| 摘要 |
A device which tracks the position in a horizontal plane of a contact point between a support limb, such as a leg, and a support surface, and the height of the contact point above the support surface at any moment, and uses these data to infer the movement of the support limb and hence the movement relative to the support surface. The device tracks the motion of the support limb(s) of a person, animal or mechanical system, and allows the direction and speed of movement in three dimensions to be reported to a computer running a suitable program. An electrically operated brake is also provided. The device may utilise a parallelogram type arrangement designed to hold a moving plate in constant orientation. The device enables full body motion to be incorporated into an operator's interaction with a computer by tracking the motions of the feet of the operator and thus allowing the computer to infer the position of the operator and adjust the view presented accordingly. |
