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- ДокументOVERVIEW OF POPULAR APPROACHES IN CREATING CLIENT-SERVER APPLICATIONS BASED ON SCIENTOMETRICS ONAFTS’ PLATFORM(2018) D. Salskyi, A. Kozhukhar, O. Olshevska, N. PovarovaMost of the currently developed systems are based on the client-server architecture. This architecture is usedeverywhere, from mobile-native development to Web applications.However implementing an application based on this architectural solution requires quite a lot of effort from the softwaredeveloper, and therefore, in order to simplify and speed up the development, certain standard solutions and approachesappeared. This article will discuss the most popular technologies used in the development of Web applications in the context ofenterprise development.Also in this article will be mentioned the project, built on the architecture of "client-server" - ScienceToMetrics.The main theme of this project is the study of science-metric indicators for the structural divisions of the faculty of theOdessa National Academy of Food Technologies. In fact, it is a portal for viewing and editing information on employees, inthe future this portal may be extended to subprojects.In this project, the main idea of this architecture was embodied: decomposition of the application into atomic parts inorder to distribute it to several hardware units of capacity to improve performance. The client is an independent application,which at the same time receives information from an external API-interface through REST-requests. In turn, the backendprovides this API with certain security restrictions on the content provided. The backend for this architecture provides a layerfor the content of the data users, whether it's a database (NoSQL, SQL) or an integration API with external aggregationsystems. To ensure the necessary level of security, JWT (Javascript Web Token) authorization is used, which allows you not tocreate an explicit session between the client and the backend, but allows you to communicate through a token that stores allthe necessary meta-information for this user.
- ДокументINCREASING OF ECOLOGICAL EFFICIENCY OF WORN EQUIPMENT BY PARTIAL UPDATES. ANALYTICAL AND CONTROL ASPECT(2018) S. VoinovaThe current state of worn industrial equipment and the resulting low performance indicators of its functioning, in particular, low environmental friendliness, are considered. It is shown that the normalization of the complex situation that has developed in production is an acute problem, the solution of which should begin with the implementation of a program for the partial renewal of worn equipment. It is pointed out that there is a high potential for improving the technological, including ecological, efficiency of functioning of the upgraded equipment. It is pointed out that the partial renewal is highly efficient, because of the small specific investments in it. The significant influence of the quality of control of the setting and implementation of the renewal program on its effectiveness was noted. It is shown that the process of renewal of worn-out equipment, ultimately, has an environmental focus, increases the environmental friendliness of the updated technical facility.
- ДокументСПЕКТРАЛЬНЫЕ ПЛОТНОСТИ РЕГУЛИРУЕМЫХ ПЕРЕМЕННЫХ ТИПОВЫХ САР И ИХ АППРОКСИМАЦИЯ МАЛОПАРАМЕТРОВЫМИ МОДЕЛЯМИ(2018) В. А. Хобин, С. И. ЛагернаяTwo groups of the mathematical models, which describe changes in the regulated variables of closed automatic control systems as stochastic processes, are considered in the article. The first group is the informative models, obtained on the basis of analytical transformations that represent in the model of the process spectral density all the parameters of the object, regulator and perturbation effects models. The second group is well reflecting the nature of the spectral density formal models with a minimum number of parameters. This makes it possible to identify them in the real time, during the regular operation of the automatic control system. Comparison of models, including computer experiments based on simulation show the potential promise of their application for identifying the parameters of control object models in real time and without opening the control loop of automatic control systems. In the article the mathematical description of the automatic control system is considered taking into account the features of the technological type control objects, such as the presence of delay in the control channels, susceptibility to uncontrolled disturbances (intensive coordinate disturbances and parametric, low-frequency disturbances). A detailed considered the procedure for obtaining a mathematical expression for the informative models of the controlled variable spectral density for test typical variants of various system properties and perturbations combinations. The illustrations of the controlled variable of automatic control systems spectral density features are presented for various types of systems. There are also presented the possibility of replacing the informative controlled variable spectral density models with formal ones.
