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IEEE Conference on Decision and control

作者： Mihaela Ghita Dana Copot Isabela R. Birs Cristina I. Muresan Robin De Keyser Martine Neckebroek Michel M. R. F. Struys Clara M. Ionescu Department of Electromechanics Systems and Metal Engineering Faculty of Engineering and Architecture Ghent University Gent Belgium EEDT – lab on Decision and Control Flanders Make Gent Belgium Department of Automation Technical University of Cluj-Napoca Cluj-Napoca Romania Department of Anesthesiology Ghent University Hospital Gent Belgium Department of Anesthesiology University Medical Center Groningen University of Groningen Groningen The Netherlands Department of Basic and Applied Medical Sciences Ghent University Gent Belgium

ISBN: (数字)9781665467612

ISBN: (纸本)9781665467629

A novel control strategy is proposed to enable uncertainty minimization through knowledge infusion into the closed loop. The developed methodology aims the application of predictive control to regulate the complex anesthetic- hemodynamic (AH) interaction in a set of patients during general anesthesia. A special focus is given to solutions for minimizing the risk of instability arising from large uncertainty in the patient model dynamics. The paper explores the concept of digitalizing surgical actions as part of the natural mimicking strategy of actual anesthesiologists’ real-life decision-making process. The simulations supporting the claims use an AH simulator. A feasibility study for solutions in an actual constrained input-output variable set is performed. Results confirm that the feasibility is enhanced when minimizing uncertainty conditions, having important clinical relevance in multi-drug optimization.

关键词： Uncertainty Decision making Surgery Minimization Anesthesia Hemodynamics Optimization

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Distributed control of Second-Order Multi-Agent systems:Fractional Integral Action and Consensus

Distributed Control of Second-Order Multi-Agent Systems:Frac...

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第三十九届中国控制会议

作者： Ricardo Cajo Shiquan Zhao Douglas Plaza Robain De Keyser Clara Ionescu Ghent University Research group on Dynamical Systems and Control Harbin Engineering University College of Automation Technical University of Cluj-Napoca Department of Automatic Control

This article addresses the consensus problem in multi-agent systems modeled with double-integrator dynamics under constant disturbances. Therefore, a fractional control protocol to enhance the convergence speed and robustness of the system is proposed. The communication topology of the system is represented by an undirected connected graph. In addition, the convergence of the system is analyzed with the stability boundary locus method, through which analytical expressions are deduced to ensure the stability of the agents group. Finally, an example is provided to illustrate the validity of the theoretical results.

关键词： Multi-agents Consensus problem Fractional calculus Distributed control Double-integrator dynamics

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An application of deep neural networks in industrial robotics for detection of humans 28

An application of deep neural networks in industrial robotic...

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28th International Scientific Conference Electronics, ET 2019 - Proceedings

作者： Stankov, Stanko Ivanov, Stefan Todorov, Todor Department of Automation Information and Control Systems Technical University of Gabrovo 4 Hadji Dimitar str. Gabrovo5300 Bulgaria

ISBN: (纸本)9781728125749

Current paper presents an application of Deep Neural Networks in the field of industrial robotics for detection of people in the operational area of industrial robot. Using machine vision, combined with Deep Neural Network makes possible to improve the safety and collaborative work of standard industrial robots in wide areas of production processes. © 2019 IEEE.

关键词： Deep neural networks

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Time Transformation and Robustness of PI controller Tuning for Integrating Plants with Time Delay

Time Transformation and Robustness of PI Controller Tuning f...

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Cybernetics & Informatics (K&I)

作者： Miluse Viteckova Antonin Vitecek Dagmar Janacova Department of Control Systems and Instrumentation VSB – Technical University of Ostrava Ostrava Czech Republic Department of Automation and Control Engineering Tomas Bata University in Zlin Zlin Czech Republic

ISBN: (数字)9781728143811

ISBN: (纸本)9781728143828

The paper is devoted to the use of time transformation in the analysis of the robustness of PI controller tuning for integrating plants with time delay. The use is shown in the time and frequency domain and especially in the domain of relative adjustable parameters of the PI controller. The proposed approach to the assessment of robustness is new.

