×

You are using an outdated browser Internet Explorer. It does not support some functions of the site.

Recommend that you install one of the following browsers: Firefox, Opera or Chrome.

Contacts:

+7 961 270-60-01
ivdon3@bk.ru

  • Development of a system for remote monitoring and control of spatially distributed objects using LoRa network technology

    Relevance and goals. The article describes a project in the field of solving the problem of managing organizational systems through the development of a system for remote monitoring and control of spatially distributed objects using LoRa network technology. Materials and methods. The project provides testing and practical use of LoRa networks. The developed system consists of 3 main modules: Devices, server part, and client application. In turn, devices are divided into gateways and end devices. Results. An automated system for managing spatial objects was designed, gateway devices and end devices that form a prototype of the Internet of Things network were developed and tested, as well as the server part of an automated system for remote control of spatially distributed devices. Conclusions. The system was tested and debugged, and a streamlined system for remote monitoring and control of spatially distributed objects was obtained based on the concept of the Internet of Things using LoRa network technology. It is assumed that the results of R&D will be in demand in organizations whose activities involve the use of spatially distributed resources.

    Keywords: Internet of things, management of geographically distributed systems, LoRa networks, geosystem approach, spatial data infrastructures

  • Determination of the granulometric composition of the result of drilling and blasting operations in a quarry using neural networks

    The drilling and blasting method is currently the most widely used for mining rocks. An indicator of the high–quality drilling and blasting operations is the uniform granulometric composition of the exploded rock mass - the percentage of oversized ore pieces should be minimal. The percentage of oversized and its increase have a significant impact on the technical processes of transporting rock mass, leading to an increase in the costs of loading and transportation operations and secondary crushing of oversized ore masses. The paper describes the results of a study of methods for determining the granulometric composition of drilling and blasting operations using neural networks of segmentation Unet and FPN. Images taken from UAVs are used for analysis. A method of classifying ore by size has also been developed, which ensures the accuracy of the proportion of correct answers of more than 0.91. The expected result of the introduction of the system for automatic determination of the granulometric composition of drilling and blasting operations is the possibility of more accurate control over the quality of their performance.

    Keywords: granulometric composition, Unet, FPN, classification, segmentation

  • Development of a system for detecting areas with defects in the development of corn crops based on photos from UAVs

    In this work, the developed system for detecting areas with defects in the development of corn crops was investigated from a photograph taken by an unmanned aerial vehicle (UAV) using computer vision. To solve the problem of detecting such sites, the structures of the YOLOv5 and YOLOv8 neural networks were considered. The use of the developed software will reduce labor and time costs for image analysis, which in turn will reduce the response time when problem areas are detected in agricultural fields to achieve higher yields.

    Keywords: instance segmentation, YOLOv5, YOLOv8

  • Organization of a cartographic database management system with associative protection

    The concept of a two-dimensional associative masking mechanism, introduced earlier and necessary for further consideration, is used to protect the data of cartographic scenes represented by point, linear and areal objects. The masking mechanism is the basis of associative steganography. In this case, the objects and coordinates of the scene are represented by code words in the alphabet of postal symbols and are masked with the further formation of stegocontainers. A set of masks is a secret key used further to recognize a scene represented in a protected form by a set of stegocontainers. The article deals with the organization of specialized DBMS for the protection of cartographic scene data with the introduction of two levels of such DBMS – server and client. Mono- and multicluster organization of request processing is offered for the server part of the DBMS. Practical recommendations on the use of mono- and multiclusters are given.

    Keywords: associative steganography, masking, stegomessage, cartographic databases, parallel DBMS, mono- and multicluster, scene analysis, cryptography, stegostability, information security

  • Overview: Advances and Challenges in Analyzing and Diagnosing Product Defects by Digital Methods

    The article provides an overview of the analysis and diagnosis of product surface defects, evaluated using digital image processing. The search for scientific publications was carried out mainly in the Scopus and RSCI scientometric bases for the period 2019-2023. The purpose of this article is to determine the best methods for assessing the destruction of materials using digital images. The main methods of processing and analyzing digital images are considered. The perspective of unification of segmentation modes by digital image acquisition sources and combining images from various recording sources to obtain objective information on the nature of material destruction is shown. To reduce the time for assessing the degree of destruction of materials, it is proposed to gradually use the methods of segmentation, filtering digital images of defects in metal products with subsequent calculation by a neural network.

    Keywords: defect, control, digital image, neural network.

