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2014 CACS International Automatic Control Conference (CACS 2014)最新文献

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Pareto optimal controller designs in differential games 微分对策中的Pareto最优控制器设计
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097184
Wei-Yu Chiu
{"title":"Pareto optimal controller designs in differential games","authors":"Wei-Yu Chiu","doi":"10.1109/CACS.2014.7097184","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097184","url":null,"abstract":"In this study, Pareto optimality of controllers is investigated from the perspective of a system designer in a differential game. In the game, each player has their own cost function that must be minimized while competing for the control input, characterized by strategies of players. The controller design problem is formulated as a multiobjective optimization problem constrained by linear matrix inequalities. A novel stochastic algorithm using differential evolution mechanisms is proposed to solve the problem so that a set of Pareto optimal strategies can be obtained. In contrast with existing studies on differential games, this paper considers external disturbances involved in the game and a systematic approach to searching for Pareto optimal solutions.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125332543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
An optimal static compensator for output feed-back LQ control across lossy links 一种用于输出反馈LQ控制的最优静态补偿器
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097181
Jen-te Yu, L. Fu
{"title":"An optimal static compensator for output feed-back LQ control across lossy links","authors":"Jen-te Yu, L. Fu","doi":"10.1109/CACS.2014.7097181","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097181","url":null,"abstract":"This paper studies the compensation problem of discrete time-invariant output feedback LQ control across lossy links under TCP-like protocols where output dropout occurs. A general approach for static compensation is proposed first connecting the compensator gain selection and the LQ performance index. We then extend existing results for state feedback to output feedback and obtain a new set of gain equations for the controller and the compensator that satisfies optimality conditions. A solution algorithm to solve the resulting governing equations is also presented in the paper. Finally numerical examples are provided to validate the new approach.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125228265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study on roll angle control for hovering tilt rotor aircraft on one side thrust reduction 偏转旋翼机侧倾减推力悬停滚转角控制研究
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097175
Y. Osa, S. Uchikado, Kanya Tanaka
{"title":"Study on roll angle control for hovering tilt rotor aircraft on one side thrust reduction","authors":"Y. Osa, S. Uchikado, Kanya Tanaka","doi":"10.1109/CACS.2014.7097175","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097175","url":null,"abstract":"In this study a synthesis of flight control system which is able to control the roll angle of hovering Tilt Rotor Aircraft (TRA) on one side thrust reduction, which seriously affects the stability of TRA motion, is proposed. Basically this flight control system is constructed with roll angle feedback as stability augmentation method and P or PI control as controllability augmentation method.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"334 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124702401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The SURF algorithm on a FPGA-based platform 基于fpga平台的SURF算法
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097211
Yuan-Pao Hsu, C. Kuo
{"title":"The SURF algorithm on a FPGA-based platform","authors":"Yuan-Pao Hsu, C. Kuo","doi":"10.1109/CACS.2014.7097211","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097211","url":null,"abstract":"The SURF algorithm is suitable for being implemented on small computation platforms for its advantages of scale-invariant, rotation-invariant, and low computation burden. This paper focuses on the realization of the SURF algorithm upon a small FPGA-based platform for objects recognition in real-time. By following the hardware and software co-design concept the entire system is implemented and embedded in the FPGA of a SoPC. The hardware part of the system includes image processing circuits and peripheral circuits. The image processing circuits include RGB to gray transformation circuit and image integral circuit. Peripheral circuits include Laplacian of Gaussian filters circuit and NiosII process circuit. In software part, it includes SURF related operations such as: interest point descriptor, interest point matching, and the software for the system control. It has experimentally been proven that the resulting system satisfies the design goals of objects recognition, rotation-invariant, and scale-invariant. But, in the resulting system, there are only several modules realized in hardware because of the hardware resource limitation of the FPGA chip, causing the recognition speed cannot have very much improvement.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120937790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessing the effects of diagnostic failures on safety-related control systems 评估诊断故障对安全相关控制系统的影响
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097156
Joachim Iden
{"title":"Assessing the effects of diagnostic failures on safety-related control systems","authors":"Joachim Iden","doi":"10.1109/CACS.2014.7097156","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097156","url":null,"abstract":"Diagnosis is implemented within safety-related control systems in order to reveal internal faults that could lead to a loss of the safety function, thus reducing the resulting values of the probability of failure on demand (PFD) and probability of failure per hour (PFH) of such systems. The question to be discussed in this paper is how to assess the effects of failures of the diagnostic facilities themselves. In order to investigate this effect, we propose to consider a state-transition representation of the system, as reliability block diagrams are not well suited to reflect the changing properties when faults occur and affect the diagnostic capabilities of the system. We also discuss the role of common causes leading to the simultaneous failure of the control system and its diagnosis and their mathematical representation.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"60 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117222867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Mathematical modelling and simulation of the DFIG-based wind turbine 基于dfig的风力机数学建模与仿真
