基于三维线性倒立摆的仿人机器人步态规划

Humanoid robot gait planning based on 3D linear inverted pendulum model

为了实时调整仿人机器人的步态,提出一种仿人机器人的步态生成方法。把机器人运动简化为三维线性倒立摆运动模式,通过预先规划好的零力矩点(ZMP)轨迹,根据质心(CoM)和ZMP的关系,求出CoM轨迹;再将前向步态和侧向步态简化为七连杆结构和五连杆结构,利用三角定理求出各个关节的角度,结合ZMP方程讨论了行走过程中的稳定性。利用给定的条件进行了系统的仿真,并结合实际系统及其运行状况进行分析,验证了所提出规划方法的有效性。

In order to real-time adjust the humanoid robot gait, a humanoid robot gait generation method was proposed. The robot motion was simplified to the inverted pendulum motion of the three-dimensional linear model, and passed the preplanned Zero Moment Point （ZMP） trajectory. According to the Center of Mass （CoM） and ZMP relations, the CoM trajectory was obtained. The front side gait and lateral gait were simplified into seven-link and five-link structures, the triangle theorem was used to calculate the angle of each joint, and the ZMP equation was introduced to discuss the stability of the walking process. The system simulation was done according to given conditions and combined with the actual system and its operation conditions were analyzed to verify the validity of the proposed planning method.