  • Architectural and compositional features of the traditional settlement structure in the mountainous territory of North Ossetia-Alania

    This article represents the initial stage of research on the material layer of the architectural-natural environment of the mountainous territories of North Ossetia. The study involves analyzing and studying the traditional settlement structure in this region, taking into account architectural-compositional features. The main goal of the research is to understand and describe different architectural approaches used in traditional settlements of North Ossetia. To achieve the set goals, the study utilizes geographic information systems and programming. Geographic information systems enable the analysis of spatial data and visualization of compositional forms of settlement structures in mountainous territories. Programming allows automating data processing and analysis processes. The research also takes into account the natural and landscape features of the region. Natural conditions of the mountainous territories of North Ossetia influence architectural decisions, such as material usage, adaptation to uneven terrain, and more. It is important to understand how architectural-compositional features are combined with natural features and contribute to the formation of sustainable and harmonious settlements. The obtained results of the research will have practical value for the preservation and use of traditional architecture and cultural heritage of North Ossetia. They can be used in the planning and design of new settlements, considering the unique architectural-compositional features of this region and with the aim of preserving its unique cultural and natural environment.

    Keywords: settlement structure, mountainous territory, composition, shape, natural landscape, relief, architectural composition, North Ossetia, Alania, mountain settlement

  • Model of preservation of the architectural and park ensemble of the Peter and Paul Park in Yaroslavl

    The article raises the problems of preserving historical architectural and natural complexes on the example of the Peter and Paul Park in Yaroslavl. In the Introduction to the article, attention is drawn to the importance of the problem of preserving historical monuments of architecture or art not only in the capital cities, but also on the periphery. The following are the main methods used in the work to assess the state of the architectural and park ensemble, to identify its characteristic architectural and landscape features and to develop a theoretical conservation model. In the main part of the article, the historical stages of the formation of the architectural and park ensemble of the Peter and Paul Park, their influence on the final appearance of the ensemble are considered; a comparative analysis with similar architectural and park ensembles is given, common characteristic features are identified and the principles of the formation of the Peter and Paul Park are established. As a result of the conducted research, a model of preservation of the Petropavlovsk architectural and park ensemble of Yaroslavl is proposed, presented in the form of a master plan of the park territory, which contains proposals for the reorganization of the territory, pedestrian park network and restoration of historically significant structures. In the final part of the article, the main conclusions based on the results of the study are formulated.

    Keywords: architectural and park ensemble, Peter and Paul Park, Yaroslavl Big Manufactory, regular layout, theoretical model of conservation

  • Road sign detection based on the YOLO neural network model

    This article presents a research study dedicated to the application of the YOLOv8 neural network model for road sign detection. During the study, a model based on YOLOv8 was developed and trained, which successfully detects road signs in real-time. The article also presents the results of experiments in which the YOLOv8 model is compared to other widely used methods for sign detection. The obtained results have practical significance in the field of road traffic safety, offering an innovative approach to automatic road sign detection, which contributes to improving speed control, attentiveness, and reducing accidents on the roads.

    Keywords: machine learning, road signs, convolutional neural networks, image recognition

  • Application of fuzzy set theory to develop a methodology for assessing the impact of cultural heritage protection zones on the value of commercial land

    This paper examines the impact of regulations on cultural heritage protection zones on the cost of land plots intended for hotel accommodation. The application of the theory of fuzzy sets to assess the influence of cultural heritage objects on the value of commercial land plots is substantiated. The result of the study is a methodology for estimating the share of the value of a commercial land plot attributable to the presence of a cultural heritage protection zone, based on the methodology for determining easement fees and the theory of fuzzy sets.

    Keywords: hotel, historical and cultural monument, phasification, market value, cadastral value, type of permitted use, term-set, restrictions of use, adaptation, sustainable development

  • Developing the associative file protection application

    In today's information environment, characterized by the increasing digitalization of various aspects of daily life, information security is of paramount importance. Many types of personal information, including identity, financial and medical records, are digitally stored. Organizations need to protect their intellectual assets, sensitive data and business information from competitors and insider threats. The synergistic approach of combining cryptography and steganography provides increased sophistication in analyzing transmitted data and reduces its vulnerability to attacks based on statistical analysis and other pattern detection techniques. Associative Steganography is a methodology that integrates the basic principles of steganography and cryptography to provide strong data protection. The development of a software application designed for associative file protection can be applied in a wide range of areas and has significant potential in the context of information security. In this article the prerequisites for creating this application are discussed, the program design of the application is described using UML (Unified Modeling Language) and aspects of its implementation are analyzed. In addition, the results of testing the application are investigated and further prospects for the development of associative steganography are proposed.

