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Embedded linear model predictive control for 8-bit microcontrollers via convex lifting

IFAC-PapersOnLine 2017年第1期50卷 10697-10704页

作者： Gulan M. Takács G. Anh Nguyen N. Olaru S. Rodriguez-Ayerbe P. Rohaľ-Ilkiv B. Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology in Bratislava Námestie slobody 17 Bratislava 812 31 Slovakia Institute for Design and Control of Mechatronical Systems Johannes Kepler University Linz Altenberger Straße 69 Linz A-4040 Austria Laboratory of Signals and Systems CentraleSupélec-CNRS-Univeristé Paris Sud Univeristé Paris-Saclay 3 rue Joliot Curie Gif-sur-Yvette 911 90 France

This paper demonstrates an efficient approach for the implementation of parametric programming solutions to linear model predictive control problems. The emphasis is put namely on embedded hardware applications where feasible size and online evaluation of the controller code can be mission critical. As the explicit solutions are known to become quickly intractable for such a purpose once the amount of problem data grows, we exploit the concept of convex lifting of a given parameter space partition, and use it to avoid its storage and to replace the traditional point location with a significantly less costly procedure. In this light we practically illustrate the deployment of generated code on an 8-bit microcontroller unit, representing the class of low-cost embedded controllers built into mass-produced devices, in an active vibration suppression case study accompanied by a detailed performance, memory and timing analysis. © 2017

关键词： complexity reduction convex lifting explicit solution microcontroller real-time embedded predictive control

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Impact of Contaminants in Motor Oil on the Wear of Aluminum Parts of the Internal Combustion Engine

Manufacturing Technology

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Manufacturing Technology 2017年第5期17卷 4-5页

作者： Aleš, Zdeněk Pavlů, Jindřich Svobodová, Jaroslava Kučera, Marián Hromasová, Monika Pexa, Martin Faculty of Engineering Czech University of Life Sciences Prague Department for Quality and Dependability of Machines Kamýcká 129 Prague 6 – Suchdol 165 21 Czech Republic Faculty of Mecahnical Engineering Jan Evangelista Purkyně University in Ústí nad Labem Pasteurova 7 Ústí nad Labem400 96 Czech Republic Faculty of Environmental and Manufacturing Technology Technical University in Zvolen Department of Mechanics Mechanical Engineering and Design Študentská 26 Zvolen960 53 Slovakia Faculty of Engineering Czech University of Life Sciences Prague Department of Electrical Engineering and Automation Kamýcká 129 Prague 6 – Suchdol 165 21 Czech Republic

The design of internal combustion engine use plain bearings, pistons and piston-rod which are based on aluminium, brass. Further are used steels with coating based on aluminium and bronze. The paper describes the impact of contaminants in motor oil on wear of materials, which are used in production of parts of internal combustion engine. Reichert tester M2 for evaluation the lubricity from Petrotest Company was used in order to assess ability of motor oils to create proper lubricating film. Reichert tester M2 belongs to a group of equipment simulating real frictional contact. Wear particles come into oil in lubrication system, where they cause contamination and degradation of lubricating properties and consequently it may result in major failure of machines. Among these contaminants are included mainly water, fuel, water coolant, adhesive, abrasive and fatigue particles wear. The aim of research was focused only on oil contaminated with fuel including petrol, diesel and biobutanol. Copyright © 2017. Published by Manufacturing Technology. All rights reserved.

关键词： Combustion

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Research on water level gauge image identification based on intelligent remote viewing 28

Research on water level gauge image identification based on ...

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28th Chinese Control and Decision Conference, CCDC 2016

作者： Zhang, Changsheng Feng, Guang Liu, Ziyu Sun, Bin Zhang, Hanping Faculty of Information Engineering and Automation Kunming University of Science and Technology Kunming650500 China China Energy Engineering Group Yunnan Electric Power Design Institute Co. Ltd Kunming650051 China

ISBN: (纸本)9781467397148

To research water level gauge image identification based on intelligent remote viewing system which can replace the on-duty staff observing, an improved Otsu algorithm is proposed to realize higher identification accuracy. The new Gaussian difference filter is also applied to image edge detection for later period clearly dividing and extracting the liquid level and the scale numbers of water level gauge so that the liquid level scale can be obtained fast and accurately. The result of the experiment shows that the proposed intelligent remote viewing system and algorithms not only have higher intelligent degree, but also can improve apparently image identification effect. © 2016 IEEE.

