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研究生: 邱富信
Fu-Hsin Chiu
論文名稱: 多自主式移動機器人之協同運作行為分析與控制
Analysis and Control of Cooperative Behavior Architecture for Multiple Autonomous Mobile Robots
指導教授: 李敏凡
Min Fan Lee
口試委員: 蔡明忠
Ming-Jong Tsai
陳亮光
Liang-kuang Chen
學位類別: 碩士
Master
系所名稱: 工程學院 - 自動化及控制研究所
Graduate Institute of Automation and Control
論文出版年: 2009
畢業學年度: 97
語文別: 英文
論文頁數: 76
中文關鍵詞: 隊型控制圖論運動規劃軌跡追踪模糊控制自主式移動機器人
外文關鍵詞: Formation Control, Graph Theory, Motion Planning, Trajectory Tracking, Fuzzy Logic Control, Autonomous Mobile Robots
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  • 此篇論文主要探討多機器人協同架構在隊形控制上的不同控制方法。 首先,一連串的馬達動作(如馬達前進之速度大小)形成多機器人的行為。而驅動多機器人系統的傳統控制方法採用的是考慮機械動力學的數學模型,並未考量其對於環境的適應性及自主性。隨著感測技術的發展,本論文提出模糊邏輯控制架構來達成多移動式機器人控制及導航。藉由已知的移動式機器人位置及方向,整合單一機器人的路徑追蹤、避障、目標搜尋及維持隊形的行為。除了目標驅動外,智慧型階層框架使得機器人能決策出各行為的優先權。藉由提出的控制方法,移動式機器人能夠跟隨著直線、圓形等路線並同時避障。最後,為了測試本論文提出方法的可行性,亦給予相關的模擬來驗證


    In this thesis various control methods of coordinating multiple robots in formation and cooperation are investigated. First, a set of motor schemas is applied to build the model of the multi-robot behavior. For steering the multi-robot system, conventional mathematical model is short of the capability of adaptive and autonomous. A fuzzy logic controller is developed to perform the trajectory tracking under the assumption that the sensor measurements are available, i.e., position and heading angle of each robot. Four mobile robot behavior modes are investigated in this research, such as Trajectory tracking, Goal seeking, Avoidance of obstacle, Formation keeping. Furthermore, a novel geometry approach is proposed for obstacle avoidance based on the relative motion between the robot and the obstacle. Besides the task goal driven, an intelligent hierarchical frame is proposed to assign the task priority for each robot. Using the proposed control laws, the mobile robots can globally follow arbitrary path such as a straight line, a circle and the path approaching to the origin using a single controller. To show the feasibility and effectiveness of the proposed method, the numerical simulations analysis was conducted to validate the approach.

    ABSTRACT I 中文摘要 II Acknowledgments III List of Figures VI Chapter 1 – Introduction 1 1.1 Background 1 1.2 Literature Review 3 1.3 Purpose 5 1.4 Structure Configuration of Thesis 7 Chapter 2 - Analysis of Multiple-Robot Architectures 8 2.1 System Overview 8 2.2 Graph Theory 11 2.3 A Nonholonomic Mobile Robot 14 2.3.1 Nonholonomic Mobile Robots Kinematic Modeling 16 2.3.2 Dynamic Equations 20 2.4 Collision Avoidance Analysis 21 2.5 Motion Planning Analysis 26 2.6 Formation Control Analysis 28 2.7 Goal Seeking and Engagement Analysis 33 Chapter 3 - Controller Design 35 3.1 Fuzzy Control Design for Tracking a Reference Trajectory 36 3.1.1 Trajectory Tracking 37 3.2 Geometry Mechanism for Obstacle Avoidance 42 3.3 Geometry Mechanism for Target Seeking and Formation Control 47 3.4 Behavior Coordination Module 49 3.4.1 Fuzzy Coordination Module Design 50 Chapter 4 - Simulations And Experiments 55 Chapter 5 - Conclusion and Future Work 66 5.1 Conclusion 66 5.2 Future work 67 References 68 Biography 73

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