检索结果-内蒙古大学图书馆

Joint 48th IEEE Conference on Decision and control and 28th Chinese control Conference

作者： Lei.Cheng Quan-Min.Zhu Yong-Ji.Wang the Engineering Research Center of Metallurgical Automation and Measurement Technology Ministry of Education in ChinaWuhan University of Science and Technology the Bristol Institute of Technology University of the West of England IEEE the Department of Control Science and Engineering Huazhong University of Science and Technology

Although it is relative new, flocking control has been widely attended to coordinates the motions among multiple agents or robots stably based on potential *** provide a generic and efficient solution to the local minimum problem encountered within various flocking systems in unexpected and irregular obstacle environment, this paper presents a new design of a multi-model flocking control for multiple mobile robots in terms of behavior-based *** this framework, some animal-imitating behavior modes are integrated with the new sequential flocking *** this way,the unity of stable aggregation in flocking and efficient obstacle avoidance motion can be efficiently and simultaneously *** simulation studies are comprehensively conducted to demonstrate the efficacy of the proposed procedure.

关键词： agent A Multi-Mode Sequential Flocking Strategy for Motion control of Multiple Mobile Robots in Obstacle Environment Mobile

来源：评论

学校读者我要写书评

暂无评论

Smartcard-Based Secret Sharing for Secure Fingerprint Verification

Smartcard-Based Secret Sharing for Secure Fingerprint Verifi...

引用

International Conference on Embedded and Multimedia Computing (EM-Com)

作者： Hanna Choi Woo-yong Choi Daesung Moon Sungju Lee Yongwha Chung Sungbum Pan Department of Computer and Information Science Korea University South Korea Biometrics Technology Research Team Electronics and Telecommunications Research Institute Daejeon South Korea Division of Information Control Measurement Engineering Chosun University South Korea

Recently, in the smartcard-based authentication system, there is an increasing trend of using fingerprint for the card holder verification, instead of passwords. However, the security of the fingerprint data is particularly important as the possible compromise of the data will be permanent. To protect the fingerprint data, techniques such as "fuzzy vault" which is based on the difficulty of the polynomial reconstruction need to be developed for the smartcard-based environment. In this paper, we propose a secure and efficient approach which reconstructs a polynomial on a smartcard with the aid of a server by using fuzzy fingerprint vault distributed into the smartcard and the server. Based on the experimental results, we confirmed that our secret sharingbased approach can perform the fuzzy vault-based fingerprint verification more securely (by a factor of'300) and quickly (by a factor of 17) on a combination of a smartcard and a server.

关键词： Cryptography Fingerprint recognition Polynomials Protection Image reconstruction Authentication Data security Information science control systems Information security

来源：评论

学校读者我要写书评

暂无评论

Optimal waypoint placement for road surveillance using unmanned aerial vehicles

Optimal waypoint placement for road surveillance using unman...

引用

作者： McDonald, Suzanne Holsapple, Raymond W. Kingston, Derek University of Maryland College Park MD 20742 United States Air Force Research Laboratory Wright-Patterson AFB OH 45433 United States Department of Electrical and Computer Engineering College Park MD 20742 United States Control Science Center of Excellence Wright-Patterson AFB OH 45433 United States

ISBN: (纸本)9781563479786

In this paper we consider an intelligence, surveillance and reconnaissance (ISR) mission where a human operator and a team of unmanned aerial vehicles (UAVs) are tasked to patrol a road. There are numerous inherent ISR benefits for patrolling a road. For example it might be beneficial to track the suspected movements of enemy troops in a forward operating location. Another example might be to gather intelligence that could then be used, possibly not in real time, to perform change detection, a method that might help with the detection of improvised explosive devices (IEDs). The layout of the road, with respect to a fixed known reference point, is assumed to be known a priori. For example the latitude and longitude coordinates of various points along the road would be sufficient. Most UAV autopilots make use of waypoint navigation to control the vehicle. This work investigates one method of optimally choosing the waypoints for the UAVs along the road. The cost function used minimizes the cross-track area error.

关键词： Cost functions

来源：评论

学校读者我要写书评

暂无评论

research on maximum allowable transfer interval of safety critical DCS with prescribed stability

Research on maximum allowable transfer interval of safety cr...

引用

IEEE International Conference on Mechatronics and Automation

作者： Yuefei Wang Jianghong Han Ye Wu Hao Peng Engineering Research Center of Measurement and Control in Safety Critical Industry Ministry of Education School of Mechanical and Automobile Engineering School of Computer and Information Hefei University of Technology Hefei Anhui China School of Computer and Information School of Instrument Science and Opto-Electronic Engineering Hefei University of Technology Hefei Anhui China

-The dynamic performance quality of SCDCS (Safety Critical Distributed control System) is pertinent to its dependability. To achieve the prescribed dynamic performance, a performance index describing converged speed of system states is established based on the model-building of SCDCS that is networked on its state feedback loop. Meanwhile, a sufficient condition, which can guarantee SCDCS to be asymptotically stable under prescribed performance constraints, is derived by employment of the Lyapunov theory and the matrix measurement. Based on the condition, an algorithm for obtaining maximum allowable transfer interval is presented. Results of simulation indicate that the design method is less conservative and can not only guarantees system asymptotically stable, but also make it have desired dynamic performance.