关键词： image identification improved Otsu algorithm intelligent remote viewing

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Thermal design of a magnet-free axial-flux switch reluctance motor for automotive applications 11

Thermal design of a magnet-free axial-flux switch reluctance...

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11th International Conference on Ecological Vehicles and Renewable Energies, EVER 2016

作者： Chong, Yew Chuan Staton, Dave Egana, Imanol De Argandona, Ismael Ruiz Egea, Aritz Motor Design Ltd. EllesmereSY12 0EG United Kingdom IK4-Tekniker Department of Automation and Control Eibar Spain Faculty of Engineering University of Mondragon Mondragon Spain

ISBN: (纸本)9781509024643

With the requirement to develop magnet-free motors for automotive application, more design effort is needed for thermal design as the machine temperature limits the motor performance. Thermal design procedure of automotive motor has to fully exploit the modern approaches in electrical machine thermal analysis in terms of accuracy and solving time. This paper proposes a computational-cost-effective way to obtain the optimum thermal design of an axial-flux switched reluctance motor by means of lumped circuit methods with some inputs from Computational Fluid Dynamic simulations. © 2016 IEEE.

关键词： Thermoanalysis

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Research on Water Level Gauge Image Identification Based on Intelligent Remote Viewing

Research on Water Level Gauge Image Identification Based on ...

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第28届中国控制与决策会议

作者： Changsheng Zhang Guang Feng Ziyu Liu BinSun Hanping Zhang Faculty of Information Engineering and Automation Kunming University of Science and Technology China Energy Engineering Group Yunnan Electric Power Design Institute Co. Ltd

ISBN: (纸本)9781467397155

To research water level gauge image identification based on intelligent remote viewing system which can replace the on-duty staff observing,an improved Otsu algorithm is proposed to realize higher identification *** new Gaussian difference filter is also applied to image edge detection for later period clearly dividing and extracting the liquid level and the scale numbers of water level gauge so that the liquid level scale can be obtained fast and *** result of the experiment shows that the proposed intelligent remote viewing system and algorithms not only have higher intelligent degree,but also can improve apparently image identification effect.

关键词： intelligent remote viewing image identification improved Otsu algorithm

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Publisher Correction: The Scales Project, a cross-national dataset on the interpretation of thermal perception scales

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Scientific data 2020年第1期7卷 11页

