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International Conference on control systems and Computer Science (CSCS)

作者： C. Nitu Alexandru Dumitrascu V.F. Krapivin V.Yu. Soldatov C.A. Varotsos A.P. Cracknell Automatic Control and System Engineering Faculty of Automatic Control and Computers UPB Bucharest Romania Romania Automatic Control and System Engineering Faculty of Automatic Control and Computers UPB Bucharest Romania Faculty of Physics Department of Applied Physics Laboratory of Upper Air University of Athens Athens Greece Department of Applied Physics Laboratory of Upper Air Athens Greece Electronics Russian Academe of Sciences Kotelnokov's Institute of Radioengineering Russian Federation Department of Applied Physics and Electronic Engineering University of Dundee Dundee UK

ISBN: (纸本)9781467361408

It has been recently suggested that concrete processes occurring on the Sun (e.g. sunspots) significantly affect the tropical cyclogenesis. Despite this finding the current understanding of the processes that generate tropical cyclones is still limited. We herewith present a new complex monitoring tool for the collection and storage of relevant environmental information to solve the problem of the tropical cyclone prediction. More specifically, a three-level methodology for making decisions on the dynamical evolution of the ocean-atmosphere system is suggested. This methodology is based on a recently proposed environmental instability indicator and the use of sequential analysis process within which a stage of training is established, when all boundaries are located. Effectiveness of this methodology is assessed by examination of several examples of tropical hurricanes. More specifically, it is demonstrated how this tool can be employed to monitor the tropical hurricanes, like Katrina (2005), Irene (2011) and Isaac (2012).

关键词： Hurricanes Tropical cyclones Monitoring Meteorology Sequential analysis Algorithm design and analysis Satellites

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An application of Neural Network for paraplegic quadriceps muscle model

An application of Neural Network for paraplegic quadriceps m...

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International Colloquium on Signal Processing & Its Applications, CSPA

作者： S. M. Salleh R. Jailani M. O. Tokhi Faculty of Electrical Engineering Universiti Teknologi MARA Shah Alam Selangor Malaysia Department of Automatic Control and System Engineering University of Sheffied UK

This paper presents the development of quadriceps muscle model based on Functional Electrical Stimulation (FES). Artificial Neural Network (ANN) were used to study the impact of stimulation frequency, pulse width and pulse duration towards the output torque produce by paraplegic.722 data are used by randomly divide 70% for training, 15% for validation and another 15% is for testing process. Two types of training approaches which is Levenberg Marquardt Back propagation (LM) and Resilient Back propagation (RP) are used in developing of quadriceps muscle model. The model developed are validate with the clinical data to see the accuracy of the torque output predicted with the identified parameter. From the study, LM is found to be the most accurate with accuracy up to 99.98% The identified parameter used from model developed in this study will be used to control various strategies on the Functional Electrical Stimulation (FES) system.

关键词： Muscles Mathematical model Training Artificial neural networks Jacobian matrices Data models Biological system modeling

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Efficient Location Tracking system for Patient Monitoring

Efficient Location Tracking System for Patient Monitoring

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International Conference on control systems and Computer Science (CSCS)

作者： Daniel Rosner Razvan Tataroiu Constantin Ilas Andreea Livia-Beciu Ovidiu-Marius Alexandru Computer Science Department University POLITEHNICA of Bucharest Bucharest Romania Automatic Control and System Engineering Department University POLITEHNICA of Bucharest Bucharest Romania

The constant increase of life expectancy in the last decades is constantly prompting for new and better solutions to support the overstressed medical system. Solutions for tele monitoring of elder patients in their own homes are seen as one of the key solutions in reducing the financial and human resources demand on a medical system that needs to address a constantly growing number of elder patients with fewer resources. This paper presents an efficient location tracking system design for monitoring elder patients in home environments. This system is designed to be integrated in complex context aware systems, which can provide valuable information and alerts to responsible care takers.

关键词： Receivers Monitoring Hardware Transmitters Wireless sensor networks Aging Sociology

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Quadriceps muscle models using fuzzy logic and ANFIS

Quadriceps muscle models using fuzzy logic and ANFIS

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IEEE International Conference on system engineering and Technology

作者： S. M. Salleh R. Jailani M. O. Tokhi Neuromuscular Rehabilitation Research Group Universiti Teknologi MARA Malaysia Shah Alam Selangor Department of Automatic Control and System Engineering University of Sheffied United Kingdom

This paper presents a development of quadriceps muscle models using ANFIS and Fuzzy Logic based on Functional Electrical Stimulation (FES). The models inputs parameter consists of stimulation frequency, pulse width, and sampling time are used to predict quadriceps output torque. The muscle models developed are then validate with the clinical data to evaluate the accuracy of the torque output predicted with the identified parameters. In this study, Fuzzy Logic muscle model gives better performance representing quadriceps muscle model.

关键词： Muscles Fuzzy logic Data models Force Mathematical model Biological system modeling Neuromuscular stimulation

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Reducing force transmissibility in multiple degrees of freedom structures through anti-symmetric nonlinear viscous damping

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Acta Mechanica Sinica 2012年第5期28卷 1436-1448页

作者： Z.-K.Peng Z.-Q.Lang G.Meng S.A.Billings State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong University Department of Automatic Control and Systems Engineering University of Sheffield

In the present study, the Volterra series theory is adopted to theoretically investigate the force transmissibility of multiple degrees of freedom （MDOF） structures, in which an isolator with nonlinear anti-symmetric viscous damping is assembled. The results reveal that the anti-symmetric nonlinear viscous damping can significantly reduce the force trans- missibility over all resonance regions for MDOF structures with little effect on the transmissibility over non-resonant and isolation regions. The results indicate that the vibration isolators with an anti-symmetric damping characteristic have great potential to solve the dilemma occurring in the design of linear viscously damped vibration isolators where an increase of the damping level reduces the force transmissibility over resonant frequencies but increases the transmissibility over non-resonant frequency regions. This work is an extension of a previous study in which MDOF structures installed on the mount through an isolator with cubic nonlinear damping are considered. The theoretical analysis results are also verified by simulation studies.