关键词： Distributed control Stability control systems Vehicle safety Vehicle dynamics Automotive engineering Electrical equipment industry Industrial control Performance analysis Actuators

来源：评论

学校读者我要写书评

暂无评论

Routing Protocol for Wireless Sensor Networks in Home Automation

引用

IFAC Proceedings Volumes 2009年第3期42卷 27-33页

作者： Xiao Hui Li Hong Qin Xu Seung Ho Hong Zhi Wang Xiang Fan Piao Engineering Research Center of Metallurgical Automation and Measurement Technology Ministry of Education Wuhan University of Science and Technology Wuhan Hubei 430081 China State Key Laboratory of Industrial Control Technology Zhejiang University Hangzhou 310027 China Department of Electronics Information and System Engineering Hanyang University 425-791 Korea Department of Electronic Information Engineering College of Science and Engineering Yanbian University Yanji 133002 China

Home automation systems based on wireless sensor/actuator networks are characterized by diversity of node power sources, limited computational power, and mobility. We propose a routing protocol that fully uses the location of static nodes to limit the search for a route to a small zone based on the analysis of characteristics and requirements. The calculation of two different kinds of zone and the route discovery procedure are described in this paper. According to the environment of home automation, we compared the performance of our routing protocols with the ad-hoc on-demand distance-vector protocol using simulation and gave suggestions for zone selection. Simulation results showed that our routing protocol dramatically reduced the routing overhead and increased the reliability.

关键词： Wireless Sensor/Actuator Networks Home Automation Routing Protocol

来源：评论

学校读者我要写书评

暂无评论

Polynomial kernel function and its application in locally polynomial neurofuzzy models

Polynomial kernel function and its application in locally po...

引用

International CSI computer Conference, CSICC

作者： A. Shirvani H. Chegini S. Setayeshi C. Lucas Tehran Science and Research Branch Computer Engineering Department Islamic Azad University Iran Faculty of Nuclear Engineering and Physics Amirkabir University of Technology슠 Tehran Iran Electrical and Computer Engineering Department Control and Intelligent Processing Center of Excellence University of Tehran Tehran Iran

Polynomials are one of the most powerful functions that have been used in many fields of mathematics such as curve fitting and regression. Low order polynomials are desired for their smoothness, good local approximation and interpolation. Being smooth, they can be used to locally approximate almost any derivable function. This means that when linear functions fail in approximation (e.g. where the first order Taylor expansion equals zero) polynomial functions can be used in local approximation, such that one can achieve better estimations at extremums. In this paper, application of polynomial kernel functions in locally linear neurofuzzy models is shown. Using polynomial kernels in local models, better local approximations in prediction of chaotic time series such as Mackey-Glass is achieved, and the capability of the neurofuzzy network is enhanced.

关键词： Polynomials Kernel Neurons Predictive models Power engineering and energy Chaos Application software Physics computing Power engineering computing Taylor series

来源：评论

学校读者我要写书评

暂无评论

Impedance model force control using neural networks for a desktop NC machine tool

Impedance model force control using neural networks for a de...

引用

IEEE International Symposium on Industrial Electronics (ISIE)

作者： Fusaomi Nagata Takanori Mizobuchi Shintaro Tani Keigo Watanabe Tetsuo Hase Zenku Haga Maki K. Habib Department of Electronics and Computer Science Tokyo University of Science Sanyo-Onoda Yamaguchi Japan Research and Development Center Meiho Company Limited Nogata Japan Department of Advanced Systems Control Engineering Graduate School of Science and Engineering Saga University Saga Japan Mechanical Engineering Department School of Sciences and Engineering American University Cairo Cairo Egypt

In manufacturing industries of metallics molds, various NC machine tools are used. We have already proposed a desktop NC machine tool with compliance control capability to automatically cope with the finishing process of LED lens molds. The NC machine tool has an ability to control the polishing force acting between an abrasive tool and workpiece. The force control method is called impedance model force control. The most important gain is the desired damping of the impedance model. Ideally, the desired damping is calculated from the critical damping condition in consideration of the effective stiffness in force control system. However, one of the serious problems is that the effective stiffness of the NC machine tool has undesirable nonlinearity. The nonlinearity gives bad influences to the force control stability. In this paper, a fine tuning method of the desired damping is considered by using neural networks. The neural networks acquire the nonlinearity of effective stiffness. It has been observed that the desired damping generated from the learned neural networks allows the NC machine tool to achieve a stable finishing result.

关键词： Impedance Force control Neural networks computer numerical control Damping Automatic control Finishing Manufacturing industries Light emitting diodes Lenses

来源：评论

学校读者我要写书评

暂无评论

Orthogonal-type robot with a CAD/CAM-based position/force controller

Orthogonal-type robot with a CAD/CAM-based position/force co...

