Patents by Inventor Tan Sun

Tan Sun 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: 12649630
    Abstract: An apparatus and a method for quality grading, sorting, and conveying cucumbers are provided. The method includes: driving a multi-groove bearing tray with a cucumber placed at the top by a chain rod conveying mechanism to reach a strip-shaped belt conveying mechanism, where each of gaps between every two adjacent arc-shaped grooves of the multi-groove bearing tray is larger than a width of a corresponding one of the strip-shaped conveying belt branches, the multi-groove bearing tray overlaps with the strip-shaped belt conveying mechanism, and the cucumber at the top of the multi-groove bearing tray is higher than the strip-shaped conveying belt branches; and decreasing a distance between the cucumber placed at the top of the multi-groove bearing tray and the strip-shaped conveying belt branches continuously until the bottom of the cucumber is in contact with the strip-shaped conveying belt branches.
    Type: Grant
    Filed: June 21, 2023
    Date of Patent: June 9, 2026
    Assignee: AGRICULTURAL INFORMATION INSTITUTE OF CHINESE ACADEMY OF AGRICULTRAL SCIENCE
    Inventors: Xiujuan Chai, Xiangpeng Fan, Ning Zhang, Qixin Sun, Wenrong Zhang, Tan Sun
  • Publication number: 20250289666
    Abstract: An apparatus and a method for quality grading, sorting, and conveying cucumbers are provided. The method includes: driving a multi-groove bearing tray with a cucumber placed at the top by a chain rod conveying mechanism to reach a strip-shaped belt conveying mechanism, where each of gaps between every two adjacent arc-shaped grooves of the multi-groove bearing tray is larger than a width of a corresponding one of the strip-shaped conveying belt branches, the multi-groove bearing tray overlaps with the strip-shaped belt conveying mechanism, and the cucumber at the top of the multi-groove bearing tray is higher than the strip-shaped conveying belt branches; and decreasing a distance between the cucumber placed at the top of the multi-groove bearing tray and the strip-shaped conveying belt branches continuously until the bottom of the cucumber is in contact with the strip-shaped conveying belt branches.
    Type: Application
    Filed: June 21, 2023
    Publication date: September 18, 2025
    Inventors: Xiujuan CHAI, Xiangpeng FAN, Ning ZHANG, Qixin SUN, Wenrong ZHANG, Tan SUN
  • Publication number: 20250191361
    Abstract: A factory mushroom picking robot includes a mobile platform, a chassis (100), a lifting device (200), a mushroom stick take-up device (300) and a mushroom picking device (400). The mushroom stick take-up device (300) is configured to take mushroom sticks out of a mushroom rack (4), and the mushroom sticks from different layers are taken through the lifting device (200). The mushroom picking device (400) includes a mechanical arm (402) and an execution end (403). The image data of the mushroom sticks are acquired through three depth cameras. Mushroom targets to be picked are identified through multi-view target matching and are divided in terms of the quality grade, so as to achieve graded picking. A vision-based graded picking method, a mushroom detection and grading method based on multi-view fusion and a non-transitory storage medium of executing corresponding method are further provided.
    Type: Application
    Filed: February 13, 2025
    Publication date: June 12, 2025
    Inventors: Xiujuan CHAI, Shulong ZHAO, Shuo ZHOU, Ning ZHANG, Qixin SUN, Tan SUN
  • Publication number: 20250176482
    Abstract: This application relates to a collaborative control method for a picking robot based on collaborative picking and collection of mushrooms, including the following steps: picking, by a suction cup, the mushrooms, and conveying, by a built-in conveying apparatus, the mushrooms to a discharge port; dynamically adjusting a movement path of the picking robot; synchronously moving a receiving mechanism and the picking robot, and ensuring the receiving mechanism to be aligned to the discharge port; separating, by a separating apparatus, mushrooms that meet a quality standard and unqualified mushrooms, where the mushrooms that meet a quality standard and the unqualified mushrooms respectively enter a first dropping hopper and a second dropping hopper; grading the mushrooms in the first dropping hopper for a second time, classifying the mushrooms based on volumes and diameters of the mushrooms; when any dropping hopper is to be fully loaded, triggering the receiving mechanism to alternately operate.
    Type: Application
    Filed: February 12, 2025
    Publication date: June 5, 2025
    Inventors: Ning ZHANG, Xiujuan CHAI, Zhiyu SONG, Shuo ZHOU, Tan SUN
  • Publication number: 20090257651
    Abstract: A method of compressing at least a part of a digital image comprises the steps of: dividing said digital image into groups of pixels; assigning a first information to each group of pixels wherein said first information indicates at least two reference colors selected for said group of pixels and, for each pixel in said group of pixels, which reference color or combination thereof is selected; assigning a second information to each group of pixels indicating a mode of compression used for said group of pixels; said first information indicating at least a third color for at least one of said groups of pixels.
    Type: Application
    Filed: April 2, 2009
    Publication date: October 15, 2009
    Applicant: STMICROELECTRONICS (GRENOBLE) SAS
    Inventors: Gilles Ries, Tan Sun