Issues of high-quality and reliable water supply are closely related to automation and management of engineering systems for stormwater and wastewater treatment. Options for managing continuous technological processes formulate different goals. Different control algorithms correspond to different variants, and, consequently, different methods of algorithmic support systems and control system structures. The expediency of dividing the general task of sorption purification control into several subtasks of a smaller dimension is shown where the control system acquires a hierarchical structure: at the lower level, the task of separate adsorption tanks controlling is solved, at the upper level, the task of controlling the entire purification plant as a whole. The criterion of operational management is provided. The scheme of adaptive control of continuous sorption purification systems is given.

Keywords: stormwater and wastewater, automation and control, continuous operation systems, sorption purification, control algorithms, mathematical model, optimality criterion, autonomous and dispatcher modes, hierarchical control system

The article reveals the problem, that arises as a result of generalized training of specialists according to the International Electrotechnical Commission standard 61131-3. The standard regulates the languages in which software is developed for programmable logic controllers. Training according to the standard allows a specialist to work with any controllers developed by any manufacturers, the downside of which is an insufficiently in-depth studying of the additional potentials of controllers, that are typical for the models of the particular manufacturer. Further, we consider a number of specific special functions of the FBD language using the example of programmable relays LOGO! by Siemens, which are not typical for the other devices, that work in this language, then we observe the examples of using these functions in various technological processes. Also, we get to know the abilities to transfer the parameters betweenparts of the program by using so-called link and the features of the implementationof pulse-width modulation in LOGO! controllers.And finally,we comprehend methods of working with analog signals including analog calculations and the option of non-standard using of the minimum/maximum search function as a storage element.A lot of developers ignore similar functions, because they are not covered in the training courses. Using of special functions simplifies the development of programs and provides additional capabilities for the programmer.Therefore, the necessity of a deeper studying of the capabilities of a certain controller seems to be apparent.

Keywords: programmable logic controllers, functional block diagrams, specialist training, analog signal processing, rarely used functions

The article presents the experience of automating the process of secondary sludge preparation in autoclave aerated concrete technology. It is proposed to use a non-cut non-isotope density meter of domestic production as a recording sensor. The algorithm of the system operation and the scheme of the technological process fragment are presented.

Keywords: automation, control system, production process, autoclave aerated concrete, secondary sludge, algorithm, density meter, quality of the finished product, sludge pool, density

Liquid pumping processes which require flow variations over a wide range are often equipped with centrifugal pumps connected in parallel. In such pumping systems, speed control enables the required capacity to be achieved with different numbers of pump units running and the selected speed values. The information required for modeling such systems, such as wastewater treatment and various cooling and water supply tasks, can be scarce, and the lack of real-time monitoring of operating points often sets limitations for precise optimization of energy efficiency. Consequently, easily implementable control strategies that can be adopted with minimal system data are needed, requiring adaptive methods. A significant part of pumping stations operate in conditions when the flow rate and the required pressure vary widely, which can lead to a decrease in the efficiency of their management and, as a consequence, a decrease in energy efficiency. Therefore, it should be noted that the task of choosing the optimal strategy for controlling pumping units during their parallel operation is very relevant.

Keywords: pumping units, energy efficiency, modeling, rotation speed, speed control

The article presents the results of the development of research in the field of automated training of operators of technological processes (on the example of loading and unloading machines) on computer training complexes (CTC). A feature of the developed CTCs is an intelligent automated system (AS) for monitoring the formation of sensorimotor skills, based on mathematical models and algorithms for representing knowledge about the technological process, automated design of training courses for professional training of operators in a virtual production environment, and automatic assessment of the formation of skills. The use of CTC for training operators of loading and unloading machines based on an intelligent AS helps to improve the quality of the formation of professional skills for the effective and safe implementation of technological processes in various fields (for example, river and sea ports, construction, mining) based on the results of training courses.

Keywords: loading and unloading machines, technological process, computer training complex, professional skills, sensorimotor skills, intelligent automated systems

The tasks of preparing for the modernization of the automatic pressure control system with the transition from the use of a PD controller in favor of a PID controller and the introduction of a controlled electric fan drive in a boiler plant are being solved. A technique for constructing a fan model in the automatic control system for air supply to the boiler is given using the example of a VD-18 blower fan and a BKZ-160 boiler. The block diagram of the operation of the fan and pipeline is given. A mathematical model of the fan is shown, a calculation is made and a computer model is designed in MATLAB Simulink. The simulation results are presented, which prove the correctness of the obtained model. The presented model can serve as a basis for automating the air supply system in other boilers using blowers.

