A motion assist system includes a plurality of assist devices and a management device configured to manage the assist devices. The assist device includes: a power portion configured to generate power that assists the motion of the assist target person; a communication portion communicable with the management device; and a control device configured to transmit motion information of the power portion to the management device. The management device generates overall information that unifies working states of the assist target persons based on pieces of motion information and presents at least part of the overall information to the assist target persons or an administrator.

A motion assist system includes a plurality of assist devices and a management device configured to manage the assist devices. The assist device includes: a power portion configured to generate power that assists the motion of the assist target person; a communication portion communicable with the management device; and a control device configured to transmit motion information of the power portion to the management device. The management device generates overall information that unifies working states of the assist target persons based on pieces of motion information and presents at least part of the overall information to the assist target persons or an administrator.

The present invention introduces a new concept of applying a parallel mechanism in automated fiber placement for aerospace part manufacturing. The proposed system requirements are 4DOF parallel mechanism consisting of two RPS and two UPS limbs with two rotational and two translational motions. Both inverse and forward kinematics models are obtained and solved analytically. Based on the overall Jacobian matrix in screw theory, singularity loci are presented and the singularity-free workspace is correspondingly illustrated. To maximize the singularity-free workspace, locations of the two UPS limbs with the platform and base sizes are used in the optimization which gives a new design of a 4DOF parallel mechanism. A dimensionless Jacobian matrix is also defined and its condition number is used for optimizing the kinematics performance in the optimization process. A numerical example is presented with physical constraint considerations of a test bed design for automated fiber placement.

A system and method for a transportation device that utilizes an alternative biomechanics framework for the human lower body that may be used in any transportation vehicle in conjunction or as an alternative to wheels whereby the bones, muscles, and connective tissue of the lower body function together to produce the mechanics of a single wheel rather than the conjoined pendulums of the leading inverted pendulum model of biomechanics.

A system and method for a transportation device that utilizes an alternative biomechanics framework for the human lower body that may be used in any transportation vehicle in conjunction or as an alternative to wheels whereby the bones, muscles, and connective tissue of the lower body function together to produce the mechanics of a single wheel rather than the conjoined pendulums of the leading inverted pendulum model of biomechanics.