关键词： Nonlinear viscous damping Force transmissibility - Vibration isolation Volterra series

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Comparison of feedback linearization and flatness control for anti-slip regulation (ASR) of an hybrid vehicle: From theory to experimental results

Comparison of feedback linearization and flatness control fo...

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European control Conference (ECC)

作者： Cedric Chapuis Eric Bideaux Xavier Brun Nicoleta Minoiu-Enache Vehicle Control Team at Renault SAS Research Automatic Control and Mechatronic Team at Ampere Lab UMR CNRS 5005 Guyancourt France Head of Methods of System Engineering Department Ampere Lab UMR CNRS 5005 Villeurbanne Cedex France Vehicle Control Team at Renault SAS Research Advanced Engineering Department Guyancourt France

This paper compares 3 ASR 1 control laws, a PI controller, a linearizing feedback and a flatness based control. First, the controllers are designed based on a two state equations vehicle model. Then, the controllers are experimentally validated on an hybrid vehicle (VELROUE) with rear electric wheels and front axle ICE 2 traction. Finally, the nonlinear control laws are compared to the PI controller that is classically used in the automotive industry.

关键词： Wheels Vehicles Torque Acceleration Vehicle dynamics Force Roads

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A domain web data standardization organization method

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Information Technology Journal 2013年第22期12卷 6710-6716页

作者： Rui, Cao Rui, Wang Li-Yun, Hao Ling-Da, Wu Science and Technology on Complex Electronic System Simulation Laboratory Academy of Equipment Beijing 101416 China Department of Automatic Control and Systems Engineering University of Sheffield Sheffield SI 4DT United Kingdom Department of Systems Engineering College of Information Systems and Management National University of Defense Technology Changsha 410073 China

In order to enable the Web data to be applied in a non-Internet environment, overcoming the timeliness of Web data, this study proposes a domain Web data standardization organization method. The domain Web standardization organization framework is established and the acquired data are divided into three categories: Structured, un-structured and semi-structured. With respect to the semi-structured data within an implicit scheme, we use a rational code design to transform semi-structured data into structured data. Combining file system and relational database, a standardization organization method is established for the three types of data. Experimental results show that this method is effective and efficient. ©2013 Asian Network for Scientific Information.

关键词： Standardization

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Local measurement of harmonics through a sensor network based on TinyOS

Local measurement of harmonics through a sensor network base...

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2012 51st Annual Conference on of the Society of Instrument and control Engineers of Japan, SICE 2012

作者： Tarifa, José Antonio Escaño, Juan Manuel Molina, Miguel Ángel Bordons, Carlos Department of System Engineering and Automatic Control University of Seville Seville Spain

ISBN: (纸本)9781467322591

This paper describes an application in home automation based on wireless sensor network for monitoring of an electrical network in the consumption and quality of supply energy. The system allows scalability and flexibility with low cost. When installing sensors in each plug, it is possible to draw a map of the building to see areas where there is greater demand for electricity as well as places where there is too much distortion. Gateway is configured for the IEEE 802.15.4 to IEEE 802.3 and MATLAB was used to monitor data. The calculations of power and harmonic distortion are performed on each sensor. © 2012 SICE.

关键词： Wireless sensor networks

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Simulator for control and automation using an interactive and configurable 3D virtual environment

Simulator for control and automation using an interactive an...

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2012 51st Annual Conference on of the Society of Instrument and control Engineers of Japan, SICE 2012

作者： Del Pozo, Adolfo Sánchez Escaño, Juan Manuel Bordons, Carlos Department of System Engineering and Automatic Control University of Seville Seville Spain

ISBN: (纸本)9781467322591

The use of simulators greatly facilitates the work of specialists. Their usage produces results that could prevent errors in real systems. Using a simulator for industrial plants would reduce the programming time of their automation. We propose to develop a simulation platform of industrial machinery with 3D virtual reality, to carry out experiments of PLC (Programable Logic controllers) programming. A physic engine will be needed to be integrated in the application with a graphic interface which will be used to design, to programm and to visualize the simulation of the plant. Showing the first results of a first prototype, being the most general possible in programming to demonstrate the possibilities of such software both educational and commercial. © 2012 SICE.

关键词： Virtual reality

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The Development of Quadriceps Muscle Model for Paraplegic

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Procedia engineering 2012年 41卷 1553-1558页

作者： R. Jailani S.H. Zakaria M.O. Tokhi Department of Automatic Control and System Engineering University of Sheffield UK

This paper present the development of paraplegic quadriceps muscle model based on Functional Electrical Stimulation (FES). A type of modeling, Artificial Neural Network (ANN) were used to investigate the impact of different stimulation frequency, pulse width, pulse duration and settling time on the movement of quadriceps muscle with paraplegia due to a spinal cord injury. 361 training data and 300 testing data set are used in the development of muscle model. Two type of learning approach which is feed-forward backpropagation and cascade-forward backpropagation are considered to develop quadriceps muscle model. The developed model then, validated with clinical data. The model of muscle presented is able to accurately predict muscle torque outputs, along with the variability of the identified parameter. In this study, the feed-forward NN muscle model is found to be the most accurate muscle model representing paraplegic quadriceps muscle model. The established model is then used to predict the behaviour of the underlying system and will be used in the future for the design and evaluation of various control strategies.

关键词： Functional Electrical Stimulation (FES) quadriceps spinal cord injury (SCI)

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