{"title":"A genetic algorithm for job-shop scheduling in a semiconductor manufacturing system","authors":"S. Cavalieri, F. Crisafulli, O. Mirabella","doi":"10.1109/IECON.1999.816541","DOIUrl":"https://doi.org/10.1109/IECON.1999.816541","url":null,"abstract":"The paper describes an approach to solving a job-shop scheduling problem in a flexible semiconductor manufacturing system. The application refers to the production of memories in a new module built in the ST Microelectronics plant in Catania (Italy). The approach uses a genetic algorithm, which has been devised for the particular industrial application. The paper focuses on the scheduling approach and on how it improves performance of the plant.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114697104","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":"Multiple-bridge PWM current-regulated power amplifier for magnetic resonance imaging system and its feasible digital control implementation","authors":"H. Takano, S. Watanabe, M. Nakaoka","doi":"10.1109/IECON.1999.816500","DOIUrl":"https://doi.org/10.1109/IECON.1999.816500","url":null,"abstract":"This paper presents a four-paralleled full-bridge-type PWM current controlled power amplifier using IGBTs in order to generate high speed gradient magnetic fields for magnetic resonance imaging system (MRI) and its unique parallel processing digital control scheme based on a phase-lead compensator by a reference delay and a load model feedforward in addition to a dead time compensator. The maximum output voltage of the current controlled power amplifier is 600 VDC and its maximum current is 400 A for inductive loads. The observed waveforms in its experiment are illustrated to demonstrate the effectiveness of the four-paralleled full-bridge power amplifier topology and its unique control scheme.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127975541","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 method on entropy constrained RVQ design","authors":"Y. Gong, M. Fan, Chien-Min Huang","doi":"10.1109/IECON.1999.822240","DOIUrl":"https://doi.org/10.1109/IECON.1999.822240","url":null,"abstract":"Entropy constrained residual vector quantization (EC-RVQ) has been shown to be a competitive image compression technique. In this paper, we propose a new algorithm for EC-RVQ design. The main features of the algorithm are: (i) in the encoder update step, we propose a variation of the exhaustive search encoder that significantly speeds up encoding at no expense in terms of the rate-distortion performance; (ii) in the decoder update step, we propose a new method that simultaneously updates the codebooks of all stages; the method is to form and solve a certain least squares problem and we show that both tasks can be done very efficiently; (iii) the Lagrangian of rate-distortion is shown to decrease at every step and thus this guarantees the convergence of the algorithm.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131347620","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":"Implementation of a novel fuzzy rule-based protection for an inverter fed induction motor","authors":"A. El Zawawi, M. Badr, A. El Deen Khalil","doi":"10.1109/IECON.1999.822230","DOIUrl":"https://doi.org/10.1109/IECON.1999.822230","url":null,"abstract":"A novel fuzzy rule based smart protection for an inverter fed induction motor drive is proposed. Two protection schemes are proposed, implemented and tested. The first scheme uses the inverter input current I/sub dc/ and its rate of change /spl Delta/I/sub dc/ to evaluate the drive condition according to a fuzzy rule base. In the second scheme, the rate of change of the motor speed is used instead of /spl Delta/I/sub dc/. The fuzzy output, which is a time delay, is defuzzified, then used to control the time intervals at which the protection circuit is required to watch the drive. These intervals become shorter if the drive condition is estimated to aggravate. If they drop below a certain limit, the drive gating signals are momentarily blocked.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132494626","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}
S. Aramaki, H. Shirouzu, S. Kurono, M. Mino, Y. Uno, K. Hara, H. Tanaka, T. Tsuruoka
{"title":"Development of autonomous mobile humanoid robot","authors":"S. Aramaki, H. Shirouzu, S. Kurono, M. Mino, Y. Uno, K. Hara, H. Tanaka, T. Tsuruoka","doi":"10.1109/IECON.1999.816430","DOIUrl":"https://doi.org/10.1109/IECON.1999.816430","url":null,"abstract":"The authors built a humanoid robot which behaves the same as the human in the space concerned. The mechanism and functions, such as vision sensor, acoustic sensor and loudspeaker, are mounted on this robot in order that the multi modal bidirectional communication between the robot and the human is possible. The authors adopted parallel processing by multi CPUs. The computers in the robot body are mutually connected by an Ethernet LAN. This LAN consists of the cerebrum system LAN and the motion system LAN in which a robot can quickly perform conditioned reflex actions as well as a human does. By using a wireless LAN, the LAN in a robot is connected to the outside LAN connecting the computers for software development and system support. In this paper, the outline of the developed humanoid robot is described.