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Algorithm for the Camera Scene 3D Model Calculation 15

Algorithm for the Camera Scene 3D Model Calculation

引用

15th International Scientific-technical Conference on Actual Problems of Electronic Instrument engineering, APEIE 2021

作者： Mikhaylenko, Dmitriy A. Yakimenko, Alexander A. Novosibirsk State Technical University Faculty of Automation and Computer Engineering Novosibirsk Russia Fac. of Automat. and Comp. Eng. Novosibirsk State Tech. Univ. Lab. of Geophys. Info. Inst. of Compl. Math. and Math. Geophys. SB RAS Novosibirsk Russia

ISBN: (纸本)9781665434089

Modern 3D reconstruction algorithms offer a wide range of methods and tools for building a model of the surrounding space. Most of the approaches require the use of additional equipment, such as: lidars, laser scanners, stereo cameras. At best, a video camera with high-definition resolution is required. The cost of auxiliary equipment limits the availability of these methods. In addition, using 3D reconstruction approaches for the task of obtaining a video surveillance scene leads to the problem of determining the location of the camera in the resulting model. To avoid this problem, the spatial information obtaining by the surveillance cameras itself is suggested. Since the cameras using in surveillance are usually not a stereo pairs and in a worst scenario placed without overlapping, the suggested approach is to extract the spatial information during the calibration. This article presents an algorithm for obtaining a 3D model of the camera scene using the reference points acquired during calibration. © 2021 IEEE.

关键词： Calibration

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Digital Control of Balancing Robot

Digital Control of Balancing Robot

引用

2020 International Russian automation Conference, RusAutoCon 2020

作者： Zhmud, Vadim Ivoilov, Andrey Dimitrov, Lubomir Novosibirsk State Technical University Dept. of Automation Novosibirsk Russia Faculty of Mechanical Engineering Sofia Bulgaria

ISBN: (纸本)9781728161303

The paper solves the problem of developing a two-wheeled balancing robot. The technology for solving this problem can be extended to any close problem, commonly it can be called stabilization of an inverted pendulum. The relevance of the development is justified by the need to solve control problems in many important technical systems, such as small-sized autonomous two-wheeled robots, stabilization of the antenna of a space device, stabilization of rocket motion on a jet stream, and so on. The practical solution to this problem using the simplest possible actuators, mainly due to correctly designed controllers implemented on digital microcontrollers, makes this development a useful training stand for training highly qualified specialists in the field of robotics, mechatronics and automation. © 2020 IEEE.

关键词： Controllers

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Monitoring System of Seismo Dynamics of Rocks for Recording Earthquake Precursors 15

Monitoring System of Seismo Dynamics of Rocks for Recording ...

引用

15th International Scientific-technical Conference on Actual Problems of Electronic Instrument engineering, APEIE 2021

作者： Zhmud, V.A. Dimitrov, L.V. Mansurova, M.E. Semibalamut, V.M. Fomin, Yu. N. Stukach, O.V. Novosibirsk State Technical University Institute of Laser Physics SB RAS Russia Dept. of Automation Novosibirsk Russia Technical University of Sofia Mechanical Engineering Faculty Sofia Bulgaria Al-Farabi Kazakh National University Department of Artificial Intelligence and Big Data Almaty Kazakhstan Siberian Branch of the Federal State Budgetary Institution of Science of the Federal Research Center Unified Geophysical Service of the Russian Academy of Sciences Novosibirsk Russia Novosibirsk State Technical University Dept. of Information Defense Novosibirsk Russia

ISBN: (纸本)9781665434089

Internet of things (IoT) and smart city technologies are closely related to citizen security issues. One of the important components of safety is to reduce damage from man-made and natural disasters. In this area, the most important direction is the continuous monitoring of rock vibrations under the influence of tidal forces. These technologies, with minor changes, can be used to monitor the state of complex technological structures, such as dams, bridges, large buildings. It is known that continuous recording of micro deformations of rocks under the action of gravitational forces from the Sun and the Moon due to a change in their location in relation to the Earth's surface allows one to obtain additional information about the possible future earthquakes. The corresponding meters are based on two helium-neon (He-Ne) lasers. They contain a rather complicated and insufficiently reliable system for automatic phase and frequency tuning of the slave laser to the master. Insufficient accuracy of such phase feedback control generates errors in measurement. This paper proposes to abandon such variants of the devices based on the use of two lasers. The structure based on the only laser has been proposed. This requires metrological justification, as well as the development of appropriate optical schemes, design development and change of the electronic part. Nevertheless, such a modification seems appropriate. The reasons for this lie in a clear increase in reliability and accuracy, a decrease in cost and size. © 2021 IEEE.

关键词： Earthquakes

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Features of the Computational Process Organization of Initial Parameters Determination for Shading 12

Features of the Computational Process Organization of Initia...

