Scientists develop quadruped robot that can change gait depending on its speed

Scientists have, for the first time, successfully developed a four-legged robot that can spontaneously change its gait when speed is varied.

By: PTI | Updated: March 27, 2017 2:29 pm
four legged robot, robots, user friendly legged robots, adaptive legged robots in disaster areas, motion capture robots, quadruped gait transition phenomena, adaptive robot locomotion, Robot gait patterns, Robotics, Science, Science news Researchers from the Tohoku University in Japan successfully demonstrated the reproduction of the quadruped gait transition phenomena. (Source: Tohoku University)

Scientists have, for the first time, successfully developed a four-legged robot that can spontaneously change its gait when speed is varied.

The advance may lead to a wide range of applications such as adaptive legged robots working in disaster areas, user-friendly legged entertainment robots and automatic motion-creation algorithms for computer graphics animation.

Until now, the manner in which changing speeds cause quadrupeds to change their gaits – walking, trotting and galloping – was poorly understood.Researchers from the Tohoku University in Japan successfully demonstrated the reproduction of the quadruped gait transition phenomena.

They achieved this via a decentralised control scheme, using a simple local rule in which a leg continues to support the body while sensing weight on the corresponding leg. Moreover, they confirmed that the energy-efficiency profile of the robot’s gait patterns matched those measured in horses.

Also Read: ‘Robots may help provide social care for elderly’

The research is expected to lead to better understanding of the mechanism of how quadrupeds can flexibly and efficiently adjust their gait when their speed is changed, researchers said. The result may constitute the basis of an unconventional approach to coordinating the many degrees of freedoms required for adaptive robot locomotion.

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