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Asian control Conference

作者： Zakariah Yusuf Norhaliza Abdul Wahab S. Sahlan Faculty of Electrical Engineering Universiti Teknologi MARA Shah Alam Control & Mechatronics Engineering Department Faculty of Electrical Engineering Universiti Teknologi Malaysia

ISBN: (纸本)9781479978632

This paper presents modeling techniques for submerged membrane bioreactor (SMBR) filtration process using. The Nonlinear Auto Regressive with Exogenous Input (NARX) structure was used with adaptive neuro-fuzzy interface system (ANFIS) and feed forward neural network (FFNN) are employed to model the filtration system. The transmembrane pressure and the permeate flux were model during the relaxation and permeate cycle. In this work diluted palm oil mill effluent (POME) will be used as an influent of the treatment process. The performance of the models was measured using the R~2, mean square error (MSE) and mean absolute deviation (MAD). The result showed that the ANFIS with NARX structure perform slightly better compare with ANN with NARX structure.

关键词： SMBR NARX ANN ANFIS Transmembrane Pressure Flux Filtration process

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Convex combination for TDLMS adaptive filters

Convex combination for TDLMS adaptive filters

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International Conference on Estimation, Detection and Information Fusion (ICEDIF)

作者： Ying Wei Department of Control Science and Engineering Harbin Institute of Technology & Key Laboratory of Mechatronics Heilongjiang University Harbin China

In this paper, transform domain LMS (TDLMS) and TDLMS based on decomposition technology (TDLMS-DT) are mixed together by so-called convex combination approach to achieve relatively fast convergence speed and low stead... 详细信息

ISBN: (纸本)9781479964192

关键词： Adaptive filters Convergence Filtering algorithms Transforms Steady-state Signal processing algorithms Algorithm design and analysis

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Object detection and depth estimation of real world objects using single camera

Object detection and depth estimation of real world objects ...

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International Conference on Aerospace Science & engineering (ICASE)

作者： Sana Liaquat Umar S. Khan Ata-Ur-Rehman Department of Mechatronics National University of Sciences and Technology Islamabad Pakistan Department of Automatic Control and Systems Engineering University of Sheffield UK

This research paper proposes a single camera based depth estimation technique. The proposed technique takes images of walls in a room and detects objects of interest in a cluttered environment. Having detected different objects in a room the proposed technique calculates their areas. Based on training data and polynomial curve fitting approach the proposed technique estimates the distance of the camera from the objects. For a real world object one can determine a fixed equation which can then be used to find any random distance. The approach is efficient and can effectively be applied to any indoor navigation or motion planning algorithm. Based on the estimated distances from different objects the proposed algorithm estimates the accurate location of the camera (mounted on a robot) in a room. For detection we have used template matching technique. Algorithm compares the reference template with the objects of interest in a cluttered environment by using SURF (speeded up robust features). The proposed algorithm is tested on real world images and compared with the existing depth estimation techniques.

关键词： Cameras Feature extraction Estimation Curve fitting Clocks Robot kinematics

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Linear robust Generalized Proportional Integral control of a ball and beam system for trajectory tracking tasks

Linear robust Generalized Proportional Integral Control of a...

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American control Conference

作者： M. Ramirez-Neria H. Sira-Ramirez R. Garrido-Moctezuma A. Luviano-Juarez Automatic Control Departament of Cinvestav-IPN Apartado postal 14740 Mexico DF C.P. 07360 Mexico Mechatronics Section of the Electrical Engineering Department of Cinvestav-IPN Apartado postal 14740 Mexico DF C.P. 07360 Mexico UPIITA-IPN Av. IPN 2580 Col. Barrio La Laguna Ticoman D.F Mexico

ISBN: (纸本)9781467386838

In this article, the ball and beam trajectory tracking problem is tackled using a robust Generalized Proportional Integral (GPI) controller. The controller is developed on the basis of the tangent linearized system model around the equilibrium point. The approximate linearized system is differentially flat, and hence, controllable. Flatness reveals that the resulting linearized system has an interesting cascade property which allows the simplification of the controller design. Experimental results are included to show the effectiveness of the controller in trajectory tracking and disturbance rejection control.

关键词： Observers Robustness Mathematical model Robust control Closed loop systems State feedback Closed loop systems trajectory tracking Robust control State feedback beam system Mathematical Model controllers Observers Robustness PI control Ball Device Component

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Detecting mechanism of planar electromagnetic sensor in cooking oil discrimination

Detecting mechanism of planar electromagnetic sensor in cook...

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IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)

作者： Ahmad Amsyar Azman Sallehuddin Ibrahim Ruzairi Abdul Rahim Herman Wahid Aizat Azmi Agus Arsad Mohd Amri Md Yunus Control and Mechatronics Engineering Department Innovative Engineering Research Alliance Polymer Engineering Department Universiti Teknologi Malaysia Johor Malaysia Universiti Teknologi Malaysia Skudai Johor MY

The methods of cooking oil discerning are important for the sustainability of the cooking oils supply chain. Classical methods to measure cooking oil quality based on gas chromatography (GC) and high-performance liquid chromatography (HPLC) are too expensive for widespread industrial or household uses and require samples to be analysed in dedicated laboratories thus incurring significant time penalty. Therefore, efforts to develop a reliable and highly sensitive system that may provide on-site cooking oil discrimination is an important priority. Presented research work describes a real time non-invasive discriminating technique for cooking oils. A planar electromagnetic sensor consists of the combination of two sensors which are a meander sensor and an interdigital sensor. The meander type of coil is connected in series with the interdigital coil. Due to the ac voltage applied, the combination of meander and interdigital coils produce electromagnetic field which interacts with the material under test. Three types of cooking oil were prepared namely corn oil, refined palm oil, and sunflower oil. The impedance spectra so obtained showed that the sensor was able to detect the difference between different types of cooking oil samples. Both theory formulation and experiment outcomes were used to testify the measurement for cooking oil discrimination.

