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Proceedings of the Southwest State University

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Vol 23, No 6 (2019)
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Constructions

77-89 820
Abstract

Purpose of reseach is  determining the category of technical condition of building structures to assess the residual resource and service life of industrial facilities and urban infrastructure. Development of a fundamental technical solution to the problem of comprehensive restoration of a workable technical condition of building envelopes, including the provision of mechanical and heat engineering requirements.

Methods. According to the current regulatory requirements for buildings put into operation, it is necessary to conduct an engineering survey at least once every 10 years. During the engineering survey of the building located at Kursk region, Kurchatovsky district, K. Libknekhta village, ul. Mira 1, significant defects and damages affecting the technical condition of the building envelope were revealed.

Results. According to the results of studies, some factors were identified that need to be eliminated. The ways of solving the identified problems and defects associated with the building envelope are given and described in detail to restore the building to its proper position.

Conclusion. When conducting surveys of building structures of buildings and structures, it is necessary to pay attention not only to strengthening building structures, but also to restoring the thermal characteristics of building envelopes and bringing them into line with the requirements of current regulatory documents. To accomplish this task, a reinforcement design has been developed that creates the necessary reinforcement and brings the thermal characteristics of the building envelope in line with modern requirements to ensure the necessary energy efficiency of the building envelope. 

90-98 753
Abstract

Purpose of reseach. This article proposes the development of a new methodology for determining the settlement of a homogeneous foundation base on the basis of the layer-by-layer summation method, which reduces the amount of calculations performed.

Methods. The boundary of the compressible stratum can be determined graphically from the condition that the additional stresses are equal to half the natural stresses. Knowing the value of the depth of the compressible stratum, we can determine the total value of the coefficients included in the well-known formula for calculating the settlement of the base by the method of layer-by-layer summation. Having determined the value of the specified coefficient in the layer located directly below the base of the foundation, we introduce the coefficient Kα, which reflects the proportion of sediment in the layer under consideration.

Results. The application of the developed coefficient Kα allows determining the base settlement by calculating the deformations of one soil layer located directly below the base of the foundation, which greatly simplifies the design of underground structures. As an example, we consider a foundation, the average pressure under the sole of which is 1200 kPa, the laying depth d = 2 m, the base is homogeneous with a deformation modulus of 20 MPa and a specific gravity of γ = 18 kN / m3. The settlement of the building-basement system was calculated by the method of layer-bylayer summation and the critical analysis of the results was performed. When calculating precipitation by the method of layer-by-layer summation according to the known formulas given in SP 22.13330. 2016 “Foundations of buildings and structures”, it was obtained a draft value of 9 cm. When calculating the base deformations according to the proposed method, the boundary of the compressible thickness Hc = 5.7 m was graphically determined. The coefficient value was 0.203, and the draft was 9 cm.

Conclusion. The settlement values determined in accordance with current regulatory documents and the developed methodology are the same, which allows us to conclude that the proposed method has a sufficient degree of reliability and can significantly facilitate the process of determining the deformations of the base of buildings and structures.

Mechanical engineering and machine science

8-20 521
Abstract

The work is devoted to a universal resource-saving method of parts processing - electric spark alloying (ESA). It is used both in manufacturing and repairing. This method allows you to apply reinforced and restored coatings to various objects (parts, tools, and tooling) regardless of their shapes and sizes.

Purpose of reseach is to show high universality and efficiency of ESA method on the examples of its practical application for problem solving of machine-building production and repair.

Methods. The work is analytical and carried out taking into account authors' practical experience.

Results. Some information about ESA method, coating forming mechanism, their thickness and properties is given. Implementing strengthening technologies wear resistance is increased by 2-5 times and more by coatings of increased hardness using electrodes from metal-ceramic hard alloys based on carbides of TiC, WC and other hard compounds. The expediency of recovery technologies is shown: wear of most parts (about 85%) of various techniques does not exceed 200 um and their recovery cost is usually no more than 25-30% of a new part cost; recovered parts resource is commensurate or exceeds new parts resource. Adjusting and restoring technologies are described using specific examples.

