A man-machine interface is disclosed which provides force, texture, pressure
and
temperature information to sensing body parts. The interface is comprised of a
force-generating device (900) that produces a force which is transmitted
to a force-applying device (902) via force-transmitting means (908).
The force-applying device applies the generated force to a sensing body part. A
force sensor (909) associated with the force-applying device measures the
actual force applied to the sensing body part, while angle sensors (917)
measure the angles of relevant joint body parts. A computing device (911)
uses the joint body part position information to determine a desired force value
to be applied to the sensing body part. The computing device combines the joint
body part position information with the force sensor information to calculate the
force command which is sent to the force-generating device. In this manner, the
computing device may control the actual force applied to a sensing body part to
a desired force which depends upon the positions of related body parts. In addition,
the interface is comprised of a displacement-generating device (901) which
produces a displacement which is transmitted to a displacement-applying device
(902) (e.g., a texture simulator) via displacement-generating means (920).
The displacement-applying device applies the generated displacement to a sensing
body part. The force-applying device and displacement-applying device may be combined
to simultaneously provide force and displacement information to a sensing body
part. Furthermore, pressure and temperature-applying devices may be combined to
also provide pressure and temperature sensations to a sensing body part. In addition,
a force-applying device may be attached to a sensing body part and apply force
to the sensing body part, where the force is applied relative to a reference location
not rigidly affixed to the living body.