Design Of Automatic System Research Articles

A Real-Time Data Monitoring Framework for Predictive Maintenance Based on the Internet of Things

The Internet of Things (IoT) is a platform that manages daily life tasks to establish an interaction between things and humans. One of its applications, the smart office that uses the Internet to monitor electrical appliances and sensor data using an automation system, is presented in this study. Some of the limitations of the existing office automation system are an unfriendly user interface, lack of IoT technology, high cost, or restricted range of wireless transmission. Therefore, this paper presents the design and fabrication of an IoT-based office automation system with a user-friendly smartphone interface. Also, real-time data monitoring is conducted for the predictive maintenance of sensor nodes. This model uses an Arduino Mega 2560 Rev3 microcontroller connected to different appliances and sensors. The data collected from different sensors and appliances are sent to the cloud and accessible to the user on their smartphone despite their location. A sensor fault prediction model based on a machine learning algorithm is proposed in this paper, where the k-nearest neighbors model achieved better performance with 99.63% accuracy, 99.59% F1-score, and 99.67% recall. The performance of both models, i.e., k-nearest neighbors and naive Bayes, was evaluated using different performance metrics such as precision, recall, F1-score, and accuracy. It is a reliable, continuous, and stable automation system that provides safety and convenience to smart office employees and improves their work efficiency while saving resources.

Automatic Design System With Generative Adversarial Network and Convolutional Neural Network for Optimization Design of Interior Permanent Magnet Synchronous Motor

The optimal design of interior permanent magnet synchronous motors requires a long time because finite element analysis (FEA) is performed repeatedly. To solve this problem, many researchers have used artificial intelligence to construct a prediction model that can replace FEA. However, because the training data are generated by FEA, it takes a very long time to obtain a sufficient amount of data, making it impossible to train a large-scale prediction model. Here, we propose a method for generating a large amount of data from a small number of FEA results using machine learning. An automatic design system with a deep generative model and a convolutional neural network is then constructed. With its sufficient data, the proposed system can handle three topologies and three motor parameters in a wide range of current vector regions. The proposed system was applied to multi-objective optimization design, with the optimization completed in 13–15 seconds.

ANALYTICAL REVIEW OF INFORMATION FOR TESTING THE OPEN PARAMETRIC SYSTEM OF AUTOMATED PROJECTION «VALENTINA»

The article analyzes proprietary systems, such as Lectra systems (France), Gerber Garment Technology (USA), Investronika (Spain), Assyst GmbH (Germany), Wild Ginger Software (USA) and open PatternViewer (USA), Valentina (Ukraine) automated design systems for sewing production. An analytical review of the information for testing the open parametric system of automated projection and design «Valentina» was performed. It was determined that the theoretical foundations of automated testing of automated design systems are currently an incompletely resolved problem. The minimum list of data for qualitative testing is presented, which contains 10 items, the main of which are: listings of source texts of software products, external specification, test plan and methods, test options and obtained results. The article provides a list of Internet sources of the «Valentina» software product distribution, a list of communication methods, as well as a list of external specification items required for testing the «Valentina» software product. Various versions of the «Valentina» were considered, as well as the changes made in the test version v0.7.52 compared to the previous version v0.7.51. Various types of errors that occur during the development of new functions of software products are analyzed, including the inability to perform one of the functions; inability to complete a function; the appearance on the screen of symbols or program primitives that do not correspond to the action; involuntary closing of the program window; closing the program window without warnings about saving data; other errors. The information obtained for testing the open parametric system of automated projection «Valentina» can be used in the future for the analysis of methods of testing software products and their improvement, as well as for the development of automated tests that can be implemented in the processes of creating and operating software products.

