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Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics最新文献

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Integral augmented variable structure control: design and testing 积分增广变结构控制:设计与测试
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339374
H. Tan, M. Greene, J. Hung
{"title":"Integral augmented variable structure control: design and testing","authors":"H. Tan, M. Greene, J. Hung","doi":"10.1109/IECON.1993.339374","DOIUrl":"https://doi.org/10.1109/IECON.1993.339374","url":null,"abstract":"Discusses the concept and design tool for integral variable structure control with a focus on the application to a position control system. Integral variable structure control has been proposed to alleviate steady state error caused by the boundary layer method. An integral switching surface is constructed by adding extra integral dynamics to the conventional switching surface. A convenient and practical design tool for a second order system has been developed here. Experiments were conducted for both classic and integral variable structure controls. The implementation of controllers are presented along with experimental test results.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115894204","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: 7
XTP: a communications protocol for real-time distributed systems XTP:用于实时分布式系统的通信协议
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339025
A. Weaver
{"title":"XTP: a communications protocol for real-time distributed systems","authors":"A. Weaver","doi":"10.1109/IECON.1993.339025","DOIUrl":"https://doi.org/10.1109/IECON.1993.339025","url":null,"abstract":"Modern factory control systems are no longer a collection of machines and controllers connected by point-to-point wiring; instead, factory automation has become yet another example of a real-time distributed system. Control and monitoring systems are implemented routinely by using local area network technology. In this context, it is the choice of communications protocol which determines the power and utility of the resulting system. Not only must the control program deal with traditional communications services such as control messages and file transfers, but it must also support new functionalities such as electronic mail, real-time transactions, image transmission, multimedia, and teleconferencing. We discuss the design features, functionality, and performance of the Xpress Transfer Protocol, a new communications protocol specifically intended to support real-time distributed systems.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116090603","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
Application of neural network to tank level control of petrochemical plants 神经网络在石化装置储罐液位控制中的应用
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339059
T. Tani, M. Umano, T. Sato, K. Tanaka
{"title":"Application of neural network to tank level control of petrochemical plants","authors":"T. Tani, M. Umano, T. Sato, K. Tanaka","doi":"10.1109/IECON.1993.339059","DOIUrl":"https://doi.org/10.1109/IECON.1993.339059","url":null,"abstract":"This paper presents a control system for petrochemical plants using neural networks. Neural networks effectively simulate a well-experienced operator's procedure to control the tank level of the plant even in a transient state such as feed oil switching. This control system is applied to tank level control of a desulfurizing plant during feed oil switching, it can control the level effectively.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123217221","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
Autonomous systems demand new computer system architectures and new development strategies 自治系统需要新的计算机系统架构和新的开发策略
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339111
B. Svensson, P. Wiberg
{"title":"Autonomous systems demand new computer system architectures and new development strategies","authors":"B. Svensson, P. Wiberg","doi":"10.1109/IECON.1993.339111","DOIUrl":"https://doi.org/10.1109/IECON.1993.339111","url":null,"abstract":"This paper addresses two related problem areas with regard to autonomous systems, namely (i) appropriate architectures of the embedded computing systems, and (ii) appropriate system development strategies and tools. Adaptivity and learning are identified as important characteristics of autonomous systems. A modular architecture capable of executing multiple-neural-network systems with real-time learning and control abilities is described. This architecture is based on distributed nodes of massively parallel processing elements communicating by means of a scalable high bandwidth medium. The nodes and the medium operate in a time-deterministic manner. Further, it is argued that autonomous systems must be developed through a process of system alteration-change-orientation rather than the phase-oriented specify-design-implement-and-test model which is common today. A tool which, in cooperation with the system architecture, supports this paradigm is described. Required functions of the development tool are, e.g., inspection and visualization of data, change of software and hardware functions, and ability to cope with changes in the mechanical structure, including sensors and actuators, all while the autonomous system is in action. A graphical, interactive design environment that meets these demands is outlined.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123474364","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: 12
Exact observer for flexible joint robots 柔性关节机器人的精确观测器
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339310
A. Benallegue, A. Bennani-Hassan, L. Chenguel
{"title":"Exact observer for flexible joint robots","authors":"A. Benallegue, A. Bennani-Hassan, L. Chenguel","doi":"10.1109/IECON.1993.339310","DOIUrl":"https://doi.org/10.1109/IECON.1993.339310","url":null,"abstract":"This paper deals with a problem of state observation of robot manipulators having elastic joints. The authors treat the case when one assumes that the global outputs of the system are link positions and their time derivatives (velocities). The authors propose an exact nonlinear observer based on some properties of the robot and on the known theory of linear observers. This observer reconstructs exponentially all the robot variables. The dynamic behavior of the observation algorithm is illustrated by simulation tests on a two revolute elastic joints robot manipulator.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123276185","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: 1
