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arXiv 2021年

作者： Islam, Mobarakol Vibashan, V.S. Jose, V. Jeya Maria Wijethilake, Navodini Utkarsh, Uppal Ren, Hongliang NUS Graduate School for Integrative Sciences and Engineering NUS Singapore Dept. of Biomedical Engineering National University of Singapore Singapore Dept. of Instrumentation and Control Engineering NIT Tiruchirappalli India Dept. of Electronics and Telecommunications University of Moratuwa Srilanka Sri Lanka Dept. of Electrical Engineering Punjab Engineering College Chandigarh India

In this work, we develop an attention convolutional neural network (CNN) to segment brain tumors from Magnetic Resonance Images (MRI). Further, we predict the survival rate using various machine learning methods. We adopt a 3D UNet architecture and integrate channel and spatial attention with the decoder network to perform segmentation. For survival prediction, we extract some novel radiomic features based on geometry, location, the shape of the segmented tumor and combine them with clinical information to estimate the survival duration for each patient. We also perform extensive experiments to show the effect of each feature for overall survival (OS) prediction. The experimental results infer that radiomic features such as histogram, location, and shape of the necrosis region and clinical features like age are the most critical parameters to estimate the OS. Copyright © 2021, The Authors. All rights reserved.

关键词： Tumors

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Design and development of IoT based water quality measurement system 3

Design and development of IoT based water quality measuremen...

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3rd International Conference on Trends in Electronics and Informatics, ICOEI 2019

作者： Kshirsagar, Rushikesh Mudhalwadkar, R.P. Kalaskar, Saish Instrumentation and Control Dept. College of Engineering Pune India

ISBN: (纸本)9781538694398

Water is an essential need for human survival and the quality of the water always affects human health. If water is contaminated its leads to severe diseases. For the same reason, we must monitor the quality of the water. We can determine the quality of the water by measuring its parameters like pH, Conductivity and Turbidity. This paper presents the idea about low-cost IOT based portable approach for water quality measurements system. Because of its low-cost approach, everyone can afford to use it to determine quality of water. Due to IOT (internet of things), remote measurement is possible. The signal conditioning of all three sensors uses the LMC 6001 IC in a different configuration and STM32F411RE microcontroller for the data acquisition and scaling of the data. SN8200 Wi-Fi module is interfaced with a microcontroller to send data on the cloud server. While doing the experiments all three sensors are calibrated against standard solution and relationship between temperature and pH is studied. All measured data stored on the cloud database and used for further analysis of water quality. © 2019 IEEE.

关键词： Data acquisition

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A disturbance observer based sliding mode control for anti-lock braking system 2

A disturbance observer based sliding mode control for anti-l...

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2nd International Conference on Advanced Computational and Communication Paradigms, ICACCP 2019

作者： Wanaskar, Vijayraj Shendge, Pramod Phadke, Shrivijay College of Engineering Pune Dept. of Instrumentation and Control India

ISBN: (纸本)9781538679890

Nonlinearities and disturbances are two major challenges faced while designing control for vehicle anti-lock braking system. A robust disturbance observer based sliding mode controller is proposed to address these challenges. The designed controller maintains the wheel slip at desired value with optimum brake efforts. Since disturbance is estimated in real time, its bounds are not required while designing the controller. To check the robustness of the controller, simulation is performed for two-axle vehicle model braking on dry asphalt, snow and variable road condition. © 2019 IEEE.

关键词： Anti-lock braking systems

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Disturbance observer based model following controller for four wheel steering vehicles 2

Disturbance observer based model following controller for fo...

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2nd International Conference on Advanced Computational and Communication Paradigms, ICACCP 2019

作者： Chaudhari, Sushant Shendge, Pramod Phadke, Shrivijay College of Engineering Pune Dept. of Instrumentation and Control India

ISBN: (纸本)9781538679890

In this paper, performance limitations of the conventional front wheel steering (FWS) system is analyzed in order to design the controller that can improve the vehicle handling and stability. By adding steering input at the rear wheels, four wheel steering model under the influence of external crosswind disturbance acting on the vehicle is obtained. The disturbance observer (DO) based model following sliding mode controller is designed for modified steering model to achieve ideal vehicle handling. A simulation is carried out to prove the effectiveness of the proposed controller in tracking the dynamics of the system to the desired reference model. Robustness of the proposed controller is also verified against external disturbances and in tracking different steering inputs. © 2019 IEEE.