引用

12th International Conference on Advanced computer Information Technologies, ACIT 2022

作者： Romanyuk, Olexandr Romanyuk, Oksana Mykhaylov, Pavlo Chekhmestruk, Roman Korobeinikova, Tetiana Romanyuk, Sergey Vinnytsia National Technical University Faculty of Information Technologies and Computer Engineering Vinnytsia Ukraine 3D Generation Ua Vinnytsia Ukraine Institute of Computer Technologies Automation and Metrology Lviv Polytechnic National University Lviv Ukraine Ceo 3D Gneration GmbH Dortmund Germany Institute of Computer Systems Odessa Polytechnic State University Odessa Ukraine

ISBN: (数字)9781665410502

ISBN: (纸本)9781665466479

The property of constancy of color intensity increment for the whole triangle is proved, which allows to significantly reduce the amount of calculations when implementing shading, since the increment of color intensity is determined for the whole triangle and not for each rasterization line. This allows to perform these calculations in the preparation cycle and exclude 'long' operations directly from the shading cycle. Based on the proven property, a number of parallelization methods are proposed, which have a simple hardware implementation. Structural diagrams of devices for shading tasks are given. Methods for reducing the complexity of vector normalization are proposed. © 2022 IEEE.

关键词： Rasterization

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Simulation of the Functional Characteristics of Low-Voltage Switching Devices, Based on the Example of Automatic Circuit Breakers

Simulation of the Functional Characteristics of Low-Voltage ...

引用

International Conference on Clean Electrical Power (ICCEP)

作者： Almaz Radikovich Petrov Elena Ivanovna Gracheva Tatiana Sinyukova Stanimir Valtchev Rosario Miceli Aqeel Ur Rahman Departm. of Power Supply of Industrial Enterprises Kazan State Power Engineering University Kazan Russia Automation and Computer Science Faculty Lipetsk State Technical University Lipetsk Russia Faculty FCT and UNINOVA CTS University NOVA Lisbon Portugal Department of Engineering University of Palermo Italy

The article discusses the main features of mechanical, chemical, thermal, and electrical processes occurring in the contact zones of the surfaces of contact connections of electrical devices. The parameters determining the value of power losses and power consumption in low voltage switching equipment are analyzed. The main features of the characteristics of the topology and technical condition in the operating conditions of the equipment of shop low-voltage industrial power supply networks are shown. A comparative analysis of the technical characteristics of automatic circuit breakers. Using catalog data, the dependences of active power losses in circuit breakers on rated currents are established. Algorithms have been developed and the obtained dependencies have been modeled using approximating functions. The standard deviation of the compiled approximating functions is calculated. Analytical expressions of the dynamics of power losses per pole in the studied machines of some companies of the function of the rated current are presented. The graphical dependencies of the investigated parameters of low-voltage equipment are presented. The developed models are recommended to be used to increase the reliability of the assessment and refinement of the amount of active power and electricity losses in low-voltage electrical networks of industrial power supply systems.

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Reliability and Overload Capacity of Power Transformers

Reliability and Overload Capacity of Power Transformers

引用

International Conference on Clean Electrical Power (ICCEP)

作者： Elena Ivanovna Gracheva Renata Maratovna Petrova Tatiana Sinyukova Stanimir Valtchev Rosario Miceli Massimo Caruso Departm. of Power Supply of Industrial Enterprises Kazan State Power Engineering University Kazan Russia Automation and Computer Science Faculty Lipetsk State Technical University Lipetsk Russia Faculty FCT and UNINOVA -CTS University NOVA of Lisbon Portugal Department of Engineering University of Palermo Italy

The article describes the reliability of transformers, the failure rate and uptime to the first failure, the durability and maintainability of transformers and their service life, the allowable temperature rises and the dependence of steady-state overheating on the load factor of the transformer. An assessment of the effect of ambient temperature on the rated power of the transformer is shown. Dependences of heating on the changing load of transformers are given. The heating time constant is calculated depending on the power and cooling system of the transformer. The winding heating temperature is considered for real daily load schedules of a 33/11 kV transformer, the maximum actual overheats are compared when loaded with full power with allowable overheats. These studies can be used in transformers 33/11 kV and others with subsequent interpolation of values.

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Prediction and Analysis of Power Consumption and Power Loss at Industrial Facilities

Prediction and Analysis of Power Consumption and Power Loss ...

引用

International Conference on Clean Electrical Power (ICCEP)

作者： Elena Ivanovna Gracheva Ibatullin Eduard Elsovich Tatiana Sinyukova Stanimir Valtchev Rosario Miceli Nicola Campagna Departm. of Power Supply of Industrial Enterprises Kazan State Power Engineering University Kazan Russia Automation and Computer Science Faculty Lipetsk State Technical University Lipetsk Russia Faculty FCT and UNINOVA -CTS University NOVA of Lisbon Portugal Department of Engineering University of Palermo Italy

In this article, a study of radial and trunk circuits of networks was carried out and power losses were determined using the proposed coefficients. Equivalent resistances of the investigated circuits were calculated considering the changes in circuit and mode parameters. Results of calculations are presented, considering equipment layout and technical parameters.

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Multiple Pseudo-Local Feedbacks for Controlling High-Order Oscillatory Objects 15

Multiple Pseudo-Local Feedbacks for Controlling High-Order O...

