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21st International Conference on System Theory, control and Computing, ICSTCC 2017

作者： Vilanova, R. Pedret, C. Barbu, M. Department of Telecomunications and Systems Engineering School of Engineering. Universitat Autonoma Barcelona Bellaterra Barcelona08193 Spain Dept. Automatic Control and Electrical Eng. Dunarea de Jos University of Galati. Galati800008 Romania

ISBN: (纸本)9781538638422

This work faces the problem of frequency deviation in microgrid systems. The considered microgrid includes renewable energy sources such as wind and solar photovoltaic. As long as these sources provide an irregular power supply or there is a sudden change in the system load, the power system frequency deviates. In order to compensate such deviations, alternative, conventional energy sources should be commanded in order to provide the corresponding power deficit. In this paper a very simple and of common industrial practice control approach such as the Internal Model control based on first order plus time delay models is proposed to tune a PI controller. As the commanded energy sources are based on fuel consumption, the control usage has to be maintained at low levels. It is shown that the PI control approach is able to provide accurate frequency deviation control with very low movements for the control signal. Time domain simulations show the effectiveness of the approach as compared with other more sophisticated controllers (Fractional order PID) already proposed in the literature. © 2017 IEEE.

关键词： controllers

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controlling THD and Selective Harmonic in Multi-Level Inverters Using Multi-Carrier PWM Switching

Controlling THD and Selective Harmonic in Multi-Level Invert...

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International Conference on Environment and Electrical engineering (EEEIC)

作者： Reza Farid Ghasemnia Mohamadreza Faridghasemnia Zahra Arabkhazaeli Department of Electrical and Control Engineering MAPNA Group Karaj Iran DIAG-Dept. of Computer University of Rome Rome Italy Scientific Consultation T. F. Bina Ltd. Tehran Iran

Inverters are a bridge for DC resources that want to supply AC loads. They can be connected to different resources such as batteries or solar panel on their DC side, and through their AC terminal, get connected to different type of AC loads and supply them. Due to high flexibility in the layout design of multilevel inverters, these inverters are used widely in various applications. One of the most common applications of multi-level inverters is in microgrids, where DC resources with different characteristics and most probably, unstable voltage exists. In general voltage output of inverters, are problematic and might be not close to an ideal sinusoid. Using different types of resources for connecting them to DC side of inverters, cause different harmonics that their amplitude and THD changes in the different situation. Considering real-world DC resources, where their voltage might change suddenly or over time, the problem of controlling harmonics and THD dynamically is more significant. In this paper for overcoming these harmonics under instability, a new comprehensive algorithm has been introduced by using closed-loop PI controller in multi-carrier power width modulation switching that can control the selected harmonics, or lower the produced THD, in both steady DC voltage and unstable situations such as voltage unbalancing of DC resources.

关键词： Harmonic analysis Inverters Pulse width modulation Switches Power harmonic filters

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Research assessment: A contribution to solving the publication credit allocation problem 2

Research assessment: A contribution to solving the publicati...

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2nd Young Scientist's International Workshop on Trends in Information Processing, YSIP2 2017

作者： Schaerf, Marco Dept. of Computer Control and Management Engineering Antonio Ruberti Sapienza University of Rome Italy Institute of Information Technologies and Telecommunications North Caucasus Federal University Stavropol Russia

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COACHES: An assistance multi-robot system in public areas

COACHES: An assistance multi-robot system in public areas

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2017 European Conference on Mobile Robots, ECMR 2017

作者： Jeanpierre, L. Mouaddib, A.-I. Locchi, L. Lazaro, M.T. Pennisi, A. Sahli, H. Erdem, E. Demirel, E. Patoglu, V. GREYC Lab University of Caen France Dept. of Computer Control and Management Engineering Sapienza University of Rome Italy Vrije Universiteit Brussel Belgium Sabanci University Turkey

ISBN: (纸本)9781538610961

In this paper, we present a robust system of self- directed autonomous robots evolving in a complex and public spaces and interacting with people. This system integrates highlevel skills of environment modeling using knowledge-based modeling and reasoning and scene understanding with robust image and video analysis, distributed autonomous decision- making using Markov decision process and Petri-Net planning, short-term interacting with humans and robust and safe navigation in overcrowding spaces. This system has been deployed in a variety of public environments such as a shopping mall, a center of congress and in a lab to assist people and visitors. The results are very satisfying showing the effectiveness of the system and going beyond just a simple proof of concepts. © 2017 IEEE.

