Abstract
A simple and low cost drifting buoy using Android smart phone was developed. The drifting buoy can detect its own position using GPS system and also measure wind velocity and direction. The measured data can be immediately transmitted to a distant location by 3rd generation mobile phone network which is available in coasting area. A field test was conducted to verify its basic function and found that the system can work well in coastal water and is applicable to monitoring and forecasting floating debris as well as spilled oil.