- ДокументРАЗРАБОТКА АЛГОРИТМА УПРАВЛЕНИЯ СИСТЕМОЙ ОТОПЛЕНИЯ И ГОРЯЧЕГО ВОДОСНАБЖЕНИЯ С ИСПОЛЬЗОВАНИЕМ ВОЗОБНОВЛЯЕМЫХ ИСТОЧНИКОВ ЭНЕРГИИ(2018) А. А. Процишен, Е. О. УлицкаяThe study analyzed the heating system and hot water supply with using renewable energy sources. To design an automatic control system for heating and hot water supply, which includes a solar collector, a heat pump and a centralized heating source, the following tasks were set: - study of scientific literature on the operation of renewable energy sources; - design of a structural diagram of the automation section; - design of an algorithm for controlling the heating system and hot water supply. The relevance of designing a control system for an object with a variable structure is shown. As an automation object, the system of heat supply and hot water supply with the use of renewable energy sources is considered. The possibility of sharing a heat pump, solar collectors and a centralized source of thermal energy for heating and hot water supply was explored. The technological scheme, the automation scheme, the control algorithm, the software of the complex are designed. The proposed algorithm for controlling the heating system and hot water supply realizes the cascading operation of equipment with the priority of switching on renewable sources of thermal energy to solve the problem of reducing energy consumption. The software of the developed control system and simulation of the heating and hot water supply system was implemented in the programming environment of the controller ОВЕН ПЛК160. For technical implementation, modern automatic control system devices and renewable sources of thermal energy have been selected. The management of automation tools, data collection and visualization is carried out with the help of SCADA-system WebHMI, operating in the real-time operating system. The obtained results of simulation are confirmed by the introduction and successful operation of the designed automatic control system at the municipal enterprise of the town of Yuzhniy. The joint work of renewable sources of thermal energy and boiler equipment under the management of the developed management system has proved its energy efficiency both during and outside the heating season, and it makes it possible to achieve 30% savings on heating and hot water.
- ДокументРОЗРОБКА ТА ДОСЛІДЖЕННЯ МУЛЬТИАГЕНТНОЇ СИСТЕМИ ДЛЯ ОХОРОНИ ОБ’ЄКТА(2018) П. М. Тишин, А. В. Гончаров, К. О. КуширецьThe article describes a multi-agent system based on the OWL ontology, taking into account the FIPA standards for the object security system. The given data on the work of intellectual agents and communication between them, as well as proposals for solving the tasks assigned. The proposed concept allows to significantly reduce the amount of electricity consumed during the operation of the object tracking system at a certain perimeter for the purpose of object protection. The range of tasks to be solved is not limited only to the implementation of the multi-agent system, among other things, such algorithms as constructing the proposed route of the object's movement, selecting a camera for tracking the object, diagnosing the system for errors are realized. Due to the peculiarities of the interaction of intelligent agents, this system is subject to simple expansion in the event of an increase in the surveillance area or an increase in the number of sensors in a certain territory. Structurally, the security system consists of a control center with a control system, where an operator sits observing the perimeter around the protected object; a set of microcomputers monitoring a certain sector of the protected area using sensors (main and auxiliary); two rotary cameras providing a visual inspection of the surroundings of the facility. An effective communication algorithm and a set of rules for agents allows you to capture the maximum number of objects using the shared resources of agents of two cameras. To prevent the failure of the elements of the security system, a monitoring system is provided, which in turn is controlled by an intelligent agent that interacts with the sensor agents and the decision support agent. In the future, the results of the study can be used to improve the protection of objects.
- ДокументОСОБЛИВОСТІ НАЛАШТУВАННЯ CFD-ПРОГРАМ ДЛЯ ПІДВИЩЕННЯ ЕФЕКТИВНОСТІ МОДЕЛЮВАННЯ ВИТРАТОМІРІВ(2018) Ф. Д. Матіко, В. І. Роман, О. Я. МаснякIn this paper, the authors conducted study of a number of parameters configuring the CFD-program Flow Simulations of the CAD SolidWorks for increasing the efficiency of modelling of ultrasonic flowmeters and orifice flowmeters. According to the results of the work, the authors proposed criterion for the accuracy of mass flow reproduction by means of CFD simulation and the ranges of CFD-program Flow Simulations parameters setup of the CAD SolidWorks: the optimal type of boundary conditions at the inlet and outlet of the three-dimensional layout of the measuring section of the pipeline with a flow meter of a certain type is selected; location of the inlet section of the flowmeter; minimum-sufficient value of the level of fragmentation of the basic simulation grid; the distance between the creator modified grid of a three-dimensional layout. The recommendations suggested by the authors provide an opportunity to provide a reproduction of mass flow during the modelling of gas-dynamic phenomena in the considered flow meters with an error of not more than 1%, with the minimum possible duration of the model's solution. This allows you to improve the efficiency of simulations of flowmeters using the CFD-program Flow Simulations of the CAD SolidWorks. The results of the work are especially relevant when using computational fluid dynamics for conducting time-limited training courses for students of technical specialties, in particular in the field of automation and computer-integrated technologies. The recommendations given by the authors of the work on the software settings of CFD-program Flow Simulations of the CAD SolidWorks can be interpreted for both the considered and other CFD-programs that are used to solve scientific applications of ultrasonic flowmeters and orifice flowmeters.
