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2022 IEEE International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2022

作者： Sun, Wanyan Tan, Qingyuan Tan, Yonghong Tianjin Key Laboratory of Intelligent Robotics Nankai University Institute of Robotics and Automatic Information System College of Artificial Intelligence Nankai University Tianjin China University of Windsor Dept. of Electrical and Computer Engineering Windsor Canada College of Information Mechanical and Electrical Engineering Shanghai Normal University Shanghai China

ISBN: (数字)9781665475433

ISBN: (纸本)9781665475433

In this paper, a model-independent adaptive PID control scheme is proposed for the angle control of electromagnetic scanning micromirrors. In this scheme, only using the input and output data of the micromirror, a model-free adaptive mechanism is designed to adjust the PID parameters online to adapt to the change of the micromirror characteristics due to the hysteresis exists in the micromirror. It makes the deflection angle of the micromirror can track the reference trajectory fast and accurately. Finally, the simulation results show that the proposed control method has achieved better control performance than PID control in controlling the deflection angle of the micromirror. © 2022 IEEE.

关键词： Three term control systems

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Analysis of the zero dynamics of three-phase current source inverters using a complex-valued approach

Analysis of the zero dynamics of three-phase current source ...

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IEEE International Symposium on Industrial Electronics (ISIE)

作者： Leila Rahimi Arnau Dòria-Cerezo Robert Griñó Inst. of Ind. and Control Engineering Universitat Politècnica de Catalunya Barcelona Spain Inst. of Industrial and Control Eng. and Dept. of Electrical Engineering Universitat Politècnica de Catalunya Barcelona Spain Inst. of Industrial and Control Eng. and Dept. of Automatic Control Universitat Politècnica de Catalunya Barcelona Spain

This paper analyzes the zero dynamics of three-phase current source inverters fed from a voltage source and connected to a local resistive load or the electrical power grid. The zero dynamics is the remaining dynamics of a system when it exactly meets the control objectives. It is important for understanding the system behaviour, and its limitations, and designing efficacious controllers. The analysis concludes that, when the power source is modelled from its Thévenin equivalent circuit, some stability problems occur in the dc link if the control scheme only tracks the output voltage. The paper includes an alternative nested-loop controller that overcomes the internal dc-current instability.

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Method for Selecting Error-Correcting Code Parameters Based on Prediction of the State of a Communication Channel

Method for Selecting Error-Correcting Code Parameters Based ...

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2020 International Multi-Conference on Industrial engineering and Modern Technologies, FarEastCon 2020

作者： Bogachev, I. Levenets, A. Chye, En Un Pacific National University Dept. of Automatic and System Engineering Khabarovsk Russia

ISBN: (纸本)9781728169514

The article is devoted to the study of the effectiveness of the methods for evaluating and predicting the state of the communication channel, which are used to organize the operation of the adaptive noise-resistant telemetry data transmission system. The study was carried out using the proposed methods and the participation of the noise-resistant Bowes-Chowdhury-Hockingham code in a binary symmetric channel. The data obtained allowed us to determine the optimal parameters of the system, to evaluate the performance of the proposed methods and showed the advantage of using a combined approach based on the joint use of methods for estimating and predicting the state of a communication channel over their separate use. © 2020 IEEE.

关键词： Forecasting

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Relational modeling framework for complex systems

UPB Scientific Bulletin, Series C: Electrical Engineering an...

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UPB Scientific Bulletin, Series C: Electrical engineering and Computer Science 2021年第1期83卷 15-28页

作者： Popescu, Dragos Constantin Dumitrache, Ioan Dept. of Automatic Control and Systems Engineering University POLITEHNICA of Bucharest Romania

This paper addresses the topic of modeling complex systems and introduces a new formal framework. It starts with an extensive overview on the context of complex systems, major research and application directions and general requirements in terms of modeling with an emphasis on the Cyber Physical systems paradigm. Afterwards, five key modeling formalisms which address various aspects of complex systems are presented. The formal contribution of this paper is ultimately introduced. The approach is based on integrating in a unified architecture multiple modeling formalisms that are dynamically re-configured inside a modeling environment. A particular implementation of the framework is further defined for integrating relational models, probabilities and numerical information. © 2021, Politechnica University of Bucharest. All rights reserved.