Conclusion. Given examples of practical application of ESA method confirm high universality and efficiency of this method for solving machine-building and repair production problems. Obtained results can be used in method selecting for strengthening or reducing of various objects from metals and alloys (parts of machines, tools, technological equipment) taking into account ESA advantages.

21-33 589
Abstract

Purpose of reseach. Modern car is a very complex system which has about 15... 20 thousand parts. More than 7 thousand lose their initial characteristics during operational process. As practice shows, more than 4000 car parts lose their operability much earlier than the expiration of vehicle life as a whole. These factors lead to significant repair costs, as well as profit losses caused by long delays in part of the rolling stock. Efficiency and qualitative improvement growth of various areas of public production pose new and more complex tasks to increase the efficiency and reliability of parts. These tasks can be solved both by creating special innovative materials and by developing and introducing into production the latest methods of car parts strengthening and applying protective coatings. Electric spark alloying of metal surfaces is one of these methods. Electric spark alloying is widespread in most industries, including automotive manufacturing, mechanical engineering and metalworking. Electric spark alloying method provides high degree of adhesion, high efficiency and low energy consumption. Electrodes with nano particles are of greatest interest. The most promising method is electroerosive dispersion used in the production of nano materials. The purpose of the work is to study coatings' properties obtained by electric spark alloying using powder electrodes made from electroerosive particles obtained in distilled water from titanium alloy wastes of grade ВТ6.

Methods. ВТ6 grade chips were used to prepare titanium powder by electroerosive dispersion. Consolidation of the particles received by electroerosive dispersion of BT6 titanic alloy waste is done by spark plasma agglomeration method with the use of spark plasma agglomeration system of SPS 25-10. UR-121 installation was used to cover electrospark coverings. Experimental pictures on QUANTA 600 FEG raster (scanning) electronic microscope were made to study coverings' form and morphology. X-ray spectrum analysis was performed by EDAX 's energy dispersion X-ray analyzer built into QUANTA 600 FEG raster electron microscope. Surface roughness of samples was examined on SURTRONIC 25 profilometer.

Results. It was experimentally stated that titanium, oxygen, aluminium and tungsten are the main elements in the sintered sample of titanium particles obtained in distilled water. It was stated as a result of properties investigation of powder electrodes from electroerosive particles and coatings obtained by electrospark alloying. Other elements are present in minor amounts. Roughness of electric spark coated samples is Rz 13.2 um (Ra 2.14 um). These particles obtained in water distilled from ВТ6 titanium alloy waste can be used for electrodes suitable for automotive parts recovering by electric spark alloying.

Conclusion. Obtained results can be used in creation of resource-saving processes of metal alloys and composite materials. 

34-44 566
Abstract

Purpose of research. Accuracy improving of product forming additive methods is described in the paper. Analysis is carried out; new device design for product forming by additive methods is done on the basis of parallel-serial structure mechanisms. This device design provides rigidity of technological system, increased accuracy of final element positioning of forming system, thus expanding technological capabilities of additive formation.

Methods. Formation of parts surfaces by additive methods is characterized by high formation error size (approximation).  It is necessary to ensure orientation of the surface in order to reduce the size at which normal will coincide with the axis of forming system final link at formed surface point. The paper presents results of the analysis aimed at existing structures installation of additive forming devices on the basis of parallel-serial structure mechanisms ensuring high accuracy of final link positioning of forming system.

Results. Device design for additive product forming according to 3DMP technology - technology of additive forming with electric arc in protective gases, application of which provides high accuracy of final link positioning of forming system, excludes possibility of rigid consumable material jamming in the form of wire due to design of supply mechanism, which is rigidly fixed on the device base for additive forming.