引用

15th International Scientific-technical Conference on Actual Problems of Electronic Instrument engineering, APEIE 2021

作者： Zhmud, V.A. Nosek, J. Mansurova, M.E. Semibalamut, V.M. Fomin, Yu. N. Stukach, O.V. Novosibirsk State Technical University Institute of Laser Physics Sb Ras Dept. of Automation Novosibirsk Russia Technical University of Liberec Inst. of Mechatronics and Computer Engineering Liberec Czech Republic Al-Farabi Kazakh National University Department of Artificial Intelligence and Big Data Almaty Kazakhstan Unified Geophysical Service of the Russian Academy of Sciences Siberian Branch of the Federal State Budgetary Institution of Science of the Federal Research Center Novosibirsk Russia Novosibirsk State Technical University Higher School of Economics Dept. of Information Defense Moscow Russia

ISBN: (纸本)9781665434089

Development of the Internet of things (IoT) technologies arises many additional problems as energy harvesting. In particular, a long-Time controlling object needs a device without an external power supply. The control of technical objects with a high order of mathematical model has a large difficulty if a feature of the object is a high tendency to oscillations due to the ratio of the coefficients in the model. In particular, the tendency to oscillations occurs if the object model has complex roots, or if the model has a transport delay. One such example is a model that consists of two oscillatory objects and a delay loop. Widespread controlling such an objects using a PID controller is very difficult since in the transient process in the resulting system there is a large overshoot and many oscillations. If such an object could be stabilized with additional local feedbacks, the control task would be greatly simplified, but the object does not have corresponding outputs and inputs, therefore local feedbacks cannot be used. The pseudo-local feedback approach assumes the use of virtual fragments of the object's mathematical model in the controller to form such connections that the system perceives as local ones. This paper proposed the use of several pseudo-local feedbacks to control an object with elements that increased its tendency to oscillate. The effectiveness of the proposed approach is confirmed by modeling. © 2021 IEEE.

关键词： Feedback

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Lower Extremity Exoskeleton Simulation Model with Variable Stiffness Actuation for Vertical Locomotion 3

Lower Extremity Exoskeleton Simulation Model with Variable S...

引用

3rd International Conference on Control Systems, Mathematical Modeling, automation and Energy Efficiency, SUMMA 2021

作者： Kondratyev, Sergey Cruypeninck, Lennert Tsareva, Anastasia Lipetsk State Technical University Automation and Computer Science Faculty Lipetsk Russia Katholieke Universiteit Leuven Department of Mechanical Engineering Leuven Belgium ITMO University International Research Center SCAMT Saint-Petersburg Russia

ISBN: (纸本)9781665439817

This paper proposes a lower extremity exoskeleton simulation model for more effective control in vertical locomotion when patients need to move from static seating configuration to walking-ready configuration. Variable impedance actuators (VIA) or variable stiffness actuators (VSA) are considered as the primary source of generating and translating controlled torque values with elastic compliance properties to movement elements of a discussed system using PID control with dynamic compensation. The model-applied torque can be divided into two torques, one about gravity compensation and another about acceleration. The simulink environment with simscape library was used to create a simulation process of the working mechanism. Data on angles, torques, and velocities were obtained and considered for correctness in natural human locomotion. Calculations provide upper limit for the required torque to stand up, which can be used as a basis to select a proper actuator. © 2021 IEEE.

关键词： Actuators

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Improvement of Flexibility in the Integrated Energy Systems 15

Improvement of Flexibility in the Integrated Energy Systems

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15th International Scientific-technical Conference on Actual Problems of Electronic Instrument engineering, APEIE 2021

作者： Bayasgalan, Zagdkhorol Bayasgalan, Tsetsaee Hardt, Wolfram Reva, Ivan L. Power Engineering School Mongolian University of Science and Technology Dept. of Electrotechnics Ulaanbaatar Mongolia School of Business Administration and Humanities Mongolian University of Science and Technology Dept. of Technology Management Ulaanbaatar Mongolia Chemnitz University of Technology Computer Engineering Professorship Faculty of Computer Science Chemnitz Germany Novosibirsk State Technical University Dept. of Data Security Novosibirsk Russia

ISBN: (纸本)9781665434089

This paper presents possibilities to improve flexibility for integrated energy systems using optimization techniques in a capacity market. Long-Term planning of the energy system is considered. Meeting the rapidly growing demand for electricity requires a complete integrated power system solution that must support consumers, stakeholders, and regional operations. The rapid change in the global economy is creating an energy transition towards the strategic future of power systems and energy markets-a new era of flexible grids, or the era of energy flexibility. The proposed capacity market model improves the competitiveness of the energy market system in accordance with the assessment and flexibility of electricity security. It also presents recommendations for evaluating the dimensions of the integrated energy system. All participants in the energy market can accept it as a useful tool to support decision-making and increase the sustainability of the energy system. The smart grids provide the reliability of power supply in an increasingly complex operating environment, achieved through observability, digitalization, and an increase in the number of measurements. Power supply and grid companies remain the main drivers of change. © 2021 IEEE.

关键词： Power markets

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