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  • Reviews, suggestions and discussions

  • Development of the classification tables "Auxiliary resources" and "Human resources" of the classifier of construction information for BIM-technologies application

    The principles and results of the formation of classification tables "Auxiliary resources" and "Human resources" of the classifier of construction information are considered. The existing world experience of data classification for the development and maintenance of information models (IM) of capital construction objects (CCS) and ways of organizing data associated with the IM: OmniClass (USA), Uniclass 2015 (UK) and Cuneco Classification System (CCS, Denmark). The developed classification tables can be used in the development and maintenance of ССS IM for the identification of auxiliary and human resources, development of process maps and calendar-network planning, for the development of design documentation in terms of construction organization and estimated cost, for cost analysis of investment and construction processes and determination of labor costs.

    Keywords: construction information classifier, information modeling, information model of capital construction object, classification system, auxiliary resources, human resources

  • Analysis of methods of construction of power supply systems in Revit

    Based on the experience gained during the use of Autodesk Revit in the design of power supply systems, the authors assess the features of the implementation of the construction of projects in this section that meet domestic regulatory documentation. A comparative analysis of the methods of constructing power supply projects is given, their advantages and disadvantages are revealed, which is important both from a scientific and practical point of view with a small amount of information in this area that does not have an advertising component.

    Keywords: Autodesk Revit, BIM, information model, bilding engineering, power supply system, building technology

  • Preservation of greenery during construction

    The issues of preserving existing green spaces and other elements of the natural landscape during new construction are considered. Methods for preserving perennial plantings throughout the entire course of construction are proposed. If it is impossible to save the tree at the construction site, a method of transplanting it to another place is proposed. It is proposed at the stage of design and survey work to identify healthy trees that do not grow on the site allocated for a building (structure) under construction. Then solve the problem of locating the object on the ground in such a way as to preserve healthy perennial trees as much as possible. To do this, it is necessary to carry out the removal of the object to the area, moving it as far as possible from healthy trees. The distance required to protect the tree from external influences during work is equal to the projection of the crown on the ground plus 1.5 m. At this distance, it is recommended to make stationary fences for each tree. A tree transplantation scheme and a method for calculating its weight for the selection of equipment for digging and transportation have been developed.

    Keywords: landscaping, construction, tree, tree transplanting, asphalting

  • Automatic system for control and regulation of microclimatic parameters of the steam room of the bath

    The article is devoted to the automation of the steam room of the bath, the description of its functional scheme and the consideration of each element of the system in terms of their functionality and design features. The system consists of sensors that register various microclimatic parameters of the bath, actuators and a controller with a web touch panel to set the desired conditions. This solution is distinguished by providing high safety and significant benefits for human health.

    Keywords: automation, steam room, microclimatic parameters of the bath, sensors, actuators, controller, safety improvement, optimization of control processes

  • An innovative approach to the development of the utopian principle in the architectural search for the ideal image

    The article analyzes the utopian context in architectural activity. Concepts aimed at finding and organizing an "ideal world" remain an urgent topic and feature of architectural thinking. The creative genre of utopia undergoes the next stage of genesis in modern conditions, in which utopian ideas and concepts are accompanied by theoretical and practical methods of predicting possible results, which allows not only to overcome the principle of the initial impracticability of utopia, but also to propose possible strategies for their practical implementation. The utopian approach to displaying the features of the properties and states of an intricate architectural image is becoming an especially important and noticeable phenomenon in the context of the formation and development of a global information and communication society focused on the full use of a variety of innovative technologies.

    Keywords: architectural activity, creative process, image, utopia, harmony, future, ideal world, information technology, innovation, digital models, virtual design environment

  • Technical science. Informatics, computer facilities and management

  • Using machine learning to promote websites

    Search engine optimization allows a website to rank higher in search engines. Through a lot of manipulations on working with the site, you can achieve good results in increasing the conversion of sites. Modern systems for all kinds of data analysis using neural networks can greatly improve the work on this optimization.

