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In this study, we propose a low-cost power-assisted cart that distributes the torque of a motor using a differential gear and brakes. Carts are designed to help transport heavy payloads and have multiple applications. As the cart size and payload weight increase, cart operation becomes difficult. This led to the development of power-assisted carts, which employ actuators to support the workload.
Wire-driven haptic devices can easily achieve highspeed operation because of the low inertia of light and thin wires. Therefore, it is expected to be widely used as a motion support system in fields such as sports training. However, usually these wires are driven by controlling each wire's tension using servo motors, which raises concerns about the safety in human-robot interaction. Thus, we propose...
Human action/behavior classification plays an important role for controlling systems having interaction with human users. Safety and dependability of such systems are crucial especially for walking assist systems. In this paper, upper body joint model of a user of a walking assist system is extracted using a depth sensor and a probabilistic model is proposed to detect possible non-walking states that...
This paper proposes a distributed motion control algorithm of multiple passive mobile robots for handling an object in cooperation with a human. The driving force of the passive mobile robot is an actual force applied by the human and the servo brakes attached to the wheels control its motion. Different from the active-type robot with servo motors, the passive robot has the control limitation based...
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