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  • A simulation model of interests coordination in the system of continuing professional education

    A game-theoretic dynamic model of social partnership in the system of continuing professional education is proposed and investigated in the simulation mode on the base of scenario method. The processing of modeling data includes a comparative analysis of state variable and payoff functionals. Results of the model identification and investigation based on simulation modeling are considered. A comparative analysis of egoistic and cooperative approaches to the social partnership is conducted.

    Keywords: social partnership, continuing professional education, simulation modeling, identification, difference games

  • Issledovanie temperaturnyh zon absorbcionnoj kolonny v processe ochistki serougleroda

    Stat'ja posvjashhena issledovaniju temperaturnyh zon absorbcionnoj kolonny v processe ochistki serougleroda. Issledovanie provoditsja na osnovanii rasschitannyh linii regressii dlja kazhdoj iz 3 temperaturnyh zon absorbcionnoj kolonny. Ishodja iz poluchennyh dannyh, delaetsja vyvod o stepeni vlijanija kazhdoj iz issledovannyh temperaturnyh zon na kachestvo regulirovanija dannogo processa v celom.

    Keywords: Serouglerod, absorbcija, regressija, absorbent, shkala Cheddoka, temperaturnaja zona, avtomatizacija, temperatura, matematicheskoe ozhidanie, dispersija

  • Remained work time forecasting of oil and gas extraction equipment with application of artificial neural networks technology

    In the article method based on application of artificial neural networks for forecasting of the remained work time on the basis of equipment operational condition analysis is considered. Transformation of telemetric data with application of a generalized Veibull distribution function had reduced influence of noise factors. Validation mechanism is introduced for increase of forecasting accuracy and definition of conditions of neural network training end. A comparative study is performed between the proposed method and known one. The results demonstrate the advantage of the proposed method in achieving more accurate remained work time prediction.

    Keywords: artificial neural network, forecasting, remaining work time, Veibull's distribution, oil and gas extraction equipment

  • Forming structure of an integral analog front-end for smart vibration sensor

    Today developing specialized microelectronics in Russia is an actual problem because many components are absent on the open market, and also because import substitution is a vital task. One can’t make front-end products just by copying, new electronic components must be developed. These components needed in real production sector of economics. One must be aware that to develop the product with competitive ability only some universal scheme must be realized. Nowadays the market is being overpopulated by different smart sensors: temperature, gas, ph-metering. These products are used in different sectors of economics from smart houses making to heavy machinery production. World market has specialized electronics for signal conditioning called analog front-end (AFE). Usage of these components allow to make end-products of significantly smaller size, and also to make their self-cost lower. Smart vibration sensors do not have its AFEs today, so the problem of minimizing their size is not solved. To develop such electronics one need to form a basic structure of AFE suitable for all vibration measurement. For the basis for this structure can be used the structure of a sensor itself, and products already put to market could be used for an example of such electronics. There are certain differences between present AFEs and needed ones for smart vibration sensors. Most of differences concentrated in the input schemes and ADC.

    Keywords: smart sensor, analog front-end, microelectronics, vibration sensor, piezoelectric element, signal conditioning

  • Design of small power supply systems on the basis of renewables

    In article the main aspects of design of small power supply systems on the basis of renewables, questions of their introduction in the existing power supply system of the country and feature of this process are considered. The main actions for increase of efficiency and optimization of structure of renewables are considered.

    Keywords: renewables, design, assessment, planning, energy efficiency, monitoring, forecasting, development prospects

  • Research of devices of registration of ionic current in the combustion chamber

    In article the comparative analysis of various versions of circuitry solutions of realization of devices of registration of ionic current, is made, theoretical justification of almost known advantages and shortcomings of the considered devices. In article are given the experimental data obtained at registration of a signal of ionic current by various devices. Is made processing of oscillograms and shown qualitative advantage of the device of registration of ionic current with the stabilized boost converter for the solution of problems of registration of a signal of ionic current with increased requirements to quality of a signal.

    Keywords: internal combustion engine, signal of ionic current, energy, spark discharge, device of registration

  • Development of IOS mobile application with the use of iBeacon wireless technology for navigation inside buildings.

    The article describes the iBeacon technology, its possible applicability, as well as the development of mobile applications for navigation inside buildings.

    Keywords: wireless networks, sensors, navigation, iBeacon

  • The new integrated solutions for developing energy collectors from the environment

    The article discusses the relevance of the problem of transition to the power required services, in particular for wireless sensor biophysiological and other types of signals. As a solution to the problem given the process of collecting energy from the environment. Presents a number of electronic components, mass-produced different manufacturers to develop devices powered by energy collectors. It is shown that at present there is a high rate of development of integrated solutions for building energy collectors of various types.

    Keywords: wireless sensor, energy collector, integral solution, power consumption, biophysiological signal

  • Inertial module as an important component of the mobile complex of ergometery

    This article discusses aspects of the registrar accelerations and angular velocities to determine the power that develops a person while driving. Knowledge of this power with the simultaneous recording of electrocardiogram and possibly electromyogram lower limb muscles allows a comprehensive evaluation of the cardiovascular system. The use of inertial modules in modern cardiomonitors will significantly expand the diagnostic capabilities hidden ischemia in the early stages of the disease.

