公开(公告)号：US20240085913A1

公开(公告)日：2024-03-14

申请号：US18517006

申请日：2023-11-22

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Simin Zhang ,  Youjun Xiong

IPC: G05D1/02 ,  G01C21/00 ,  G05D1/00

CPC classification number: G05D1/0212 ,  G01C21/3841 ,  G05D1/0011

Abstract: A robot autonomous operation method, a robot, and a computer-readable storage medium are provided. The method includes: moving the robot, under a control of a user, along a guide path in an operation scene; generating a map including the guide path by positioning and mapping during the robot being moved along the guide path in the operation scene; generating a plurality of operation points on the guide path in the map; generating an operation path, wherein the operation path passes through all of the unpassed operation points and has a shortest total distance; and moving the robot, according to the operation path, to each of the unpassed operation points so as to perform an operation. In this manner, it controls the robot to explore the guide path in the operation scene by manual guiding, which can improve the exploration efficiency and reduce the risk of exploring unknown operation scenes.

公开(公告)号：US11926052B2

公开(公告)日：2024-03-12

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 ,  B62D57/032 ,  G05D1/00

CPC classification number: B25J9/163 ,  B25J9/162 ,  B25J9/1664 ,  B62D57/032 ,  G05D1/02

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：US20240025038A1

公开(公告)日：2024-01-25

申请号：US18373991

申请日：2023-09-28

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yisen HU ,  Hao Dong ,  Hongyu Ding ,  Youjun Xiong

IPC: B25J9/16 ,  B25J9/10 ,  B62D57/032

CPC classification number: B25J9/163 ,  B25J9/1664 ,  B25J9/106 ,  B25J9/161 ,  B25J9/1607 ,  B62D57/032

Abstract: A robot control method, a legged robot using the same, and a computer-readable storage medium are provided. The method includes: obtaining a motion parameter of a driving mechanism of a target part of the robot; and obtaining an end pose of the target part by processing the motion parameter of the driving mechanism according to a preset forward kinematics solving model, where the forward kinematics solving model is a neural network model trained by a preset training sample set constructed according to a preset inverse kinematics function relationship. In this manner, a complex forward kinematics solving process can be transformed into a relatively simple inverse kinematics solving process and neural network model processing process, which reduces the computational complexity, shortens the computational time, thereby meeting the demand for real-time control of the robot.

公开(公告)号：US11875599B2

公开(公告)日：2024-01-16

申请号：US17393408

申请日：2021-08-04

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yusheng Zeng ,  Yepeng Liu ,  Jun Cheng ,  Jianxin Pang ,  Jing Gu

IPC: G06V40/16 ,  G06V10/46 ,  G06V10/98 ,  G06N3/08 ,  G06F18/214 ,  G06F18/2431 ,  G06N3/045

CPC classification number: G06V40/161 ,  G06F18/214 ,  G06F18/2431 ,  G06N3/045 ,  G06N3/08 ,  G06V10/462 ,  G06V10/993

Abstract: A method for detecting blurriness of a human face in an image includes: performing a face detection in a target image; when a human face is detected in the target image, cropping the human face from the target image to obtain a face image and inputting the face image to a first neural network model to perform preliminary detection on a blurriness of the human face in the face image to obtain a preliminary detection result; and when the preliminary detection result meets a deep detection condition, inputting the face image to a second neural network model to perform deep detection on the blurriness of the human face in the face image to obtain a deep detection result.

公开(公告)号：US11872701B2

公开(公告)日：2024-01-16

申请号：US17485412

申请日：2021-09-25

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Xiaozhu Ju ,  Yuesong Wang ,  Mingguo Zhao ,  Youjun Xiong

IPC: B25J9/16

CPC classification number: B25J9/1664 ,  B25J9/1607 ,  G05D2201/0217

Abstract: A total centroid state estimation method as well as a humanoid robot and a computer readable storage medium using the same are provided. The method includes: obtaining a motion state of each real joint of the humanoid robot and a motion state of its floating base, where the floating base is equivalent to a plurality of sequent-connected virtual joints; calculating a joint position, a centroid position, and a rotation matrix of each link in the world coordinate system in sequence using the chain rule of homogeneous multiplication according to the position of the joint corresponding to the link to solve a Jacobian matrix of the centroid of the link; solving a total centroid Jacobian matrix based on the Jacobian matrix of the centroid of each link and the total mass; and calculating the total centroid velocity based on the total centroid Jacobian matrix and other parameters.

