公开(公告)号：US20220152827A1

公开(公告)日：2022-05-19

申请号：US17314039

申请日：2021-05-06

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Xingxing Ma ,  Chunyu Chen ,  Ligang Ge ,  Hongge Wang ,  Mingqiang Huang ,  Jiangchen Zhou ,  Yizhang Liu ,  Zheng Xie ,  Youjun Xiong

IPC: B25J9/16

Abstract: A biped robot gait control method as well as a robot and a computer readable storage medium are provided. During the movement, the system obtains a current supporting pose of a current supporting leg of the biped robot, and calculates a relative pose between the supporting legs based on the current supporting pose and a preset ideal supporting pose of a next step. The system further calculates modified gait parameters of the next step based on the relative pose between the two supporting legs and a joint distance between left and right ankle joints in an initial state of the biped robot when standing. Finally, the system controls the next supporting leg to move according to the modified gait parameters.

公开(公告)号：US11331802B2

公开(公告)日：2022-05-17

申请号：US16734393

申请日：2020-01-05

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Zecai Lin ,  Zhaohui An ,  Zheng Xie ,  Yizhang Liu ,  Youjun Xiong ,  Jianxin Pang

IPC: B25J9/16 ,  B25J13/08

Abstract: A method for controlling an arm of a robot to imitate a human arm, includes: acquiring first pose information of key points of a human arm to be imitated; converting the first pose information into second pose information of key points of an arm of a robot; determining an angle value of each joint of the arm according to inverse kinematics of the arm based on the second pose information; and controlling the arm to move according to the angle values.

公开(公告)号：US11325247B2

公开(公告)日：2022-05-10

申请号：US16817576

申请日：2020-03-12

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Zecai Lin ,  Zhaohui An ,  Yizhang Liu ,  Meihui Zhang ,  Youjun Xiong ,  Jianxin Pang

IPC: B25J9/16 ,  B25J13/06

Abstract: The present disclosure provides a robotic arm control method as well as an apparatus and a terminal device using the same. The method includes: obtaining a current joint angle of each of M joints of the robotic arm; obtaining a reference included angle based on the current joint angle of each of the M joints of the robotic arm; determining an expected included angle corresponding to the robotic arm within a target angle range based on the reference included angle and the preset included angle related evaluation function; and controlling the robotic arm based on the target joint angles of the M joints.

公开(公告)号：US20210197370A1

公开(公告)日：2021-07-01

申请号：US17133575

申请日：2020-12-23

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Chunyu Chen ,  Yizhang Liu ,  Ligang Ge ,  Zheng Xie ,  Youjun Xiong ,  Jianxin Pang

IPC: B25J9/16 ,  G05D1/02 ,  B62D57/032

Abstract: A robot control method includes: acquiring distances between a center of mass (COM) of the biped robot and each of preset key points of feet of the biped robot, and acquiring an initial position of the COM of the biped robot; calculating a position offset of the COM based on the distances; adjusting the initial position of the COM based on the position offset of the COM to obtain a desired position of the COM of the biped robot; and determining desired walking parameters of the biped robot based on the desired position of the COM by using a preset inverse kinematics algorithm, wherein the desired walking parameters are configured to control the biped robot to walk.

公开(公告)号：US20210154853A1

公开(公告)日：2021-05-27

申请号：US16734400

申请日：2020-01-05

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： HONGGE WANG ,  Ligang Ge ,  Yizhang Liu ,  Jie Bai ,  Youjun Xiong ,  Jianxin Pang

IPC: B25J9/16 ,  B25J9/00

Abstract: The present disclosure provides a robot motion control method as well as an apparatus and a robot using the same. The method includes: obtaining geometric parameter(s) of a target step, where the geometric parameters comprise a step width and a step height of the target step; determining at least two time-displacement coordinates and a velocity vector corresponding to each time-displacement coordinate based on the geometric parameters; generating a motion trajectory by fitting the at least two time-displacement coordinates and the corresponding velocity vectors; and controlling feet of the robot to move based on the motion trajectory. In this manner, the feet of the robot can be prevented from colliding violently with the step during going up the step so as to improve the safety and stability.

公开(公告)号：US20190152061A1

公开(公告)日：2019-05-23

申请号：US16161077

申请日：2018-10-16

Applicant: UBTECH Robotics Corp

Inventor： Youjun Xiong ,  Yizhang Liu ,  Ligang Ge ,  Chunyu Chen

IPC: B25J9/16 ,  G10H1/00

Abstract: The present disclosure relates to a motion control method and device for a robot, and a robot with enhanced motion control. The method includes: receiving audio information by an audio receiver of the audio processing device in response to a key of an instrument being pressed, wherein the instrument is disposed within a default distance from the audio receiver; decoding the audio information and transforming the audio information into audio signals hs an audio decoder of the audio processing device; determining an expected movement of at least one joint of the robot according to a sound-freedom mapping table, and generating an adjustment message; receiving Joint-location information of the joint of the robot at a current moment; and driving the joint of the robot by the servo according to the adjustment message and the joint-location information.