公开(公告)号：US11994838B1

公开(公告)日：2024-05-28

申请号：US18583904

申请日：2024-02-22

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Jian Gao ,  Guixin Zhang ,  Yuheng Luo ,  Lanyu Zhang ,  Haixiang Deng ,  Yun Chen ,  Xin Chen

IPC: G05B19/4103

CPC classification number: G05B19/4103 ,  G05B2219/34169

Abstract: A five-axis linkage synchronous tool path interpolation method and system, which utilizes the strict proportional coefficient relationship between points, control points and parameters on the first-order derivative curve of the spline curve, more accurate tool axis path curve interpolation points from the parameters of the tool tip path curve are calculated. There is no need to calculate the tool axis path curve interpolation points according to interval synchronization. It is not affected by the shape consistency of the tool tip path curve and the tool axis path curve.

公开(公告)号：US11845663B2

公开(公告)日：2023-12-19

申请号：US18146378

申请日：2022-12-25

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Huilong Liu ,  Yun Chen ,  Xin Chen ,  Yixin Zheng ,  Kyoung-Sik Moon ,  Dachuang Shi ,  Jian Gao ,  Ching-Ping Wong

IPC: C01B32/184 ,  C01B32/196

CPC classification number: C01B32/184 ,  C01B32/196 ,  C01P2002/82 ,  C01P2002/85 ,  C01P2004/04

Abstract: A method for integrally forming a graphene film (GF) of a high specific surface area (SSA) by ultrafast ultraviolet (UV) laser processing, includes: selecting a carbon precursor material, where the carbon precursor material is one selected from the group consisting of a biomass/hydrogel composite and a heavy hydrocarbon compound; adding an activator solution to an inside of the carbon precursor material to obtain a composite with an activator uniformly loaded, and spreading the composite on a flexible substrate to form a carbon precursor material layer; heating and drying the carbon precursor material layer; in-situ processing with an ultrafast UV laser to obtain an activated GF of a high SSA; and cleaning and drying the activated GF. With the method of the present disclosure, a microporous activated GF of a high SSA can be directly processed in-situ on a flexible substrate.

公开(公告)号：US11709467B2

公开(公告)日：2023-07-25

申请号：US17991936

申请日：2022-11-22

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Jian Gao ,  Guixin Zhang ,  Lanyu Zhang ,  Haixiang Deng ,  Yun Chen ,  Yunbo He ,  Xin Chen

IPC: G05B19/04 ,  G06F17/16

CPC classification number: G05B19/041 ,  G06F17/16

Abstract: A time optimal speed planning method and system based on constraint classification. The method comprises: reading path information and carrying out curve fitting to obtain a path curve; sampling the path curve, and considering static constraint to obtain a static upper bound value of a speed curve; considering dynamic constraint, and combining the static upper bound value of the speed curve to construct a time optimal speed model; carrying out convex transformation on the time optimal speed model to obtain a convex model; and solving the convex model based on a quadratic sequence planning method to obtain a final speed curve. The system comprises: a path curve module, a static constraint module, a dynamic constraint module, a model transformation module and a solving module.

公开(公告)号：US11365960B1

公开(公告)日：2022-06-21

申请号：US17581245

申请日：2022-01-21

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Lanyu Zhang ,  Jian Gao ,  Junlang Liang ,  Yun Chen ,  Yunbo He ,  Xin Chen

IPC: G01B5/008 ,  G01B5/00 ,  G01B3/00

Abstract: An XY macro-micro motion stage and a control method thereof based on end feedback. The XY macro-micro motion stage includes a fine-adjusting assembly, a macro-driving assembly and an XY position detecting device. The macro-driving assembly includes an X-direction macro-driving unit, a Y-direction macro-driving unit, an X-direction mounting plate and a Y-direction mounting plate. The XY position detecting device is configured to obtain its position on the X axis and Y axis.

公开(公告)号：US11331689B1

公开(公告)日：2022-05-17

申请号：US17560464

申请日：2021-12-23

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Yun Chen ,  Yuanhui Guo ,  Yixuan Bu ,  Shuquan Ding ,  Shengyu Hou ,  Junyu Long ,  Xun Chen ,  Xin Chen ,  Jian Gao

IPC: B05D1/38 ,  B05D3/12 ,  B05D3/06 ,  B05C9/08 ,  H05K1/02 ,  C01B32/194 ,  C09D5/20

Abstract: This application relates to an apparatus for producing a graphene film with a thermal manipulation function. The apparatus includes a filter cup, a filter flask, a vacuum pump, a fixing clamp, and a laser. The fixing clamp is configured to clamp a first filter membrane and a second filter membrane. The laser is configured to irradiate the first filter membrane. The first filter membrane and the second filter membrane are arranged stackedly. The filter cup and the filter flask are in snap fit up and down. The first filter membrane and the second filter membrane are arranged between the filter cup and the filter flask. The vacuum pump is in communication with the filter flask. This application also provides a method for producing the graphene film with a thermal manipulation function.

公开(公告)号：US10914575B1

公开(公告)日：2021-02-09

申请号：US17031306

申请日：2020-09-24

Applicant: Guangdong University of Technology

Inventor： Jian Gao ,  Jianhua Mo ,  Lanyu Zhang ,  Zhuoyun Zheng ,  Xin Chen ,  Yun Chen ,  Yunbo He

IPC: G01B11/25 ,  H04N5/225

Abstract: A composite sine-trapezoidal fringe structured light 3D measurement method includes projecting trapezoidal fringe patterns onto a measured object and capturing fringe images; sorting the fringe images by brightness, resolving them into uniform light images and sinusoidal light images, and obtaining a sub-region ordinal number of each image; using the uniform light image to identify a strength response model of the captured fringe image, and obtaining a strength response model parameter; an actual projection strength, a sub-region phase of the sinusoidal light image according to the actual projection strength, a wrapped phase according to sub-region phase and sub-region ordinal number, an absolute phase according to the wrapped phase and sub-region ordinal number, a surface point of the measured object at the positions of a projector pixel and a camera pixel according to the absolute phase, and an object surface model of the measured object by a reconstruction by triangulation.

公开(公告)号：US20170087677A1

公开(公告)日：2017-03-30

申请号：US15376658

申请日：2016-12-13

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Zhijun Yang ,  Youdun Bai ,  Xin Chen ,  Jian Gao ,  Xindu Chen ,  Yunbo He ,  Yun Chen ,  Ruiqi Li ,  Chaoran Chen

IPC: B23Q1/25 ,  B25H1/02

CPC classification number: B23Q1/25 ,  B23Q1/34 ,  B23Q11/0039 ,  B25H1/02

Abstract: The present invention proposes a macro-micro integrated compound platform with adjustable dynamic characteristics. When a macro platform mover and a micro platform mover are driven at the same time, the whole large-scale high-speed motion can be realized; when a motion deviation occurs, a micro motion platform can be driven separately to realize the high-frequency motion deviation compensation, because the micro motion platform has small inertia and zero friction and achieves precision displacement output through elastic deformation. The macro-micro integrated compound platform can realize high-speed precision motion through compound motion control, is mounted and used in a manner consistent with the traditional platform, and is convenient to be popularized and applied; a stiffness and frequency adjustment mechanism and a variable damper are arranged, so that the micro motion platform can transfer the motion of a macro motion platform and isolate the vibration at any frequency, and realize high-precision displacement compensation; meanwhile, damping of the variable damper is matched with the stiffness and frequency parameters to ensure the high-precision displacement compensation at any frequency and increase the range of working frequency.