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公开(公告)号：US12289932B2
公开(公告)日：2025-04-29
申请号：US18769413
申请日：2024-07-11
Applicant: Guangdong University of Technology
Inventor： Yun Chen , Yanhui Chen , Li Ma , Hao Zhang , Jintao Chen , Maoxiang Hou , Xin Chen
Abstract: An ejector pin sliding on membrane-based device and method for mass transfer of mini light-emitting diodes (Mini-LEDs) are provided. The device includes a gantry transverse beam. The gantry transverse beam is provided with an ejector pin base, and the ejector pin base is configured to move along the gantry transverse beam. The ejector pin base is fixedly provided with a vision camera and an ejector pin. A blue membrane is horizontally provided at a side of the gantry transverse beam close to the ejector pin, and is spaced from the gantry beam. A surface of a side of the blue membrane away from the gantry transverse beam is adhesively provided with a plurality of Mini-LED chips arranged evenly. A transfer substrate is horizontally provided at a side of the blue membrane close to the plurality of Mini-LED chips, and is spaced from the blue membrane.
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公开(公告)号：US12117782B2
公开(公告)日：2024-10-15
申请号：US18430513
申请日：2024-02-01
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Lanyu Zhang , Boyu Zhan , Jian Gao , Yachao Liu , Yun Chen , Xin Chen , Nan Huang , Huake Wang , Xuanzhu Chen
CPC classification number: G05B13/042 , G05B13/048 , H02P25/06
Abstract: A linear motor motion control method, device, equipment and storage medium. The proposed invention uses an extended state observer constructed in advance based on the model parameters of the linear motor, and performs state estimation based on the total control amount of the linear motor and the actual displacement signal to obtain each observation signal. The phase advance controller is used to improve the estimated lag of the disturbance observation signal, and a model prediction controller built in advance based on the mathematical model of the linear motor is used to perform rolling optimization based on each observation signal to obtain the optimal control amount increment; The total control amount is updated based on the improved disturbance observation signal and the optimal control amount increment, and the corresponding drive signal is output to the drive end of the linear motor based on the updated total control amount.
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3.发明授权公开(公告)号：US11959743B1
公开(公告)日：2024-04-16
申请号：US18482870
申请日：2023-10-07
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Jian Gao , Disai Chen , Yuheng Luo , Lanyu Zhang , Zhuojun Zheng , Guoqing Wu , Xin Chen
CPC classification number: G01B9/02083 , G01C15/00 , G05B13/042
Abstract: A dimensionless kinematics calibration method based on a virtual point and a related apparatus thereof. The method comprises: establishing a kinematics model of a motion mechanism, and arranging a plurality of virtual points at a tail end of the motion mechanism to establish a dimensionless kinematics model and a dimensionless error model; converting a measurement coordinate system into a motion mechanism coordinate system, acquiring a rotation matrix and a translation matrix of a target virtual point measured by the measurement device, and calculating actual coordinates of all virtual points to obtain a measured value of the dimensionless kinematics model; calculating a theoretical value of the dimensionless kinematics model according to a spatial relationship between a reflecting head and the tail end of the motion mechanism; and optimizing the dimensionless error model according to the measured value and the theoretical value to obtain a calibration result.
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公开(公告)号：US11689737B1
公开(公告)日：2023-06-27
申请号：US18065530
申请日：2022-12-13
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Jian Gao , Yuanyang Wei , Lanyu Zhang , Haixiang Deng , Yun Chen , Xin Chen
IPC: H04N7/12 , H04N19/513 , H04N19/172
CPC classification number: H04N19/513 , H04N19/172
Abstract: Disclosed are a plane coding target and an image splicing system and method applying the same. The plane coding target comprises a plurality of coding units distributed in an array, the coding unit comprises one central coding point, a plurality of normal coding points and at least one positioning point, and a positioning point distribution style of the positioning point is used for determining coordinates of the central coding point and the normal coding points in a coding unit coordinate system; and coding numerical value sequences of the coding units are different from each other and unique. The plane coding target can realize large-area coding and positioning functions, and the image splicing system applying the plane coding target can solve the problems of splicing error and error accumulation caused by an identification error of a splicing location, thus realizing large-range, high-precision and short-time two-dimensional image splicing.
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5.发明授权公开(公告)号：US11569762B2
公开(公告)日：2023-01-31
申请号：US16950062
申请日：2020-11-17
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Jian Gao , Jindi Zhang , Yuheng Luo , Lingwei Tan , Lanyu Zhang , Xin Chen
Abstract: The present disclosure relates to the technical field of mechanical precision manufacturing, in particular to a motor tracking error reduction method and an implementation device based on a micro-drive unit. A motor tracking error reduction method based on micro-drive unit includes: providing a motor mover as the working output end, and feeding back the position information of the motor mover to the micro-drive controller in real time by the sensor; controlling the micro-drive unit to compensate the displacement of the motor mover by the micro-drive controller; correcting the tracking error of the motor mover after the displacement compensation, and feeding back the tracking error information after correction to the motor controller. The error reduction method and implementation device in the present disclosure reduce the motor tracking error and solve the problem of coupling interference. In addition, the single position feedback is used to reduce the production cost.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11211357B2
公开(公告)日：2021-12-28
申请号：US17037909
申请日：2020-09-30
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Yun Chen , Shuquan Ding , Yunbo He , Maoxiang Hou , Xin Chen , Jian Gao , Ni Zhao , Lanyu Zhang , Zhengping Wang
IPC: H01L23/00 , B23K20/00 , B23K26/34 , B23K37/047 , B23K101/32 , B23K103/00 , B23K103/08 , B23K101/38
Abstract: A method for processing an ultra-high density interconnect wire under light source guidance, comprising preparing a photo-thermal response conductive paste, and putting it into an air pressure injector; driving the air pressure injector; the air pressure injector extrudes the photo-thermal response conductive paste, so that the photo-thermal response conductive paste is connected with the first chip to form an interconnection wire; stopping extruding the photo-thermal response conductive paste, and driving the air pressure injector to pull off the interconnection wire; a linear light source emits light and irradiates on the interconnection wire to bend to an upper side of a second chip bonding pad; an extrusion mechanism presses a free end of the interconnection wire on the second chip bonding pad; the first chip and the second chip are subjected to glue dripping encapsulation.