引用

IEEE Symposium on Computational Intelligence in control and Automation, CICA

作者： Fusaomi Nagata Shintaro Tani Takanori Mizobuchi Tetsuo Hase Zenku Haga Masaaki Omoto Keigo Watanabe Department of Electronics and Computer Science Tokyo University of Science Yamaguchi Japan Research and Development Center Meiho Company Limited Nogata Japan R&D Center Meiho Co. Ltd. Nogata Department of Advanced Systems Control Engineering Graduate School of Science and Engineering Saga University Saga Japan

In this paper, a new desktop orthogonal-type robot with a CAD/CAM-based position/force controller is presented for finishing small metallic molds with curved surface. The robot consists of a three-axis robot whose single one has a high position accuracy of 1 mum, which means that it can perform higher resolutions of position and force, compared to general industrial robots. A thin wood stick tool with a ball-end tip is attached to the z-axis through a force sensor. The control system of the robot is comprised of a force feedback loop, position feedback loop and position feedforward loop. The force feedback loop controls the polishing force consisting of tool contact force and kinetic friction forces. The position feedback loop controls the position in pick feed direction. Further, the position feedforward loop leads the tool tip along a spiral path. We first evaluate the backlash that causes inaccuracy in position at the tip of the abrasive tool, by simply measuring the position and force. Next, a surface following control experiment along a lens mold is conducted, in which the mold has axis-symmetric concave areas. Finally, a LED lens mold is further finished by using the proposed system in order to demonstrate the performance and promise.

关键词： Force control Service robots Force sensors Force feedback Robot sensing systems Feedback loop Force measurement Lenses Surface finishing Electrical equipment industry

来源：评论

学校读者我要写书评

暂无评论

PH control of penicillin fermentation process using predictive approach

PH control of penicillin fermentation process using predicti...

引用

作者： Ashoori, Ahmad Moshiri, Behzad Ramezani, Amin Bakhtiari, Mohammad Reza Khaki-Sedigh, Ali Control and Intelligent Processing Center of Excellence School of Electrical and Computer Engineering University of Tehran Tehran Iran Iranian Research Organization for Science and Technology Iran Department of Electrical Engineering K.N. Toosi University of Technology Tehran Iran Box No. 83 2205 Lower Mall Vancouver BC V6T 1Z4 United States

Bioprocesses which are involved in producing different pharmaceutical products may conveniently be classified according to the mode chosen for the process: cither batch, fed-batch or continuous. From the control engineer's viewpoint they are fed-batch processes, which present the greatest challenge to get a pure product with a high concentration. Complicated dynamics, nonline-arity and non-stationarity make controlling them a very delicate task. pH control of bioreactors has been an interesting problem from both implementation and controller design points of view. This is particularly true if the complex microbial interactions yield significant nonlinear behavior. When this occurs, conventional control strategies may not succeed and more advanced strategies need to be suggested. This paper discusses model predictive control (MPC) based on a detailed unstructured model for penicillin production in a fed-batch fermentor. The approach used here is to use quadratic cost function for pH regulation, while taking into account control signal fluctuations in the optimization block. The result of applying the obtained controller and also its sensitivity to disturbance have been displayed and compared with the results of an auto-tuned PID controller used in previous works. The merit of this method is its low computational cost of solving the optimization problem, while leading to a closed form controller as well.

关键词： Model predictive control

来源：评论

学校读者我要写书评

暂无评论

Comparison of rotary cement kiln identified models

Comparison of rotary cement kiln identified models

引用

International Conference on control and Automation (ICCA)

作者： G. Noshirvani A. Fatehi B. Araabi M. Shirvani M. Azizi ACER Markaz Branch Arak Iran Advanced Process Automation & Control Research group Electrical Engineering Department K.N. Toosi University of Technology Tehran Iran Control and Intelligent Processing Center of Excellence Electrical and Computer Engineering Department University of Tehran Tehran Iran Chemical Engineering Department and member of Cement Research Center University of Science and Technology Tehran Iran Saveh Cement Company Saveh Iran

Rotary cement kiln is the main part of a cement plant that clinker is produced in it. Clinker is the main ingredient of cement. Continual and prolonged operation of rotary cement kiln is vital in cement factories. However, prolonged operation of the kiln is not possible and periodic repairs of the refractory lining would become necessary, due to non-linear phenomena existing in the kiln, such as sudden falls of coatings in the burning zone and probability of damages to the refractory materials during production. This is the basic reason behind the needs for a comprehensive model which is severely necessary for better control of this process. Such a model can be derived based on the mathematic analysis with consultation of expert operator experiences. In this paper both linear and nonlinear model are identified for rotary kiln of Saveh white cement factory. The linear model is introduced using Box-Jenkins structure. The results of the obtained model were satisfactory compared to some other linear models and can be used for designing adaptive or robust controllers. Also, nonlinear system identification via Neural Network technique is performed and its result was compared to linear models.

关键词： Kilns Production facilities Coatings Building materials Process control Mathematical model Mathematics Programmable control Adaptive control Robust control

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：