RESEARCH OF THE CHANGE OF THE MOTION MODES OF THE WORKING ARRAY IN A TURNING MACHINE WITH AN ADDITIONAL MOVEABLE SLIDING LINK DEPENDING ON THE CHANGE OF DESIGN FEATURES

With the help of the SolidWorks automated design system, analytical studies of the rolling machine with complex spatial movement of the working capacity of the “Turbula” type, which contains an additional moving link of the slider in its kinematic chain, were performed. On the basis of the analytical studies, the relationship between the change in the modes of movement of the working array in the middle of the container, the value of the angular velocity of the drive shaft, the scale standard size and the ratio of the interaxial distance of the container to the interaxial distance of the forks was determined. The classification of the movement modes of the working massif is presented, in particular, which should include cascade, mixed and waterfall movement modes. Each movement mode corresponds to the implementation of the corresponding types of felting technological operations or mixing of loose fine-dispersed substances. The effect of changing the length of the working capacity, which is characterized by the ratio of the interaxial distance of the working capacity to the interaxial distance of the leading or driven forks of the machine, on the change in the modes of movement of the working array has been established. Mathematical dependencies have been obtained for determining the maximum angular velocity of the drive shaft of the “Turbula” type rolling machine with an additional movable slider link, which will correspond to the formation of the necessary mode of movement of the working array. The presented results of analytical studies can be applied in the relevant design bureaus of machine-building enterprises at the stage of designing equipment with complex spatial movement of working capacities and felting technological processes.

Design of an automatic landscape design system in smart cities based on vision computing.

In future smart cities, automatic landscape design can be viewed as a promising intelligent application to reduce the reliance on expert labors. As it is a kind of visual sensing activity, it is expected to develop a robust interaction platform with strong ability of visual information fusion. To deal with this issue, this paper integrates vision computing, and designs an automatic landscape design system in smart cities. The whole design framework can be attributed as three aspects of works: function analysis, structure design and implementation. Among, the visual information processing runs through the three aspects. Then, the generation process of landscape design is simulated in detail via a systematic case study. To prove the significance of visual information processing in our proposal, this article uses a model analysis method to compare the effects of traditional data processing technology and visual data processing technology. The analysis results show that vision computing technology provides technical support for landscape design. We also carry out some performance testing towards the designed automatic landscape design system, and evaluation results are demonstrated via visualization format. The designed automatic system is a proper prototype that can be developed to realistic engineering systems by some following completion.

MECHANICAL CALCULATION OF OVERHEAD POWER LINE WIRES USING SICAD

The power transmission system is a key element of the electric power infrastructure, which ensures the uninterrupted supply of electricity to consumers. Given the importance of system reliability and efficiency, it is necessary to develop methods that save time and effort during design and provide optimal characteristics of wires. The developed automatic design and calculation system is based on computer models and algorithms that take into account various factors affecting the mechanical properties of wires of overhead power lines. Such factors include the maximum mechanical stress to which the wires are subjected due to wind forces, ice loads and other external influences, as well as electrical parameters such as current, voltage and energy losses. In addition, the system takes into account weather conditions, such as wind speed, temperature and air humidity, since these factors can affect the thermal resistance and performance of the wires. Using the automatic design and calculation system has numerous advantages. First, it allows you to significantly reduce the time required for project development and calculations. Instead of manually specifying parameters and performing complex calculations, engineers can use a system that automatically generates solutions. Secondly, the system ensures high accuracy of calculations, reducing the probability of errors that may occur during manual analysis. This contributes to the achievement of high reliability and efficiency of the power transmission system. As part of the scientific research, an approach was proposed, which is based on the mechanical calculation of overhead power line wires using SICAD CAD. The obtained results are presented in the framework of a joint technical meeting of leading specialists of operating enterprises and the team of the department of power supply named after V.M. Sinkova NULES of Ukraine.