关键词： controllers

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Design and implementation of enhanced PID controller in embedded platform for realtime applications 2

Design and implementation of enhanced PID controller in embe...

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2nd International Conference on Power and Embedded Drive control, ICPEDC 2019

作者： Thomas, V. Arun Srinivasan, K. NIT-Tiruchirappalli Dept. of Instrumentation and Control Engineering India

ISBN: (数字)9781728124148

ISBN: (纸本)9781728124148

Most of the industrial processes are employed with conventional Proportional Integral Derivative controller. To keep up with the raising trends of automation, digital controller technology is employed using a low cost microcontroller to control various processes as per user requirement. This paper proposes a standalone embedded PID controller with enhanced features using an Arduino which is capable to be used for any small scale processes replacing the need of a PLC The Arduino UNO is set up in such a way that it can support plug and play functionality. The designed controller has seven variants of control schemes namely P, PI, PI with Anti-reset windup, PID, PID with anti-reset windup, Process Variable - derivative (PV-d), PV-d with anti-reset windup controllers. The real time validation of proposed closed loop control schemes is demonstrated using a series RLC circuit and the results of all variants of controller reveal that the design can achieve proper and effective control. The advantages of this design include low power consumption, simple structure and convenient installation. © 2019 IEEE.

关键词： controllers

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Internal Model controller to Attenuate Periodic Disturbance of a First-Order Time-Delay System

Internal Model Controller to Attenuate Periodic Disturbance ...

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2021 European control Conference, ECC 2021

作者： Kutlu Yuksel, Can Busek, Jaroslav Niculescu, Silviu-Iulian Vyhlidal, Tomas Université Paris-Saclay CNRS CentraleSupélec Inria Laboratoire Des Signaux Et Systèmes Gif-sur-Yvette91192 France Czech Technical University In Prague Faculty of Mechanical Engineering Dept. of Instrumentation and Control Eng. Praha 6166 07 Czech Republic

ISBN: (纸本)9789463842365

A controller design based on the internal model control principle is introduced as an alternative to the repetitive control structure to attenuate the periodic disturbance. Such a disturbance phenomenon is observed for example in hot rolling mills due to roll eccentricity and is considered here as a motivation example. The emphasis is on the analytic design of the filter and on the time-delay parameter within the controller. By these two components, the controller action is tuned to achieve a zero gain and synchronized time shift to compensate completely the periodic disturbance. The overall procedure is validated by simulations on a model identified from real process data. © 2021 EUCA.

关键词： controllers

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Ensemble Deep Learning Models for ECG-based Biometrics

Ensemble Deep Learning Models for ECG-based Biometrics

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Cybernetics & Informatics (K&I)

作者： Yeong-Hyeon Byeon Sung-Bum Pan Keun-Chang Kwak Dept. of Control and Instrumentation Engineering Chosun University Gwangju Korea

ISBN: (数字)9781728143811

ISBN: (纸本)9781728143828

In this paper, we study ensemble intelligent system for individual identification using ECG (electrocardiogram) signal by combining several time-frequency representations and CNN models. The ECG signal is a bio-signal that measures the minute potential difference generated by heart activity through the skin of the body surface. ECG signals have an advantage in personal identification because the source of the signal is hidden inside the body and the measurement equipment is inexpensive. However the ECG signals are sensitive to noise. Time-frequency representation gives observation of frequency changes in signal over time and allows robust analysis of noise. The log-spectrogram, mel-spectrogram, spectrogram, MFCC(Mel Frequency Cepstral Coefficient), and scalogram are considered as time-frequency representations. CNN(Convolutional Neural Network) is a neural network designed to enable feature extraction and classification of images to be learned in a single structure. Xception, ResNet, and DenseNet are famous models in CNN and are used in this study. PTB (Physikalisch-Technische Bundesanstalt)-ECG database is used for experiment. The ensemble CNNs have shown higher than single CNN.

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High-Performance Nonlinear control for Three-Phase Two-Level Boost PFC Rectifier

High-Performance Nonlinear Control for Three-Phase Two-Level...

