簡易檢索 / 詳目顯示

研究生: 沈全發
Shen, Quan-Fa
論文名稱: 機械式手套與虛擬實境之整合研究
Study on the Integration of the Hand Master and Virtual Reality
指導教授: 蔡清元
Tsay, Tsing-Iuan
學位類別: 碩士
Master
系所名稱: 工學院 - 機械工程學系
Department of Mechanical Engineering
論文出版年: 2002
畢業學年度: 90
語文別: 中文
論文頁數: 143
中文關鍵詞: 電位計虛擬實境人機介面機械式手套阻抗控制滑動模糊控制
外文關鍵詞: hand master, virtual reality, potentiometer, impedance control, fuzzy sliding control
相關次數: 點閱:137下載:8
分享至:
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報
  • 機械式手套是一種可以穿戴於手上的人機介面,人們可以藉由機械式手套的操作來和虛擬環境中的物體作交互作用,並且可從此機制感覺到虛擬物體的特性。在本文中採取一帶驅動機械式手套來作控制,因鋼索在高拉力拉緊時,會造成鋼索的變形,以致影響手套關節角度的計算,故在手套各關節處,增裝了電位計( potentiometer )感測器,以便可直接量取關節的角度位置。
    為了藉由此人機介面將抓取虛擬物體的感覺表現於操作者,在此建立阻抗控制的控制模式。此種控制法則配合上此介面的結構一共結合了滑動模糊控制理論、餘贅原理、力矩解析法則,以及以PI 為架構之張力控制器在工作空間中作控制。除此之外,本論文採用應變規( strain gauge )來量測鋼索張力作為張力控制的依據,以力量感測電阻 ( force sensing resistor ) 來量測外力,並且利用電位計來量測關節角度。因此文章中將提及應變規、力量感測電阻與電位計的校正過程及其機械和電子配件的設計方法。
    最後,以實驗驗證張力控制器和阻抗控制器的性能,其中實驗包含了鋼索預張力控制、關節轉矩追蹤控制、路徑追蹤控制、機械式手套在自由空間中的操作及手套在非自由空間中的操作,以及以軟體 World Tool Kit 建立虛擬實境並配合上機械式手套之控制來模擬觸碰及抓取物體的過程。

    The hand master is a haptic interface that can be worn on the human hand. The operator can interact with the virtual environment and “feel” the characteristics of virtual objects. The hand master proposed herein is driven by the tendons. Tendons are deformed under high pulling forces which yield imprecision in the joint angles. Therefore, a potentiometer sensor is installed in every joint of the hand master to measure the joint angle directly.
    The robust impedance control law is developed to realize the concept of “feel” when interacting with the virtual object. The proposed control law is based upon the structure of the hand master and involves the sliding mode control, fuzzy logic control, redundant analysis, torque resolver and the tendon tension control using a PI based controller. This control law produces fuzzy sliding impedance control in the operational space of the tendon-driven manipulator. Sensor calibration processes are also developed as strain gauges measure the tendon tensions; the force-sensing resistors are used to measure the external forces acting on the fingertips of the hand master; potentiometers measure the joint angles of the hand master.
    Finally, the theoretical results are experimentally verified to demonstrate the capabilities of the tension and impedance controllers. Specific experimental demonstrations include the pretension control, the torque tracking control, the path tracking control, unconstrained operation of the hand master, and constrained operation of the hand master. Furthermore, the World Tool Kit software is utilized to construct a virtual hand and a virtual object and combine them with the real hand master to provide a virtual environment for the operator to manipulate a virtual entity.

    中文摘要 i 英文摘要 ii 誌謝 iii 目錄 iv 表目錄 vii 圖目錄 viii 符號說明 xiii 第一章 緒論 1 1.1 前言 1 1.2 研究動機及目的 1 1.3 文獻回顧 2 1.4 貢獻 3 1.5 本文架構 4 第二章 帶驅動系統 5 2.1 鋼索與滑輪之繞線方式 6 2.2 運動學分析 6 2.2.1 基本結構 6 2.2.2 滑輪系 7 2.3 關節轉矩與鋼索張力的動力傳輸關係 8 2.4 贅餘系統的分析 13 2.4.1 贅餘系統的動力方程式 13 2.4.2 F → τ 映射 15 2.4.3 非贅餘系統的分析 17 第三章 系統之硬體架構 20 3.1 機械式手套之建構 20 3.2 動力傳輸系統 22 3.3 系統感測裝置及其校正 23 3.3.1 力量感測裝置 23 3.3.1.1 電路設計 23 3.3.1.2 力量感測裝置之校正 24 3.3.2 張力感測裝置 26 3.3.2.1 電路設計 26 3.3.2.2 力量感測裝置之校正 27 3.3.3 關節角度感測裝置 27 3.3.3.1 電路設計 27 3.3.3.2 關節角度感測裝置之校正 28 3.4 系統硬體架構 28 第四章 阻抗控制 46 4.1 物體之阻抗 46 4.2 機械式手套之阻抗控制 46 4.3 鋼索張力控制 52 第五章 虛擬實境 60 5.1 模擬運作流程 60 5.2 虛擬實境之建構 61 5.3 虛擬物體之運動分析 62 第六章 實驗結果 70 6.1 機械式手套之性能測試 70 6.1.1 預張力控制 70 6.1.2 關節轉矩追蹤 71 6.1.3 電位計與Encoder比較 71 6.1.4 路徑追蹤 72 6.1.5 關節轉矩的靜態平衡 73 6.2 食指與拇指之觸碰控制 74 6.3 機械式手套之抓取控制 76 第七章 結論 137 7.1 總結 137 7.2 未來展望 137 參考文獻 138 附錄A Jocabian matrix 141 附錄B Dynamics 142