Conclusion. Application of developed device design will make it possible to eliminate disadvantages of existing devices for additive forming, to ensure accuracy of final link positioning of forming system for additive equipment, to exclude possibility of rigid consumable material jamming, thus expanding application field of additive technologies. 

45-55 454
Abstract

Purpose of research.  Improving surfaces' forming by a blade tool is an up-to-date task. Labour intensity of turning processing is a dominant part of all working. Vibrations during turning work are the result of premature tool wear and increased surface roughness of the parts. New cutter designs are of practical and scientific interest. They can reduce vibrations occurring during cutting, increase their persistence and improve processing quality. The aim and objectives of this proposed structural line of damping cutters with adjustable (controlled) rigidity are improvement of cutting tool structures, which allow to increase its resistance due to vibration damping; creation of efficient technological processes of cutting materials, which improve quality of treatment; improved operational characteristics of cutters.

Methods. Existing structures of vibration damping cutters with elastic damping pieces of constant rigidity, in which holder or mandrel with cutting plate is installed, do not have necessary requirements for efficiency of vibration reduction due to impossibility of tool stiffness variation. Besides, there is high labour intensity of cutters preparation for operation and dismantling. Innovative cutter designs with adjustable (controlled) rigidity are presented.

Results. The developed line of vibration-quenching cutters with rigidity variation and taking into account disadvantages of existing structures makes it possible to control vibration frequencies of perturbating force and components of a tool system which excludes uncontrolled growth of vibration amplitude and significantly prolongs efficiency of cutters with high quality of processing. It depends on processed material and cutting process modes. Existing and new designs of damping cutters make it possible to classify them. So it is possible to carry out research on their improvement.

Conclusion. Proposed damping cutters with varying rigidity meet goals and objectives. According to theoretical research and industrial tests, simplicity of structures and technologies of new damping cutters manufacturing it is possible to implement them into production. 

56-76 622
Abstract

Purpose of research is study of the effect of the quality of the original charge on the complex of physical, mechanical, technological and corrosion properties of high-carbon tool steel U10A.

Methods. High-carbon tool steel U10A, smelted at Tulachermet PJSC using metallized sponge iron pellets, scrap metal and a billet obtained by the fluidized slag blanket, has been chosen as the object of study. Steel was smelted in a three-ton arc furnace, subjected to out-of-furnace vacuum treatment in a ladle, cast into billets with a cross section of 280 × 320 mm and cooled slowly together with the furnace. Then, the obtained blanks were forged into a square of 150 × 150 mm (for making dies) and 40 × 40 mm (for samples) with cooling in sand and subsequent annealing. The experimental study of the chemical composition of U10A steel melts was determined by the method of photoelectric spectral analysis using an atomic emission spectrometer SA 2000 according to GOST 18895-97. 

Results. It has been found that the use of pure original charge has a positive effect on the properties of the melted metal. Steel U10A, smelted on the original charge, is not inferior in strength characteristics to steel on OMSH, surpassing the latter in terms of its plastic properties and especially in toughness. It is shown that steel smelted on the original charge is characterized by a lower content of micro-impurities, has less resistance to austenite decomposition and lower hardenability. It is revealed that, due to the lower stability of austenite, steel melted on the original charge must have a higher critical hardening rate, which should be taken into account when choosing heat treatment modes. It is established that the long-term strength of U10A steel in a medium that causes hydrogen cracking, largely depends on the heat treatment conditions and on the purity of the steel. Cleaner steel has a higher resistance to hydrogen cracking and, therefore, greater durability during operation.

Conclusion. The results can be used to create resource-saving processes for processing metal alloys and composite materials. 

Computer science, computer engineering and IT managment

99-114 670
Abstract

Purpose of research. The purpose of this study is to assess the possibility of applying the methodology for centralized management of systems and information risks using the example of informatization of public departments of Republic of Tyva in order to optimize the cost of purchasing technical, software and hardware-software means of protecting information, as well as the payroll of maintenance technical personnel.