作者： Marcel Schweiker Amar Abdul-Zahra Maíra André Farah Al-Atrash Hanan Al-Khatri Rea Risky Alprianti Hayder Alsaad Rucha Amin Eleni Ampatzi Alpha Yacob Arsano Montazami Azadeh Elie Azar Bannazadeh Bahareh Amina Batagarawa Susanne Becker Carolina Buonocore Bin Cao Joon-Ho Choi Chungyoon Chun Hein Daanen Siti Aisyah Damiati Lyrian Daniel Renata De Vecchi Shivraj Dhaka Samuel Domínguez-Amarillo Edyta Dudkiewicz Lakshmi Prabha Edappilly Jesica Fernández-Agüera Mireille Folkerts Arjan Frijns Gabriel Gaona Vishal Garg Stephanie Gauthier Shahla Ghaffari Jabbari Djamila Harimi Runa T Hellwig Gesche M Huebner Quan Jin Mina Jowkar Renate Kania Jungsoo Kim Nelson King Boris Kingma M Donny Koerniawan Jakub Kolarik Shailendra Kumar Alison Kwok Roberto Lamberts Marta Laska M C Jeffrey Lee Yoonhee Lee Vanessa Lindermayr Mohammadbagher Mahaki Udochukwu Marcel-Okafor Laura Marín-Restrepo Anna Marquardsen Francesco Martellotta Jyotirmay Mathur Gráinne McGill Isabel Mino-Rodriguez Di Mou Bassam Moujalled Mia Nakajima Edward Ng Marcellinus Okafor Mark Olweny Wanlu Ouyang Ana Ligia Papst de Abreu Alexis Pérez-Fargallo Indrika Rajapaksha Greici Ramos Saif Rashid Christoph F Reinhart Ma Isabel Rivera Mazyar Salmanzadeh Karin Schakib-Ekbatan Stefano Schiavon Salman Shooshtarian Masanori Shukuya Veronica Soebarto Mohammad Tahsildoost Federico Tartarini Despoina Teli Priyam Tewari Samar Thapa Maureen Trebilcock Jörg Trojan Ruqayyatu B Tukur Conrad Voelker Yeung Yam Liu Yang Gabriela Zapata-Lancaster Yongchao Zhai Yingxin Zhu Zahra Sadat Zomorodian Building Science Group Karlsruhe Institute of Technology Englerstr. 7 76131 Karlsruhe Germany. marcel.schweiker@kit.edu. WIN-Kolleg Thermal comfort and pain Heidelberg Academy of Sciences and Humanities Karlstr. 4 69117 Heidelberg Germany. marcel.schweiker@kit.edu. Mechanical Engineering Department University of Technology Iraq Al sinaea 10066 Baghdad Iraq. CTC/Department of Civil Engineering Federal University of Santa Catarina Rua João Pio Duarte Silva s/n. Córrego Grande 88.040-901 Florianópolis SC Brazil. School of Architecture and Built Environment German Jordanian University Darat Othman Bdeir 11180 Amman Jordan. Civil and Architectural Engineering Department Sultan Qaboos University Al-Khod P.O. Box: 33 PC: 123 Muscat Oman. Laboratory of Building Technology Department of Architecture Institut Teknologi Bandung Ganesha 10 40132 Bandung Indonesia. Department of Building Physics Bauhaus-University Weimar Coudraystr. 11A 99423 Weimar Germany. Energy & Climate Change Group Faculty of Engineering & Physical Sciences University of Southampton University Road SO17 1BJ Southampton United Kingdom. Welsh School of Architecture Cardiff University King Edward VII Avenue CF10 3NB Cardiff United Kingdom. Department of Architecture Massachusetts Institute of Technology Massachusetts Ave 02139 Cambridge United States of America. Faculty of Engineering Environment and Computing BNE Research Centre Coventry University Gulson road CV1 2JH Coventry United Kingdom. Industrial and Systems Engineering Khalifa University Masdar Campus Building 1B 54224 Abu Dhabi United Arab Emirates. Architecture University of Tehran Kish International Campus Niyayesh St. Mirmohanna Blvd 79416-55665 Kish Iran. Department of Architecture Ahmadu Bello University Zaria Nigeria Samaru Zaria Nigeria. WIN-Kolleg Thermal comfort and pain Heidelberg Academy of Sciences and Humanities Karlstr. 4 69117 Heidelberg Germany. Department of Cognitive and Clinical Neurosci

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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Construction of convex liftings based on halfspace representation

Construction of convex liftings based on halfspace represent...

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American Control Conference

作者： N. A. Nguyen S. Olaru P. Rodriguez-Ayerbe M. Gulan the Institute for Design and Control of Mechatronical Systems Johannes Kepler University Linz Austria the Laboratory of Signals and Systems (L2S UMR CNRS 8506) CentraleSupélec-CNRS-Université Paris Sud 3 rue Joliot Curie Plateau de Moulon 91192 Gif-sur-Yvette France. Sorin. Olaru the Institute of Automation Measurement and Applied Informatics Faculty of Mechanical Engineering Slovak University of Technology Bratislava Slovakia

ISBN: (纸本)9781509045839

This paper presents a new algorithm to construct convex lifting for a given polyhedral partition whenever it exists. This algorithm exclusively relies on the halfspace representation of the regions in the respective partition. Also, this algorithm is applicable for the general polyhedral partitions of polyhedra, and thus overcomes the limitation on the polytopic partitions of the existing algorithm based on the vertex representation. Finally, the importance of the proposed algorithm is clarified via some numerical examples, in particular in implementation of piecewise affine controllers. Accordingly, the convex lifting concept is shown to be useful to both avoid storing the state-space partition and to facilitate the online evaluation.

