Fundamental evaluation of fixed position on water sensing device for long-term monitoring system

Marine and lake monitoring have been received a lot of attention. We are developing a sensing device that can keep a fixed position on water autonomously for long term environmental measurement. The concepts of the device is low power consumption, low cost, omni-directional move and portable design. In this paper, we present a long-term surface monitoring system and a new prototype design of the sensing device for the monitoring system. The proposed device is aiming to move to arbitrary directions and keep its positions autonomously on ocean or lake. In the several modular experiments, we confirmed the availability and some problems of the device.