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  • Development of a dynamic model of the electric drive of the Earth orientation device scanning mechanism

    The article reveals the results of the work carried out on modeling the dynamic model of the electric drive of the scanning mechanism of the Earth orientation device, which is based on a hybrid stepping motor. The simulation is based on NEMA 17HS3410 motor parameters. A brief description and features of hybrid stepper motors are provided. The simplest model of an electric drive is considered, in which there is a rigidly set moment of force, a moment of inertia of the rotor of an electric motor, and also the moments of dry friction and the moment of liquid friction are taken into account. It is shown how the change in the value of fluid friction affects the general behavior of the mathematical model of a hybrid electric motor. The behavior of a single-pole stepper drive is simulated. The relationship of the value of the moment of force acting on the rotor with the passport characteristics of the investigated electric motor is considered. The possibility of controlling the scanning mechanism based on P- and PI-controllers is estimated.

    Keywords: electrodive, Simulink, moment of force, inetria moment, liquid fricton

  • Traffic control system using phase shift fiber Bragg gratings

    The article uses a method of modernizing solutions for constructing vehicle monitoring models made using standard Bragg structures. The applicability of fiber Bragg gratings (FBGs) with structural defects such as phase shifts is carried out. This article proposes a fiber-optic sensor system (FOSS) based on FBG with a phase π-shift, which makes it possible to switch from optoelectronic interrogation methods to radio-photonic ones. The radio-photon approach is presented as an effective method for detecting vehicles in normal traffic. The principle of information signal formation when measuring vehicle parameters. This FOSS allows, on the one hand, to get rid of an expensive optoelectronic interrogator, on the other hand, it requires the construction of neural network models for its work to determine cars of different types and weights.

    Keywords: fiber bragg gratings, phase shift, distributed sensor networks, portable sensor, traffic density monitoring

  • Development of an auxiliary multi-agent subsystem robotic crop seeding system

    An auxiliary subsystem of a multi-agent robotic sowing system for agricultural crops, including autonomous robots functioning as part of a group, is considered as an object of research. The aim of the study is to improve the management of adaptability and productivity of agricultural plants. The tasks of the study included the development of the simplest autonomous robot for introducing working fluids into the cenosis and the choice of its parameters. The experimental data were processed by the methods of mathematical statistics. The developed autonomous robot is made of polymer gel and has the properties of a quasi-liquid body. Its parameters are determined, presented experimentally certain mathematical dependences of the interaction of autonomous robots with working fluids, for example, rainwater.

    Keywords: seeding, watering, robotic subsystem, autonomous robot, polymer hydrogel, quasi-liquid body

  • Simulation of the design activity diversification of innovative enterprise

    The main maintenance of a diversification of production as activity of subjects of managing is considered. being shown in purchase of the operating enterprises, the 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: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

  • Mathematical modeling of the control object for temperature control systems

    The article describes a device for simulating a control object for automated temperature control systems, a mathematical model of the heating and cooling processes of an isolated room, modeling temperature effects on the control object, and a method for implementing a control object simulation on a microcontroller. The device will allow debugging and testing of automated temperature control systems under laboratory conditions, which will improve the quality of temperature control systems being developed.

    Keywords: temperature control, automation of temperature control process, mathematical modeling

  • Transformation of the urban environment: the experience of the Moscow region (on the example of the city of Dmitrov)

    The article considers issues on the arrangement of the urban environment in terms of the integrated development of urban areas. The principles of competent formation of pedestrian spaces are formed thanks to the formed pedestrian spaces of European cities. The ways of development of the urban environment of the city of Dmitrov, Moscow Region, for the attractiveness of the urban environment, improve the condition and aesthetic perception of the territory are indicated.

    Keywords: Moscow region, landscaping, urban environment, pedestrian zone

  • Dynamic control of the microcontroller core power supply voltage

    The article deals with the power supply of the microcontroller core, which allows you to adjust the voltage to ensure the necessary balance between performance and power consumption of the system. When using this source, the core power supply voltage depends on the fill factor of the pulse-width modulated generator. These expressions allow you to adapt the proposed source for a microcontroller with an arbitrary power supply voltage.

