Process Control and Systems Commons^™

Algorithm For The Synthesis Of The Control System Of A Double Mass Elastic Dynamic Object, Isomiddin Khakimovich Siddikov, Gulchekhra Rakhimjonovna Alimova, Davronbek Abdalimovich Khalmatov

Chemical Technology, Control and Management

There are dealt with the creation of a control system for a dynamic object with an elastic property, described by a system of second-order differential equations, further transformed into two polynomial equations in matrix form in a paper. In order to solve the problem of synthesizing the control system, two matrix polynomials with unknown parameters were introduced into the system of equations, which is the transfer function of the controller, the order of which is two, giving the system the properties of astatism. To solve the delivered problem posed, the matrix polynomial equation was transformed into a matrix linear equation …

Preparation Of Meta-Nitrobenzoylhydrazone Ferrocenoylacetone And Synthesis On Its Basis, Zilola Abduraxmonovna Sulaymonova, Bako Bafayevich Umarov Doctor Chemical Science, Professor

Chemical Technology, Control and Management

β-diketone-ferrocenoylacetone was obtained by Claisen condensation. Meta-nitrobenzoylhydrazone of ferrocenoylacetone (H₂L) was synthesized by the interaction of meta-nitrobenzoic acid hydrazide with ferrocenoylacetone. On its basis, complexes with copper(II) and nickel(II) ions were synthesized. The obtained compounds were characterized by the methods of elemental analysis, IR-, ¹H NMR andelectronic spectroscopy. The research results showed that H₂L in solution exists in the form of a tautomeric mixture: hydrazone, α-hydroxyazine, and cyclic 5-hydroxypyrazoline forms. According to the results of IR and ¹H NMR spectra, the complexes were assigned a planar-square structure, and in them the doubly deprotonated …

Application Of Methods Of Intermittent Ventilation Of Industrial Premises Using A Digital Data Transmission System, Yuriy Shipulin, Abdullayev Temur, Jamolidin Usmanov, Shahnoza Ergasheva

Chemical Technology, Control and Management

The article is devoted to topical applied issues, the application of methods of intermittent ventilation of industrial buildings using a digital data transmission system. The requirements for the parameters of the environment are determined, which include: composition, purity, temperature, air humidity, the content of positive and negative ions, the presence of fields of various origins (thermal, optical, biological, gas, and electromagnetic). The authors of the article argue that some of the listed parameters can be supported by ventilation and air conditioning (SCA) systems.

It is shown that when the controlled parameters are limited to a multidimensional area, the SCA control …

Algorithms For Controlling The State Of Executive Mechanisms, Farkhod Kasimov, Mirkhalil Ismailov

Chemical Technology, Control and Management

When constructing automatic control systems, the main attention often is paid to determining the optimal parameters of system regulators than other elements that make up the system. The executive mechanisms also significantly affect the function quality of the control system. In this article, the actuators were considered as a sub-system within the control system and control algorithms with open and closed-loop communication relative to the actuators were investigated. To assess the real state of the actuators, and improved control structure with sensors installed on the moving parts has been developed. For this structure, an algorithm for evaluating and controlling the …

Artificial Neural Networks For Measuring The Moisture Of Bulk Materials, Erkin Uljaev, Shohrux Nurali O‘G‘Li Narzullayev

Chemical Technology, Control and Management

One of the urgent tasks of industrial production is improving the quality of verification of received, manufactured, and stored products, reducing energy consumption in the production of a final product. The solution to this problem is impossible without the creation of devices that control the quality indicators of materials within the limits of the permissible error. One of the most common indicators of the quality of bulk materials is moisture. In the national economy and industrial production, it is required to determine the moisture content of more than 500 different substances and materials. The paper shows the possibility of using …

Formalization Of The Procedure For Choosing The Optimality Criterion And Formulation The Problem Of Ammonium Nitrate Production Control, Husan Zakirovich Igamberdiev, Uktam Farkhodovich Mamirov

Chemical Technology, Control and Management

The article discusses the questions of formalization of the procedure for choosing an optimality criterion and setting the problem of controlling the production of ammonium nitrate. The analysis of the technical and economic features of the considered production is carried out. As a criterion for the efficient operation of ammonium nitrate production, such a technological indicator as specific technological costs for the main stages, determined by the interval of quasi-stationarity of the object, is used, i.e. the time of its stable work. To solve the control problem, it is proposed to use the decomposition of the control problem into a …

Models And Fuzzy Microclimate Control System In The Storage Of Archival Documents, Avaz Marakhimov Scd, Prof, Abdushukur Abdullaev