关键词： Large scale systems

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INCORPORATING THE COM-B MODEL FOR BEHAVIOR CHANGE INTO AN AGENT-BASED MODEL OF SMOKING BEHAVIORS: AN OBJECT-ORIENTED DESIGN

INCORPORATING THE COM-B MODEL FOR BEHAVIOR CHANGE INTO AN AG...

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2024 Winter Simulation Conference, WSC 2024

作者： Tian, David Squires, Hazel Y. Buckley, Charlotte Gillespie, Duncan Tattan-Birch, Harry Shahab, Lion West, Robert Brennan, Alan Brown, Jamie Purshouse, Robin C. Dept. of Automatic Control and Systems Engineering University of Sheffield S1 3JD United Kingdom Sheffield Centre for Health and Related Research School of Medicine and Population Health University of Sheffield S1 4DA United Kingdom Institute of Epidemiology and Health University College London WC1E 7HB United Kingdom

ISBN: (纸本)9798331534202

Modeling trajectories in cigarette smoking prevalence, initiation and quitting for populations and subgroups of populations is important for policy planning and evaluation. This paper proposes an agent-based model (ABM) design for simulating the smoking behaviors of a population using the Capability, Opportunity, Motivation - Behavior (COM-B) model. Capability, Opportunity and Motivation are modeled as latent composite attributes which are composed of observable factors associated with smoking behaviors. Three forms of the COM-B model are proposed to explain the transitions between smoking behaviors: initiating regular smoking uptake, making a quit attempt and quitting successfully. The ABM design follows object-oriented principles and extends an existing generic software architecture for mechanism-based modeling. The potential of the model to assess the impact of smoking policies is illustrated and discussed. © 2024 IEEE.

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Multi-robot Motion Planning under MITL Specifications based on Time Petri Nets

Multi-robot Motion Planning under MITL Specifications based ...

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European control Conference (ECC)

作者： Sofia Hustiu Dimos V. Dimarogonas Cristian Mahulea Marius Kloetzer Dept. of Automatic Control and Applied Informatics Technical University ”Gheorghe Asachi” of Iasi Romania Division of Decision and Control System KTH Royal Institute of Technology Stockholm Sweden Aragón Institute of Engineering Research (I3A) University of Zaragoza Maria de Luna 1 Zaragoza Spain

This paper proposes a high-level path planning strategy under Time Petri net (TPN) formalism for a multiagent system, which is subject to Metric Interval Temporal Logic (MITL) specifications. The work aims to design a scalable model with respect to the number of agents, as the MITL formula requires multiple agents to ensure similar tasks. The obtained model is denoted Composed Time Petri net and it couples two TPN representations assigned to the motion of the agents, respectively to the MITL specification. The planning approach is based on model-checking methods and the results are evaluated on a case study applied in robotics industry.

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High-Speed CBJT Operational Amplifier Based on “Folded” Cascode with a Differentiating Transient Correction Circuit

High-Speed CBJT Operational Amplifier Based on “Folded” Ca...

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Wave Electronics and its Application in Information and Telecommunication systems (WECONF)

作者： A. E. Titov D. V. Kuznetsov D. Y. Denisenko I. A. Alferova dept. of Automatic Control Systems Southern Federal University Rostov-on-Don Russia dept. of Scientific Research dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia dept. of Scientific Research Don State Technical University Rostov-on-Don Russia dept. of Scientific Research dept. of Cyber Security of Information Systems Don State Technical University Rostov-on-Don Russia

ISBN: (数字)9798350364989

ISBN: (纸本)9798350364996

A circuit design of a high-speed CBJT operational amplifier (OpAmp) based on an “folded” cascode is proposed, in which a differentiating transient correction circuit is introduced to increase the maximum slew rate of the output voltage (SR). The considered OpAmp is intended for use in a subclass of so-called discrete-to-analog SC filters on switched capacitors, where (in some important cases) higher SR values of the OpAmp are required. In addition, such high-speed OpAmps are in demand in drivers of high-speed analog-to-digital converters and other devices of automatics and computer engineering. Computer simulation in LTSpice environment shows that the proposed CBJT OpAmp circuit designs for micron silicon technological processes provide SR increase from 45.8 V/μs to 18000 V/μs.

关键词： Operational amplifiers Micrometers Computer simulation Voltage Switches Silicon Circuit synthesis

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Home Care Assistance Solution based on a Software Multi-Agents system

Home Care Assistance Solution based on a Software Multi-Agen...