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097162
Yuan-Kang Wu, Wenqiang Shu, Hsien-Yang Cheng, Guan-Ting Ye, Dai-Chen Jiang
{"title":"Mathematical modelling and simulation of the DFIG-based wind turbine","authors":"Yuan-Kang Wu, Wenqiang Shu, Hsien-Yang Cheng, Guan-Ting Ye, Dai-Chen Jiang","doi":"10.1109/CACS.2014.7097162","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097162","url":null,"abstract":"Many large wind farms have employed doubly fed induction generator (DFIG) variable speed wind turbines. These require accurate models of doubly fed induction generator wind turbines and their associated control and protection circuits. The goal of this paper is to study the theory and control for the doubly-fed induction generator (DFIG) based wind turbine, and further establish its model by using mathematical formulas. The work utilized the power system analysis software PSCAD / EMTDC, which can quickly and accurately show the simulation results.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127249258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Kinematics-based studies on a 7-DOF redundant manipulator 基于运动学的7自由度冗余机械臂研究
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097192
M. Liu, H. Tsai, T. Hsiao
{"title":"Kinematics-based studies on a 7-DOF redundant manipulator","authors":"M. Liu, H. Tsai, T. Hsiao","doi":"10.1109/CACS.2014.7097192","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097192","url":null,"abstract":"Traditional industrial robots require at least 6-degree-of-freedom (DOF) to completely specify the position and orientation of the end-effector in the 3D space. However, extra DOF enables the robot to accomplish more challenging tasks such as obstacle avoidance, torque optimization, fault tolerance, etc. at the price of increasingly complicated kinematics. This paper is aimed at investigating some kinematics-related problems associated with a 7-DOF robot, including forward kinematics, inverse kinematics, Jacobian matrix, and collision detection, to set up the base for future researches.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125811925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Parameterized of control related states of Middle Left K-net system (with a nonsharing resource place) of Petri nets Petri网中左k网系统(具有非共享资源位置)控制相关状态的参数化
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097154
D. Chao, T. Yu
{"title":"Parameterized of control related states of Middle Left K-net system (with a nonsharing resource place) of Petri nets","authors":"D. Chao, T. Yu","doi":"10.1109/CACS.2014.7097154","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097154","url":null,"abstract":"Earlier, Chao pioneered the very first closed-form solution of the number of reachable and other states for marked graphs (MG) and k-th order system which is the simplest class of S3PR (Systems of Simple Sequential Processes with Resources). This paper progresses one step further on enumerating reachable, forbidden and live states for Middle Left K-net systems (one nonsharing resource place in the middle position of the left-side process, below denoted as Middle-Left-K-net) with a formula depending on parameter k for a subclass of nets with k sharing resources and μ processes where u and k can be very large.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"248 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121984903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Uncertain nonlinear time-delay system adaptive fuzzy PI sliding tracking control 不确定非线性时滞系统自适应模糊PI滑动跟踪控制
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097155
Tsung-Chih Lin, Hsi-Chun Huang
{"title":"Uncertain nonlinear time-delay system adaptive fuzzy PI sliding tracking control","authors":"Tsung-Chih Lin, Hsi-Chun Huang","doi":"10.1109/CACS.2014.7097155","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097155","url":null,"abstract":"In order to deal with large and fast external disturbance, system uncertainties and system time delay, an adaptive fuzzy controller constructed by time delay fuzzy logic system (TDFLS) is proposed for unknown nonlinear time-delay systems which are infinite dimensional in nature. An adaptive time delay fuzzy logic system is used to approximate the unknown time delay system functions, in the meantime proportional integral (PI) sliding mode controller is designed to attenuate chattering problem resulting from the fast and large external disturbance. Based on the Lyapunov theory of stability, the free parameters of the adaptive fuzzy controller and PI controller coefficients can be tuned on-line by output feedback adaptive laws which are derived from tracking and approximation errors. The simulation results show that not only the chattering phenomena can be attenuated but also the prescribed tracking performance can be preserved by the advocated control scheme.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134150359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Spectrum-based model reduction of rapid thermal processing system 基于光谱的快速热处理系统模型简化
2014 CACS International Automatic Control Conference (CACS 2014) Pub Date : 2014-11-01 DOI: 10.1109/CACS.2014.7097196
Tengfei Xiao, Han-Xiong Li
{"title":"Spectrum-based model reduction of rapid thermal processing system","authors":"Tengfei Xiao, Han-Xiong Li","doi":"10.1109/CACS.2014.7097196","DOIUrl":"https://doi.org/10.1109/CACS.2014.7097196","url":null,"abstract":"In order to study the temperature distribution on the wafer in a rapid thermal processing system, we develop a reduced model of the dynamic based on the spectrum of the system operator. The dominant modes of the system are extracted through the analysis of the spectrum. Galerkin's method is utilized to construct the reduced model of the system with the dominant modes as the trial functions. Simulations are performed by comparing the high-order model with the proposed reduced model. Simulation results show that the proposed reduced model has relatively small order but the same ability to model the process.","PeriodicalId":322035,"journal":{"name":"2014 CACS International Automatic Control Conference (CACS 2014)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129885664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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