Herald of Dagestan State Technical University. Technical Sciences最新文献

{"title":"Structural organization of a multi-level intelligent utility metering system with increased survivability","authors":"I. A. Magomedov, A. I. Magomedov, M. N. Khidivov, M. S. Usmanov","doi":"10.21822/2073-6185-2024-51-1-142-152","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-142-152","url":null,"abstract":"Objective. Development of principles for constructing a multi-level intelligent utility metering system (MISUKU) with increased survivability based on modern utility metering devices (CU) with expanded communication and functionality, as well as determining the fundamental possibility of constructing MISUKU based on a self-configuring mesh network of utility metering devices.Method. The study is based on an analysis of the functional and communication capabilities of modern utility metering devices and advances in the field of information technology and computer technology, as well as the availability of hardware for organizing inexpensive wireless data transmission lines. The work outlines the basic principles for constructing self-adjusting mesh networks of digital metering devices, while the basic device of the first-level system is a subscriber electric energy meter (ASEM), which has good energy, communication and functional parameters.Result. The basic principles for the creation of SNF utility metering devices and the structure of a multi-level system have been developed: the first level consists of ASEE with subscriber gas and water metering devices with built-in electronic devices connected to it via a radio channel; the second level is the district's strategic nuclear forces with a network coordinator installed at the district's transformer substation or on the roof of a high-rise apartment building. The third level consists of microdistricts united in the strategic nuclear forces system in the center, of which there is a control center for collecting and processing accounting and service information, as well as a payment center.Conclusion. The use of ASEE with mechanical gas and water meters and built-in electronic set-top boxes connected to it via a radio channel will make it possible to build a node of a self-organizing mesh network (SNF) of the first level, and on the basis of this network to create a MISUKU with high communication characteristics. The MISUKU structures presented in the work with increased survivability based on intelligent mesh networks of utility metering devices make it possible to increase the reliability of accounting information and the reliability of communications.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":"28 S102","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140694058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"About the Assessment of Group aspects of the Human factor influence on Safety of Technical systems","authors":"D. I. Lobach","doi":"10.21822/2073-6185-2024-51-1-132-141","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-132-141","url":null,"abstract":"Objective. The purpose of theoretical research is the need to formulate and describe additional approaches and topical issues and tasks when conducting an expert assessment of group (collective) aspects of the human factor's influence on the safety of technical systems.Method. The paper considers the methodology of assessment based on the use of the Gauss distribution for the statistical description of cases of the influence of the human factor on safety, shows the relationship between individual and group aspects.Result. Examples are given and explanations are given for the application of a quantitative assessment of the influence of the human factor on the safety of technical systems, taking into account the consideration of safety culture, different levels of professionalism of employees, organizational measures taken, the possibilities of the method and its potential tasks are formulated.Conclusion. The use of statistical distributions to describe the impact of the human factor on safety makes it possible to combine and describe the relationship between individual and group aspects of the phenomenon. This allows the expert to carry out quantitative assessments, modeling and make predictions on the level of safety culture in the organization and the effectiveness of production management or technical systems.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":" 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140691586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heuristic decision making selection of drone models according to specified characteristics","authors":"V. Afonin, V. V. Nikulin","doi":"10.21822/2073-6185-2024-51-1-40-45","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-40-45","url":null,"abstract":"Objective. The noticeable interest in aircraft such as drones for various purposes puts forward certain requirements for their characteristics. Characteristics can be divided into information technology and consumer characteristics from a financial point of view. At the same time, they have their own units of measurement. In this regard, the task of selecting and ranking drones according to some criterion or numerical metric arises. Considering that this problem is quite relevant, this paper considers a certain heuristic approach to sorting a sample of drones by the key of the proposed metric.Method. In the heuristic approach, there is a certain variability in determining the attractiveness of a particular drone in the opinion of the person making the decision to purchase or a specific choice from the existing line of drones available for review based on their characteristics.Result. It is proposed to identify several groups in the existing characteristics, heterogeneous in their properties, both obvious and intuitively created: “good”, “very good”, “less attractive”, “least attractive”. Assuming that several models of drones with the same characteristics are being considered, divided into the specified groups, numerical coefficients are introduced to form a metric by which a given line or selection of drones will be ranked according to the calculated metrics.Conclusion. The proposed heuristic algorithm is based on the transition to the reduced values of numerical characteristics relative to the maximum of each group of characteristics with the calculation of the arithmetic mean of the given values. Depending on the type of specified groups, the coefficients entered into consideration are added or subtracted from the difference between the current characteristic and its average or the difference between the average and the current characteristic. On this basis, metrics are calculated by which the given sample of drone models is ranked.