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International Conference on control systems and Computer Science (CSCS)

作者： Mohammad Rasras Iuliana Marin Şerban Radu Doctoral School of Automatic Control and Computers University POLITEHNICA of Bucharest Bucharest ROMANIA Dept. of Engineering in Foreign Languages University POLITEHNICA of Bucharest Bucharest ROMANIA Dept. of Computer Science University POLITEHNICA of Bucharest Bucharest ROMANIA

A smart home allows automated technology to control systems and appliances to assist daily life activities. In the current work, a prototype of a designed smart home health-aware system is presented. Three predefined ruled agents have been used to gather data, communicate between themselves, interpret the data based on several machine learning algorithms to predict abnormality for cardiac conditions. The paper also compares results obtained by running five machine learning algorithms. The agents function in accordance with predefined dataset describing residents ’ age, gender, height, weight, systolic and diastolic blood pressure, cholesterol, and glucose levels, smoking and alcohol consumption habits, and lastly, physical activity. Our plan is to simplify ubiquitous health monitoring for smart home’s residents. The proposed solution aims to monitor parametric measurements to alert health specialists in case of emergencies.

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The Bandwidth Verification of VHF Antenna and Apply for Partial Discharge Measurement

The Bandwidth Verification of VHF Antenna and Apply for Part...

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2022 9th International Conference on Condition Monitoring and Diagnosis (CMD)

作者： Kittisak Thungsook Norasage Pattanadech Phethai Nimsanong Chissanupong Srinangyam Electrical Engineering Dept. School of Engineering King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand Power System Control Dept. Power System Operation and Control Section 2 Metropolitan Electricity Authority Bangkok Thailand

ISBN: (数字)9784886864314

ISBN: (纸本)9781665470155

This research explains the bandwidth verification and application of the VHF antenna for partial discharge measurement. Three different VHF antennas were used for the experiment. In the research, the measuring bandwidth of such antennas was evaluated using a network analyzer. The antenna properties such as return loss and voltage standing wave ratio were analyzed. Then, the partial discharge in the air was simulated using the surface discharge model. The physical phenomena of PD occur like pulse current transients and electromagnetic waves. The pulse current transients were detected using a coupling capacitor and HFCT sensor, while the electromagnetic wave was detected using a VHF antenna. five test positions of the VHF antenna were designated for partial discharge measurements namely 1, 2, 3, 4, and 5 meters away from the partial discharge source. The PRPD pattern, PD magnitude, and waveform obtained from the VHF antenna were compared with coupling capacitors and HFCT sensors and presented in this paper. It is found that the VHF antenna, which has higher return loss and lower voltage standing wave ratio, provides high performance to detect the electromagnetic wave of partial discharge.

关键词： Antenna measurements Partial discharge measurement Partial discharges Couplings Surface waves Electromagnetic scattering Capacitors

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High-Speed Operational Amplifier with a Differentiating Circuit of Transient Correction

High-Speed Operational Amplifier with a Differentiating Circ...

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IEEE NW Russia Young Researchers in Electrical and Electronic engineering Conference (EIConRusNW)

作者： Alexey E. Titov Irina A. Alferova Dmitry V. Kuznetsov dept. of Automatic Control Systems Southern Federal University Rostov-on-Don Russia dept. of Scientific Research Don State Technical University Rostov-on-Don Russia dept. of Cyber Security of Information Systems Don State Technical University Rostov-on-Don Russia dept. of Information Systems and Radio Engineering Don State Technical University Rostov-on-Don Russia

The relevance of the present research is related to the search for promising ideas for increasing the maximum slew rate of the output voltage ($\text{SR}_{\text{M}}$) of new-generation operational amplifiers (OpAmps). Proposed circuit techniques that provide (with simultaneous use) an increase in $\text{SR}_{\text{M}}$ by more than 2 orders of magnitude. Such high-speed operational amplifiers are in demand today for application in drivers of high-speed ADCs (AD9208, AD9691, etc.), and as active elements in circuits of analog-to-discrete filters on switched capacitors. It is proposed to introduce (according to the developed rules) a nonlinear differentiating RC-circuit realized based on an additional differential stage and a differentiating capacitor of small capacitance into the classical OpAmps with one integrating correction capacitance. Such circuit "additives" practically do not change the low-signal dynamic and static parameters of the OpAmp, and at a large signal during the transient front, when the input stage enters the nonlinear mode, form a large current overcharge of the integrating correction capacitor. Consequently, the $\text{SR}_{\text{M}}$ of the OpAmp is significantly increased.

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