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International Journal of control and Automation 2016年第5期9卷 387-394页

作者： Kim, Min Byun, Gi-Sig Kim, Gwan-Hyung Choi, Myoung-Hoon Dept. of Control and Instrumentation Engineering Pukyong Univ Nam-gu Busan Korea Republic of Dept. of Computer Engineering Tongmyong Univ Yongdang-dong Busan Korea Republic of

Drones in flight make a variety of vibration frequencies. Therefore, gimbal system is needed to get clean images from drone-mounted cameras. The system consists of two things: one is a structure to support a camera module, and another is a stabilizer to block outside vibrations and keep the right angle. The purpose of this paper focuses on the system's dynamics model and the application of a traditional PID controller. Furthermore, the paper compares the traditional PID and intelligent-PID without any dynamics model through the simulation made of MATLAB/Simulink. © 2016 SERSC.

关键词： controllers

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Nonlinear Tracking control of a Cryogenic Separation Process

Nonlinear Tracking Control of a Cryogenic Separation Process

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Asian control Conference

作者： Tua A. Tamba Yul Y. Nazaruddin Dept. of Electrical Engineering (Mechatronics) Parahyangan Catholic University Indonesia Instrumentation & Control Research Group Institut Teknologi Bandung Indonesia

ISBN: (纸本)9781509015740;9781509015733

The cryogenic separation process is typically used to extract specific components of the air in high purity gas or liquid forms. This paper proposes a computational approach for synthesizing optimal and suboptimal tracking controllers for a nonlinear model of a cryogenic isotope separation process. The proposed method essentially formulates a sum of squares (SOS) optimization problem for solving the state-dependent Riccati equation (SDRE) which arises in the considered nonlinear tracking control problem. More specifically, the paper first characterizes an optimal control law which forces the closed loop state trajectories to track a given reference signal and at the same time minimizes a quadratic performance index in an exact manner. Due to a computational issue which arises in synthesizing such an exact control law (i.e. the need to solve the SDRE), the paper then formulates SOS optimization problems for computing sub-optimal tracking control laws. A simulation example describing the design of a tracking controller for the cryogenic isotope separation process plant is then presented to illustrate the effectiveness of the proposed method.

关键词： Isotopes Cryogenics Separation processes Computational modeling Symmetric matrices Optimal control

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Mixed-sensitivity design of a dynamic controller for systems pre-compensated by input shapers

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IFAC-PapersOnLine 2017年第1期50卷 1304-1309页

作者： Pilbauer D. Michiels W. Vyhlídal T. Hromčík M. Department of Computer Science Katholieke Universiteit Leuven Celestijnenlaan 200A Heverlee B-3001 Belgium CIIRC - Czech Institute of Informatics Robotics and Cybernetics Dept. of Instrumentation and Control Eng. Faculty of Mechanical Engineering Czech Technical University in Prague Technická 4 166 07 Praha 6 Czech Republic M. Hromčík is with Deptartment of Control Engineering Faculty of Electrical Engineering Czech Technical University in Prague Technická 4 166 07 Praha 6 Czech Republic

We employ recent control design algorithms for delay systems to address the mixed sensitivity design of a dynamic controller for multiple degree of freedom systems interconnected with an inverse signal shaper. A delay based inverse shaper is included within a feedback loop in order to eliminate oscillatory modes due to an attached flexible substructure, which has been shown to be advantageous to inducing directly the filtering property by an appropriate controller design. Due to the presence of the inverse shaper, the closed loop dynamics become infinite dimensional. Furthermore we design fixed-order controllers, aiming at an easy implementation. As a consequence of these two features standard techniques from H-infinity control can no longer be used. We present a two-stage method, which firstly makes the closed-loop system asymptotically stable and, secondly, computes a low-order controller that minimizes the H-infinity norm of the weighted closed-loop transfer functions. The approach is grounded in recent methods for fixed-order H-infinity control of delay systems, and the delay-differential algebraic equations (DDAE) modelling and control framework. © 2017

关键词： H-infinity control inverse shapers spectral optimization time-delay

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Resilient control Under Denial-of-Service via Dynamic Event Triggering

Resilient Control Under Denial-of-Service via Dynamic Event ...

