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Research and construction of a net monitor system

Journal of Networks 2012年第7期7卷 1123-1130页

作者： Huang, Ruining Li, Lei Lou, Yunjiang School of Mechanical Engineering and Automation Harbin Institute of Technology Shenzhen Graduate School Shenzhen 518055 China Key Laboratory of Mechanical Equipment Manufacturing and Control Technology Guangdong University of Technology Ministry of Education guangzhou 510006 China

A Net Monitor system is presented in this paper. The system is based on STMicroelectronics board FLTK3D, which provides hardware platform for TV functions--3D film, IPTV, 3D game, cable television and so on. The whole system includes the Linux Operating System (OS), embedded web browser, Media player, clouding applications, video conference and 3D game. It utilizes the reference model of the CLFS (Cross Linux From Scratches) principle to construct the embedded Linux OS. Cloud applications are focused on remote control and access to the cloud data center. The ESX/view client provides this function for its secure access to the data center and maintainability. With the development of IPTV technology, light cross-platform web browser, media player and video conference are implemented. The Net Monitor can integrate cloud applications, web browser, media player, video conference and so on in just one platform with lower cost than other platforms on buying extra hardware and software, so it will brings convenient and benefit to people. © 2012 ACADEMY PUBLISHER.

关键词： Web browsers

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Editorial-neural networks and learning systems come together

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IEEE Transactions on Neural Networks and Learning Systems 2012年第1期23卷 1-6页

作者： Baesens, Bart Bouboulis, Pantelis Cruces, Sergio Domeniconi, Carlotta Ikeda, Shiro Li, Xuelong Melin, Patricia Rao, V. Sree Hari Schuller, Björn W. Shen, Yi Tang, Huajin Wang, Cong Yang, Jian Zhao, Dongbin Liu, Derong Catholic University of Leuven Belgium University of Athens Greece University of Seville Spain George Mason University United States Institute of Statistical Mathematics Japan University of London United Kingdom Tijuana Institute of Technology Mexico Jawaharlal Nehru Technological University India Technische Universität München Germany Huazhong University of Science and Technology China Institute for Infocomm Research Singapore Singapore South China University of Technology China Nanjing University of Science and Technology China Chinese Academy of Sciences China State Key Laboratory of Management Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China Department of Electrical Computer Engineering University of Illinois Chicago IL 60607 United States

This issue marks the beginning of the IEEE Transactions on Neural Networks and Learning Systems (TNNLS). By adding «Learning Systems» to the title, we now state explicitly the scope of the TRANSACTIONS to include neural networks as well as related learning systems. This issue marks a new era in the history of our TRANSACTIONS. The TRANSACTIONS is now ready to face the challenges of the next 10-20 years. With the evolution of the fields of neural networks in particular and computational intelligence in general, the IEEE Transactions on Neural Networks and Learning Systems will continue to grow and to succeed in this ever-changing world. Also included are a few comments about the review process of TNN manuscripts and the introduction of 14 new TNNLS Associate Editors. © 2012 IEEE.

关键词： Learning systems

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DSP-based cross-coupled synchronous control for dual linear motors via intelligent complementary sliding mode control

DSP-based cross-coupled synchronous control for dual linear ...

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IEEE Colloquium on Humanities, Science and engineering (CHUSER)

作者： Po-Huan Chou Faa-Jeng Lin Chin-Sheng Chen Feng-Chi Lee Department of Mechatronics Control Industrial Technology Research Institute Hsinchu Taiwan Department of Electrical Engineering National Central University Chung Li Taiwan Graduate Institute of Automation Technology National Taipei University of Technology Taipei Taiwan

A digital signal processor (DSP)-based cross-coupled intelligent complementary sliding mode control (ICSMC) system is proposed in this study for the synchronous control of a dual linear motors servo system. The dual linear motors servo system with two parallel permanent magnet linear synchronous motors (PMLSMs) is installed in a gantry position stage. The dynamic model of single-axis motion control system with a lumped uncertainty, which comprises parameter variations, external disturbances and nonlinear friction force, is introduced first. Then, to achieve an accurate trajectory tracking performance with robustness, a cross-coupled ICSMC is developed. In this approach, a Takagi-Sugeno-Kang type fuzzy neural network (TSKFNN) estimator with accurate approximation capability is implemented to estimate the lumped uncertainty. Moreover, since a cross-coupled technology is incorporated into the proposed intelligent control scheme for the gantry position stage, both the position tracking error and synchronous error of the dual linear motors will converge to zero simultaneously. Finally, some experimental results are illustrated to show the validity of the proposed control approach.

