Recently, with the progress of computers, robot manipulators have obtained some abilities of perception and judgmenl. However, it st ill remains a dream that robots have the same or more nexible intelligence than humans. In the mean time, the physical ability of a robot manipulmor is superior in cases such as carrying heavy loads.
Many places in the world are too rugged or enclosed for vehicles to access. Even today, material transport to such areas is limited to manual labor and beasts of burden.
The primary Objective of the Berkeley lower Extremity Exoskeleton (BLEEX) Project at the University of California, Berkeley is to develop fundamental technologies associated with the design and control of energetically autonomous lower extremity exoskeletons that augment human strength and endurance during locomotion.