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Study of the Applicability of the Method of Optical Triangulation for Evaluation of the Geometric Parameters and Cleanliness of the Surface of Products of Complex Shapes 7

Study of the Applicability of the Method of Optical Triangul...

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7th International Conference on Information, control, and Communication Technologies, ICCT 2023

作者： Konyashov, Vyacheslav V. Sergeev, Alexey S. Kolganov, Oleg A. Fedorov, Alexey V. Konyashova, Kseniya A. Bychenok, Vladimir V. Itmo University Faculty of Control Systems and Robotics ST Petersburg Russia Scientific and Technical Center 'Etalon' ST Petersburg Russia Institution of Science 'IKCSEKT' ST Petersburg Russia

ISBN: (纸本)9798350340945

The results of experimental studies of the applicability of the method of optical laser triangulation for constructing the profile of conical and cylindrical products with a ribbed surface, made by milling, are reflected. An algorithm for constructing a geometric profile of products of complex shape based on a system of triangulation sensors is proposed. The results of experimental approbation of the proposed algorithm on the stand for automated control of the geometry of complex-profile parts using a laser triangulation 2-D scanner are presented. The sensitivity of a laser triangulation 2-D scanner to the roughness parameters during milling the surface of products is evaluated. The accuracy characteristics of the triangulation method for determining the surface roughness parameters for different orientations of laser radiation with respect to the test object are estimated. © 2023 IEEE.

关键词： Nondestructive examination

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Analysis of fast prototyping of microcontroller-based ML software for acoustic signal classification 26

Analysis of fast prototyping of microcontroller-based ML sof...

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26th IEEE Signal Processing: Algorithms, Architectures, Arrangements, and Applications, SPA 2023

作者： Marciniak, Filip Marciniak, Wojciech Marciniak, Tomasz Poznan University of Technology Faculty of Computing and Telecommunications Poznań60-965 Poland Poznan University of Technology DECYBEL Science Club Poznań60-965 Poland Poznan University of Technology Faculty of Automatic Control Robotics and Electrical Engineering Institute of Automatic Control and Robotics Division of Electronic Systems and Signal Processing Poznań60-965 Poland

ISBN: (纸本)9798350304985

The paper analyzes the preparation of software for acoustic signal classification with machine learning techniques for microcontrollers. The design process was tested for three types of devices: Nordic Thingy:53, *** and Arduino Nano 33 BLE Sense Lite. The classifier training process was carried out using the Edge Impulse platform. Experimental studies were carried out for the process of classifying sound signals generated by the vacuum cleaner motor. The results of the training and the model test were presented for different configurations. © 2023 Division of Signal Processing and Electronic systems, Poznan University of Technology (DSPES PUT).

关键词： Microcontrollers

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Robust Finite-Time Stabilization of Linear Descriptor systems

Robust Finite-Time Stabilization of Linear Descriptor System...

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Mediterranean Conference on control and Automation (MED)

作者： Dmitry Konovalov Artem Kremlev Konstantin Zimenko Dmitrii Dobriborsci Faculty of Control Systems and Robotics ITMO University Deggendorf Institute of Technology (Technology Campus Cham)

ISBN: (数字)9798350395440

ISBN: (纸本)9798350395457

The paper is devoted to the problem of robust finite-time control design for linear descriptor systems. The proposed homogeneity based control does not require system transformation to a canonical form and guarantee finite-time convergence in the presence of additive disturbances. The parameters tuning is based on the solution of linear matrix equations and inequalities.

关键词： Robust control Radio frequency Additives Automation control design Linear matrix inequalities Tuning

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Structural simulation of devices based on patent descriptions

International Journal of Systematic Innovation

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International Journal of Systematic Innovation 2023年第5期7卷 1-9页

作者： Bushuev, Alexandr Chepinskiy, Sergey Lin, Weijie Zhang, Botao Wang, Jian Faculty of Control Systems and Robotics ITMO University Saint Petersburg Russian Federation School of Automation Hangzhou Dianzi University Hangzhou China HDU-ITMO Joint Institute Hangzhou Dianzi University Hangzhou China

The problem of the interaction of patent law and TRIZ is considered in this paper. A su-field analysis is applied from TRIZ tools. The European claim of the invention is used to describe the device. The claim is divided into technical features for structural simulation. Binary relationships are introduced between features to build hierarchy levels. As a result, an oriented graph is obtained, the nodes of which are features, and the branches show the subordination of features. The elements are at the top level, and the connections between them are at the middle level. The properties of elements and links are at the lower level. The physical operating principle of the device from the patent description is used for the numerical evaluation of the structure. At the middle level of the hierarchy, features of interaction between elements are replaced by mechanical, thermal, electric, and magnetic fields from the Su-field analysis. Further, the inventive fields are replaced by the dimensions of the physical quantities in which the fields are measured. For example, the dimensions of ampere, volt, watt, and coulomb are used for electric fields, depending on the specific design of the device. The dimensions of physical quantities are given in the Bartini basis with two basic units time T and space L. Two-dimensional diagonal matrices are introduced to describe the weights of graph branches. A weighted and oriented graph mathematically describes the structure of the claim. The purpose of the simulation is to calculate the resource intensity of the claim structure, as well as a numerical comparison of the novelty of the claims with the prototype. The novelty coefficient is determined by the degree of asymmetry of the new solution and the prototype. The symmetric part is the inventive features included in the restrictive part of the claims. The inventive features included in the characteristic part form the asymmetry of the claims. © 2023, International Journal of Systematic Inn

关键词： claims in the invention novelty simulation Su-field analysis

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Robust Visual-Inertial Odometry for Ground Robots in Dynamic Environments

Robust Visual-Inertial Odometry for Ground Robots in Dynamic...

