Development of an Embedded Vision System for Unmanned Aerial Helicopter Automatic Landing Guidance
| Autor: | Ying-Jhen Chen, 陳映蓁 |
|---|---|
| Rok vydání: | 2014 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 102 Recently, the demand of unmanned aerial vehicle(UAV) becomes more popular in many fields, and automatic landing is an important and challenging issue for UAV. Because of the advantages of the unmanned aerial helicopter(UAH), such as high mobility, vertical takeoff and landing, and hovering mode, this study proposed to develop the automatic landing guidance system for unmanned aerial helicopter. Moreover, the machine vision has been used in many systems to retrieve the image information of environment with noncontact and nondestructive methods. This is helpful to get the information of the attitudes and location of the unmanned aerial helicopter. On the other hand, embedded system is ideal for the development of UAV flight system. Because there are several features, for instance, small size, light weight, low power consumption, highly processing speed and stability. The purpose of this study is to develop a machine vision system which can provide the estimated attitudes and relative distance to the designated landing position of unmanned aerial helicopter for automatic landing. In this study, a digital camera is used to identify the landing mark with an embedded system hardware architecture. Through the techniques of image processing, this study develops the required program to calculate the relationship of the image and landing mark. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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