Arduino-Based Home Automation System Using ESP8266 Wi-Fi Module

This paper presents the design and prototype execution of a new home automation system that connects its components using Wireless-Fidelity (Wi-Fi) technology. The system under consideration comprises two primary parts. The first element is the web server, which serves as the system core and is responsible for managing, controlling, and keeping an eye on users' homes. Remotely using the internet and locally using a Local Area Network (LAN) the user and system administrator can manage and control the system code. The hardware interface part is the second element which acts as an interface between sensors and actuators. The proposed system is more scalable since it can manage many hardware modules available in Wi-Fi coverage using a single server. The system which is proposed in this paper outperforms the recently proposed home automation systems in terms of scalability and flexibility.

Design of Traditional Chinese Medicine Extraction Workshop Process and Automation System

Design of Traditional Chinese Medicine Extraction Workshop Process and Automation System

ОСОБЕННОСТИ ПРИМЕНЕНИЯ НЕЙРО-НЕЧЕТКИХ МОДЕЛЕЙ ДЛЯ ЗАДАЧ СИНТЕЗА СИСТЕМ АВТОМАТИЧЕСКОГО УПРАВЛЕНИЯ

The article presents a study of methods for the synthesis of intelligent ACS, using the apparatus of artificial neural networks and fuzzy logic, for the design of automation systems for greenhouse complexes.

Automated design evolution for parametric design applied on computer-aided welding fixture designs

Design engineers are required to deliver design solutions by a fixed deadline. Increasing demand for shortening lead time limits the exploratory and creative freedom of the designer. This paper proposes an automated design system that can substitute part of the repetitive and standardized tasks in the design process, increasing efficiency and shifting the design engineer's efforts to creative work. Computer Aided Welding Fixture Design is an engineering domain increasingly being pressed for shortening lead time. Welding Fixture Designs are multi-part structures that secure an assembly product during a welding process. The compact and complex assembly product to be fixed and welded presents a configuration and geometric challenge for the fixture regarding sequence, collisions, tolerances, welding path, human interaction, etc. This paper presents the welding fixture design problem in its general form. To describe the freedom of automation, the paper introduces the term decision space as the subset of a design space feasible by automation. Depending on the desired outcome, the decision space can be exploited through various strategies and automation approaches. This paper presents one of these approaches by implementing an evolutionary algorithm to the parametric fixture design problem of the use case. The results show reduced engineering efforts and the potential for expanding the exploratory spectrum of design proposals during conceptualization.

Improving the quality of cupcakes by optimizing the recipe using a mathematical modeling method

In order to model the process of developing new recipes for muffins from organic raw materials, a mathematical model of the problem has been built. The solution involved using a Microsoft Excel spreadsheet processor and a computer algebra system from the class of automated design systems Mathcad. The object of research is the cupcake "Grechanyk", and the control sample is the cupcake "Stolichny". The following components are proposed to be introduced into the cupcake: buckwheat flour, agave syrup, cane sugar, sesame oil, butter, dried raisins. All raw materials are organic. With the help of modeling the content of food nutrients – amino acids, fatty acids, carbohydrates, and the price of raw materials, a rational formulation of the product has been developed. In the developed cupcake, a comprehensive quality indicator is investigated by qualimetric evaluation. Group quality indicators included organoleptic, physical-chemical, and microbiological indicators. They also include the content of toxic elements, nutritional and energy value. The weighting coefficients of group quality indicators are: 0.15 for organoleptic, physical-chemical, microbiological indicators. The coefficient of weight of the energy value is 0.10; food – 0.20, toxicological elements – 0.25. The results of the study showed that the integrated quality indicator is 0.82. These correspond to an excellent level of quality. The values of group quality indicators are as follows: organoleptic indicators – 0.14; physical and chemical indicators – 0.11. The content of toxicological elements is 0.22. Microbiological indicators – 0.14. The nutritional value is 0.13. Energy value – 0.09. The results indicate the relevance of the use of the mathematical apparatus of design. The research results can be used by food industry enterprises to expand the range of products and to optimize the production process in the presence of the specified amount of raw materials.