Methods. One of the main research methods is the creation of an experimental model of the mechanism of a single information and computing network, combining various government departments located within the same administrative building, which allows working simultaneously with distributed or centralized applications, databases and other services, as well as centralized information risk management security. The next research method is the analysis and study of the principle of operation of information resources, information systems, databases, and the increase in the number of domain users if they are combined into a single data transfer network. The interaction and effectiveness of personnel, a specialized unit based on one government agency, ensuring the regular functioning of the network and the necessary level of information security for all government departments.

Results. As a result, an economic effect is achieved by eliminating the acquisition of duplicate software and hardware information protection, increasing the efficiency of using unified information services, and creating a centralized structural unit that uses risk management tools and makes information security management decisions based on the principles of system analysis , structuring method and expert survey methods. The results of the study have been used in solving problems of improving the information security management system of the authorities of Republic of Tyva.

Conclusion. We have developed the original information technology architecture of the information security management system and centralized use of information technologies for the government of Republic of Tyva. The distinctive features of the structure of software tools for the centralized approach are the multi-agent implementation of the control elements of the decision support system and the integration of various types of security management models into a single complex. 

115-132 1203
Abstract

Purpose of reseach. The main purpose of this work is to increase the efficiency of a neural network model when navigating a mobile robotic platform in static and dynamically generated environments. 

Methods. To solve this problem, precise setting and optimization of neural network hyperparameters were proposed. In order to encourage agents to explore the environment, the reward system was adjusted to increase the reward when the distance from the agent to the target point was reduced, and the penalty increased when moving in the opposite direction to the end point and passing each subsequent scene. This distribution of rewards and penalties encourages agents to learn actively and helps to reduce the total number of scenes. In order to reduce the amount of data processed by a neural network, normalization of input vectors was introduced. The learning time of the neural network model was reduced due to the parallel training of agents and, consequently, increased experience as a result of the environmental research. 

Results. The proposed approach reduced the learning time by 30% and improved the navigation efficiency of the mobile platform by 10% in a dynamically generated environment and by 22% in a static environment compared to the non-optimized model. 

Conclusion. The proposed solution can be used in conjunction with other methods of tracing and navigation, when the taught neural network works simultaneously with the already developed and proven navigation algorithms, for example, if the mobile platform connects a taught neural network only to adjust the position in space and to prevent collisions with other objects. 

133-147 1172
Abstract

Purpose of reseach. Robot exoskeletons open up new possibilities in the rehabilitation of patients with lower limb injuries. Despite the growing number of publications on this topic, many issues related to the development of design tools based on the simulation of human movement in an exoskeleton using the theoretical basis of stable movement in the upright position have not been studied well enough. Therefore, the purpose of this paper is to develop methods for improving the efficiency of the lower extremity exoskeleton control system for biped gait. 

Methods. The key feature of the paper is the application of modeling techniques determining the laws of the exoskeleton motion. Methods of mathematical modeling of the motion of sections are used, taking into account their subsequent possible use in modeling the motion of exoskeleton sections; trajectory equations are composed using the vector-matrix method. The trajectories of the exoskeleton's foot, lower leg, and hip movement during steady walking are studied.

Results. To simulate the operation of a robotic complex - a prototype of an exoskeleton of the lower extremities with ten active degrees of freedom, kinematic definition the trajectory of the sections is used. To find the vector of generalized coordinates, the inverse kinematics problem is solved applying the vector-matrix method using the Jacobian matrix. The results of numerical simulation show high convergence and eficacy of the proposed method. The proposed method allows defining the trajectory of the operator in the exoskeleton in real devices.

Conclusion. In the paper, the study of walking is performed from the standpoint of modeling a quasi-static gait using kinematic approaches. The developed method for determining the defining angles of rotation of the exoskeleton sections for different foot positions taking into account the position of the mass center projections, is used in the development of algorithms for controlling human motion in the exoskeleton. 