    Keywords: inertial unit, walking, sensors, angular rate sensor, accelerometer, developed capacity, orientation of a rigid body, the quaternions

  • Implementation and experimental investigation of the control unit of actuators for autonomous marine vehicle "Neptune"

    The article discusses the design of microcontroller control unit for actuators of marine vehicle "Neptune". Functions of the control unit and its interconnections with the other functional elements of the vehicle is described. Emergency remote control mode is presented in details. Paper contains description of hardware and software implementation of the control unit. The efficiency of the proposed design is proved by the results of experiments in which authors measured dependencies between the parameters issued by the autopilot and the appropriate control signals applied to the actuators of autonomous vehicle.

    Keywords: control unit, actuators, control system, microcontroller board, remote control.

  • Simulation of the fuzzy direct torque control for induction motor drive in Simulink

    • Abstract
    • doc (rus)
    • pdf (rus)
    • registration number: induction motor, direct torque control, fuzzy logic controller, ripple

    Two different methods for direct torque control (DTC) of induction motor are analyzed. The first one is derived from well-known DTC strategy developed for voltage inverter drives. This type of control basically uses hysteresis type controllers for torque and flux. The decoupling of the torque and flux components is accomplished by using hysteresis comparators, which compares the actual and estimated values of the electromagnetic torque and stator flux. The torque and flux estimated values are calculated based on the sampled motor’s terminal variables, i.e. stator voltages and currents. Output of these comparators, together with the stator flux orientation, are used to select the appropriate voltage vectors of a three phase voltage source inverter. The other DTC method, proposed in the paper, is based on fuzzy logic concept , where fast torque response with low ripple in the torque of induction motor can be achieved. In this technique, the hysteresis comparators, used in basic DTC, are replaced by the fuzzy logic controllers. Takagi – Sugeno fuzzy algorithm are used to approximate nonlinear functions. In comparison with the conventional DTC simulation results clearly demonstrate a better dynamic and steady state performance with the fuzzy logic DTC. The performance of the proposed drive systems evaluated through digital simulation using MatLab package with Simulink blocksets. Also, MatLab/Fuzzy toolbox is used to implement the fuzzy logic controller. Both systems are simulated under the same conditions.

    Keywords: асинхронный двигатель, прямое управление моментом, нечеткий регулятор, флуктуации,

  • Hall gradiometer

    The article deal with gradiometer is designed for remote nondestructive testing of various purposes pipelines. Gradiometer sensor consists of two Hall-effect transducers three-component magnetic field placed at a distance of 1950 mm from each other. The specialized algorithm for reducing transducer’s bias error is used. The gradiometer sensor’s orientation relative to the pipe axis is determinate by the digital microelectromechanical system. The results of measuring the gradient of the magnetic field induction, module, and the coordinates of the sensor are displayed on the LCD display and saved on non-volatile storage.

    Keywords: magnetometry, nondestructive testing, gradient of the magnetic field, the Hall sensor, magnetometer, gradiometer, magnetogram

  • Influence of ranking factors on site positions in search engines

    The article describes the main factors ranking sites by search engines. Using and analysing of these factors by developers of the sites gives to the high positions in results of delivery of search engines. Three groups of factors are specified and examined in the article: internal ranking factors, external ranking factors and behavioral ranking factors. The giving example of search engine ranking pages of Yandex and Google for the developed site consider these factors.

    Keywords: the ranking factor, the sorting sites, the search engine optimization, the search engine, site optimization, Internet

  • Analysis subsystem group synchronization in phase and asinfaznom modes broadband radio communication system with pulse-width modulation

    Objects of research are methods of distinguishing modes of synchronization subsystem group, and the purpose of the work - study group synchronization subsystem wideband radio system with pulse-width modulation. As a result, performance is defined threshold mode decision subsystem group synchronization in accordance with the criterion of minimum average risk. In the article investigated the modes of synchronization subsystem group. Chosen to describe the probability distribution asinfaznom mode and common-mode subsystem group synchronization. The parameters of the probability distribution in the two modes of the subsystem and verify compliance naedennyh theoretical descriptions of probability distributions with the empirical probability distributions of single series with the theoretical distribution. On the basis of naedennyh distribution laws was set threshold mode decision

    Keywords: subsystem, broadband system, the probability distribution, group synchronization

  • Highly mobile transponder timing system

    The article describes an alternative approach to the construction of the transponder timing systems. Describes the proposed approach to the creation of a highly mobile system, the basic principles of its operation and the analysis of experimental results

    Keywords: transponder timing systems, time-stamping, wireless tags, specialized communication protocols

  • The analysis of the analog characteristics of circuits ADS1293 for application in medical technology

    In this article the testing of analog characteristics of AFE-circuits ADS1293A on measuring stand are presented. The analysis of the characteristics of the chip to be used in medical equipment.