    Keywords: website promotion, search engine optimization, neural networks, code optimization, convolutional neural networks

  • Features of building a special communication system based on fiber-optic lines

    The article discusses the features of constructing a special connection based on fiber-optic communication lines. An analysis is conducted on the reliability of using fiber-optic communication lines in terms of the possibility of unauthorized interception of transmitted information. The advantages of practical use of communication systems based on fiber-optic lines are presented. The methods of protecting fiber-optic communication lines from unauthorized access are considered, where the priority method of protecting information is encryption using various methods. In conclusion, the measures necessary for building a reliable communication system based on fiber-optic lines are emphasized.

    Keywords: information, special communication, communication segments, public communication, optical fiber, fiber-optic lines, unauthorized access, encryption, communication system construction, cryptographic protocols

  • Method of calculating the application coefficient of the standard control system equipment on the test bench

    The article considers an approach to estimating the application coefficient of standard control system equipment on a test bench. The relevance of the evaluation task at the design stage of the test bench is shown and a description of the method for solving this problem is given. The proposed approaches can be applied both at the stage of creating a test stand and when upgrading an existing positionю.

    Keywords: automatic control system, test bench, analysis of the testing process, experimental testing, standard equipment, centralized control software package, application coefficient of equipment

  • Modeling of the optimal patrol route of the outfit by the method of branches and borders

    The article is devoted to solving optimization problems related to determining the optimal patrol route of the units of the territorial bodies of the Ministry of Internal Affairs of Russia when they are serving to ensure the protection of public order and public safety on the streets and in other public places, by using one of the mathematical methods of discrete optimization to find the shortest possible movement of employees in the conditions of their limited number and changing operational the situation. The practical implementation of the technology for obtaining the best solution to the traveling salesman problem by the method of branches and boundaries, to achieve the result of which numerical modeling was used, is considered. The possibilities of finding the optimal path of movement are shown when the conditions of the problem being solved change. In conclusion, conclusions are drawn about the need to improve the classical method of branches and boundaries to obtain a more accurate result.

    Keywords: mathematical modeling, optimization problem, method of branches and borders, traveling salesman, internal affairs bodies, public order protection, public safety, operational situation, forces and means, patrol route, efficient allocation of resources

  • Application of machine learning methods for the analysis of personality psychotypes

    This article discusses the solution of the problem of monitoring contact information in a social network and determining the personality psychotype based on it. Most of the material proposed by the developers works with English-language texts to determine the emotional coloring, their classification and, to a lesser extent, clustering. The approach proposed in the article is based on the use of the K-means method to solve the clustering problem of Russian-language texts and subsequent comparison with the results of working with the same data of an already trained model. During the work, was developed an effective method of parsing for collecting data. A proprietary data set has been collected and its processing and detailed analysis have been carried out. The result of the study allows us to make a primary assumption about what kind of psychotype a particular person has. It is quite difficult to determine the accuracy of the results of the task, since there is no predefined correct answer in machine learning without a teacher, and determining the psychotype is a difficult task from the point of view of psychology. All program code is written in the Python programming language.

    Keywords: clustering, psychotype, social network, sanguine, phlegmatic, choleric, melancholic

  • Designing a software solution for automating the calculation of heating wire parameters during winter concreting

    The actualization of industrial development in the Far North poses many key tasks to the construction industry. Concreting is one of such tasks, the performance of which is much more difficult during construction at low temperatures. Based on this, it is necessary to design and develop innovative tools to optimize or rationalize work on construction sites in these conditions. The scientific significance of the presented article consists in an attempt to design a software solution that allows au-tomating the calculation of the parameters of the heating wire during winter con-creting. The practical value of the work lies in the possibility of using the presented materials as a basis for the practical implementation of this program.

    Keywords: сonstruction, Far North, calculation automation, heating wire, program, algorithm, winter concreting

  • Modernization of the algorithm for building the user interface of automated building management systems

    The modernization of the algorithm for creating a user (human-machine) interface of automated operational building management systems is proposed, which allows creating more efficient means of information output. The problems of creating modern production interfaces are analyzed. Modernization includes, in addition to the traditional way of creating the interface itself, taking into account the nature and working conditions of the people using it and other factors.

