Intention Recognition and Support Computation To compute a sensible support
for the actuation, the desired action of the operator has to be known to the system.
As motivated in the previous section, the interface between the operator and the exoskeleton
is based on EMG signals. In addition, some information about the kinematic
state of the operator is known. The activation and the state information have to be
read and evaluated with a short latency to deduct the desired action of the operator and
subsequently a sensible support that can be contributed by the actuator. The latency
of the system has to be kept so small, that stable movement with a useful gain is possible.
Otherwise the supported leg would always move late, leading to an unbalanced
movement. It is hard to quantify the latency more accurate than short enough. The
validity of the realized latency can only be verified with experiments that show the
overall performance of the system.