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":"6 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140695800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on the effectiveness of data compression methods in relational and NoSQL DBMS","authors":"V. A. Egunov, V. S. Surin, P. S. Stupnitskiy, R. D. Akhmetova","doi":"10.21822/2073-6185-2024-51-1-87-94","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-87-94","url":null,"abstract":"Objective. The research presented in the paper is aimed at studying the effectiveness of modern DBMSs.Method. Along with traditional relational solutions, NoSQL-based DBMSs are becoming increasingly popular. This is primarily due to the ability of such systems to store and process huge volumes of data. At the same time, to work effectively with this data, it is necessary to ensure its compression. Compression allows you to reduce the amount of stored data and provide quick access to it.Result. A comparative analysis of data compression in the MySQL and OpenSe DBMS was performed.Conclusion. Data compression in OpenSearch is more efficient than in MySQL when using standard algorithms. OpenSearch is an excellent choice if youneed to conserve storage resources while making optimal use of the processor, otherwise both systems will do the job well.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":"106 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140695351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The task of developing a decision support system for calculating departmental assessment of police administrative activities","authors":"R. A. Zhilin, R. V. Nikulin, V. Y. Lazarev","doi":"10.21822/2073-6185-2024-51-1-95-105","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-95-105","url":null,"abstract":"Objective. The purpose of this work is to develop a decision support system in the form of a computer program «Calculation of departmental assessment of administrative activities of the police» based on the algorithm for statistical analysis of data from the «1-AP» report, which allows in an inclusive form (for example, graphically) to track the dynamics of key indicators, contained in the «1-AP» report for officials of internal affairs bodies responsible for maintaining public order.Method. The problem of objective contradiction between the indicators of departmental criteria for assessing the administrative activities of the internal affairs bodies of the Russian Federation and non-departmental assessment of the activities of territorial bodies of the Ministry of Internal Affairs of Russia has been identified. In order to resolve it, it is proposed to take into account the number of identified administrative offenses as an additional indicator of departmental assessment of law enforcement in public places, assessing their growth as a positive characteristic. To identify the quantitative component of this indicator, it is necessary to analyze the dynamics of the data contained in the «1-AP» statistical reporting form.Result. The developed computer program implements: summary and grouping of information from the statistical forms of the «1-AP» report for the entire period of validity of Order No. 179 of the Ministry of Internal Affairs of Russia; analysis and forecasting of time series, adjusted according to various informative indicators of administrative practice; formation of diagrams for graphical analysis of trends in the phenomena being studied.Conclusion. The developed decision support system in the form of a computer program is an effective means of implementing information and communication technologies in the activities of internal affairs bodies. Users of this system will be officials of internal affairs bodies responsible for organizing the protection of public order, as well as cadets and adjuncts studying in legal specialties.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140695986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Methods for assessing the connectivity of an undirected bipolar labeled graph taking into account the destructive impact of external threats on its vertices","authors":"V. Voevodin, N. A. Krahotin","doi":"10.21822/2073-6185-2024-51-1-46-60","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-46-60","url":null,"abstract":"Objective. The main arguments that position the problem of assessing the connectivity of the bipolar graph in relation to the conditions of destructive impact of external threats (threats) as relevant for assessing the vitality of information systems (IS) are discussed operating under conditions of information security threats.Method. The following are presented: formulation of the problem of assessing connectivity for conditions of exposure to threats; a brief overview of existing methods for structural modeling of bipolar structures; results of the analysis of the applicability of existing methods for assessing the stability of functioning (stability) of bipolar structures in relation to conditions of exposure to threats. The initial conditions are accepted: the stability of the information system as a whole depends deterministically on the stability of its structural elements and the network structure itself; the problem of assessing the connectivity of a two-pole structure is basic for assessing the connectivity of the corresponding multi-pole structures; the stability analysis of the impacted object is carried out using minimax criteria, and the result is presented in the form of the minimum value of the stability function and the moment in time of the occurrence of this event.Result. Limiting factors that prevent the use of existing methods to solve the problem have been identified. The main limiting factor is that existing methods are based on probabilistic stationary models that require representative statistics. The second, no less important limiting factor is that the situation characterizing the impact of threats is very dynamic (not stationary), the events themselves are very rare, and the assessment period is comparable to the period of response to threats, which does not allow obtaining effective assessments of sustainability. It is proposed to: generalize existing methods for conditions of non-stationary functioning process, for which, when assessing, take into account changes in the probabilistic characteristics of nodal elements over time; as an indicator characterizing connectivity, use the minimum value of the stability function determined during the period of exposure to threats. The price to pay for ensuring the sustainability of the functioning of the affected object under the influence of threats is the need to ensure structural redundancy.Conclusion. The results of the study can be used by persons who simulate both the object of impact and the processes of its functioning, to make a decision on ensuring the continuity of production processes under the conditions of the impact of threats.