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ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics最新文献

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Real virtuality: use of hypermedia and VR in the field of education and cultural heritage 真正的虚拟:超媒体和虚拟现实在教育和文化遗产领域的应用
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.651770
Alfiedo M. Ronchi
{"title":"Real virtuality: use of hypermedia and VR in the field of education and cultural heritage","authors":"Alfiedo M. Ronchi","doi":"10.1109/ISIE.1997.651770","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651770","url":null,"abstract":"This paper briefly introduces a couple of projects that represent the work currently in progress care of the ISET Department of Politecnico di Milano (Italy) in the field of Cultural Heritage and Educational Multimedia. The first project started two years ago, and aims to create a virtual environment in education and training; a first phase pilot project is actually running as a support to computer aided design course. The second project, is called Museums Over States and Virtual Culture (MOSAIC) co-funded by the European Commission in the TEN Telecom framework. Both this projects are taking advantage from the combined use of VR and hypermedia.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117087885","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
Implementation and optimization of a real-time PAC codec 实时PAC编解码器的实现与优化
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.651737
J. H. Snyder, G. J. Murakami, L.W. Ruedesueli, J. Palermo
{"title":"Implementation and optimization of a real-time PAC codec","authors":"J. H. Snyder, G. J. Murakami, L.W. Ruedesueli, J. Palermo","doi":"10.1109/ISIE.1997.651737","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651737","url":null,"abstract":"The authors describe an implementation of the perceptual audio coding (PAC) audio compression algorithm on PowerPC hardware designed to support simultaneous real-time compression and decompression of audio for transmission over a network. They describe the algorithm variant used, the target hardware and software development tools, and then describe the various optimizations that reduced the complexity sufficiently to allow the algorithm to run in real-time. They conclude by describing a scheduling algorithm that allows them to manage the complexity associated with the compression of 'difficult' music.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115813371","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
Teleoperating a mobile robot. A solution based on JAVA language 遥控移动机器人。基于JAVA语言的解决方案
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.651773
F. Monteiro, P. Rocha, P. Menezes, A. Silva, J. Dias
{"title":"Teleoperating a mobile robot. A solution based on JAVA language","authors":"F. Monteiro, P. Rocha, P. Menezes, A. Silva, J. Dias","doi":"10.1109/ISIE.1997.651773","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651773","url":null,"abstract":"This article describes a computational framework, which can run almost on every computer connected to a IP-based network, to study teleoperation techniques. The paper discusses the teleoperation of a mobile platform from a remote computer, both connected by the Internet communication network. To obtain a cheap and portable solution, the user interface and communication management was developed using Java language. The development based on this language gave a cheap, portable and easy to improve software package that is useful to test new control techniques with large time delays. Since the real time control over the Internet can suffer from unpredictable delays and bandwidth constraints, the authors use the RTP protocol to overcome some of these problems.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115885164","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: 11
Modelling semiconductor devices using bond graph techniques 利用键合图技术模拟半导体器件
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648934
K. Besbes
{"title":"Modelling semiconductor devices using bond graph techniques","authors":"K. Besbes","doi":"10.1109/ISIE.1997.648934","DOIUrl":"https://doi.org/10.1109/ISIE.1997.648934","url":null,"abstract":"Device simulators in electronics, use equivalent circuits, ideal switches and semiconductor equation models. Simulation of power electronic devices is less developed than that of other electronic fields. The main modelling methods are the numerical simulation of semiconductor device equations that hardly simulate circuits, and equivalent circuit models that show poor accuracy in switching mode. The authors propose the application of the bond graph techniques to model modular power semiconductor devices. This method makes for easy model construction and numerical resolution. They present in this paper the principle of proposed method and the results of its application to the example of IGBT devices. Bond graphs has been used in modelling a wide variety of physical systems. Future application can be in mechatronics which associate electrical and mechanical systems.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123446259","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
Nondestructive evaluation by permeance testing 通过渗透试验进行无损评价
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648863
E. D. Smith, G. Hancke, P. Smit
{"title":"Nondestructive evaluation by permeance testing","authors":"E. D. Smith, G. Hancke, P. Smit","doi":"10.1109/ISIE.1997.648863","DOIUrl":"https://doi.org/10.1109/ISIE.1997.648863","url":null,"abstract":"An AC permeance tester for the evaluation of defects in ferritic materials is examined. The permeance tester, having similar characteristics to a linear variable differential transformer (LVDT), is sensitive to variations in permeance. An E-type magnetic transformer core is used to produce a varying flux on its central limb with two pickup coils on the outer limbs. The voltages appearing across the pickup coils are connected in opposition and the difference voltage measured by a voltmeter. An analytical model is developed showing that the normalized difference voltage is directly related to the volume of any small defect in a ferritic sample which intercepts the flux between the limbs. Calculated theoretical defect size compares favourably with that measured by a prototype permeance tester. Measurement by the permeance tester offers the following: (a) a relatively simple, though approximate analytical relationship between the defect size and the indication given by the tester; and (b) the sensitivity of a permeance tester is of the same order of magnitude as the core-less eddy current tester.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124462049","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
