Lateral line is a system of sense organs that can aid fishes to maneuver in a dark environment. Artificial lateral line (ALL) imitates the structure of lateral line in fishes and provides invaluable means for underwater-sensing technology and robot fish control. This paper reviews ALL, including sensor fabrication and applications to robot fish. The biophysics of lateral line are first introduc...

In this paper, a new method was proposed for the navigation of a mobile robot in an unknown dynamic environment. The robot could detect only a limited radius of its surrounding with its sensors and it went on the shortest null space (SNS) toward the goal. In the case of no obstacle, SNS was a direct path from the robot to goal; however, in the presence of obstacles, SNS was a space around the r...

We propose a water pollution source mapping system based on ubiquitous sensor networks that fish robots search the source of water pollution autonomously. To verify the effectiveness of a water pollution source mapping system, we made a model water pool in which a fish robot pursues infrared measurements of reflection to various colors at the bottom of the pool. The model of water pollution con...

In this study, a robotic fish inspired to carangiform swimmers has been developed. The artifact presents new transmission system that employs the magnetic field interaction of permanent magnets ensure waterproofness and prevention from any overload for structure actuating motor. This mechanism converts rotary motion motor into oscillatory motion. Such an oscillating system, along with wire-driv...

Abstract Based on the characteristics of high-frequency swing during fast swimming fish, this paper designs a bionic fish-driven joint based electromagnetic drive to achieve swing. Aiming at characteristic parameters control, Fourier transform is used separate and then compared driving accuracy joints in open-loop closed-loop. The comparison results show that closed-loop control performed after...

gait rehabilitation using body weight support on a treadmill is a recommended rehabilitation technique for neurological injuries, such as spinal cord injury. in this paper, a new robotic orthosis is presented for treadmill training. in the presented design the criteria such as low inertia of robot components, backdrivability, high safety and degrees of freedom based on human walking are conside...