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Materials and Energy: Energy in Electrical engineering (ICOME-EE), International Conference on

作者： Songklod Sriprang Babak Nahid-Mobarakeh Noureddine Takorabet Serge Pierfederici Apinya Siangsanoh Kanapot Yodmanee Pongsiri Mungporn Phatiphat Thounthong Nitchamon Poonnoy Nicu Bizon Thong-In Suyata Sakrit Noosawang GREEN-ENSEM Laboratory Université de Lorraine France Rattanakosin Wang Klai Kangwon Campus Petchkasem RD Rajamangala University of Technology Prachuap Khiri Khan Thailand LEMTA Laboratory Université de Lorraine France Renewable Energy Research Centre (RERC) Thai-French Innovation Institute King Mongkut’s University of Technology North Bangkok Bangkok Thailand Dept. Teacher Training in Electrical Engineering Faculty of Technical Education Faculty of Electronics Communication and Computers University of Pitesti Pitesti Romania Department of Electrical Engineering Faculty of Rajamangala University of Technology Thailand Dept. of Control System and Instrumentation Engineering Faculty of Engineering King Mongkut’s University of Technology Thonburi Bangkok Thailand

ISBN: (数字)9798331531577

ISBN: (纸本)9798331531584

This paper presents a high-performance nonlinear control strategy for a three-phase, two-level boost Power Factor Correction (PFC) rectifier. The proposed control method aims to achieve superior performance in terms of power factor correction, output voltage regulation, and dynamic response under various operating conditions. Utilizing advanced nonlinear control techniques, the system ensures optimal tracking of the reference signals, minimizing total harmonic distortion (THD) and improving overall efficiency. The effectiveness of the control strategy is validated through extensive simulations and experimental results, demonstrating significant improvements in the transient and steady-state performance of the rectifier. This approach provides a robust and efficient solution for PFC applications in modern power electronics systems.

关键词： Electrical engineering Dynamic response Total harmonic distortion Rectifiers Power factor correction control systems Power electronics Steady-state Voltage control Transient analysis

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Stabilization with Zero Location Constraints for Delay-Based Non-collocated Vibration Suppression ⁎

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IFAC-PapersOnLine 2021年第18期54卷 121-126页

作者： Haik Silm Wim Michiels Tomáš Vyhlídal Departement of Computer Science KU Leuven Celestijnenlaan 200A 3001 Leuven Belgium Dept. Instrumentation and Control Engineering Faculty of Mechanical Engineering and Czech Institute of Informatics Robotics and Cybernetics Czech Technical University in Prague Prague 6 Czechia

A generally applicable design of non-collocated vibration absorption by a delayed resonator is proposed. It is grounded in the direct assignment of imaginary axis zeros of the transfer function between the periodic disturbance force and the target. We show that these transmission zeros are characterized as eigenvalues of a delay differential-algebraic system. Furthermore, a stabilizing local controller is added to the setup in order to widen the range of admissible vibration frequencies. These design requirements are translated into an optimization problem of the spectral abscissa function subjected to zero location constraints. The presented approach and algorithm are validated by a simulation on a three body lumped mass-spring system.

关键词： Vibration control Delayed resonator Transmission zeros Stability Spectral method

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Super Capacitor Based Energy Recovery System from Regenerative Braking used for Electric Vehicle Application

Super Capacitor Based Energy Recovery System from Regenerati...

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2019 IEEE International Conference on Clean Energy and Energy Efficient Electronics Circuit for Sustainable Development, INCCES 2019

作者： Guruvareddiyar, Gurusivakumar Ramaraj, Ramachandran Kalasalingam Academy of Research and Education Dept. of Instrumentation and Control Engineering India

ISBN: (数字)9781728144078

ISBN: (纸本)172814406X

Electric vehicles, when it is running in frequent start and stop pattern in urban road condition, significant amount of energy is wasted in wheels during braking. Instead of wasting energy, the kinetic energy can be converted into electrical energy and stored in super capacitors. The super capacitors are electric double layer capacitors with rating of farads. The stored energy can be re used, thus supporting batteries to supply the peak power demand. The bidirectional converter is proposed to charge and discharge the super capacitor. By using proposed method, the energy recovery and efficiency of overalldrivehasbeenimproved. The simulation has been done and results were plotted to verify the proposedtopology. © 2019 IEEE.

关键词： Supercapacitor

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