148-160 578
Abstract

Purpose of research. This paper is a description of the methodology for regional socio-economic system management based on the principles and concepts of management theory. 

Methods. A methodology for regional socio-economic system managing has been developed, taking into account the impact of National projects and the influence of the external environment. The methodology consists of six stages and fourteen techniques that allow describing the regional socio-economic system management in terms and tools of the management theory: the region itself is considered as an object of management experiencing a controlling action formed under some affecting influence. The methodology also assumes the formalization of a negative feedback system and a control system in the developed model of regional socio-economic system management. 

Results. The methodology of managing the regional socio-economic system can be used in the management process. Those who make management decisions at the regional level usually rely on their own professional skills, past experience, and intuition. However, the heuristic approach to regional management can be extended by the capabilities of the developed methodology, the practical implementation of which can be presented as a decision support system. This will allow regional governments to improve the effectiveness of management decisions based on monitoring the state of socio-economic systems. 

Conclusion. The methodology for managing the regional socio-economic system provides a complete management cycle: from the formalization of basic concepts to the description of the control and feedback system. The information implementation of the methodology is presented in the form of an automated product – a decision support system - that can be used in the formation of an automated workplace for civil servants. 

161-175 577
Abstract

Purpose of research. The purpose of this article is to attempt to unify the existing views of cyberphysical systems, introduce formal models of cyberphysical systems, and consider similarities and differences between this concept and related information technology concepts. 

Methods. The paper considers the existing views of cyber-physical systems, their relationship with related information technology concepts, in particular, with the "Internet of things". To solve the problem of decomposition of the visions of these systems, we used the tools of system analysis and the set theory framework. 

Results. The paper describes high-level and set-theoretic models of cyberphysical systems. The high-level system model describes the relationship between users, converters, and the logical and physical levels. Converters are the centerpiece of cyberphysical systems; they are designed to interact between logical and physical components and are sensors and agents. The set model of cyberphysical systems takes into account the possibility of exchanging energy and information between components. Besides, the paper offers a generalized dynamic model of the cyberphysical system functioning that reflects the processes of changing the state of its components under the influence of the environment and internal factors. 

Conclusion. The proposed set-theoretic model is the basis for developing and describing the behavior of cyberphysical systems. This model describes the relationship of components of cyberphysical systems and shows the impact of one of the parameters on all functional components with which this parameter is associated. Thus, in order to "intellectualize" the environment, it is necessary to develop a number of requirements that take into account the specifics of functional components and the role of users, which will allow implementing data management services based on data about the environment, user behavior, interests and preferences. 

176-188 565
Abstract

Purpose of reseach. The paper describes the EXOLITE-REHAB rehabilitation robotic complex which makes it possible to do rehabilitation exercises of lower limbs of patients by performing leg lifting, verticalization, squats and other types of movement. In many countries, research work is underway to create devices that allow a person to move in space when the musculo-skeletal system is damaged.  Therefore, the purpose of this article is to study and set the basic regularities and algorithms based on mathematical models describing the controlled movement of the lower limbs exoskeleton by the example of modeling the movement of the exoskeleton's ankle joint.

Methods. The key feature of the complex is the use of a follower-up control system that allows us to provide a prescribed movement of the human ankle joint with a high degree of accuracy in a wide range of parameters’ changes. Methods of mathematical modeling of the ankle joint movement are applied, taking into account their subsequent possible use in modeling the movement of exoskeleton links.

Results. A kinematic setting of the ankle joint movement trajectory  is used in order to simulate the operation of a robotic system. In order to find the vector of generalized coordinates, the inverse kinematics problem is solved using the vector-matrix method with the application of Jacobian matrix. The results of numerical simulation show high convergence and adequacy of the proposed method.

Conclusion. The article considers the method of using a follower-up control system that has a sufficient degree of accuracy of copying the trajectory. The results of modeling the follower-up control system of the EXOLITE-REHAB rehabilitation exoskeleton, working according to the developed algorithm, show that it is able to repeat the required trajectory with sufficient accuracy. In the future, we plan to study the system more deeply on a three-dimensional model with electric drives. 