    [1] M. Andremucci, M. Bergamasco, and P. Dario, “Sensor-based Fine Telemanipulation for Space Robotics”, Proc. of the NASA Conf. On Space Telerobotics, Vol. 4, Jan 31, pp.101-107, 1989
    [2] H. Asada and J.-J. E. Slotine, “Robot Analysis and control,” A Wiley Interscience Publication, John Wiley and Sons, Inc, New York / Chester / Brisbane / Toronto / Singapore.
    [3] M. Bouzit, P. Richard, and P. Coiffet, ”LRP Dextrous Hand Master Control ystem”, Technical Report, Laboratoire de Robotique de Paris, Jan, 1993
    [4] G. C. Burdea, “Force and Touch Feedback for Virtual Reality”, John Wiley & Sons, Inc, 1996
    [5] Y. X. Chen, “Control of the Hand Master and Its Application to the Virtual Reality”, Master Thesis, Department of Mechanical Engineering, National Cheng Kung University, R. O. C., 2000.
    [6] J. J. Craig, “Introduction of Robotics Mechanics & Control,” Addison Wesley, 1986.
    [7] H. P. Huang and Y. F. Wei, “Control of Dexterous Hand Master with Force Feedback,” IEEE International Conference on Robotics and Automation, Vol. 1, pp.687-692, 1998.
    [8] S. C. Jacobsen, J. E. Wood, D. F. Knutti, and K. B. Biggers, “The Utah/ MIT Dexterous Hand: Work in Progress,” The Inte’l Journal of Robotics Research, Vol. 3, No. 4, pp.21-25, 1985.
    [9] S. C. Jacobsen, H. Ko, E. K. Iversen, and C. C. Davis, “Antagonistic Control of a Tendon Driven Manipulator,” IEEE Proceedings of Inte’l Conference on Robotics and Automation, pp.1334-1339, 1989.
    [10] T. I. James Tsay and J. H. Huang, 1994, “Robust Nonlinear Control of Robot Manipulators,” Proceedings of the 1994 IEEE International Conference on Robotics and Automation, pp.2083-2088.
    [11] H. J. Kang and Rober A. Freeman, “Joint Torque Optimization of Redundant Manipulators via the Null Space Damping Method,” IEEE International Conference on Robotics and Automation, pp.520-523, 1992
    [12] K. Kazerounian and Wang, “Global versus Local Optimization Redundancy Resolution of Robotic Manipulators,” Intern. J. Robotics Research, Vol. 7, pp.3-12, 1988.
    [13] O. Khatib, “A Unified Approach for Motion and Force Control of Robot Manipulators: The Operational Space Formulation,” IEEE J. of Robotics and Automation, RA-3, pp.43-53, 1987.
    [14] J. J. Lee, “Tendon-driven manipulators: analysis, synthesis, and control,” Ph.D. dissertation, Department of Mechanical Engineering, University of Maryland, College Park, MD, 1991.
    [15] Z. J. Liang, “Self-organization Fuzzy Logic Force Control of Robot,” Master Thesis, Department of Mechanical Engineering, National Taiwan University, R. O. C., 1993.
    [16] A. Morecki, Z. Busko, H. Gasztold, and K. Jaworek, “Synthesis and Control of the Anthropomorphic Two-handed Manipulator,” Pooceedings of the 10th Inte’l Symposium on Industrial Robots, Milan, Italy, pp. 461-474, 1980.
    [17] “World Tool Kit Reference Manual,” Engineering Animation, Inc.

    下載圖示 校內:2005-08-28公開
    校外:2007-08-28公開
    QR CODE