关键词： Oils Electromagnetics Impedance Sensor arrays Magnetic liquids Resistance Electrodes

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Review of water salinity measurement methods and considering salinity in measuring water area phase fraction of wet gas

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Sensors and Transducers 2014年第1期162卷 208-214页

作者： Seraj, Hossein Rahmat, Mohd Fua'ad Department of Control and Mechatronics Engineering University Technology Malaysia 81310 Skudai Johor Malaysia

Accurate measurement of water area phase fraction is one of key factors for precise measuring of wet gas flow rate. As variation in water salinity affects water area phase fraction measurement, therefore for having accurate water area phase fraction measurement, it is required to measure water salinity and take that into account in water area phase fraction measurement. In this paper, various methods for measuring water salinity in wet gas fluid are reviewed. Then the methodology for considering measured water salinity in water area phase fraction measurement is explained. Since accurate measurement of water area phase fraction is necessary for having precise wet gas flow rate measurement, therefore by considering water salinity in water area phase fraction measurement, the overall accuracy of wet gas measurement increases. In addition, knowing water salinity is very valuable in wet gas flow measurement as water breakthrough can be sensed using the measured salinity. © 2014 IFSA Publishing, S. L.

关键词： Flow of gases

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An application of sequential composition control to cooperative systems

An application of sequential composition control to cooperat...

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International Workshop on Robot Motion and control (RoMoCo)

作者： Esmaeil Najafi Robert Babuška Gabriel A.D. Lopes Delft Center for Systems and Control Delft University of Technology Delft CD The Netherlands Department of Mechatronics Engineering University of Tehran Iran

Sequential composition is an effective supervisory control approach for addressing challenging control problems on complex dynamical systems. It constructs a back-chaining sequence of controllers to achieve the control objective using simple local controllers. Although sequential composition works properly for a single system, it is not designed for cooperative systems. This paper extends the standard sequential composition by introducing a novel approach to compose multiple sequential composition controllers towards cooperative control. Given two or more systems, cooperation is achieved by composing each of the systems' supervisory finite-state machines, together with the estimation of the domains of attraction of the composed controllers. We present the simulation and experimental results of an inverted pendulum system collaborating with a second-order DC motor for cooperative swing-up maneuvers.

关键词： DC motors Automata Collaboration control systems Mathematical model Aerospace electronics

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Optimal performance for communication networked systems with QoS constraints

Optimal performance for communication networked systems with...

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IEEE International Conference on Cognitive Informatics

作者： Xin-Xiang Sun Xi-Sheng Zhan Jie Wu Tao Jiang College of Mechatronics and Control Engineering Huangshi Hubei Normal University China Department of Electronics and Information Engineering Wuhan Huazhong University of Science and Technology China

ISBN: (纸本)9781467372916

In this paper, we investigate the optimal performance for multiple-input multiple-output (MIMO) communication networked system under the QoS constraints through tracking a unit step signal. The expression of optimal performance for MIMO communication networked system is obtained by using of co-prime factorization, partial factorization, and spectral decomposition. It is shown that the optimal tracking performance is closely related to the nonminimum phase zeros and unstable poles of the plant, determined by their locations and directions. We also demonstrated that packet dropout and network-induced delay may degenerate the optimal tracking performance and encoder-decoder can be designed to improve the systems tracking ability. Some typical examples are given to illustrate the theoretical results.

关键词： Quality of service

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Coordination position control of linear switched reluctance machines

Coordination position control of linear switched reluctance ...

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International Conference on Power Electronics Systems and Applications (ICPESA)

作者： Weiyu Wang Jun Xia J. F. Pan Bo Zhang Norbert Cheung College of Mechatronics and Control Engineering Shenzhen University Shenzhen Shenzhen Institute of Electronics Department of Electrical Engineering The Hong Kong Polytechnic University Hong Kong

This paper investigates the coordination control system using linear switched reluctance motors (LSRMs). LSRMs have the advantages of fast response, high precision with no backlash. In this paper, a coordination control system using LSRMs based on dSPACE real-time control platform is built. This system uses serial communication to transmit position information among LSRMs. The experiment results show that the dynamic error of this coordination control system can be controlled within 1mm.

关键词： Presses

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Load analysis for the asymmetric bilateral linear switched reluctance generator

Load analysis for the asymmetric bilateral linear switched r...

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International Conference on Power Electronics Systems and Applications (ICPESA)

作者： Qianlong Li Jun Xia J. F. Pan Bo Zhang Norbert Cheung College of Mechatronics and Control Engineering Shenzhen University Shenzhen Shenzhen Institute of Electronics Department of Electrical Engineering The Hong Kong Polytechnic University Hong Kong

In this paper, to study the load characteristics of the asymmetric bilateral linear switched reluctance generator, theoretical analysis is first derived. Then the characteristics of the machine are investigated by the finite element method. Experiments at different loads are carried out for the asymmetric bilateral linear switched reluctance generator. The experiments are based on dSPACE DS1104 controller board and control Desk software package combined with Matlab/Simulink toolbox. The results demonstrate that each phase is decoupled from the magnetic circuit, and with the increment of load, the rate of discharging current increases.

关键词： Stators Generators MATLAB Artificial intelligence Switches Chlorine Load modeling

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