Keywords: automatic pressure control system, automatic control system, dynamic model, computer model, blower fan, boiler plant

The review is devoted to the integration of PLM systems into the 1C:ERP system. The article presents definitions of PLM and ERP systems. The analysis of the data presented in modern sources proves the effectiveness of the integration of systems for the exchange of design and technological data about the product and normative reference information with the production management system. Overview of the implementation of PLM and ERP systems in enterprises. Description of integration errors and possible solutions. The evaluation of the analyzed results from the standpoint of the efficiency of production process management confirms the feasibility of using integrated systems at the enterprise.

Keywords: enterprise resource planning, product lifecycle management, enterprise management, integration, product lifecycle

The main task in the development and integration of digital automation tools is to increase the efficiency of the enterprise. One of the most relevant areas of integra-tion of such solutions is port activity. The purpose of the current article is to ana-lyze the issues of improving the efficiency of port activities based on intelligent au-tomation tools. The author considers in more detail the solution of the presented problem based on the integration of neural video analytics solutions. The paper us-es theoretical research methods, as well as the results of foreign and domestic scien-tific research. The scientific significance of the work lies in the attempt to systema-tize knowledge about methods of increasing the efficiency of port activities based on intelligent automation tools.

Keywords: port activity, automation, neural video analytics, enterprise, artificial intelligence

The article presents a study of accidents on the roads involving children and persons under the age of majority. An analysis was made of the legal norms for the protection of the rights of the child on the roadway. In addition, an additional means of reducing accidents on the roads, as well as its location relative to the pedestrian, was identified.

Keywords: accident, traffic accident, child, children, incident, road, section, pedestrian

The article raises the issue of maintaining the stability of the power system, including maintaining the balance of electric power. The occurrence of power imbalance can be determined by a criterion such as frequency. The authors have proposed a method of maintaining frequency including maintaining power balance in the power system by changing voltage on electric energy consumers, a hypothesis has been set and a corresponding laboratory study has been carried out, as a result of which dependence of frequency change on voltage of some electric power receivers has been obtained. A device an automatic unloading regulation of voltage has been developed and described, which will make it possible to supplement the existing emergency control equipment.

Keywords: renewable energy sources, grid inverters, mode parameters, Clark conversions, Park conversions

This work is devoted to the research and development of an automated control system for the technological process of leading of long sleeves. Long sleeves are an important and promising direction for the development of industrial and metallurgical industries. Now there is a wide variety of designs and sizes of sleeves. However, there are four main methods of their manufacture: mandrel, half-mandrel, without mandrel and on flexible mandrels. The article presents an analysis of the advantages and disadvantages of each of them. Mastering and improving the technology of manufacturing sleeves on flexible mandrels is the main way to increase the volume and speed of sleeve production. The results of mathematical modeling of the automated system are presented. The simulation was performed using the ViSim software tool. The control object is a lead melting bath. The temperature of lead is accepted as an adjustable technological parameter. The method of passive experiment was used to build an automated control system.

Keywords: automated control system, technological process, long sleeve, lead, temperature, mathematical modeling, control object, transfer function, control parameters

The article presents the results of the calculation and analysis of the distribution of field strength in the area of the measuring ring of the capacitive transducer for various geometric dimensions of the electrodes. Also, the appropriate distance between the electrodes and their size in the primary converter system were determined to assess the quality of mixing natural and chemical fibers at the output of tape equipment.

Keywords: fiber mixing quality, electromagnetic field, capacitive estimation method, conformal transformations

The article describes the development of a virtual emulator of the polyvinyl chloride drying process. The development of the emulator is implemented using the Omegaland development environment. The characteristics and functional structure of the polyvinyl chloride drying process in a fluidized bed dryer are presented. Mathematical models of elements of simulated system are considered, algorithm of their operation is characterized. The steps of developing a virtual polyvinyl chloride drying simulator are described. The flowchart is assembled in the OmegaLand Visual Modeler modeling environment. The fluidized bed dryer module was developed in the integrated development environment of Microsoft Visual Studio in the C++ programming language. The developed dryer model was integrated into the Omegaland library. The developed dryer model was tested in the emulation mode of the polyvinyl chloride drying process.