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":"3 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140695129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anomaly detection research using Isolation Forest in Machine Learning","authors":"A. S. Kechedzhiev, O. L. Tsvetkova","doi":"10.21822/2073-6185-2024-51-1-106-112","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-106-112","url":null,"abstract":"Objective. The study is devoted to assessing the applicability of the Isolation Forest method in the task of detecting anomalies in network traffic data characterized by insufficient markup. The main purpose of the work is to evaluate the effectiveness of Isolation Forest with limited data markup and its potential in critical areas such as cybersecurity and financial analytics.Method. The study includes data preprocessing, training the model on the training set, and evaluating the model's performance on the test set using accuracy metrics, error matrix, and classification report. To implement this research, the Python programming language and the scikit-learn library were chosen to implement the Isolation Forest, as well as Pandas for working with data.Result. Evaluating the applicability of the Isolation Forest method on unstructured data revealed its potential for identifying anomalous patterns without the need for extensive labeling. This confirms the effectiveness of Isolation Forest in environments where access to labeled data is limited or absent.Conclusion. The results demonstrate high anomaly detection recall despite relatively low overall accuracy, indicating the importance of contextual interpretation of metrics in the task of detecting rare events in data.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":"4 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140696360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Features of mathematical modeling of road safety on highways","authors":"R. V. Guseinov, P. A. Dadaeva, M. M. Shabazov, M. T. Mutalibov, M. Akhmedova","doi":"10.21822/2073-6185-2024-51-1-61-67","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-61-67","url":null,"abstract":"Objective. The purpose of the work is to apply mathematical modeling methods to solve problems of ensuring road safety on highways.Method. Quantitative methods for analyzing road safety problems (BDD) are based on probability theory, mathematical statistics, information theory, multifactor analysis, reliability theory, modeling, programming and other mathematical methods.Result. The main trends in the study of road safety problems are considered. It is indicated that the mathematical dependences of the influence of a limited number of factors are unsuitable for a satisfactory description of the “driver-vehicle-road-environment” (VADS) system as a whole. Paying attention to the uncertainty of objects, properties and connections of the VADS system, the need to use a systematic approach in solving these problems is justified. The need to take into account regional conditions in road safety is discussed. Mathematical models recommended for solving problems of ensuring road safety are presented.Conclusion. Generalization, systematization of the vast empirical material of road accidents accumulated as a result of specific studies taking into account economic, social and demographic conditions and the development of theoretical concepts based on system representations are the most important conditions for solving the problems of ensuring road safety.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140694582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the dependencies of the Vivaldi antenna with a resonator in the electrodynamic modeling software complex","authors":"T. Aslanov, S. A. Ibragimov","doi":"10.21822/2073-6185-2024-51-1-31-39","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-31-39","url":null,"abstract":"Objective. The goal of the study is to optimize a computer model of a Vivaldi antenna with conductive plates on the same side as the resonator.Method. The study is based on electrodynamic modeling methods.Result.The paper presents a computer model of a Vivaldi antenna with conductive plates on one side with a resonator. A comparative analysis of two types of Vivaldi antennas was carried out of the dependence of the beam width and the voltage standing wave ratio on the radius of the current-conducting plate curve in the form of lobes and the values of the opening in two planes θ = 900 (the plane of the antenna's opening) and φ = 00 (the plane perpendicular to the antenna's opening plane) in the frequency range from 3 to 24 GHz. The influence of the shape, size and position of the resonator on the SWR value and the width of the antenna radiation pattern was determined. VSWR values are given for different shapes and sizes of the resonator. The main parameters of the resonator have been identified, which affect the characteristics of the antenna.Conclusion. Electrodynamic modeling allows us to obtain a Vivaldi antenna with the required radiation pattern width with an improved standing wave ratio.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":"82 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140695412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection of «Telegram Rat» virus","authors":"A. I. Dubrovina, M. H. Alkordi","doi":"10.21822/2073-6185-2024-51-1-79-86","DOIUrl":"https://doi.org/10.21822/2073-6185-2024-51-1-79-86","url":null,"abstract":"Objective. The aim of this study is to analyze the «Telegram Rat» virus, emphasizing the importance of awareness to effectively combat cyber threats and ensure security in the digital age.Methods. This paper used an analysis of the characteristics and distribution of «Telegram Rat» viruses. An example of analyzing the technical mechanisms of extortion on the example of «WAGNER GROUP» was given and the steps of virus elimination were formulated.Results. The acuality of the «Telegram Rat» virus problem and ways of its transmission are considered. Practical methods of threat detection and neutralization are stipulated. The method of «Telegram Rat» virus threat detection is based on the analysis of active processes, network activity and file system. It is revealed that the main vulnerability on devices infected with the virus is careless user behavior.Conclusion. The contents of this paper emphasize the importance of vigilance when downloading files and clicking on links. Lack of caution can lead to data loss and information leakage, emphasizing the need for conscious behavior in the digital environment.","PeriodicalId":202454,"journal":{"name":"Herald of Dagestan State Technical University. Technical Sciences","volume":"5 7‐8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140697828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}