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On Nash-Stackelberg-Nash Games under Decision-Dependent Uncertainties: Model and Equilibrium

arXiv

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arXiv 2022年

作者： Zhang, Yunfan Liu, Feng Wang, Zhaojian Chen, Yue Feng, Shuanglei Wu, Qiuwei Hou, Yunhe State Key Laboratory of Power Systems Department of Electrical Engineering Tsinghua University Beijing China MOE Key Laboratory of System Control and Information Processing Department of Automation Shanghai Jiao Tong University Shanghai China Department of Mechanical and Automation Engineering The Chinese University of Hong Kong Hong Kong Hong Kong Renewable Energy Research Center China Electric Power Research Institute Beijing China Center for Electric Power and Energy Department of Electrical Engineering Technical University of Denmark Kgs. Lyngby Denmark Shenzhen Institute of Research and Innovation The University of Hong Kong Hong Kong

In this paper, we discuss a class of two-stage hierarchical games with multiple leaders and followers, which is called Nash-Stackelberg-Nash (N-S-N) games. Particularly, we consider N-S-N games under decision-dependent uncertainties (DDUs). DDUs refer to the uncertainties that are affected by the strategies of decision-makers and have been rarely addressed in game equilibrium analysis. In this paper, we first formulate the N-S-N games with DDUs of complete ignorance, where the interactions between the players and DDUs are characterized by uncertainty sets that depend parametrically on the players’ strategies. Then, a rigorous definition for the equilibrium of the game is established by consolidating generalized Nash equilibrium and Pareto-Nash equilibrium. Afterward, we prove the existence of the equilibrium of N-S-N games under DDUs by applying Kakutani’s fixed-point theorem. Finally, an illustrative example is provided to show the impact of DDUs on the equilibrium of N-S-N games. Copyright © 2022, The Authors. All rights reserved.

关键词： Game theory

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Electric hybrid airship with unlimited flight time

Electric hybrid airship with unlimited flight time

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2020 Sustainable Energy systems: Innovative Perspectives, SES 2020

作者： Pisarevskiy, Yu. V. Fursov, V.B. Pisarevskiy, A. Yu. Tatarnikov, P.N. Sitnikov, N.V. Goremykin, S.A. Department of Electromechanical Systems and Power Supply Voronezh State Technical University Moskovskiy pr. 14 Voronezh394026 Russia Department of Electric Drive Automation and Control in Technical Systems Voronezh State Technical University Moskovskiy pr. 14 Voronezh394026 Russia Department of Protective Structures Federal State Government Issue Military Educational Institution of Higher Education Mil. Train. and Sci. Ctr. of the AF AF Acad. Named after Prof. N.E. Zhukovsky and Yu.A. Gagarin Russia

This paper examines the possibility of using photoelectric energy conversion during creation of electric unmanned aerial vehicles of a hybrid type. These vehicles should operate at altitudes up to 22,000 m and have an unregulated flight time. The problems arising during creation of such devices are their instability and poor controllability. Also they possess a number of disadvantages typical for airships: large size and, as a consequence, high windage and dependence on weather conditions;low maneuverability and, as a consequence, the difficulty of landing. These negative aspects of all circular wings resulted in complete rejection of their development. However, the considered disadvantages show the feasibility of creating hybrid aircraft. Particular attention in this paper is given to disk-shaped vehicles. They have less windage, do not need to turn around when changing the direction of flight. The presence of solar panels in combination with modern control and navigation systems make it possible to create new unmanned aerial vehicles with unlimited flight time. The aircraft dimensions are calculated as a function of the lifted mass and other parameters. Recommendations on possible operation parameters of hybrid airship are given. © The Authors, published by EDP Sciences, 2020.

关键词： Maneuverability

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Internal Model control: Efficient Disturbance Rejection for Dead-Time Process Models with Validation on an Active Suspension System

Internal Model Control: Efficient Disturbance Rejection for ...

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European control Conference (ECC)

作者： Robin De Keyser Cristina I. Muresan DySC research group on Dynamical Systems and Control Ghent University Ghent Belgium Department of Automation Technical University of Cluj-Napoca Cluj-Napoca Romania

ISBN: (数字)9783907144022

ISBN: (纸本)9781728188133

Internal Model control algorithms have numerous advantages, linked to the simplicity of the tuning procedure, the intrinsic dead-time compensation, reasonable robustness. In this paper, a novel idea for tuning an optimized IMC filter for input or load disturbance rejection is used and validated experimentally on a poorly damped process, an active suspension system. The core principle of the design is that the disturbance filter compensates for the process dead-times, provided that the disturbances have a stochastic nature with the spectral energy centered in a narrow frequency band (such as quasi-periodic disturbances). Diophantine equations are used to compute the disturbance filter coefficients. The experimental results show that the novel IMC controller improves the rejection capabilities of the standard default IMC algorithm. Validation is performed considering variations in the disturbance frequency. An adaptive suspension control situation is also tested, with an adapted IMC controller improving even further the disturbance attenuation properties of the proposed optimized IMC.

关键词： Suspensions Tuning Mathematical model Optimization Standards Filtering theory Process control

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New Stage in Safety Traffic control Technologies Development: Digital Railroad Crossing

New Stage in Safety Traffic Control Technologies Development...