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Asian control Conference

作者： Tua A. Tamba Yul Y. Nazaruddin Bin Hu Dept. of Electrical Engineering (Mechatronics) Parahyangan Catholic University Indonesia Instrumentation & Control Research Group Inetitut Teknologi Bandung Indonesia Dept. of Engineering Technology Old Dominion University Norfolk VA USA

ISBN: (纸本)9781509015740;9781509015733

Networked control systems (NCS) typically utilize networks of computers and communication links to automatically monitor and manage the plant-sensor-controller-actuator interactions and data exchanges. One important issue in the design of NCS is concerning the reliability and security of the used communication network when there are problems/imperfections which occur due to failures of some components or attacks from malicious adversaries. This paper examines the NCS stability in the presence of a particular communication network problem called denial-of-service (DoS). In essence, a DoS is a form of failure/attack on NCS' communication systems which prevents an ideal implementation of the control inputs to be executed. This paper proposes a resilient control design approach based on a dynamic triggering scheme (DTS) which guarantees the stability of the closed loop NCS in the presence of DoS. The main results of the papers show that the DTS appears to be a more beneficial approach than the previously developed static triggering scheme since the former not only provides an event-triggered implementation scheme with longer inter-sampling interval but is also capable of mitigating DoS with longer (average) duration of occurrences.

关键词： Actuators Reliability Communication networks control design Security Task analysis

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Automated guided vehicle navigation with obstacle avoidance in normal and guided environments 11

Automated guided vehicle navigation with obstacle avoidance ...

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11th International Conference on Industrial and Information Systems, ICIIS 2016

作者： Kar, Aniket K. Dhar, Narendra K. Farhad Nawaz, S.S. Chandola, Rashi Verma, Nishchal K. Dept. of Electrical Engineering IIT Kanpur India Dept. of Instrumentation and Control Engineering NIT Tiruchirappali India Dept. of Electrical Engineering IIT BHU India

ISBN: (纸本)9781509038183

The paper presents techniques for navigation by Automated Guided Vehicle in two different environments to reach its destination. The environments are, a) Normal(unguided) and b) Guided. An artificial potential function is defined to seek out for goal in normal environment. Initial calculation of optimal path out of several paths from source to destination and traversing the chosen path through nodes (RF-ID tags) is the technique for guided environment. Obstacles hinder the desired movement in both the environments. Attractive and repulsive forces approach helps in avoiding obstacles in unguided environment and leads to point of minimum potential for stabilization. The reverse tracking to the previous node is the technique proposed while facing the obstacle in guided environment. On reaching the previous node, it recalculates optimal path barring the current one if obstacle is still present on that path. The results obtained show the efficacy of techniques in trajectory tracking avoiding the obstacles for both the environments. © 2016 IEEE.

关键词： Automatic guided vehicles

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A novel hybridized grey wolf optimzation for a cost optimal design of water distribution network

A novel hybridized grey wolf optimzation for a cost optimal ...

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Science and Information Conference (SAI)

作者： S. Sankaranarayanan G. Swaminathan N. Sivakumaran T. K. Radhakrishnan Dept. of Instrumentation and Control National Institute of Technology Tiruchirappalli Tiruchirappalli Tamil Nadu India Dept. of Civil Engineering National Institute of Technology Tiruchirappalli Tiruchirappalli Tamil Nadu India Dept. of Chemical Engineering National Institute of Technology Tiruchirappalli Tiruchirappalli Tamil Nadu India

ISBN: (纸本)9781509054442

In this work, a novel Hybridized Grey Wolf Optimizer (HGWO) is proposed by combining the nature inspired Grey Wolf Optimizer (GWO) and Kalman Bucy (KB) correction mechanism. The modifications are implemented in such a way that, the predicted solution obtained from the existing GWO are corrected through the KB mechanism. This improves the efficiency of searching and the rate of convergence towards the global optimum. The local optima avoidance is carried out by the implementation of Shuttling Back and forth Avoidance (SBA) algorithm. An analytical based procedure is followed to determine the learning rate of Kalman gain. The capability of exploring and exploiting the global solution of the HGWO are validated through 6 different benchmark functions. The statistical analysis over the obtained simulation results provides the significance of the HGWO algorithm. The proposed algorithm is applied to obtain a cost optimal design for two different case studies of Water Distribution Network (WDN). The results of HGWO are verified through a comparative study with well-known swarm based PSO and existing GWO algorithm.