- ДокументFUZZY-КОНТРОЛЕР ПІДТРИМАННЯ МІКРОКЛІМАТУ В ПРИМІЩЕННІ ЗА ЗНАЧЕННЯМИ ІНДЕКСУ ДИСКОМФОРТУ(2018) П. В. Новіков, О. В. Степанець, Р. П. СаковFor microclimate control systems is proposed a control algorithm based on maintaining the desired discomfort index using a fuzzy logic controller. To assess the influence of the environment on humans, it is necessary to determine not only the quantitative value of individual microclimate parameters, but also the result of their overall impact on the human body. The existing complex methods of microclimate control are investigated. An approach to determine the index of discomfort has been analyzed. The values of the discomfort index are divided into ranges, depending on the average comfort sensations in the room for a person. The fundamentals of the theory of fuzzy sets are considered. The fuzzy logic controller is synthesized. A database of rules has been developed based on calculated values of the discomfort index. The intelligent system of automatic maintenance of comfortable microclimate conditions in the room is designed. Based on the calculated values of the discomfort index for all possible variants of the temperature values of dry and wet thermometers, a rule base for the fuzzy controller is built. The computer simulation of the obtained microclimate control system in the room is carried out based on the transfer functions of dry and wet thermometers. The results of mathematical modeling showed the effectiveness of using the proposed control algorithm. The control effect is made after processing the aggregated information directly from two sensors, thereby reducing the number of unnecessary inclusions for small fluctuations of each individual parameter. According to the results of modeling it can be noted compliance with the requirements of the received control system to maintain the desired level of discomfort index in the room, the minimum number of actuator inclusions, no overshoot and energy savings.
- ДокументРАЗРАБОТКА СОВРЕМЕННОГО ЧЕЛОВЕКОМАШИННОГО ИНТЕРФЕЙСА В АСУТП НА ОСНОВЕ МЕЖДУНАРОДНЫХ СТАНДАРТОВ(2018) А. Ф. Арабаджи, А. А. Стопакевич, А. А. СтопакевичThe relevance of the development of industrial human-machine interfaces is shown, since 35-58% of errors of process operators are associated with their incorrect organization. The development of a HMI for the associated petroleum gas processing technology was carried out using the recommendations of the ANSI/ISA-101.01-2015 standard and pilot studies data. The criteria for the effectiveness of HMI are selected - the ability of the interface to minimize the impact of such design problems as the degree of automation, support for cognitive activity, support for large amounts of data, support for secondary activity and navigation, and virtualization of reality when the HMI screens are used more conveniently for solving the tasks. A problem-oriented analysis of the technological process was carried out and tasks that should be solved with the help of the operator's interface were singled out. To fulfill these tasks, HMI screens have been developed that meet the basic criteria of situational awareness.