Application of the principle of information objects description formalization for the design of information protection systems

The development of information independence of the State requires the introduction of the latest technologies for analyzing, storing, processing, and transmitting information. The focus of this work is improving information security systems with limited access, in particular the development of new methods of designing such systems, which are characterized by minimal influence of the subject-designer on the design process. The object of the study is the methodology and means of designing systems for restricting and controlling physical access, as well as access to information at objects of information activity and information and telecommunication systems of Ukraine. To exclude the influence of the subject of the designer, it is necessary to improve the design process itself. In this paper, the possibility of creating an automatic design system based on the representation of protection objects in the form of objects of a common structure has been mathematically proved. Such a structure combines both telecommunication objects and objects of information activity. Changes in the legislative, regulatory, and technical bases of information protection necessary for the implementation of the proposed system have been determined, in particular, granting the State Communications Committee of Ukraine new powers that ensure the balance of interests of the customer of protection systems and executors. The possibility of formalizing the representation of data on arbitrary objects of protection is shown. This representation makes it possible to create open library semantic databases with incomplete data on the object of protection. A theoretical base has been built that makes it possible to determine the correspondence between the set of threats to the information security of the object and the unambiguous corresponding list of countermeasures. At the same time, information protection projects are distinguished by evolution and uniformity of choice of a set of means of protection to any threats to objects of arbitrary complexity

DETERMINATION OF THE RELATIONSHIP BETWEEN THE CHANGE OF THE MOTION MODES OF THE WORKING ARRAY AND THE DESIGN FEATURES OF THE “TURBULA” TYPE TURNING MACHINE

Using the SolidWorks automated design system, analytical studies of the “Turbula” type rolling machine with an additional movable rocker link with a vertical axis of rotation were carried out for the possibility of determining the dependence between the change in the movement modes of the working array and the design features of this rolling machine. It is noted that the movement of the working array in the filling tanks with different types of movement can be carried out in cascade, waterfall, mixed, as well as closed modes of movement. During the implementation of each mode of movement of the working array, conditions are created for the performance of appropriate felting technological operations or mixing of loose fine-dispersed substances. It was established that the change in the modes of movement of the working array in the rolling container performing complex spatial movement depends on three factors – the large-scale standard size of the rolling machine, the angular velocity of the drive shaft and the ratio of the interaxial distance of the container to the interaxial distance of the forks, which is characterized by the coefficient λ, the relationship is established the relationship between these factors. Mathematical dependencies have been obtained to determine the maximum angular speed of the drive shaft of the “Turbula” type rolling machine with an additional movable rocker link with a vertical axis of rotation, which will correspond to the implementation of the necessary mode of movement of the working array, when it moves in a given capacity. The obtained results of analytical studies can be used in the relevant design bureaus of machine-building enterprises at the stage of designing rolling equipment with complex spatial movement of working capacities.

Функциональная модель системы автоматизированного проектирования железных дорог в информационно-цифровой среде

Purpose: Development of new technology for automated solution for railway design tasks in informational-digital environment. Methods: Structural system analysis methodology, system theory, the principle of decomposition are applied. Results: Based on analysis results for structure and functional possibilities of widely used modern systems of railway and highway automated design, the procedures sequence for existing technology of railway automated design was defined. Functional model of railway automated design system in informational-digital environment, based on the application of informational modeling technologies, data mining and mathematical optimization methods, is proposed. Practical significance: The proposed functional model represents the basis for the development of automated design system that will allow implementing new technology for railway automated design, reducing labor costs and time for the development of design solutions, improving their quality and efficiency.