Keywords: mathematical model, drying, polyvinyl chloride, Omegaland, emulator, virtual simulator, fluidized bed dryer

The results of the development of a software package are presented that allow training personnel to work in a district heating system to ensure a reliable process of energy transportation in heat networks. The developed simulator described in the article is a software package that includes a SCADA system and a Termas client for modeling and simulation operation of the district heating system. The simulator consists of a thermal-hydraulic mathematical model of the operating modes of the heating network, software and information support for setting up the operating modes of the simulator and assessing the actions of the personnel by the instructor based on the results of work on the simulator. The requirements for the functionality of the simulator are presented. The Demand Analysis application was used to collect data on energy consumption and outdoor temperature. The process of operation of the simulator in the simulation and modeling mode for the heat networks of the city of Yekaterinburg is presented. The developed software simulator makes it possible to simulate an accident, train personnel in the skills of safe equipment control in complex non-stationary modes. The software package allows you to reduce energy costs.

Keywords: training simulator, software, district heating, heating networks, SCADA system, Termis platform, model, temperature, accident

The article discusses one of the approaches to the management of the ore grinding circuit, in particular, the process of loading the ore mill. For maximum performance, the mill must be loaded 47-50%, there are several ways to measure the mill load level. In this paper, we consider one of the methods of measuring the level of loading of the mill, in order to control the loading of the mill. The article investigates the prospect of using an extreme controller in conjunction with the observer States in the implementation of the control circuits mill loading. The resulting control system produces load control based on the current drive power of the mill. The peculiarity of this control system is that it is able not only to control the mill, but also to recognize the overload and take measures to prevent an emergency. There is no need for additional subsystems and algorithms. In addition, two models of management systems were developed and their effectiveness was compared. The advantages of using the state observer with respect to the classical extreme regulator are indicated.

Keywords: ball mill, automating, mathematical model, control loop, observer state, extreme controller

The article presents the dependence of the change in the intensity of emission during the passage of an infrared flux through a two-component material, which allows for a fractional assessment of a mixture of natural and chemical fibers. On the basis of the obtained dependence on experimental data, a mathematical model has been constructed that makes it possible to quantify the distribution of dissimilar fibers in a mixture. The modelling results showed that after the second transition on the draw frame, the so-called "stretching" defect is observed, which characterizes the uneven distribution of fibers in the product cross section.

Keywords: emission intensity, infrared evaluation method, mixing of dissimilar fibers, fractional composition, measuring device

At present time, there are attempts to design and produce forest machines of highly-demanded classes in Russia. The paper evaluates the efficiency of forest machines under identical operating conditions. The analysis showed the possibility of using harvesters and forwarders of joint Belarusian and domestic production for logging works as an alternative to foreign forest machines. Evaluation of proposals revealed advanced Russian and Chinese models of forest machines. The research showed that in our country there are prerequisites for the development of forestry machine-building, while the main problem is the lack of production technologies for the manufacture of modern technological equipment and components. Under these conditions, the evolution of production on the national territory of forest machines and technological equipment without involving domestic or foreign capital and innovative technologies is a difficult task.

Keywords: domestic forest machine building, development prospects, forest machines, production

The article outlines the features of the developed algorithm for controlling autonomous industrial forest management facilities under real operating conditions under the forest canopy. A significant challenge faced by the developers in the presented algorithm was the practical absence of global navigation in the areas of use of potential autonomous industrial forest management objects. Thus the only alternative was local positioning algorithms, which of the existing ones were also unserviceable under real forest canopy conditions. The problem was exacerbated by the high requirements for positioning accuracy not so much for autonomous objects as for positioning accuracy relative to the object of work of the contact elements of technological equipment directly implementing the operations of the industrial timber harvesting process. The developed concept of local positioning has no analogues in the world, belongs to the algorithms of the latest generation, created by the authors on the basis of mathematical modelling of the operations of industrial forestry process and implemented in registered software complexes to manage the information flows that ensure the sustainable functioning of autonomous objects of industrial forestry in real operating conditions.

Keywords: algorithm, method, synthesis, positioning technology, control method, digital model, automation, digitalisation, modelling

This paper proposes an accurate and dynamic method for diagnosing of crop diseases. This method adopts Bayesian networks to represent the relationships among the symptoms and crop diseases. This method has one main difference from the existing diagnosis methods - it does not use all the symptoms in the diagnosis, but purposively selects a subset of symptoms which are the most relevant to diagnosis; the active symptom selection is based on the concept of a Markov blanket in a Bayesian network. Theoretical analysis demonstrates that the proposed method can significantly enhance the performance of crop disease diagnosis.