189-209 592
Abstract

Purpose of research. The goal of research is to develop a science-based decision support system for agricultural producers to choose adaptive technologies for growing crops in the European part of Russia.

Methods. System approach, database design theory, mathematical modeling, software and information systems development theory, software qualimetry methods.

Results. The paper consistently addresses the issues of the need to digitalize agriculture, describes the results of current research on this topic, identifies areas for further research of such developments, and describes the process of creating and testing application software in stages on the example of our own research. As a result of the conducted research, a finished product has been created and tested. It is a computer program that solves not only the problem of increasing the profitability of grain production, but also ensures the environmental orientation of the technologies used, which is extremely important and relevant at the present time. The proposed software package consists of a client-server application for personal computers, a web application, a mobile application for smartphones based on the Android operating system, and two databases (for personal computers and for the online version of the application).

Conclusion. There has been created software that allows us to select the technology for cultivating the given grain crop, taking into account the prevailing soil and climatic conditions of a particular territory, and, thus,it can help to increase the profitability of grain production, ensure the environmental orientation of the applied technologies by effectively using mineral fertilizers, fuel and chemical plant protection productsand select the optimal variety or hybrid of grain crops. It can also help to choose agricultural machinery, taking into account the requirements of import substitution and preliminary calculation of the economic efficiency of the proposed agricultural technology. 

210-224 662
Abstract

Purpose of research. Reducing the time and increasing the efficiency of search and rescue of crews of land vehicles, air, surface and underwater craft. Combining physical, informational, and geometric parameters allows reliable detection of single ferromagnetic bodies by analyzing additional information in working algorithms.

Methods. The paper contains a practically significant variant of building a search engine that is implemented on two or more unmanned flying vehicles moving in the search area in a coordinated formation at the basic distance. The solution system is based on using magnetic field components as magnetometric information without using primary gradient information. This feature allows us to get compact and functionally complete algorithms. Calculations using such algorithms ensure the stability of an  unmanned flying vehicle in various combinations of vector, roll and pitch.

Results. Algorithms for the functioning of the magnetometric system for searching ferromagnetic bodies based on the magnetostatic equations have been constructed in the article,. The intelligent system is based on the scheme of a measuring and computing circuit with staggered vector three-axis blocks of magnetometers in space. The system is able to solve the whole range of problems of search, detection, direction finding, localization, positioning and identification of metal objects that have their own magnetic field.

Conclusion. The main result of the study is that the working algorithms for detecting ferromagnetic bodies take into account the characteristics of the air environment, the instrumental error of measurement units of physical quantities and  the geometric proportions of measuring equipment  location  on board the unmanned and manned search and rescue helicopters. The obtained research results have been used in the development of a hardware and software complex with helicopter-type unmanned flying vehicles designed to support search and rescue operations in the Arctic.

225-240 488
Abstract

Purpose of reseach. The article presents the development of the model-algorithmic support for the process of determining the speech activity of a user of a socio-cyberphysical system. A topological model of a distributed subsystem of audio recordings implemented in limited physical spaces (rooms) is proposed; the model makes it possible to assess the quality of perceived audio signals for the case of distribution of microphones in such a room. Based on this model, a technique for determining the speech activity of a user of a socio-cyberphysical system, which maximizes the quality of perceived audio signals when a user moves in a room by means of determining the installation coordinates of microphones has been developed.

Methods. The mathematical tools of graph theory and set theory was used for the most complete analysis and formal description of the distributed subsystem of the audiorecording. In order to determine the coordinates of the placement of microphones in one room, a relevant technique was developed; it involves performing such operations as emitting a speech signal in a room using acoustic equipment and measuring signal levels using a noise meter in the places intended for installing microphones. 

