Patents by Inventor Jiguang Yuan

Jiguang Yuan 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).

  • Publication number: 20240100633
    Abstract: A method and device for determining a welding seam quality detection region, a computer and a storage medium are disclosed. By comparing the welding seam edge image identified from the two-dimensional welding image with the welding seam target datum line identified from the three-dimensional composite image, when the offset comparison result is consistent with the preset threshold range, the welding seam edge image can be determined as the weld quality detection region. Since the welding seam edge image can be obtained more accurately by identifying the two-dimensional welding image than by identifying the three-dimensional welding image, while the welding seam target datum line can be obtained more accurately by identifying the three-dimensional welding image than by identifying the two-dimensional welding image, the welding seam quality detection region obtained by the method of the disclosure can be more accurate.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 28, 2024
    Inventors: Hanhui Fu, Jiguang Yuan
  • Publication number: 20230139733
    Abstract: A weld quality inspection method, apparatus and system and an electronic device are disclosed. The weld quality inspection method provided by the embodiments of the disclosure includes: acquiring point cloud data of a target weldment, and converting the point cloud data into a height map; determining a weld region for characterizing a target weld from the height map; analyzing the weld region to obtain a feature parameter of the target weld; and obtaining a quality inspection result of the target weld according to the feature parameter, where the target weldment includes a base material, a welding part and the target weld formed by welding the welding part to the base material.
    Type: Application
    Filed: April 14, 2021
    Publication date: May 4, 2023
    Inventors: Zhijian MO, Bing DU, Jiguang YUAN, Yixian DU, Junxiong ZHOU, Junjie ZHOU
  • Publication number: 20090052882
    Abstract: A flash lamp device including at least a main control circuit having a microprocessor and an operation control circuit connected to the main control circuit. The main control circuit is coupled to an LCD control and display circuit and a software module controlling said LCD control and display circuit.
    Type: Application
    Filed: August 22, 2008
    Publication date: February 26, 2009
    Inventors: YiFei Pu, Jiguang Yuan