a particle flow and its dispersibility has been established. The feasibility of integrating the method into technological processes for the processing of technogenic raw materials has been justified. The high efficiency of the proposed approach in automated lines within the construction industry has been demonstrated.

    Keywords: phosphogypsum, acoustic methods, spectral analysis, dispersity, Fourier analysis, building materials

  • Capacitive tilt angle sensor for automation of position measurement of optical and optoelectronic systems

    The paper considers the solution of an urgent scientific and technical problem of developing a tilt angle sensor designed for automated position measurement of optical and optoelectronic systems. The principle of operation of the tilt angle sensor or inclinometer is to measure the direction of acceleration of gravity in the coordinate system associated with the target object, which allows calculating the angles of deviation of the vertical axis of the object from the ideal position. Capacitive sensors measure the angle of inclination by monitoring changes in capacitance due to external influences and often have a fairly simple design. In this paper, we consider a sensor design that uses a metal ball moving in a dielectric tube with electrodes attached to it. To investigate the possibilities of optimizing the device, a mock-up was developed on which the change in capacitance was analyzed depending on the size of the ball, the diameter of the tube and the shape of the electrodes. An important goal of this study was to determine the optimal diameter of the ball inside the dielectric tube to obtain the most noticeable changes in capacitance. The best results were obtained using a metal ball with a diameter slightly smaller than that of a dielectric tube. To measure the capacitance the "capacity–frequency" conversion can be used, followed by measuring the latter using a microcontroller. The resulting capacitance values are very small, which leads to a significant impact of any connecting wires and requires reducing the distance between the primary converter and the signal processing circuit, which can be achieved using micromechanics and microelectromechanics technologies and integrating the entire sensor design into one miniature housing. At the same time, with a decrease in the size of the elements of the primary converter, the value of the detected capacitance will obviously decrease, which will significantly complicate its conversion into an electrical signal.

    Keywords: tilt angle, electronic sensor, inclinometer, position control, capacity change, primary converter, auto generator, miniaturization