Patents by Inventor Qingyuan LIN

Qingyuan 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).

  • Publication number: 20250095109
    Abstract: Disclosed are a method, a device and an equipment for removing ghosting based on an electronic ink screen and a storage medium. The method includes: performing image mergence on a current frame binarization image of the electronic ink screen and a ghosting image of a previous frame binarization image of the electronic ink screen, and obtaining a current frame merged image containing ghosting position information of a previous frame image; performing a pixel comparison operation on a previous frame merged image and the current frame merged image, and obtaining index data; and outputting a target display image without the ghosting according to the index data.
    Type: Application
    Filed: September 18, 2024
    Publication date: March 20, 2025
    Applicant: Shenzhen Dawo Cloud Reading and Writing Technology Co., Ltd.
    Inventors: Qingyuan LIN, Junxi OU
  • Patent number: 11209327
    Abstract: The present invention belongs to the technical field of multiple bolt transverse load loosing testers, and relates to a closed loop control method for transverse load amplitude of multiple bolt loosing tester. The closed loop control method is used to conduct stepless amplitude modulation and accurate control for transverse loads of a multiple bolt loosing tester, thereby realizing stepless amplitude modulation and accurate control for the transverse loads. The closed loop control method is realized based on the multiple bolt loosing tester. The multiple bolt loosing tester consists of four parts: a transverse load amplitude control part, a transverse load transmission part, a torque load transmission part and an axial load transmission part. The present invention can provide stepless amplitude modulation continuous transverse loads for a flange bolt set and guarantee the accuracy of the transverse loads through a closed loop control system.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: December 28, 2021
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Qingchao Sun, Qingyuan Lin, Bao Zhang, Bin Yang, Xiaokai Mu
  • Patent number: 11131591
    Abstract: The present invention belongs to the technical field of joint surface pressure detection of connecting pieces, and provides an FBG sensor-based bolt fastening joint surface pressure detection method, comprising the steps of determining the size and the position of an FBG sensor; and determining the pressure of a joint surface measuring position on the basis of the single bolt connection joint surface pressure distribution theory, and completing calibration in real-time correspondence to the strain and pressure values to realize precise detection of the joint surface pressure. Determining the size and the position of the FBG sensor embedding slot according to the above method can ensure the reliability and accuracy of strain information; and an accurate strain-joint surface pressure curve can be obtained in combination with the determination of the joint surface pressure, which provides a practical and feasible method for the research on the bolt connection joint surface pressure.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: September 28, 2021
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Qingchao Sun, Xiaodong Li, Qingyuan Lin, Xiaokai Mu
  • Patent number: 11073455
    Abstract: The present invention belongs to the technical field of mechanical testing devices, and provides a transverse load stepless amplitude modulation device of multiple bolt loosing tester. The transverse load stepless amplitude modulation device of multiple bolt loosing tester consists of four parts: a transverse load stepless amplitude modulation part, a transverse load transmission part, a torque load transmission part and an axial load transmission part. The transverse load stepless amplitude modulation device of multiple bolt loosing tester of the present invention provides stepless amplitude modulation continuous transverse loads for a flange bolt set and guarantees the accuracy of the transverse loads through a feedback control system.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: July 27, 2021
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Qingchao Sun, Qingyuan Lin, Bao Zhang, Xiaokai Mu, Bin Yang
  • Publication number: 20200309624
    Abstract: The present invention belongs to the technical field of multiple bolt transverse load loosing testers, and relates to a closed loop control method for transverse load amplitude of multiple bolt loosing tester. The closed loop control method is used to conduct stepless amplitude modulation and accurate control for transverse loads of a multiple bolt loosing tester, thereby realizing stepless amplitude modulation and accurate control for the transverse loads. The closed loop control method is realized based on the multiple bolt loosing tester. The multiple bolt loosing tester consists of four parts: a transverse load amplitude control part, a transverse load transmission part, a torque load transmission part and an axial load transmission part. The present invention can provide stepless amplitude modulation continuous transverse loads for a flange bolt set and guarantee the accuracy of the transverse loads through a closed loop control system.
    Type: Application
    Filed: July 17, 2018
    Publication date: October 1, 2020
    Inventors: Qingchao SUN, Qingyuan LIN, Bao ZHANG, Bin YANG, Xiaokai MU
  • Publication number: 20200284669
    Abstract: The present invention belongs to the technical field of joint surface pressure detection of connecting pieces, and provides an FBG sensor-based bolt fastening joint surface pressure detection method, comprising the steps of determining the size and the position of an FBG sensor; and determining the pressure of a joint surface measuring position on the basis of the single bolt connection joint surface pressure distribution theory, and completing calibration in real-time correspondence to the strain and pressure values to realize precise detection of the joint surface pressure. Determining the size and the position of the FBG sensor embedding slot according to the above method can ensure the reliability and accuracy of strain information; and an accurate strain-joint surface pressure curve can be obtained in combination with the determination of the joint surface pressure, which provides a practical and feasible method for the research on the bolt connection joint surface pressure.