    Keywords: microcontroller, microprocessor system, embedded system, stabilizer, core power, performance, power consumption, video surveillance system, pulse-width modulation, fill factor

  • Determination of intensity of movement of motor roads of local importance, located on the Factory highway in Samara

    The problem of major repairs on the factory highway in Samara still remains unresolved, although the issue has been acute for many years. During this time, as statistics show, there were a lot of accidents and damage to vehicles. A heavy load on the roadbed leads to rapid wear of the asphalt surface, as a result, almost every year the Factory highway needs repairs. The load on the highway will increase even more when the section of road connecting the new Kirovsky bridge with the Zavodsky highway is built. The automobile road in Samara along the ZAVODSKOE highway needs major repairs for several years, but the work does not begin, and every spring its condition worsens more and more. The issue remains relevant today.

    Keywords: automobile road, ZAVODSKOE highway, traffic intensity, climate zone, engineering and geological conditions, major repairs

  • Optimization of modified concrete composition based on aggregates from concrete scrap

    The results of optimizing the composition of concrete based on aggregates from crushed concrete are presented. With the help of mathematical and natural modeling matched the composition of the expanding agents sulfoaluminate type, the optimal percentage of components of the modified cement required for producing a material with improved performance characteristics, the mathematical model construction and technical properties of the concrete and the kinetics of their changes to take into account the time factor and strength and weathering.

    Keywords: mathematical modeling, expanding additive, factor experiment, influencing factors, level of variation, experiment planning matrix

  • Development the system for analysis of real estate in typical apartment buildings based on mass valuation methods

    The paper discusses modern approaches to the mass valuation of real estate, automated systems for typical buildings assessment, and also provides the development of a method for the continuous assessment of real estate objects, which makes it possible to effectively evaluate groups of real estate objects and infrastructure. This research is aimed at studying the economic component of this process - modeling of a system for assessing the market valuation of real estate in typal development objects. The purpose of the study is to develop a system of continuous assessment (mass valuation) of real estate, taking into account the current methodological support of the process of assessing the market value of real estate, and should contribute to the improvement of the comparative approach to valuation in the framework of the practical activities of appraisers, as well as for state regulation of the real estate market.

    Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

  • Algorithm and structure of the enterprise financial analysis software complex

    The article proposes a structure and algorithm for managing a software complex for analyzing the financial condition of an enterprise. The developed software package is designed to identify data patterns when conducting financial analysis taking into account the specifics of the enterprise.

    Keywords: analytical platform, management algorithm, data warehouse, data processing scenario, balance sheet, key figure, information base, data visualization, efficiency

  • Technique of modeling thermal processes for electronic equipment

    The article describes the technique of resource-intensive (in terms of computing resources) and accurate assessment of the thermal mode of electron-ic equipment. The method involves the consist use of software packages “AN-SYS” and “ASONIKA–TM” to calculate temperature pattern that occurs dur-ing operation of the device. Accounting result in “ANSYS” is used as a thermal boundary condition of the first kind for the calculation in “ASONIKA–TM”

    Keywords: thermal processes, heat exchange, control system, launch vehicle, finite element method, FEM, ANSYS, ASONIKA – TM

  • Calculation of operational parameters of a household chiller

    A model of a household refrigeration machine (BHM) is considered. The refrigerating capacity, thermal load are determined, the compressor and operational parameters are calculated, the cycle of the chiller in p-i coordinates is built.

    Keywords: household refrigerator, temperature, refrigerator, heat load, cooling capacity, compressor, heat influx

  • RDF as an alternative energy source

    The article deals with obtaining RDF fuel based on solid municipal waste. The expediency of using this type of fuel in the cement industry is justified, since its combustion in cement furnaces has less impact on the environment due to the high temperature level of the process. The composition of RDF fuel by elements is analyzed. Due to the fact that this fuel from different sources has a difference in the heat of combustion of two times or more, the heat of combustion of RDF fuel for the middle zone of Russia was experimentally determined and its compliance with GOST R 55127-2012.

    Keywords: solid municipal waste, MSW, Recycle Derived Fuel, RDF fuel, lower combustion heat, ash content, alternative energy source, colorimetric bomb

  • Settlement automation in the information system for managing investment projects of energy grid companies

    The article is devoted to the process of managing the investment activities of energy grid companies. The life cycle of the investment program of the energy grid company is described. The principle of accounting for investment programs in the company is described, on the basis of which an algorithm for working in an automated system is developed. Also, formalization of the calculation of technical parameters affecting the calculation of economic performance indicators was carried out. A system of indicators of investment attractiveness for electric grid companies has been developed. An example of the implementation of the mechanism for automatic calculation of parameters and construction of diagrams in the system is given.

    Keywords: automation, energy network company, investment project, management system, electricity, key performance indicator, automated system, energy network company, capital investments, reporting