    Keywords: dispatch control, automated control system, HMI, BMS, SCADA

  • The article is devoted to the issues of automation of software creation processes, in particular, the issue of creating universal means of testing applications for mobile devices

    The paper discusses in detail the process of creating a tool for automated testing that allows you to test applications created for Android and iOS and also provides the results of the research that allows you to determine the reduction in time spent on testing procedures for mobile applications that arise when using the developed tool for all qualifying categories of specialists involved in testing applications. The modular method of solution construction proposed by the authors will allow the future to simply expand the functionality of the solution by adding new algorithms and testing modes, significantly increasing the ""coverage area"" of automated test scenarios.

    Keywords: test automation, user interface testing, code generation, mobile testing, PageObject pattern, software testing, quality assurance, quality management, functional testing, time to market, delivery management

  • Comparison of the Kanban method and the multi-agent approach in the distribution of resources between the same type of units of an industrial enterprise

    Large industrial enterprises can be compared to a complex dynamic system in which management decisions are constantly required. One of the main management decisions, on which the main performance indicators of the enterprise depend, is the process of managing the planning of production. In the process of organizing decision-making, information systems can be used, which are based on mathematical and heuristic calculation methods.organizations of the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

    Keywords: production planning, resource allocation, Kanban

  • Thermal-hydraulic efficiency of a tube bundle under conditions of flow pulsations

    When choosing an intensification method, the assessment of thermal-hydraulic efficiency is an important criterion. In this paper, the thermal-hydraulic efficiency of the pulsating method of heat transfer intensification was assessed as applied to an in-line tube bundle. The thermohydraulic efficiency was estimated by comparing the ratio of the increase in the Nusselt number to the increase in the coefficient of friction factor in a pulsating flow compared to a stationary flow. The coefficient of friction factor was determined by numerical simulation in AnsysFluent. The results of a numerical study showed that an increase in the product of the pulsation amplitude and the Strouhal number leads to a decrease in the thermal-hydraulic efficiency at all values of the Reynolds number, while the thermal-hydraulic efficiency is higher at the minimum values of the Reynolds number.

    Keywords: Reynolds analogy factor, flow pulsation, heat transfer enhancement, thermal hydraulic efficiency.

  • Analysis of the testing time of the control system on the test bench

    The article analyzes the testing time of the control system on the test bench, identifies the components of the testing time, and provides the calculation procedure for a typical test bench. The results obtained can be used to estimate the time of testing control systems at the design stage of test benches.

    Keywords: automatic control system, rocket and space technology, test bench, analysis of the testing process, experimental testing, testing time

  • Determination and ranking of the targets of the offender in an attack on an important state object

    The article deals with the issues of determining and ranking the goals of the offender in an attack on an important state facility. The general goals of violators in an attack on an important state object are described, as well as important state objects with distributed goals preferred by the violator are considered. The material provides a definition of the common goal from the position of important state facilities, where the immediate goals are the subjects of physical protection. The ranking of targets is determined taking into account the probability of their selection by violators and potential losses in case of success of unauthorized actions, which allows you to correctly determine both the concept of creating a physical protection system and technical solutions for its implementation. The article describes the methods of peer review, which are solved by representatives of an important state object with the participation and with the help of independent experts of a specialized organization, who analyze the vulnerability of the object as a whole.

    Keywords: integrated security, methods, models, security forces, offenders, important state facilities, clashes between security and attack forces, offenders' goals

  • Access points locations evaluation of the indoor positioning system in mines

    In this paper, we review a number of algorithms for solving the problem of building a map and the problem of SLAM - Simultaneous localization and mapping - in various formulations. These tasks are solved on a graph structure that describes a mine working, in which a localization system from stationary access points is installed. To solve the SLAM problem, the FastSLAM algorithm is used in various modifications, depending on the method for estimating the positions of access points. In all the proposed solutions, it was possible to achieve an error in estimating the positions of access points of no more than 2 meters. The problem of building a map is solved as a combinatorial problem of searching for a permutation of access points by known positions. The proposed permutation search algorithm showed tangible advantages in terms of execution time over the exhaustive search method on systems with 5 or more access points.