Keywords: plant disease recognition, mathematical model, Bayesian network, machine learning, Markov blanket

Cast iron occupies one of the most important places among structural materials and is widely used in the manufacture of critical automotive parts.The article examines the possibility of processing gray cast iron by surface plastic deformation (SPD) and the study of its hardening depth in order to control the stress-strain state (SSS) of the surfaces of parts. Modeling is carried out, calculations are close to the real situation, a three-dimensional finite element model is used. The data obtained were analyzed by the least squares method (LSM), graphs were plotted.Also, based on the data obtained, it was found that the relationship between the degree of plastic deformation, the diameter of the indenter and the depth of work hardening is an equation that describes the surface. The carried out researches and the received dependence allow to increase the accuracy of forecasting of results of processing of PPD cast iron.

Keywords: grey iron,plastic deformation, bilinear deformation diagram, indentation depth, spherical indenter

Electronics is the most capacious and rapidly developing industry in our country. Modern methods of designing electronic devices are unthinkable without the use of computer technology, in particular, specialized programs for computer analysis and modeling of circuit diagrams of the devices being developed. Intelligence is the key link in electronics at the present stage of its development. This is due to the emergence and widespread adoption of microcircuits such as microcontrollers. This aspect provides fundamentally new opportunities for solving a wide variety of tasks, including tasks of a strategic orientation that require prompt solutions. All this became possible primarily because devices based on a microcontroller require algorithmic and further software, which makes it possible to create intelligent systems and devices. One such device will be discussed in this article. The developed device is a system consisting directly of a control system, an actuating device, which is a decision-making device, a power unit and peripheral devices. The article explains the idea, the principle of operation of the developed device, the structural and schematic diagrams of the developed main blocks of the device, as well as their algorithmic support, which is based on the principle of intelligent control. The developed device is designed to automatically maintain the level of illumination at the level set by the operator in the premises of industrial enterprises.

Keywords: intelligent control, sensor unit, binary code, synchronization circuit, transistor switch, bus driver, optosimistor, control system, actuator, power unit

The article is devoted to the research and development of an automated control system for the technological process of obtaining E. coli. E. coli belongs to gram-negative rod-shaped bacteria of the Enterobacteriaceae family of facultative anaerobes. It is the most famous microbe in the world and has different types of strains. Commensal E.coli are harmless and often found in nature. Currently, great attention is paid to the use of modified E.coli for the production of recombinant proteins, amino acids. The results of mathematical modeling of the automated system are presented. The simulation was performed using SimInTech and MathCAD software tools. The object of management is the cultivation capacity. The temperature of the Escherichia coli is accepted as a regulated technological parameter, which is controlled by changing the degree of valve opening. The method of passive experiment was used to build an automated control system. The main parameters of the control object are obtained.

Keywords: automated control system, technological process, E. coli, mathematical modeling, control object, transfer function, control parameters

3D integration technologies based on highly integrated substrates and bare chips solve the problem of miniaturization of complex functional devices. However, increasing complexity and decreasing mass-size parameters of products lead to problems of effective heat distribution and dissipation from frameless microcircuits. The article considers features and problems of thermal analysis of 3D computing microsystem based on several modules with bare-metal chips, and also shows the importance of modeling the actual heat generation of programmable logic integrated circuits.

Keywords: microassembly, microsystem, chipless chip, FPGA, thermal analysis, CAD, finite element method, heat transfer simulation, printed circuit board, three-dimensional integration

To date, the issue of industrial development of the Northern territories of Russia is being actualize. The main task is the production of concrete works that require the use of special methods. The purpose of the current article is to justify the need to develop a software solution that allows you to automate the calculation of the pa-rameters of the heating wire during winter concreting. The author raises the ques-tion of the relevance of using the method of winter concreting on the example of heating wires. The paper analyzes aspects of the design of this program. The scien-tific significance of the article lies in the possibility of using the presented materials as a basis for creating a real software solution. The predominant part of the article is devoted specifically to the issues of creating a solution for automating the calcu-lation of heating wire parameters during winter concreting.

Keywords: construction, program, automation, heating wire, winter concreting, the Far North

Abstract: This article discusses the prospects and problems of the development of digital technologies in the construction industry of the Russian Federation. The work presents the main legislative acts and federal projects aimed at the digitalization of construction in the country, the features of the introduction of digital technologies at all stages of the life cycle of capital construction projects, including: building information modeling (BIM), their digital twins (Digital Twin), the Internet of things ( IoT), with the help of which a single information space is created that allows collecting, systematizing all the received data, on the basis of which management is carried out at various stages of the life cycle.

Keywords: digital transformation, construction, building life cycle, BIM technologies, Digital Twin