Patents by Inventor YAOHUI MA

YAOHUI MA 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: 11720119
    Abstract: A path planning method of mobile robots based on image processing is provided and includes: S1, preprocessing a map image: calculating a safety distance between a mobile robot and a surrounding obstacle during a movement of the mobile robot based on external geometric features of the mobile robot, forming a circular range on the map image with a expansion point as a center and the safety distance as an expansion radius to set a safety range, and marking the safety range; performing skeleton feature extraction on the map image after the marking to obtain a reference path map; S2, obtaining an initial path; and S3, optimizing the initial path. The path planning method improves the flexibility of the algorithm and has high robustness and operational efficiency, and the optimal path obtained can ensure the moving safety of the mobile robot.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: August 8, 2023
    Assignee: JILIN UNIVERSITY
    Inventors: An Cui, Tianmengyu Liang, Liyuan Liu, Yaohui Ma, Yingping Xu, Mengmeng Yang
  • Publication number: 20230236605
    Abstract: A path planning method of mobile robots based on image processing is provided and includes: S1, preprocessing a map image: calculating a safety distance between a mobile robot and a surrounding obstacle during a movement of the mobile robot based on external geometric features of the mobile robot, forming a circular range on the map image with a expansion point as a center and the safety distance as an expansion radius to set a safety range, and marking the safety range; performing skeleton feature extraction on the map image after the marking to obtain a reference path map; S2, obtaining an initial path; and S3, optimizing the initial path. The path planning method improves the flexibility of the algorithm and has high robustness and operational efficiency, and the optimal path obtained can ensure the moving safety of the mobile robot.
    Type: Application
    Filed: September 15, 2022
    Publication date: July 27, 2023
    Inventors: An Cui, Tianmengyu Liang, Liyuan Liu, Yaohui Ma, Yingping Xu, Mengmeng Yang
  • Patent number: 10205368
    Abstract: An auxiliary fixing device for mounting a long screw of a direct current motor comprises a base and a vertically arranged support frame, the base is provided with a motor front end cover positioning plate, and a lower end of the support frame is fixed with a rear side of the base; the support frame is fixed with a lifting driving mechanism, and the lifting driving mechanism is fixed with a motor rear end cover compressing plate; the motor rear end cover compressing plate is provided with a number of long screw abdicating grooves corresponding to long screw through holes on the motor rear end cover; the base is provided with a front output shaft groove through which a motor front output shaft can pass, and the motor front end cover positioning plate is provided with a bearing chamber positioning groove which is matched with a motor front bearing chamber; and the motor rear compressing plate is provided with an outgoing line guide groove which is configured to accommodate a motor rear end cover outgoing line.
    Type: Grant
    Filed: May 29, 2016
    Date of Patent: February 12, 2019
    Assignee: ZHEJIANG LINIX MOTOR CO., LTD.
    Inventors: Zhubing Sun, Yaohui Ma
  • Publication number: 20170063207
    Abstract: An auxiliary fixing device for mounting a long screw of a direct current motor comprises a base and a vertically arranged support frame, the base is provided with a motor front end cover positioning plate, and a lower end of the support frame is fixed with a rear side of the base; the support frame is fixed with a lifting driving mechanism, and the lifting driving mechanism is fixed with a motor rear end cover compressing plate; the motor rear end cover compressing plate is provided with a number of long screw abdicating grooves corresponding to long screw through holes on the motor rear end cover; the base is provided with a front output shaft groove through which a motor front output shaft can pass, and the motor front end cover positioning plate is provided with a bearing chamber positioning groove which is matched with a motor front bearing chamber; and the motor rear compressing plate is provided with an outgoing line guide groove which is configured to accommodate a motor rear end cover outgoing line.
    Type: Application
    Filed: May 29, 2016
    Publication date: March 2, 2017
    Applicant: ZHEJIANG LINIX MOTOR CO., LTD.
    Inventors: ZHUBING SUN, YAOHUI MA