Results. The dependences of the correlation coefficient of the combined signal and the initial test signal on the distance to the signal source were calculated for a different number of microphones. The obtained dependences allow us to determine the minimum required number of spaced microphones to ensure high-quality recording of the user’s speech. The results of testing the developed technique for determining speech activity in a particular room indicate the possibility and high efficiency of determining the speech activity of a user of a socio-cyberphysical system.

Conclusion. Application of the proposed technique for determining the speech activity of a user of a sociocyberphysical system will improve the recording quality of the audio signal and, as a consequence, its subsequent processing, taking into account the possible movement of a user. 

241-255 580
Abstract

Purpose of research. The purpose of this study is to assess the potential of applying information technology, in particular mobile multifunction devices, as an additional type of control of harmful production factors in the field of labour protection.

Methods. One of the main techniques used in this study is an experiment involving laboratory measurements of the level of artificially created production noise using a mobile multifunction device (smartphone) with pre-installed utilities and a calibrated device ‒ noise meter, and subsequent comparison of the results. The measurements were carried out in accordance with the methodological guidelines developed specially for mobile multifunction devices (MMFDs) by the authors. 

Results. An analysis of the results obtained made it possible to assess the possibility of applying mobile multifunction devices in monitoring harmful factors in the work environment. While conducting the research, it was found that it is possible to use MMFDs in the occupational safety management system of the enterprise, since the deviations of the obtained values from the values of the calibrated noise meter adopted as the standard are insignificant. According to the results of the study, a flow diagram for the use of mobile multifunctional devices in occupational safety management systems of  an enterprise was developed. 

Conclusion. Thus, the use of MMFDs as an additional means of controlling the parameters of the production environment from the theoretical point of view is possible. It should be noted that in practice, application of MMFDs in the occupational safety management system will be challenging from legal and methodological viewpoints. The most basic problem is that MMFDs are not registered in the State Register of Measuring Equipment as measuring tools, which does not allow the official use of the data obtained. However, application of mobile multifunctional devices in the field of labour protection will ensure rapid collection of information on changes in indicators of harmful factors in the work environment, and as a result, will make it possible to quickly respond to these changes, which will significantly reduce the risk of accidents and occupational diseases. 

256-270 440
Abstract

Perpose of research is to develop a technique for developing system and local models of targeted processes of functioning of the subsystem of the receiving channel of an information-measuring system. These models should make it possible to substantiate the possibility of optimizing the processes of interaction of the components of the analog-discrete conversion of the input action of a random nature.

Methods. The technique for obtaining measurement information in the information-measuring system involves the use of algorithms that minimize information loss at each stage of conversion of the input action. A possible approach is the use of rational and optimal solutions when selecting and substantiating functional support of the input action ),,( St  in order to obtain current measurement information while minimizing residual uncertainty.

Results. To solve this problem, it is necessary to build a system model for the totality of the basic functions that determine the implementation of the targeted process of analog-discrete conversion ) ,,( S t  ; to substantiate the way these functions are implemented, the criteria for their interaction; to determine the optimization technique and (or) rational construction of local targeted processes; to prepare guidelines and rules for structural constructions of the subsystem of the information-measuring system, the input actions of which have priori unknown characteristics. The paper proposes an approach to the functional organization of analog-discrete conversions of the input action of a random nature in the receiving channel subsystem of an information-measuring system, which allows improving the quality of the receiving channel of the information-measuring system and the operation of its components by optimizing the interrelated targeted processes for detecting pulse signals and measuring their parameters against the background of noise with a priori unknown characteristics.

Conclusion. The application of procedures for temporary selection of signals controlled by the detection channel allows increasing the speed and accuracy of determining their parameters, increasing the noise immunity of the receiving channel subsystem of the information-measuring system, reducing the probability of skipping weak signals as well as increasing the accuracy of measuring the temporal parameters of pulse signals. 



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ISSN 2223-1560 (Print)
ISSN 2686-6757 (Online)