{"title":"Improvement of Fast and Precise Positioning of Large-Scale High-Precision Step-Stage Based on Vibration Suppression PTC","authors":"K. Sakata, H. Fujimoto, T. Shimoyama, K. Saiki","doi":"10.1109/IECON.2007.4460340","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460340","url":null,"abstract":"In the positioning system of the large-scale high-precision step-stage, the primary resonance mode appears in low frequency even in the high stiffness stage. The resonance mode is a major obstacle of fast and precise positioning. In this paper, we apply vibration suppression PTC (perfect tracking control) which can control the resonance mode actively on the large- scale stage. Finally, simulations and experiments are performed to show the advantages of the vibration suppression PTC.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133340328","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}
{"title":"A Linear Time-Varying Control Scheme and Its Application to a Hard Disk Drive Servo System","authors":"C. Thum, C. Du, B.M. Chen, E. Ong, K. Tan","doi":"10.1109/IECON.2007.4459915","DOIUrl":"https://doi.org/10.1109/IECON.2007.4459915","url":null,"abstract":"A novel linear time-varying (LTV) control scheme is developed to perform short/mid-span seeking and track- following. This new scheme uses the concept behind the conventional composite nonlinear feedback (CNF) scheme to exhibit fast and smooth seeking. Having two nonlinear time components that are independent of seek length to adjust the feedback gain, the proposed scheme displays a notably better performance robustness against variations in seek length during short/mid-span seeking as well as 25.3% more head positioning accuracy during track-following over the conventional CNF control.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133458428","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}
{"title":"An Information Fusion System of Sensors for Human-machine Communication","authors":"K. Wan, A. Todo, E. Benoit, H. Sawada","doi":"10.1109/IECON.2007.4460345","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460345","url":null,"abstract":"The purpose of this study is to develop an information fusion system for the application of human-machine communication. The information fusion system bundles and controls sensing units distributed in a space. One sensing unit consists of several sensors, whose data are given to a computer and are transformed into significant information. This information is fed to other sensing units, to be fused with other significant information. All the information are integrated in a main computer to recognize and identify a particular person. The main computer is responsible for managing all the information in a distributed fusion system. For a large and complex system, it may consist of several communities of sensors that are controlled by several main computers to manage the different fusions of the systems. This paper introduces a methodology on how to group a several functions from different sensors that share a same environment for the purpose of recognizing a particular person.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115672726","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}
{"title":"Equipment design and control of advanced thermal processing system in lithography","authors":"A. Tay, Yuheng Wang, H. Chua","doi":"10.1109/IECON.2007.4460095","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460095","url":null,"abstract":"A programmable multizone thermal processing module is developed to achieve temperature uniformity of a silicon wafer during the thermal cycling process in lithography. In the proposed unit, the bake and chill steps are conducted sequentially within the same module without any substrate movement. The unit includes two heating sources. The first is a mica heater which serves as the dominant means for heat transfer. The second is a set of thermoelectric devices (TEDs) which are used to provide a distributed amount of heat to the substrate for uniformity and transient temperature control. The TEDs also provide active cooling for chilling the substrate to a temperature suitable for subsequent processing steps. The system is designed via detailed modeling and simulations based on first principle heat transfer analysis. Experimental results on initial prototype demonstrates less than 0.1degC spatial uniformity during the entire thermal cycle.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115938405","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}
{"title":"Flexible Grid-connection Technique and Novel Maximum Wind Power Tracking Algorithm for Doubly-Fed Wind Power Generator","authors":"Yu Fang, Liu Qi-hui, Zhang Jian-hua","doi":"10.1109/IECON.2007.4460038","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460038","url":null,"abstract":"The connection between the doubly-fed wind power generators (WPGs) and the grid affects the security of the grid and generator. The maximum. wind power tracking (MWPT) affects the efficiency of the generators connected to the grid. This paper deals with two problems above. Based on a no-load model of doubly-fed induction generator (DFIG), and by applying a vector control technique called stator flux orientation vector control technique (SFOVCT), a grid-connection control strategy for doubly-fed WPGs is developed. According to the wind turbines (WTs) principles and DFIG power characteristics, the paper investigates the MWPT principles based on generator power control, and then introduces an algorithm for active power command of the DFIG. Based on SFOVCT and general-purpose model for DFIG, this novel algorithm enables decoupled output power of DFIG, and then an integrated control strategy for MWPT are developed The grid-connection and the MWPT for the DFIG are presented for a 15-kw laboratory set up, and the experiment results verified the validity and feasibility of the theoretic analysis, as well as the control strategy.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124182277","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}