关键词： Algorithm design and analysis Optimization Kalman filters Heuristic algorithms Convergence Prediction algorithms Nickel

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DVCCTA based PID with Grounded Passive Elements

DVCCTA based PID with Grounded Passive Elements

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2016 International Conference on Systems in Medicine and Biology, ICSMB 2016

作者： Mehrol, Mayank Goyal, Divya Varshney, Pragya Dept. of Instrumentation and Control Engineering Netaji Subhas Institute of Technology Delhi University Delhi India

ISBN: (纸本)9781467376662

This paper presents a Proportional Integral Derivative controller based on Differential Voltage Current Conveyor Transconductance Amplifier as an active element. In the proposed circuit, the PID parameters namely, Proportional gain constant, Integral time constant and Derivative time constant can be tuned electronically by varying the bias current of the circuit. All the passive elements used are grounded, making it suitable for on-chip implementation. This circuit can be utilized to realize PI and PD controller. The simulations are done in OrCAD PSPICE with 0.5?m CMOS MIETEC technology . © 2016 IEEE.

关键词： Timing circuits

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DVCCTA based PID controller with grounded passive elements 2

DVCCTA based PID controller with grounded passive elements

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2nd IEEE International Conference on Innovative Applications of Computational Intelligence on Power, Energy and controls with their Impact on Humanity, CIPECH 2016

作者： Mehrol, Mayank Goyal, Divya Varshney, Pragya Dept. of Instrumentation and Control Engineering Netaji Subhas Institute of Technology Delhi University Delhi India

ISBN: (纸本)9781467390804

关键词： Proportional control systems

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Open-source smart home modules 17

Open-source smart home modules

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17th IEEE International Carpathian control Conference, ICCC 2016

作者： Jurek, Martin Škuta, Jaromír VŠB-TU Ostrava Mechanical Engineering Faculty Dept. of Control Systems and Instrumentation Ostrava Czech Republic

ISBN: (纸本)9781467386067

The main aim of this paper is to provide open-source and open-hardware solution for home control automation systems. Final approach uses wireless communication, solar powered sensor array and simple scale-up system network and it is called HomeBeacon. System consists of one central station and multiple portable units providing the sensor array. As a control part, various action units can be implemented according to desired needs to nearby located units. HomeBeacon system is built to be energy efficient which is mainly represented by solar panels powering up each BeaconUnit and to be flexible where the aim is to provide the ability of simple scaling-up and adjustment of individual BeaconUnits to suite them for particular operation needs. © 2016 IEEE.

关键词： Temperature measurement

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V-shaped neurons in hidden layer of ANN universal approximator without flat domains

V-shaped neurons in hidden layer of ANN universal approximat...

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2016 International Joint Conference on Neural Networks, IJCNN 2016

作者： Bostik, Josef Klimt, Martin Mojzes, Matej Kukal, Jaromir Bukovsky, Ivo Cejnek, Matous Dept. of Software Engineering FNSPE Czech Technical University in Prague Prague Czech Republic Dept. of Instrumentation and Control Engineering FME Czech Technical University in Prague Prague Czech Republic

ISBN: (纸本)9781509006199

A three-layer perceptron ANN is designed to avoid difficulties during learning process. The resulting V-shaped Artificial Neural Network has universal approximation property and its learning is based on the minimization of least squares sum. The main advantage of this approach is in the absence of flat domains with a small norm of objective function gradiënt. Therefore, any optimization method which is based on local searching yields from this property of objective function. Due to multimodality of objective function in the case of ANN learning, Cuckoo Search heuristics with embedded Levy Flights was used both for V-shaped ANN learning and for the learning of MLP and RBF as referential ANNs. Time complexity and reliability of learning are demonstrated on simple example. © 2016 IEEE.

关键词： Least squares approximations

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