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Saint Petersburg International Conference on Integrated Navigation systems (ICINS)

作者： Andrey Penkovsky Malik Mohrat Jaafar Mahmoud Sergey Kolyubin Faculty of Control Systems & Robotics ITMO University Saint Petersburg Russia

This paper introduces a novel approach to improve robustness of visual-inertial odometry for ground mobile robots in dynamic environments. The proposed approach extends a standard Visual-Inertial Navigation System with weighted least squares state estimation problem using alternating factor graph optimization. Additionally, we establish a reliability model for visual landmarks based on semantic prior knowledge of the scene. The robustness of our approach is validated on real-world experiments and evaluation results show stable and accurate state estimation in high-dynamic environments.

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Research on the Impact of Different controllers on the Adapative Cruise control System

Research on the Impact of Different Controllers on the Adapa...

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International Russian Automation Conference (RusAutoCon)

作者： Leila Suleiman Sergei Vlasov Control Systems and Robotics Faculty ITMO University Saint-Petersburg Russia

Adaptive Cruise control (ACC) system is a well-known Advanced Driver Assistant systems (ADAS) that offers safe, comfortable, and fuel-efficient self-driving capabilities. It utilizes a combination of hardware and software to follow other vehicles, effectively. While the design and control of this system are complex, its user interface ensures ease of use and understanding. This paper aims to demonstrate the application of different control algorithms with the ACC system. Firstly, it introduces the Model Predictive controller (MPC), Levenberg-Marquardt Neural Network (LM NN), Bayesian Regularization Neural Network (BR NN), and Scaled Conjugate Gradient Neural Network (SCG NN). Subsequently, the paper presents a practical implementation of these three neural networks in conjunction with the Classical ACC controller. The performance of MPC with these three emulated neural networks is then evaluated. Finally, the paper concludes by establishing an evaluation and summary of the performance of these controllers.

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Compensation of External Disturbances for MIMO systems Using Decoupling Model

Compensation of External Disturbances for MIMO Systems Using...

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Electrical Engineering, Automation & control systems, Theory and Practical Applications (EEACS), Seminar on

作者： Duc Long Hoang Natalia Dudarenko Faculty of Control Systems and Robotics ITMO University Saint Petersburg Russia

The compensation problem of external disturbances for MIMO systems with feedforward control (combined control) is considered in the paper and the main problems of pole-placement technique application to interconnected multivariable systems are discussed. The compensation problem is solved using decoupled model principle and compensators are designed with measured or unmeasured state variables based on Sylvester equations and state observers. The results are supported with illustrative examples.

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Compensation of External Disturbances for Linear MIMO systems Using Balanced Model Representation

Compensation of External Disturbances for Linear MIMO System...

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IEEE International Conference on control in Technical systems (CTS)

作者： Duc Long Hoang Natalia Dudarenko Faculty of Control Systems and Robotics ITMO University Saint Petersburg Russia

The compensation problem of external disturbances for MIMO systems with feedforward control (combined control) is considered in the paper. The compensation problem is solved using balanced model representation, and the compensator is designed with measured or unmeasured state variables based on the Sylvester equation and the state observer. The effectiveness of the proposed method is illustrated by examples.

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Development of an Algorithm for the Movement and Adjusting Measuring Transducers of an Automated Non-Destructive Testing System

Development of an Algorithm for the Movement and Adjusting M...

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Information, control, and Communication Technologies (ICCT), International Conference on

作者： Valeriy V. Malyy Maxim S. Gubin Alexandr S. Kostyukhin Alexey V. Fedorov Igor Y. Kinzhagulov Faculty of Control Systems and Robotics ITMO University Saint-Petersburg Russia

This paper discusses the issues of development of an algorithm for the movement of the measuring module of an automated system for non-destructive quality testing of the solder joints of the engine nozzle. The object of testing is identified as a one with a complex geometric shape, the flaws in soldered joints of the test object occur during the manufacturing process. Defects studied in this paper are: «dry joint», «partial dry joint» and «cold lap». The relevance of the development, as well as the problems of production and testing of engine nozzles, which do not allow to identify the required defects at the early stages of manufacturing assembly units without destroying the integrity of the engine nozzle, are substantiated. The existing approaches are described in terms of the choice of methods and means for non-destructive testing of engine nozzles of complex geometric shapes, their advantages and disadvantages are identified. The existing problems in terms of automation of the pulse-echo and through-transmission methods of ultrasonic testing are analysed, the advantages and disadvantages of the proposed methods are identified. The main factors that reduce the probability of detecting defects are determined, namely, the instability of the acoustic contact between the transducer and the test object, as well as the deviation of the acoustic axis of the transducer from the normal to the surface of the test object. The requirements for the motion algorithm of the measuring module of an automated non-destructive testing system with feedback based on the signal amplitude measured during scanning from the structural elements of the internal structure of the engine nozzle are determined.

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Development of an Algorithm for Calculating the Parameters of the Primary Sensor Transducer for a Dynamic Indentation Device

Development of an Algorithm for Calculating the Parameters o...

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Information, control, and Communication Technologies (ICCT), International Conference on

作者： Oleg Kolganov Roman Egorov Alexander Ilyinsky Alexander Khoshev Igor Kinzhagulov Alexey Fedorov G. N. Lukyanov Faculty of Control Systems and Robotics ITMO University ST Petersburg Russia

This paper considers the issue of developing an algorithm for calculating the parameters of the primary transducer based on the magnetic induction method with differential inductors. A general algorithm for calculating the primary transducer and, in particular, the geometric parameters of the inductor and indenter has been developed.

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