TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
Online ISSN : 1884-8354
ISSN-L : 1884-8354
Regular Paper
Target Following Control of Small Fish Robot FOCUS Based on Color Information
Yogo TAKADATsuyoshi NAKAMURAKeisuke KOYAMATomoki TAJIRI
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JOURNAL FREE ACCESS

2012 Volume 78 Issue 792 Pages 2924-2934

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Abstract

It is necessary for a small aqua robot to search for a target in order to investigate creatures such as fishes in a river or lake. However, control signals by electric wave from outside do not reach a robot easily in water. Therefore, aqua robots must search the target autonomously without signals from outside. It is important for a robot to gaze forward and recognize the target in water. In this study, we have used a fish robot named FOCUS which can swim in water by using the tail fin. This robot has some micro CMOS cameras and a FPGA circuit board for data processing. A red object is detected with the CMOS camera. In addition, FPGA calculates where the red object is located in the image. This robot controls the tail fin mechanism and submersible system in order to decide the course of the robot in response to the calculated positional coordinates. We have confirmed that this robot can recognize a color target and follow the target in water.

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© 2012 The Japan Society of Mechanical Engineers
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