Patents by Inventor Zecai Lin

Zecai Lin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11331806
    Abstract: The present disclosure discloses a robot control method as well as an apparatus, and a robot using the same. The method includes: obtaining a human pose image; obtaining pixel information of key points in the human pose image; obtaining three-dimensional positional information of key points of a human arm according to the pixel information of the preset key points; obtaining a robotic arm kinematics model of a robot; obtaining an angle of each joint in the robotic arm kinematics model according to the three-dimensional positional information of the key points of the human arm and the robotic arm kinematics model; and controlling an arm of the robot to perform a corresponding action according to the angle of each joint. The control method does not require a three-dimensional stereo camera to collect three-dimensional coordinates of a human body, which reduces the cost to a certain extent.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: May 17, 2022
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Zecai Lin, Miaochen Guo, Yizhang Liu, Youjun Xiong, Jianxin Pang
  • Patent number: 11331802
    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.
    Type: Grant
    Filed: January 5, 2020
    Date of Patent: May 17, 2022
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Zecai Lin, Zhaohui An, Zheng Xie, Yizhang Liu, Youjun Xiong, Jianxin Pang
  • Patent number: 11325247
    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.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: May 10, 2022
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Zecai Lin, Zhaohui An, Yizhang Liu, Meihui Zhang, Youjun Xiong, Jianxin Pang
  • Publication number: 20210197384
    Abstract: The present disclosure discloses a robot control method as well as an apparatus, and a robot using the same. The method includes: obtaining a human pose image; obtaining pixel information of key points in the human pose image; obtaining three-dimensional positional information of key points of a human arm according to the pixel information of the preset key points; obtaining a robotic arm kinematics model of a robot; obtaining an angle of each joint in the robotic arm kinematics model according to the three-dimensional positional information of the key points of the human arm and the robotic arm kinematics model; and controlling an arm of the robot to perform a corresponding action according to the angle of each joint. The control method does not require a three-dimensional stereo camera to collect three-dimensional coordinates of a human body, which reduces the cost to a certain extent.
    Type: Application
    Filed: April 9, 2020
    Publication date: July 1, 2021
    Inventors: Zecai Lin, Miaochen Guo, Yizhang Liu, Youjun Xiong, Jianxin Pang
  • Publication number: 20210187731
    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.
    Type: Application
    Filed: March 12, 2020
    Publication date: June 24, 2021
    Inventors: ZECAI LIN, Zhaohui An, Yizhang Liu, Mekhui Zhang, Youjun Xiong, Jianxin Pang
  • Publication number: 20210146538
    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.
    Type: Application
    Filed: January 5, 2020
    Publication date: May 20, 2021
    Inventors: Zecai Lin, Zhaohui An, Zheng Xie, Yizhang Liu, Youjun Xiong, Jianxin Pang