- ДокументСИСТЕМА АВТОМАТИЧЕСКОГО УПРАВЛЕНИЯ БЕСПИЛОТНОГО ЛЕТАТЕЛЬНОГО АППАРАТА(2018) К. О. Габуев, В. О. Гонгало, Н. А. Кучеренко, А. И. ШипкоThe article deals with the use of unmanned aerial vehicles as in industry in general and as in individual branches. The operation of unmanned aerial vehicles in the agricultural sector is described in more detail. The problems existing for today in this sector, as well as the methods of solving these problems with the help of unmanned technologies are given. The important interrelation between the automatic control system and its integration into unmanned aerial vehicles is explained. Detailed description of the technical component of the drone, as well as the relationship between each link of the technical means of automation. An example of the software through which the unmanned aerial vehicle is controlled is given
- ДокументОПРЕДЕЛЕНИЕ ЗНАЧИМЫХ ПОКАЗАТЕЛЕЙ ПЕРВИЧНОЙ ИНФОРМАЦИИ ДЛЯ СИСТЕМЫ С БИОЛОГИЧЕСКОЙ ОБРАТНОЙ СВЯЗЬЮ(2018) В. И. Мещеряков, Д. В. Мещеряков, Е. В. ЧерепановаThere were analyzed reactions of the human body under the influence of infrared radiation of a different spectral range as applied to the development of an automatic control system with biological feedback. It was shown that the informative heat transfer of the human body can be expressed by a limited number of signs: heart rate and skin conductivity. A technique for testing and experimental research has been developed to identify the connection of significant indicators of human reaction with the power of infrared radiation.
- ДокументANALYSIS OF THE ENERGY SYSTEM BALANCE EFFICIENCY PROVIDED WITH THE DIFFERENT GROUPS OF GENERATING PLANTS(2018) O. Maksymovа, M. Maksymov, V. Silina, A. OrischenkoCurrently methods of efficiency analysis are being developed and applied, based on optimization tasks for various types and modes. Usually, the optimization criterion for these objectives is efficiency that can be calculated in various ways, for which there is no concurrent views. The target function based on minimization of given cost that allows comparing options with the same useful effect is used to search for the best indicators of power plants operated within the system. Marginal costs on the amount of difference in the useful effect are introduced to the target function in case of various useful effects. The criterion of selecting the best power plant from an economic point of view is the difference between the reduced costs of the considered and the basic options, but this approach does not allow using the results for long-term projections. Such approach depends on the situation and does not reflect the real costs. The value of the target function to optimize the effectiveness of the technical-economic method is not "marginal" and does not allow assessing the impact of various processes on the overall option efficiency. Therefore, the development of the efficiency criterion that considers the changing needs of the energy system is relevant for analyzing the power plant.
- ДокументИССЛЕДОВАНИЕ ЭФФЕКТИВНОСТИ ФУНКЦИОНИРОВАНИЯ АСОЗ ПТЛ НА МОРСКОМ ЗЕРНОВОМ ТЕРМИНАЛЕ В Г. НИКОЛАЕВЕ(2018) И. Н. Кирьязов, С. В. Шестопалов, М. Т. Степанов, В. А. ХобинIn the article the results of functioning in the production conditions of the automated loading optimization system (ALOS) grain of the elevator are considered. The system is designed to generate grain flow simultaneously from several sources, increase productivity, reduce energy consumption for reloading, prevent emergency situations associated with grain debris in the boots of norias and the overhead scales of the scales due to overload. The software of the system is integrated into the software of the automated process control system of the elevator and allows the operator to specify the components of the grain flow and the initial productivity of the flow-transport lines (FTL), select the FTL load control mode and select the FTL productivity setting mode in the current process situation, control the functioning of the ALOS. The results of a comparative analysis of the efficiency of load management during the loading of vessels by the operator "manually" and using an automated loading optimization system, conducted in 2016/17, showed the following: - the average time of shipment to the ship, including idle time, decreased by 27%; - the average shipping performance without any downtime increased by 10%.
- ДокументІМІТАЦІЙНА МАТЕМАТИЧНА МОДЕЛЬ КОНВЕЄРНИХ ВАГОВИМІРЮВАЧІВ ДОЗАТОРІВ БЕЗПЕРЕРВНОЇ ДІЇ(2018) Д. В. Дец, К. Шейда-Голбад, В. А. ХобінIn the article simulation modeling of conveyor weight meters of continuous batchers in MATLAB Simulink environment is considered. Such batchers are certified by metrological services as measuring devices. It requires an accurate reflection of the simulated properties of the weight meters. The obtained complex of imitation digital models of the processes of movement and weighing of the batchered bulk material, which the conveyor weighing meters are realized, allows to conduct correct machine experiments for the development and testing of effective control algorithms by autonomous batchers and their complexes.