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2020 International Russian automation Conference, RusAutoCon 2020

作者： Yukhimets, Dmitry Sych, Alexander Sakhnenko, Andrey Institute of Automation and Control Processes Feb Ras Laboratory of Robotic Systems Vladivostok Russia Institute of Marine Technology Problems Feb Ras Laboratory of Intelligent Control Systems Vladivostok Russia Far Eastern Federal University Department of Automation and Control Vladivostok Russia

ISBN: (纸本)9781728161303

A new approach to the implementation of open distributed automatic control systems based on use of cheap computing nodes from the manufacturer Espressif, exchanging data via the ESP-NOW wireless protocol, is proposed. Due to the used data transfer protocol, it became possible to quickly and losslessly transfer data packets between computing nodes, which favorably affected the operation of the entire system as a whole. The solution proposed in the work allows the use of distributed automatic control systems (ACS) to control complex mechatronic objects, such as industrial manipulators, and allows location of computing nodes at remote points in the workspace. This fact is confirmed by the performance indicators obtained during testing of a real system. The paper proposes the basic architecture of such a system and describes the features of the implementation of individual nodes, presents diagrams of the classes of microprograms contained in computing nodes. © 2020 IEEE.

关键词： Distributed parameter control systems

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Universal algorithm for scanning probe microscopy images grain analysis of objects on the surface

Universal algorithm for scanning probe microscopy images gra...

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2017 IEEE International Conference on Cyber Conflict U.S., CyCon U.S. 2017

作者： Balagan, Semyon Chusovitin, Evgeniy Goroshko, Dmitry Goroshko, Olga Institute of Automation and Control Processes FEB RAS Vladivostok Russia Vladivostok State University Economics and Service Vladivostok Russia

ISBN: (纸本)9781538612064

Currently, scanning probe microscopy (SPM) is actively used to obtain surface data. A large number of images require a fast and high-accuracy calculation of the topographic parameters of particles on the surface. The original grain analysis algorithm based on finding a local maximum is realized by sorting an array of points forming the topography of the SPM image surface. It provides to determine various topographic characteristics of objects located on a surface (height, lateral dimensions, area, volume, etc.) © 2017 IEEE.

关键词： Scanning probe microscopy

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Optimizing algebraic and neural methods for information processing in distributed fiber-optical measuring systems

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Optical Memory and Neural Networks (Information Optics) 2010年第3期19卷 237-247页

作者： Kulchin, Yu.N. Zakasovskaya, E.V. Institute for Automation and Control Processes FEB RAS ul. Radio 5 Vladivostok 690041 Russia Far-Eastern State University 8 Suhanova st. 690000 Vladivostok Russia

The paper discusses tomography reconstruction of distributed physical fields by means of fiber optical measuring systems (FOMN) [1] for parallel setup of measuring lines with a small number of scanning directions. The approach whose novelty involves measuring network geometry optimization for further application of neural or algebraic technologies to restore a full image of the functions studied is presented. An alternative to choose and apply an appropriate neural network from the set of several, previously trained neural networks of radial-basic type is investigated [2]. © 2010 Allerton Press, Inc.

关键词： Radial basis function networks

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Method of combination of three-dimensional models of details with their CAD-models at the presence of deformations

Method of combination of three-dimensional models of details...

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2016 IEEE International Conference on automation Science and Engineering, CASE 2016

作者： Filaretov, Vladimir F. Yukhimets, Dmitry A. Zuev, Alexander V. Gubankov, Anton S. Mursalimov, Eduard Sh. Robotics Laboratory Institute of Automation and Control Processes FEB RAS Far Eastern Federal University Vladivostok690041 Russia

ISBN: (纸本)9781509024094

In this work the combination method of three-dimensional models of processed details with their reference CAD-models when these details have unknown in advance deformation is proposed. This method assumes preliminary transformation of models to clouds of points, special density increasing of these clouds and their iterative combination by means of ICP (Iterative Closest Points) algorithm. Model example demonstrates the efficiency and effectiveness of proposed approach. © 2016 IEEE.

关键词： Deformation

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Artifacts suppression in limited data problem for parallel fiber optical measuring systems

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Optical Memory and Neural Networks (Information Optics) 2009年第3期18卷 171-180页

The paper discusses tomography reconstruction of distributed physical fields by means of fiber optical measuring systems (FOMN) [1] for parallel schemes of measuring lines stacking with a small number of scanning directions. This work considers the sampling theory for a case with sampling sets which are unions of two co-sets. The case of non-equidistant sampling requires application of new approaches, namely the generalized sampling theorems with group-theory basis. An explicit reconstruction formula for extracting additional (missing or distorted) projection data values are provided, using approximating of a projection function on a non regular grid. Furthermore, standard restoration algorithms are applied to this function. Two restoration methods are proposed, UQC 1 (union of quotient classes), and UQC 2. Comparative analysis of the operating efficiency of UQC 1 and UQC 2 methods versus standard analytical FBP method for fiber-optical tomography reconstruction is reported. © Allerton Press, Inc., 2009.

关键词： Restoration

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Luminescent Properties of Nanocomposites Based on Porous Silicon, Nickel, and Nickel Oxide in the Photon Energy Range of 1.4 - 2.9 eV

Luminescent Properties of Nanocomposites Based on Porous Sil...