关键词： whenever exists algorithm

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Thermal design of a magnet-free axial-flux switch reluctance motor for automotive applications

Thermal design of a magnet-free axial-flux switch reluctance...

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International Conference on Ecological Vehicles and Renewable Energies (EVER)

作者： Yew Chuan Chong Dave Staton Imanol Egaña Ismael Ruiz de Argandoña Aritz Egea Motor Design Ltd. Ellesmere U.K. IK4-Tekniker Department of Automation and Control Eibar Spain Faculty of Engineering University of Mondragon Mondragon Spain

关键词： Coils MATLAB Computational modeling Mathematical model Heating

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Online platform for conducting responsible research and innovations

Online platform for conducting responsible research and inno...

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International Conference on Research Challenges in Information Science, RCIS

作者： Mohamad Ajami Louisa Grabner Giovanni Giambene Van Le Doanh Luong John Pearson Automation Technology Fraunhofer-Institute for Production Systems and Design Technology (IPK) Berlin Germany Department of Information Engineering and Mathematical Sciences University of Siena Siena Italy Faculty of Computer Science University of Namur Namur Belgium

ISBN: (纸本)9781479987115

This paper deals with the implementation of an online platform for Responsible Research and Innovation (RRI), which provides anticipatory and deliberative tools to address societal expectations with regard to resrarch and innovation and mobilises information technology tools for inclusive, responsive and sustainable research. In particular, we have developed a Forum, which is a Web-based application and service for stakeholders (members of the RRI community) to deliberate and discuss about RRI. Different interaction modalities are supported by the Forum, such as: `Caucus Process', Suggestion Board, Partnership Initiative, etc. A special attention is devoted to the Citizen Jury and Tacit Knowledge modules that represent innovative features of our Forum. The outcomes show that our online Forum represents an effective solution to address RRI issues by adopting e-Government and knowledge management approaches. This work was carried out as part of EU FP7 Responsibility project.

关键词： Rail to rail inputs Technological innovation Stakeholders Electronic mail Electronic government Knowledge management Computer science

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Stability of Drugs Used in Helicopter Air Medical Emergency Services: An Exploratory Study

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Air Medical Journal 2016年第4期35卷 247-250页

作者： De Winter, Sabrina Bronselaer, Koen Vanbrabant, Peter Blanchaert, Bart Mansour, Marwa F. Brandolisio, Daniele De Jonge, Stijn Slaets, Peter Sas, Paul Van Schepdael, Ann Spriet, Isabel Department of Pharmaceutical and Pharmacological Sciences KU Leuven University of Leuven University Hospitals Leuven Leuven Belgium Department of Emergency Medicine KU Leuven University of Leuven University Hospitals Leuven Leuven Belgium Department of General Internal Medicine KU Leuven University of Leuven University Hospitals Leuven Leuven Belgium Department of Pharmaceutical and Pharmacological Sciences Pharmaceutical Analysis KU Leuven University of Leuven Leuven Belgium Department of Mechanical Engineering Production Engineering Machine Design and Automation (PMA) Section KU Leuven University of Leuven Leuven Belgium Faculty of Engineering Technology KU Leuven GROEP T Leuven Belgium

Objective Transportation by air exposes drugs used in emergency medical services to vibrations. The aim of the study was to determine whether or not vibrations caused by a helicopter induce the degradation of 5 drugs used in this setting. Methods A longitudinal study in an operating medical helicopter along with a worst case was conducted. The studied drugs were 3 drugs labeled for refrigeration (cisatracurium, lorazepam, and succinylcholine) and 2 albumin solutions (human albumin 4% and 20%). These drugs were stored for 4 months according to the following conditions: inside a helicopter, worst case with exposure to extreme vibrations, at room temperature, and according to manufacturers’ recommendations. Samples were analyzed with validated high-performance liquid chromatography assay methods. A drug was considered stable if the remaining drug content was above 90% of the label claim. Except for the albumin solutions, visual inspection was used to determine instability by the formation of aggregates. Results Only the samples stored at room temperature became unstable after 4 months. No difference in extreme foaming was observed in the albumin solutions. Conclusions These data suggest that the effect of degradation of drugs caused by vibrations is negligible. Temperature was observed as the main cause of drug degradation. © 2016

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