Abstract

The bipedal robot is one of the most attractive robots types given its similarity to the locomotion of human beings and its ability to assist people to walk during rehabilitation. This review summarizes the chronological historical development of bipedal robots and introduces some current popular bipedal robots age. Then, the basic theory-stability control and key technology-motion planning of bipedal robots are introduced and analyzed. Bipedal robots have a wide range of applications in the service, education, entertainment, and other industries. After that, we specifically discuss the applications of bipedal robots in lower limb rehabilitation, including wearable exoskeleton robots, rehabilitation equipment, soft exoskeleton robots, and unpowered exoskeleton robots, and their control methods. Lastly, the future development and the challenges in this field are discussed.

Highlights

  • Bipedal robots are robots with two legs; the main difference between them and other robots is their bipedal locomotion

  • Vukobratovic proposed an important theory on bipedal robots, the Zero Moment Point (ZMP) stability criteria [2]

  • European countries developed bipedal robots biased toward medical services, and the American research bipedal robot has focused on military applications

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Summary

Introduction

Bipedal robots are robots with two legs; the main difference between them and other robots is their bipedal locomotion. Japan has many other scientific research institutions engaged in bipedal robot development and theoretical research work, such as Matsushita Electric Works, Fujitsu, Farrah, and Hitachi They have performed significant research on bipedal robots and have achieved some success. The use of VMC effectively avoided the cumbersome robot dynamics and inverse kinematics calculations This was helpful for the research of bipedal robots. European countries developed bipedal robots biased toward medical services, and the American research bipedal robot has focused on military applications. Atlas can walk like a human body with its legs, but can adapt to a variety of outdoor terrain. These bipedal robots, as shown, represent the top level of bipedal robot development. The development of bipedal robots will promoteofthe development and rehabilitation will become one of the important applications bipedal robots. of rehabilitation, and rehabilitation will become one of the important applications of bipedal robots

Hardware and Structure
Motion Planning
Rehabilitation Application
Challenges and Outlooks
Conclusions
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