Buzz
Running as fast as flying, once a fantasy 20-30 years ago, is now a reality. Recently, Stanford University researchers developed an externally fitted robot skeleton, using mechanics to adjust to the user's stride. This aids those with limited leg mobility in walking more effortlessly.
The externally fitted robot skeleton on the lower leg resembles a mechanized boot, lightweight and enabling users to move more comfortably and faster than usual, while minimizing bodily exertion.
Fortunately, it is crafted from cost-effective materials and affordable sensors, resulting in remarkably low completion costs. A small-sized motor and a Raspberry Pi controller, powered by a waist-mounted battery pack, operate efficiently. Concealed sensors inside measure force, stride, and user movement speed.
All operational data is transmitted to the ECU, which then adjusts the device to fine-tune support, actuating lever arms at the ankle to replicate certain functions of leg muscles. This assists users in lifting off the ground for balanced and even steps.
This aids users of this product in walking faster, and most importantly, with minimal effort. It takes approximately one hour for this model to assist the wearer by learning continuous habits from sensors. This robot skeleton can also adapt over time as the user's walking pattern changes.
Compared to daily walking, this device has increased movement speed by an additional 9% and reduced body energy consumption by up to 17% compared to natural walking. Unlike other devices on treadmills, this robot skeleton is designed to halve body movement, doubling the efficiency of body motion. Additionally, energy savings and increased walking speed contribute to users feeling more comfortable during daily mobility.
This is not the first product in the current market. Previously, supportive exoskeletons have appeared extensively, but they were bulky and heavy, often limited to laboratory settings or treadmills, accompanied by a hefty price tag. Stanford University's research group's robot skeleton is compact, lighter than previous products, and, most importantly, cost-effective and user-friendly.
According to researchers from Stanford University, this is the first time an externally fitted robot skeleton has the capability to save energy for humans in real-world situations. Researchers believe it allows older individuals with limited mobility or those with muscle injuries to walk more easily.
With the current development in mechanical engineering and dynamic technology, assistive robotic models for humans are becoming increasingly modern and sophisticated. This supports individuals with physical impairments as well as those desiring to push their limits in real-world conditions.
Hopefully, the product from researchers at Stanford University will be perfected soon and introduced to the market. This will significantly contribute to the mobility support of many individuals with physical disabilities worldwide.
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