    Keywords: associative steganography, stego messaging, stego resistance, cryptography, information security, Unified Modeling Language, .NET Framework runtime, Windows Presentation Foundation, DeflateStream, BrotliStream, MemoryStream, parallel programming

  • The problem of the identity of the architectural appearance of the mountainous territory of North Ossetia

    In this article, we delve into the contemporary identity of the mountainous region of North Ossetia, with a focus on its architectural and material framework. The architectural complex of North Ossetia is distinguished by its unique synthesis of four architectural fabrics or layers, each representing an architectural expression of its respective historical epoch. These architectural layers reflect the rich heritage and historical roots of the region, spanning from ancient times to the present day. Analyzing these layers allows us to understand how various historical factors and cultural influences have shaped the architectural character of the mountainous terrain. Understanding this synthesis of architectural fabrics is a key element in preserving and maintaining the identity of this region and its architectural culture. This research aims to contribute to a deeper appreciation of this rich architectural heritage and its role in the modern world.

    Keywords: Architectural appearance, identity, traditional architecture, architectural layer, mountain settlement

  • Reinforcement of glued wooden elements of a circular mesh vault

    The article presents the results of a study of the use of reinforcement in glued wooden elements of a circular mesh vault. The use of reinforcement in flat wooden structures has proven itself well, but the possibility of using reinforcement in large-span spatial structures still remains little explored. A number of authors presented conflicting data regarding the increase in the bearing capacity and rigidity of reinforced wooden glued elements. In the proposed work, a numerical experiment was performed to compare various options for reinforcing elements of a circular mesh vault. 10 options for external and internal reinforcement of elements with various materials were considered. As a result of the analysis of the stress distribution in the section of the elements, it was revealed that external reinforcement is a more priority method of reinforcement in terms of the stress-strain state of the element. The dependences of the deflection on the height of the section and the area of the reinforcement were determined. The most appropriate solution in terms of material consumption, economic efficiency and corrosion resistance is internal reinforcement with carbon composite reinforcement.

    Keywords: Circular mesh vault, glued timber, wood reinforcement, FRP, external reinforcement, numerical stress analysis, economic efficiency of reinforcement

  • Analysis of structural schemes of a multi-storey wooden building

    The article deals with the application of load-bearing and enclosing structures made of glued wood for multi-storey, including residential, buildings. Introduction. The relevance of the construction of wooden multi-storey buildings is confirmed by quite a large experience of construction abroad. Also, there is an increasing interest in this industry in Russia at present. Theoretical numerical study and technical and economic evaluation of the results. The stress-strain state and technical and economic indicators of three structural schemes of the building are analysed in the proposed work on the basis of the theoretical study: frame scheme - full frame with bearing columns, floor and roof beams; combined structural scheme - vertical bearing elements are wooden columns, glued wooden panel is used as floor and roof; frameless structural scheme - all the structural elements are made of glued wooden panels. Conclusions. As a result, the most rational and economically favourable structural solution of a multi-storey building made of glued wooden elements has been obtained.

    Keywords: glued timber structures, wooden multi-storey building, structural design, economic efficiency, stress-strain state

  • Development of automatic control system of sausage smoking chamber

    This paper deals with the development of automatic control system for sausage smoking chamber. Manual control of the smoking process can lead to errors and irregularity, so automation becomes a necessity. Smoking chamber control system works on two circuits - temperature and humidity. An automatic smoking chamber control system provides optimum conditions for smoking products. The paper presents the transfer functions for each circuit and the structural diagram of the control system. The coefficients used in the calculations were obtained from experiments conducted at a sausage production facility in Izhevsk. The paper analyzes the stability of the system by calculations and verification in the Matlab Simulink environment. Based on the verification, it was found out that the automatic control system of the sausage smoking chamber developed by us is working.

    Keywords: smoking chamber, control object, humidity control circuit, temperature control circuit, automatic control system

  • A training system for testing knowledge and skills in the basics of programming in high-level languages

    The article is devoted to the development of training systems for training specialists in automation and informatization. The structure and mathematical model of a training system (TS) were developed to control skills in training these specialists (in particular, in the basics of programming). The parameters of the mathematical model are based on the representation of knowledge about the studied objects and processes in the field of development of automated information systems, which allows using TS to automatically generate and evaluate small practical tasks for students. A prototype of TS software in the form of a web application has been developed. In a practical aspect, the use of TS in the educational process in the disciplines in the field of programming will reduce the proportion of labor-intensive work of the teacher in compiling and checking assignments.

    Keywords: information technologies in education, training system, control of knowledge and skills, high-level programming languages