Latest technologies in production, automated design systems, computer modelling, innovative teaching methods, graphic disciplines

The relevance of the study is due to the continuous development of automated design systems and global trends in the digital transformation of production at all levels of the product life cycle. Since one of the main principles of education is integration with science and production, this integration is the main condition for its further development and a factor in ensuring its quality. The product life cycle begins with project design, which students of technical specialities begin to master by studying descriptive geometry, engineering, and computer graphics. In this course, the skills of working in automated design systems are pawned, so its teaching should take place using updated technologies that the present needs. The purpose of the study is to analyse the experience of teaching graphic disciplines in higher educational institutions and to substantiate the methods of studying the discipline “Engineering and computer graphics” based on the author’s experience, considering trends in the development of digital production. The research work was conducted using general scientific methods by analysing scientific-technical information on the subjects covered and using the method of pedagogical experiment. The study suggests using computer-aided design systems starting with the study of descriptive geometry, provides practical ways to solve classical problems of descriptive geometry by means of automated design systems, defines the minimum skills within the course to ensure further assimilation of the capabilities of automated design systems in special courses, during the implementation of course projects and to reduce the period of adaptation of the future specialist to professional activities. The practical importance of the research is in the development of a methodology for the transition from conventional methods of studying descriptive geometry, which involve the use of drawing tools, to modern ones using computer-aided design systems, which contributes to their accelerated mastering by students to further apply them in the study of technical disciplines

Automated calculation of rectangular road cul-verts in the UKRRVS 22 program

Problem. The use of road culverts is currently an effective and relatively cheap means of passing surface water under the body of the road embankment. The number of road pipes on highways in areas with different topography is approximately 1.4 pipes per 1 km of the route. Road pipes, depending on the cross section, can be round, rectangular, oval, elliptical, arched, polycentric. The following are mainly used on roads: round pipes - 87%, rectangular - 9%, the rest - 4%. Automated design systems are used to calculate the characteristics of water-permeable road pipes, for example, the GRIS_T program is used to calculate the flow capacity of small artificial structures. Also, a program for the calculation of culvert road structures of the UKRRVS according to Ukrainian standards is being developed. The program includes the calculation of storm runoff according to the formula of MA-DY/SoyuzDorProekt and melt runoff; calculation of perforated road reinforced concrete round culverts for operation in non-pressurized mode. The article describes the automation of the calculation of road rectangular culverts. Goal. It is proposed to automate the calculation of road reinforced concrete rectangular culverts. Methodology. The current methods for calculating the throughput of reinforced concrete road culverts have been used. Programming was carried out in the C# language using object-oriented programming. Results. Attention is focused on rectangular pipes. Approaches to the design of rectangular road pipes in the world and Ukraine are considered. Computer-aided design systems for road pipes were analyzed. At the moment, the production uses the program for the automated calculation of culverts GRIS of the company CRE-DO DIALOGUE. The UKRRVS program is at the development stage. A modern method for calculating road reinforced concrete rectangular culverts was considered. The issue of the methodology and algorithmization of this calculation, coding and interface support has been resolved. Practical value. An algorithm for calculating road reinforced concrete rectangular culverts was developed. The article shows a part of the calculation automation code as an example. Originality. An interface for automating the calculation of road reinforced concrete rectangular culverts was developed. The UKRRVS program has been modernized. Conclusions are drawn.

Automatic design system of optimal sunlight-guiding micro prism based on genetic algorithm

Sunlight-guiding micro prism, one of the daylighting systems, can redirect the sunlight into the room to increase indoor daylighting. However, this passive system still has limitations; it cannot accommodate the sun's movement and might produce unwanted glare. An automatic design process is proposed to generate an optimal prism based on the user's location. It uses Python to connect genetic algorithms, 3D computer-aided design, optical simulation software, and image-processed related technology for generating geometric parameter sets, modeling, optical simulation, and data evaluation. The optimal triangular sunlight-guiding prism calculated by the light-guiding fitness function for a 24° north latitude location has 100% light-guiding efficiency at 35°–65° solar elevation angle and has more than 90% at 20° and 70°. It shows that the proposed automatic design process could provide the customized optimal design of the sunlight-guiding prism with a widely applicable solar elevation angle range based on the user's building condition.