Structure of neural networks for industrial character reader 工业字符读取器的神经网络结构
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339362
S. Hata, K. Seino, A. Yagisawa
{"title":"Structure of neural networks for industrial character reader","authors":"S. Hata, K. Seino, A. Yagisawa","doi":"10.1109/IECON.1993.339362","DOIUrl":"https://doi.org/10.1109/IECON.1993.339362","url":null,"abstract":"Neural networks to recognize industrial characters are required to achieve high reading reliability. To achieve this high reliability, a method to control the structure of a neural network's hidden layer has been introduced. The method defines the feature extraction functions of neurons in the hidden layer, and preliminary teaching is so constructed that it gives the hidden layer neurons defined properties. After the desired property attached to the hidden layer neurons, the ordinary backpropagation procedure refines the structure of the neural network.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121754040","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
A PC-based multiprocessor robot vision system 基于pc机的多处理器机器人视觉系统
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339279
V. Graefe, H. Meier
{"title":"A PC-based multiprocessor robot vision system","authors":"V. Graefe, H. Meier","doi":"10.1109/IECON.1993.339279","DOIUrl":"https://doi.org/10.1109/IECON.1993.339279","url":null,"abstract":"A robot vision system was designed, built, and tested in real-world applications (guidance of a mobile robot and tracking of colored objects). It consists of a commercial frame grabber and a number of processing elements using the Intel 80960CA RISC processor as CPU, each of them realized as a plug-in card for a standard PC. The underlying system concepts and some implementation details are described. Performance data collected in real-time applications are also reported.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122455815","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
A real-time vision system for crowding monitoring 用于拥挤监测的实时视觉系统
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339357
C. Regazzoni, A. Tesei, Vittorio Murino
{"title":"A real-time vision system for crowding monitoring","authors":"C. Regazzoni, A. Tesei, Vittorio Murino","doi":"10.1109/IECON.1993.339357","DOIUrl":"https://doi.org/10.1109/IECON.1993.339357","url":null,"abstract":"In this paper, the approach used to estimate the number of people for planning purposes in DIMUS (ESPRIT project P-5345) is described. Crowd estimation is based on the image-processing and inference phases applied to the acquired data. Images come from a set of visual b/w camera oriented towards a zone to be monitored. Some significant features extracted from each acquired image are related to the number of people present in the monitored scene using the nonlinear models obtained by means of dynamic programming in an off-line training phase. The present approach, employing previously obtained estimates, improves the accuracy of estimation, with respect to an evaluation based only on present available data, and can predict crowding values without using new data, between two successive acquisitions. Results obtained after an extended test phase in a station of Genova's underground are reported.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122547808","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: 49
Optimal firing-angle control of cascaded HVDC converters for minimum harmonic currents 最小谐波电流级联直流变流器最优点火角控制
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339126
D. A. Deib, H. Hill, W. Shepherd
{"title":"Optimal firing-angle control of cascaded HVDC converters for minimum harmonic currents","authors":"D. A. Deib, H. Hill, W. Shepherd","doi":"10.1109/IECON.1993.339126","DOIUrl":"https://doi.org/10.1109/IECON.1993.339126","url":null,"abstract":"An optimal firing strategy for N cascaded, 6-pulse, phase-controlled power converters of a HVDC link is proposed. Minimization of the harmonic currents injected into the AC system (by both the inverters and rectifiers) is achieved through simultaneous control of the firing angles of the N power converters. With relatively low values of N (4 12-pulse, or 8 6-pulse), the resultant AC current harmonics are substantially lower than for comparable 12- or 6-pulse converters. Also, the DC voltage harmonics are greatly reduced over 12-pulse operation.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122688348","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
An approach to collision avoidance issues for redundant manipulator 冗余机械臂避碰问题的一种方法
Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics Pub Date : 1993-11-15 DOI: 10.1109/IECON.1993.339291
M. Shibata, K. Ohnishi
{"title":"An approach to collision avoidance issues for redundant manipulator","authors":"M. Shibata, K. Ohnishi","doi":"10.1109/IECON.1993.339291","DOIUrl":"https://doi.org/10.1109/IECON.1993.339291","url":null,"abstract":"This paper describes a novel method to plan the collision-free trajectory for robot manipulator. When several obstacles are fixed on the ground or in the air in the workspace, the shortest path between two ordered points, which represents a sequence of points indicating the positions for manipulator tip, and the manipulator configurations corresponding the tip positions are planned with the method. The approach proposed consists of two parts. First, the shortest path for the manipulator tip is planned, which detours around the obstacles. When each obstacle is recognized as an aggregate of convex polyhedra, it is shown that the shortest path consists of linked segments and easily calculated by solving the recursive quadratic equations. Next, successive motion for the manipulator to avoid collisions against the obstacles is planned, since the structure of manipulator is not considered in the solved path. The configurations of the manipulator is determined by depending on the tip position along the path and by referring the distances among manipulator links and obstacles.<<ETX>>","PeriodicalId":132101,"journal":{"name":"Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124211538","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
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