研究生: |
祁谷風 Gustavo - Ricarte |
---|---|
論文名稱: |
整合全域路徑規劃及局部導航之移動機器人 Hybrid of Visual Global Path Planning and Intelligent Local Navigation for Autonomous Mobile Robot |
指導教授: |
李敏凡
Min-Fan Ricky Lee 蘇順豐 Shun-Feng Su |
口試委員: |
徐繼聖
Gee-Sern Hsu |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電機工程系 Department of Electrical Engineering |
論文出版年: | 2012 |
畢業學年度: | 100 |
語文別: | 英文 |
論文頁數: | 64 |
中文關鍵詞: | . |
外文關鍵詞: | Intelligent local navigation, visual global path planning, dynamic obstacle avoidance, visual sensing and perception |
相關次數: | 點閱:129 下載:12 |
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In recent years, an autonomous mobile robot is required for performing several different tasks, such as removal of hazardous mines, exploration of volcano, monitoring nuclear power plants, etc. In general, these tasks are in hazardous and populated environments. A mobile robot must be able to deal with unexpected changes in the environment and to perform complex assignments in a short period of time.
In this work, the focus is to provide a method for a mobile robot to navigate safely in an unknown and dynamic environment. The proposed scenario is "Assistance and Rescue Disaster", where a mobile robot is used to steer through a hazardous site in search of victims, in order to provide them rescue or emergency assistance.
The approach used is a hybrid of visual global path plan and intelligent local navigation. The path plan is obtained by using visibility graph and Dijkstra’s algorithm, and the local navigation uses fuzzy logic to control the robot's behavior.
Experiments were done in two different sizes of mobile robots and the initial objectives were achieved. The results show that a shorter travelled distance were obtained, as well as on-time reaction to dynamic obstacles in the robot's path.
The outcome is that the hybrid method provides a better solution than any of the methods alone, combining the efficiency of the path planning with the dynamic response of the local navigation technique.
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