2007 Thirty-Ninth Southeastern Symposium on System Theory最新文献

A Note on Response Time Minimization for Planar MSM Photodetectors 平面MSM光电探测器响应时间最小化的研究

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352355

Kan-Lin Hsiung

引用次数: 0

Implementation of a Decentralized Adaptive Control System for the 12-TET Walker 12-TET步行器分散自适应控制系统的实现

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352327

B. Solomon, P. Olivier

{"title":"Implementation of a Decentralized Adaptive Control System for the 12-TET Walker","authors":"B. Solomon, P. Olivier","doi":"10.1109/SSST.2007.352327","DOIUrl":"https://doi.org/10.1109/SSST.2007.352327","url":null,"abstract":"The purpose of the tetrahedral walker (Tetwalker) project is to extend current space exploration into regions currently inaccessible by traditional wheeled or humanoid robots. The Tetwalker consists of arms, or struts, that join at nodes to form a tetrahedron. The struts will be able to lengthen and shorten, thereby giving the Tetrahedron shape-shifting abilities. The robot will move by changing the strut length to change its center of mass, causing it to tumble. Another benefit of such a robot is that when multiple units are combined, it is able to assume more complex shapes. This project focuses specifically on the third generation Tetwalker (the 12-Tetwalker), which consists of twelve tetrahedral robots combined to form a cube with the ability to carry a payload in the center. The intention is to use this robot for the exploration of extreme environments, such as the Martian and Lunar surfaces. The focus of this subset of the project was to implement Homayoun Seraji's decentralized adaptive controller (DAC) to the robot. This would lessen the need for a centralized brain that would control each strut, which would be very complicated and impractical to implement for such a device. The DAC would allow each strut to independently extend to its proper position in the current gait. The DAC was to be implemented in MATLAB as well as in C for the PIC18F6627 microcontroller. The DAC would be tested by using the PUMA 560 model presented in Seraji's paper. After this initial testing of the DAC, the DAC will be tested on a model for the 12-Tetwalker.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130372672","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

Portable Analog Data Capture using Custom Processing 使用自定义处理的便携式模拟数据捕获

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352330

O. Elkeelany, G.J. Vince

引用次数: 3

Performance analysis of adaptive noise canceller in real-time automobile environments 实时汽车环境下自适应消噪器的性能分析

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352341

Jae-hoon Park, Joonwan Kim, Jae-Kyun Lee, Si-Woo Kim, Chae-Wook Lee

引用次数: 4

A Generic Chip-to-World Fluidic Interconnect System for Microfluidic Devices 一种通用芯片到世界的微流控互连系统

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352343

N. Korivi, Li Jiang

引用次数: 15

Small Signal Stability of an Unregulated Power System 不稳定电力系统的小信号稳定性

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352312

V. Singhvi, S. Halpin

引用次数: 5

Design of Compensators for Meeting the Specification of Peak Value 满足峰值要求的补偿器设计

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352321

C. Choi

引用次数: 0

An Image Processing Approach for Surface Characterization of the Foam Patterns 泡沫图案表面表征的图像处理方法

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352320

W. Deabes, Student Member, M. A. Abdelrahman

{"title":"An Image Processing Approach for Surface Characterization of the Foam Patterns","authors":"W. Deabes, Student Member, M. A. Abdelrahman","doi":"10.1109/SSST.2007.352320","DOIUrl":"https://doi.org/10.1109/SSST.2007.352320","url":null,"abstract":"This paper presents a technique for the detection and analysis of the surface characterization of foam patterns used in the lost foam casting process. The number of gaps (defects) among the beads on the pattern surface is used as the quality estimator, since the surface defects are the main cause of micro fatigue cracks in castings. The foam patterns images obtained have poor contrast and contain different objects other than the defects. The proposed image processing and analysis technique consists of three stages. The first stage is enhancement step to remove the undesirable illumination variations by using the bottom-hat filter. In the second stage, morphological operators and multilevel thresholding segmentation technique are applied to detect and segment regions of interest on the surface of the foam pattern. The last step is feature extraction and quantitative analysis. The classification process is done according to the area of the surface defects. All the recognized objects are divided into groups based on the minimum and the maximum defects area. The ratio between the total area in each group and the total surface area of the foam pattern is calculated and presented as a surface quality measure of the foam pattern. Experimental results carried out on different patterns demonstrate that the proposed method is a reliable and accurate technique for detecting the surface defects of the foam pattern.","PeriodicalId":330382,"journal":{"name":"2007 Thirty-Ninth Southeastern Symposium on System Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132264010","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

Adaptive Control of an Induction Motor with Magnetic Saturation Under Time-Varying Load Torque Uncertainty 时变负载转矩不确定性下磁饱和感应电机的自适应控制

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352377

A. Ebrahim, G. Murphy

引用次数: 2

Metal Patterning on Polymers for Flexible Microsystems and Large-area Electronics 用于柔性微系统和大面积电子器件的聚合物上的金属图案

2007 Thirty-Ninth Southeastern Symposium on System Theory Pub Date : 2007-03-04 DOI: 10.1109/SSST.2007.352344

Mc, N. Korivi, Li Jiang

引用次数: 4