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IMC-PID tuning method based on sensitivity specification for process with time-delay

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Journal of Central South University 2011年第4期18卷 1153-1160页

作者：赵志诚刘志远张井岗 Department of Control Science and Engineering Harbin Institute of Technology Department of Automation Taiyuan University of Science and Technology

To overcome the deficiencies addressed in the conventional PID control and improve the dynamic performance and robustness of the system, a simple design and parameters tuning approach of internal model control-PID （IMC-PID） controller was proposed for the first order plus time-delay （FOPTD） process and the second order plus time-delay （SOPTD） process. By approximating the time-delay term of the process model with the first-order Taylor series, the expressions for IMC-PID controller parameters were derived, and they had only one adjustable parameter 2 which was directly related to the dynamic performance and robustness of the system. Moreover, an analytical approach of selecting 2 was given based on the maximum sensitivity Ms. Then, the robust tuning of the system could be achieved according to the value of Ms. In addition, the proposed method could be extended to the integrator plus time-delay （IPTD） process and the first order delay integrating （FODI） process. Simulation studies were carried out on various processes with time-delay, and the results show that the proposed method could provide a better dynamic performance of both the set-point tracking and disturbance rejection and robustness against parameters perturbation.

关键词： process with time-delay integrating process internal model control-PID robustness sensitivity parameters tuning

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$H_{\infty}$ Filtering for Discrete-Time Systems With Stochastic Incomplete Measurement and Mixed Delays

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IEEE Transactions on Industrial Electronics 2012年第6期59卷 2732-2739页

作者： Peng Shi Xiaoli Luan Fei Liu School of Engineering and Science Victoria University Melbourne VIC Australia Key Laboratory of Advanced Control for Light Industry Processes Ministry of Education Institute of Automation Jiangnan University Wuxi China Department of Computing and Mathematical Sciences University of Glamorgan Pontypridd UK

This paper focuses on the H ∞ filtering problem for a class of discrete-time systems with stochastic incomplete measurement and mixed random delays. A more realistic and accurate measurement mode is proposed to compensate for the negative influence of both missing data and different time delays in a random way. In the system, all of the stochastic variables are mutually independent but satisfy the Bernoulli binary distribution. In particular, the stochastic infinite distributed delays are introduced in the discrete-time domain. Sufficient conditions for the existence of the admissible filter are derived in terms of linear matrix inequalities, which ensures the asymptotic stability as well as a prescribed H ∞ performance for the filter errors. A simulation example is exploited to demonstrate the effectiveness of the proposed design procedures.

关键词： Discrete time systems Symmetric matrices Linear matrix inequalities Loss measurement Delay effects Distributed databases Stochastic processes Random processes

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Some New Deformation Formulas about Variance and Covariance

Some New Deformation Formulas about Variance and Covariance

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2012 International Conference on Modelling,Identification and control(建模、辨别与控制国际会议 ICMIC 2012)

作者： Yuli Zhang Huaiyu Wu Lei Cheng Shenzhen Institute of Advanced Technology Chinese Academy of ScienceShenzhen518055China Engineering Research Center of Metallurgical Automation and Measurement Technology Ministry of Educa Control Engineering Open Lab of Key Subjects of Henan Province JiaozuoChina Engineering Research Ce

ISBN: (纸本)9781467315241

Based on the idea of the difference method, in this paper, the difference method is applied to the calculation of the variance and *** variance and covariance formulas are transformed as some new formulas by the difference *** articles presented some original new variance and covariance formulas whose form that contains the individual difference, and leads to some corresponding new expansion *** calculation of the variance and covariance about this method is less implicated with the changes of the overall ***, the theoretical analysis and practical application of image denoising show the feasibility of the new formula.

关键词： variance covariance deformation formula image denoising

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A NoSQL based cached storage solution of GIS Web service

International Journal of Digital Content Technology and its ...

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International Journal of Digital Content Technology and its Applications 2012年第20期6卷 268-276页

作者： Liu, Jin Wu, Yangping Zhuo, Dan Hu, Qiping Wang, Yan Zhang, Wensheng State Key Lab of Software Engineering Computer School Wuhan University China International School of Software Wuhan University China State Key Lab of Management and Control for Complex Systems Institute of Automation Chinese Academy of Science China

One of challenges in GIS Web service is mass GIS data storage and processing. There are at least three obstacles that oppose dealing with this challenge: the mismatch between the frequent requirement of concurrent tasks for accessing data in GIS Web service and the poor performance of conventional storage mechanism such as relational databases;the insufficiency of relational databases to manage complex data types in GIS Web service;the horizontal scalability of storage for non-stop GIS Web service evolution. This paper proposes a distributed cached storage solution, as the mixture of MongoDB storage and Memcached cache, for GIS Web service. Both techniques are closely related to NoSQL that is a class of database management system identified by its non-adherence to the widely used relational database management system (RDBMS) model. A concise case that facilitates a better understanding of this work indicates its feasibility.

