Abstract
In Japan, the disruption of ecosystems caused by alien fish in lakes and ponds is a major issue. To address this problem, we propose that the robotic fish COMET can assist in alien fish extermination by adding the function of spear shooting. The way of extermination is that when COMET finds an alien fish, let COMET approach an alien fish without being wary it and spear it. In this study, we investigated the spear shooting process under different movement conditions to determine the impact on the accuracy of the trajectory of the spear. The results confirmed that a certain set of conditions can improve the accuracy of hitting the target with a spear using specific movements of the robotic fish.
Highlights
The disruption of ecosystems caused by alien fish is a global issue, including in Japan [1]
It has been confirmed that the robotic fish COMET developed by Aritani et al [12] can track fish without them being aware of it
We manufactured a spear shooting mechanism that can be equipped with a robotic fish developed to improve the shooting accuracy of spears and we conducted spear shooting experiments incorporating the motion of yawing and rolling caused by the robotic fish movements because the effects of rolling and yawing motions by robotic fish on the behavior of a spear shot from robotic fish have not been investigated so far
Summary
The disruption of ecosystems caused by alien fish is a global issue, including in Japan [1]. It has been confirmed that the robotic fish COMET (compact observation machine equipped with tailfin) developed by Aritani et al [12] can track fish without them being aware of it. In this study, we developed a spear shooting mechanism that can be equipped with a small robotic fish COMET developed in an earlier study. We conducted spear shooting experiments in situations where the motion characteristics of a small robotic fish were reproduced and we considered the effect of the robot’s motion on the trajectory of the spear. Based on these results, we determined the conditions for the spears to reach the specified target from the small robotic fish
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