Chemical Technology, Control and Management

In this article, the main object of research is the creation of appropriate microclimatic conditions to ensure reliable and high-quality storage of archival documents, as well as automatic control of the optimal values of the main parameters of the external and internal environment that directly affect the quality of storage. To control the microclimate, three categories of models for automatic control of these parameters are considered separately in the archives: the “white box”, “black box” and “gray box " models. The results of the analysis of the advantages and disadvantages of the considered models are presented. The generalized structure …

Developing Algorithms For Automating The Processes Of Forming The Optimal Structural Composition Of Production - Technological Modules, Alisher Mamajanov, Sarvar Botir Ugli Nabiyev

Chemical Technology, Control and Management

In this research, we developed appropriate algorithms for the formation of the optimal structural composition of production - technological modules (PTM) based on the automation of the processes of determining and ensuring the functional-parametric compatibility (FPC) of their components. These algorithms are based on the developed mathematical models on the basis of the use of analytical methods for implementing the interconnection between the main components of the PTM.

A Study On Dynamic Characteristics Of A New Remote Transformer Current Converter Without Compensating Capacitor, Sulton Faizullaevich Amirov, Nargisa Kamilovna Babanazarova, Nurullo Rahmatullaevich Yuldashev

Chemical Technology, Control and Management

In this research paper, analytical equations of the transient characteristics of a new remote transformer current converter without a compensating capacitor have been obtained when a stepwise, linearly increasing, sinusoidal and sinusoidal with a damped amplitude of effects was applied to their input. It has been shown that the developed current converter can be represented in the structural schemes of monitoring and control systems in the form of a series-connected real differentiating link without statism and inertial (aperiodic) link of the first order, and in the case of neglecting active losses in the magnetic circuit and when the converter is …

Problem Solving Methods For Synthesis Of Physical Principles Of Mechatronic Module Operations In Intelligent Robotic Systems, Nazarov Khayriddin Nuritdinovich

Chemical Technology, Control and Management

The scientific paper investigates the methods for solving problems of synthesis of physical principles of operation of mechatronic modules of intelligent robotic systems are considered.

In addition, it deals with the specifics of the process of synthesis of the physical principles of the operation of mechatronic modules using predicate models, list models and information matrices of physical and technical effects.

It shows the interpretation of the components of the model of the system for the synthesis of the physical principles of operation of mechatronic modules of intelligent robotic systems and automatic control and the features of the synthesis algorithm for …

Issues In Functioning Efficiency Of Security Monitoring Systems In Infocommunication Systems, Majid Karimov Malikovich, Sevara Khamdamova Mirazizovna

Chemical Technology, Control and Management

The security monitoring system (SMS) receives information from the means of protection, detecting attacks, systems for monitoring the functioning of information communication systems (ICS) and performs adaptive security management of ICS, providing a flexible response of the security system to the actions of the intruder. In this case, the result of the functioning of the SMB are recommendations for modifying the ICS security system, in accordance with the specified restrictions, in order to minimize the possible damage from the implementation of threats. A complex of security systems is used in modern ICS. Typically, different systems are not linked and are …

Identification Of Key Persons In The Information Security Incident Management Process And Distribution Of Roles Between Them, Fayzullajon Bakhtiyorovich Botirov, Sharifjon Rakhimovich Gafurov, Azam Anvorovich Gafurov

Chemical Technology, Control and Management

This research paper is devoted to the process of information security incident management and the distribution of the roles of key persons in this process. The skills required for members of the information security incident response team are considered, positions and responsibilities are given - typical positions that exist in each organization, testing and improvement procedures are given, the role of the information security incident response team members and employee positions is shown. The quality of the group leader is reflected; responsible for personnel management, scoping and reporting on the state of the organization at a higher level of the …

Reviewing Technologies And Devices For Drying Grain And Oilseeds, Jalolitdin Pakhritdinovich Mukhitdinov, Elyorbek Xasanovich Safarov

Chemical Technology, Control and Management

The article analyzes the operation of the most commonly used dryers for drying sunflowers and other agricultural cereals. Based on the study of drying technology and methods, the advantages and disadvantages of dryers have been analyzed, the results of comparisons of their technical indicators have been presented in tabular form. In the form of a diagram, an analysis of foreign and domestic patent data obtained over the past 10 years for the considered drying devices was presented. The choice of the most suitable installation was carried out on the basis of the compiled analytical table. In order to improve the …

Results Of X-Ray Phase And Ir-Spectral Analysis Of Azosuperphosphates Obtained On The Basis Of Phosphorites Of Central Kizilkum, Elyor Atashev, Maksud Jabbievich Jumaniyazov, Sayfitdin Mukhitdinovich Tadjiev