{"title":"On Auto Focusing under a Microscopic View","authors":"K. Lin","doi":"10.1109/IECON.2007.4459944","DOIUrl":"https://doi.org/10.1109/IECON.2007.4459944","url":null,"abstract":"Auto focusing (AF) is an important technique in applications for precision measurement and inspection. The technique is currently developed more focusing on high-speed implementation and under a microscopic view. This paper presents an AF algorithm composed of three stages (i.e., initial search for direction, a rough search, and a fine search). Sophisticated decision makings and abnormality handlings are built in to enhance the performance of the proposed algorithm. It is illustrated in this study that previous measures of image focus value (FV) are subject to low signal-to-noise ratio. Hence, a new measure based on the variance of sub-windowing measures is proposed to enhance the ratio. By the enhancement, the AF reliability and accuracy can be effectively improved. The proposed AF algorithm has been implemented in a PC- based laser-repairing machine. Experimental tests have been widely conducted in lab and on line as well. Selected tests are included in this paper. Among the tests, the AF time spreads over the range of 400-1700 ms with the average AF time less than 1000 ms.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124281764","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}
K. Suwanratchatamanee, R. Saegusa, M. Matsumoto, S. Hashimoto
{"title":"A simple tactile sensor system for robot manipulator and object edge shape recognition","authors":"K. Suwanratchatamanee, R. Saegusa, M. Matsumoto, S. Hashimoto","doi":"10.1109/IECON.2007.4460310","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460310","url":null,"abstract":"This paper proposes a simple tactile sensing and control method for robot to realize an active object surface recognition. The tactile sensor implemented on the robot hand consists of three force sensitive resistors with the peripheral circuits. The robot arm equipped with the sensor can perform active object recognition. Our research goal is to realize an effective robot controller for the 3D object handling. An additional final aim is to produce \"artifacts\" that is a kind of artificial creature, which enables to cooperate works between human and machine (robot) in a natural and intuitive manner. Throughout these works, we aim to realize a harmonized human-machine environment. The two examples of applications of the proposed tactile sensor are also introduced. First is a hand pose control to keep the moving direction normal to the object, which is often required in pushing an object for positioning. This application can be used for human-machine interaction tasks. Next is a hand pose and motion control for 3D-object edge tracing, which is required for industrial use such as welding machines and welding inspection. In these applications, we need no information about object shape or orientation in advance. We also show three experimental results using the proposed sensor unit. The system and results of experiments are presented.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114460083","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}
{"title":"Synchronous Motor Drive with Controlled Stator-Field-Oriented Longitudinal Armature Reaction","authors":"C. Szabo, M. Imecs, l.I. Incze","doi":"10.1109/IECON.2007.4460312","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460312","url":null,"abstract":"The paper presents a vector control structure for speed and demagnetizing longitudinal armature reaction of a wound-excited synchronous motor based on both, resultant stator-field and rotor-position orientation, working with capacitive, i.e. leading stator current. The synchronous motor is excited with constant uncontrolled current. There are presented simulation and experimental results. The implementation of the proposed control structure was performed on a test rig based on a dSPACE DS1104 controller card.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114628518","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}
{"title":"Parameter Estimation of a Signal Alongwith Non-Stationary Non-Gaussian Noise","authors":"A. Mukherjee, A. Sengupta","doi":"10.1109/IECON.2007.4460105","DOIUrl":"https://doi.org/10.1109/IECON.2007.4460105","url":null,"abstract":"The problem of estimating the parameters of a one- dimensional signal comprising of a time varying deterministic signal plus zero mean non-stationary non-Gaussian noise (NSNGN) is addressed. An algorithm has been developed to estimate the deterministic signal as well as the parameters of NSNGN of the signal. NSNGN has been modelled by Gaussian mixture probability density functions (pdf). The parameters of NSNGN was estimated using maximization of log likelihood function. Simulation results are included to validate this algorithm.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123513045","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}
{"title":"An Expert Fuzzy Controller for Vehicle Lateral Control","authors":"Jing Yang, N. Zheng","doi":"10.1109/IECON.2007.4459960","DOIUrl":"https://doi.org/10.1109/IECON.2007.4459960","url":null,"abstract":"Vehicle lateral control is a challenging problem in areas of intelligent transportation systems (ITS) and automatic control for autonomous vehicles. Most of solutions for lateral control proposed, such as PID, simple fuzzy logic control and H- infinity, are proved accurate and effective only in simple driving task, such as lane changing, lane following and small curvature crossing turning action. For big curvature crossing turning action, the solutions mentioned above haven't dealt with In this paper, we propose an expert fuzzy controller, which is based on a 2 degree of freedom (2DOF) vehicle lateral dynamic model, to solve the problem both in simple driving task and big curvature crossing turning action. The traditional 2DOF analytic model is used in lane changing, lane following and small curvature crossing turning actions, while an experimental model is used in big curvature crossing turning That is because the traditional 2DOF analytic model is set up based on the hypothesis that the steering angle of front wheel is small. The experimental model is proved accurate and effective in the realistic driving experiments. In addition, it is proved that the expert fuzzy controller is effective to solve the lateral control problem in complicated driving tasks, such as lane changing, lane following, small and big curvature crossing turning actions, in both simulations and experiments.","PeriodicalId":199609,"journal":{"name":"IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121946329","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}