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2022 International Conference on Electrical Engineering and Photonics, EExPolytech 2022

作者： Galkin, Nikolay G. Yan, Dmitrii T. Galkin, Konstantin N. Nepomnyaschiy, Aleksandr V. Goroshko, Dmitrii L. Institute of Automation and Control Processes of Feb Ras Optics and Electrophysics Laboratory Vladivostok Russia Far Eastern State Transport University Department of Physics and Theoretical Mechanics Khabarovsk Russia Institute of Automation and Control Processes of Feb Ras Laboratory of Laser Methods for Studying Substances Vladivostok Russia

ISBN: (数字)9781665490306

ISBN: (纸本)9781665490306

This paper presents the results of studying the effect of time (5, 6, 7, and 8 minutes) of nickel electrodeposition (Ni ED) at room temperature and annealing at 450°C in an argon atmosphere on the structure, composition, and photoluminescent (PL) properties of mesoporous silicon (meso-PS) and its nanocomposite with Ni (meso-PS/Ni). The SEM and EDX spectroscopy data showed the predominant concentration of Ni on the surface and an insignificant concentration in the near-surface region of the meso-PS. According to Raman and PL spectroscopy data, it was established that after Ni ED in a NiCl2 solution, nickel sub oxide (NiOx) with a band gap of up to 2.8 e V is formed in the meso-PS surface layer, which, after short-term annealing (5 and 6 min), is transformed into nickel monoxide nanocrystals (NiO), which leads to a strong (0.2 - 0.9 eV) 'blue' shift of the PL maximum (2.4-2.6 eV) of the nanocomposite with meso-PS/Ni with a multiple increase in the PL amplitude. With an increase in the time of Ni ED and storage in air, NiOx, is not formed, and the detected significant (2-18 times) increase in the PL amplitude with a small 'red' shift of 0.05-0.1 eV is presumably associated with the formation of radiative recombination centers in the form of ions Ni in the meso-PS matrix. Annealing in argon in this case leads to a decrease in the PL intensity without shifting the PL maxima. © 2022 IEEE.

关键词： Digital storage

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Parallel implementation of algorithm for calculation of gas flow through porous media with heat sources

Parallel implementation of algorithm for calculation of gas ...

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作者： Lutsenko, N. Miroshnichenko, T. Odyakova, D. Kharitonov, D. Institute of Automation and Control Processes FEB RUS Russia

A parallel computational algorithm for researching of two-dimensional (plane and axially symmetric) unsteady gas flows through a porous media of complex shape with energy sources has been developed. It has been shown that object-oriented approach made it possible to develop a distributed computational algorithm and to automate definition assignment of the object geometry without essential changes of code. Calculations have been carried out on the multiprocessor computer MPC-15K. The parallel algorithm efficiency has been analyzed.

关键词： Flow of gases

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MATLAB using in software for visual simulation of multilink manipulators dynamics

MATLAB using in software for visual simulation of multilink ...

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作者： Filaretov, V.F. Yukhimets, D.A. Mursalimov, E.Sh. Institute of Automation and Control Processes FEB RAS Radio str. 5 690041 Vladivostok Russia

This work is dedicated to development of integration method of Matlab and external program for visualization of multilink manipulator movement in order to create the simulating complex for investigation of their control systems. It is offered to use the UDP protocol for data transmitting between Matlab and external program. But in this case we must solve the synchronization task for calculation processes of Matlab and external program. In this paper the algorithm of automatic synchronization of above-noted processes is offered. This algorithm is based on using of methods of automatic control theory. Carried out calculation experiments completely confirm the workability and efficiency of offered approach.

关键词： Visualization

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The method of identification of 2D-→-3D phase transition

The method of identification of 2D-→-3D phase transition

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作者： Dotsenko, S.A. Galkin, N.G. Chusovitin, E.A. Department of Surface Science Institute for Automation and Control Processes FEB RAS 5 Radio Str. Vladivostok 690041 Russia

In the article the method of identification of 2D-→3D structure phase transition developed for differential reflection spectroscopy is presented. This phase transition was shown to be accompanied by non-linear dependence of differential reflectance R/R versus deposited film thickness h. Formulas were derived for calculation of optical function of 2D and 3D structures involved in phase transition. Use of method for Cr/Si(111) system resulted in obtaining new information about Cr film growth. © 2009 The Surface Science Society of Japan.

关键词： Chromium

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Development of synthesis method of functional diagnostic system for thrusters of underwater vehicles 23rd

Development of synthesis method of functional diagnostic sys...

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23rd International Conference on Climbing and Walking Robots and the Support Technologies for Mobile Machines, CLAWAR 2020

作者： Zuev, Aleksander Zhirabok, Alexey Institute of Automation and Control Processes FEB RAS 5 Radio str Vladivostok690041 Russia Institute of Marine Technology Problems FEB RAS 5a Sukhanov str Vladivostok690091 Russia

ISBN: (纸本)9781916449046

This paper presents a new synthesis method of functional diagnostic system for thrusters of underwater vehicles (UVs). This system provides detection, localization and identification of minor faults in thrusters of the UV. Proposed method involves two main stages. At the first stage, a bank of diagnostic observers is built to detect and localize the emerging faults. At the same time, each observer is constructed according to a special procedure in such a way as to be sensitive to a different set of the possible faults. At the second stage, the additional observers working in a sliding mode regime are synthesized in order to accurately estimate error values in signals obtained from the UV thruster sensors, and to evaluate deviations of the thruster parameters from their nominal values due to the faults. The results of the simulation show the efficiency and high quality of all synthesized observers. © CLAWAR Association Ltd.

关键词： Fault detection

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