Proceedings of the IEEE Internatinal Symposium on Intelligent Control最新文献_第6页

Software architecture for real-time autonomous agents: a case study for digital train system 实时自主代理的软件体系结构:以数字列车系统为例

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157797

I. Song, F. Karray

引用次数: 4

On linguistic analysis of numerical dynamic systems 数值动态系统的语言分析

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157873

Fei-Yue Wang, Tao Yang

引用次数: 3

Creative activity support by extracting notable keywords from web pages with modified dates 通过从修改日期的网页中提取值得注意的关键字来支持创造性活动

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157871

W. Sunayama, M. Yachida

引用次数: 1

Modeling and analysis of real-time issues in rehabilitation robotic systems using coloured Petri nets 利用彩色Petri网建模和分析康复机器人系统中的实时问题

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157798

Xiaoyan Si, H. Abdullah, O. Basir

{"title":"Modeling and analysis of real-time issues in rehabilitation robotic systems using coloured Petri nets","authors":"Xiaoyan Si, H. Abdullah, O. Basir","doi":"10.1109/ISIC.2002.1157798","DOIUrl":"https://doi.org/10.1109/ISIC.2002.1157798","url":null,"abstract":"In this paper, we discuss some of the real-time issues that must be addressed in the design of rehabilitation robotic systems. A Coloured Petri Net (CPN) model is developed to analyze critical timing and resource requirements for achieving reliable and safe performance. A CPU scheduling problem is introduced and analyzed. An example of a robotic system treating injured or impaired limbs is used as a study case. This work shows the advantages of using CPN to model and simulate the robot-control system in real-time. This work is part of a research and development project to design and build an intelligent robot for physical and occupational therapy to help limb recovery. It is assumed that both the position and velocity of the patient's limb are measurable and controllable in real-time. The therapy process duration and frequency of limb movement are also controlled by the robot-control system. A time concept is introduced to the design to investigate the performance of the control system. Compact and extendable system design is achieved by utilizing the hierarchical aspect of CPN. This paper presents simulation results that demonstrate satisfactory mission critical performance of the system.","PeriodicalId":228502,"journal":{"name":"Proceedings of the IEEE Internatinal Symposium on Intelligent Control","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129608101","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

Dams displacements monitoring using second order blind identification algorithm 基于二阶盲识别算法的大坝位移监测

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157787

Theodor D. Popesecu

引用次数: 3

Bit allocation algorithm for wavelet image compression 小波图像压缩的位分配算法

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157786

N. Terki, N. Doghmane, A. Terki

{"title":"Bit allocation algorithm for wavelet image compression","authors":"N. Terki, N. Doghmane, A. Terki","doi":"10.1109/ISIC.2002.1157786","DOIUrl":"https://doi.org/10.1109/ISIC.2002.1157786","url":null,"abstract":"We introduce a compression algorithm using the wavelet transform. The principle of wavelet transform is to decompose hierarchically the input image into a series of successively lower resolution reference images and detail images that contain the information needed to be reconstructed back to the next higher resolution level. The histogram of image sub-bands provides information on the distribution of the coefficient values in this sub image. The sub band images resulting from wavelet transform are not equal significance. Some sub-bands contain more information than others. The total number of available bits describe an image is however, inevitably limited. Therefore, it is desirable to allocate more bits to those sub-band images and can be coded more accurately than others. The objective of such bit allocation method is to optimize the overall coder performance and minimize the quantization error. In determining which wavelet filter is to be used for image compression, some of the properties including vanishing moments are considered. The wavelet transform is implemented using a linear-phase biorthogonal filter (16,4) with 4 level of decomposition. For this study, we used a scalar quantization with uniform threshold quantizers. The quantization method is pulse code modulation (PCM) for the coefficients in all high-pass sub-bands. The coefficients of low-pass sub-band are differential PCM quantized per region.","PeriodicalId":228502,"journal":{"name":"Proceedings of the IEEE Internatinal Symposium on Intelligent Control","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116208048","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

Automatic running planning for omni-directional robot using genetic programming 基于遗传规划的全向机器人自动运行规划

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157811

Peng Chen, Shinji Koyama, Shinichiro Mitsutake, T. Isoda

引用次数: 6

A comparative study of field-oriented and direct-torque control of induction motors reference to shaft-sensorless control at low and zero-speed 感应电机磁场定向和直接转矩控制的比较研究参考低速和零速无轴传感器控制

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157795

T. Wolbank, Angelika Moucka, Juergen L. Machl

{"title":"A comparative study of field-oriented and direct-torque control of induction motors reference to shaft-sensorless control at low and zero-speed","authors":"T. Wolbank, Angelika Moucka, Juergen L. Machl","doi":"10.1109/ISIC.2002.1157795","DOIUrl":"https://doi.org/10.1109/ISIC.2002.1157795","url":null,"abstract":"In modern high performance ac drives, field oriented control (FOC) or direct torque control (DTC) schemes are applied to achieve high dynamic operation. Recently, efforts have been made to eliminate the machine shaft sensor in order to reduce costs and increase reliability. Although DTC is often designated as a sensorless scheme, it has similar problems to FOC when operated around zero flux frequency. In this paper, the performance of both schemes is investigated with special emphasis on operation around zero speed. In that operating range it is assumed nowadays that, without a shaft sensor, the flux position can only be determined by exploiting parasitic effects of the machine such as saturation or slotting. Sensorless schemes to estimate the spatial flux position control suffer from reduced accuracy in specific load ranges which degrades the performance of the drive when compared to operation with a shaft sensor. On a test stand FOC and DTC have been realized and the flux position calculated with the use of a speed sensor has been modified with different error functions to test the reaction of both schemes on erroneous flux input values.","PeriodicalId":228502,"journal":{"name":"Proceedings of the IEEE Internatinal Symposium on Intelligent Control","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133126833","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: 17

Monitoring and control of a wood-drying kiln via virtual project stations 基于虚拟工程站的木材干燥窑监测与控制

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157825

Poi Loon Tang, C. D. Silva, X. G. Wang

引用次数: 1

Neuro-fuzzy tension controller for tandem rolling 神经模糊连轧张力控制器

Proceedings of the IEEE Internatinal Symposium on Intelligent Control Pub Date : 2002-10-27 DOI: 10.1109/ISIC.2002.1157781

F. Janabi-Sharifi, J. Liu

引用次数: 3