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公开(公告)号：US10915096B2
公开(公告)日：2021-02-09
申请号：US16820638
申请日：2020-03-16
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Qiang Liu , Jiewu Leng , Ding Zhang , Xin Chen , Lijun Wei
IPC: G05B19/418
Abstract: The present invention relates to the technical field of industrial automation, and in particular to a method and system for quick customized-design of an intelligent workshop. The method comprises the following steps: step A: acquiring design requirement information of a production line, and performing modeling in a simulation system according to the design requirement information; step B: performing action planning of a physical stand-alone device, performing logistics and motion planning of articles being processed, and compiling motion and action control scripts; step C: establishing, by the digital twin technology, a communication channel among a PLC system of the workshop digitization model, a PLC system of a physical workshop device and a host computer; and, step D: outputting a three-dimensional digital twin model as a blueprint for follow-up design and development of the stand-alone device, a control system and an execution system.
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公开(公告)号：US10468265B1
公开(公告)日：2019-11-05
申请号：US16383885
申请日：2019-04-15
Applicant: Guangdong University of Technology
Inventor： Xin Chen , Yun Chen , Dachuang Shi , Xun Chen , Qiang Liu , Jian Gao , Chengqiang Cui
IPC: H01L31/0216 , B81C1/00 , H01L21/308 , H01L21/306
Abstract: A method for synchronous wet etching processing of differential microstructures, including the following steps: step a: performing photoetching on a processing surface of a workpiece to be processed to develop the workpiece; step b: affixing a mask to a surface opposite to the processing surface of the workpiece; step c: continuously cooling the mask; step d: placing the cooled mask and the workpiece in a wet etching device; and adding an etchant to the processing surface of the workpiece to start etching; step e: removing the mask and the workpiece from the wet etching device after the set etching time; separating the mask and the workpiece to obtain a workpiece with a etching structure. A temperature difference is formed between the pattern area to be processed and the retaining area.
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公开(公告)号：US10427936B2
公开(公告)日：2019-10-01
申请号：US16221457
申请日：2018-12-15
Applicant: Guangdong University of Technology
Inventor： Yun Chen , Xin Chen , Dachuang Shi , Jian Gao , Zhengping Wang , Haidong Yang
IPC: B81C1/00 , B82Y40/00 , H01L21/306 , H01L29/06
Abstract: A method of processing nano- and micro-pores includes washing a substrate and cleaning a surface of the substrate; spin-coating photoresist, exposing the substrate and developing to form the substrate with a pattern; 3. depositing micro-nano metal particles on the surface of the substrate; wherein the micro-nano metal particles are centered on a magnetic core; and the surface of the magnetic core is plated with a metal nano-particle coating composed of a plurality of gold, silver or aluminum nanoparticles; removing the photoresist, and maintaining dot arrays of the micro-nano metal particles; applying laser irradiation and a strong uniform magnetic field on the substrate, so that the substrate is processed to form processed structures; and after the processed structures being formed into nano-/micro-pores with targeted pore size, shape and depth, stopping the laser irradiation and removing the strong uniform magnetic field.
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10.发明申请公开(公告)号：US20170124249A1
公开(公告)日：2017-05-04
申请号：US15375174
申请日：2016-12-12
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Zhijun Yang , Youdun Bai , Xin Chen , Jian Gao , Xindu Chen , Yunbo He , Yun Chen , Chengxiang Li , Jianglong Wang
IPC: G06F17/50
CPC classification number: G06F17/5086 , G06F17/5009 , G06F17/5095
Abstract: A high-speed platform motion parameter self-tuning method based on model identification and equivalent simplification is provided, comprising: establishing a test of a motion state of a high-speed platform, identifying model parameters, and optimizing motion parameters of an equivalent simplified model; selecting any motion function from a pre-set parameterized curve, setting initial parameters, and driving the high-speed platform to move under the action of a controller and an actuator; collecting dynamic response information of the platform, calculating dynamic characteristic information of the platform such as stiffness, frequency, damping and the like; establishing a dynamic response equivalent simplified model by using the acquired dynamic characteristic information, and performing the optimization constrained by meeting motion precision and targeting at shorter execution time for the motion parameters in the selected parameterized motion function to obtain the optimum parameters. The method of the present invention gives consideration to the dynamic characteristic requirement of the platform and the comprehensive requirement of the parameter identification and optimization on the industrial site, facilitates the implementation of an algorithm in a motion control card, and is suitable for rapidly acquiring the optimum motion parameters of the actual high-speed platform on site.
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