Chemical Technology, Control and Management

This article is devoted to the use of ammonium sulfate in the production of nitrogen-phosphorus fertilizers, which are widely used in agriculture today. In the research work, the possibilities of obtaining azo superphosphate are described in detail by the use of intensive technology based on low-grade phospharites of the Central KyzylKum. X-ray and IR-spectroscopic analyzes of a new type of NP-complex fertilizers obtained using a solution of ammonium sulfate in sulfuric acid are described in detail. The X-ray analysis of the obtained sample on the X-ray diffraction pattern of the azo-superphosphate fertilizer revealed the appearance of peaks in the interplanar …

Enterprise Engineering And Intellectual Technologies For Lifecycle Management Of Industrial Production, Nodirbek Rustambekovich Yusupbekov, Valery Borisovich Tarasov, Shukhrat Manapovich Gulyamov, Fahritdin Raupovich Abdurasulov

Chemical Technology, Control and Management

The fundamental scientific problem of the development of the mathematical foundations of engineering for industrial enterprises and the development of mathematical methods of production management, as well as the creation of intelligent systems for coordinated management of the life cycles of products and production in the network of enterprises are discussed. The issues in demand in the development of a vast interdisciplinary field of enterprise engineering and the development of modern network enterprises and intelligent production using mathematical modeling methods are discussed.

A Study Of Hygrometer Based On The Method Of Intracavity Laser Absorption, Abdulaziz Muminovich Nazarov Prof, Mirkomil Mirhidoyat Ogli Xasanov

Chemical Technology, Control and Management

The article presents the results of experimental studies of a fiber-optic humidity sensor, the principle of operation of which is based on the method of intracavity laser absorption. A method of intracavity laser absorption is described, which makes it possible to dramatically increase the sensitivity of the fiber humidity sensor by switching to it. A schematic diagram of a fiber optical humidity sensor using a differential detection scheme and a design of an active ring laser fiber consisting of a diode pump laser, a fiber pump beam splitter, two directional couplers, a measuring ring laser, a ring comparison laser, two …

Application Of The Ultrasonic Generator In The Extractor And Determination Of Its Energy Consumption, Shaxnoza Abduvaxitovna Sultanova, Jasur Esirgapovich Safarov, Azamat Usenov, Doston Ishmuhammat Ogli Samandarov

Chemical Technology, Control and Management

An ultrasonic generator was used in the Soxhlet extractor. To evaluate the process, the solvent flow was examined. The influence of the flow time in the Soxhlet on the process was analyzed. The formula for the residence time of streaming particles in the apparatus is given. A standardized volume curve V was formed. The time required for the solvent to remain in the apparatus is important during the extraction process. The description of the structure of flows of mass metabolic processes also means that it allows you to determine the movement and distribution of substances in these flows. Therefore, we …

Main Stages Of Automated System Of Processes For Determining And Ensuring Functional And Parametric Compatibility Of Production And Technological Systems, Sarvar Botir Ugli Nabiyev

Chemical Technology, Control and Management

This article presents the main stages of the development of an automated system of processes for determining and ensuring functional and parametric compatibility (FPC) of components of production and technological systems (PTS), in particular production and technological modules (PTM) of machine-building production, respectively, based on the analysis and systematization of technological zones of loading of the main technological equipment (MTE) and the construction of coating surfaces, the main parameters of industrial robots and storage systems (SS), determination and mathematical formalization of coating surfaces and guiding planes of MTE loading zones, formation of types of analytical dependences of FPC PTM functions, …

Errors Of Universal Contactless Converters Of Monitoring And Control Systems From External Magnetic Fields, A.M Plakhtiev, Gayratjon Gaziev, Yahyojon Meliboyev, Odil Doniyorov

Chemical Technology, Control and Management

In communication and communication devices, power equipment, relay protection and automation terminals, in the electric power industry of "smart" cities and homes, in industry, in railway transport, microprocessor-based relay protection and automation devices, distributed generation installations, including renewable energy sources, and electricity storage, as well as "intelligent" automated information and measurement systems are beginning to be used. Contactless converters of direct and alternating currents of control and control systems are widely used in them. Their disadvantages are a narrow range of controlled currents, large dimensions and weight. Therefore, it is important to eliminate them. The paper discusses the general principles …

Development And Implementation Of Two-Dimensional Fault-Tolerant Programmable Logical Controllers, Azizbek Nodirbekovich Yusupbekov, Nodirjon Turgunboy Ugli Tulaganov, Khurshid Salim Ugli Turaev

Chemical Technology, Control and Management

It has been revealed that a significant part of industrial control systems designed for technological facilities with more than one input and one output and the most widespread are objects with two inputs and two outputs.The article describes the programming environment for fault-tolerant two-dimensional control systems using PID controller, which software is implemented in an environment for programmable logic controllers (PLC).An experimental testing system has been implemented and software settings and regulator settings have been considered. Real-time PID controllers and filters have been implemented. It has been implemented a variation of the control system software with object imitation.