New open-winding configurations for high-power inverters 大功率逆变器的新开式绕组配置
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648991
T. Kawabata, E. Ejiogu, Y. Kawabata, K. Nishiyama
{"title":"New open-winding configurations for high-power inverters","authors":"T. Kawabata, E. Ejiogu, Y. Kawabata, K. Nishiyama","doi":"10.1109/ISIE.1997.648991","DOIUrl":"https://doi.org/10.1109/ISIE.1997.648991","url":null,"abstract":"New configurations of high-power inverters suitable for AC motor drives and static VAr controllers are presented. A usual method of supplying large AC drives rated at more than several thousands of kilowatts is to combine the outputs of two inverters using inter-phase reactors. However, such inter-phase reactors have several disadvantages such as losses and acoustic noise. To solve these problems, several new configurations which combine two different type of inverters or converters to both terminals of the open windings are presented.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123615312","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: 55
Line current harmonic reduction in adjustable-speed induction motor drives by harmonic current injection 谐波电流注入法降低可调异步电动机传动中的线路电流谐波
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648956
Amr Amin
{"title":"Line current harmonic reduction in adjustable-speed induction motor drives by harmonic current injection","authors":"Amr Amin","doi":"10.1109/ISIE.1997.648956","DOIUrl":"https://doi.org/10.1109/ISIE.1997.648956","url":null,"abstract":"Modern adjustable-speed, induction motor drives are responsible for contaminating electric networks with undesirable harmonics. Most of the speed controllers developed for induction motors employ a rectifier-inverter arrangement. In this arrangement, the alternating current drawn by the rectifier contains many undesirable harmonics. These harmonics may be reduced by third-harmonic current injection into the neutral point of the DC windings of the rectifier transformer. In this paper, the third-harmonic injection technique is applied to an induction motor driven by a voltage-source inverter. Experimental results shows that the presented scheme is capable of reducing the undesirable line current harmonics generated by the drive system. Harmonic reduction is maintained during wide variations of the motor load. The presented scheme does not affect the high performance of the induction motor.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121574817","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: 4
A qualitative reasoning approach for rule based controllers 基于规则控制器的定性推理方法
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.651780
J. Calado, J. Sá da Costa
{"title":"A qualitative reasoning approach for rule based controllers","authors":"J. Calado, J. Sá da Costa","doi":"10.1109/ISIE.1997.651780","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651780","url":null,"abstract":"This paper presents a qualitative reasoning approach for rule based controllers design. Through the proposed methodology the controllers are designed based on causal relationships between subsystems, and the control actions are inferred from samples of both controlled and noncontrolled variables. These causal relationships form a heuristic model of the system. Based on the heuristic model and the current state of the process, control actions can be inferred. Moreover, instead of continuous real-valued variables the process variable behaviour is represented through its qualitative values. In order to facilitate the relationships analysis among process variables a systematic methodology for description of system structures is proposed. These techniques have been successfully applied in simulation studies of a mixing process.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122810772","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 procedure for discretization continuous-time controllers 离散化连续时间控制器的程序
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.648844
J. Tokarzewski, L. Sokalski
{"title":"A procedure for discretization continuous-time controllers","authors":"J. Tokarzewski, L. Sokalski","doi":"10.1109/ISIE.1997.648844","DOIUrl":"https://doi.org/10.1109/ISIE.1997.648844","url":null,"abstract":"A method for discretizing continuous-time controllers is presented in the paper. The proposed design procedure is based on designing an analog controller at the first stage and then on considering the closed-loop discrete-time system which arises from the digitization of the analog controller. The bottom line of the method is to employ an exponential representation of the matrix of dynamics of the closed-loop discrete-time system. The proposed design procedure provides an upper bound on the sampling time for which the stability of the closed-loop discrete time system is guaranteed.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124193243","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: 4
Design of logic connection controllers for three-phase voltage-source converters 三相电压源变换器逻辑连接控制器的设计
ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics Pub Date : 1997-07-07 DOI: 10.1109/ISIE.1997.649014
B. Francois, J. P. Cambronne
{"title":"Design of logic connection controllers for three-phase voltage-source converters","authors":"B. Francois, J. P. Cambronne","doi":"10.1109/ISIE.1997.649014","DOIUrl":"https://doi.org/10.1109/ISIE.1997.649014","url":null,"abstract":"A particular analysis of dependencies between the switch states and the resulting converted electrical quantities is detailed in this paper. By using a nonlinear inversion of these relations, we deduce a connection controller which enables the proper control of modulated electrical variables. This method is then used to control a three-phase voltage-source controlled-current PWM rectifier. The generality of the proposed method points out the unification of this design to matrix converters of any dimension.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126288552","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
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