    Type: Application
    Filed: August 22, 2018
    Publication date: September 10, 2020
    Inventors: Qingchao SUN, Xiaodong LI, Qingyuan LIN, Xiaokai MU
  • Publication number: 20200264085
    Abstract: The present invention belongs to the technical field of mechanical testing devices, and provides a transverse load stepless amplitude modulation device of multiple bolt loosing tester. The transverse load stepless amplitude modulation device of multiple bolt loosing tester consists of four parts: a transverse load stepless amplitude modulation part, a transverse load transmission part, a torque load transmission part and an axial load transmission part. The transverse load stepless amplitude modulation device of multiple bolt loosing tester of the present invention provides stepless amplitude modulation continuous transverse loads for a flange bolt set and guarantees the accuracy of the transverse loads through a feedback control system.
    Type: Application
    Filed: July 17, 2018
    Publication date: August 20, 2020
    Inventors: Qingchao SUN, Qingyuan LIN, Bao ZHANG, Xiaokai MU, Bin YANG
  • Patent number: 10620069
    Abstract: The present invention belongs to the technical field of mechanical test devices, and provides a multi-bolt loosening test machine for flange with tension and bending compound loading, which is a test machine researching the anti-looseness properties of bolts by applying tension, bending and torsion compound loading to multi-bolt connection flanges. The multi-bolt loosening test machine for flange with tension and bending compound loading uses a transverse load generated by a three-phase asynchronous motor as a bending load applied to a flange, uses a tension force generated by a hydraulic puller as an axial tension load, is different from the current device that can apply two compound loads to a single bolt, and can apply two compound loads to the multi-bolt connection flanges. The present invention can isolate two compound loads from each other without interference, and display the applied loads in real time.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 14, 2020
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Qingchao Sun, Bao Zhang, Qingyuan Lin, Wei Sun, Bin Yang
  • Patent number: 10598567
    Abstract: The present invention provides a multi-bolt loosening test machine for flange with tension, bending and torsion compound loading. The multi-bolt loosening test machine for flange with tension, bending and torsion compound loading uses a transverse load generated by a three-phase asynchronous motor as a bending load applied to a flange, uses a tension force generated by a hydraulic puller as an axial tension load, and uses a torque generated by a servo motor as a torque load applied to the flange. The test machine is different from the current device that can apply two compound loads to a single bolt, and can apply three compound loads to the multi-bolt connection flanges. The present invention can isolate three compound loads from each other without interference, and display the applied loads in real time.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: March 24, 2020
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Qingchao Sun, Bao Zhang, Qingyuan Lin, Wei Sun, Bin Yang
  • Publication number: 20200080905
    Abstract: The present invention belongs to the technical field of mechanical test devices, and provides a multi-bolt loosening test machine for flange with tension and bending compound loading, which is a test machine researching the anti-looseness properties of bolts by applying tension, bending and torsion compound loading to multi-bolt connection flanges. The multi-bolt loosening test machine for flange with tension and bending compound loading uses a transverse load generated by a three-phase asynchronous motor as a bending load applied to a flange, uses a tension force generated by a hydraulic puller as an axial tension load, is different from the current device that can apply two compound loads to a single bolt, and can apply two compound loads to the multi-bolt connection flanges. The present invention can isolate two compound loads from each other without interference, and display the applied loads in real time.
    Type: Application
    Filed: March 15, 2018
    Publication date: March 12, 2020
    Inventors: Qingchao SUN, Bao ZHANG, Qingyuan LIN, Wei SUN, Bin YANG
  • Publication number: 20200080914
    Abstract: The present invention provides a multi-bolt loosening test machine for flange with tension, bending and torsion compound loading. The multi-bolt loosening test machine for flange with tension, bending and torsion compound loading uses a transverse load generated by a three-phase asynchronous motor as a bending load applied to a flange, uses a tension force generated by a hydraulic puller as an axial tension load, and uses a torque generated by a servo motor as a torque load applied to the flange. The test machine is different from the current device that can apply two compound loads to a single bolt, and can apply three compound loads to the multi-bolt connection flanges. The present invention can isolate three compound loads from each other without interference, and display the applied loads in real time.
    Type: Application
    Filed: March 15, 2018
    Publication date: March 12, 2020
    Inventors: Qingchao SUN, Bao ZHANG, Qingyuan LIN, Wei SUN, Bin YANG