关键词： Petri nets

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USMED and Surgery Assist: IMAGO MOL Cluster Biomedical Solutions to Improve Patient Imaging Availability and Noninvasive Diagnosis

USMED and Surgery Assist: IMAGO MOL Cluster Biomedical Solut...

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E-Health and Bioengineering Conference (EHB)

作者： Vlad Ghizdovat Lucian Nita Paul Herghelegiu Simona Caraiman Alina Capitanu Carmeni Mihai Cati Stolniceanu Jalloul Wael Delia Ciobanu Lidia Ionescu Irena-Cristina Grierosu Cipriana Stefanescu Biophysics Dept. “Grigore T. Popa” University of Medicine and Pharmacy Iaşi Romania SC ROMSOFT SRL Iasi Romania Faculty of Automatic Control and Computer Engineering “Gheorghe Asachi” Technical University of Iasi Iasi Romania North East RDA Piatra Neamt Romania Imago-Mol Cluster Iaşi Romania “Sf. Spiridon” Emergency County Hospital Nuclear Medicine Laboratory Iasi Romania Department of Pathology “Grigore T. Popa” University of Medicine and Pharmacy Iaşi Romania 3rd Surgery Department “Sf. Spiridon” Emergency County Hospital Iasi Romania Imago Mol Cluster “Grigore T. Popa” University of Medicine and Pharmacy Iaşi Romania

For patient well-being and also for cost efficiency, constantly improving the medical act is essential. All patients undergo a set of medical tests before going into surgery. In some cases, these tests have to be repeated in different hospitals due to the lack of a system that facilitates presenting and sharing patient's data. We present two e-Health solutions for hospitals and clinics in the medical data field. Our aim was to design and implement a unique system for medical data management. This system allows easy data transfer between medical facilities. It also improves the medical diagnostic and treatment process and it increases the quality of medical care. Also, it improves the communication between patients and physicians, decreases the duration and costs of hospitalization and improves the patient's quality of life. The second medical solution presented in this paper present the results of the medical tests directly to a screen in the operating room, further reducing the time a patient has to wait before going into surgery and also improving the medical act. Both medical solutions were tested in real-world scenarios with promising results.

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Removed: VitSeg: Weakly supervised vitiligo segmentation in skin image

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computerized medical imaging and graphics : the official journal of the computerized Medical Imaging Society 2020年 85卷 101779页

作者： Zhangxing Bian Siyu Xia Chao Xia Ming Shao Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation Southeast University Nanjing China Electrical Engineering and Computer Science University of Michigan Ann Arbor MI USA. Electronic address: jasonbian.zx@***. Key Laboratory of Measurement and Control of CSE Ministry of Education School of Automation Southeast University Nanjing China. Electronic address: xsy@***. School of Electronics Information and Electrical Engineering ShangHai Jiao Tong University Shanghai China. Electronic address: xiabc612@***. Dept. of Computer and Information Science University of Massachusetts Dartmouth Dartmouth MA USA. Electronic address: mshao@umassd.edu.

This article has been removed: please see Elsevier Policy on Article Withdrawal (https://***/about/our-business/policies/article-withdrawal). This article has been removed at the request of the Authors and Editor-in-Chief because complete consent was not obtained by the authors in accordance with journal policy prior to publication. The authors and the journal sincerely apologize for this oversight.

关键词： Convolutional neural network Saliency propagation Skin lesion Vitiligo Weakly supervised segmentation

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Kalman filtering of distributed time series

arXiv

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arXiv 2017年

作者： Stefanoiu, Dan Culita, Janetta "Politehnica" University of Bucharest Dept. of Automatic Control and Computer Science 313 Splaiul Independentei Bucharest060032 Romania

This paper aims to introduce an application to Kalman Filtering Theory, which is rather unconventional. Recent experiments have shown that many natural phenomena, especially from ecology or meteorology, could be monitored and predicted more accurately when accounting their evolution over some geographical area. Thus, the signals they provide are gathered together into a collection of distributed time series. Despite the common sense, such time series are more or less correlated each other. Instead of processing each time series independently, their collection can constitute the set of measurable states provided by some open system. Modeling and predicting the system states can take benefit from the family of Kalman filtering algorithms. The article describes an adaptation of basic Kalman filter to the context of distributed signals collections and completes with an application coming from Meteorology. Copyright © 2017, The Authors. All rights reserved.

