The COG trajectory planning method is the primary concern in the gait planning for quadruped robot, especially when the quadruped robot travelling on rough terrain. In this paper, we focus on the scenario where the quadruped robot walking on the rough terrain with the static walking gait. We present a smooth COG trajectory generator that the COG smooth trajectory characterized by continuous velocity and acceleration profiles can be generated automatically according to the current foot placement of the robot. A composite COG trajectory composed of quintic curves and straight lines is proposed in this paper. When the robot swings a leg forward, the COG trajectory is desired to be a straight line to eliminate the influence of acceleration of the body on the stability of the robot. However, the COG trajectory is desired to be a quintic curve when the robot is in the four legs support stage to guarantee the continuity of the COG trajectory. Moreover, the walk efficiency and the ability to keep the stability of robot are considered in this paper. Base on the COG trajectory generate method and the gait planning provided in this paper, the robot can walk through the rough terrain as soon as possible in the condition that the stability margin of the robot no less than the minimum stability margin. Via simulation the performance of the proposed COG trajectory is verified.
목차
Abstract 1. Introduction 2. Mechanism Model of the Quadruped Robot 3. Related Concepts of Gait Planning for the Quadruped Robot 3.1. Kinematic Margin of the Quadruped Robot 3.2. The Static Stability Criterion of the Quadruped Robot 3.3. Foot Trajectory Planning 3.4. Foot Placing Sequence 4. The COG Trajectory Generation of the Quadruped Robot 4.1 Calculation of the Related Parameters Needed in the COG Trajectory Planning 4.2 The Trajectory Generation of the COG for the Quadruped Robot 5. Dynamics Simulation with Webots and Performance Analysis 6. Conclusion Acknowledgements References
보안공학연구지원센터(IJCA) [Science & Engineering Research Support Center, Republic of Korea(IJCA)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Control and Automation
간기
월간
pISSN
2005-4297
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Control and Automation Vol.8 No.9