公开(公告)号：US20240004400A1

公开(公告)日：2024-01-04

申请号：US18211531

申请日：2023-09-08

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yulong Gu ,  Simin Zhang ,  Yun Zhao

IPC: G05D1/02

CPC classification number: G05D1/0274 ,  G05D1/0248 ,  G05D1/0272 ,  G05D2201/0217

Abstract: A storage medium, a robot, and a method for generating navigation map are provided. By disposing a first lidar and a second lidar located higher than the first lidar, it constructs a first map corresponding to the first lidar based on first laser data collected by the first lidar, and calculate second positioning data corresponding to the second lidar during constructing the first map, constructs a second map corresponding to the second lidar based on the second positioning data and second laser data collected by the second lidar, and obtains a navigation map corresponding to the robot by fusing the first map with the second map, such that the fused map includes not only positioning information provided by the first map, but also obstacle information provided by the first map and the second map.

公开(公告)号：US20240001558A1

公开(公告)日：2024-01-04

申请号：US18369858

申请日：2023-09-19

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： SHUO ZHANG ,  Zheng Xie ,  Yizhang Liu ,  Zhihao Zhang ,  Yingfu Zeng ,  Youjun Xiong

IPC: B25J9/16

CPC classification number: B25J9/1692 ,  B25J9/1697

Abstract: A robot calibration method, a robot, and a computer-readable storage medium are provided. The method includes: obtaining operation space information of the execution end of the robot; obtaining operation space points after gridding an operation space of the robot by gridding the operation space based on the operation space information; obtaining calibration data by controlling the execution end to move to the operation space points meeting a preset requirement; and calibrating the hand and the image detection device of the robot based on the obtained calibration data. In this manner, the operation space points are determined by gridding the operation space based on the operation space information, and the execution end can be automatically controlled to move to the operation space points that meet the preset requirements so as to obtain the calibration data in an automatic and accurate manner, thereby simplifying the calibration process and improving the efficiency.

公开(公告)号：US11833673B2

公开(公告)日：2023-12-05

申请号：US17499890

申请日：2021-10-13

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Zhongkui Huang ,  Zheng Xie ,  Hongyu Ding ,  Qixiang Luo

IPC: B25J19/00 ,  B25J9/10 ,  B25J9/12

CPC classification number: B25J19/0016 ,  B25J9/102 ,  B25J9/108 ,  B25J9/109 ,  B25J9/123

Abstract: An energy storing assistive mechanism includes a barrel having a first pivot end and an open end, a rod having a first end that passes through the open end and is received in the barrel, an elastic structure including two ends that abut against the first end of the rod and the first pivot end, a uni-directional gear rack having a second pivot end away from the barrel, and a locking mechanism fixed to the rod, the locking mechanism comprising a locking member and an actuator assembly that is to drive the locking member to move between a first position where the locking member is engaged with the gear rack, and a second position where the locking member is disengaged from the gear rack.

公开(公告)号：US20230373089A1

公开(公告)日：2023-11-23

申请号：US18230620

申请日：2023-08-05

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： JIAJUN WANG ,  Mingguo Zhao ,  Youjun Xiong

IPC: B25J9/16

CPC classification number: B25J9/1661

Abstract: A method for controlling a robot includes: obtaining current motion state information of the robot and desired motion trajectory information corresponding to a target task; determining task execution coefficient matrices corresponding to the robot performing the target task according to the desired motion trajectory information and the motion state information; constructing matching dynamic constraints for task-driven parameters of the robot according to the desired motion trajectory information and the motion state information; constructing matching parameter distribution constraints for the task-driven parameters according to the motion state information and body action safety constraints corresponding to the target task; solving a pre-stored task execution loss function by using the task execution coefficient matrices to obtain the target-driven parameters satisfying the dynamic constraints and the parameter distribution constraints; and controlling operation state of each joint end effector of the robot according to the target-driven parameters.

公开(公告)号：US20230359207A1

公开(公告)日：2023-11-09

申请号：US18222448

申请日：2023-07-16

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： QIUYUE LUO ,  Ligang Ge ,  Yizhang Liu ,  Jie Bai ,  Youjun Xiong

IPC: G05D1/02 ,  B25J11/00 ,  B25J9/10

CPC classification number: G05D1/0212 ,  B25J11/00 ,  B25J9/10

Abstract: A trajectory planning method, a computer-readable storage medium, and a robot are provided. The method includes: constructing a phase variable of a trajectory planning of a robot, where the phase variable is a function of two position components of a torso of the robot on a horizontal plane; and performing, using the phase variable replacing a time variable, the trajectory planning on a swinging leg of the robot in each preset coordinate axis direction. In this manner, the robot can no longer continue to follow the established trajectory after being disturbed by the environment, but make state adjustments according to the disturbance received to offset the impact of the disturbance, thereby maintaining walking stability and avoiding the problem of early or late landing of the swinging leg.