Based on the ZMP(zero moment point)trajectory and the walking data of human,a new method is proposed to improve the robot walking smoothness as well as to save energy.Firstly,a measurement system is designed to measur...Based on the ZMP(zero moment point)trajectory and the walking data of human,a new method is proposed to improve the robot walking smoothness as well as to save energy.Firstly,a measurement system is designed to measure the data of humans including the ZMP trajectory and the waist trajectory.Secondly,a new gait planning method which includes presetting the allowable ZMP region is proposed through analyzing human data.Thirdly,the new planning method is applied to the multi-link model based gait planning method.Finally,the feasibility of the proposed method is verified by simulation and experiments.展开更多
通过人体示教计算零力矩点(zero moment point,ZMP),并通过补偿关节角度对其矫正的方法可以解决机器人步行不稳定的问题,但仍存在算法复杂度过高等问题。本文提出一种人体示教与机器学习相结合的方法,基于支持向量回归算法建立机器人的...通过人体示教计算零力矩点(zero moment point,ZMP),并通过补偿关节角度对其矫正的方法可以解决机器人步行不稳定的问题,但仍存在算法复杂度过高等问题。本文提出一种人体示教与机器学习相结合的方法,基于支持向量回归算法建立机器人的步态平衡泛化模型,通过该模型可以实现对模型输入人体示教的关节角度和ZMP信息后直接得到经稳定性补偿的关节角度,并以此驱动机器人完成步行动作。引入鲸鱼优化算法(whale optimization algorithm,WOA)优化模型的参数以使模型得到最优的泛化效果,完善步态平衡模型的性能。WEBOTS仿真平台下,使用模型输出的补偿后的关节角度驱动NAO机器人,其动作自然、稳定且算法复杂度较低,验证了本文方法的可行性。展开更多
基金the National Natural Science Foundation of China(61320106012,61533004,61375103,61673069,61321002)the 863 Program of China(2015AA043202,2015AA042305)+2 种基金the Key Technologies R&D Program(2015BAF13B01,2015BAK35B01)the Beijing Municipal Science and Technology Project(D161100003016002)the"111"Project(B08043)
文摘Based on the ZMP(zero moment point)trajectory and the walking data of human,a new method is proposed to improve the robot walking smoothness as well as to save energy.Firstly,a measurement system is designed to measure the data of humans including the ZMP trajectory and the waist trajectory.Secondly,a new gait planning method which includes presetting the allowable ZMP region is proposed through analyzing human data.Thirdly,the new planning method is applied to the multi-link model based gait planning method.Finally,the feasibility of the proposed method is verified by simulation and experiments.
文摘通过人体示教计算零力矩点(zero moment point,ZMP),并通过补偿关节角度对其矫正的方法可以解决机器人步行不稳定的问题,但仍存在算法复杂度过高等问题。本文提出一种人体示教与机器学习相结合的方法,基于支持向量回归算法建立机器人的步态平衡泛化模型,通过该模型可以实现对模型输入人体示教的关节角度和ZMP信息后直接得到经稳定性补偿的关节角度,并以此驱动机器人完成步行动作。引入鲸鱼优化算法(whale optimization algorithm,WOA)优化模型的参数以使模型得到最优的泛化效果,完善步态平衡模型的性能。WEBOTS仿真平台下,使用模型输出的补偿后的关节角度驱动NAO机器人,其动作自然、稳定且算法复杂度较低,验证了本文方法的可行性。
