Son-Cheol Yu of Woods Hole Oceanographic Institution

Wireless Robotic Buoy utilizing oceanic wave and imaging sonar based Object Recognition for AUV

 Abstract:

This talk addresses two topics; 

1. Wireless Robotic Buoy: The proposed buoy has 3 representative functions: mooring-less station-keeping; a moving, submersible function in an emergency such as during a typhoon; and power generation using oceanic waves. For station-keeping and moving, the wave glider’s propulsion was used. For the generating of electric power, a novel wave turbine has been proposed and tested. It is shaped like a co-axial helicopter’s blades. The Robotic Buoy’s electrical generator blades were attached to the propulsion frame in a shape like a wind turbine. The oscillation of the surface wave generates the lift on each blade and the turbine is rotated. Two layers of turbine blades rotate in counter directions. The modeling, tank tests and sea-trials have been carried out. 

2. Recognition of Sonar Images for an AUV: DIDSON sonar based real-time object recognition methods are proposed. Element based techniques for the whole process of recognition, candidate searching, lock-on, approaching, and confirmation have been developed. Instead of a 2D image recognition approach, a beam slice based matching approach has been proposed for reliable detection requiring only modest computing power. A tank test and sea-trials have been carried out.

Biography:

Son-Cheol Yu, Ph.D.

Associate Professor

Dept. of Creative IT Engineering, POSTECH (Pohang University of Science and Technology), South Korea

Director, Gyeonbuk Sea Grant Center

Chair, IEEE Oceanic Engineering Society Korea Chapter   

Guest Investigator, Woods Hole Oceanographic Institution

E-mail: sncyu@postech.ac.kr 

Research Interests

AUV, Underwater Sensing, Hazardous Environment Robotics 

Education

Ph.D (2003), M.E. (2000) at Dept. of Environmental and Oceanic Eng., University of Tokyo,

B.E. (1998) at Dept. of Naval Architecture and Ocean Eng., Inha University, South Korea

Employment

Assistant & Associate Professor, Dept. of Creative IT Eng./ Ocean Science and Technology Institute, POSTECH (2010-Present)

Assistant Professor     School of Mechanical Eng., Pusan National University (2008 - 2010)

Postdoctoral Fellow & Assistant Researcher, Dept. of Mechanical Eng., University of Hawaii (2004- 2008)

Honors and Awards

Distinguished Service in Ocean Development, Governor of Gyeonbuk (2014)

Best Paper Award, ISOPE (International Society of Offshore structure and Polar Engineering) (2005)

Email:

Address:Woods Hole Oceanographic Insitution, Blake Building, Woods Hole, Massachusetts, United States, 02543

Son-Cheol Yu of Woods Hole Oceanographic Institution

Biography:

Email:

Address:Woods Hole, Massachusetts, United States