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2019 International Russian automation Conference, RusAutoCon 2019

作者： Efanov, Dmitrii V. Osadchii, German V. Khoroshev, Valerii V. Moscow Russia Scientific and Technical Center Integrated Monitoring Systems' LLC Moscow Russia Department of Automation Remote Control and Communication on Railway Transport Moscow Russia

ISBN: (纸本)9781728102658

The authors proposed a modern traffic control system on railroad crossings, which includes traditional railway automation equipment with devices for continuous monitoring of railway infrastructure and rolling stock. The railroad crossing equipment with new devices allows significantly increasing the information content of the traffic participant from both the road and railway transport. It becomes possible to use flexible traffic control algorithms, while safety is significantly increased. Traffic participants have the opportunity to obtain a forecast of travel time of train through railway crossing, and the availability of such information can reduce the number of failures and eliminate the influence of the human factor. The use of modern information technologies makes it possible to improve the process of data exchange between moving units and the infrastructure of a railroad crossing, as well as develop rational traffic control algorithms taking into account the current transport situation. © 2019 IEEE.

关键词： Railroad crossings

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Safe Feedback Motion Planning in Unknown Environments: An Instantaneous Local control Barrier Function Approach

arXiv

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arXiv 2021年

作者： Li, Cong Zhang, Zengjie Nesrin, Ahmed Liu, Qingchen Liu, Fangzhou Buss, Martin Technical University of Munich Theresienstr. 90 Munich80333 Germany Department of Electrical Engineering Eindhoven University of Technology Eindhoven5600 MB Netherlands Department of Automation University of Science and Technology of China Hefei230027 China Research Institute of Intelligent Control and Systems Harbin Institute of Technology Harbin150001 China

Mobile robots are desired with resilience to safely interact with prior-unknown environments and finally accomplish given tasks. This paper utilizes instantaneous local sensory data to stimulate the safe feedback motion planning (SFMP) strategy with adaptability to diverse prior-unknown environments without building a global map. This is achieved by the numerical optimization with the constraints, referred to as instantaneous local control barrier functions (IL-CBFs) and goal-driven control Lyapunov functions (GD-CLFs), learned from perceptional signals. In particular, the IL-CBFs reflecting potential collisions and GD-CLFs encoding incrementally discovered subgoals are first online learned from local perceptual data. Then, the learned IL-CBFs are united with GD-CLFs in the context of quadratic programming (QP) to generate the safe feedback motion planning strategy. Rather importantly, an optimization over the admissible control space of IL-CBFs is conducted to enhance the solution feasibility of QP. The SFMP strategy is developed with theoretically guaranteed collision avoidance and convergence to destinations. Numerical simulations are conducted to reveal the effectiveness of the proposed SFMP strategy that drives mobile robots to safely reach the destination incrementally in diverse prior-unknown environments. Copyright © 2021, The Authors. All rights reserved.

关键词： Lyapunov functions

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Experimental Demonstration of a Visible Light Communications Crosswalk Assistance System

Experimental Demonstration of a Visible Light Communications...

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International Symposium on Electronics and Telecommunications (ISETC)

作者： Cătălin Beguni Eduard Zadobrischi Sebastian-Andrei Avătămăniţei Alin-Mihai Căilean Department of Computers Electronics and Automation Stefan cel Mare University of Suceava Suceava Romania Integrated Center for Research Development and Innovation in Advanced Materials Nanotechnologies and Distributed Systems for Fabrication and Control Stefan cel Mare University of Suceava Suceava Romania Technical University of Cluj-Napoca Cluj-Napoca Romania Laboratoire d'Ingénierie des Systèmes de Versailles Paris-Saclay University Vélizy-Villacoublay France

ISBN: (纸本)9781665451512

In the context in which pedestrians are the most exposed road user category in urban areas, this paper presents the results of an experimental demonstration of a new system designed to assist pedestrians in safely using a crosswalk. The proposed architecture consists of a pedestrian detection and localization unit that detects pedestrians in the crosswalk area, a visible light communications component that transmits this information toward the approaching vehicles using the visible light communications technology and a graphical user interface that enables the driver to receive relevant traffic safety information. The experimental investigation has shown that based on a multi-sensor data fusion approach, pedestrians are detected with an overall 100% detection rate, whereas the low power crosswalk sign VLC emitter can provide a communication range of up to 27 ― 40 meters, with a data rate of 100 kb/s and a BER in the 10– 7 ― 10– 4 range. Therefore, the experimental results indicate that the proposed VLC system has high performance in traffic situations that could pose serious issues to other concepts.

关键词： Wireless communication Meters Road accidents Urban areas Road safety Safety Telecommunications

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