关键词： Websites

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Smooth trajectory planning for manipulator of cotton harvesting machinery based on quaternion and B-spline

Smooth trajectory planning for manipulator of cotton harvest...

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International Symposium on Instrumentation & Measurement, Sensor Network and automation (IMSNA)

作者： Mulan Wang Xiaoxia Li Kaiyun Xu Rong Jiang Jiangsu Key Laboratory of Advanced Numerical Control Technology Nanjing Institute of Technology Nanjing China Department of Electrical and Mechanical Engineering Jiangsu Food Science College Huaian China School of Automation Nanjing Institute of Technology Nanjing China School of Mechanical Engineering Nanjing Institute of Technology Nanjing China

A planning method for manipulator of cotton harvesting machinery is proposed to accomplish smooth orientation adjustment in its task space. Quaternion is adopted to represent the orientation instead of the traditional homogeneous transformation matrix, and the corresponding conversion process is deduced. The smooth orientation trajectory is generated by interpolating key orientations with the quaternion three-dimensional spherical interpolation method. Key joint positions are solved with the inverse kinematics algorithm according to discrete orientations sampled with specific positioning accuracy of the manipulator terminal, and then smooth joint trajectories with stable start-stop motion and continuous jerk are obtained through the interpolation method based on five degrees B-spline. Simulation results show that, the proposed trajectory planning method supplied manipulators with smooth adjustment of orientation and stable movement of joints, which made it an effective solution for the smooth orientation planning problem of manipulators in the cotton harvesting machinery.

关键词： Quaternions Manipulators Joints Trajectory Planning Interpolation Splines (mathematics)

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Online Learning Algorithm for Stackelberg Games in Problems with Hierarchy

Online Learning Algorithm for Stackelberg Games in Problems ...

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IEEE Annual Conference on Decision and control

作者： K. G. Vamvoudakis F. L. Lewis M. Johnson W. E. Dixon Center for Control Dynamical-systems and Computation (CCDC) University of California Automation and Robotics Research Institute University of Texas at Arlington NASA Ames Research Center Department of Mechanical and Aerospace Engineering University of Florida

ISBN: (纸本)9781467320658

This paper presents an online adaptive optimal control algorithm based on policy iteration reinforcement learning techniques to solve the continuous-time Stackelberg games with infinite horizon for linear systems. This adaptive optimal control method finds in real-time approximations of the optimal value and the Stackelberg-equilibrium solution, while also guaranteeing closed-loop stability. The optimal-adaptive algorithm is implemented as a separate actor/critic parametric network approximator structure for every player, and involves simultaneous continuous-time adaptation of the actor/critic networks. Novel tuning algorithms are given for the actor/critic networks. The convergence to the closed-loop Stackelberg equilibrium is proven and stability of the system is also guaranteed. A simulation example shows the effectiveness of the new online algorithm.

关键词： Stackelberg games Hierarchical control problems adaptive optimal control Social Hierarchy Game theory e-learning infinite horizon Best value algorithms

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Cooperative control of Nonlinear Multi-agent Systems with only Relative Position Measurements

Cooperative Control of Nonlinear Multi-agent Systems with on...

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American control Conference

作者： Jie Mei Wei Ren Guangfu Ma School of Mechanical Engineering and Automation Harbin Institute of Technology Shenzhen Graduate School Guangdong 518055 P. R. China Department of Electrical Engineering University of California Riverside CA 92521 USA Department of Control Science and Engineering Harbin Institute of Technology Heilongjiang 150001 P. R. China

ISBN: (纸本)9781457710957

In this paper, we study the distributed cooperative control of second-order multi-agent systems with intrinsic nonlinear dynamics under an undirected graph that characterizes the interaction among the followers or agents. By introducing a distributed filter for each follower or agent, the proposed control algorithms use only relative position measurements. Both the coordination tracking problem with a dynamic leader and the leaderless consensus problem are considered. In the special case when the intrinsic nonlinear dynamics are zero, i.e., for multi-agent systems with second-order integrators, we further derive results for the leaderless consensus problem under a directed graph. We present a necessary and sufficient condition such that the systems achieve consensus using only relative position measurements.

关键词： Eigenvalues and eigenfunctions Position measurement Multiagent systems Vectors Lead Nonlinear dynamical systems Velocity measurement

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