MODERN SOFTWARE FOR THE NUMERICAL STUDY OF FLOW IN HYDRAULIC MACHINES

In the past few decades, the field of developing computer software systems has been actively developing, which in turn leads to competition in the software market. Qualified engineers working in the hydroturbine industry must be able to use a computer not only at the user level, but also at the programmer level in order to program modules for their own needs based on existing software systems. Recently, numerical simulation has become applicable to an ever wider class of flows, replacing experimental research methods. Certain numerical models are characterized by different areas of applicability and expenditures of computational resources. The paper provides an analytical review of modern CFD software systems. The advantages and disadvantages of these programs are analyzed in terms of building a three-dimensional model of the object of study, creating a computational grid, setting boundary conditions and visualizing the calculation results. The analysis and comparison of existing mathematical models that used to calculate the spatial flow in the flow path of hydraulic machines has been carried out. There are many different programs for solving hydrodynamic problems, some of the advanced commercial software systems are Ansys, SolidWorks Flow Simulation, Autodesk CFD. There are also open source software products. These automatic design systems make it possible not only to perform high-quality modeling of systems of various physical nature, but also to study the response of these systems to external influences in the form of distributions of pressures, temperatures, and velocities. The calculation algorithms in the programs are similar; the distinctive features of the programs can be evaluated according to the following criteria: grid generation, accuracy, reliability (convergence), calculation speed, model physics, system flexibility. The use of modern software packages for studying the hydrodynamic characteristics of the flow in hydraulic machines significantly reduces the time and material resources in comparison with physical modeling.

Design and Build Smart Street Lights by Utilizing Sensor and Tranduser Technology Based on Arduino Uno

Street lights or also known as Public Street Lighting (PJU) are lights that are used for street lighting at night making it easier for road users to see more clearly the road to be traversed, so as to improve traffic safety and security for road users and prevent the occurrence of accidents. crime, and gives an aesthetic value to a place. Public street lighting is an electronic item that is vulnerable or can be said to have a short service life, so repair and maintenance activities are absolutely necessary. Repairs can include network repairs, replacement of dead lights, checking cables and checking the condition of Public Street Lighting (PJU). The working system of street lights in Sei Kamah 1, Pasiran Village, Sei Dadap District, Asahan Regency, currently still uses the switch button on every electricity pole that is turned on by PLN officers or the surrounding community at night, and street lights still use essential light bulbs. so that the power released is too large and is detrimental to the electricity supplyer, although there are some street lights whose system turns on automatically when it is night and turns off automatically during the day but the installation is only in certain places plus sometimes street lights like this become the target of theft by irresponsible people. This study aims to create an automatic system street light design system in which this automatic system uses a motion sensor and a light sensor so that it can save more electric current. The device used is an arduino uno controller and uses the arduino ide programming language. The results of this study are expected to be a recommendation in the design of Public Street Lighting (PJU).

Intent-Driven Secure System Design: Methodology and Implementation

Given the typical complexity of networked systems in terms of number of components and their interconnections, manually designing their architecture is inherently difficult, and the design process requires expert knowledge and skills. If we also consider the security requirements that networked systems must meet, the task becomes even more demanding, since the manual audit and security mitigation of the architecture are time and labor intensive. This led to research on automated system design, including ways to cover the related security aspects.In this paper we present a methodology for secure system design that uses an intent-based representation of the network service requirements as input, which is annotated with security requirements, and applies the Design Space Exploration (DSE) approach to generate the system design. Security is handled via a MITRE ATT&CK-based security knowledge base, and a set of security check functions, so that the resulting system design meets not only the functional and quantitative requirements, but also the specified security requirements. We implemented this methodology as the secure system designer SecureWeaver by extending the functionality of an existing intent-based system designer that targeted IT/NW services, named Weaver. A case study of a typical corporate network scenario is used to illustrate the feasibility of the methodology in producing a system design that mitigates the associated security threats. The performance evaluation we conducted for this scenario demonstrates that the added security check overhead does not have a significant impact on the overall performance characteristics of the framework.