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131763057","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":"Recognition of a hand shape for application in a human interface","authors":"T. Niidome, Kazunori Ishii, Rokuya Ishii","doi":"10.1109/IECON.1999.816445","DOIUrl":"https://doi.org/10.1109/IECON.1999.816445","url":null,"abstract":"This paper proposes a human interface where a novel input method is used to substitute conventional input devices. It overcomes the deficiencies of physical devices, as it is based on image processing techniques. A. Tomita, T. Ebina, and R. Ishii proposed an recognition algorithm (1995, 1998). Two kinds of hand shapes and rotation of hand are interpreted by their proposed algorithm. We modify their algorithm and prove that eight types of hand shapes and rotation of a hand can be interpreted by the modified algorithm. From experimental results, the processing time to interpret these types and rotation is 31.4 msec.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131081668","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":"Implementation of generalized impedance control for robot manipulators","authors":"S. P. Chan","doi":"10.1109/IECON.1999.822234","DOIUrl":"https://doi.org/10.1109/IECON.1999.822234","url":null,"abstract":"To perform assembly tasks requiring compliant manipulation, the robot must follow a motion trajectory and exert an appropriate force profile while making compliant contact with a dynamic environment. For this purpose, a generalized impedance in the task space consisting of a second-order function relating motion errors and interaction force errors is introduced such that force tracking can be achieved. In the absence of modelling uncertainties, a model-based control laws can be designed to achieve the target impedance. However, in the presence of both parametric uncertainties and external disturbances, a robust control law is needed to realize the generalized impedance. The two control laws are implemented on a multi-degree-of-freedom SCARA robot for inserting a PCB into an edge connector socket. The effectiveness of the two control laws is compared through a computer simulation study. It is found that the robust control law achieve better position and force tracking performance.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133422204","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":"Implementation and verification of the feedback control software function of a switched reluctance cycloconverter controller","authors":"A. Radun, J. Heath, K. K. Hon","doi":"10.1109/IECON.1999.819410","DOIUrl":"https://doi.org/10.1109/IECON.1999.819410","url":null,"abstract":"This paper addresses the implementation of the control algorithm for a 400 Hz AC switched reluctance cycloconverter (SRC). The paper develops the general framework for the implementation of the complete controller which consists of two main components: a digital signal processor (DSP) and a complex programmable logic device (CPLD). This paper focuses on the DSP part of the controller and in particular the software. The part of the control algorithm implemented with the DSP were programmed in C. The paper describes how a Simulink test environment was used to verify the DSP portion of the controller and in particular was used to verify that the C software running on the DSP can successfully control the 400 Hz AC SRC.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132726021","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":"Controller design for a linear drive of a hoisting system","authors":"M. Platen, G. Kenneberger","doi":"10.1109/IECON.1999.819442","DOIUrl":"https://doi.org/10.1109/IECON.1999.819442","url":null,"abstract":"Linear permanent-field synchronous motors are advantageous for applications in vertical transportation. This paper presents a simple and effective control system for a linear synchronous motor driving hoisting equipment. The control system has a closed-loop speed control scheme with an inner current control loop. The equations describing the mechanical part of the examined mechatronic system are briefly discussed. A simulation model of the hoisting equipment established for analysis and optimization of the system is described. Finally, the results of the simulation are compared to measurements taken from a model of the hoisting system to demonstrate the accuracy of the simulation approach.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115673152","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. Eguchi, O. Yamashiro, H. Kawamoto, N. Tsuji, S. Yamane, K. Oshima
{"title":"Fuzzy inference for the initial population of genetic algorithms applied to VLSI floorplanning design","authors":"K. Eguchi, O. Yamashiro, H. Kawamoto, N. Tsuji, S. Yamane, K. Oshima","doi":"10.1109/IECON.1999.822249","DOIUrl":"https://doi.org/10.1109/IECON.1999.822249","url":null,"abstract":"VLSI floorplanning design automation based on soft computing is discussed. A novel approach based on the fusion of genetic algorithms and fuzzy inference for the automation of VLSI floorplanning design is proposed. The fuzzy rules are used to infer the initial position of the on-chip blocks based on analysis of the accumulated knowledge of the expert design engineer. Only the dominant combinations of place and block are inferred. Blocks deemed suitable candidates for placement at the center, relative to the four-corners of the chip, are inferred. These inferences are then reflected in the initial population of the genetic algorithms. The rest of the block placement phase is entrusted to the genetic algorithms. Experimental software to implement the proposed approach was developed. This was in turn used to perform computer-based experiments. The results of the experiments showed a level and quality of placement close to that of the expert design engineer.","PeriodicalId":378710,"journal":{"name":"IECON'99. Conference Proceedings. 25th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.99CH37029)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115716098","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}