Abstract
This paper describes the underwater data collection utilizing stationary sensor node and movable sensor node. We consider applying the system to investigate the conditions of marine ecosystem around the coral reef at Okinawa, Japan. The framework and fundamental design of our proposed underwater information gathering system under development are introduced. It is also reported the development of the prototypes of the sensory node and movable sensor node. Basic examinations utilizing such prototype at underwater environment are also described. This paper also describes experimental results of image gathering from via wireless local area network communication. Our future trials based on the current developmental situation are also discussed.
Highlights
The water covers the earth with over 70%
Watanabe et al [12] proposed the concept of a coral reef monitoring system and developed a prototype of a compact autonomous unmanned vehicle (AUV)
First prototype is for preliminary examination to collect the underwater conditions. Communication unit of this first prototype floated on the sea surface for image providing via wireless local area network (LAN) and the sensor unit is to be set into sea water for capturing the images
Summary
The water covers the earth with over 70%. It includes oceans, rivers, lakes, ponds, and glaciers. Watanabe et al [12] proposed the concept of a coral reef monitoring system and developed a prototype of a compact autonomous unmanned vehicle (AUV) It was for measuring the shape of the environment like the bottom of the ocean based on ultrasonic sonar sensor. Vasilescu et al [13] proposed an underwater sensor network system with stationary nodes and an underwater vehicle Their system utilized acoustic communication for collecting temperature and pressure data at underwater environment. We introduce our research and development activities of our wireless sensor network system for collecting underwater data.
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