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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.
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公开(公告)号：US11919177B1
公开(公告)日：2024-03-05
申请号：US18482887
申请日：2023-10-08
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Jian Gao , Zhenyu Zheng , Zhuojun Zheng , Lanyu Zhang , Yuheng Luo , Haixiang Deng , Xin Chen
IPC: B25J9/16
CPC classification number: B25J9/1694 , B25J9/1697
Abstract: A tracking measurement method, apparatus and device for a pose of a tail end of a manipulator. The method comprises: shooting a first calibration board mounted at the tail end of the manipulator by a monocular measurement camera, acquiring multiple sets of first transformation matrices, and mounting the monocular measurement camera on a pitch axis of a pan-tilt; shooting a second calibration board by a global camera, and acquiring multiple sets of second transformation matrices; when a calibration center of the first calibration board is in a center of a field of view of the monocular measurement camera, calculating a measured pose of the tail end of the manipulator; and when the calibration center of the first calibration board deviates from the center of the field of view of the monocular measurement camera, calculating a direction deviation angle, and adjusting the pitch axis and a horizontal axis of the pan-tilt.
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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.
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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
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.
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公开(公告)号：US11597048B2
公开(公告)日：2023-03-07
申请号：US16814274
申请日：2020-03-10
Applicant: Guangdong University of Technology
Inventor： Sujuan Wang , Hailong Wang , Xin Chen , Senbin Xia
Abstract: A method and system for optimal control of ultra-precision cutting. The method for optimal control is based on time-precipitates-temperature characteristics of Al—Mg—Si series aluminum alloy, and includes first determining types of precipitates of machined materials, and establishing a Lifshitz-Slyozov-Wagner (LSW) model of each precipitate. A temperature range is determined corresponding to each precipitate according to the LSW model to obtain a comprehensive temperature range. A relation model is established between cutting parameters and a cutting temperature according to the LSW model. Finally the cutting parameters are optimized according to the comprehensive temperature range and the relation model, so that the cutting temperature is beyond the comprehensive temperature range to inhibit the generation of the precipitates.
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Patent Agency Ranking
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
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.
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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
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.
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公开(公告)号：US10990087B2
公开(公告)日：2021-04-27
申请号：US16819178
申请日：2020-03-16
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Qiang Liu , Hao Zhang , Xin Chen , Kuanyuan Li , Jiewu Leng
Abstract: A parallel control method for an intelligent workshop is provided, comprising the following steps: step A: constructing a parallel control simulation platform; step B: establishing a parallel execution mechanism; and, step C: correcting and optimizing a parallel control system. A parallel control system for an intelligent workshop is provided, comprising: an MES module configured to issue production instructions to unit management modules; the unit management modules configured to convert the received production instructions into machine instructions and synchronously issue the machine instructions to underlying PLCs by a bus control network module, and drive the parallel control simulation platform and a field device to move by a soft PLC and a hard PLC; the bus control network module configured to establish a communication network among the MES module, an SCADA module, an industrial personal computer, physical devices and a whole-line simulation model; and, the SCADA module.
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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
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.
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公开(公告)号：US10239167B2
公开(公告)日：2019-03-26
申请号：US15114090
申请日：2014-09-24
Applicant: Guangdong University of Technology
Inventor： Zhijun Yang , Youdun Bai , Xin Chen , Jian Gao , Haidong Yang , Meng Wang , Hui Tang
Abstract: The present disclosure involves occasions where precise two-dimensional motion takes place, and is applicable to XY motion stages for precise displacement compensation. The present disclosure particularly involves a stiffness-frequency adjustable XY micromotion stage based on stress stiffening, which includes X-direction and Y-direction motion sub-stages and corresponding drivers and a micromotion working table. The micromotion stage uses membrane sets that have tension levels thereof adjusted by bolts as a flexible hinge, so as to achieve independent adjustment of the vibration frequency of the XY micromotion stage. The present disclosure implements the foregoing configuration based on prestressed membrane, so the frequency is adjustable. The inherent frequency of the micromotion stage can be adjusted before or during operation according to various working conditions and driving frequency. The two feed motion direction are perpendicular so as to prevent the micromotion working table from coupling during two-dimensional motion.
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