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Both motor ability and sensory ability are important to generate human daily motion. However, owing to ageing and/or physical handicap, these abilities sometimes decline. In order to assist motor ability and sensory ability, lower-limb/upper-limb power-assist robots with the perception-assist function have been proposed. By using the perception-assist function, the user's motion is automatically modified...
Studies on power-assist robots are actively performed to assist human motion. Some of them are applied to assist the daily motion of physically weak persons such as elderly persons. Perception-assist was proposed to avoid an unexpected accident of users of the power-assist robot. In perception-assist, a virtual wall is sometimes used to avoid stumbling accident. In this paper, an effective shape of...
A lower-limb power-assist robot is expected to assist physically weak persons to walk, stand up, or sit down. However, since the environment perception ability of the physically weak persons is sometimes deteriorated also, falling accident might occur even though the power-assist is applied. A concept of perception-assist has been proposed to avoid an unexpected accident. This paper proposes a perception-assist...
The Rubber Hand Illusion is a well known multisensory illusion in which the participant feels their own unseen hand become a rubber hand that is placed at the position where their hand is supposedly placed, triggered by synchronized haptic stimuli on their hand and the rubber hand. Our previous study showed that a robotized 1-degree-of-freedom rubber hand in the form of a master-slave system significantly...
Power-assist robots are expected to assist the motion in daily living of physically weak persons. The concept of perception-assist has been proposed to assist the sensory ability in addition to the assist of motor ability of the user. In the perception-assist for a lower-limb power-assist robot, perception-assist can be applied to avoid the unexpected stumbling of the user. In that case, a virtual...
In the case of some elderly or disabled persons, not only the motor ability, but also the environment perception ability is sometimes deteriorated. To assist the daily living motion of those people, power-assist robots with the perception-assist have been proposed. The power-assist robot with the perception-assist assists not only the user's motion but also the user's interaction with an environment,...
In the case of some elderly whose motor ability is deteriorated, the environment perception ability is sometimes deteriorated also. In order to deal with that problem, the power-assist robot with the perception-assist, which assists not only the user's motion but also the user's interaction with an environment, has been proposed. The power-assist robot with the perception-assist has some sensors in...
A tremor is somewhat rhythmic motion that may occur in various body parts. An essential tremor is one of the most common tremor disorders of the arm and it may occur during a voluntary motion. If the essential tremor occurs in the arm, the person may not be able to achieve the target task properly since the human performs various sensitive tasks with certain tools. Suppressing the vibration of the...
Many kinds of power-assist robots have been developed in order to assist daily life motions of the elderly or physically weak persons. A human upper-limb has 7 degrees of freedom to achieve various tasks dexterously. Therefore, to assist all upper-limb joint motions of a human, the upper-limb power-assist robot is required to have 7DOF. On the other hand, to achieve a desired task, a person moves...
This paper proposes a method for understanding the fuzzy linguistic information based on the user's guidance. A quantitative assessment for a fuzzy linguistic term such as “little” depends on the environmental conditions. Therefore the corrective feedbacks are utilized to adapt the robot's perception toward the corresponding environment. However, the attentive commands like “move carefully” are used...
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