The speed of signals that are conveyed from the brain to each muscle is between approximately 150km/h and 400km/h, which is far beyond the speed of Shinkansen bullet train.
It is indispensible for HAL to employ the technology to recognize and understand those high-speed signals at a glance.
In order to actualize complex bodily motions for walking, the brain always controls number of muscles based on various information from the whole body.
The device that was developed as an application of this principle, was HAL.
BES that leaks out on the skin surface is so feeble. Its voltages are only from 1/1000th to 1/100,000th of the ones that are exerted by dry batteries
As HAL is able to detect such weak signals, it does not overlook the wearer‘s so subtle motions that cannot cause flexion of the leg.
Man‘s speeds of thinking in the brain, controlling the muscle and moving the joint are extremely rapid.HAL, as well as man, is also able to process various information instantly and control the power unit promptly.When the body starts moving, HAL starts moving at the same time. Therefore HAL is able to assist the wearer‘s motions.