    Keywords: graph, mining, localization, map construction, SLAM, MCMC, particle filter, Kalman filter, Bayes method

  • Method of substantiation of the composition of a set of collapsible road surfaces for the arrangement of temporary highways

    The article considers the use of collapsible road surfaces on temporary roads and develops a method for substantiating the composition of a set of collapsible road surfaces, the use of which will ensure the construction of a section of highway in the most likely conditions, such as entrances to construction sites, as wooden roads and even bridges, approaches to the bridge, detours of main roads during construction. the proposed method of substantiating the composition of a set of collapsible pavement allows you to calculate the composition of the set not only taking into account its weight and size characteristics, but also the conditions of use. The main of these conditions is the uncertainty of the length of the sections of the highway that require the use of the SRDP. In contrast to the existing ones, the proposed method allows to reduce the influence of uncertainty and obtain the composition of the kit, the use of which will ensure the construction of a section of the highway in the most likely conditions.

    Keywords: highway, entrance, road surface, bridge, approach to the bridge, construction site, collapsible road surfaces, slab, road construction, method

  • On the issue of the reconstruction of the A-2 station in the context of the development of the North–South transport corridor

    The article deals with the issue of the reconstruction of the A-2 station in the context of the development of the North–South transport corridor. The relevance of the topic lies in the need to master the growing volumes of transportation from Russia to the countries of Southeast Asia and back in connection with the current reorientation of the main export cargo flow and economic ties of Russia. The analysis of the existing volumes of work of the station is carried out. To develop proposals, an analysis of the volume of work of the station was carried out, according to which there was a decline in production over the previous period. Measures are proposed for the effective development of the expected cargo flow. Statistical modeling methods, queuing systems theory and feasibility studies were used as methods. As a result, the proposals made are aimed at implementing the effective operation of the A-2 station. The reconstruction of the station makes it possible to ensure the development of increased cargo volumes and thereby receive additional income.

    Keywords: relevance, transport corridor, station, goal, analysis, cargo turnover, volume of work, forecast, activities, expected effect

  • Technical science. Building and architecture

  • Formation of a Systematic Approach in the Organization of Instrumental Quality Control of the Hinged Facade on the Basis of the Regulatory Framework

    When conducting quality control, it is necessary to consider the quality of both each individual element of the facade and the quality of the hinged facade as a system. When structuring the review of tools for instrumental quality control of curtain facade systems, their application should be considered according to controlled parameters, which can be divided into two groups. The quality control group of facade system elements combines methods and tools used in quality control of building materials and does not require the contractor to know about the principles of the hinged facade system. The quality control group of the device (assembly) of the hinged facade consists of operations to determine the quality of the operability of the hinged facade system. This group is entirely based on the idea of the work of the hinged facade as a single system. Based on the results of systematization and generalization of data, it was concluded that the current regulatory documentation regulates the use of instrumental control tools, leaving aside the issues of organization that come to the fore when quality control of the hinged facade of a construction object as a whole, when there is a task of choosing and using several tools of instrumental control at the same time. It is these questions that should be the subject of further research.

    Keywords: systems of hinged facades, quality control organizations, a systematic approach in the organization, instrumental control, elements of the facade system, the device of the hinged facade, methods and means of control

  • Shaping in modern architectural design

    The article analyzes the shaping of buildings and structures in modern architectural practice. Form in architecture is primarily a means of expressing and translating concepts. It's also what ultimately fills and divides the space we live in. Form in architecture can have great symbolic and cultural significance and can transform a space for the better or for the worse. The simplest of the forms are known as primary forms. The main shapes include circles, triangles and squares. Each form can be created by a combination of basic forms. When rotated or expanded, basic shapes can create three-dimensional volumes known as basic bodies. In modern architectural practice, it is very common to resort to the use of complex shapes created using spatial curves. The task of the architect is a complete visual representation of such forms in drawings, as well as using modern software graphics packages. The article raises the problem of the correct interpretation of architectural forms formed by such spatial curves (using the Hilbert curve as an example).

    Keywords: architecture, spatial curves, axonometric projections, Hilbert curve, modernism, shaping, ornamentation, space