    Keywords: AFE-chip, Holter monitor, cardiograph, testing energy, medical equipment

  • Study the possibility of using the accelerometer to control the medical device with battery

    In this article the question of the possibility of using the accelerometer to control the medical device. The analysis of existing models for this purpose. Then made ​​all the necessary tests at the research booth

    Keywords: accelerometer, taping, tap-tap, LIS2DM, ADXL345, MMA8450Q, medical equipment, self-powered

  • The use of a multi-segment model of the spatial characteristics of the transformation to improve the accuracy of measurements hot-wire gauges liquid flow rate

    To achieve high accuracy of measurement of liquid flow rate using the hot-wire gauges are encouraged to use multi-segment method of spatial characteristics of the transformation. The method is based on the nonlinear three-dimensional elements. Model the spatial characteristics of the transformation is maximally adapted to the peculiarities of the conversion function of the primary transmitter. Model repeats its spatial form with the non-linearity, zero drift, the influence of external factors, including temperature. This provides a low error rate calculation of flow. Study of the effectiveness of the method was based on experimental data obtained during the calibration at different temperatures. Maximum reduced measurement error does not exceed ~ 0.45% at an arbitrary temperature, recorded during measurement.

    Keywords: thermoanemometric meter spatial multi segment conversion characteristic, the error rate of fluid flow, the approximation method of least squares

  • Changes in the structure of the magnetic field MPFS TWT by external corrective action

    This article describes new method of correction of magnetic field MPFS TWT. The method allows controlling the magnetic induction instead of the current coefficient of retarding system. This approach reduces time and increases quality of correction. The key point of the method is in controlling of magnetic field on the assembly stage. The iteration algorithm of correction was developed. It is necessary to remember the coordination of the point, which need to be corrected. After measurement the researcher will know the result of influence of correction, which he or she applies to the system. In such way all magnetic system need to be controlled. This article represents the result of this approach and shows its benefits and lacks.

    Keywords: periodic magnetic focusing system, a traveling wave tube, the magnetic field, the electron beam

  • Problems of integration of wind power in the unified energy system of Russia

    The article discusses the innovative technology of increasing energy efficiency of wind power station. Also addresses the issue of stabilization of wind generator power at variable wind velocity. The key idea of research consists in reduce losses in the system of generation (quick-response induction machine) and power conversion (voltage source converter) obtained from the wind turbine. Control system was developed for wind turbine, consisting of two control loops: pitch control and direct torque control. Using of direct torque control system of the quick-response induction machine moment is offered for stabilization of wind generator output power. At the same time, the pitch control of the blades wind turbine used to restrict the allowable range for the generated power. Proposed control system allows to increase the production of the power generated by the wind turbine.

    Keywords: wind power systems, wind turbines, quick-response induction machine, horizontal axis wind turbine, direct torque control, voltage source converter, high voltage direct current

  • Program realization of calculation unit jet system measuring the temperature of the gas flow

    In the article describes the program realization of calculation unit pneumatic measuring system. The program is implemented in the languages ​​of IEC: CFC and ST. Algorithm written with the possibility of future use in systems that differ from described in the article. The developed algorithm allows to measure temperature directly using computing power PLC and get the result in the final form, without any changes on the part of the operator.

    Keywords: pneumatics, temperature, airflow, algorithm of temperature measuring, temperature measurement, Codesys, CFC, ST

  • Diagnosis of the logic element DC LUT FPGA

    In this paper a modification of logic element DC LUT FPGA is proposed for the purpose of the acceleration of diagnostics. Simulation of proposed modification was performed in the system NI Multisim 10 by National Instruments Electronics Workbench Group. Evaluation of hardware costs is also given.

    Keywords: logic element, DC LUT, FPGA, diagnosis, reliability

  • Simulation and method of classification of technical condition of the high-voltage mekhatronics modules

    Simulation and method of classification of technical condition high-voltage the mekhatronics of modules of the movement, allowing by results of control of electrodigit activity and skrednekvadratichesky value of vibrospeed are presented, to refer current state of object to one of classes of diagnoses

    Keywords: High-voltage mekhatronics module, fuzzy-model of classification of technical condition, electrodigital activity, vibrospeed

  • Principles of Programming controllers FBD language

    To improve the quality of developed software for the controller is proposed to take into account the principles of programming in FBD and CFC. Gives practical recommendations for the use application of. Especially, this approach is acquitted for complex systems of automatic control and regulation of high risk. The proposed method reduces the requirements for qualification of personnel, increases productivity in extreme situations, reduces the possibility of errors in the adjustment programs.

    Keywords: Programming principles, identity numbering algoblocks similar algorithms, the in-between software cleat, the principle of non-rigid numbering, quality and reliability of software.

  • Development of electrooptical device for analysis of motor oil contamination of the internal combustion engine with disperse particles

    A new device is offered for the analysis of motor oil contamination of the internal combustion engine with dispersed particles. Optical and ultrasonic methods for analyzing contamination of motor oils are used to obtain more informative data to estimate the concentration of pollutants in the device.  

    Keywords: tribomonitoring, electrooptical device, the internal combustion engine, motor oils, methods for analyzing contamination