关键词： Kalman filters

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Event-based selective control strategy for raceway reactor: A simulation study

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IFAC-PapersOnLine 2016年第7期49卷 478-483页

作者： Pawlowski, A. Frenández, I. Guzmán, J.L. Berenguel, M. Acién, F.G. Dormido, S. Dept. of Computer Science and Automatic Control UNED Madrid Spain Dept. of Computer Science University of Almería ceiA3 CIESOL Almería Spain Dept. of Chemical Engineering University of Almería ceiA3 CIESOL Almer´ia Spain

This work presents a simulation study of an event-based selective control strategy for a raceway reactor. The control system aims are to maintain simultaneously a pH and dissolved oxygen within specific limits. In the analyzed control scheme, the pH value is prioritized over the dissolved oxygen, since it has a critical influence on the process performance. Besides, the dissolved oxygen also influences the photosynthesis rate and should be kept within the limits. The control structure is evaluated through simulation, where a nonlinear model for microalgae culture in the raceway photobioreactor is used. Analysis of different configurations allows to determine the most adequate control system setup to achieve the desired goals. The obtained results show that combination of an event-based approach with selective control allows to increase the overall productivity as well as to address effective CO2utilization and aeration system energy minimization. © 2016

关键词： Dissolved oxygen Algae control systems Dissolution Microorganisms Dissolved oxygen control Micro algae PH control raceway reactor Selective control

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A neural network for predicting unintentional lane departures

A neural network for predicting unintentional lane departure...

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2017 IEEE International Conference on Industrial Technology, ICIT 2017

作者： Ambarak, Jamaa M. Ying, Hao Syed, Fazal Filev, Dimitar Dept. of Electrical and Computer Engineering Wayne State University DetroitMI United States Hybrid Electric Vehicle Control System Ford Motor Company DearbornMI United States

ISBN: (纸本)9781509053209

Unintended lane departure accidents are due to driver's inattention, incapacitation, and drowsiness. Lane departure warning systems have been developed to enhance traffic safety by predicting/detecting driving situation and alerting drivers to avoid or mitigate traffic accidents. This paper explores effectiveness of a three-layer perceptron neural network in predicting an unintentional lane departure, which to the best of our knowledge has not been reported in the literature. This study used driver experiment data generated by VIRTTEX, a hydraulically powered 6-degrees-of-freedom moving base driving simulator at Ford Motor Company. The experimental data represented 16 drowsy drivers who drove a simulated 2000 Volvo S80 (three hours per driver), which consisted of a total of 3,508 lane departure occurrences. Two-third of the lane departures were randomly selected to generate training examples for the network (82,040 examples for a 0.2-second prediction horizon and 171,112 for a 0.5-second horizon). The number of hidden neurons as well as the input vehicle variables were optimized experimentally through the training process. The optimized network was then used to predict lane departure by processing the entire driving time series of the 16 drivers one by one after all the training data was removed from the time series. The network made a prediction at each sampling moment of the time series and there were over 6.3 million predictions. The overall recall and precision of the optimized network for the 0.2-second horizon were 99.74% and 99.66%, respectively, which degraded to 99.23% and 85.49%, respectively, when the horizon increased to 0.5 s. © 2017 IEEE.

关键词： Forecasting

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Development of Constrained Predictive Functional control using Laguerre Function Based Prediction

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IFAC-PapersOnLine 2017年第1期50卷 10705-10710页

作者： Abdullah M. Rossiter J.A. Haber R. Department of Automatic Control and System Engineering University of Sheffield Mappin StreetS1 3JD United Kingdom Dept. of Mech. Engin. International Islamic University Malaysia Institute of Process Engineering and Plant Design Cologne University of Applied Sciences Köln D-50679 Germany

This work presents a novel constraint handling strategy for Predictive Functional control (PFC). First, to improve prediction consistency, the constant input assumption of nominal PFC approaches is replaced with Laguerre based prediction. This substitution improves the effectiveness of using a constrained solution to prevent long-term constraint violations. Secondly, for state constraints, a simpler single regulator approach is proposed instead of switching between regulators, an approach common in the PFC literature. Simulation results verify that the proposed method manages the constraints better than the traditional approach. Moreover, despite all the modifications, the controller formulation and framework remain simple and straightforward which thus are in line with the key ethos of PFC. © 2017

关键词： Constrained PFC Effective Constraint Technique Predictive control

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