1 AIT Asian Institute of Technology

Vision-based automatic hovering control of a small-scale unmanned helicopter

AuthorApisit Aroonnual
Call NumberAIT Thesis no.ISE-10-31
Subject(s)Helicopters--Control systems

NoteA thesis submitted in partial fulfillment of the requirements for the Degree of Master of Engineering in Mechatronics, School of Engineering and Technology
PublisherAsian Institute of Technology
Series StatementThesis ; no. ISE-10-31
AbstractThis thesis shows a research of using only a webcam camera as a position sensor in order to control positions and heading angle of a toy-model 4-channel coaxial helicopter robot to perform automatic hovering at a desired position and heading angle. The webcam is placed on the ground, and there is no any sensor mounted on the helicopter. Three LEDs which are used as tracking object are attached under the helicopter platform. The camera captures the image of the helicopter with LEDs, finds the positions and heading angle of the helicopter in the image plane, and converts this information into the positions of the helicopter in the real world space. PID controller is used for heading angle control. Fuzzy-PID controller is chosen to control X and Y positions of the helicopter. Fuzzy controller is selected for altitude control. The experiment is separated into three parts, semi-automatic hovering control ,which the throttle channel of the helicopter is manually controlled, with one desired position and heading angle, full-automatic hovering control with one desired position and heading angle, and last, full-automatic hovering control with two desired positions and heading angles. The results confirm the competent hovering performance of the helicopter.
KeywordCoaxial helicopter; Visual servoing; Automatic hovering control; PID control; Fuzzy control; Fuzzy-PID control.
Year2010
Corresponding Series Added EntryAsian Institute of Technology. Thesis ; no. ISE-10-31
TypeThesis
SchoolSchool of Engineering and Technology (SET)
DepartmentDepartment of Industrial Systems Engineering (DISE)
Academic Program/FoSIndustrial Systems Engineering (ISE)
Chairperson(s)Manukid Parnichkun
Examination Committee(s)Mongkol Ekpanyapong;Bohez, Erik L. J.
Scholarship Donor(s)Thailand (HM-King);RTG Fellowship
DegreeThesis (M.Eng.) - Asian Institute of Technology, 2010


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